CN107932055A - A kind of full-automatic ball valve group installs standby and its assemble method - Google Patents

Abstract

The invention relates to the technical field of ball valve manufacturing equipment, and discloses a fully automatic ball valve assembly equipment and an assembly method thereof. The equipment includes a workbench, on which several valve body fixtures and bonnet fixtures are evenly distributed. The side of the workbench is provided with a side sealing ring packing mechanism, a side screw cap and valve stem feeding robot, and a side screw cap tightening mechanism. Device, valve ball installation mechanism, bonnet installation mechanism, pre-tightening and glue adding mechanism, locking mechanism, valve body and bonnet loading robot, wherein the side of the valve ball installation mechanism away from the workbench is provided with a valve ball feeding robot. The invention adopts a multi-station turntable workbench, and every time the workbench turns a station, all the devices are assembled at the same time, that is, every time a station is turned, the assembly of a ball valve is completed, and the assembly efficiency is high.

Description

A kind of automatic ball valve assembly equipment and its assembly method

technical field

The invention relates to the technical field of ball valve manufacturing equipment, in particular to a fully automatic ball valve assembly equipment and an assembly method thereof.

Background technique

In my country, ball valves are widely used in petroleum refining, long-distance pipelines, chemical industry, papermaking, pharmaceuticals, water conservancy, electric power, municipal, steel and other industries, and occupy a pivotal position in the national economy. Ball valve assembly is the post process of ball valve production and plays an important role in its manufacturing.

At present, domestic enterprises that produce ball valves basically assemble them by hand when producing and assembling ball valves. The existing method of manually assembling ball valves has disadvantages such as slow speed and low assembly efficiency, which obviously cannot meet the automation and high-precision production requirements of modern manufacturing. In addition, in a large ball valve enterprise, the output of ball valves is generally large in a year, so it is necessary to recruit a large number of assembly workers to assemble the ball valves. A large amount of labor requires a lot of labor costs, and the economic benefits are not high. There is a problem of difficulty in recruiting workers. Sometimes it is not possible to recruit enough workers for assembly and production, resulting in delays in product processing. For example, the Chinese patent with application number 201620807273.1: a fully automatic disc ball valve assembly machine realizes the assembly of fully automatic ball valves, but the valve ball feeding mechanism, valve stem assembly mechanism, steel ball assembly mechanism, valve Mechanisms such as the cover assembly mechanism have the disadvantages of complicated structural design and unreasonable design. The present invention starts from solving the deficiencies in the prior art, and designs a fully automatic ball valve assembly equipment with simple and reasonable structure, using robots for loading and unloading, and a high degree of automation.

Contents of the invention

The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art, and provide a fully automatic ball valve assembly equipment with reasonable structural design, perfect system, and comprehensively improve the assembly efficiency of ball valves, and provide its assembly method.

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

A fully automatic ball valve assembly equipment, characterized in that it includes a workbench; several valve body fixtures and bonnet fixtures are evenly distributed on the workbench, and the side of the workbench is provided with a side sealing ring packing mechanism, a side screw cover and a Stem feeding robot, side screw cap tightening device, valve ball installation mechanism, bonnet installation mechanism, pre-tightening and glue adding mechanism, locking mechanism, valve body and bonnet feeding robot, wherein the valve ball installation mechanism is far away from the working table One side is equipped with a valve ball feeding robot;

The packing mechanism of the side sealing ring includes a base and a cylinder one, the cylinder one is fixed on the base along the horizontal direction, and the end of the cylinder rod of the cylinder one is provided with a push head;

The side screw cap tightening device includes the first tightening machine and the second cylinder; the first tightening machine is horizontally arranged on the side of the corresponding station, and the second cylinder is vertically arranged directly above the corresponding station through the installation frame one. The end of the cylinder rod of the second is provided with an ejection head;

The valve ball installation mechanism includes a cylinder three, and the cylinder three is vertically arranged directly above the corresponding station through the installation frame two, and the end of the cylinder rod of the cylinder three is provided with a compression head;

The clamp part of the valve ball feeding robot contains two oppositely arranged mechanical holding fingers, which are driven by power to perform opening and closing actions;

The bonnet installation mechanism includes a drive module, a clamping part and a cylinder four; the cylinder four is connected to the drive module along the horizontal direction, and the cylinder four moves up and down in the vertical direction under the action of the drive module, and the clamping part is connected with the cylinder four;

The pre-tightening and glue adding mechanism includes a bracket, a second tightening machine, a syringe and cylinder five; the second tightening machine is set on the upper part of the bracket, and the tightening head of the second tightening machine is facing the valve body fixture on the corresponding station The syringe is connected to the cylinder five, and the cylinder five is horizontally arranged on the lower part of the support, and the glue outlet of the syringe is facing the thread of the valve body clamped on the valve body fixture on the corresponding station.

