Wire stripping and jointing device for wire harness processing and process thereof

Abstract

The invention discloses an electric wire peeling and jointing device for wire harness processing and a process thereof, and is applied to the technical field of wire harness processing equipment. A special wire clamping and positioning assembly used for conveying and positioning a special wire harness, a heat shrink tube sleeving assembly used for sleeving large and small heat shrink tubes at the two ends of a special wire in sequence, a special wire stripping assembly used for stripping insulating layers at the two ends of the special wire, and a wire output stripping assembly are sequentially arranged on the base in the conveying direction. The wire crimping assembly is used for realizing conduction and butt joint of a special wire and a conventional wire; the thermocompression welding assembly is used for clamping a small heat shrink tube and a large heat shrink tube in sequence and performing thermocompression welding; the cooling blanking assembly is used for realizing blanking of a finished wire harness; the base is further fixedly connected with a wire harness clamping and conveying assembly used for clamping wire harnesses and driving the wire harnesses to be conveyed. The wire harness butt joint device has the technical effects that full-automatic butt joint of wire harnesses is realized, the wire harness processing efficiency is improved, and the wire harness butt joint effect is ensured.

Description

Technical Field

[0001] This invention relates to the field of wire harness processing equipment technology, and in particular to a wire stripping and splicing device and process for wire harness processing. Background Technology

[0002] Wire harness connection is an indispensable process in industries such as electronics, electrical appliances, and automotive manufacturing. Especially in special wire harness applications such as heating wire harnesses, high-temperature resistant wire harnesses, and sensor wire harnesses, a structural design is usually adopted where a special functional wire (such as yellow / red high-temperature resistant and corrosion-resistant wire) in the middle is connected to conventional leads at both ends (such as white PVC wire). The special wire in the middle can meet the requirements of harsh working conditions such as high temperature, humidity, and corrosion, while the white wires at both ends use industry-standard wires to significantly reduce material costs. However, since the connection between the special functional wire and the conventional lead has higher requirements for waterproof sealing, the reliability of the connection and the waterproof sealing directly determine the safety and service life of the wire harness in outdoor and humid environments.

[0003] Currently, the industry mostly uses a manual, step-by-step approach to splicing wires with different insulation sheaths: first, the insulation layer at the ends of the two wires to be spliced ​​is removed manually using wire stripping tools to expose the internal metal cores; then, the two wire cores are crimped together using a metal connection structure; finally, waterproof insulating tape is wrapped around the connection point or heat shrink tubing is manually applied for sealing and protection. However, manual splicing suffers from problems such as wire core damage and uneven stripping length during the wire stripping process, and defects such as incomplete crimping, loose connections, and wire breaks during the crimping process. Furthermore, the subsequent waterproof sealing operation is inconsistent, which can easily lead to sealing failure and fails to meet the requirements of special functional wires. On the other hand, the processing efficiency of manual wire splicing is extremely low and cannot meet the needs of large-scale, batch wire harness processing production. Existing wire harness processing equipment on the market can only perform operations such as wire stripping and crimping, still requiring manual assistance to achieve wire harness splicing, resulting in low processing efficiency. Therefore, it is necessary to design a device that can automatically splice wire harnesses and ensure splicing effect to solve the above problems. Summary of the Invention

[0004] The primary objective of this invention is to provide a wire stripping and splicing device for wire harness processing, which has the advantages of achieving fully automatic wire harness splicing, improving wire harness processing efficiency, and ensuring wire harness splicing effect.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a wire stripping and joining device for wire harness processing, comprising a base; the base is provided with, along the conveying direction, a special wire clamping and positioning component for conveying and positioning a special wire harness, a heat shrink tubing fitting component for sequentially fitting large and small heat shrink tubing to both ends of the special wire, a special wire stripping component for stripping the insulation layer at both ends of the special wire, a wire output stripping component for clamping a conventional wire and stripping one end of the conventional wire, a wire crimping component for achieving conductive connection between the special wire and the conventional wire, a heat pressing welding component for sequentially clamping a small heat shrink tubing and a large heat shrink tubing and performing heat pressing welding, and a cooling unloading component for unloading the finished wire harness; the base is also fixedly connected with a wire harness clamping and conveying component for clamping the wire harness and driving the wire harness for conveying.

[0006] The present invention is further configured such that: the wire harness clamping and conveying assembly includes a horizontal conveying screw slide fixedly connected to the base in the horizontal direction and a horizontal reciprocating conveying seat fixedly connected to the sliding end of the horizontal conveying screw slide in the horizontal direction; a plurality of telescopic cylinder slides arranged perpendicular to the wire harness conveying direction are slidably connected at uniform intervals in the horizontal direction on the horizontal reciprocating conveying seat; a vertical lifting cylinder is fixedly connected to the sliding end of the telescopic cylinder slide in the vertical direction; a horizontal mounting seat is fixedly connected to the telescopic end of the vertical lifting cylinder; a set of first clamping cylinders for clamping the end of special wires are fixedly connected in parallel on the horizontal mounting seat; and a first wire harness clamping block is fixedly connected to the clamping end of the first clamping cylinder.

