CN110640053B - A spring coiling machine with intelligent tool magazine - Google Patents
A spring coiling machine with intelligent tool magazine Download PDFInfo
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- CN110640053B CN110640053B CN201911063437.9A CN201911063437A CN110640053B CN 110640053 B CN110640053 B CN 110640053B CN 201911063437 A CN201911063437 A CN 201911063437A CN 110640053 B CN110640053 B CN 110640053B
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- 230000007246 mechanism Effects 0.000 claims abstract description 186
- 238000005520 cutting process Methods 0.000 claims abstract description 40
- 238000004804 winding Methods 0.000 claims abstract 9
- 230000001360 synchronised effect Effects 0.000 claims description 29
- 230000033001 locomotion Effects 0.000 claims description 26
- 238000006073 displacement reaction Methods 0.000 claims description 21
- 229910000831 Steel Inorganic materials 0.000 abstract description 13
- 239000010959 steel Substances 0.000 abstract description 13
- 238000003754 machining Methods 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 2
- 239000011295 pitch Substances 0.000 description 40
- 238000000034 method Methods 0.000 description 19
- 230000005540 biological transmission Effects 0.000 description 9
- 238000002788 crimping Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F3/00—Coiling wire into particular forms
- B21F3/02—Coiling wire into particular forms helically
- B21F3/04—Coiling wire into particular forms helically externally on a mandrel or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F11/00—Cutting wire
- B21F11/005—Cutting wire springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F23/00—Feeding wire in wire-working machines or apparatus
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- Mechanical Engineering (AREA)
- Wire Processing (AREA)
Abstract
The application provides a spring coiling machine with an intelligent tool magazine, and belongs to the technical field of metal machining without cutting, wherein wires are machined and coiled into special shapes. The wire winding and cutting device comprises a wire feeding mechanism, a pitch adjusting mechanism, a diameter changing mechanism, a cutting mechanism and a winding mechanism which are sequentially arranged, wherein wires to be processed are fed to the pitch adjusting mechanism through the wire feeding mechanism, the pitch adjusting mechanism comprises a moving motor, a guide rail, a mandrel moving mechanism, a mandrel and a core rotating mechanism, the wires after pitch adjustment are fed to the diameter changing mechanism to complete diameter changing, and then fed to the winding mechanism and the cutting mechanism to respectively complete wire winding and cutting. The application is applied to spring processing, breaks the defects of limited cutter and narrow range of processable steel wires of the traditional eight-claw machine, completely overturns the pitch adjustment mode and cutter supply mode of the traditional eight-claw machine, and has the advantages of stable pitch adjustment, multiple cutters per machine, rapid and stable cutter switching, accurate core alignment, high intelligent automation degree and the like.
Description
Technical Field
The application relates to a spring coiling machine with an intelligent tool magazine, and belongs to the technical field of metal machining without cutting, wherein wires are machined and coiled into special shapes.
Background
The spring coiling machine is a mechanical device for producing springs, steel wires are fed from a wire frame, firstly, the steel wires are straightened, then the steel wires are coiled for reducing, and finally, the steel wires are cut by a cutter to finish the manufacture of one spring.
The common eight-claw machine is mainly divided into a cam type and a non-cam type, wherein a disc is basically provided with eight cutters, and the cutters can only move along the radial direction close to or far from the circle center through a sliding block, so that the moving space is very limited; when the size of the steel wire is adjusted, the position is fixed by means of a heightening block below the cutter, and the size range which can be met is small; in the cutter feeding process, the conventional eight-claw cutter only has eight cutters, and has more parts (a large number of cams and heightening blocks are needed) and is fixed, so that the specification range which can be met is small; meanwhile, each cutter must correspond to one shaft, rough alignment can only be realized when the cutter is used for core alignment, then tools such as a screwdriver and the like are used for manual fine alignment, and the cutter has large installation space and difficult switching.
Based on this, the present application has been made.
Disclosure of Invention
In view of the above, the application provides the spring coiling machine with the intelligent tool magazine, which has the advantages of stable adjustment, multiple tools in one machine, rich types of tools and stable movement, overcomes the defects of limited tools and narrow range of processable steel wires of the traditional eight-claw machine, and completely overturns the pitch adjustment mode and the tool supply mode of the traditional eight-claw machine.
