Laser cutting and stripping mechanism

Abstract

The utility model discloses a laser cutting and stripping mechanism which comprises a rack used for supporting a device; the laser emitting mechanism comprises two laser emitters with opposite emitting ends, and is used for emitting laser to cut the wire when the wire passes through the two laser emitters; the clamping jaw traction mechanism is positioned in front of the laser transmitting mechanism and is used for clamping the end part of the wire and pulling the end part of the wire to pass through the space between the two laser transmitters; and the opening and cutting mechanism is positioned behind the laser emitting mechanism. Through the cooperation of the laser emission mechanism and the opening and cutting mechanism, the requirement for the notch precision of a laser transmitter can be effectively reduced in the small wire head stripping process, the damage to the guide internal structure is avoided, meanwhile, the requirement for the size of an opening can be ensured, reasonable design and effective cooperation of all parts can be ensured, the head stripping and cutting efficiency is improved, and the production cost is reduced. And the risk of damage to the wire is reduced to the greatest extent.

Description

Technical Field

[0001] The utility model relates to the technical field of wire stripping heads, in particular to a laser cutting and stripping mechanism. Background Art

[0002] Twisted-wire pin connectors rely on their unique structural design to provide stable electrical performance under extreme conditions. The core of twisted-wire pins lies in their unique construction, which not only ensures the connector's reliability and durability but also allows them to be used in precision instruments and equipment in a variety of harsh environments. Twisted-wire pins are constructed from two layers of copper alloy wire, twisted together with varying amounts of wire. This design imparts excellent elasticity and toughness to the pins. One or both ends of the pin feature a bulge. When the pin enters the socket, the bulge deforms due to the interference fit, providing the necessary contact pressure. As the pin is pressed into the socket, the deformation of the bulge creates multiple points of contact with the socket wall, enhancing the reliability of the electrical connection. The ends of the twisted-wire pin are secured together by welding or other means to prevent loosening during use. These characteristics make twisted-wire pin connectors ideal for applications requiring high reliability and durability, such as aerospace, military equipment, marine equipment, and other demanding industrial applications. These environments are often subject to vibration, shock, and temperature fluctuations, challenges that twisted-wire pins are designed to withstand.

[0003] Currently, during the production of twisted wire pin connectors, it is necessary to remove a certain length of the insulation layer from the wire head to facilitate the subsequent crimping process. Traditional wire stripping methods rely on wire strippers or blade-type stripping machines, which are not suitable for mass production and have low processing efficiency. A patent for a laser wire stripping device with publication number CN213497203U introduces a new solution. The device includes a frame, a laser emitting assembly, a drive assembly, and a jig. The laser emitting assembly is mounted on the frame and has a first emitting section and a second emitting section, which emit lasers in opposite directions. The drive assembly is also mounted on the frame, and the jig is mounted on the drive assembly for clamping the wire. The drive assembly is responsible for driving the jig to move between the first emitting section and the second emitting section, so that the laser emitted by the emitting section can act on the wire.

[0004] While the aforementioned technology improves wire stripping efficiency through the use of laser emitting assemblies, there are some practical challenges with relying solely on laser emitting assemblies to cut wires. In particular, the precision requirements for parameters such as laser power, frequency, and pulse width are extremely high. When processing very fine stranded pin connector wires, this can easily lead to internal wire damage or incisions that are too small, directly impacting stripping efficiency. Therefore, a cutting device and method specifically designed for wire stripping are needed to address these issues and ensure efficient and safe stripping. Utility Model Content

[0005] The purpose of the present utility model is to overcome the above-mentioned technical deficiencies and propose a laser cutting mechanism to solve the technical problems in the prior art that the precision requirements for parameters such as laser power, frequency and pulse width are very high, and when processing very thin stranded wire pin connector wires, it is easy to cause internal damage to the wires or the incision is too small.

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

[0007] The utility model provides a laser cutting and peeling mechanism, comprising:

[0008] a frame for supporting the device;

[0009] The laser emitting mechanism includes two laser transmitters with emitting ends facing each other, and is used to emit laser to cut the wire when the wire passes through the two ends;

[0010] a clamping claw pulling mechanism, located in front of the laser emitting mechanism, for clamping the end of the wire and pulling the end of the wire through between the two laser transmitters;

[0011] an opening and cutting mechanism, located behind the laser emitting mechanism, for enlarging the incision opened by the laser transmitter for the wire and cutting the wire; and

[0012] The wire pulling mechanism is located behind the opening and cutting mechanism and can be arranged side by side with the opening and cutting mechanism, and is used for pulling the wire after the incision is enlarged.