[0007] The present invention is further configured such that: the special wire clamping and positioning assembly includes a special wire output seat fixedly connected to the base along a direction perpendicular to the wire harness conveying direction for outputting special wires, and a rotary telescopic cylinder fixedly connected to the base along a vertical direction based on a clamping and positioning frame; a deflection block is fixedly connected to the rotation shaft of the rotary telescopic cylinder; a second clamping cylinder for clamping the head of the special wire is fixedly connected to the deflection block; a second wire harness clamping block is fixedly connected to the clamping end of the second clamping cylinder; a special wire cutting cylinder is fixedly connected to the clamping and positioning frame along a vertical direction; and a special wire cutting blade is fixedly connected to the telescopic end of the special wire cutting cylinder.

[0008] The present invention is further configured such that: the heat shrink tubing fitting assembly includes a heat shrink tubing output seat fixedly connected to the base along a direction perpendicular to the wire harness conveying direction for outputting heat shrink tubing, and a heat shrink tubing cutting cylinder fixedly connected vertically to the outlet end of the heat shrink tubing output seat. A heat shrink tubing cutting blade is fixedly connected to the telescopic end of the heat shrink tubing cutting cylinder. A fitting fixing seat is also fixedly connected to the base. A first heat shrink tubing clamping cylinder is slidably connected to the fitting fixing seat along a direction perpendicular to the wire harness conveying direction based on a fitting cylinder slide. A first heat shrink tubing clamping block for clamping heat shrink tubing is fixedly connected to the clamping end of the first heat shrink tubing clamping cylinder.

[0009] The present invention is further configured such that: the wire output stripping assembly includes a wire conveying seat arranged parallel to the base; the wire conveying seat is provided with, in sequence along the wire conveying direction, a wire output seat for outputting wires, a wire stripping assembly for stripping one end of the wire, and a wire clamping and conveying assembly for conveying the wire; a wire cutting cylinder is symmetrically fixedly connected to the outlet end of the wire output seat along the vertical direction; a wire cutting blade is fixedly connected to the telescopic end of the wire cutting cylinder; the wire clamping and conveying assembly includes a first horizontal conveying screw slide fixedly connected to the wire conveying seat along the direction perpendicular to the wire conveying direction, and a second horizontal conveying screw slide fixedly connected to the sliding end of the first horizontal conveying screw slide along the direction parallel to the wire conveying direction; a third clamping cylinder for clamping the end of the wire is fixedly connected to the sliding end of the second horizontal conveying screw slide; and a third wire harness clamping block is fixedly connected to the clamping end of the third clamping cylinder.

[0010] The present invention is further configured such that: both the wire stripping assembly and the special wire stripping assembly include a stripping fixing seat fixedly arranged along the vertical direction and a stripping cylinder symmetrically fixedly connected to the stripping fixing seat along the vertical direction; the telescopic end of the stripping cylinder is fixedly connected to a stripping plate, and a stripping groove is formed in the stripping plate.

[0011] The present invention is further configured such that: the wire crimping assembly includes a material guide groove fixedly connected to the base in the horizontal direction for conveying a material strip carrying a wire crimping ring; a material feeding tray and a material receiving tray are rotatably connected to both ends of the material guide groove on the base; a feeding and receiving drive motor is fixedly connected to the base to drive the material feeding tray and the material receiving tray to rotate; a crimping cylinder is fixedly connected to the base in the vertical direction; a pressing block is fixedly connected to the telescopic end of the crimping cylinder for crimping and fixing the special wire end and the wire end in the wire crimping ring to achieve conductivity; and a pressing groove is formed on the pressing block.

[0012] The present invention is further configured such that: the hot-press welding assembly includes a fixedly mounted hot-press welding seat, a hot-press conveying cylinder slide fixedly connected to the hot-press welding seat along a direction perpendicular to the wire harness conveying direction, a second heat-shrink tubing clamping cylinder and a hot-press clamping cylinder fixedly connected to the sliding end of the hot-press conveying cylinder slide, the clamping end of the second heat-shrink tubing clamping cylinder fixedly connected to a second heat-shrink tubing clamping block for clamping the heat-shrink tubing, and a clamping heat-shrinking plate for covering the heat-shrink tubing and heating and shrinking the heat-shrink tubing symmetrically fixedly connected to the clamping end of the hot-press clamping cylinder, the clamping heat-shrinking plate having positioning grooves for positioning the heat-shrink tubing, and sealing reinforcement grooves extending to both sides having openings at both ends of the positioning grooves.

[0013] The present invention is further configured such that: the cooling unloading assembly includes a cooling seat fixedly connected to the base in the horizontal direction and cold air outlets uniformly opened on the cooling seat in the wire harness conveying direction; the cooling seat has a connecting cavity communicating with the cold air outlet and a cold air inlet pipe fixedly connected to it for introducing cold air into the connecting cavity; a unloading cylinder slide is also fixedly connected to the base in the wire harness conveying direction; the sliding end of the unloading cylinder slide is fixedly connected to an unloading clamping cylinder for clamping the wire harness; and the clamping end of the unloading clamping cylinder is fixedly connected to an unloading clamping block.

