CN104723097B - Butterfly valve assembling line - Google Patents

Abstract

The invention relates to a butterfly valve assembling line. The butterfly valve assembling line is characterized by comprising a plurality of facilities and belt conveyors which are arranged between every two neighboring facilities, the facilities and the belt conveyors are arranged along the assembly sequence, the facilities which are arranged sequentially are a shaft sleeve installing machine, a scutcheon installing table, a butterfly valve assembly machine used for installing valve seats, valve plates and valve shafts, a limit gland fixing table, a valve plate close leveling device, an arresting disc or a hand shank or a screwed plug installing table, a first sealing property testing machine, an arresting disc or a hand shank fixing table, an installing table for taper pins, a second sealing property testing machine and a driving head installing table; the butterfly valve assembly machine comprises a rack, a positioning fixture capable of disassembling and replacing valve bodies, a positioning fixture capable of disassembling and replacing valve plates, a positioning fixture capable of disassembling and replacing valve seats, a valve shaft oil cylinder top depressor and a lower valve shaft electric wrench top depressor, the valve plate close leveling device is a valve plate level pressure device of a pneumatic butterfly valve, and the first sealing property testing machine is a full-automatic butterfly valve sealing property testing machine. The butterfly valve assembling line has the advantages of being automatic, efficient and high in quality.

Description

Butterfly valve assembling line

Technical field

The present invention relates to butterfly valve Assembling Production technical field, more particularly to a kind of butterfly valve assembling line.

Background technology

There is butterfly valve simple structure, small volume, lightweight, material consumption to save, and installation dimension is little, and switch is rapid, driving force The features such as square is little, it is simple to operate for the medium for blocking, connecting, adjust in pipeline, with good fluid handling properties, mesh Before be widely used in the fields such as oil, coal gas, chemical industry, water process.Butterfly valve mainly include take, the annular valve of lower valve neck, It is inlaid in round ring seat on valve interior wall, circular valve plate and inserts via the axis hole at upper lower valve neck axis hole, valve seat two ends respectively Enter the upper lower valve shaft (twin shaft butterfly valve) in the upper and lower axis hole of valve plate, or via upper valve neck axis hole, the axis hole at valve seat two ends, valve plate axis hole Axis (axis butterfly valve) in insertion lower valve neck axis hole.When using, its disc valve plate is with valve shaft perpendicular to Pipe installing Central shaft reciprocating rotary between 0 °～90 °, realizes fully closed standard-sized sheet.

In butterfly valve manufacture process, the part of processing mainly includes valve body, valve seat, valve plate, valve shaft, axle sleeve, spacing gland, Scale arresting disc and driving means, butterfly valve assembling is mainly included in mounting sleeve on valve body, valve seat, valve plate, valve shaft, then by valve Plate closing leveling carries out pressurization test, and axis butterfly valve is also divided into axis has pin butterfly valve and axis without pin butterfly valve, for axis There is pin butterfly valve, after the pin for installing fixed valve shaft additional, be also performed to secondary seal performance test.The assembling of butterfly valve in current industry The especially assembling of small dimension butterfly valve still based on manual operations, because valve seat and the valve body of butterfly valve are interference fits, valve plate and valve Seat is interference fit, and valve shaft is interference fit with the axis hole of valve seat, therefore, the above each structural member must apply certain outer when assembling Power just can be completed, typically when mounted, by manpower and aid in mallet by valve seat, valve plate, valve shaft load.Because manual force is not advised Model, is not only difficult to ensure that the valve body after installation, valve seat, valve plate axis hole axiality, and because impact easily causes structural member Damage, affect product quality, and labor intensity is high, labor intensive, man-hour, noise is big, has a strong impact on production environment.In recent years Valve seat, shaft installation machine are developed, but the assembling of valve seat, valve shaft is still carried out for separate operaton, in addition, the assembly parts in each operation Round transport, replacing not only elapsed time but also the waste of manpower of frock clamp, reduce production efficiency, improve production cost.

Additionally, butterfly valve is after mounting, valve plate is in inclination opening state, before leakage test, must be incited somebody to action by operator Valve plate turns to horizontal closed position from obliquity.Valve plate horizontal closed operation at present is to add to press-fit using hand-operated valve plate closing Put to complete, this valve plate closed pressurizing device is using manual gear, tooth bar machine driving pressue device, by rotating handss Wheel, the cylindrical rack engaged by gear driven is descending, and driving top-pressure part to push makes valve plate reach closure state, afterwards, Again top-pressure part is resetted by spring.Driven using rack and pinion engagement and spring reset frame for movement, failure be also easy to produce in operation, Especially need to be manually operated, labor intensity of operating staff is big, wastes time and energy, low production efficiency.

Butterfly valve after assembling need to also be required to carry out pressure-resistant seal performance test according to the pressure of applying working condition and standard, really Determine butterfly valve internal cavity airtight performance.Existing butterfly valve seal performance aircraft, adopts by sealing medium of water and once tests one Individual valve and the once structure of test side cavity, this structural test efficiency is low；Also adopt with gas as sealing medium, one It is secondary while testing two or more valve, the structure of both sides cavity once being tested simultaneously, using this structure, butterfly valve and by its cavity The air leakage pipe of extraction is immersed in water, and by the way that whether observation air leakage pipe produces bubble in water leakage, but this knot are determined whether The shortcoming of structure is the gas leakage pipe range because drawing, and gas leakage is not obvious, is also easy to produce erroneous judgement, and using leaching butterfly valve sink structure, is caused Complex structure, wastes water source, affects environment, additionally, placement of the tested butterfly valve on pressure testing plate is by range estimation positioning, inaccurate, shadow Ring being normally carried out for operation；Especially existing test method is still control manually, inefficiency.

In sum, how for the problems referred to above, closure, experiments of sealing performance are flattened to the assembling of existing butterfly valve, valve plate Equipment and operation be improved, and form continuous working production line, realize that high-effect high-quality is assembled, improving work situation becomes Industry concerned issue.

The content of the invention

Present invention is primarily targeted at being directed to the problems referred to above, there is provided a kind of butterfly valve assembling line, by adopting butterfly valve The belt of assembly machine, Pneumatic butterfly valve valve plate horizontal closed pressue device, full-automatic butterfly valve seal assay device and automatic transmission is defeated Machine is sent, the automatic, efficient of butterfly valve Assembling Production process, high-quality is realized and is made operator depart from heavy physical work, changed Kind work situation.

The technical solution adopted for the present invention to solve the technical problems is：

A kind of butterfly valve assembling line, it is characterised in that include some facilities arranged along assembly process order and be arranged on Belt conveyor between per adjacent two facility, some facilities that the order is arranged are respectively the shaft sleeve installation machine of mounting sleeve, The label erecting bed of label is installed, the butterfly valve assembly machine of valve seat, valve plate and valve shaft is installed, to twin shaft butterfly valve spacing gland is fixed The valve plate closure levelling device of spacing gland fixed station, closure and leveling valve plate, installs the stop of arresting disc, handle and plug Disk/handle/plug erecting bed, carry out the first experiments of sealing performance machine of valve seal performance test, fixed stop disk, handle Arresting disc/handle fixed station, has pin butterfly valve to install the taper bolt erecting bed of taper bolt to axis, has pin butterfly valve to carry out two to axis Second experiments of sealing performance machine of secondary experiments of sealing performance and the driving head erecting bed of installation driving head；The butterfly valve assembly machine bag Including rack, the replaceable valve body positioning fixture of horizontal positioned valve body in left-right direction on the rack level table top, is used for Be embedded in the replaceable valve plate positioning fixture of valve plate to be installed, above valve body positioning fixture loaded in frame vertical frame body can Change valve seat positioning fixture, respectively positioned at the valve body positioning fixture left and right sides on the rack level table top court in the horizontal direction Lower valve neck axis hole is arranged on valve body to be measured the valve shaft oil cylinder top pressing device for being pressed into upper valve shaft or axis and be pressed under lower valve shaft Valve shaft electric wrench top pressing device, and the electric control box of control butterfly valve assembly manipulation, the valve body positioning fixture includes positioning Support valve body torus part and concentrically the cylinder shape valve positioning sleeve of line and be fixed in the valve body positioning sleeve bottom with it And bar shaped bottom plate extended to the left corresponding with upper valve neck position and length, arrange on the bar shaped bottom plate and there are many bullets Property pillar support upper valve neck flange flange bracing frame；The vertical valve plate pair of the valve plate positioning fixture and in left-right direction set During the cavity of the valve body positioning sleeve should be fixed on；The valve seat positioning fixture includes the cylinder with valve body positioning sleeve concentrically line Shape valve seat positioning sleeve, the piston rod of the wedge oil cylinder that the valve seat positioning sleeve top surface connection one presses downwards, valve seat positioning sleeve is left Right both sides are symmetrical arranged the band dop rocking arm that the clamping valve seat to be installed that can synchronously swing up and down is driven by elastic force, and clamped is to be installed Valve seat top surface is positioned at the valve seat positioning sleeve bottom edge；The wedge oil cylinder, last item oil cylinder are respectively by wedge electromagnetic valve and pressure Axle electromagnetic valve is connected to electric control box.

The light-operated position for stopping the belt conveyor operation is set in each belt conveyor along the end of conveying direction Sensor.

The flange bracing frame of the butterfly valve assembly machine includes upper lower flange gripper shoe and supports 3 elasticity therebetween to prop up Post, elastic support is that the spring by pillar and suit thereon is constituted, and the upper flange gripper shoe is set with the pillar and is supported on On the spring, flange positioning pillars are set in upper flange gripper shoe, flange bracing frame adapts to different upper valve neck adjustable lengths Solidating is scheduled on the diverse location of bar shaped bottom plate.

