A fixed-length cutting device for the production and processing of electronic wire harnesses

Abstract

The present invention relates to the technical field of electronic wire harness cutting and processing, and specifically to a fixed-length cutting device for electronic wire harness production and processing, including a workbench, a work frame, a work beam, a wire harness cutting assembly, a reciprocating control device and a clamping device, wherein the work frame is fixedly mounted on the workbench, and the work beam is fixedly connected to the work frame, the wire harness cutting assembly is mounted on the workbench and the work beam, the reciprocating control device is fixedly mounted on the work frame, the clamping device is fixedly mounted on the reciprocating shaft of the reciprocating control device, and two mutually symmetrical conveying and pulling structures are mounted on the work frame; the conveying and pulling structure includes a track groove, a track block, a sliding port, a sliding frame, a track seat, a power motor, a power shaft and a conveying roller, and the track groove is opened on one side wall of the work frame. The present invention effectively smoothes and gathers the cut electronic wire harness through components such as a control structure, thereby improving the quality of fixed-length cutting.

Description

Technical Field

[0001] The invention relates to the technical field of electronic wire harness cutting and processing, and in particular to a fixed-length cutting device for the production and processing of electronic wire harnesses. Background Art

[0002] Electronic wiring harnesses are electronic equipment connection components composed of wires, terminals, plastic parts and other components. They are mainly used to transmit electrical signals and power signals between two isolated electronic circuits to achieve various functions. During the mass production of electronic wiring harnesses, the wiring harness raw materials are transported with the help of conveyor rollers, and the cutting and end point stripping work is completed in conjunction with the cutting equipment in a fixed position.

[0003] The deficiency of the above-mentioned prior art is that when the existing device performs batch electronic wire cutting work and controls the electronic wire transport to cooperate with the cutting equipment, due to the soft and deformable characteristics of the electronic wire, the electronic wire may bend, etc., resulting in inaccurate cutting position and inability to accurately complete the fixed-length cutting work.

[0004] At the same time, during the conveying work, multiple wire harnesses often cannot move along a straight path, which will cause the wire harnesses to tilt when they are fixed for cutting, and then the incision will be tilted, affecting the cutting quality of the wire harnesses. Summary of the invention

[0005] In order to solve the problems in the background technology, the present invention proposes a fixed-length cutting device for the production and processing of electronic wire harnesses.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A fixed-length cutting device for production and processing of electronic wire harnesses, comprising a workbench, a work frame, a work beam, a wire harness cutting assembly, a reciprocating control device and a clamping device, wherein the work frame is fixedly mounted on the workbench, and the work beam is fixedly connected to the work frame, the wire harness cutting assembly is mounted on the workbench and the work beam, the reciprocating control device is fixedly mounted on the work frame, the clamping device is fixedly mounted on the reciprocating shaft of the reciprocating control device, and two mutually symmetrical conveying and pulling structures are mounted on the work frame;

[0008] The conveying and pulling structure includes a track groove, a track block, a sliding opening, a sliding frame, a track seat, a power motor, a power shaft and a conveying roller. The track groove is opened on one side wall of the working frame, and the sliding opening is opened on the other side wall of the working frame. The track block is slidably connected in the track groove, and the sliding frame is slidably connected in the sliding opening. The track seat is slidably connected in the sliding frame. The power motor is fixedly installed on the track seat, and the power shaft is fixedly installed on the output end of the power motor. One end of the power shaft rotates through the track seat and the track block, and the conveying roller is fixedly connected to the power shaft. The two sliding frames are connected by a telescopic pipe fitting, and two control structures matching the two conveying and pulling structures are installed on the working frame.

[0009] Preferably, the control structure includes a control port, a reciprocating screw, a reciprocating wire seat, a control slot, a reciprocating screw, a reciprocating wire block, a sleeve, a sleeve rod and a torsion spring, the control port is opened on the work frame, and the reciprocating wire seat is slidably connected in the control port, the reciprocating wire seat is fixedly connected to the clamping device, and the reciprocating wire seat is sleeved on the reciprocating screw, one end of the reciprocating screw is rotatably connected in the control port, and the other end of the reciprocating screw is fixedly connected to the sleeve rod, the control slot is opened on the inner wall of the sliding port, and the reciprocating wire The block is slidably connected in the control groove, the reciprocating wire block is fixedly connected to the sliding frame, and the reciprocating wire block is sleeved on the reciprocating screw rod, one end of the reciprocating screw rod is rotatably connected to the inner wall of the control groove, and the other end of the reciprocating screw rod rotates and passes through the working frame, the other end of the reciprocating screw rod is fixedly connected to the sleeve, and the sleeve rod is rotatably connected in the sleeve, the torsion spring is sleeved on the sleeve rod, and the two ends of the torsion spring are respectively fixedly connected to the sleeve rod and the sleeve, and a fixed-point structure is installed between the reciprocating wire seat and the sleeve.