The automatic ball valve assembly equipment of the present invention also includes a valve stem feeding vibration cylinder, a side screw cap feeding vibration cylinder and a side sealing ring feeding vibration cylinder.

The workbench described in the present invention is a disc-type rotatable workbench, which performs intermittent indexing rotation around the center of the circle; the edge of the workbench is evenly distributed with eight stations in the circumferential direction, and each station is provided with a valve body fixture, each The valve body fixture is correspondingly provided with a bonnet fixture; the side sealing ring packing mechanism, the side screw cap and valve stem loading robot, the side screw cap tightening device, the valve ball installation mechanism, the bonnet installation mechanism, the pre-tightening and tightening The glue mechanism, locking mechanism, and valve body and bonnet feeding robot form a circle along the circumference of the disc-type rotatable workbench, and correspond to a station in sequence.

An assembly method for fully automatic ball valve assembly equipment, characterized in that it includes the following steps:

(1) The side sealing ring feeding vibrating cylinder feeds the side sealing ring onto the push head of the side sealing ring filling mechanism, and the push head puts the side sealing ring into the valve body clamped by the valve body fixture under the action of cylinder one In the side valve stem hole, the workbench rotates one position;

(2) The side screw cap and valve stem loading robot takes out the valve stem from the outlet of the valve stem feeding vibration cylinder, loads the valve stem from the upper port of the valve body into the valve stem hole, and the worktable rotates one station ;

(3) In the side screw cap tightening device, the ejector head at the end of the cylinder rod of cylinder 2 goes deep into the valve body downwards, and the valve stem is installed in place, and then the side screw cap and valve stem feeding robot feeds the vibration cylinder from the side screw cap Take out the side screw cap from the discharge port of the valve, and place the side screw cap on the valve stem. At this time, the first tightening machine tightens the side screw cap, and the worktable rotates one station;

(4) The valve ball feeding robot places the valve ball into the valve body, and the compression head at the end of the cylinder rod of cylinder three in the valve ball installation mechanism extends into the valve body to compress the valve ball so that the notch of the valve ball and the valve stem Cooperate, the workbench rotates one station;

(5) The clamping part of the bonnet installation mechanism clamps the bonnet under the action of cylinder four and the drive module, puts the bonnet on the valve body, and the workbench rotates one station;

(6) The pre-tightening and glue adding mechanism pre-tightens the bonnet and the valve body, and at the same time of pre-tightening, injects glue into the threaded connection between the bonnet and the valve body, and the workbench rotates one station;

(7) The locking mechanism tightens the bonnet and the valve body, and the workbench rotates one position;

(8) The valve body and bonnet feeding robot takes out the assembled ball valve from the valve body fixture, and then puts the valve body and bonnet into the valve body fixture and bonnet fixture respectively.

Compared with the prior art, the present invention has the following advantages and effects:

(1) The automatic ball valve assembly equipment adopts a multi-station turntable workbench. Every time the workbench turns a station, all the devices are assembled at the same time, that is, every time a station is turned, the assembly of a ball valve is completed, and the assembly efficiency is high. high;

(2) The automatic ball valve assembly equipment adopts robot loading and unloading, which has high efficiency;

(3) The fully automatic ball valve assembly equipment is controlled by a programmable controller PLC, and only needs interface operation, which is easy to operate and greatly saves the labor cost of the enterprise.

Description of drawings

Fig. 1 is a schematic structural diagram of a fully automatic ball valve assembly device according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of the structure of the fully automatic ball valve assembly equipment for removing the side screw cover, the side sealing ring and the valve stem loading vibrating cylinder according to the embodiment of the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are explanations of the present invention and the present invention is not limited to the following examples.