[0014] The second objective of this invention is to provide a wire stripping and splicing process for wire harness processing, which has the advantages of achieving fully automated wire harness splicing, improving wire harness processing efficiency, and ensuring wire harness splicing effect.

[0015] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a wire stripping and splicing process for wire harness processing, employing a wire stripping and splicing device for wire harness processing as described in any of the above technical solutions; comprising: Step 1: First, the special wire clamping and positioning component outputs a special wire of a fixed length and bends the special wire to achieve clamping and positioning at both ends of the special wire. The wire harness clamping and conveying component then conveys the special wire to the heat shrink tubing splicing station. Step 2: The heat shrink tubing assembly successively attaches large-diameter and small-diameter heat shrink tubing to both ends of the special wire, and the wire harness clamping and conveying assembly conveys the special wire to the special wire stripping station. Step 3: The special wire stripping assembly strips the insulation layer at both ends of the special wire. At the same time, the wire output stripping assembly outputs a fixed length of wire and strips the insulation layer at one end of the wire. The wire harness clamping and conveying assembly conveys the special wire to the wire crimping station. At the same time, the wire output stripping assembly also outputs the wire to the wire crimping station. Step 4: The wire harness clamping and conveying assembly inserts the special wire connector into the wire clamping ring from one side, and at the same time inserts the wire connector into the wire clamping ring from the other end. Then, the wire clamping ring is pressed down to achieve the conduction between the special wire and the wire. The wire harness clamping and conveying assembly then conveys the joined wire harness to the hot pressing welding station. Step 5: The hot-press welding assembly moves the small-diameter heat shrink tubing and the large-diameter heat shrink tubing to the joint of the wire harness in sequence and performs hot pressing to shrink the heat shrink tubing, thereby completing the seal at the joint of the wire harness. The wire harness clamping and conveying assembly then conveys the wire harness to the unloading station. Step 6: The cooling and unloading assembly clamps the finished wire harness to unload it. During the unloading process, the wire harness connectors are cooled down.

[0016] In summary, the present invention has the following beneficial effects: 1. By sequentially integrating special wire clamping and positioning components, heat shrink tubing fitting components, special wire stripping components, wire output stripping components, wire crimping components, hot pressing welding components, and cooling and unloading components along the wire harness processing path on the base, and combining them with the wire harness clamping and conveying components to realize the conveying of the wire harness, the fully automatic docking of special wires and conventional wires is realized. This replaces manual docking and avoids defects such as wire core damage and unstable crimping quality that are easily caused by manual operation, thus improving the docking efficiency and docking effect of the wire harness. 2. The heat shrink tubing assembly pre-fits two sizes of heat shrink tubing. After the wire core crimping assembly completes the crimping, the small-diameter and large-diameter heat shrink tubing are sequentially clamped and transported to the wire core mating point for heat-press welding. This improves the waterproof sealing of the wire core mating point through the two sets of heat shrink tubing. Simultaneously, the heat-press welding assembly has positioning grooves for positioning the heat shrink tubing within the clamping heat shrink plate, and sealing reinforcement grooves extending to both sides at the ends of the positioning grooves. By clamping the two ends of the heat shrink tubing with the clamping heat shrink plate, the heat shrink tubing and the special wire are heat-pressed onto the conventional wire. The outer insulation layer of the special wire and the conventional wire is deformed by the crimping, extending to both sides. Simultaneously, the heat shrink tubing extends to both sides and fuses with the insulation layer of the special wire and the conventional wire, increasing the mating area and achieving a reinforced seal at both ends of the mating point, thus improving the long-term waterproof performance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this embodiment; Figure 2 yes Figure 1 Enlarged schematic diagram of part A; Figure 3 yes Figure 1 Enlarged diagram of part B; Figure 4 yes Figure 1 Enlarged schematic diagram of part C; Figure 5 This is a schematic diagram of the wire output stripping assembly in this embodiment; Figure 6 This is a schematic diagram of the hot-press welding assembly in this embodiment; Figure 7 This is a cross-sectional view of the clamping heat shrink plate in this embodiment; Figure 8 This is a schematic diagram of the cooling and unloading assembly in this embodiment; Figure 9 This is a cross-sectional view of the cooling and unloading assembly in this embodiment.