[0013] In some embodiments, the clamping claw traction mechanism includes a first support frame, a Y-axis screw linear module, an X-axis screw linear module, and a clamping claw assembly. The first support frame is arranged on the frame, the Y-axis screw linear module is arranged on the top of the first support frame, and the X-axis screw linear module is arranged on the slide of the Y-axis screw linear module.

[0014] In some embodiments, the clamping jaw assembly includes a mounting frame, a traction clamping jaw and a clamping cylinder. The mounting frame is arranged on the slide of the X-axis screw linear module. The number of the traction clamping jaws is two, which are symmetrically arranged in the mounting frame. The opposite sides of the two traction clamping jaws are provided with positioning grooves adapted to the wires. The clamping cylinder is arranged on the top of the mounting frame, and its telescopic end passes through the mounting frame and is connected to the traction clamping jaw located above.

[0015] In some embodiments, the opening and cutting mechanism includes a second support frame, a transverse screw linear module, a pneumatic parallel clamp, a transverse mounting block and an opening and cutting tool. The second support frame is arranged on the frame, the transverse screw linear module is arranged on the top of the second support frame, and the pneumatic parallel clamp is arranged on the slide of the telescopic transverse screw linear module. The number of the transverse mounting blocks is two, and they are arranged oppositely on the two slides of the pneumatic parallel clamp. The number of the opening and cutting tools is two, and the blades are arranged oppositely in the mounting grooves of the two transverse mounting blocks.

[0016] In some embodiments, the blade of the opening and cutting tool includes an opening section and a cutting section. When the two opening and cutting tools are closed, a gap is provided between the two opening sections for enlarging the incision.

[0017] In some embodiments, the wire pulling mechanism includes a linear guide rail, an extension support frame and a clamping mechanism, the linear guide rail is arranged on the frame, the extension support frame includes an extension frame and a support platform, the tail end of the extension frame is arranged on the slide of the linear guide rail, and the support platform is arranged horizontally at the front end of the extension frame, and the clamping mechanism includes a first clamping assembly and a second clamping assembly, and the second clamping assembly and the first clamping assembly are arranged on the support platform in a front-to-back staggered manner.

[0018] In some embodiments, the second clamping assembly and the first clamping assembly both include pneumatic fingers, a clamping mount, a docking port, and a clamping block. The pneumatic fingers are arranged on the support table. There are two clamping mounts, which are respectively connected to the two clamping jaws of the pneumatic fingers through the docking ports arranged on the back thereof. There are two clamping blocks, which are arranged opposite to each other on the two clamping mounts.

[0019] In some embodiments, the traction clamp includes a clamping block and a pointed clamping mouth, and the pointed clamping mouth is arranged on a side of the clamping block close to the wire pulling mechanism.

[0020] In some embodiments, a receiving groove is further included, which is arranged on the frame and is located directly below the wire pulling mechanism for receiving the wires that have been stripped and cut.

[0021] In some embodiments, the laser emitting mechanism further includes two symmetrically arranged hand-cranked screw lifting mechanisms, the two hand-cranked screw lifting mechanisms are symmetrically arranged on the frame, and the two laser transmitters are respectively arranged on the lifting platforms of the two hand-cranked screw lifting mechanisms.

[0022] Compared with the existing technology, the laser cutting mechanism provided by the utility model can effectively reduce the cutting accuracy requirements of the laser transmitter during the stripping process of small wires through the coordination of the laser emitting mechanism with the opening and cutting mechanism, avoid damaging the internal structure of the guide, and at the same time ensure that the size of the opening meets the requirements. The reasonable design and effective coordination of various parts not only improve the efficiency of stripping and cutting, but also minimize the risk of damage to the wires. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a laser cutting and peeling mechanism provided by an embodiment of the utility model;

[0024] Figure 2 This utility model Figure 1 A schematic diagram of a partial three-dimensional structure of a laser cutting and peeling mechanism;

[0025] Figure 3 This utility model Figure 1 A schematic diagram of the three-dimensional structure of a wire straightening mechanism of a laser cutting and stripping mechanism;

[0026] Figure 4 This utility model Figure 3 A schematic diagram of the three-dimensional structure of a wire straightening mechanism of a laser cutting and stripping mechanism from another perspective;

[0027] Figure 5 This is a three-dimensional structural diagram of a clamping claw traction mechanism of a laser cutting and peeling mechanism in the utility model 1;

[0028] Figure 6 This utility model Figure 5 A schematic diagram of the three-dimensional structure of a clamping claw traction mechanism of a laser cutting mechanism from another perspective;

[0029] Figure 7 This utility model Figure 1 A schematic diagram of the three-dimensional structure of an opening and a cutting mechanism of a laser cutting mechanism;