Referring to Fig. 1, a fully automatic ball valve assembly equipment according to an embodiment of the present invention includes a workbench 10, a side sealing ring packing mechanism 11, a side screw cap and valve stem loading robot 12, a side screw cap tightening device 13, and a valve ball loading mechanism. Robot 14, valve ball installation mechanism 15, bonnet installation mechanism 16, pre-tightening and glue adding mechanism 17, locking mechanism 18, valve body bonnet feeding robot 19.

The workbench 10 is a disc-type rotatable workbench, and a power mechanism is arranged under the workbench. Driven by the power mechanism, the workbench 10 performs intermittent indexing rotation around its center of circle. Eight workstations are evenly distributed around the edge of the workbench 10 , each station is provided with a valve body clamp 101 , and each valve body clamp 101 is correspondingly provided with a bonnet clamp 102 .

Side sealing ring filling mechanism 11, side screw cap and valve stem loading robot 12, side screw cap tightening device 13, valve ball installation mechanism 15, valve cap installation mechanism 16, pre-tightening and glue adding mechanism 17, locking mechanism 18 , The valve body and bonnet feeding robot 19 forms a circle along the circumferential direction of the disc-type rotatable workbench 10, and corresponds to a station respectively in sequence.

The side sealing ring filling mechanism 11 includes a base 111 and a cylinder one 112 fixed on the base along the horizontal direction. The end of the cylinder rod of the cylinder one 112 is provided with a push head, and the push head is facing the valve clamped on the corresponding station. Stem hole on body side. The side seal ring feeding vibration cylinder 113 feeds the side seal ring onto the push head at the end of the cylinder rod of cylinder one 112, and then the push head puts the side seal ring into the valve stem hole of the valve body through the telescopic movement of the cylinder rod .

Side screw cap and valve stem loading robot 12 are used for valve stem is packed in the valve stem hole of valve body, and side screw cap is packed into on the end that valve stem stretches out valve stem hole; Side screw cap and valve The rod is loaded by the side screw cover feeding vibration cylinder 121 and the valve stem feeding vibration cylinder 122 respectively.

The side screw cap tightening device 13 includes a first tightening machine 131 and a second cylinder 132 . The first screwing machine 131 is horizontally arranged on the side of the corresponding station. Cylinder 2 132 is vertically arranged directly above the valve body fixture on the corresponding station through mounting frame 1 133, and the end of the cylinder rod of cylinder 2 132 is equipped with an ejector head, and the cylinder rod is stretched out to drive the ejector head Enter the valve body clamped on the corresponding station, and withstand the valve stem, and install the valve stem in place. At this time, the first tightening machine 131 performs pre-tightening and tightening on the side screw cap, and the prior art can be referred to for the pre-tightening and tightening.

The valve ball feeding robot 14 and the valve ball installation mechanism 15 are located at the same station, and this station completes the loading and compression of the valve ball. The valve ball installation mechanism 15 includes a cylinder three 151, and the cylinder three 151 is vertically arranged directly above the valve body fixture on the corresponding station through the installation frame two, and the bottom of the cylinder rod of the cylinder three 151 is equipped with a compression head . The clamp part of the valve ball loading robot 14 contains two oppositely arranged mechanical holding fingers 141, which are driven by power to perform opening and closing actions, thereby clamping the valve ball and loading it into the valve body, and then the cylinder rod of the cylinder three 151 Stretch out so as to drive the compression head to enter the valve body clamped by the valve body fixture on the corresponding station, and compress the valve ball so that the gap of the valve ball fits with the valve stem.

The bonnet installation mechanism 16 includes a driving module 161 , a cylinder four 162 and a clamping part 163 . The fourth cylinder 162 is connected to the driving module 161 along the horizontal direction, and the clamping part 163 is connected to the cylinder rod of the fourth cylinder 162 . The cylinder rod of cylinder four 162 is stretched out, driving the clamping part 163 to move to the top of the bonnet fixture on the corresponding station; then under the action of the driving module 161, cylinder four 162 makes a downward movement in the vertical direction, thereby driving the clamping part 163 makes a downward movement to clamp the bonnet; then the cylinder rod of cylinder 4 162 retracts, driving the clamping part 163 to move to the top of the valve body fixture on the corresponding station, thereby placing the bonnet on the valve body.