The valve plate positioning fixture of the butterfly valve assembly machine includes the vertical plate that an inserting is fixed in valve body positioning sleeve cavity Block, the vertical plate top is provided with the cambered surface groove for putting vertical valve plate, and the cambered surface groove both sides arrange baffle plate.

The symmetrically arranged band dop rocking arm in the valve seat positioning sleeve left and right sides of the valve seat positioning fixture of the butterfly valve assembly machine Its rear end is articulated and connected respectively with the trunnion axis two ends being fixed on the connected pedestal of the valve seat positioning sleeve rear side, its front end point The elastic chuck of valve seat to be installed Lian Jie not be clamped, and in left and right sides with the trunnion axis between dop rocking arm rear end and support points Tao Zhuan not the spacing torsion spring of rocking arm；Concave plane in dop positioning is respectively provided with the valve seat positioning sleeve bottom left and right sides, in valve Seat positioning sleeve bottom is along the ring week step surface for arranging positioning valve seat.

The elastic chuck includes the horizontally disposed circle of the horizontal set with body of rod dop, spring, screw and interior end opening Cylinder, the body of rod section with body of rod dop inserts the cylinder, the screw be screwed in cylinder from cylinder end plate outside and with band Body of rod dop is threadedly coupled, and the spring is placed on screw outside and is arranged between band body of rod dop and cylinder end plate.

The lower valve shaft electric wrench top pressing device of the butterfly valve assembly machine includes electric wrench, and the swing arm of the electric wrench leads to Cross a screw shell affixed with lower axle top pressure, the screw shell is arranged with lower valve neck coaxial line, its outside is set with and its spiral shell The nut guide pin bushing of stricture of vagina connection, electric wrench realizes the lower axle top pressure head along left and right to top pressure by the in rotary moving of screw shell Lower valve shaft and exit.

The valve shaft oil cylinder top pressing device of the butterfly valve assembly machine includes last item oil cylinder and the position connected by its piston rod end The axle push rod of valve shaft or axis, is arranged in axle push rod top pressure end in last item oil cylinder top and in the top pressure parallel with the piston rod The jack being coaxial therewith, it is fixed in the jack that axle pressure head is housed, and arrange on the outside of it along the axle push rod and be connected to the electricity Move back limit induction switch and right top limit induction switch in the adjustable left side in position of gas control chamber.

The seat board for placing pressure testing plate is set on the board of the butterfly valve assembly machine, and seat board is provided with and the pressure testing plate gas Channel connection and it is connected to the gas distribution passage of source of the gas.

Arrange on the butterfly valve assembly machine and control respectively the last item oil cylinder, wedge oil cylinder and lower valve shaft electric wrench top The last item foot switch of depressor, wedge foot switch and the two-way foot switch of lower axle, and outside the piston rod of the wedge oil cylinder Side setting is connected to the adjustable limit induction that pushes in position of the electric control box and switchs and push backhaul limit induction switch.

The valve plate closure levelling device employs Pneumatic butterfly valve valve plate horizontal closed pressue device, is provided with support, described Support includes top board, base plate and the two vertical support columns that are fixed between top board, base plate positioned at both sides that level is put, described Horizontal pressure foot is set between top board and base plate, and the pressing plate can be moved up and down by the guide hole that its both sides is arranged and be set in institute State on two vertical support columns；The cylinder of a vertical set is fixedly installed in ceiling center, cylinder piston rod is arranged through top board Piston rod via, its end is fixedly connected on pressing plate；Replaceable panel is set with centrage with the cylinder in pressing plate bottom, Two top pressure heads are symmetrical arranged centered on the centrage the panel bottom surface is corresponding with butterfly valve plate specification to be closed, in institute State on base plate and the spacing pad for placing butterfly valve for positioning be correspondingly arranged with the two top pressures head, the cylinder by pneumatic switch and Pressure regulator valve connects source of the gas.

The replaceable panel is the plate body that section is swallow-tail form, and by inserting what is opened up in pressing plate bottom correspondence Replaceable is installed on pressing plate bottom in dovetail groove.

The top pressure head be by Upper cylindrical connection end, middle part ring week flange and the one that constitutes of bottom round end bullet into Type part.

The spacing pad is a rubber cushion with diameter round boss corresponding with butterfly valve seat diameter of bore to be closed, institute State butterfly valve and be embedded in the endoporus of its valve seat by the round boss and be horizontally positioned on base plate.

The first experiments of sealing performance machine employs full-automatic butterfly valve seal performance aircraft, including by board and support The frame that stand on board is constituted, is provided for the pressure testing plate of horizontal positioned butterfly valve on board, in stand to The piston rod differential for being connected to compress butterfly valve relative with the pressure testing plate of lower pressure oil cylinder, arranges gas and leads on pressure testing plate Road, the inner port of the gas passage is arranged on the end face that pressure testing plate is connected with butterfly valve lower chamber, is additionally provided with electric control unit, The differential bottom is provided with the pressing plate with one or more observation circular holes, presses with corresponding the setting in pressing plate bottom surface of observation circular hole The replaceable annular gland of butterfly valve upper cavity is placed on, connection water source is set on the observation circular hole wall of the pressing plate on butterfly valve The inlet opening that cavity supplies water, the gland is arranged with the pressure testing plate with centrage, by the outer end of the gas passage of pressure testing plate Mouth connection has the source of the gas of setting pressure；The electric control unit using based on PLC control circuit, the oil cylinder, water source, Source of the gas connects the PLC by control device respectively.

In the piston rod side of the oil cylinder, the up limit induction switch of gland is set.

The inlet opening Jing waterpipes of each pressing plate are connected to water source by water pump；The gas passage passes through air gauge, gas Way solenoid valve is connected to source of the gas；The oil cylinder connects fuel tank, the electric control unit by oil gauge, oil cylinder electromagnetic valve, oil pump Control panel be provided with button groups, the water pump, air gauge, electromagnetic valve of gas circuit, oil pump, oil gauge, oil cylinder electromagnetic valve and press Button group is connected to the PLC, and PLC is also connected with the add water time relay, guarantor's air pressure time relay and the pressure time relay that loses heart.

The button groups are including manual/auto switching button, from dynamic test start button, Oil pump electrical machinery start button, oil Pump motor stop button, oil cylinder descending button, oil cylinder backhaul button, button with air pressure capable of being increased, unload air pressure button, adding water button and adds water Stop button.

It is provided for positioning the positioning gutta pad of butterfly valve on the pressure testing plate, the positioning gutta pad is one concentric with pressure testing plate Circular rubber cushion, its external diameter and butterfly valve seat internal diameter match and are provided with the air passing hole connected with pressure testing plate gas passage.

The invention has the beneficial effects as follows：The butterfly valve assembling line of offer, (1) instead of existing using butterfly valve assembly machine The independent assembly manipulation of manual, substep, eliminates contact transport, the time loss that frock clamp is changed and manpower and wastes.Make valve seat, Valve plate, valve shaft are assembled, are continuously finished with machine, and realize being accurately positioned, and particularly by press device and electric tool manpower is replaced, Both product quality, and improve production efficiency had been ensured, and have made operator depart from heavy physical work, saved labour turnover, eliminated Noise, improves working conditions and environment.

(2) by using Pneumatic butterfly valve valve plate horizontal closed pressue device, instead of in prior art by pneumatic actuator Armstrong's patent drive mechanism, during work, only need to open pneumatic switch, you can promote top pressure head to transport downwards by cylinder piston rod OK, top pressure valve plate is up to the standard closure state, using the pneumatic means it is reliable, reduce labor intensity of operating staff, save time The closed good and improve production efficiency of laborsaving, guarantee valve plate level.

(3) realize surveying sealing using source of the gas to valve body side cavity using full-automatic butterfly valve seal performance aircraft, and pass through Opposite side cavity adds water observation leakage, can also the multiple butterfly valves of clamping operate simultaneously, can accurately judge sealing and can once complete The experiments of sealing performance of one or more butterfly valves.The butterfly valve seal method for testing performance of offer has manual operation and full-automatic behaviour concurrently Make function, it is compared with the prior art, simple and easy to do, work efficiency is significantly improved, improve the standardization of operation.Compared with the prior art, Being additionally arranged positioning gutta pad makes tested butterfly valve accurate positioning, it is ensured that test mass, compared with existing employing tank leaks hunting gas technology also Water resource can be saved, improves working environment.

(4) between the operation of each facility, butterfly valve is assembled without manual delivery, automatically delivered by belt conveyor, it is convenient fast Victory, raises labour efficiency.

In sum, the butterfly valve assembling line that the present invention is provided, device structure function innovation, whole wire body device layout Succinctly, it is easy to operate, abate the noise and make operator to depart from heavy physical work, working condition and environment are improved, realize Automatic, the efficient, high-quality of butterfly valve Assembling Production process, suitably promotes in butterfly valve manufacturing.

Description of the drawings

Fig. 1 is the overall structure block diagram of butterfly valve assembling line；

Fig. 2 is bivalve axle butterfly valve main structure diagram；

Fig. 3 is the side view cutaway drawing (removing handle, arresting disc) of Fig. 2；

Fig. 4 is that axis has pin butterfly valve main structure diagram；

Fig. 5 is the right view of Fig. 4.