Specifically, the application is realized by the following scheme:
The wire coiling machine comprises a wire feeding mechanism, a pitch adjusting mechanism, a diameter changing mechanism, a cutting mechanism and a crimping mechanism which are sequentially arranged, a wire to be processed is fed to the pitch adjusting mechanism through the wire feeding mechanism, the pitch adjusting mechanism comprises a moving motor, a guide rail, a mandrel moving mechanism, a mandrel and a core rotating mechanism, one end of the mandrel is connected with the mandrel moving mechanism, and the other end of the mandrel penetrates through the core rotating mechanism to be matched with the wire feeding mechanism; the guide rail is connected with the output end of the mobile motor, and the core rotating mechanism and the wire feeding mechanism are respectively connected with the guide rail to form a synchronous moving system; the wires with the adjusted pitches are sent to a reducing mechanism to finish reducing, and then sent to a crimping mechanism and a cutting mechanism to finish coiling and cutting of the wires respectively; the cutting mechanism comprises an upper cutter, a transverse cutter and a lower cutter, wherein the upper cutter is driven by a switching motor and a lifting motor to respectively complete rotation and lifting movement, and the transverse cutter is driven by a transverse motor and a sliding motor to respectively complete transverse and longitudinal movement; the lower knife is driven by the lower motor to move up and down, and the upper knife, the transverse knife and the lower knife are matched to realize the positioning and cutting of the coiled wire.
In the process of processing wires into springs, the wires are sent to a pitch adjusting mechanism through a wire feeding mechanism, and relative displacement of a mandrel and the wire feeding mechanism is realized by means of a synchronous motion system formed by a guide rail, a core rotating mechanism and the wire feeding mechanism, namely, the lengths of the passed wires are changed, the pitch adjusting requirement is met, and the distance between two coils of a formed spring is expressed; in the pitch adjusting process, the mandrel is always in an absolute fixed and relative moving state, the rotating core mechanism and the wire feeding mechanism which are originally used as movable components are kept to integrally move in the horizontal direction, and each component including the mandrel is guaranteed in precision and stability, and compared with the traditional mode of transmitting displacement by means of a cam and a rod piece, the scheme effectively improves the accuracy and sensitivity of regulation and control; the wire is continuously conveyed to the reducing mechanism to finish reducing, when the whole length of the spring is rolled to a set length, the cutting mechanism is started, the upper cutter is driven by the lifting motor to move up and down to correspond to the cutting part, the switching motor is started, and the upper cutter is rotated to correspond to the cutting part to a cutter with proper specification; the transverse knife moves transversely under the drive of a transverse motor and moves up and down under the drive of a sliding motor, so that the transverse knife moves to a proper position; the lower cutter is driven by a lower motor to lift to a proper position, the three cutters work together to finish the positioning and cutting of the wire, and the wire which enters subsequently enters the coiling process of the next spring; if the distance between the two coils on the spring needs to be adjusted, the guide rail is driven to move by the moving motor so as to change the relative displacement of the mandrel and the wire feeding mechanism, namely, the adjustment of the pitch is completed, and the method is repeated, so that the machining of the steel wire with the thickness of 0.2-2mm can be realized only compared with the conventional eight-claw machine, and the machining of the steel wire with the thickness of 0.2-20mm can be satisfied by the moving mode of the pitch working procedure part; the cutter of the cutter magazine (the upper cutter, the lower cutter and the transverse cutter) can be directly rotated and displaced according to a set angle and a set displacement when the motor is driven, so that intelligent and automatic control is realized, the product precision can be monitored on line, and compared with manual adjustment adopted by a conventional eight-claw machine and eight cutter modes corresponding to eight sliding blocks, the cutter magazine has the advantages of enlarged adjustment amplitude, high precision and high intelligent automation degree, no need of installing a heightening block on a cutter frame, and the transverse and longitudinal accurate movement and the accurate switching of the cutter can be realized by means of the cooperation of each motor and the cutter.
Based on the scheme, we further study the mandrel and determine that the preferred mandrel structure is set as follows: the core shaft is positioned on the core shaft seat, the core shaft seat is connected with the core rotating mechanism and is driven to rotate by the core rotating mechanism, the core shaft positioned in the core shaft seat is provided with a clamping groove, the clamping groove is matched with the core shaft seat, and when the core shaft seat moves along with the guide rail, the clamping groove is buckled at different positions of the core shaft seat, namely, the limiting of the movement displacement of the core shaft relative to the core shaft seat is completed. More preferably, the spool seat is internally provided with a containing cavity, and the clamping groove is matched with the containing cavity to realize limit. When the guide rail moves left and right, the core rotating mechanism synchronously moves left and right along with the guide rail due to the connection of the core rotating mechanism, and the mandrel moves in the opposite direction to the moving direction of the guide rail relative to the wire feeding mechanism in the horizontal direction, so that the mandrel is contacted with the wire on the wire feeding mechanism to different degrees, and the pitch adjustment is completed; however, when the left-right movement is too large, the mandrel is easy to separate from the core rotating mechanism, and when the guide rail moves to one side to a set position, the clamping groove is clamped on the wall of the mandrel seat, and the core rotating mechanism can not move along with the guide rail any more.