The pre-tightening and glue adding mechanism 17 is used for pre-tightening the bonnet and the valve body, and injecting glue into the threaded connection between the bonnet and the valve body while pre-tightening, so as to ensure the tightness of the ball valve. The pre-tightening and glue adding mechanism 17 includes a support 171, a second tightening machine 172, a syringe and a cylinder five. The second tightening machine 172 is arranged on the upper part of the bracket 171 , and the tightening head of the second tightening machine 172 is facing the valve body fixture on the corresponding station. The syringe is connected to the cylinder five, and the cylinder five is horizontally arranged at the lower part of the bracket 171. The glue outlet of the syringe is facing the thread of the valve body clamped on the valve body fixture on the corresponding station, and the needle cylinder is driven by the cylinder five so that Inject glue into the threaded connection of the bonnet and body.

The locking mechanism 18 is used to tighten the bonnet after installation, so that the bonnet and the valve body will not fall off. The structure of locking mechanism 19 is identical with the pre-tightening of removing needle cylinder and cylinder five and the structure of glue-adding mechanism 17. As for how the tightening machine performs pre-tightening and tightening, reference may be made to the prior art.

The valve body and bonnet loading robot 19 adopts a four-axis robot, which is used to take out the assembled ball valve from the station, and then put the valve body and bonnet into the valve body fixture 101 and the bonnet fixture 102 respectively.

An assembly method of a fully automatic ball valve assembly device in an embodiment of the present invention includes the following steps:

(1) The side sealing ring feeding vibration cylinder 113 feeds the side sealing ring to the push head of the side sealing ring filling mechanism 11, and the push head puts the side sealing ring into the valve body fixture 101 under the action of the cylinder one 112. In the side stem hole of the clamped valve body, the workbench 10 rotates one station;

(2) The side screw cap and valve stem loading robot 12 takes out the valve stem from the outlet of the valve stem feeding vibration cylinder 122, puts the valve stem into the valve stem hole from the upper port of the valve body, and the workbench 10 rotates a station;

(3) The ejector head of the end of the cylinder rod of cylinder 2 132 in the side screw cap tightening device 13 goes deep into the valve body downwards, installs the valve stem in place, and then the side screw cap and the valve stem loading robot 12 are removed from the side screw cap. The side screw cap is taken out from the discharge port of the material vibrating cylinder 121, and the side screw cap is placed on the valve stem. At this time, the first tightening machine 131 tightens the side screw cap, and the workbench 10 rotates by one station;

(4) The valve ball feeding robot 14 places the valve ball into the valve body, and the compression head at the end of the cylinder rod end of the cylinder three 151 in the valve ball installation mechanism 15 extends into the valve body to compress the valve ball so that the gap of the valve ball Cooperating with the valve stem, the workbench 10 rotates one station;

(5) The clamping part 163 of the bonnet installation mechanism 16 clamps the bonnet under the action of the cylinder 4 162 and the driving module 161, and places the bonnet on the valve body, and the workbench 10 rotates one station;

(6) The pre-tightening and glue adding mechanism 17 pre-tightens the bonnet and the valve body, and at the same time of pre-tightening, injects glue into the threaded connection between the bonnet and the valve body, and the workbench 10 rotates one station;

(7) The locking mechanism 18 tightens the bonnet and the valve body, and the workbench 10 rotates by one position;

(8) The valve body and bonnet loading robot 19 takes out the assembled ball valve from the valve body fixture 101 , and then puts the valve body and bonnet into the valve body fixture 101 and bonnet fixture 102 respectively.

In addition, it should be noted that the specific embodiments described in this specification may be different in parts, shapes and names of parts, and the above content described in this specification is only an illustration of the structure of the present invention. All equivalent changes or simple changes made according to the structure, features and principles described in the patent concept of the present invention are included in the protection scope of the patent of the present invention. Those skilled in the art to which the present invention belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, as long as they do not deviate from the structure of the present invention or exceed the scope defined in the claims. All should belong to the protection scope of the present invention.