In figure：

I shaft sleeve installation machine, II label erecting bed, III butterfly valve assembly machine, IV spacing gland erecting bed, the closure leveling of V valve plate Device, VI arresting disc/handle/plug erecting bed, VII first experiments of sealing performance machines, VIII arresting disc/handle fixed station, Ⅸ circular cone Pin erecting bed, Ⅹ second experiments of sealing performance machines, Ⅺ driving head erecting bed, Ⅻ belt conveyor, the light-operated position sensors of X III；

P bivalve axle butterfly valves, P1 valve bodies, the spacing glands of P2, P3 back-up rings, P4 sealing rings, P5 axle sleeves, the upper valve shafts of P6, P7 valve seats, P8 valve plates, P9 lower valve shafts, P10 plugs；P11 labels, P12 rivets for rame plates, P13 arresting discs, P14 handles；

M axises have a pin butterfly valve, M1 manual heads, M2 valve bodies, M3 axle sleeves, M4 sealing rings, M5 valve seats, M6 taper bolts, M7 axises, M8 valve plates, M9 labels, M10 rivets for rame plates.

Fig. 1 a are the overall structure diagrams of butterfly valve assembly machine；

Fig. 1 b are the structural representations of valve body and valve plate positioning fixture in Fig. 1 a；

Fig. 1 c are the top views of Fig. 1 b；

Fig. 1 d are the left views of Fig. 1 b；

Fig. 1 e are the K-K sectional views in Fig. 1 c；

Fig. 1 f are the structural representations of valve seat positioning fixture in Fig. 1 a；

Fig. 1 g are the top views of Fig. 1 f；

Fig. 1 h are the left views of Fig. 1 f；

Fig. 1 i are the structural representations of lower valve shaft electric wrench top pressing device in Fig. 1 a；

Fig. 1 j are the control panel structural representations in Fig. 1 a；

Fig. 1 k are the electrical control block diagrams of butterfly valve assembly machine.

In figure：A wedge oil cylinders, B valve seat positioning fixtures, B1 elastic chucks, C lower valve shaft electric wrench top pressing devices, D valve bodies are determined Position fixture, D1 flange bracing frames, D2 elastic valve body positioning pillars, E valve plate positioning fixtures, F valve shaft oil cylinder top pressing devices, G frames, H Electric control box；

1a adapter sleeves, 2a screw 3a valve seat positioning sleeves, the spacing torsion spring of 4a rocking arms, 5a band dop rocking arms, 6a band body of rod cards Head, 7a springs, 8a screws, 9a cylinders, all step surfaces of 10a rings, concave plane in 11a dops positioning, 12a pedestals, 13a trunnion axis, 21a flange positioning pillars, 22a upper flange gripper shoes, 23a pillars, 24a springs, 25a lower flange gripper shoes, 26a bar shaped bottom plates, 27a packing rings, 28a soket head cap screws, 29a valve body positioning sleeves, the vertical plates of 30a, 31a cambered surface grooves, 32a baffle plates, 33a positioning Key, 34a valve body positioning pillars, 35a spring housing, 36a springs, 37a location holes；41a lower axle top pressure heads, 42a nut guide pin bushings, 43a Screw shell, 44a electric wrenches, 51a last item oil cylinders, 52a connection end plates, 53a fairleads, 54a axle push rods, 55a axles are pressed into limit Position inductive switch, 56a last items return limit induction switch, and 57a pushes limit induction switch, and 58a pushes backhaul limit induction and opens Close, 59a axle pressure heads, the horizontal stands of 61a, 62a vertical stand, 63a wedge electromagnetic valves, 64a last item electromagnetic valves, 70a automatic/hands turn Switch is changed, 71a last item foot switchs, 72a wedge foot switchs, the two-way foot switch of 73a lower axles, the manual wedges of 74a are switched, The manual wedge backhaul switches of 75a, the manual last item activate switches of 76a, the manual last item backhaul switches of 77a, 78a on and off switch, 79a is oily Switch pump, 80a horizontal carriages, the vertical balladeur trains of 81a.

Fig. 2 a are the main structure diagrams of Pneumatic butterfly valve valve plate horizontal closed pressue device；

Fig. 2 b are the left views (air inlet pipeline omission) of Fig. 2 a；

Fig. 2 c are the A-A views (air inlet pipeline omission) of Fig. 2 a；

Fig. 2 d are the application schematic diagrams of Pneumatic butterfly valve valve plate horizontal closed pressue device.

In figure：1b cylinders, 2b nuts, 3b packing rings, 4b top boards, 5b support columns, 6b pressing plates, 61b dovetail grooves, hexagonal cone in 7b End holding screw, 8b fairleads, 9b panels, 10b base plates, 11b legs, 12b piston rods, 13b locking nuts, 14b adapter sleeves, 15b top pressure heads, the spacing pads of 16b, 16b1 round boss, 17b-18b fillister head screws, 19b baffle plates, P butterfly valves, P8 valve plates, 21b enters Air pipe, 22b pneumatic switchs, 23b pressure regulator valves, 24b pressure gauges, 25b workbench.

Fig. 3 a are the main structure diagrams of full-automatic butterfly valve seal performance aircraft；

Fig. 3 b are the I enlarged drawings in Fig. 3 a；

Fig. 3 c are the top views of Fig. 3 a center platens；

Fig. 3 d are left single slide rail top views of Fig. 3 a；

Fig. 3 e are the middle double sided slider bar top views of Fig. 3 a；

Fig. 3 f are right single slide rail top views of Fig. 3 a；

Fig. 3 g are the structural representations of gland in Fig. 3 a；

Fig. 3 h are the overlooking the structure diagrams of limiting plate in Fig. 3 a；

Fig. 3 i are the structural representations of control panel in Fig. 3 a；

Fig. 3 j are the electrical control block diagrams of full-automatic butterfly valve seal performance aircraft；

Fig. 3 k are the automatic test method flow charts of full-automatic butterfly valve seal performance aircraft；

Fig. 3 l are the Manual test method flow diagrams of full-automatic butterfly valve seal performance aircraft.

In figure:

Pa-Pb butterfly valves, 1c oil cylinders, 11c piston rods, the up limit induction switch of 12c glands, 13c oil-pipings, 14c oil cylinders Electromagnetic valve, 15c oil pumps, 16c sources of the gas, 17c electromagnetic valve of gas circuit, 18c water sources, 19c water pumps, 2c electric control units, 20c chains of command Plate, 21c power knobs, 22c Oil pump electrical machinery start buttons, 23c Oil pump electrical machinery stop buttons, 24c oil cylinder backhaul buttons, 25c handss Dynamic/automatic conversion button, 26c adds water button, 27c buttons with air pressure capable of being increased, 28c oil cylinder descending buttons, and 29c starts from dynamic test and presses Button, 3c frames, 3c1 stands, 3s columns, 3c2 boards, 30c adds water stop button, and 31c unloads air pressure button, 32c scram buttons, 33c adds water the time relay, and 34c protects the air pressure time relay, and 35c loses heart the pressure time relay, 36c oil gauges, 37c air pressure Table, 38c fuel tanks, 4c differentials, 41c inlet openings, 42c pressing plates, 43c observation circular holes, 44c limiting plates, 45c waterpipes, 5c glands, Double sided slider bar in the middle of 50c, the right single slide rails of 51c, the left single slide rails of 52c, 53c chutes, 6c hollow screws, 7c positioning gutta pads, 8c pressure testing plates, 81c gas passages, 9c seat boards, 91c gas distribution passages.

Below in conjunction with accompanying drawing and example to the detailed description of the invention.

Specific embodiment

Fig. 1 illustrates a kind of butterfly valve assembling line, it is characterised in that include some facilities arranged along assembly process order And be arranged on per the belt conveyor Ⅻ between adjacent two facility, some facilities that the order is arranged are respectively the axle of mounting sleeve Set fitting machine I, installs the label erecting bed II of label, installs the butterfly valve assembly machine III of valve seat, valve plate and valve shaft, gives twin shaft butterfly valve The valve plate closure levelling device V of the spacing gland fixed station IV of the spacing gland of fixation, closure and leveling valve plate, installation arresting disc, Arresting disc/handle/plug the erecting bed VI of handle and plug, carries out the first experiments of sealing performance machine of valve seal performance test VII, fixed stop disk, the arresting disc/handle fixed station VIII of handle have the taper bolt that pin butterfly valve installs taper bolt to install to axis Platform Ⅸ, has pin butterfly valve to carry out the second experiments of sealing performance machine Ⅹ of secondary seal performance test and install the drive of driving head to axis Dynamic head erecting bed Ⅺ；The light for stopping the belt conveyor operation is set in each belt conveyor Ⅻ along the end of direction of transfer Control position sensor X III.Belt conveyor is mainly used in for the butterfly valve in assembling carrying out conveying transmission between each facility, due to Each belt conveyor end is provided with light-operated position sensor X III, when assembling butterfly valve is sent to this position, by light-operated position Sensors X III senses and sends signal, stops can belt conveyor operation by control device, so as to the assembling for preventing from transmitting Butterfly valve drops, and is supplied to each assembling, leakage test equipment or workbench.

Above-mentioned shaft sleeve installation machine I employs the first patent ZL200910174895.X " hydraulic pressure butterfly valve shaft sleeve of the applicant Hydraulic pressure butterfly valve shaft sleeve installation machine in fitting machine and its installation method ", and pacify into valve body axis hole according to installation method therein Dress axle sleeve.

" a kind of butterfly valve porous is long to be provided with first patent ZL201220642420.6 of the applicant in label erecting bed II The long label installation boring machine of butterfly valve porous of label installation boring machine ", the operation for completing is to valve body using the boring machine Upper dress label.

The operation that butterfly valve assembly machine III is completed is the assembling of valve shaft, valve plate, valve seat, for twin shaft butterfly valve fit on, lower valve Axle, for axis butterfly valve assembles axis.

The operation that spacing gland erecting bed IV is completed is will to complete the twin shaft butterfly valve that upper and lower valve shaft, valve plate, valve seat are installed Spacing gland is installed on upper valve shaft.

The operation that valve plate closure levelling device V is completed is by valve plate closure and leveling.