[0030] Figure 8 This utility model Figure 7 Schematic diagram of the exploded structure of the pneumatic parallel clamp and transverse mounting block of a laser cutting mechanism;

[0031] Figure 9 This utility model Figure 8 Schematic diagram of the exploded structure of the pneumatic parallel clamp and transverse mounting block of a laser cutting mechanism from another perspective;

[0032] Figure 10 This is a three-dimensional structural diagram of a wire pulling mechanism of a laser cutting and stripping mechanism in the utility model 1;

[0033] Figure 11 This utility model Figure 10 A schematic diagram of the three-dimensional structure of a wire pulling mechanism of a laser cutting and stripping mechanism from another perspective;

[0034] Figure 12 This utility model Figure 10 A schematic diagram of the exploded structure of the pneumatic fingers and clamping mount of a laser cutting mechanism;

[0035] Figure 13 This utility model Figure 12 Schematic diagram of the exploded structure of the pneumatic fingers and clamping mount of a laser cutting mechanism from another perspective;

[0036] Figure 14 This utility model Figure 1 A schematic diagram of the three-dimensional structure of a guide frame of a laser cutting mechanism;

[0037] Figure 15 This is a schematic diagram of the connection structure between the hand-cranked screw lifting mechanism and the laser transmitter of a laser cutting and peeling mechanism in the utility model 1;

[0038] Description of reference numerals:

[0039] 1. Frame;

[0040] 2. Guide frame; 201. Placement frame; 202. Guide positioning frame; 203. Guide positioning hole;

[0041] 3. Wire-in straightening mechanism; 31. Support structure; 310. Vertical plate; 311. Support plate; 312. L-shaped top support; 33. Fixed straightening portion; 331. Fixed seat; 332. Fixed straightening wheel; 32. Wire limiting portion; 320. L-shaped mounting seat; 321. Threading slot; 322. Threading plate; 323. Threading hole; 34. Adjustable straightening portion; 340. Support plate; 341. L-shaped fixing bracket; 342. Rotating handle; 343. Arc-shaped push-pull portion; 344. Push-pull rod; 345. Lifting limit rod; 346. Lifting seat; 347. Lifting straightening wheel;

[0042] 4. Gripping jaw traction mechanism; 401. First support frame; 402. Y-axis screw linear module; 403. X-axis screw linear module; 404. Mounting frame; 405. Traction gripper; 4050. Clamping block; 4051. Pointed clamping nozzle; 406. Clamping cylinder;

[0043] 5. Laser emitting mechanism; 501. Hand-cranked screw lifting mechanism; 502. Laser transmitter;

[0044] 6. Opening and cutting mechanism; 601. Second support frame; 602. Horizontal screw linear module; 603. Pneumatic parallel clamp; 604. Horizontal mounting block; 605. Opening and cutting tool; 6050. Opening section; 6051. Cutting section;

[0045] 7. Wire pulling mechanism; 71. Linear guide rail; 72. Extension support frame; 720. Extension frame; 721. Support platform; 73. Clamping mechanism; 730. First clamping assembly; 7300. Pneumatic finger; 7301. Clamping mounting seat; 7302. Docking port; 7303. Clamping block; 731. Second clamping assembly;

[0046] 8. Receiving groove. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0048] In order to solve the technical problems in the existing technology that the precision requirements for parameters such as laser power, frequency and pulse width are very high, and when processing very thin stranded wire pin connector wires, it is easy to cause internal damage to the wires or the incision is too small, the utility model provides a laser cutting mechanism that can ensure that the incision size meets the requirements without causing internal damage to the wires.

[0049] It should be noted that the laser cutting mechanism described in the present invention is used for but not limited to wire stripping and cutting, etc. For the sake of convenience, in the present invention, only a laser cutting mechanism applied to a wire stripping and cutting device is used as an example for explanation. The principle of a laser cutting mechanism applied to other types of equipment is essentially the same as the principle applied to a wire stripping and cutting device, and will not be repeated here.

[0050] See also Figure 1 and Figure 2 , Figure 1 and Figure 2 This is a structural diagram of a laser cutting mechanism in an embodiment of the present invention, which includes a frame 1, a laser emitting mechanism 5, a wire straightening mechanism 3, a clamping claw traction mechanism 4, an opening and cutting mechanism 6 and a wire pulling mechanism 7.