Based on the above proposal, the applicant makes further researches on the guide rail and determines that the preferable guide rail is set as follows: the guide rail is arranged on the screw rod, and a synchronous belt is sleeved between the screw rod and the output end of the mobile motor. More preferably, one end of the screw rod facing the output end of the mobile motor and the output end of the mobile motor are both provided with synchronous pulleys, and the synchronous belt is sleeved between the two synchronous pulleys, namely, the power is output to the screw rod by the mobile motor. The screw rod and the synchronous belt are adopted as power transmission units, compared with a conventional cutter which moves in a mode of a lifting block below the screw rod and the synchronous belt, the conveying space is effectively reduced, and the motor is matched with the screw rod and the synchronous belt, so that accurate control of displacement is realized, the transmission efficiency and the transportation precision are improved, the diameter range of the processable steel is wider, and the control is more accurate.
Based on the above proposal, the applicant makes further researches on the wire feeding mechanism and determines that the preferable arrangement is as follows: the wire feeding mechanism is provided with a wire rotating mechanism and a guide straightening mechanism in a matched mode, the guide straightening mechanism and the wire rotating mechanism are connected with the guide rail, and the guide straightening mechanism and the wire feeding mechanism form a synchronous moving system together with the guide rail. After the wire rod to be processed is straightened by the wire straightening mechanism, the wire rod is sent to the wire rotating mechanism to rotate and release torque, and then is sent to the wire feeding mechanism by the wire rotating mechanism to continuously finish wire feeding; when the pitch is required to be changed, a moving motor is started, and the moving motor drives a guide rail to move, so that the guide straightening mechanism, the wire rotating mechanism, the wire feeding mechanism and the core rotating mechanism can be driven to move relative to the mandrel.
Based on the above scheme, the applicant makes further researches on the upper cutter and determines that the preferable upper cutter is set as follows: the upper cutter comprises a switching motor, a rotating shaft, a rotating disc, a connecting plate, a lifting motor, a first screw rod and a first cutter rest, wherein the output end of the switching motor is connected to the rotating shaft, the rotating disc and the connecting plate are respectively sleeved on the rotating shaft, and the rotating disc, the curling mechanism and the first cutter rest for installing the cutter form a synchronous motion system; the first screw rod is driven by a lifting motor and is fixedly connected with the connecting plate.
Based on the above proposal, the applicant has further studied the transverse knife and determined that the preferred transverse knife arrangement is as follows: the transverse knife comprises a transverse motor, a second guide rail, a transverse sliding plate, a sliding motor, a second screw rod and a lifting sliding plate, wherein the output end of the transverse sliding plate connected to the transverse motor is connected with the transverse sliding plate; the sliding motor is arranged at the top of the transverse sliding plate, the output end of the sliding motor is connected to the second part of the screw rod, and the lower end of the screw rod is connected with the second guide rail and the lifting sliding plate.
Based on the above scheme, the applicant makes further researches on the cutter setting, and determines that the preferable cutter setting is as follows: the lower knife is provided with a movable push-down block, and the upper knife, the transverse knife and the push-down block are matched to finish the positioning and cutting of the coiled wire.
Drawings
FIG. 1 is a schematic view of a pitch adjustment mechanism according to the present application;
FIG. 2 is a schematic view of a part of the pitch adjusting mechanism according to the present application;
FIG. 3 is a schematic view showing a partial structure of the pitch adjusting mechanism in another state of the application;
FIG. 4 is a schematic view of a cutting mechanism according to the present application;
FIG. 5 is a schematic view of the structure of the upper blade portion of the present application;
FIG. 6 is a side cross-sectional view of the upper blade portion of the present application;
FIG. 7 is a schematic view of the construction of the transverse blade portion of the present application;
FIG. 8 is a side cross-sectional view of a transverse blade portion of the present application;
fig. 9 is another side cross-sectional view of a transverse blade portion of the present application.