The operation that arresting disc/handle/plug erecting bed VI is completed is that arresting disc, handle are installed on butterfly method upper flange, Twin shaft butterfly FAXIA valve neck bottom is installed by plug.

First experiments of sealing performance machine VII employs full-automatic butterfly valve seal performance aircraft, and its operation for completing is test Butterfly valve seal performance.

The operation that arresting disc/handle fixed station VIII is completed be by complete experiments of sealing performance butterfly valve handle and arresting disc It is screwed.

The operation that taper bolt erecting bed Ⅸ is completed is bored on the plate body that the axis for completing experiments of sealing performance is had into pin butterfly valve Hole, fraising are fixed with taper bolt.

Second experiments of sealing performance machine Ⅹ employs conventional Water-sealed experiments of sealing performance machine, and its operation is to dress circle Axis after taper pin has pin butterfly valve to carry out secondary seal performance test.

The operation of driving head erecting bed Ⅺ is installed to completing driving head using the butterfly valve of driving head, and driving head includes manual Head, pneumatic head and electrical header.

The structure that Fig. 2-Fig. 5 is shown respectively the axis that the bivalve axle butterfly valve of handle drives and manual heads drive and has pin butterfly valve is shown It is intended to.As illustrated, the assembling of the bivalve axle butterfly valve of handle drives is mainly included in fit on valve shaft P6, valve seat on valve body P1 P7, valve plate P8, lower valve shaft P9, plug P10, spacing gland P2, back-up ring P3, sealing ring P4, axle sleeve P5, arresting disc P13 and handle P14.The structure that the axis that manual heads drive has pin butterfly valve M mainly includes valve body M2, valve seat M5, taper bolt M6, axis M7, valve plate M8, axle sleeve M3, sealing ring M4 and manual heads M1.It is the logical of one that the difference that axis has pin butterfly valve and bivalve axle butterfly valve is valve shaft Axle, need to be fixed with taper bolt.In addition bivalve axle butterfly valve, axis have the drive mechanism of pin butterfly valve and axis without pin butterfly valve to adopt Handle, it would however also be possible to employ driving head.

Fig. 1 a- Fig. 1 k illustrate a kind of butterfly valve assembly machine, and as shown in Figure 1a, the butterfly valve assembly machine III includes frame G, is located at The replaceable valve body positioning fixture D of horizontal positioned valve body P1 in left-right direction on rack level table top 61a, for being embedded in valve to be installed The replaceable valve plate positioning fixture E of plate P8, above valve body positioning fixture loaded on the replaceable in frame vertical frame body 62a Valve seat positioning fixture B, respectively positioned at the valve body positioning fixture D left and right sides on the rack level table top direction in the horizontal direction Lower valve neck axis hole is arranged on valve body to be measured the valve shaft oil cylinder top pressing device F for being pressed into valve shaft or axis and be pressed under lower valve shaft P9 Valve shaft electric wrench top pressing device C, and the electric control box H of control butterfly valve assembly manipulation.

As shown in Fig. 1 b- Fig. 1 e, the valve body positioning fixture D include positioning support valve body torus part and with its altogether in The cylinder shape valve positioning sleeve 29a of heart line, and be fixed in the valve body positioning sleeve bottom and it is corresponding with upper valve neck to the left extend set The bar shaped bottom plate 26a for putting, the flange that there are many elastic supports to support upper valve neck flange is arranged on the bar shaped bottom plate and is supported Frame D1, the flange bracing frame D1 include upper lower flange gripper shoe 22a, 25a and support 3 elastic supports therebetween, bullet Property pillar be to be made up of pillar 23a and suit spring 24a thereon, upper flange gripper shoe 22a is set with the pillar 23a simultaneously It is supported on the spring 24a, two flange positioning pillars 21a is set in upper flange gripper shoe.During assembling, upper flange is supported Between two flange positioning pillars 21a.Flange bracing frame D1 adapts to different upper valve neck adjustable in length and is fixed on bar shaped bottom plate On the diverse location of 26a.It is the different valve neck length for adapting to different size butterfly valve, on bar shaped bottom plate 26a in actual fabrication The multiple rows of flange bracing frame location hole of interval setting, is provided with 3 row flange bracing frame location hole 37a, flange bracing frame root in this example According to butterfly valve specification, from two bracing frame location holes of a wherein row, 2 pillar 23a are inserted respectively in location hole 37a, then are led to Cross securing member lower flange gripper shoe is fixed on bar shaped bottom plate 26a.Valve body positioning sleeve 29a is fixed on bar by positioning key 33a On shape base plate 26a.On valve body positioning sleeve 29a tops, to be uniformly arranged 3 elastic valve bodies fixed along corresponding with valve body torus internal diameter Position pillar D2.As shown in fig. le, elastic valve body positioning pillars D2 by loaded on the spring 36a in valve body positioning sleeve spring housing 35a and Valve body positioning pillars 34a of the top pressure on spring are constituted in embedded spring room.Using elastic valve body positioning pillars, when valve seat is pushed During assembling, because elastic force makes that contact force is soft slow will not to damage valve seat.

The valve plate positioning fixture E is corresponding with the vertical valve plate P8 of set in left-right direction to be fixed on the valve body positioning sleeve In the cavity of 29a.Valve plate positioning fixture E includes the vertical plate 30a that an inserting is fixed in the cavity of valve body positioning sleeve 29a, The vertical plate top is provided with the cambered surface groove 31a for putting vertical valve plate P8, and cambered surface groove both sides are respectively provided with baffle plate 32a. During assembling, valve plate P8 is vertically inserted in cambered surface groove 31a.

As shown in Fig. 1 f-1h, the replaceable valve seat positioning fixture B includes the circle with valve body positioning sleeve 29a concentrically lines Cylindricality valve seat positioning sleeve 3a, the work of the wedge oil cylinder A that the valve seat positioning sleeve top surface is pressed downwards by adapter sleeve 1a connections one Stopper rod, the valve seat positioning sleeve 3a left and right sides is symmetrical arranged the band that the clamping valve seat P7 to be installed that can synchronously swing up and down is driven by elastic force The top surface of dop Rocker arm 5 a, clamped valve seat P7 to be installed is positioned at the bottom edge of the valve seat positioning sleeve 3a.Above-mentioned valve seat positioning The symmetrically arranged band dop Rocker arm 5 a its rear end in the set left and right sides respectively be fixed on the valve seat positioning sleeve 3a rear sides and be connected axle A trunnion axis 13a two ends on frame 12a are articulated and connected, and its front end connects respectively the elastic chuck B1 for clamping valve seat to be installed, and Left and right sides with being set with the spacing torsion spring 4a of rocking arm on the trunnion axis between dop rocking arm rear end and support；It is fixed in the valve seat The position set 3a bottoms left and right sides is respectively provided with concave plane 11a in dop positioning, and on valve seat positioning sleeve bottom edge positioning valve seat is arranged Ring week step surface 10a.The wedge oil cylinder A is connected to electric control box H by wedge electromagnetic valve 63a.In the wedge oil cylinder The setting of piston rod outside is connected to the adjustable limit induction that pushes in position of the electric control box and switchs 57a and push the spacing sense of backhaul Inductive switch 58a.As shown in Figure 1a, push limit induction switch 57a and push backhaul limit induction switch 58a and be installed on fixation On vertical balladeur train 81a in vertical stand 62a, line slip adjustment can be entered.

As shown in Figure 1 f, the elastic chuck B1 includes horizontally disposed band body of rod dop 6a, spring 7a, screw 8a and interior The horizontal set cylinder 9a of end opening, the body of rod section with body of rod dop 6a inserts the cylinder, and the screw 8a is from cylinder End plate outside is screwed in cylinder and is threadedly coupled with band body of rod dop 6a, and the spring 7a is placed on screw outside and is arranged on the band body of rod Between dop and cylinder end plate.In working order, its dop difference of two band dop Rocker arm 5 a of the valve seat positioning sleeve 3a left and right sides In snapping in the axis hole up and down of valve seat P7, in idle state, two band dop Rocker arm 5 a in the presence of the spacing torsion spring 4a of rocking arm upwards Stir and be respectively clamped on the interior concave plane 11a of dop positioning.

As shown in figure 1i, the lower valve shaft electric wrench top pressing device C includes electric wrench 44a, the electric wrench 44a's Swing arm is affixed with lower axle top pressure head 41a by a screw shell 43a, and the screw shell 43a is arranged with lower valve neck coaxial line, its The nut guide pin bushing 42a that outside suit is threadedly coupled with it, electric wrench 44a realize institute by the in rotary moving of screw shell 43a State lower axle top pressure head along left and right to top pressure and exit.

As shown in Figure 1a, the valve shaft oil cylinder top pressing device F is included last item oil cylinder 51a and is connected by its piston rod end The axle push rod 54a of valve shaft positioned at last item oil cylinder top and in the top pressure parallel with the piston rod, in actual fabrication, last item oil cylinder The piston rod end of 51a is fixedly connected the axle push rod 54a of setting in parallel by connecting end plate 52a and horizontal guide pin bushing 53a, adopts This structure is used, the floor space of valve shaft oil cylinder top pressing device F can be reduced, make whole equipment more compact structure.The last item oil cylinder 51a is connected to electric control box H by last item electromagnetic valve 64a.Additionally, arrange that in axle push rod top pressure end jack is coaxial therewith, institute Jack is stated built with axle pressure head 59a, axle pressure head 59a terminations are provided with axle slot, and arrange on the outside of it along the axle push rod and be connected to The position adjustable shaft of the electric control box is pressed into limit induction switch 55a and last item returns limit induction switch 56a.Controlled with this The start and stop of last item oil cylinder processed, it is ensured that axle push rod 54a is by valve shaft P6 in the stroke band moving axis pressure head 59a top pressures of setting.Such as Fig. 1 a institutes Show, axle is pressed into limit induction switch 55a and last item is return limit induction switch 56a and is installed on and is fixed on horizontal stand 61a Horizontal carriage 80a on, can enter line slip adjustment.