[0010] Preferably, the fixed-point structure includes a fixed-point seat, a fixed-point hole, a fixed-point rod, a fixed-point disk and a fixed-point spring, the fixed-point seat is fixedly connected to the sleeve, the fixed-point hole is opened on the reciprocating wire seat, and the fixed-point rod is slidably connected to the fixed-point hole, the fixed-point disk is fixedly connected to one end of the fixed-point rod, and the two ends of the fixed-point spring are respectively fixedly connected to the fixed-point disk and the reciprocating wire seat, a card interface is opened on a side wall of the fixed-point seat close to the fixed-point rod, and a card connection seat is slidably connected in the card interface, the card connection seat is fixedly connected to the fixed-point rod, and a card connection groove is opened on the side wall of the card connection seat, a telescopic groove is opened on the inner wall of the card interface, and a pointed telescopic block matching the card connection groove is slidably connected in the telescopic groove, and the pointed telescopic block is connected to the telescopic groove through a telescopic spring.

[0011] Preferably, two mutually symmetrical folding components are installed on the workbench, and one of the folding components is connected to the sleeve in one of the control structures, the folding component includes two movable grooves, two movable blocks, two ball screw seats, two ball screws and two folding frames, the two movable grooves are opened on the workbench, and the two movable blocks are respectively slidably connected in the two movable grooves, the two ball screw seats are respectively fixedly connected to the two movable blocks, and the two ball screw seats are respectively sleeved on the two ball screws, the two ball screws are fixedly connected, and the two folding frames are respectively installed on the two ball screw seats, the ball screw seat in one of the folding components is fixedly connected to the ball screw seat in the other folding component by a connecting rod, one of the ball screws is fixedly connected to bevel gear one, and bevel gear two is fixedly connected to the sleeve, and bevel gear one is meshed with bevel gear two.

[0012] Preferably, a protection groove is formed on the ball screw seat, a protection rod is slidably connected in the protection groove, the protection rod and the protection groove are connected via a protection spring, and the retracting frame is fixedly connected to the protection rod.

[0013] Preferably, the track block is cylindrical.

[0014] Preferably, a limiting groove is formed on the inner wall of the telescopic groove, a limiting block is slidably connected in the limiting groove, and the limiting block is fixedly connected to the pointed telescopic block.

[0015] Preferably, a plurality of feet are fixedly mounted on the lower end surface of the workbench.

[0016] The present invention has the following beneficial effects:

[0017] 1. In the present invention, the reciprocating control device operates the clamping device to pull the wire harness, and after the fixed-length delivery of the electronic wire harness is performed in coordination with the rotation of the conveying roller, the conveying roller can be operated to reversely clamp and pull the electronic wire harness with the help of the fixed-point structure and the control structure, and the electronic wire harness is smoothed, so that the electronic wire harness can be more accurately cut to a fixed length;

[0018] 2. In the present invention, after the cutting work is completed, the reciprocating control device controls the clamping device to continue to move, and at this time, the two conveying rollers can be synchronously pulled in the opposite direction to separate the cut wire harness from the waste rubber at the end point laterally by pulling. The lateral separation effectively avoids damage to the wire core inside the electronic wire harness, thereby ensuring the cutting quality of the electronic wire harness;

[0019] 3. In the present invention, when the pulling work is in progress, the dispersed electronic wire bundles can be pushed and gathered together through the meshing between bevel gear one and bevel gear two and the gathering assembly. Then, the electronic wire bundles remain inclined during the cutting process due to the dispersion, so that the cutting port can remain vertical, further ensuring the cutting quality of the electronic wire bundles. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the front three-dimensional structure of a fixed-length cutting device for producing and processing electronic wire harnesses proposed by the present invention;

[0021] Figure 2 A schematic diagram of a partial three-dimensional structure of a fixed-length cutting device for producing and processing electronic wire harnesses proposed by the present invention;

[0022] Figure 3 This is a schematic diagram of the reverse three-dimensional structure of a fixed-length cutting device for producing and processing electronic wire harnesses proposed by the present invention;

[0023] Figure 4 It is a sectional view of the side three-dimensional structure of the control structure;

[0024] Figure 5 It is a cross-sectional view of the three-dimensional structure from a top view of the control structure;

[0025] Figure 6 It is a sectional view of the three-dimensional structure of the control structure;

[0026] Figure 7 It is a sectional view of the three-dimensional structure of the fixed-point structure part;

[0027] Figure 8 It is a sectional view of the three-dimensional structure of the folded component part.