Reference numerals in the drawings: 1. a case plate; 11. a frame; 12. a console; 13. a work roll; 2. a pitch adjustment mechanism; 2a, accommodating the cavity; 21. a mandrel moving mechanism; 22. a mandrel; 221. a clamping groove; 222. a cutter end; 23. a mandrel base; 231. a mandrel base wall; 24. a core rotating mechanism; 241. a rotary core motor; 3. a moving motor; 31. a synchronous pulley; 32. a synchronous belt; 33. a first screw rod; 4. a wire feeding mechanism; 41. a wire feeding motor; 5. a wire transferring mechanism; 51. a wire-rotating motor; 6. a guide straightening mechanism; 7. a first guide rail; 71. a fastening block; 8. a cutting mechanism; 81. feeding a cutter; 811. a connecting plate; 812. a lifting motor; 8121. the first connecting sleeve is connected; 8122. a motor seat I; 813. a second screw rod; 814. switching the motor; 8141. a second connecting sleeve; 8142. a motor seat II; 8143. a gap; 815. a rotating shaft; 8151. a nut; 816. a rotating disc; 817. a crimping mechanism; 818. an upper tool rest; 819. an upper cutter; 82. a transverse knife; 821. a lifting slide plate; 822. a second guide rail; 8221. a guide rail seat; 823. a transverse motor; 8231. a belt pulley; 8232. a nut seat; 824. a slide motor; 8241. connecting sleeve III; 825. a transverse slide plate; 8251. a bearing seat; 8252. a nut seat; 8253. a bolt; 826. a screw rod III; 827. a transverse knife rest; 83. cutting off; 831. a lower motor; 832. a lower guide rail; 833. a downward moving plate; 834. pushing down the block.
Detailed Description
The coil spring machine with intelligent tool magazine of this embodiment, including the wire feeding mechanism 4 that sets up in order, pitch adjustment mechanism 2, reducing mechanism (not shown in the figure), cutting mechanism 8 and crimping mechanism 817, wait to handle the wire rod and send pitch adjustment mechanism 2 department through wire feeding mechanism 4, the wire rod that pitch adjustment completed sends reducing mechanism department to accomplish, send crimping mechanism 817 to accomplish the wire rod system of rolling, send cutting mechanism 8 department again, combine fig. 3, cutting mechanism 8 includes upper knife 81, horizontal sword 82 and lower sword 83, upper knife 81, horizontal sword 82 and lower sword 83 cooperation realize the location and the cutting of system wire rod of rolling.
With reference to fig. 1, the pitch adjusting mechanism 2 includes a moving motor 3, a mandrel moving mechanism 21, a mandrel 22, a first guide rail 7, a core rotating mechanism 24 and a wire feeding mechanism 4, one end of the mandrel 22 is connected with the mandrel moving mechanism 21, the other end passes through the core rotating mechanism 24 and is matched with the wire feeding mechanism 4, the core rotating mechanism 24 is provided with a core rotating motor 241 in a matching way, and the core rotating motor 241 drives the core rotating mechanism 24 to rotate so as to realize rotation of the mandrel 22; the wire feeding mechanism 4 is provided with a wire feeding motor 41 in a matched mode, and the wire feeding motor 41 is started to drive the wire feeding mechanism 4 to finish wire feeding; the first guide rail 7 is arranged on the case plate 1, preferably adopts a linear guide rail, the first guide rail 7 is connected with the output end of the mobile motor 3, and the core rotating mechanism 24 and the wire feeding mechanism 4 are respectively connected with the first guide rail 7; the moving motor 3 is started, the first guide rail 7 moves left and right to drive the core rotating mechanism 24 and the wire feeding mechanism 4 to synchronously move along with the moving motor, the mandrel 22 moves relative to the wire feeding mechanism 4, and the cutter end 222 is brought close to (as shown in fig. 2) or away from (as shown in fig. 3) the wire feeding mechanism 4, so that pitch adjustment is realized.
The device changes the traditional mode of adjusting the pitch by moving the mandrel, and realizes the relative displacement of the mandrel 22 and the wire feeding mechanism 4 by means of a synchronous motion system formed by the first guide rail 7, the core rotating mechanism 24 and the wire feeding mechanism 4, namely, the pitch adjusting requirement is met; in the pitch adjustment process, the mandrel 22 is always in an absolute fixed and relative moving state, and the rotating core mechanism 24 and the wire feeding mechanism 4 which are originally used as movable components are integrally moved in the horizontal direction, so that the precision and stability of all components including the mandrel 22 are ensured, and compared with the traditional mode of transmitting displacement by means of cams and rods, the scheme effectively improves the regulation accuracy and sensitivity.
The wire rod to be treated is subjected to four procedures of wire feeding, pitch determination, radius determination, coil spring coiling and cutting through the mechanisms:
(1) Wire feeding working procedure: the wire rod to be processed is conveyed through the wire feeding mechanism 4.
Wherein, referring to fig. 1, the wire feeding mechanism 4 is provided with a wire rotating mechanism 5 and a guiding and straightening mechanism 6 in a matching way, the wire rotating mechanism 5 is provided with a wire rotating motor 51 in a matching way, and the wire rotating motor 51 starts and drives the wire rotating mechanism 5 to finish wire rotating; the guiding and straightening mechanism 6 and the wire rotating mechanism 5 are connected with the first guide rail 7, and form a synchronous moving system together with the wire feeding mechanism 4 and the first guide rail 7. After the wire to be processed is straightened by the wire straightening mechanism 6, the wire is sent to the wire rotating mechanism 5 to rotate and release torque, and then is sent to the wire feeding mechanism 4 by the wire rotating mechanism 5, and the wire feeding is continuously completed; when the pitch is required to be changed, the moving motor 3 is started, the moving motor 3 drives the first guide rail 7 to move, and the guide straightening mechanism 6, the wire rotating mechanism 5, the wire feeding mechanism 4 and the core rotating mechanism 24 can be driven to move accurately relative to the mandrel 22 according to set requirements, so that accurate wire feeding is achieved.