For easy to operate, the present invention to be provided with that control respectively the last item oil cylinder 51a, wedge oil cylinder A and lower valve shaft electronic Last item foot switch 71a, the wedge foot switch 72a of spanner top pressing device and the two-way foot switch 73a of lower axle.Meanwhile, in control Single step hand switch, including manual wedge switch 74a are provided with the control panel of case, manual wedge backhaul switchs 75a, manually Last item activate switch 76a, manual last item backhaul switchs 77a, automatic/hand permutator 70a.

As shown in figure 1k, electric control box H of the invention employ it is conventional with PLC (programmable controller) for central The electric control circuit of processor, mainly by PLC and its wedge electromagnetic valve 63a of connection, last item electromagnetic valve 64a, pushes spacing Inductive switch 57a, pushes backhaul limit induction switch 58a, and axle is pressed into limit induction switch 55a, and last item is return limit induction and opened 56a, last item foot switch 71a, wedge foot switch 72a are closed, manual wedge switchs 74a, and manual wedge backhaul switchs 75a, handss Dynamic pressure shaft activate switch 76a, manual last item backhaul switchs 77a, time-delay relay etc. and constitutes.

The valve plate closure levelling device V employs Pneumatic butterfly valve valve plate horizontal closed pressue device, such as Fig. 2 a～Fig. 2 c Shown, the Pneumatic butterfly valve valve plate horizontal closed pressue device is characterised by being provided with support, and the support includes what level was put Top board 4b, base plate 10b and two vertical support column 5b being fixed between top board, base plate positioned at both sides.The present embodiment is one square Support, the two ends of support column 5b are provided with and take up top board, the shoulder of base plate and have threaded ends, and support column two ends are each passed through The hole that top board, base plate both sides open up, and connected by being sleeved on nut 2b, the packing ring 3b and top board of threaded ends, base plate and fixing Connect.In the bottom of base plate 10b, leg 11b is set.In the present embodiment, leg employs fillister head screw, and sleeping dress is fixed on base plate In the counterbore of corner.

Horizontal pressure foot 6b is set between the top board 4b and base plate 10b, and the pressing plate 6b is by leading that its both sides is arranged Hole can move up and down and be set on the two support columns 5b.Fairlead is provided with the guide hole that the pressing plate both sides are arranged 8b, fairlead is fixed on pressing plate by interior hexagonal tapered end holding screw 7b.Fairlead adopt copper fairlead, lubricating and wear-resisting, It is easy to pressing plate to slide up and down.

The cylinder 1b of a vertical set, the work that cylinder piston rod 12b is arranged through top board is fixedly installed in top board 4b central authorities Stopper rod via, its end is fixedly connected on pressing plate 6b.In actual fabrication, using adapter sleeve 14b with threaded hole, adapter sleeve 14b is fixed by screws on pressing plate.Piston rod 12b is fixed by the adapter sleeve 14b that is threadedly coupled with it and locking nut 13b It is connected on the pressing plate.

Replaceable panel 9b is set with centrage with the cylinder 1b in pressing plate 6b bottoms, it is described as shown in Fig. 2 a, Fig. 2 c Panel 9b is the plate body that section is swallow-tail form, and can in the dovetail groove 61b that pressing plate 6b bottoms correspondence is opened up by inserting Change and be installed on pressing plate bottom.Meanwhile, baffle plate 19b is set in the end of panel 9b, after panel 9b insertion dovetail groove 61b, by two Baffle plate is kept off respectively at panel two ends, and is fixed on pressing plate 6b by fillister head screw 18b.

It is corresponding with the specification of the valve plate P8 of butterfly valve P to be closed right centered on the centrage in the bottom surface of the panel 9b Claim to arrange two top pressure head 15b, in this example, top pressure head is by Upper cylindrical connection end, middle part ring week flange and bottom round end taper What body was constituted is integrally formed part.During installation, top pressure head 15b is inlaid in panel bottom surface and opens up with its upper linker by tight fit Installing hole in and middle part ring week flange be against panel bottom surface and be fixed on panel.With two top pressure on the base plate 10b Head 15b is correspondingly arranged the spacing pad 16b for placing butterfly valve for positioning, and spacing pad 16b is one with diameter and butterfly valve valve to be closed The rubber cushion of the corresponding round boss 16b1 of seat diameter of bore, in this example, spacing pad is a circular rubber cushion, and the butterfly valve is by described Round boss 16b1 is embedded in the endoporus of its valve seat and is horizontally positioned on base plate.Round boss can play positioning well and make With, work efficiency is also improved, the butterfly valve of correspondence different size answers the corresponding rubber cushion of preferred dimension, namely the round boss of rubber cushion Diameter match with the diameter dimension of the ring-shaped valve seats endoporus of butterfly valve.Cylinder 1b is connected by pneumatic switch 22b and pressure regulator valve 23b Source of the gas is connect, pressure gauge 24b is additionally provided with air inlet pipeline 21b.Because the butterfly valve of different size needs to provide different air pressure, on The effect for stating pressure regulator valve is just to provide corresponding pressure, prevents that air pressure is excessive to damage valve plate by pressure, and air pressure is too small not to have pressing effect. Above-mentioned pneumatic switch 22b, source of the gas is closed when switching knob is placed in centre position, is restPosed；Switching knob is placed in down When line position is put, the descending pressing valve plate of panel；When switching knob is placed in upward position, the up return initial position of panel, work knot Beam

The first experiments of sealing performance machine VII employs full-automatic butterfly valve seal performance aircraft, such as Fig. 3 a～Fig. 3 l institutes Show, the full-automatic butterfly valve seal performance aircraft, including the frame being made up of board 3c2 and the stand 3c1 being supported on board 3c, is provided for the pressure testing plate 8c of horizontal positioned butterfly valve on board 3c2, the downward pressure oil cylinder 1c's on stand 3c1 The piston rod 11c differential 4cs that be connected to compress butterfly valve relative with the pressure testing plate 8c, arranges gas passage, institute on pressure testing plate The inner port for stating gas passage is arranged on the end face that pressure testing plate 8c is connected with butterfly valve lower chamber, and electrical control is additionally provided with stand Unit 2c.The differential 4c bottoms are provided with the pressing plate 42c with one or more observations circular hole 43c, in the present embodiment, the pressing plate The observation circular hole of left and right two is provided with, is pressed in twin shaft butterfly with left and right observation corresponding being respectively provided with pressing plate 42c bottom surfaces of circular hole Replaceable of valve Pa, Pb upper cavity or so annular gland 5c, on the left and right observation circular hole wall of the pressing plate 42c connection is arranged The inlet opening 41c that water source supplies water respectively to twin shaft butterfly valve Pa, Pb upper cavity, the gland sets with the pressure testing plate with centrage Put, left and right gland is installed by the chute 53c replaceables chimeric with the slide rail being correspondingly arranged on pressing plate bottom surface that its both sides opens up In pressing plate bottom.As shown in Fig. 3 a- Fig. 3 b, Fig. 3 d- Fig. 3 g, by left and right list slide rail 52c, 51c and shared middle double sided slider bar 50c inserts respectively the chute 53c of left and right gland both sides, and two gland replaceables are arranged on into pressing plate bottom.Using disconnectable Gland, the butterfly valve for being easy to correspondence different size is changed.Additionally, the stable vertically fortune of the piston rod 11c to ensure oil cylinder 1c It is dynamic, in the limiting plate 44c with semicircle bayonet socket that the differential 4c left and right sides is connected as illustrated in figure 3h, by the limiting plate of left and right two half Circle bayonet socket block prevents piston rod from swinging on the column 3s of stand both sides.The inner port difference of left and right gas passage 81c It is arranged on the end face that pressure testing plate 8c is connected with twin shaft butterfly valve Pa, Pb lower chamber, by the outer end of the gas passage of each pressure testing plate Respectively connection has the source of the gas 16c for setting pressure to mouth.The electric control unit 2c is described using the control circuit based on PLC Oil cylinder 1c, water source 18c, source of the gas 16c connect the PLC by control device respectively.To make butterfly valve accurate positioning, in the pressure testing It is provided for positioning the positioning gutta pad 7c of butterfly valve on plate 8c, the positioning gutta pad 7c is a circular glue concentric with pressure testing plate 8c Pad, its external diameter matches and is provided with the air passing hole connected with pressure testing plate gas passage with butterfly valve seat internal diameter.

The seat board 9c for placing pressure testing plate 8c is set on the board 3c2, and seat board 9c is provided with the gas with the pressure testing plate The gas distribution passage 91c for being connected to source of the gas 16c of the external port connection of passage 81c.

As shown in Figure 3 a-3b, in the present embodiment, positioning gutta pad 7c inserts pressure testing plate by the hollow screw 6c in centre It is fixed on pressure testing plate in the gas passage 81c in central authorities, pressure testing plate 8c is further through circular convex at the external port of gas passage 81c Platform is fixed on base 9c, and gas passage 81c external ports are connected with the gas distribution passage 91c of base 9c, make the gas from source of the gas Body is entered in the lower chamber of twin shaft butterfly valve Pa, Pb.