[0028] In the figure: 1 workbench, 2 work frame, 3 work beam, 4 wire harness cutting assembly, 5 reciprocating control device, 6 clamping device, 7 track groove, 8 track block, 9 sliding port, 10 sliding frame, 11 track seat, 12 power motor, 13 power shaft, 14 conveying roller, 15 control port, 16 reciprocating screw, 17 reciprocating wire seat, 18 control groove, 19 reciprocating screw, 20 reciprocating wire block, 21 sleeve, 22 sleeve rod, 23 torsion spring, 24 fixed point seat, 25 fixed point hole , 26 fixed rod, 27 fixed plate, 28 fixed spring, 29 card interface, 30 card seat, 31 card slot, 32 telescopic slot, 33 pointed telescopic block, 34 telescopic spring, 35 moving slot, 36 moving block, 37 ball screw seat, 38 ball screw, 39 retracting frame, 40 connecting rod, 41 bevel gear one, 42 bevel gear two, 43 protection slot, 44 protection rod, 45 protection spring, 46 limit slot, 47 limit block, 48 pad, 49 telescopic pipe fittings. DETAILED DESCRIPTION

[0029] Reference Figure 1 - Figure 8, a fixed-length cutting device for the production and processing of electronic wire harnesses, comprising: a workbench 1, a work frame 2, a work beam 3, a wire harness cutting assembly 4, a reciprocating control device 5 and a clamping device 6, the work frame 2 is fixedly mounted on the workbench 1, and the work beam 3 is fixedly connected to the work frame 2, the wire harness cutting assembly 4 is mounted on the workbench 1 and the work beam 3, the reciprocating control device 5 is fixedly mounted on the work frame 2, the clamping device 6 is fixedly mounted on the reciprocating shaft of the reciprocating control device 5, and two mutually symmetrical conveying and pulling structures are mounted on the work frame 2;

[0030] When the device is working, the clamping claws on the clamping device 6 clamp the exposed wire ends of the electronic wire harness, and then the reciprocating control device 5 controls the clamping device 6 to move through the reciprocating shaft, and then pulls the electronic wire harness, so that the electronic wire harness completes the fixed-length movement work, and cooperates with the wire harness cutting component 4 to complete the fixed-length cutting work of the electronic wire harness. The wire harness cutting component 4 is a device in the prior art, which has multiple blades and can complete the cutting of the electronic wire harness and the stripping of the end points. After the stripping, the end points of the electronic wire harness still have residual rubber adhered to them, and the separation and removal work can be completed by pulling;

[0031] The conveying and pulling structure includes a track groove 7, a track block 8, a sliding opening 9, a sliding frame 10, a track seat 11, a power motor 12, a power shaft 13 and a conveying roller 14. The track groove 7 is opened on one side wall of the working frame 2, and the sliding opening 9 is opened on the other side wall of the working frame 2. The track block 8 is slidably connected in the track groove 7, and the sliding frame 10 is slidably connected in the sliding opening 9. The track seat 11 is slidably connected in the sliding frame 10. The power motor 12 is fixedly installed on the track seat 11, and the power shaft 13 is fixedly installed on the output end of the power motor 12. One end of the power shaft 13 rotates through the track seat 11 and the track block 8, and the conveying roller 14 is fixedly connected to the power shaft 13. The two sliding frames 10 are connected by a telescopic pipe 49. Two control structures that match the two conveying and pulling structures are installed on the working frame 2 respectively.

[0032] The power motor 12 controls the conveying roller 14 to rotate with the pulled electronic wire harness through the power shaft 13. The two conveying rollers 14 can complete the position limiting work of the electronic wire harness, so that the electronic wire harness can be smoothly pulled to the specified position. When the moving work stops, the conveying roller 14 stops rotating, and then with the help of the sliding of the track block 8 in the track groove 7, the conveying roller 14 further clamps and pulls the electronic wire harness, and smoothes the electronic wire harness, so that the electronic wire harness can complete the fixed-length cutting work more accurately. The bending shape of the track groove 7 here enables the track block 8 to drive the two conveying rollers 14 to approach each other when moving, and then better clamp the electronic wire harness and better complete the smoothing work. The sliding of the sliding frame 10 in the sliding opening 9 and the lifting of the track seat 11 in the sliding frame 10 make the lifting changes here not interfered.