[0018] Reference numerals: 1. Base; 2. Special wire clamping and positioning assembly; 21. Special wire output seat; 22. Clamping and positioning frame; 23. Rotary telescopic cylinder; 24. Deflection block; 25. Second clamping cylinder; 26. Second wire harness clamping block; 27. Special wire cutting cylinder; 28. Special wire cutting knife; 3. Heat shrink tubing connection assembly; 31. Heat shrink tubing output seat; 32. Heat shrink tubing cutting cylinder; 33. Heat shrink tubing cutting knife; 34. Connection fixing seat; 35. Connection cylinder slide; 36. ... 37. First heat shrink tubing clamping cylinder; 4. Special wire stripping assembly; 5. Wire output stripping assembly; 51. Wire conveying seat; 52. Wire output seat; 53. Wire stripping assembly; 531. Stripping fixing seat; 532. Stripping cylinder; 533. Stripping plate; 534. Stripping groove; 54. Wire clamping and conveying assembly; 541. First horizontal conveying screw slide; 542. Second horizontal conveying screw slide; 543. Third clamping cylinder; 544. 55. Wire harness clamping block; 56. Wire cutting cylinder; 6. Wire cutting knife; 7. Wire crimping assembly; 61. Material guide groove; 62. Material feeding tray; 63. Material receiving tray; 64. Crimping cylinder; 65. Pressing block; 66. Pressing groove; 7. Hot press welding assembly; 73. Hot press welding seat; 74. Hot press conveying cylinder slide; 75. Second heat shrink tubing clamping cylinder; 76. Hot press clamping cylinder; 77. Second heat shrink tubing clamping block; 78. Clamping heat shrink plate; 79. Positioning groove; 710. Sealing reinforcement groove; 8. Cooling unloading assembly; 81. Cooling seat; 82. Cold air outlet; 83. Connecting cavity; 84. Cold air inlet pipe; 85. Unloading cylinder slide; 86. Unloading clamping cylinder; 87. Unloading clamping block; 9. Wire harness clamping and conveying assembly; 91. Horizontal conveying screw slide; 92. Horizontal reciprocating conveying seat; 93. Telescopic cylinder slide; 94. Vertical lifting cylinder; 95. Horizontal mounting seat; 96. First clamping cylinder; 97. First wire harness clamping block. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings.

[0020] Example 1: refer to Figure 1 A wire stripping and splicing device for wire harness processing includes a base 1. On the base 1, along the conveying direction, are sequentially arranged the following components: a special wire clamping and positioning assembly 2 for conveying and positioning special wire harnesses; a heat shrink tubing splicing assembly for sequentially attaching large and small heat shrink tubing to both ends of the special wire; a special wire stripping assembly for stripping the insulation layers from both ends of the special wire; a wire output stripping assembly for clamping and stripping one end of a conventional wire; a wire crimping assembly for achieving conductive connection between the special wire and the conventional wire; and a wire crimping assembly for sequentially clamping and crimping small and large heat shrink tubing. The hot-press welding assembly 7 and the cooling unloading assembly 8 for unloading finished wire harnesses are fixedly connected on the base 1. The base 1 is also fixedly connected to the wire harness clamping and conveying assembly 9 for clamping the wire harness and driving the wire harness to be conveyed. After the special wire is output, it is sequentially clamped and positioned, heat shrink tubing is connected, stripped, crimped and connected, hot-pressed and welded and cooled and unloaded along the processing path, thus completing the fully automatic wire harness joining and improving the efficiency of wire harness docking. The heat shrink tubing connection assembly 3 and the hot-press welding assembly 7 are arranged in two sets to realize the connection and hot pressing of heat shrink tubing of different diameters respectively.

[0021] refer to Figure 2 Specifically, the wire harness clamping and conveying assembly 9 includes a horizontal conveying screw slide 91 fixedly connected to the base 1 in the horizontal direction and a horizontal reciprocating conveying seat 92 fixedly connected to the sliding end of the horizontal conveying screw slide 91 in the horizontal direction. A plurality of telescopic cylinder slides 93, arranged perpendicular to the wire harness conveying direction, are slidably connected to the horizontal reciprocating conveying seat 92 at even intervals in the horizontal direction. A vertical lifting cylinder 94 is fixedly connected to the sliding end of the telescopic cylinder slide 93 in the vertical direction. A horizontal mounting base 95 is fixedly connected to the telescopic end of the vertical lifting cylinder 94. A set of first clamping cylinders 96 for clamping the ends of special wires are fixedly connected in parallel. The clamping end of the first clamping cylinder 96 is fixedly connected to a first wire harness clamping block 97. The horizontal conveying screw slide 91 drives the horizontal reciprocating conveyor seat 92 to slide back and forth, thereby realizing the reciprocating conveying of the wire harness. The telescopic cylinder slide 93 and the vertical lifting cylinder 94 cooperate to drive the first clamping cylinder 96 to slide horizontally and lift vertically, thereby realizing the movement of the wire harness. At each workstation, a clamp for clamping special wires can be provided as needed to cooperate with the first clamping cylinder 96 to realize the transfer of the wire harness.