The up limit induction of gland is set in the piston rod 11c sides of the oil cylinder 1c and switchs 12c.The inlet opening of each pressing plate 41c Jing waterpipes 45c are connected to water source 18c by water pump 19c；The gas passage 81c passes through air gauge 37c, electromagnetic valve of gas circuit 17c is connected to source of the gas 16c；The oil cylinder 1c connects fuel tank 38c by oil gauge 36c, oil cylinder electromagnetic valve 14c, oil pump 15c, described The control panel 20c of electric control unit 2c is provided with button groups, the water pump 19c, air gauge 37c, electromagnetic valve of gas circuit 17c, Oil pump 15c, oil gauge 36c, oil cylinder electromagnetic valve 14c and button groups are connected to the PLC, and PLC is also connected with the time relay that adds water 33c, guarantor air pressure time relay 34c and the pressure time relay 35c that loses heart.Above-mentioned air gauge, oil gauge employ electronics and connect Point pressure table, can be with preset pressure, the pressure value of oil pressure, and to PLC output control signals, so that PLC is carried out according to pressure value Operational control.

Above-mentioned button groups include manual/auto switching button 25c, start from dynamic test start button 29c, Oil pump electrical machinery and press Button 22c, Oil pump electrical machinery stop button 23c, oil cylinder descending button 28c, oil cylinder backhaul button 24c, button 27c with air pressure capable of being increased, unload gas Press button 31c, add water the button 26c and stop button 30c that adds water.

The butterfly valve assembled on the butterfly valve assembling line that the present invention is provided, is divided into twin shaft butterfly valve and axis butterfly valve, axis Butterfly valve is divided into axis again has pin butterfly valve and axis without pin butterfly valve.It is various that drive mechanism is divided into handle drives or driving head driving etc. again Structure, in assembling process, should select the different operations of application according to the concrete structure of product.Concrete assembling process is as follows：

1. mounting sleeve

With above-mentioned hydraulic pressure butterfly valve shaft sleeve installation machine to mounting sleeve in valve body axis hole；To twin shaft butterfly valve P installation axles in this example Set P5；There are pin butterfly valve M mounting sleeves M3 to axis.

2. label is installed

With the long label installation boring machine of above-mentioned butterfly valve porous, on valve body label is filled；Twin shaft butterfly valve P is installed in this example Label P11, has pin butterfly valve M to install label M9 to axis.

3. valve seat, valve plate, valve shaft are assembled on valve body using above-mentioned butterfly valve assembly machine III；

The valve body, valve seat and the valve plate that install axle sleeve and label are transported at butterfly valve assembly machine with belt conveyor, are carried out Assembling.Twin shaft butterfly valve P installs valve shaft P6, lower valve shaft P9, valve plate P8, valve seat P7 (Fig. 1 a), and upper valve shaft and is pre-installed axle gear Circle P3 and spacing gland P2；Axis has pin butterfly valve M to install valve seat M5, valve plate M8, axis M7.

Concrete assembling process and principle are as follows：

1. before assembly, the valve body positioning fixture D and peace of corresponding specification should be selected first according to butterfly valve specification to be assembled Dress valve plate positioning fixture E thereon, and valve seat positioning fixture B.Therefore valve body positioning fixture D, valve plate locating clip in the design Tool E and valve seat positioning fixture B is disconnectable；

2. by pistons of the valve seat positioning fixture B loaded on wedge oil cylinder A, and central alignment is carried out；

3. valve body positioning fixture D is placed on the horizontal stand 61a of frame G, meanwhile, with left side last item oil cylinder 51a and The electric wrench 44a centrages on right side are aligned；

4. according to valve body upper valve neck length, flange bracing frame D1 is adjusted to into tram, and is screwed；

5. flange positioning pillars 21a of respective diameters are selected according to valve body upper flange diameter；

6. corresponding axle pressure head 59a is selected according to upper valve shaft specification, in axle pressure head insertion axle push rod 54a and screw will be used It is fixed；

7. valve body P1 is lain in a horizontal plane on valve body positioning fixture D, now, valve body torus part passes through 3 feather valves Body positioning pillars D2 are positioned, and valve body upper flange is supported between two flange positioning pillars 21a；

8. valve seat P7 inner faces are coated into silicone oil, with the elastic chuck B1 with dop Rocker arm 5 valve seat positioning sleeve 3a is fixed on Bottom, and positioned by sleeping being mounted on ring week step surface 10a；

9. valve plate P8 sections are coated into silicone oil to stand in the cambered surface groove 31a for being put into valve plate positioning fixture E, valve plate is made as far as possible Axis hole be horizontal；

10. assembling process：

First, on and off switch 78a is pressed, power supply is connected.Press pump switch 79a and oil pressure is provided.

A) pressure valve seat, starts wedge oil cylinder A, and operator tramples wedge foot switch 72a, and by PLC wedge electromagnetic valve is controlled 63a is connected, and wedge oil cylinder is descending, and valve seat P7 is pressed into into valve body P1, upon reaching this limit, pushes limit induction switch 57a Provide induced signal to feed back in PLC control circuits, it is out of service by PLC control wedge oil cylinder A；

B) lower valve shaft is pressed into, tramples the two-way foot switch 73a front ends of right side lower axle, start the electric wrench of press-in lower valve shaft 44a, lower valve shaft P9 is headed in valve plate lower shaft hole, reach nose end top it is motionless when, foot unclamps the two-way foot switch of lower axle；

C) it is pressed into valve shaft and auto-returned resets, silicone oil insertion valve body upper shaft hole is spread in upper valve shaft P6 round ends one end, In the axle slot of the axle pressure head 59a of square toes one end insertion axle push rod 54a, last item foot switch 71a is trampled, PLC is by last item electricity Magnet valve 64a control last item oil cylinder 51a drive shaft push rod 54a head into upper valve shaft P6 in valve plate upper shaft hole, reach defined position, axle It is pressed into limit induction switch 55a and sends induced signal, feed back to PLC, PLC controls last item oil cylinder 51a by last item electromagnetic valve 64a Out of service, now, under time-delay relay control after time delay 2 seconds, PLC controls wedge oil cylinder A and moves back by wedge electromagnetic valve 63a Return up, upon reaching this limit, push backhaul limit induction switch 58a and provide induced signal and feed back to PLC control circuits In, it is out of service by PLC control wedge oil cylinder A, meanwhile, PLC control last item oil cylinder 51a return, and during to defined position, last item is moved back Return limit induction switch 56a and send induced signal, feed back to PLC, PLC control last item oil cylinder 51a are out of service, reach reset.

D) electric wrench resets, and tramples the two-way foot switch 73a rear ends of lower axle, and electric wrench is exited to initial position, foot Unclamp, electric wrench is out of service, end-of-job.

When manual single -step operation is carried out：

Manually actuated manual wedge switchs 74a, and PLC is descending by wedge electromagnetic valve 63a control wedge oil cylinder A, by valve seat P7 be pressed into valve body P1, upon reaching this limit, push limit induction switch 57a be given induced signal feed back to PLC control electricity Lu Zhong, it is out of service by PLC control wedge oil cylinder A；

Manually actuated manual wedge backhaul switchs 75a, and PLC controls the up return of wedge oil cylinder by wedge electromagnetic valve 63a, Upon reaching this limit, push backhaul limit induction switch 58a to provide induced signal and feed back in PLC control circuits, by PLC Wedge oil cylinder A is out of service for control；

Manually actuated manual last item activate switch 76a, PLC controls last item oil cylinder, drive shaft top by last item electromagnetic valve 64a Bar 54a heads into upper valve shaft in valve plate upper shaft hole, reaches defined position, and axle is pressed into limit induction switch 55a and sends induced signal, PLC is fed back to, PLC control last item oil cylinders are out of service.

Manually actuated manual last item backhaul switchs 77a, and PLC controls last item cylinder piston rod and moves back by last item electromagnetic valve 64a Return, during to defined position, last item returns limit induction switch 56a and sends induced signal, feed back to PLC, PLC control last item oil cylinders 51a is out of service.

Above-mentioned assembly manipulation be assembling with upper lower valve shaft twin shaft butterfly valve. when install shaft type butterfly valve when, only with it is above-mentioned Step b), c) difference, using operations described below：

B1 the front end of the two-way foot switch 73a of lower axle) is ridden, is started electric wrench 44a and is pushed up to the lower valve neck end face of valve body When motionless, foot unclamps the two-way foot switch of lower axle；

C1 bearing and auto-returned) are pressed into, valve shaft blunt end are spread in silicone oil insertion valve body axis hole, the insertion of square toes one end In the axle slot of the axle pressure head 59a of axle push rod 54a, last item foot switch 71a is trampled, PLC is by last item electromagnetic valve 64a control pressures Shafting oil cylinder 51a drive shaft push rod 54a head into bearing M7 in valve plate axis hole, reach defined position, and axle is pressed into limit induction switch 55a sends induced signal, feeds back to PLC, and PLC is out of service by last item electromagnetic valve 64a control last item oil cylinder 51a, now, After the lower time delay of time-delay relay control 2 seconds, PLC controls wedge oil cylinder A and returns up by wedge electromagnetic valve 63a, limits when reaching Positioning is when putting, and pushes backhaul limit induction switch 58a and provides induced signal and feeds back in PLC control circuits, and by PLC wedge is controlled Oil cylinder A is out of service, meanwhile, PLC control last item oil cylinder 51a return, and during to defined position, last item returns limit induction switch 56a sends induced signal, feeds back to PLC, and PLC control last item oil cylinder 51a are out of service, reach reset.