[0033] Reference Figure 4 and Figure 5 The control structure includes a control port 15, a reciprocating screw 16, a reciprocating wire seat 17, a control slot 18, a reciprocating screw 19, a reciprocating wire block 20, a sleeve 21, a sleeve rod 22 and a torsion spring 23. The control port 15 is opened on the work frame 2, and the reciprocating wire seat 17 is slidably connected in the control port 15. The reciprocating wire seat 17 is fixedly connected to the clamping device 6, and the reciprocating wire seat 17 is sleeved on the reciprocating screw 16. One end of the reciprocating screw 16 is rotatably connected in the control port 15, and the other end of the reciprocating screw 16 is fixedly connected to the sleeve rod 22. The control slot 18 is opened on the inner wall of the sliding port 9, and the reciprocating wire The block 20 is slidably connected in the control groove 18, the reciprocating wire block 20 is fixedly connected to the sliding frame 10, and the reciprocating wire block 20 is sleeved on the reciprocating screw rod 19, one end of the reciprocating screw rod 19 is rotatably connected to the inner wall of the control groove 18, and the other end of the reciprocating screw rod 19 rotates through the working frame 2, the other end of the reciprocating screw rod 19 is fixedly connected to the sleeve 21, and the sleeve rod 22 is rotatably connected in the sleeve 21, the torsion spring 23 is sleeved on the sleeve rod 22, and the two ends of the torsion spring 23 are respectively fixedly connected to the sleeve rod 22 and the sleeve 21, and a fixed point structure is installed between the reciprocating wire seat 17 and the sleeve 21;

[0034] When the clamping device 6 moves, it drives the reciprocating wire seat 17 to slide in the control port 15, which will cause the reciprocating screw 16 to rotate. At this time, since the sleeve 21 and the reciprocating screw 19 are controlled by the fixed-point structure and cannot rotate, the torsion spring 23 will be twisted when the reciprocating screw 16 drives the sleeve rod 22 to rotate, and then the torsion spring 23 is tightened. Then, when the clamping device 6 pulls the electronic wire harness to the specified position, the reciprocating wire seat 17 also moves to the specified position, so that the fixed-point structure is released, the sleeve 21 and the reciprocating screw 19 will rotate under the elastic force of the torsion spring 23, and then drive the reciprocating wire block 20 to slide in the control groove 18, and drive the sliding frame 10 and other structures to move. The sliding frame 10 can drive the track seat 11, the track block 8 and the power shaft 13 and other structures to move. When the conveying roller 14 reaches the specified position, the electric After the sub-wiring harness is smoothed and the harness cutting assembly 4 completes the cutting of the electronic harness, the reciprocating control device 5 controls the clamping device 6 to move again. At this time, the sleeve 21 is not locked. The reciprocating screw 19 and the reciprocating screw 16 rotate synchronously with the torsion spring 23, so that the conveying roller 14 and the clamping device 6 move in the opposite direction, pulling the cut electronic harness, so that the electronic harness and the rubber cut at the end point are horizontally separated. Such separation can effectively avoid damage to the inner core of the electronic harness and ensure the cutting quality of the electronic harness. Then the reciprocating control device 5 controls the clamping device 6 to move in the opposite direction for reset, and the conveying roller 14 moves in the opposite direction for reset synchronously. The device can repeat the above steps for the next round of work. In this process, the clamping device 6 releases the cut electronic harness to complete the unloading work.

[0035] Reference Figure 3 , Figure 5 , Figure 6 and Figure 7 The fixed point structure includes a fixed point seat 24, a fixed point hole 25, a fixed point rod 26, a fixed point disc 27 and a fixed point spring 28. The fixed point seat 24 is fixedly connected to the sleeve 21, the fixed point hole 25 is opened on the reciprocating wire seat 17, and the fixed point rod 26 is slidably connected to the fixed point hole 25, the fixed point disc 27 is fixedly connected to one end of the fixed point rod 26, and the two ends of the fixed point spring 28 are respectively fixedly connected to the fixed point disc 27 and the reciprocating wire seat 17, and the fixed point seat 24 is close to the sleeve 21. A card interface 29 is provided on one side wall of the near-fixed rod 26, and a card seat 30 is slidably connected in the card interface 29. The card seat 30 is fixedly connected to the fixed rod 26, and a card slot 31 is provided on the side wall of the card seat 30. A telescopic slot 32 is provided on the inner wall of the card interface 29, and a pointed telescopic block 33 matching the card slot 31 is slidably connected in the telescopic slot 32. The pointed telescopic block 33 is connected to the telescopic slot 32 via a telescopic spring 34.