Claims (4)

1. a kind of full-automatic ball valve group installing is standby, it is characterised in that：Including workbench；Several uniformly distributed valve body fixtures on workbench With bonnet fixture, the side of workbench is equipped with side seal circle dress filling body, side blind nut and valve rod feeding robot, side spiral shell successively Lid device for screwing up, valve ball installing mechanism, bonnet installing mechanism, pre-screwing and glue adding machine structure, retaining mechanism, valve body bonnet feeder Device people, wherein side of the valve ball installing mechanism away from workbench are provided with valve ball feeding robot；

Side seal circle dress filling body includes pedestal and cylinder one, and cylinder one is fixed on pedestal in the horizontal direction, cylinder one Cylinder rod end set is cut somebody's hair；

Side blind nut device for screwing up includes the first tightening machine and cylinder two；First tightening machine is arranged horizontally in the side of corresponding station Side, cylinder two are arranged in a vertical direction by mounting bracket one and are set in the surface of corresponding station, the cylinder boom end of cylinder two It is equipped with ejection head；

Valve ball installing mechanism includes cylinder three, cylinder three by mounting bracket two be arranged in a vertical direction corresponding station just on Side, the cylinder rod end set of cylinder three have hold-down head；

The holder part of valve ball feeding robot contains two machineries being oppositely arranged and accommodates finger, under power drive, opens Conjunction acts；

Bonnet installing mechanism includes drive module, hold assembly and cylinder four；Cylinder four is connected to drive module in the horizontal direction On, cylinder four vertically moves up and down under drive module effect, and hold assembly is connected with cylinder four；

Pre-screwing and glue adding machine structure include stent, the second tightening machine, syringe and cylinder five；Second tightening machine is arranged on the upper of stent Portion, and the valve body fixture screwed corresponding to a face on station of the second tightening machine；Syringe and cylinder five connect, and cylinder five is horizontal Stent lower part is arranged on, corresponding to the glue-spreading head face of syringe on station upper valve body fixture at the screw thread of the valve body of clamping.

2. a kind of full-automatic ball valve group installing according to claim 1 is standby, it is characterised in that：The full-automatic ball valve group Installing is standby to further include valve rod feeding vibrations cylinder, side blind nut feeding vibrations cylinder and side seal circle feeding vibrations cylinder.

3. a kind of full-automatic ball valve group installing according to claim 1 is standby, it is characterised in that：The workbench is disk Formula rotatable working table, does intermittent indexing around its center of circle and rotates；The edge of workbench is circumferentially evenly distributed with eight stations, each station One valve body fixture of upper setting, each valve body fixture are correspondingly arranged a bonnet fixture；Described side seal circle dress filling body, Side blind nut and valve rod feeding robot, side blind nut device for screwing up, valve ball installing mechanism, bonnet installing mechanism, pre-screwing and plus glue Mechanism, retaining mechanism, valve body bonnet feeding robot form a circle along the circumferencial direction of disc type rotatable working table, and by first A station is sequentially corresponding in turn to afterwards.

4. a kind of full-automatic ball valve group as described in any one claim in claims 1 to 3 installs standby assembling side Method, it is characterised in that：Include the following steps：

（1）Side seal circle feeding, which shakes cylinder, will expect on side seal circle on side seal circle dress the cutting somebody's hair of filling body, and cut somebody's hair in gas Side seal circle is put under the action of cylinder one in the side valve rod aperture of the valve body of valve body fixture clamping, workbench rotates a station；

（2）The discharge outlet of side blind nut and valve rod feeding robot from valve rod feeding vibrations cylinder takes out valve rod, by valve rod from valve body Upper port is encased in valve rod hole, and workbench rotates a station；

（3）The ejection head of the cylinder boom end of cylinder two in the blind nut device for screwing up of side reaches deep down into valve body, and valve rod is installed to , then the discharge outlet of side blind nut and valve rod feeding robot from side blind nut feeding vibrations cylinder takes out side blind nut, by side blind nut It is placed on valve rod, the first tightening machine offside blind nut is tightened at this time, and workbench rotates a station；

（4）Valve ball is placed into valve body by valve ball feeding robot, the pressure of the cylinder boom end of cylinder three in valve ball installing mechanism Tight head stretches into valve body, compresses valve ball, and the notch and valve rod for making valve ball coordinate, and workbench rotates a station；

（5）The hold assembly of bonnet installing mechanism clamps bonnet under the action of cylinder four and drive module, and bonnet is placed Onto valve body, workbench rotates a station；

（6）Pre-screwing and glue adding machine structure carry out pre-screwing to bonnet and valve body, and while pre-screwing, to bonnet and valve The threaded connection place of body is filled rotates a station into glue, workbench；

（7）Retaining mechanism tightens bonnet and valve body, and workbench rotates a station；

（8）Valve body bonnet feeding robot takes out the ball valve being completed from valve body fixture, then by valve body and bonnet point It is not put into valve body fixture and bonnet fixture.