[0022] refer to Figure 2Specifically, the special wire clamping and positioning assembly 2 includes a special wire output seat 21 fixedly connected to the base 1 along a direction perpendicular to the wire harness conveying direction, and a rotary telescopic cylinder 23 fixedly connected to the base 1 along a vertical direction based on the clamping and positioning frame 22. A deflection block 24 is fixedly connected to the rotation axis of the rotary telescopic cylinder 23, and a second clamping cylinder 25 for clamping the head of the special wire is fixedly connected to the deflection block 24. A second wire harness clamping block 26 is fixedly connected to the clamping end of the second clamping cylinder 25. A special wire cutting cylinder 27 is fixedly connected to the clamping and positioning frame 22 along a vertical direction. The telescopic end of the special wire cutting cylinder 27... A special wire cutter 28 is fixedly connected. After the special wire is output from the special wire output seat 21, the second clamping cylinder 25 drives the second wire harness clamping block 26 to clamp the front end of the special wire. Then, the rotary telescopic cylinder 23 drives the deflection block 24 to rotate 180 degrees, which in turn drives the front end of the special wire to rotate 180 degrees so that it can be clamped by the first wire harness clamping block 96. After the special wire is conveyed to a set length, the special wire cutter 28 cuts the special wire through the special wire cutter 27, and the first clamping cylinder 96 drives the first wire harness clamping block to clamp the end of the special wire. At this time, the wire harness clamping and conveying assembly 9 conveys the special wire in a U-shape to the heat shrink tubing station.

[0023] refer to Figure 3 Specifically, the heat shrink tubing fitting assembly 3 includes a heat shrink tubing output seat 31 fixedly connected to the base 1 along a direction perpendicular to the wire harness conveying direction, and a heat shrink tubing cutting cylinder 32 fixedly connected vertically to the outlet end of the heat shrink tubing output seat 31. A heat shrink tubing cutting blade 33 is fixedly connected to the telescopic end of the heat shrink tubing cutting cylinder 32. A fitting fixing seat 34 is also fixedly connected to the base 1, and the fitting fixing seat 34 slides along a direction perpendicular to the wire harness conveying direction based on the fitting cylinder slide 35. A first heat shrink tubing clamping cylinder 36 is connected, and a first heat shrink tubing clamping block 37 for clamping the heat shrink tubing is fixedly connected to the clamping end of the first heat shrink tubing clamping cylinder 36. After the heat shrink tubing is output to a certain length based on the heat shrink tubing output seat 31, the heat shrink tubing is cut by the heat shrink tubing cutting cylinder 32 driving the heat shrink tubing cutting blade 33. At this time, after the heat shrink tubing is clamped by the first heat shrink tubing clamping block 37 driven by the first heat shrink tubing clamping cylinder 36, the cut heat shrink tubing is moved by the sleeve cylinder slide 35 and thus sleeved on the special line.

[0024] refer to Figure 5Specifically, the wire output stripping assembly 5 includes a wire conveying seat 51 arranged parallel to the base 1. Along the wire conveying direction, the wire conveying seat 51 is sequentially provided with a wire output seat 52 (arranged perpendicular to the wire conveying seat 51) for outputting wires, a wire stripping assembly 53 for stripping one end of the wire, and a wire clamping and conveying assembly 54 for conveying the wires. A wire cutting cylinder 55 is symmetrically fixedly connected vertically at the outlet end of the wire output seat 52. A wire cutting blade 56 is fixedly connected to the telescopic end of the wire cutting cylinder 55. The wire clamping and conveying assembly 54 includes a first horizontal conveying screw slide 541 fixedly connected perpendicular to the wire conveying direction on the wire conveying seat 51, and a first horizontal conveying screw slide 541 fixedly connected parallel to the wire conveying direction. The second horizontal conveying screw slide 542 at the sliding end of the conveying screw slide 541 is fixedly connected to a third clamping cylinder 543 for clamping the end of the wire. The clamping end of the third clamping cylinder 543 is fixedly connected to a third wire harness clamping block 544. After the conventional wire is output to a certain length from the wire output seat 52, the end of the wire is clamped by the third clamping cylinder 543 and the third wire harness clamping block 544. Then, the wire cutting cylinder 55 drives the wire cutting knife 56 to cut the end of the wire. Subsequently, the third clamping cylinder 543 and the conventional wire are moved to the wire stripping assembly 53 by the first horizontal conveying screw slide 541 and the second horizontal conveying screw slide 542 to strip the wire. After stripping, the conventional wire is moved to the wire crimping station for crimping.

[0025] refer to Figure 5 Specifically, both the wire stripping assembly 53 and the special wire stripping assembly 4 include a stripping fixing seat 531 fixedly arranged in the vertical direction and a stripping cylinder 532 symmetrically fixedly connected to the stripping fixing seat 531 in the vertical direction. A stripping plate 533 is fixedly connected to the telescopic end of the stripping cylinder 532. A stripping groove 534 is provided in the stripping plate 533. When stripping conventional wires or special wires, the stripping cylinder 532 drives the stripping plate 533 to close together, and the wire is clamped in the stripping groove 534. Then, the wire is pulled outward to achieve the stripping of conventional wires or special wires.