[0036] When the reciprocating wire seat 17 is located in the control port 15 and is away from the torsion spring 23 for initial sliding, the clamping seat 30 is inserted into the clamping interface 29, and the pointed telescopic block 33 is inserted into the clamping groove 31 under the elastic force of the telescopic spring 34, fixing the clamping seat 30 on the fixed point seat 24, and the fixed point rod 26 connected to the clamping seat 30 is slidably connected to the reciprocating wire seat 17 through the fixed point hole 25, and the reciprocating wire seat 17 is restricted and cannot rotate. Therefore, at this time, the sleeve 21 fixedly connected to the fixed point seat 24 cannot rotate, and the reciprocating screw 16 cannot rotate either. The conveying roller 14 can stay at the specified position and rotate to cooperate with the fixed-length pulling work of the electronic wire harness. When the reciprocating wire seat 17 reaches the limit position, the elastic force of the telescopic spring 34 can be overcome by pulling the fixed point rod 26 and the clamping seat 30, and the pointed telescopic block 33 is pushed into the telescopic position with the help of the inclined surface of the pointed telescopic block 33. The sleeve 21 and the reciprocating screw 16 can rotate. When the reverse reset movement is carried out, the fixed point spring 28 can push the fixed point disk 27 with its own elastic force, and then the fixed point rod 26 and the clamping seat 30 are always away from the fixed point seat 24 when the reciprocating wire seat 17 is reset and moved, so that the reciprocating wire rod 19 can rotate with the reciprocating wire seat 16 without restriction at this time, and the conveying roller 14 can smoothly complete the reset movement work. When the reset reaches the specified position, the elastic force of the fixed point spring 28 is completely released, and the fixed point rod 26 and the clamping seat 30 are driven by the reciprocating wire seat 17 again. The clamping seat 30 is inserted into the clamping interface 29 again, completing the connection work between the clamping slot 31 and the pointed telescopic block 33. The device is reset and can proceed to the next round of work.

[0037] Reference Figure 2 , Figure 5 , Figure 6and Figure 8 Two symmetrical folding components are installed on the workbench 1, and one of the folding components is connected to the sleeve 21 in one of the control structures. The folding components include two moving grooves 35, two moving blocks 36, two ball screw seats 37, two ball screws 38 and two folding frames 39. The two moving grooves 35 are both opened on the workbench 1, and the two moving blocks 36 are respectively slidably connected in the two moving grooves 35, the two ball screw seats 37 are respectively fixedly connected to the two moving blocks 36, and the two ball screw seats 37 are respectively sleeved on the two ball screws 38, the two ball screws 38 are fixedly connected, and the two folding frames 39 are respectively installed on the two ball screw seats 37. The ball screw seat 37 in one folding component is fixedly connected to the ball screw seat 37 in the other folding component through a connecting rod 40, one of the ball screws 38 is fixedly connected to a bevel gear 1 41, and a bevel gear 2 42 is fixedly connected to the sleeve 21, and the bevel gear 1 41 is meshed with the bevel gear 2 42;

[0038] Here, by means of the rotation of the sleeve 21, while the electronic wire harness is being smoothed, the meshing of the bevel gear 1 41 and the bevel gear 2 42 drives a ball screw 38 in one of the retracting assemblies to rotate, and then through the connection between the ball screw 38 and the ball screw seat 37, the fixed connection between the ball screws 38 and the connection of the connecting rod 40, the four retracting frames 39 retract and merge the electronic wire harness from both ends of the cutting area, so as to avoid the electronic wire harness being too loose and remaining in an inclined state during the cutting process, and further improve the fixed-length cutting quality of the electronic wire harness;

[0039] Reference Figure 8 A protection groove 43 is formed on the ball screw seat 37, a protection rod 44 is slidably connected in the protection groove 43, the protection rod 44 and the protection groove 43 are connected by a protection spring 45, and the retracting frame 39 is fixedly connected to the protection rod 44;