(2) Pitch determination/pitch adjustment procedure:
After the wire is conveyed in, the distance between the two coils of the spring is firstly determined, namely, the pitch is adjusted, the pitch is mainly adjusted at a pitch adjusting mechanism, and in combination with fig. 2 and 3, a mandrel seat 23 is arranged below a core rotating mechanism 24, a mandrel 22 is sleeved on the mandrel seat 23 in a penetrating way, a clamping groove 221 is formed in the mandrel seat 23, and the clamping groove 221 is matched with the mandrel seat 23 to realize positioning; when the first guide rail 7 moves, the mandrel seat 23 moves accurately along with the mandrel rotating mechanism 24, and the displacement of the mandrel seat 23 and the positioning of the clamping groove 221 realize accurate control of the pitch; when the clamping groove 221 is not buckled with the spindle seat 23 (the state shown in fig. 3), the spindle 22 is in a relatively movable state, and when the first guide rail 7 moves to the right to a certain position, the clamping groove 221 is clamped on the spindle seat 23 (the state shown in fig. 2), and the spindle 22 cannot continue to move relatively.
Alternatively, the above scheme may be further added as follows: the core shaft seat 23 is internally provided with a containing cavity 2a, and the clamping groove 22 is matched with the containing cavity 2a to realize limit. When the first guide rail 7 moves left and right, the core rotating mechanism 24 is connected with the first guide rail 7, so that the core rotating mechanism 24 synchronously moves left and right along with the first guide rail 7, the mandrel 22 horizontally moves relative to the wire feeding mechanism 4 in the opposite direction to the moving direction of the first guide rail 7, namely, the contact between the cutter end 222 of the mandrel 22 and the steel wire on the wire feeding mechanism 4 in different degrees is realized, and the pitch adjustment is completed; however, when the left-right movement is too large, the spindle 22 is easily separated from the core rotating mechanism 24, and when the first guide rail 7 moves to one side to the set position, the clamping groove 221 is clamped on the spindle seat wall 231 as shown in fig. 2, and the core rotating mechanism 24 does not move along with the first guide rail 7 any more.
Alternatively, the above scheme may be further added as follows: the first guide rail 7 is arranged on the first screw rod 33, and a synchronous belt 32 is sleeved between the first screw rod 33 and the output end of the moving motor 3.
Alternatively, the above scheme may be further added as follows: one end of the first screw rod 33 facing the output end of the mobile motor and the output end of the mobile motor are both provided with synchronous pulleys 31, and the synchronous belt 32 is sleeved between the two synchronous pulleys 31, namely, the power is output to the first screw rod 33 by the mobile motor 3. The screw rod I33 and the synchronous belt 32 are adopted as power transmission units, so that the transmission space is effectively reduced, the transmission efficiency is improved, and the control is more accurate.
In the above case, the first guide rail 7 is a linear guide rail, and the first screw 33 is preferably a ball screw.
In the process of processing the wire into the spring, the wire is sent to the pitch adjusting mechanism 2 through the wire feeding mechanism 4, and the relative displacement of the mandrel 22 and the wire feeding mechanism 4 is realized by means of a synchronous motion system formed by the first guide rail 7, the core rotating mechanism 24 and the wire feeding mechanism 4, namely, the length of the passed wire is changed, the pitch adjusting requirement is met, and the gap between two coils of the formed spring is expressed; in the pitch adjustment process, the mandrel 22 is always in an absolute fixed and relative moving state, and the rotating core mechanism 24 and the wire feeding mechanism 4 which are originally used as movable components are integrally moved in the horizontal direction, so that the precision and stability of all components including the mandrel 22 are ensured, and compared with the traditional mode of transmitting displacement by means of cams and rods, the scheme effectively improves the regulation accuracy and sensitivity.
(3) Determination of spring diameter: the wire rod is continuously conveyed to the position of the reducing mechanism to finish reducing, and the reducing shaft of the reducing mechanism finishes controlling the diameter of the spring.