4. twin shaft butterfly valve fixes spacing gland

In spacing gland fixed station IV, to twin shaft butterfly valve, with two screws spacing gland P2 is fixed；

5. close and leveling valve plate

Valve plate closure and leveling, as shown in Figure 2 d, this dress are carried out with above-mentioned Pneumatic butterfly valve valve plate horizontal closed pressue device It is placed on workbench 25b.During operation, operator are first embedded in butterfly valve P into it with the round boss 16b1 of spacing pad 16b It is horizontally positioned in the endoporus of ring-shaped valve seats on base plate 10b.The pressure indicator of observation pressure gauge 24b, will by pressure regulator valve 23b Air pressure adjustment is to appropriate value.Pneumatic switch 22b is opened, switching knob downstream position is placed in into, under the piston rod 12b of cylinder 1b Go and promote pressing plate 6b to move downward, head 15b is descending therewith for top pressure, first, wherein oblique on top pressure head 15b contact valve plate P8 Side is pushed, until two top pressure head 15b are pressed on valve plate simultaneously, valve plate is pressed, and makes valve plate P8 become horizontal closed shape State, so far, by switching knob upward position, the up return initial position of panel, end-of-job is placed in.

6. arresting disc, handle and plug are installed

Following operation is completed in arresting disc/handle/plug erecting bed VI：The twin shaft butterfly valve of handle drives installs arresting disc P13, handle P14 and the plug P10 for lower shaft hole；Plug is only installed using the twin shaft butterfly valve of driving head；Handle drives it is logical Axle butterfly valve installs arresting disc, handle；

7. experiments of sealing performance

The experiments of sealing performance of valve is carried out with full-automatic butterfly valve seal performance aircraft, this device can simultaneously test one Or multiple butterfly valves, below by while the step of illustrating the device leakage test as a example by test 2 twin shafts butterfly valve Pa, Pb and principle：

Select the gland that match with butterfly valve to be measured and positioning gutta pad before test, and gland is installed on pressing plate respectively, general Positioning gutta pad is placed on pressure testing plate center.By the time relay 33c that adds water set valve body upper cavity add water time t1 as 5s；By protecting the air pressure time relay 34c valve body lower chamber guarantor air pressure time t2 is set as 60s；By the pressure time relay that loses heart Device 35c sets valve body lower chamber and loses heart pressure time t3 as 5s；It is 5MPa to arrange cylinder oil setting value P1c by oil gauge 36c； It is 0.6MPa to arrange valve body lower chamber air pressure setting value P2c by air gauge 37c.

7.1 from dynamic test

(1) switch on power by power knob 21c, start oil pump 15c by Oil pump electrical machinery start button 22c, by two twin shaft to be measured Butterfly valve Pa, Pb are placed in left and right pressure testing plate 8c centers by positioning gutta pad 7c respectively.

(2) press from dynamic test start button 29c, start from dynamic test, by PLC controls, oil cylinder electromagnetic valve 14c is connected, oil cylinder 1c is descending, and left and right gland 5c is descending for drive, and two glands push respectively two butterfly valves, and now oil pressure continuation increasing rises to oil pressure map Value P1c is 5MPa, and PLC receives the input signal of oil gauge 36c, makes gland pressurize compress butterfly valve；Step is entered under PLC controls ⑶；

(3) valve body upper cavity adds water startup, and the time relay 33c timing that adds water starts, and therebetween, water pump 19c starts, by water The water of source 18c is transported to valve body upper cavity by waterpipe 45c, the inlet opening 41c of pressing plate, gland 5c, and timing is to the time of adding water T3 terminates for 5s, and PLC receives the input signal of the time relay 33c that adds water, and control water pump stops, and add water stopping, and enters step Suddenly (4)；

(4) valve body lower chamber startup with air pressure capable of being increased, electromagnetic valve of gas circuit 17c is connected, and air pressure rises to air pressure setting value P2c and is 0.6MPa, PLC receive the input signal of air gauge 37c, and the pressurize timing of air pressure time relay 34c is protected in stopping with air pressure capable of being increased Start to dwell time t2 to terminate for 60s, PLC receives the input signal for protecting air pressure time relay 34c, pressurize stops, and Into step (5)；

(5) valve body lower chamber loses heart in pressing and starts, under PLC controls, electromagnetic valve of gas circuit 17c conversions, and pressure of the losing heart time relay 35c timing starts to disappointing pressure time t3 to terminate for 5s, and PLC receives the input signal of the pressure time relay 35c that loses heart, control Electromagnetic valve of gas circuit 17c is closed, and pressure of losing heart stops；

(6) oil cylinder return, under the control of PLC, oil cylinder electromagnetic valve 14c conversions, oil cylinder is up, and gland rises to restriction position Put, the up limit induction switch 12c of gland sends induced signal and is sent to PLC, the up stopping of oil cylinder；

(7) Oil pump electrical machinery stop button 23c shut-off oil pumps are pressed, by power knob 21c, power supply is closed.

Above-mentioned steps (4) in, whether produce bubble in the water that valve body upper cavity is observed by the observation circular hole 43c of pressing plate, If bubble is produced, butterfly valve seal performance is unqualified, if bubble-free is produced, butterfly valve seal performance is qualified.So far, lower chamber Leakage test terminates, and butterfly valve is overturn, then carries out upper cavity leakage test.

7.2. Manual test

(1) switch on power by power knob 21c, start oil pump 15c by Oil pump electrical machinery start button 22c, by twin shaft butterfly to be measured Valve Pa, Pb are placed in left and right pressure testing plate 8c centers by positioning gutta pad 7c respectively.

(2) oil cylinder descending button is pressed, and by PLC controls, oil cylinder electromagnetic valve 14c is connected, and oil cylinder 1c is descending, left and right gland difference Twin shaft butterfly valve Pa, Pb are pushed, it is 5MPa that oil pressure rises to oil pressure map value P1c, PLC receives the input signal of oil gauge 36c, makes Gland pressurize compresses butterfly valve；

(3) the button 26c that adds water is pressed, and by PLC controls, valve body upper cavity adds water startup, and the time relay 33c timing that adds water is opened Begin, therebetween, water pump 19c starts, and the water of water source 18c is transported to into valve by waterpipe 45c, the inlet opening 41c of pressing plate, gland 5c Body upper cavity, timing to the time t3 that adds water is 5s, and by the stop button 30c that adds water, water pump stops, and add water stopping；

(4) button 27c with air pressure capable of being increased is pressed, under PLC controls, the startup with air pressure capable of being increased of valve body lower chamber, equipment carrying out practically is with above-mentioned The step of " 7.1 from dynamic test (4) "；In this step, whether produce in the water that valve body upper cavity is observed by the observation circular hole of pressing plate Anger bubble, if bubble is produced, butterfly valve seal performance is unqualified, if bubble-free is produced, butterfly valve seal performance is qualified.

(5) press and unload air pressure button 31c, under PLC controls, valve body lower chamber loses heart in pressing and starts, and equipment carrying out practically is with above-mentioned The step of " 7.1 from dynamic test (5) "；

(6) oil cylinder backhaul button 24c is pressed, under PLC controls, oil cylinder is up, equipment carrying out practically is with above-mentioned " 7.1 examinations automatically The step of testing " is (6)；

(7) Oil pump electrical machinery stop button 23c shut-off oil pumps are pressed, by power knob 21c, power supply is closed.So far, lower chamber is close Testing sealing terminates, and butterfly valve is overturn, then carries out upper cavity leakage test.

8. fixed handle and arresting disc

In arresting disc/handle fixed station VIII, the handle drives butterfly valve qualified to sealing property adjusts on handle and arresting disc It is fixed after good position.

9. taper bolt is installed

In taper bolt erecting bed Ⅸ, have on the valve plate M8 of pin butterfly valve M with the bench drill axis qualified to sealing property and bore, cut with scissors circle Taper bolt M6 is installed after taper pin-hole；

10. secondary seal performance test

There is pin butterfly valve M to carry out secondary seal performance examination with Ⅹ pair of axis for installing taper bolt of the second experiments of sealing performance machine Test, in case pin-and-hole has gap to cause leak.

11. install driving head

In driving head erecting bed Ⅺ, driving head is installed to the butterfly valve using driving head, including：It is manual heads, electrical header, pneumatic Head, and debugged.In this example, there is pin butterfly valve M that manual heads M1 are installed to axis.

12. level, put in storage

Butterfly valve to assembling is leveled, is wiped warehouse-in.So far, the whole assembling process of butterfly valve terminates.

The above, is only the preferred embodiments of the present invention, and not the planform and material of the present invention are appointed What pro forma restriction, any simple modification, equivalent change that every technical spirit according to the present invention is made to above example Change and modification, still fall within the range of technical solution of the present invention.

Claims (19)