[0040] With the help of the elastic force of the protection spring 45, the retracting frame 39 can be prevented from over-extruding the electronic wiring harness, so that the retracting work can be completed more safely;

[0041] Reference Figure 2 , the track block 8 is cylindrical;

[0042] The cylindrical track block 8 can slide better in the curved track groove 7, ensuring that the sliding and lifting transfer work can be completed more smoothly;

[0043] Reference Figure 7 A limiting groove 46 is formed on the inner wall of the telescopic groove 32, a limiting block 47 is slidably connected in the limiting groove 46, and the limiting block 47 is fixedly connected to the pointed telescopic block 33;

[0044] The limit block 47 can effectively prevent the pointed telescopic block 33 from extending too far, so that the card socket 30 cannot be inserted into the card interface 29, thereby ensuring the smooth operation of the device;

[0045] Reference Figure 1 , a plurality of feet 48 are fixedly mounted on the lower end surface of the workbench 1;

[0046] The feet 48 make the placement and operation of the device more stable.

[0047] Working principle: one end of multiple wire harnesses is placed between two conveying rollers 14, ready for batch production. The power motor 12 controls the conveying roller 14 to rotate with the pulled electronic wire harness through the power shaft 13. The two conveying rollers 14 can complete the position limiting work of the electronic wire harness, so that the electronic wire harness can be smoothly pulled to the specified position. The clamping claws on the clamping device 6 clamp the exposed wire ends of the electronic wire harness, and then the reciprocating control device 5 controls the movement of the clamping device 6 through the reciprocating shaft to pull the electronic wire harness so that the electronic wire harness completes the fixed-length movement work. When the clamping device 6 moves, it drives the reciprocating wire seat 17 to slide in the control port 15, which will cause the reciprocating screw 16 to rotate. At this time, since the sleeve 21 and the reciprocating screw 19 are controlled by the fixed-point structure and cannot rotate, the torsion spring 23 will be twisted when the reciprocating screw 16 drives the sleeve rod 22 to rotate, so that the torsion spring 23 is tightened;

[0048] When the reciprocating wire seat 17 is located in the control port 15 and is away from the torsion spring 23 for initial sliding, the clamping seat 30 is inserted into the clamping interface 29, and the pointed telescopic block 33 is inserted into the clamping groove 31 under the elastic force of the telescopic spring 34, so that the clamping seat 30 is fixed on the fixed point seat 24, and the fixed point rod 26 connected to the clamping seat 30 is slidably connected to the reciprocating wire seat 17 through the fixed point hole 25, and the reciprocating wire seat 17 is restricted and cannot rotate, so at this time, the sleeve 21 fixedly connected to the fixed point seat 24 cannot rotate, and the reciprocating screw 16 cannot rotate either, and the conveying roller 14 can stay at the specified position and rotate to cooperate with the fixed-length pulling work of the electronic wire harness, and then when the clamping device 6 pulls the electronic wire harness to the specified position;

[0049] After the reciprocating wire seat 17 reaches the limit position, the elastic force of the telescopic spring 34 can be overcome by pulling the fixed rod 26 and the clamping seat 30, and the pointed telescopic block 33 can be pushed into the telescopic groove 32 with the help of the inclined surface of the pointed telescopic block 33, and then the clamping seat 30 is disengaged from the clamping interface 29, and the rotation restriction on the sleeve 21 and other structures is released. The sleeve 21 and the reciprocating screw rod 19 can rotate. The sleeve 21 and the reciprocating screw rod 19 will rotate under the elastic force of the torsion spring 23, driving the reciprocating wire block 20 to slide in the control groove 18, and driving the sliding frame 10 and other structures to move. The sliding frame 10 can drive the track seat 11, the track block 8 and the power shaft 13 and other structures to move. When the conveying roller 14 reaches the specified position, the electronic wire harness is smoothed, and the wire harness cutting assembly is After the cutting of the electronic wire harness is completed, the reciprocating control device 5 controls the clamping device 6 to move again. At this time, the sleeve 21 is not locked. With the help of the torsion spring 23, the reciprocating screw 19 and the reciprocating screw 16 rotate synchronously, so that the conveying roller 14 and the clamping device 6 move in the opposite direction. At this time, the conveying roller 14 stops rotating, and then with the help of the sliding of the track block 8 in the track groove 7, the conveying roller 14 further clamps and pulls the electronic wire harness, and smoothes the electronic wire harness, so that the electronic wire harness can complete the fixed-length cutting work more accurately. Here, the bending shape of the track groove 7 allows the track block 8 to drive the two conveying rollers 14 to approach each other when moving, and then better clamp the electronic wire harness, better complete the smoothing work, and ensure the cutting quality of the electronic wire harness;