[0051] In this embodiment, the frame 1 is used to support the device. The laser emitting mechanism 5 includes two laser transmitters 502 with emitting ends arranged opposite to each other, which are used to emit lasers to cut the wire when the wire passes through the two ends. The wire straightening mechanism 3 is located in front of the laser emitting mechanism 5, and is used to straighten the wire when it passes through. The clamping claw traction mechanism 4 is located between the wire straightening mechanism 3 and the laser emitting mechanism 5, and is used to clamp the end of the wire passing through the wire straightening mechanism 3, and to pull the end of the wire through between the two laser transmitters 502. The opening and cutting mechanism 6 is located behind the laser emitting mechanism 5, and is used to expand the incision opened by the laser transmitter 502 and cut the wire. The wire pulling mechanism 7 is located behind the opening and cutting mechanism 6, and can be arranged side by side with the opening and cutting mechanism 6, and is used to pull the wire after the incision is expanded. By sequentially designing the wire straightening mechanism 3, the clamping traction mechanism 4, the laser emitting mechanism 5, the opening and cutting mechanism 6 and the wire pulling mechanism 7 on the frame 1, the clamping traction mechanism 4 can be used to pull the front end of the wire to between the two laser transmitters 502 of the laser emitting mechanism 5 to complete the laser cutting work. Before that, the wire straightening mechanism 3 can be used to straighten the guide, and then the opening and cutting mechanism 6 can be used to open the incision. Thus, through the secondary expansion of the opening and cutting mechanism 6, the cutting accuracy requirements for the laser transmitter 502 can be reduced, and damage to the internal structure of the guide can be avoided. At the same time, it can be ensured that the size of the opening meets the requirements. Finally, the guide is pulled out by the wire pulling mechanism 7, and the opening and cutting mechanism 6 can be used to cut the wire.

[0052] In one embodiment, see Figure 14 , also includes a guide frame 2, which is placed on the side of the frame 1, and includes a placement frame 201, a guide positioning frame 202 and a guide positioning hole 203. The number of the guide positioning frames 202 is multiple, and they are mounted on the two side walls of the placement frame 201. The number of the guide positioning holes 203 is multiple, and they are equidistantly arranged on the guide positioning frame 202.

[0053] In this embodiment, the placement frame 201 can place six wire bobbins at the same time, and the six wire bobbins are placed in two rows therein. There are two guide positioning frames 202, corresponding to the two rows of wire bobbins respectively. Each guide positioning frame 202 is provided with three guide positioning holes 203, and the three guide positioning holes 203 correspond to a single wire bobbin in each row respectively. The wires on the wire bobbins pass through the corresponding guide positioning holes 203 and enter the wire straightening mechanism 3, thereby avoiding mutual entanglement between the guides.

[0054] Furthermore, it also includes a receiving groove 8, which is arranged on the frame 1 and is located directly below the wire pulling mechanism 7. The receiving groove 8 can be used to receive the wires that have been stripped and cut.

[0055] In one embodiment, see Figure 3 and Figure 4 The incoming line straightening mechanism 3 includes a supporting structure 31 and a straightening mechanism, and the straightening mechanism is arranged on one side of the top of the supporting structure 31.

[0056] Furthermore, the support structure 31 includes a vertical plate 310, a support plate 311 and an L-shaped top support member 312. The vertical plate 310 is arranged on the frame 1, and the support plate 311 is arranged on the side of the vertical plate 310 and connected to the top of the frame 1. The support of the vertical plate 310 can be improved by the support plate 311. The L-shaped top support member 312 is arranged on one side of the top of the vertical plate 310. The L-shaped top support member 312 is used to support the straightening mechanism.

[0057] Furthermore, the straightening mechanism includes a fixed straightening portion 33 and an adjustable straightening portion 34 .

[0058] Furthermore, the fixed straightening portion 33 includes a fixed seat 331 and a fixed straightening wheel 332. The fixed seat 331 is arranged on the top of the L-shaped top support member 312. The number of the fixed straightening wheels 332 is multiple and is equidistantly and rotatably arranged on the front side of the fixed seat 331. In this embodiment, the number of the fixed straightening wheels 332 is five, and the guide passes through the five fixed straightening wheels 332 in sequence.

[0059] Furthermore, the adjustment and straightening portion 34 includes a lifting adjustment component and a lifting and straightening component, and the lifting adjustment component is used to control the lifting and lowering of the lifting and straightening component.

[0060] The lifting adjustment assembly includes a support plate 340, an L-shaped fixing frame 341, a rotating handle 342, an arc-shaped push-pull portion 343 and a push-pull rod 344. The support plate 340 is arranged on the back of the fixing seat 331, the L-shaped fixing frame 341 is arranged on the front side of the top of the support plate 340, and the rotating handle 342 is rotatably arranged on the front side of the L-shaped fixing frame 341. One end of the arc-shaped push-pull portion 343 is hinged to the rotation point of the rotating handle 342, and the other end is hinged to the top of the push-pull rod 344. The push-pull rod 344 is telescopically passable through the L-shaped fixing frame 341, so that the push-pull rod 344 in the L-shaped fixing frame 341 can be pushed and pulled by rotating the rotating handle 342 using the arc-shaped push-pull portion 343, so that the height can be switched. It should be noted that the position fixation of the rotating handle 342 is achieved by friction.