[0026] refer to Figure 4Specifically, the wire crimping assembly 6 includes a material guide groove 61 fixedly connected horizontally to the base 1 for conveying a material strip carrying wire crimping rings. A material feeding tray 62 and a material receiving tray 63 are rotatably connected to both ends of the material guide groove 61 on the base 1. A take-up and feed drive motor is fixedly connected to the base 1 to drive the material feeding tray 62 and the material receiving tray 63 to rotate. The material strip carrying the wire crimping rings is output through the material feeding tray 62, moves along the direction of the material guide groove 61, and finally enters the material receiving tray 63. The take-up and feed drive motor drives the material strip to convey a certain distance at a time so that the wire crimping rings are conveyed to the crimping station. The material strip is fixedly connected vertically to the base 1. A crimping cylinder 64 is connected to the extension end of the crimping cylinder 64. A pressing block 65 is fixedly connected to the extension end of the crimping cylinder 64 to crimp and fix the special wire head and the ordinary wire head in the wire pressing ring to achieve conductivity. A pressing groove 66 is opened on the pressing block 65. When the special wire moves to the pressing station, the wire harness clamping and conveying assembly 9 inserts the special wire connector into the wire pressing ring from one side. At the same time, the wire harness clamping and conveying assembly 9 inserts the wire connector into the wire pressing ring from the other end. Then, the crimping cylinder 64 drives the pressing block 65 to press down. The wire pressing ring is deformed by the pressing groove 66, thereby fixing and joining the special wire connector and the ordinary wire connector in the wire pressing ring to achieve conductivity. After the crimping is completed, the wire pressing ring is separated from the material belt.

[0027] refer to Figure 6 and Figure 7Specifically, the hot-press welding assembly 7 includes a fixedly mounted hot-press welding base 73. A hot-press conveying cylinder slide 74, arranged perpendicular to the wire harness conveying direction, is fixedly connected to the hot-press welding base 73. A second heat shrink tubing clamping cylinder 75 and a hot-press clamping cylinder 76 are fixedly connected to the sliding end of the hot-press conveying cylinder slide 74. A second heat shrink tubing clamping block for clamping the heat shrink tubing is fixedly connected to the clamping end of the second heat shrink tubing clamping cylinder 75. Symmetrically fixed blocks are fixed to the clamping ends of the hot-press clamping cylinders 76. A clamping heat-shrink plate 78 is connected to cover and heat-shrink tubing for heat shrinking. Positioning grooves 79 for positioning the heat-shrink tubing are formed within the clamping heat-shrink plate 78. Sealing reinforcement grooves 710 extending to both sides are formed at both ends of the positioning grooves 79. During heat pressing, the fourth clamping cylinder 71 first drives the fourth wire harness clamping block 72 to clamp both ends of the wire harness, with the large and small heat-shrink sleeves positioned between the fourth wire harness clamping blocks 72. Subsequently, the heat pressing conveying cylinder slide 74 drives the second heat-shrink tubing clamping cylinder 75 to... First, the small-diameter heat shrink tubing is clamped and slid to the wire joint. Then, the thermo-pressing clamping cylinder 76 drives the clamping heat shrink plate 78 to close and heat the small-diameter heat shrink tubing, causing it to shrink and cover the wire harness structure. Since the small-diameter heat shrink tubing is smaller than the positioning groove 79, it will directly cover the wire harness joint after being heated. Then, the thermo-pressing delivery cylinder slide 74 drives the second heat shrink tubing clamping cylinder 75 to continue clamping the large-diameter heat shrink tubing, thus clamping the large-diameter heat shrink tubing onto the wire harness. At the joint, the hot-pressing clamping cylinder 76 drives the clamping heat-shrink plate 78 to close and heat the large-diameter heat-shrink tube. Since the volume of the large-diameter heat-shrink tube is larger than the volume of the positioning groove 79, during the hot pressing process of the large-diameter heat-shrink tube, the outer insulation layer of the special wire and the conventional wire is pressed and deformed, thus extending to both sides. At the same time, the heat-shrink tube extends to both sides to fuse and join with the insulation layer of the special wire and the conventional wire, increasing the docking area and thus achieving a reinforced seal at both ends of the docking point, improving the waterproof performance for long-term use.

[0028] refer to Figure 8 and Figure 9Specifically, the cooling unloading assembly 8 includes a cooling seat 81 fixedly connected to the base 1 along the horizontal direction and cold air outlets evenly opened on the cooling seat 81 along the wire harness conveying direction. A connecting cavity 83 communicating with the cold air outlets is provided inside the cooling seat 81, and a cold air inlet pipe 84 fixedly connected to it for introducing cold air into the connecting cavity 83. Cold air enters the connecting cavity 83 from the cold air inlet pipe and finally exits from the cold air outlets, thereby cooling the heat-shrinkable wire harness after hot pressing. The tube is cooled. A feeding cylinder slide 85 is fixedly connected to the base 1 along the wire harness conveying direction. A feeding clamping cylinder 86 for clamping the wire harness is fixedly connected to the sliding end of the feeding cylinder slide 85. A feeding clamping block 87 is fixedly connected to the clamping end of the feeding clamping cylinder 86. The feeding clamping cylinder 86 drives the feeding clamping block 87 to clamp the processed wire harness and the feeding cylinder slide 85 drives the wire harness to the feeding station to complete the feeding of the wire harness.