[0050] Then the reciprocating control device 5 controls the clamping device 6 to move in the reverse direction for resetting, and the conveying roller 14 moves in the reverse direction synchronously for resetting. When the reverse resetting movement is in progress, the fixed point spring 28 can push the fixed point disk 27 with its own elastic force, and then the fixed point rod 26 and the clamping seat 30 are always away from and do not contact the fixed point seat 24 when the reciprocating wire seat 17 is resetting and moving, so that the reciprocating screw rod 19 can now rotate unrestrictedly along with the reciprocating screw 16 for resetting, and the conveying roller 14 can smoothly complete the resetting and moving work. When the resetting reaches the specified position, the elastic force of the fixed point spring 28 is completely released, and the fixed point rod 26 and the clamping seat 30 are driven by the reciprocating wire seat 17 again, and the clamping seat 30 is inserted into the clamping interface 29 again, completing the connection work between the clamping slot 31 and the pointed telescopic block 33. The device is reset and can proceed to the next round of work. In this process, the clamping device 6 releases the cut electronic wire harness to complete the unloading work;

[0051] When the pulling and smoothing work is in progress, with the help of the rotation of the sleeve 21, while the electronic wire harness is being smoothed, the meshing of bevel gear 1 41 and bevel gear 2 42 drives a ball screw 38 in one of the retracting assemblies to rotate, and then through the connection between the ball screw 38 and the ball screw seat 37, the fixed connection between the ball screws 38 and the connection of the connecting rod 40, the four retracting frames 39 are used to retract and merge the electronic wire harness from both ends of the cutting area, so as to avoid the electronic wire harness from being too loose and remaining in a tilted state during the cutting process, thereby further improving the fixed-length cutting quality of the electronic wire harness.

Claims

1. A fixed-length cutting device for the production and processing of electronic wire harnesses, comprising a workbench (1), a work frame (2), a work beam (3), a wire harness cutting assembly (4), a reciprocating control device (5) and a clamping device (6), characterized in that: The work frame (2) is fixedly mounted on the workbench (1), and the work beam (3) is fixedly connected to the work frame (2), the wire harness cutting assembly (4) is mounted on the workbench (1) and the work beam (3), the reciprocating control device (5) is fixedly mounted on the work frame (2), the clamping device (6) is fixedly mounted on the reciprocating shaft of the reciprocating control device (5), and two mutually symmetrical conveying and pulling structures are mounted on the work frame (2); The conveying and pulling structure comprises a track groove (7), a track block (8), a sliding opening (9), a sliding frame (10), a track seat (11), a power motor (12), a power shaft (13) and a conveying roller (14); the track groove (7) is opened on one side wall of the working frame (2), and the sliding opening (9) is opened on the other side wall of the working frame (2); the track block (8) is slidably connected in the track groove (7), and the sliding frame (10) is slidably connected in the sliding opening (9); the track seat (11) is slidably connected in In the sliding frame (10), the power motor (12) is fixedly mounted on the track seat (11), and the power shaft (13) is fixedly mounted on the output end of the power motor (12), one end of the power shaft (13) rotates through the track seat (11) and the track block (8), and the conveying roller (14) is fixedly connected to the power shaft (13), the two sliding frames (10) are connected via a telescopic pipe (49), and the working frame (2) is equipped with two control structures respectively matching the two conveying pulling structures; The control structure comprises a control port (15), a reciprocating screw (16), a reciprocating wire seat (17), a control slot (18), a reciprocating screw (19), a reciprocating wire block (20), a sleeve (21), a sleeve rod (22) and a torsion spring (23); the control port (15) is opened on the working frame (2), and the reciprocating wire seat (17) is slidably connected in the control port (15); the reciprocating wire seat (17) is fixedly connected to the clamping device (6), and the reciprocating wire seat (17) is sleeved on the reciprocating screw (16); one end of the reciprocating screw (16) is rotatably connected in the control port (15), and the other end of the reciprocating screw (16) is fixedly connected to the sleeve rod (22); the control slot (18) is opened on the inner wall of the sliding port (9), and the reciprocating wire seat (17) is sleeved on the reciprocating screw (16); The wire block (20) is slidably connected in the control groove (18), the reciprocating wire block (20) is fixedly connected to the sliding frame (10), and the reciprocating wire block (20) is sleeved on the reciprocating wire rod (19), one end of the reciprocating wire rod (19) is rotatably connected to the inner wall of the control groove (18), and the other end of the reciprocating wire rod (19) rotates through the working frame (2), the other end of the reciprocating wire rod (19) is fixedly connected to the sleeve (21), and the sleeve rod (22) is rotatably connected in the sleeve (21), the torsion spring (23) is sleeved on the sleeve rod (22), and the two ends of the torsion spring (23) are respectively fixedly connected to the sleeve rod (22) and the sleeve (21), and a fixed point structure is installed between the reciprocating wire seat (17) and the sleeve (21); The fixed-point structure comprises a fixed-point seat (24), a fixed-point hole (25), a fixed-point rod (26), a fixed-point disc (27) and a fixed-point spring (28); the fixed-point seat (24) is fixedly connected to the sleeve (21); the fixed-point hole (25) is opened on the reciprocating wire seat (17); the fixed-point rod (26) is slidably connected to the fixed-point hole (25); the fixed-point disc (27) is fixedly connected to one end of the fixed-point rod (26); and the two ends of the fixed-point spring (28) are respectively fixedly connected to the fixed-point disc (27) and the reciprocating wire seat (17); the fixed-point seat (24) is fixedly connected to the sleeve (21); the fixed-point hole (25) is opened on the reciprocating wire seat (17); and the fixed-point disc (27) is slidably connected to the fixed-point hole (25); and the fixed-point disc (27) is fixedly connected to one end of the fixed-point rod (26); and the two ends of the fixed-point spring (28) are respectively fixedly connected to the fixed-point disc (27) and the reciprocating wire seat (17). ) A card interface (29) is formed on a side wall close to the fixed rod (26), and a card seat (30) is slidably connected in the card interface (29); the card seat (30) is fixedly connected to the fixed rod (26), and a card slot (31) is formed on the side wall of the card seat (30); a telescopic slot (32) is formed on the inner wall of the card interface (29), and a pointed telescopic block (33) matching the card slot (31) is slidably connected in the telescopic slot (32); the pointed telescopic block (33) is connected to the telescopic slot (32) via a telescopic spring (34).