[0061] Furthermore, the lifting and straightening assembly includes a lifting limit rod 345, a lifting seat 346 and a lifting and straightening wheel 347. There are two lifting limit rods 345, which are symmetrically arranged on the top of the fixed seat 331. The lifting seat 346 is liftable and is fitted on the outside of the two lifting limit rods 345, and the top is connected to the bottom end of the push-pull rod 344, so that its lifting and lowering can be controlled by lifting and lowering the push-pull rod 344. There are multiple lifting and straightening wheels 347, which are rotatably arranged on the front side of the lifting seat 346. In this embodiment, there are four lifting and straightening wheels 347. The lifting and straightening wheels 347 are staggered with the fixed straightening wheels 332, and both are provided with wire grooves adapted to the wires. The number of wire grooves is adapted to the number of wires, which is six.

[0062] Specifically, the working principle of the straightening mechanism is: first, the lifting and straightening assembly is raised to the highest point by turning the rotating handle 342 upwards, and the wire is pulled to pass through each fixed straightening wheel 332 of the fixed straightening part 33 and embedded in the corresponding wire groove. Then, the rotating handle 342 is turned downwards to control the lifting and straightening assembly to descend until the wire groove of each lifting and straightening wheel 347 thereon contacts the corresponding wire, thereby guiding it to pass between the lifting and straightening wheel 347 and the fixed straightening wheel 332 to achieve the straightening work on it.

[0063] Furthermore, the wire-in straightening mechanism 3 also includes a wire-in limiting portion 32, which can limit the guide entering the straightening mechanism. The wire-in limiting portion 32 includes an L-shaped mounting seat 320, a through groove 321, a threading plate 322 and a threading hole 323. The L-shaped mounting seat 320 is arranged on the other side of the top of the vertical plate 310, and the through groove 321 is arranged at the top center of the L-shaped mounting seat 320, and corresponds to the docking axis of the fixed straightening wheel 332 and the lifting straightening wheel 347, so as to facilitate the guide to enter the straightening mechanism from the through groove 321. The threading plate 322 is arranged on the side of the L-shaped mounting seat 320 by bolts. The number of the threading holes 323 is multiple, and is equidistantly arranged on the threading plate 322 and corresponds to the through groove 321. In this embodiment, the number of the threading holes 323 is six.

[0064] With this design, the six wire holes 323 can be used to position and limit the six wires, which can effectively prevent them from being separated during straightening.

[0065] In one embodiment, see Figure 5 and Figure 6The clamping claw traction mechanism 4 includes a first support frame 401, a Y-axis screw linear module 402, an X-axis screw linear module 403, and a clamping claw assembly. The first support frame 401 is set on the frame 1, the Y-axis screw linear module 402 is set on the top of the first support frame 401, and the X-axis screw linear module 403 is set on the slide of the Y-axis screw linear module 402.

[0066] Such a design allows the clamping jaw assembly to move in the X and Y axis directions to the left and right of the Y-axis lead screw linear module 402 and the X-axis lead screw linear module 403, so that the front end of the guide can be accurately sent between the two laser transmitters 502 to complete the laser cutting work.

[0067] Furthermore, the clamping jaw assembly includes a mounting frame 404, a traction clamping jaw 405 and a clamping cylinder 406. The mounting frame 404 is arranged on the slide of the X-axis screw linear module 403. There are two traction clamping jaws 405, which are symmetrically arranged in the mounting frame 404. The opposite sides of the two traction clamping jaws 405 are provided with positioning grooves adapted to the wires. The clamping cylinder 406 is arranged at the top of the mounting frame 404, and its telescopic end passes through the mounting frame 404 and is connected to the traction clamping jaw 405 located above.

[0068] In this embodiment, the mounting frame 404 is a rectangular frame, and the two traction clamps 405 are located in the rectangular frame, wherein the lower traction clamp 405 is installed on the inner bottom wall of the rectangular frame, so that the upper traction clamp 405 can be raised and lowered in a small range by controlling the extension and contraction of the clamping cylinder 406, thereby completing the clamping and loosening effect of the guide. It should be noted that the groove height of the rectangular frame meets the requirements for the lifting and lowering of the traction clamp 405. In addition, the positioning groove on the traction clamp 405 is slightly smaller than the diameter of the wire, so that when it is tightened, the positioning groove can play a limiting role when it is loosened to avoid deviation.