(4) Cutting procedure:
Referring to fig. 4, the crimping mechanism 7 is disposed on the rotating disc 816, the wire with a determined pitch and a reduced diameter is wound to form a spring, and when the whole length of the spring is wound to a set length, the cutting mechanism is started: the upper knife 81 is driven by the lifting motor to move up and down according to the set displacement to correspond to the cutting part, the switching motor is started, and the upper knife 81 rotates according to the set angle to correspond to the cutting part of the cutter with proper specification; the transverse knife 82 moves transversely along the arrow direction shown in the position of fig. 4 according to the set displacement under the drive of the transverse motor, moves up and down along the arrow direction shown in the position of fig. 4 according to the set displacement under the drive of the sliding motor, and moves the transverse knife 82 to a proper position according to the set displacement; the lower knife 83 is driven by a lower motor to lift to a proper position according to the set displacement, and the three knives work together to accurately position and cut off the core according to the set requirement, so that the wire which enters subsequently enters the next spring coiling process; if the distance between the two coils on the spring needs to be adjusted, the guide rail is driven to move by the moving motor so as to change the relative displacement of the mandrel and the wire feeding mechanism, namely, the pitch adjustment is completed, and the operation is repeated.
Alternatively, the above scheme may be further added as follows: referring to fig. 5, the upper cutter 81 includes a switch motor 814, a rotation shaft 815, a rotation disc 816, a connection plate 811, a lifting motor 812, a first screw 813 and a first cutter holder 818, wherein an output end of the switch motor 814 is connected to the rotation shaft 815, the rotation disc 816 and the connection plate 811 are respectively sleeved on the rotation shaft 815, and the rotation disc 816 and the first cutter holders 818 form a synchronous motion system; the first screw rod 813 is driven by a lifting motor 812 and is fixedly connected with the connecting plate 811. The present application provides rotation and lifting movement with a switch motor 814 and a lifting motor 812, respectively, and achieves conversion of the two by means of a connection plate 811. Before use, each first cutter holder 818 is provided with an upper cutter 819 with a specification, when the cutter holder 818 needs to be switched, a switching motor 814 is started, and the rotating disc 816 is driven to rotate along the direction shown in fig. 4 through a rotating shaft 815, so that the first cutter holder 818 and the upper cutter 819 on the first cutter holder 818 which synchronously move with the rotating disc 816 can be driven to be switched in a rotating way; the lifting motor 812 is started to drive the screw rod two 813 to rotate, and in the rotation of the screw rod two 813, the rotating shaft 815, the rotating disc 816 on the rotating shaft 815 and the tool rest one 818 are driven by the connecting plate 811 to lift along the arrow direction shown in fig. 4, namely, the longitudinal height is changed.
In the above case, the second screw 813 is preferably a ball screw; different types of cutters can be respectively arranged on the rotating disc 816, such as cutters, outer diameter forming cutters, angle dismantling cutters, twisting heads, hydraulic scissors, servo scissors, forming cutters, curve rollers, auxiliary core cutters, stamping forming cutters and the like, and a cutter magazine is formed at the upper cutter 81.
Alternatively, the above scheme may be further added as follows: referring to fig. 5, the tool holders 818 are uniformly distributed circumferentially about the rotating disc 816. More preferably, tool holder one 818 is provided with three. The circumference mode of the first knife rest 818 is convenient for switching the first knife rest 818 and the upper knife 819 on the corresponding first knife rest 818 in the rotation process of the rotating disc 816, so that the use is more convenient; for conventional one cycle processing, three are provided to meet the requirements for the cutters during operation.
Alternatively, the above scheme may be further added as follows: a nut 8151 is provided on the top of the rotation shaft 815, the nut 8151 is preferably a hex nut. The hex nut protrudes above the rotating plate 816 and one end of the first tool holder 818 is positioned against the hex nut and the other end is provided with an upper cutter 819. The arrangement of the hexagonal nut is convenient for fixing the rotating disc 816, is beneficial to positioning the first tool rest 818, and avoids the first tool rest 818 from shifting caused by centrifugal force in the rotating process.
Alternatively, the above scheme may be further added as follows: referring to fig. 6, the lifting motor 812 is fixed on the first motor seat 8122, one end of the second screw rod 813 is fixed with the connecting plate 811, and the other end of the second screw rod passes through the first motor seat 8122 to be connected with the output end of the lifting motor 812, and more preferably, a connecting sleeve 8121 is sleeved at the joint of the output end of the lifting motor 812 and the second screw rod 813. In use, the lifting motor 812 realizes power output by means of rotation of the screw rod two 813, and is further represented as lifting of the rotating disc 816, and in the process of the movement, in order to prevent displacement caused by the working of the lifting motor 812, the lifting motor 812 is fixed on the motor base one 8122, so that the stability of the lifting motor 812 can be ensured; the arrangement of the first connecting sleeve 8121 further strengthens the installation stability of the second screw rod 813.