2. The cut-to-length equipment for producing and processing electronic wire harnesses according to claim 1, characterized in that: The workbench (1) is provided with two symmetrical retracting assemblies, and one of the retracting assemblies is connected to a sleeve (21) in one of the control structures. The retracting assemblies include two moving grooves (35), two moving blocks (36), two ball screw seats (37), two ball screws (38) and two retracting frames (39). The two moving grooves (35) are both opened on the workbench (1), and the two moving blocks (36) are respectively slidably connected in the two moving grooves (35). The two ball screw seats (37) are respectively fixedly connected to the two moving blocks (36). The ball screw seats (37) are respectively sleeved on two ball screws (38), the two ball screws (38) are fixedly connected, and the two retracting frames (39) are respectively installed on the two ball screw seats (37). The ball screw seats (37) in one of the retracting components are fixedly connected to the ball screw seats (37) in the other retracting component via a connecting rod (40), one of the ball screws (38) is fixedly connected to a bevel gear 1 (41), and a bevel gear 2 (42) is fixedly connected to the sleeve (21), and the bevel gear 1 (41) is meshed with the bevel gear 2 (42).

3. The cut-to-length equipment for producing and processing electronic wire harnesses according to claim 2, characterized in that: The ball screw seat (37) is provided with a protection groove (43), a protection rod (44) is slidably connected in the protection groove (43), the protection rod (44) and the protection groove (43) are connected via a protection spring (45), and the folding frame (39) is fixedly connected to the protection rod (44).

4. The cut-to-length equipment for producing and processing electronic wire harnesses according to claim 1, characterized in that: The track block (8) is cylindrical.

5. The cut-to-length equipment for producing and processing electronic wire harnesses according to claim 1, characterized in that: A limiting groove (46) is formed on the inner wall of the telescopic groove (32), a limiting block (47) is slidably connected in the limiting groove (46), and the limiting block (47) is fixedly connected to the pointed telescopic block (33).

6. The cut-to-length equipment for producing and processing electronic wire harnesses according to claim 1, characterized in that: A plurality of feet (48) are fixedly mounted on the lower end surface of the workbench (1).

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