[0069] In one embodiment, see Figure 7-Figure 9 The opening and cutting mechanism 6 includes a second support frame 601, a transverse screw linear module 602, a pneumatic parallel clamp 603, a transverse mounting block 604 and an opening and cutting tool 605. The second support frame 601 is arranged on the frame 1, the transverse screw linear module 602 is arranged on the top of the second support frame 601, the pneumatic parallel clamp 603 is arranged on the slide of the telescopic transverse screw linear module 602, the number of the transverse mounting blocks 604 is two, and they are arranged on the two slides of the pneumatic parallel clamp 603 opposite to each other, the number of the opening and cutting tools 605 is two, and the blades are arranged in the mounting grooves of the two transverse mounting blocks 604 opposite to each other;

[0070] Furthermore, the blade of the opening and cutting tool 605 includes an opening section 6050 and a cutting section 6051. When the two opening and cutting tools 605 are closed, a gap is provided between the two opening sections 6050 for expanding the incision. The cutting section 6051 is used to cut the wire. In this embodiment, the opening section 6050 is provided on the side close to the wire.

[0071] Specifically, the working principle of flaring is as follows: when the front end of the wire completes the upper and lower incisions through the two laser transmitters 502, and the incision is sent to be parallel to the cutting tool 605 through the clamping claw traction mechanism 4, the opening and the opening section 6050 of the cutting tool 605 are moved horizontally to the wire incision through the horizontal screw linear module 602, and the two opposite opening sections 6050 are closed through the pneumatic parallel clamp 603, thereby flaring the incision. After flaring is completed, it is moved to its original position through the horizontal screw linear module 602 to facilitate the wire pulling work of the wire pulling mechanism 7.

[0072] In addition, when cutting is required, the cutting section 6051 of the opening and cutting tool 605 is moved to the wire cutting position, and the specific principle is the same as above.

[0073] In one embodiment, see Figure 10-13 The wire pulling mechanism 7 includes a linear guide rail 71, an extension support frame 72 and a clamping mechanism 73. The linear guide rail 71 is arranged on the frame 1. The specific length of the linear guide rail 71 is determined according to the cutting length of the wire, and the length of the receiving groove 8 is adapted thereto. The extension support frame 72 includes an extension frame 720 and a support platform 721. The tail end of the extension frame 720 is arranged on the slide of the linear guide rail 71, and the support platform 721 is horizontally arranged at the front end of the extension frame 720. The clamping mechanism 73 includes a first clamping component 730 and a second clamping component 731. The second clamping component 731 and the first clamping component 730 are staggered front and back on the support platform 721.

[0074] With such a design, the clamping mechanism 73 on the support platform 721 can be sent to be parallel to the opening and cutting mechanism 6 through the extension frame 720, so that the clamping mechanism 73 can clamp the guide. At the same time, by arranging the second clamping assembly 731 and the first clamping assembly 730 staggered front and back on the support platform 721, it is convenient to double clamp the front end of the guide to prevent it from being pulled apart or detached due to insufficient clamping length. Specifically, the second clamping assembly 731 behind the clamping mechanism 73 is sent to the front end of the wire through the linear guide rail 71 and the extension support frame 72, and it is clamped by the second clamping assembly 731. Then, after the guide is pulled out backward to a certain distance, the guide is clamped for the second time by the first clamping assembly 730 in front.

[0075] Furthermore, the second clamping assembly 731 and the first clamping assembly 730 both include a pneumatic finger 7300, a clamping mounting seat 7301, a docking port 7302 and a clamping block 7303. The pneumatic finger 7300 is arranged on the support platform 721. There are two clamping mounting seats 7301, which are respectively connected to the two clamping claws of the pneumatic finger 7300 through the docking port 7302 arranged on the back thereof. There are two clamping blocks 7303, which are relatively arranged on the two clamping mounting seats 7301, so that the pneumatic finger 7300 can drive the two clamping blocks 7303 to complete the clamping work of the guide.

[0076] Furthermore, the traction clamp 405 includes a clamping block 4050 and a pointed clamping mouth 4051. The pointed clamping mouth 4051 is arranged on the side of the clamping block 4050 close to the wire pulling mechanism 7. The clamping sides of the two pointed clamping mouths 4051 are flat, and the separated sides are pointed slopes. Its structure can effectively avoid unnecessary conflict between the first clamping component 730 and the second clamping component 731 when clamping the guide.