Alternatively, the above scheme may be further added as follows: referring to fig. 6, the switch motor 814 is fixed to the second motor base 8142, and the second motor base 8142 is fixed to the connecting plate 811, that is, the switch motor 814 is fixed. The connecting plate 811 and the second screw rod 813 form synchronous movement, the second motor seat 8142 is fixedly connected with the connecting plate 811, synchronous lifting of the switching motor 814 and a rotating shaft 815 connected with the output end of the switching motor 814 can be achieved, and control is more accurate. More preferably, the connection part between the rotation shaft 815 and the output end of the switch motor 814 is sleeved with a second connecting sleeve 8141, and the arrangement of the second connecting sleeve 8141 further strengthens the installation stability of the rotation shaft. More preferably, the interior of the second connecting sleeve 8141 is formed by two sections of hollow cavities which are mutually communicated, and the inner diameters of the two sections of hollow cavities are different, the rotating shaft and the output end of the switching motor form a synchronous motion system by the connecting sleeve, but because the inner diameters of the hollow cavities at the two ends are different, the output end of the switching motor is not in direct contact with the rotating shaft, a gap 8143 is formed between the output end of the switching motor and the rotating shaft, and a reserved space is formed by the structure of the second connecting sleeve 8141 during installation, so that frictional heat generated by overlarge kinetic energy in high-speed rotation of the rotating shaft 815 and the switching motor 814 is avoided.
Alternatively, the above scheme may be further added as follows: referring to fig. 5 and 6, a crimping mechanism 817 is interleaved with the tool holder 818. The curling mechanism 817 is arranged on the rotating disc 816, the curling mechanism 817, the tool rest 818 and the rotating disc 816 form a synchronous motion system, the synchronization of coiling and cutting is realized, and the stability and the synchronism of steel wire transmission are ensured; the staggered arrangement shortens the path between cutting and coiling to the shortest, reduces waste generation and meets the requirement of timely coiling.
Alternatively, the above scheme may be further added as follows: referring to fig. 7-9, the transverse knife 82 includes a transverse motor 823, a second guide rail 822, a transverse slide 825, a sliding motor 824, a third screw 826 and a lifting slide 827, the transverse slide 825 is connected to an output end of the transverse motor 823, the third guide rail 822 is mounted on the transverse slide 825, the lifting slide 827 is mounted on the third guide rail 822, and a second knife rest 828 for mounting the knife is located on the lifting slide 827; the sliding motor 824 is arranged on the top of the transverse sliding plate 825, the output end of the sliding motor 824 is connected to the third screw 826, and the lower end of the third screw 826 is connected with the second guide rail 822 and the lifting sliding plate 827.
In this case, the transverse motor 823 and the sliding motor 824 are respectively correspondingly provided with a transverse slide plate 825 and a lifting slide plate 827, the transverse motor 823 outputs power and transmits the power to the transverse slide plate 825 to drive the sliding motor 824 and the guide rail II 822 on the transverse slide plate 825 and the lifting slide plate 827 connected with the guide rail II 822 to transversely move, so that the knife rest II 828 on the lifting slide plate 827 moves to a proper transverse position; the slide motor 824 outputs power to the third screw 826, and the third screw 826 works to drive the lifting slide 827 to lift along the second guide rail 822, so as to move the second tool rest 828 on the lifting slide 827 to a proper longitudinal position. The application converts the movement of the knife rest II 828 and the knife tool from the conventional unidirectional movement into the movement and the change of the transverse direction and the longitudinal direction, the movable space of the knife tool is enlarged, the adjustability is better, and the application can better adapt to the use requirements of various operation environments.
In the above case, the third screw 826 is preferably a ball screw, and the second guide 822 is preferably a linear guide.
Alternatively, the above scheme may be further added as follows: the transverse slide plate 825 is provided with a nut seat 8252, the nut seat 8252 is provided with a bolt 8253, the bolt 8253 is connected with the output end of the transverse motor 823 through a belt pulley 8231, and the power is transferred from the transverse motor 823 to the transverse slide plate 825. The transverse motor 823 and the transverse sliding plate 825 are connected through the belt pulley 8231 to realize power transmission, so that the transmission is quick, the deviation is small, and the transmission is stable.
Alternatively, the above scheme may be further added as follows: referring to fig. 8, a transverse motor 823 is mounted on a chassis plate 1, a slot is formed in a position corresponding to the chassis plate 1, guide rail seats 8221 are respectively formed above and below the slot, and a transverse sliding plate 825 is fixed to the chassis plate 1 through the guide rail seats 821. The setting of cabinet board 1 has made things convenient for the fixed of transverse motor 823, and keeps apart it with transverse motor 823 and settle, avoids transverse motor 823 to start the noise interference that causes, and transverse motor 825, guide rail two 822, lift slide 827 etc. are all dynamic in the work, and transverse motor 823 then can not take place the removal of position, realizes the sound separation of work device.