[0029] Example 2: A wire stripping and splicing process for wire harness processing, using a wire stripping and splicing device for wire harness processing as shown in Example 1, includes: Step 1: First, the special wire clamping and positioning component 2 outputs a special wire of a fixed length and bends the special wire to achieve clamping and positioning at both ends of the special wire. The wire harness clamping and conveying component 9 conveys the special wire to the heat shrink tubing splicing station. Step 2: Heat shrink tubing assembly 3 successively attaches large-diameter and small-diameter heat shrink tubing to both ends of the special wire, and wire harness clamping and conveying assembly 9 conveys the special wire to the special wire stripping station. Step 3: The special wire stripping assembly 4 strips the insulation layer at both ends of the special wire. At the same time, the wire output stripping assembly 5 outputs a fixed length of wire and strips the insulation layer at one end of the wire. The wire harness clamping and conveying assembly 9 conveys the special wire to the wire crimping station. At the same time, the wire output stripping assembly 5 also outputs the wire to the wire crimping station. Step 4: The wire harness clamping and conveying assembly 9 inserts the special wire connector into the wire clamping ring from one side, and at the same time inserts the wire connector into the wire clamping ring from the other end. Then, the wire clamping ring is pressed down to achieve the conduction between the special wire and the wire. The wire harness clamping and conveying assembly 9 conveys the joined wire harness to the hot pressing welding station. Step 5: The hot-press welding assembly 7 moves the small-diameter heat shrink tubing and the large-diameter heat shrink tubing to the joint of the wire harness in sequence and performs hot pressing to shrink the heat shrink tubing, thereby completing the sealing at the joint of the wire harness. The wire harness clamping and conveying assembly 9 conveys the wire harness to the unloading station. Step 6: The cooling and unloading assembly 8 clamps the finished wire harness to unload it, and cools the wire harness connector during the unloading process.

[0030] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make inventive modifications to this embodiment as needed, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A wire stripping and splicing device for wire harness processing, comprising a base (1); characterized in that, The base (1) is provided with, along the conveying direction, a special wire clamping and positioning assembly (2) for conveying and positioning special wire harnesses, a heat shrink tubing fitting assembly (3) for fitting large and small heat shrink tubing to both ends of the special wire, a special wire stripping assembly (4) for stripping the insulation layer at both ends of the special wire, a wire output stripping assembly (5) for clamping conventional wires and stripping one end of the conventional wires, a wire crimping assembly (6) for connecting and connecting special wires and conventional wires, a heat pressing welding assembly (7) for clamping small and large heat shrink tubing and performing heat pressing welding, and a cooling unloading assembly (8) for unloading finished wire harnesses. The base (1) is also fixedly connected with a wire harness clamping and conveying assembly (9) for clamping the wire harness and driving the wire harness to convey.

2. The wire stripping and splicing device for wire harness processing according to claim 1, characterized in that, The wire harness clamping and conveying assembly (9) includes a horizontal conveying screw slide (91) fixedly connected to the base (1) in the horizontal direction and a horizontal reciprocating conveying seat (92) fixedly connected to the sliding end of the horizontal conveying screw slide (91) in the horizontal direction. A plurality of telescopic cylinder slides (93) are evenly spaced on the horizontal reciprocating conveying seat (92) and arranged perpendicular to the wire harness conveying direction. A vertical lifting cylinder (94) is fixedly connected to the sliding end of the telescopic cylinder slide (93) in the vertical direction. A horizontal mounting seat (95) is fixedly connected to the telescopic end of the vertical lifting cylinder (94). A set of first clamping cylinders (96) for clamping the end of special wires are fixedly connected in parallel on the horizontal mounting seat (95). A first wire harness clamping block (97) is fixedly connected to the clamping end of the first clamping cylinder (96).

3. The wire stripping and splicing device for wire harness processing according to claim 1, characterized in that, The special wire clamping and positioning assembly (2) includes a special wire output seat (21) fixedly connected to the base (1) along the direction perpendicular to the wire harness conveying direction, and a rotary telescopic cylinder (23) fixedly connected to the base (1) along the vertical direction based on the clamping and positioning frame (22). A deflection block (24) is fixedly connected to the rotation shaft of the rotary telescopic cylinder (23). A second clamping cylinder (25) for clamping the head of the special wire is fixedly connected to the deflection block (24). A second wire harness clamping block (26) is fixedly connected to the clamping end of the second clamping cylinder (25). A special wire cutting cylinder (27) is fixedly connected to the clamping and positioning frame (22) along the vertical direction. A special wire cutting blade (28) is fixedly connected to the telescopic end of the special wire cutting cylinder (27).