[0077] In one embodiment, see Figure 15 The laser emitting mechanism 5 also includes two symmetrically arranged hand-cranked screw lifting mechanisms 502. The two hand-cranked screw lifting mechanisms 502 are symmetrically arranged on the frame 1. The two laser transmitters 501 are respectively arranged on the lifting platforms of the two hand-cranked screw lifting mechanisms 502, so that the distance between the two laser transmitters 501 can be appropriately adjusted through the two hand-cranked screw lifting mechanisms 502.

[0078] The above embodiments are merely multiple possible implementations of the embodiments of the present application, and the embodiments of the present application are not limited thereto.

[0079] In a second aspect, the present application provides a wire stripping and cutting method, which is applicable to a laser cutting mechanism as described in any one of the above, and the method specifically comprises the following steps:

[0080] S1. Manually pass the wires through the incoming wire straightening mechanism 3 and the clamping claw traction mechanism 4. The specific process is: after the wires of the six wire barrels in the placement frame 201 are passed through the corresponding guide positioning holes 203, they are sequentially passed through the six threading holes 323 of the incoming wire limiting part 32, the fixed straightening part 33 and the adjustable straightening part 34 of the straightening mechanism and the two traction claws 405 of the clamping claw traction mechanism 4.

[0081] S2. Use the clamping claw traction mechanism 4 to clamp the wire and make the front end of the wire emerge. The clamping cylinder 406 on the clamping claw traction mechanism 4 controls the upper traction clamping claw 405 to cooperate with the lower traction clamping claw 405 to clamp the wire.

[0082] S3, using the clamping claw traction mechanism 4 to clamp the wire and move it along the X and Y axes, so that the front end of the wire moves between the two laser transmitters 502, and the front end of the wire is laser cut by the two laser transmitters 502;

[0083] S4. After the laser incision is completed, the clamping claw traction mechanism 4 clamps the wire and continues to move along the X axis, and sends the wire incision to be parallel to the opening and cutting mechanism 6. Then, the cutter of the opening and cutting mechanism 6 is moved to the incision by horizontal movement, and the incision is enlarged, and then the cutter is moved to its original position;

[0084] S5. Move the wire pulling mechanism 7 to the wire and clamp the front end of the wire. After releasing the clamping of the clamping claw pulling mechanism 4, use the wire pulling mechanism 7 to pull the wire backward for a certain distance, then perform double clamping, and then continue to pull the wire to a preset length.

[0085] S6. Move the cutter of the opening and cutting mechanism 6 to the wire by horizontal movement again, cut the wire, and finally release the wire pulling mechanism 7.

[0086] The utility model supports the entire structure through the frame 1, and the laser emitting mechanism 5 is composed of two oppositely arranged laser transmitters 502, which are used to emit lasers to make cuts when the wire passes through them. The wire straightening mechanism 3 is located in front of the laser emitting mechanism 5 to ensure that the wire remains straight before entering the cutting area. The clamping claw traction mechanism 4 is responsible for clamping the straightened wire end and pulling it between the laser emitting mechanism 5. The opening and cutting mechanism 6 is located behind the laser emitting mechanism 5, and is used to expand the laser incision and finally cut the wire. The wire pulling mechanism 7 is used to pull the wire after the incision is expanded. In addition, the device also includes a guide frame 2, which includes a placement frame 201, a guide positioning frame 202 and a guide positioning hole 203, which is used to place multiple wire tubes and prevent the wires from being entangled with each other. The receiving groove 8 is provided on the frame 1, and is used to collect the wires after the head is stripped and cut. The wire-in straightening mechanism 3 consists of a support structure 31 and a straightening mechanism, the latter of which is further divided into a fixed straightening part 33 and an adjustable straightening part 34. The height of the straightening wheel is adjusted by rotating the handle 342 to control the lifting and adjusting assembly, thereby achieving effective straightening of the wire. The wire-in limiting part 32 ensures that the wire is in the correct position when entering the straightening mechanism. The clamping claw traction mechanism 4 achieves accurate feeding of the wire by moving in the X and Y axis directions. The traction clamping claw 405 and the clamping cylinder 406 in the clamping claw assembly ensure stable clamping and release of the wire. The opening and cutting mechanism 6 uses a laterally moving opening and cutting tool 605 to expand and cut the wire. The tool is divided into an opening section 6050 and a cutting section 6051 to ensure the accuracy and integrity of the incision. The wire pulling mechanism 7 achieves smooth pulling out of the wire through a linear guide 71 and an extended support frame 72. The first clamping assembly 730 and the second clamping assembly 731 in the clamping mechanism 73 ensure double clamping of the wire during the pulling process to prevent the wire from breaking or falling off.

[0087] In summary, the laser cutting mechanism not only improves the efficiency of stripping and cutting through reasonable design and effective coordination of various parts, but also minimizes the risk of damage to the wires. It is suitable for the stripping and cutting needs of various types of wires.