Alternatively, the above scheme may be further added as follows: a connecting sleeve 8241 is arranged at the joint of the output end of the sliding motor 824 and the screw rod III 826, and the sliding motor 824 is connected with the transverse sliding plate 825 through the connecting sleeve 8241. More preferably, the screw rod III 826 is sleeved with a bearing seat 8251, and the bearing seat 8251 is positioned below the connecting sleeve III 8241. Since the slide motor 824 cooperates with the third screw 826 to effect longitudinal movement of the second tool holder 828, the provision of the third connection sleeve 8241 ensures a smooth connection of the slide motor 824 to the transverse slide 825 during this dynamic process. The bearing seat 8251 shares a part of downward pressure, so that excessive load is avoided to influence the smooth operation of the screw rod III 826.
Alternatively, the above scheme may be further added as follows: referring to fig. 7, the lower knife 83 further includes a lower motor 831, a lower guide rail 832, and a lower moving plate 833, the lower pushing block 83 is mounted on the lower moving plate 833, the lower moving plate 833 is mounted on the lower guide rail 832, the lower guide rail 832 is driven by the lower motor 831, the lower pushing block 834 is mounted on the lower moving plate 833, when the lower knife 83 is required to be matched, the lower motor 831 is started, the lower motor 831 works, and the lower guide rail 832 is pushed to move up and down as indicated by an arrow in fig. 4, so as to drive the lower moving plate 833 and the lower pushing block 834 on the lower moving plate 833 to move up and down.
When the whole length of the spring is rolled to the set length, the cutting mechanism 8 is started, the cutter on the first cutter holder 818 is driven by the lifting motor 812 to move up and down to correspond to the cutting position, the switching motor 814 is started, and the cutter on the first cutter holder 818 is rotated to correspond to the cutting position to a cutter with proper specification; the cutter on the second cutter rest 827 moves transversely under the drive of the transverse motor 823 and moves up and down under the drive of the sliding motor 824, so that the cutter on the second cutter rest 827 moves to a proper position; the lower pushing block 834 is driven by the lower motor 831 to lift to a proper position, and the cutter on the first cutter holder 818, the cutter on the second cutter holder 827 and the lower pushing block 834 work together to finish the positioning and cutting of the wire, and the wire which enters subsequently enters the coiling process of the next spring; if the distance between the two coils on the spring needs to be adjusted, the guide rail is driven to move by the moving motor so as to change the relative displacement of the mandrel and the wire feeding mechanism, namely, the pitch adjustment is completed, and the operation is repeated.
The spring coiling machine provided by the embodiment has the advantages of stable adjustment, multiple cutters in one machine, rich cutter types, stable movement, accurate alignment, automatic intelligent control of cutter displacement and the like, thoroughly breaks through the defects of limited cutter and narrow range of processable steel wires of the traditional eight-claw machine, and completely overturns the pitch adjustment mode and cutter supply mode of the traditional eight-claw machine.
Claims (7)
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| WO2022007086A1 (en) * | 2020-07-10 | 2022-01-13 | 浙江华剑智能装备股份有限公司 | Dual-steel wire conveying apparatus and spring coiling machine having same |
| CN112962137B (en) * | 2021-02-01 | 2021-10-01 | 广东嘉元科技股份有限公司 | Copper wire spiral cuts back pay-off and dissolves copper jar |
| CN114798989B (en) * | 2022-04-14 | 2025-01-07 | 嵊州市金狮弹簧机械有限公司 | Wire guide device with adjustable wire feeding path for wire bending machine |
| CN116967378B (en) * | 2023-09-25 | 2023-12-05 | 苏州立而达精准弹簧有限公司 | Cutter driving switching device applied to vortex spring production equipment |
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| US6000265A (en) * | 1997-06-10 | 1999-12-14 | Kabushiki Kaisha Itaya Seisaku Sho | Spring manufacturing apparatus |
| US8136379B2 (en) * | 2007-06-05 | 2012-03-20 | Kabushiki Kaisha Itaya Seisaku Sho | Helical part manufacturing apparatus and control method thereof |
| CN101559463B (en) * | 2009-06-04 | 2011-01-19 | 陈仁杰 | Intelligent computerized numerical control (CNC) spring machine |
| CN107639189B (en) * | 2017-09-18 | 2023-09-08 | 浙江万能弹簧机械有限公司 | Spring finishing device |
| CN109332558B (en) * | 2018-11-06 | 2023-10-27 | 浙江万能弹簧机械有限公司 | Low-noise type high-speed spring coiling machine |
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