1. a kind of butterfly valve assembling line, it is characterised in that include some facilities arranged along assembly process order and be arranged on every Belt conveyor between adjacent two facility, some facilities that the order is arranged are respectively the shaft sleeve installation machine of mounting sleeve, peace The label erecting bed of dress label, installs the butterfly valve assembly machine of valve seat, valve plate and valve shaft, and to twin shaft butterfly valve the limit of spacing gland is fixed The valve plate closure levelling device of position gland fixed station, closure and leveling valve plate, install arresting disc, handle and plug arresting disc/ Handle/plug erecting bed, carries out the first experiments of sealing performance machine of valve seal performance test, fixed stop disk, handle only Moving plate/handle fixed station, has pin butterfly valve to install the taper bolt erecting bed of taper bolt to axis, has pin butterfly valve to carry out to axis secondary Second experiments of sealing performance machine of experiments of sealing performance and the driving head erecting bed of installation driving head；The butterfly valve assembly machine includes Frame, the replaceable valve body positioning fixture of horizontal positioned valve body in left-right direction on the rack level table top, for embedding Fill the replaceable valve plate positioning fixture of valve plate to be installed, above valve body positioning fixture loaded on removable in frame vertical frame body Change valve seat positioning fixture, respectively positioned at the valve body positioning fixture left and right sides on the rack level table top direction in the horizontal direction What lower valve neck axis hole was arranged on valve body to be measured is pressed into the valve shaft oil cylinder top pressing device and the lower valve for being pressed into lower valve shaft of valve shaft or axis Axle electric wrench top pressing device, and the electric control box of control butterfly valve assembly manipulation, the valve shaft oil cylinder top pressing device includes last item Oil cylinder and by the last item oil cylinder piston boom end connect positioned at last item oil cylinder top and the top pressure parallel with the piston rod The axle push rod of upper valve shaft or axis；The valve body positioning fixture includes that positioning supports valve body torus part and justifies with the valve body The cylinder shape valve positioning sleeve of ring part concentrically line, be fixed in the valve body positioning sleeve bottom and with upper valve neck position and length Degree correspondence bar shaped bottom plate extended to the left, arranges on the bar shaped bottom plate and there are many elastic supports to support upper valve neck method Blue flange bracing frame；The valve plate positioning fixture is corresponding with the vertical valve plate of set in left-right direction to be fixed on the valve body and determines In the cavity of position set；The valve seat positioning fixture includes the cylindrical valve seat positioning sleeve with valve body positioning sleeve concentrically line, described The piston rod of the wedge oil cylinder that valve seat positioning sleeve top surface connection one presses downwards, the valve seat positioning sleeve left and right sides is symmetrical arranged by bullet Power drives the band dop rocking arm of the clamping valve seat to be installed that can synchronously swing up and down, and clamped valve seat top surface to be installed is positioned at described Valve seat positioning sleeve bottom edge；The wedge oil cylinder is connected to electric control box by wedge electromagnetic valve；The last item oil cylinder passes through last item Electromagnetic valve is connected to electric control box.

2. butterfly valve assembling line according to claim 1, it is characterised in that in each belt conveyor along conveying direction End the light-operated position sensor for stopping belt conveyor operation is set.

3. butterfly valve assembling line according to claim 1, it is characterised in that the flange bracing frame of the butterfly valve assembly machine Including upper lower flange gripper shoe and support 3 elastic supports therebetween, elastic support is the bullet by pillar and suit thereon Spring is constituted, and the upper flange gripper shoe is set with the pillar and is supported on the spring, and in upper flange gripper shoe method is arranged Blue positioning pillars, flange bracing frame adapts to different upper valve neck adjustable in length and is fixed on the diverse location of bar shaped bottom plate.

4. butterfly valve assembling line according to claim 1, it is characterised in that the valve plate locating clip of the butterfly valve assembly machine Tool includes the vertical plate that an inserting is fixed in valve body positioning sleeve cavity, and the vertical plate top is provided with puts vertical valve plate Cambered surface groove, the cambered surface groove both sides arrange baffle plate.

5. butterfly valve assembling line according to claim 1, it is characterised in that the valve seat locating clip of the butterfly valve assembly machine The valve seat positioning sleeve left and right sides of tool is symmetrical arranged band dop rocking arm, described band dop rocking arm its rear end respectively be fixed on it is described The trunnion axis two ends that valve seat positioning sleeve rear side is connected on pedestal are articulated and connected, its front end connects respectively the bullet for clamping valve seat to be installed Property dop, and in left and right sides with being set with the spacing torsion spring of rocking arm on the trunnion axis between dop rocking arm rear end and support； The valve seat positioning sleeve bottom left and right sides is respectively provided with concave plane in dop positioning, at valve seat positioning sleeve bottom along setting normal valve The ring week step surface of seat.

6. butterfly valve assembling line according to claim 5, it is characterised in that the elastic chuck includes horizontally disposed Horizontal set cylinder with body of rod dop, spring, screw and interior end opening, the body of rod section with body of rod dop inserts the circle Cylinder, the screw is screwed in cylinder and is threadedly coupled with band body of rod dop from cylinder end plate outside, and the spring is placed on outside screw Side is arranged between band body of rod dop and cylinder end plate.

7. butterfly valve assembling line according to claim 1, it is characterised in that the lower valve shaft of the butterfly valve assembly machine is electronic Spanner top pressing device includes electric wrench, and the swing arm of the electric wrench is affixed with lower axle top pressure by a screw shell, described Screw shell is arranged with lower valve neck coaxial line, and the nut guide pin bushing that its outside suit is threadedly coupled with it, electric wrench passes through screw thread The in rotary moving of sleeve is realized lower axle top pressure head edge left and right to top pressure lower valve shaft and is exited.

8. butterfly valve assembling line according to claim 1, it is characterised in that arrange in the axle push rod top pressure end with Its coaxial jack, it is fixed in the jack that axle pressure head is housed, and arranges on the outside of it along the axle push rod be connected to it is described electric Move back limit induction switch and right top limit induction switch in the adjustable left side in position of control chamber.

9. butterfly valve assembling line according to claim 1, it is characterised in that set on the board of the butterfly valve assembly machine The seat board of placement location pressure testing plate, seat board is provided with the gas distribution passage that source of the gas is connected and be connected to the pressure testing plate gas passage.

10. butterfly valve assembling line according to claim 1, it is characterised in that difference is set on the butterfly valve assembly machine Control the last item oil cylinder, the last item foot switch of wedge oil cylinder and lower valve shaft electric wrench top pressing device, wedge foot switch and The two-way foot switch of lower axle, and on the outside of the piston rod of the wedge oil cylinder arrange be connected to the electric control box position it is adjustable Push limit induction switch and push backhaul limit induction switch.

11. butterfly valve assembling lines according to claim 1, it is characterised in that the valve plate closure levelling device is employed Pneumatic butterfly valve valve plate horizontal closed pressue device, is provided with support, and the support includes the top board that level puts, base plate and positioned at two The two vertical support columns that side is fixed between top board, base plate, arrange horizontal pressure foot, the pressing plate between the top board and base plate The guide hole arranged by its both sides can be moved up and down and is set on described two vertical support columns；It is fixedly installed in ceiling center The cylinder of one vertical set, the piston rod via that cylinder piston rod is arranged through top board, its end is fixedly connected on pressing plate； Pressing plate bottom arranges replaceable panel with the cylinder with centrage, in the panel bottom surface and butterfly valve plate specification pair to be closed Two top pressure heads should be symmetrical arranged centered on the centrage of the cylinder, be correspondingly arranged with the two top pressures head on the base plate For the spacing pad that positioning places butterfly valve, the cylinder connects source of the gas by pneumatic switch and pressure regulator valve.

12. butterfly valve assembling lines according to claim 11, it is characterised in that it is swallow that the replaceable panel is section The plate body of tail shape, and it is installed on pressing plate bottom by inserting the replaceable in the dovetail groove that pressing plate bottom correspondence is opened up.

13. butterfly valve assembling lines according to claim 12, it is characterised in that the top pressure head is connected by Upper cylindrical Connect end, middle part ring week flange and bottom round end bullet composition is integrally formed part.

The 14. butterfly valve assembling lines according to claim 11,12 or 13, it is characterised in that the spacing pad has for one The rubber cushion of diameter round boss corresponding with butterfly valve seat diameter of bore to be closed, the butterfly valve is embedded in by the round boss It is horizontally positioned on base plate in the endoporus for entering its valve seat.

15. butterfly valve assembling lines according to claim 1, it is characterised in that the first experiments of sealing performance machine is adopted Full-automatic butterfly valve seal performance aircraft, including the frame being made up of board and the stand being supported on board, on board The pressure testing plate of horizontal positioned butterfly valve is provided for, the piston rod of the downward pressure oil cylinder in stand is relative with the pressure testing plate It is connected to compress the differential of butterfly valve, gas passage is set on pressure testing plate, the inner port of the gas passage is arranged on pressure testing The end face that plate is connected with butterfly valve lower chamber, is additionally provided with electric control unit, and the differential bottom is provided with one or more observations The pressing plate of circular hole, it is corresponding with the observation circular hole that the replaceable annular pressure pressed in butterfly valve upper cavity is set in pressing plate bottom surface Set, arranges the inlet opening that connection water source supplies water to butterfly valve upper cavity, the gland and institute on the observation circular hole wall of the pressing plate State pressure testing plate to arrange with centrage, there is the source of the gas of setting pressure by the external port connection of the gas passage of pressure testing plate；It is described Using the control circuit based on PLC, the downward pressure oil cylinder, water source, source of the gas pass through respectively control device to electric control unit Connect the PLC.

16. butterfly valve assembling lines according to claim 15, it is characterised in that in the piston of the downward pressure oil cylinder Bar side arranges the up limit induction switch of gland.

17. butterfly valve assembling lines according to claim 15, it is characterised in that the inlet opening Jing water pipes of each pressing plate Road is connected to water source by water pump；The gas passage is connected to source of the gas by air gauge, electromagnetic valve of gas circuit；The downward pressure oil cylinder Fuel tank is connected by oil gauge, oil cylinder electromagnetic valve, oil pump, the control panel of the electric control unit is provided with button groups, institute State water pump, air gauge, electromagnetic valve of gas circuit, oil pump, oil gauge, oil cylinder electromagnetic valve and button groups and be connected to the PLC, PLC also connects Connect the time relay that adds water, protect the air pressure time relay and the pressure time relay that loses heart.

18. butterfly valve assembling lines according to claim 17, it is characterised in that the button groups include manual/auto turn Change button, return from dynamic test start button, Oil pump electrical machinery start button, Oil pump electrical machinery stop button, oil cylinder descending button, oil cylinder Journey button, button with air pressure capable of being increased, unload air pressure button, add water button and the stop button that adds water.

The 19. butterfly valve assembling lines according to claim 15,16,17 or 18, it is characterised in that on the pressure testing plate It is provided for positioning the positioning gutta pad of butterfly valve, the positioning gutta pad is a circular rubber cushion concentric with pressure testing plate, its external diameter and butterfly Valve base internal diameter matches and is provided with the air passing hole connected with pressure testing plate gas passage.