[0088] The present invention effectively solves the technical problems of very high precision requirements for parameters such as laser power, frequency and pulse width, which easily cause internal damage to the wires or too small incisions when processing very fine stranded wire pin connector wires, through the coordination of the laser emitting mechanism 5 and the opening and cutting mechanism 6. It can effectively improve the stripping and cutting accuracy of the stranded wire pin connector wires.

[0089] The specific embodiments of the present invention described above do not limit the scope of protection of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A laser cutting mechanism, characterized in that: include: a frame for supporting the device; The laser emitting mechanism includes two laser transmitters with emitting ends facing each other, and is used to emit laser to cut the wire when the wire passes through the two ends; a clamping claw pulling mechanism, located in front of the laser emitting mechanism, for clamping the end of the wire and pulling the end of the wire through between the two laser transmitters; An opening and cutting mechanism, located behind the laser emitting mechanism, for enlarging the incision opened by the laser transmitter for the wire and cutting the wire; as well as The wire pulling mechanism is located behind the opening and cutting mechanism and can be arranged side by side with the opening and cutting mechanism, and is used for pulling the wire after the incision is enlarged.

2. A laser cutting mechanism according to claim 1, characterized in that: The clamping claw traction mechanism includes a first support frame, a Y-axis screw linear module, an X-axis screw linear module, and a clamping claw assembly. The first support frame is arranged on the frame, the Y-axis screw linear module is arranged on the top of the first support frame, and the X-axis screw linear module is arranged on the slide of the Y-axis screw linear module.

3. A laser cutting mechanism according to claim 2, characterized in that: The clamping claw assembly includes a mounting frame, a traction clamping claw and a clamping cylinder. The mounting frame is arranged on the slide of the X-axis screw linear module. There are two traction clamping claws, which are symmetrically arranged in the mounting frame. The opposite sides of the two traction clamping claws are provided with positioning grooves adapted to the wires. The clamping cylinder is arranged on the top of the mounting frame, and its telescopic end passes through the mounting frame and is connected to the traction clamping claw located above.

4. A laser cutting mechanism according to claim 3, characterized in that: The opening and cutting mechanism includes a second support frame, a transverse screw linear module, a pneumatic parallel clamp, a transverse mounting block and an opening and cutting tool. The second support frame is arranged on the frame, the transverse screw linear module is arranged on the top of the second support frame, the pneumatic parallel clamp is arranged on the slide of the telescopic transverse screw linear module, the number of the transverse mounting blocks is two, and they are arranged oppositely on the two slides of the pneumatic parallel clamp, the number of the opening and cutting tools is two, and the blades are arranged oppositely in the mounting grooves of the two transverse mounting blocks.

5. The laser cutting mechanism according to claim 4, characterized in that: The blade of the opening and cutting tool comprises an opening section and a cutting section. When the two opening and cutting tools are closed, a gap is provided between the two opening sections for enlarging the incision.

6. The laser cutting mechanism according to claim 5, characterized in that: The wire pulling mechanism includes a linear guide rail, an extension support frame and a clamping mechanism. The linear guide rail is arranged on the frame. The extension support frame includes an extension frame and a support platform. The tail end of the extension frame is arranged on the slide of the linear guide rail. The support platform is arranged horizontally on the front end of the extension frame. The clamping mechanism includes a first clamping component and a second clamping component. The second clamping component and the first clamping component are arranged on the support platform in a front-to-back staggered manner.

7. The laser cutting mechanism according to claim 6, characterized in that: The second clamping assembly and the first clamping assembly both include pneumatic fingers, a clamping mounting seat, a docking port and a clamping block. The pneumatic fingers are arranged on the support platform. There are two clamping mounting seats, which are respectively connected to the two clamping claws of the pneumatic fingers through the docking ports arranged on the back thereof. There are two clamping blocks, which are arranged oppositely on the two clamping mounting seats.

8. The laser cutting mechanism according to claim 7, characterized in that: The traction clamping claw comprises a clamping block and a sharp clamping mouth, and the sharp clamping mouth is arranged on a side of the clamping block close to the wire pulling mechanism.

9. The laser cutting mechanism according to claim 1, characterized in that: It also includes a receiving groove, which is arranged on the frame and is located directly below the wire pulling mechanism, and is used to receive the wires that have been stripped and cut.

10. The laser cutting mechanism according to claim 1, characterized in that: The laser emitting mechanism further comprises two symmetrically arranged hand-crank screw lifting mechanisms, the two hand-crank screw lifting mechanisms are symmetrically arranged on the frame, and the two laser transmitters are respectively arranged on the lifting platforms of the two hand-crank screw lifting mechanisms.

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