4. The wire stripping and splicing device for wire harness processing according to claim 1, characterized in that, The heat shrink tubing assembly (3) includes a heat shrink tubing output seat (31) fixedly connected to the base (1) along the direction perpendicular to the wire harness conveying direction, and a heat shrink tubing cutting cylinder (32) fixedly connected to the outlet end of the heat shrink tubing output seat (31) along the vertical direction. The telescopic end of the heat shrink tubing cutting cylinder (32) is fixedly connected to a heat shrink tubing cutting blade (33). The base (1) is also fixedly connected to a socket fixing seat (34). The socket fixing seat (34) is slidably connected to a first heat shrink tubing clamping cylinder (36) along the direction perpendicular to the wire harness conveying direction based on the socket cylinder slide (35). The clamping end of the first heat shrink tubing clamping cylinder (36) is fixedly connected to a first heat shrink tubing clamping block (37) for clamping the heat shrink tubing.

5. The wire stripping and splicing device for wire harness processing according to claim 1, characterized in that, The wire output stripping assembly (5) includes a wire conveying seat (51) arranged parallel to the base (1). Along the wire conveying direction, the wire conveying seat (51) is sequentially provided with a wire output seat (52) for outputting wires, a wire stripping assembly (53) for stripping one end of the wire, and a wire clamping and conveying assembly (54) for conveying the wires. A wire cutting cylinder (55) is symmetrically and fixedly connected to the outlet end of the wire output seat (52) in the vertical direction. The telescopic end of the wire cutting cylinder (55) is fixedly connected to a guide... The wire cutting knife (56) and the wire clamping and conveying assembly (54) include a first horizontal conveying screw slide (541) fixedly connected to the wire conveying seat (51) along a direction perpendicular to the wire conveying direction and a second horizontal conveying screw slide (542) fixedly connected to the sliding end of the first horizontal conveying screw slide (541) along a direction parallel to the wire conveying direction. The sliding end of the second horizontal conveying screw slide (542) is fixedly connected to a third clamping cylinder (543) for clamping the end of the wire. The clamping end of the third clamping cylinder (543) is fixedly connected to a third wire harness clamping block (544).

6. The wire stripping and splicing device for wire harness processing according to claim 5, characterized in that, Both the wire stripping assembly (53) and the special wire stripping assembly (4) include a stripping fixing seat (531) fixedly arranged in the vertical direction and a stripping cylinder (532) symmetrically fixedly connected to the stripping fixing seat (531) in the vertical direction. The telescopic end of the stripping cylinder (532) is fixedly connected to a stripping plate (533), and a stripping groove (534) is provided in the stripping plate (533).

7. The wire stripping and splicing device for wire harness processing according to claim 1, characterized in that, The wire crimping assembly (6) includes a material guide groove (61) fixedly connected to the base (1) along the horizontal direction for conveying a material strip carrying a wire crimping ring. The base (1) is rotatably connected to a material feeding tray (62) and a material receiving tray (63) at both ends of the material guide groove (61). A feeding and receiving drive motor is fixedly connected to the base (1) to drive the material feeding tray (62) and the material receiving tray (63) to rotate. A crimping cylinder (64) is fixedly connected to the base (1) along the vertical direction. A pressing block (65) is fixedly connected to the telescopic end of the crimping cylinder (64) for crimping and fixing the special wire end and the wire end in the wire crimping ring to achieve conductivity. A pressing groove (66) is opened on the pressing block (65).

8. The wire stripping and splicing device for wire harness processing according to claim 1, characterized in that, The hot-press welding assembly (7) includes a fixed hot-press welding seat (73), on which a hot-press conveying cylinder slide (74) is fixedly connected along a direction perpendicular to the wire harness conveying direction. The sliding end of the hot-press conveying cylinder slide (74) is fixedly connected to a second heat shrink tubing clamping cylinder (75) and a hot-press clamping cylinder (76). The clamping end of the second heat shrink tubing clamping cylinder (75) is fixedly connected to a second heat shrink tubing clamping block for clamping the heat shrink tubing. The clamping end of the hot-press clamping cylinder (76) is symmetrically fixedly connected to a clamping heat shrink plate (78) for covering the heat shrink tubing and heating and shrinking the heat shrink tubing. The clamping heat shrink plate (78) is provided with positioning grooves (79) for positioning the heat shrink tubing. Sealing reinforcement grooves (710) extending to both sides are provided at both ends of the positioning grooves (79).

9. The wire stripping and splicing device for wire harness processing according to claim 1, characterized in that, The cooling unloading assembly (8) includes a cooling seat (81) fixedly connected to the base (1) in the horizontal direction and a cold air outlet evenly opened on the cooling seat (81) in the wire harness conveying direction. The cooling seat (81) is provided with a connecting cavity (83) communicating with the cold air outlet and a cold air inlet pipe (84) fixedly connected to it for introducing cold air into the connecting cavity (83). The base (1) is also fixedly connected with a unloading cylinder slide (85) in the wire harness conveying direction. The sliding end of the unloading cylinder slide (85) is fixedly connected with an unloading clamping cylinder (86) for clamping the wire harness. The clamping end of the unloading clamping cylinder (86) is fixedly connected with an unloading clamping block (87).

10. A wire stripping and splicing process for wire harness processing, employing a wire stripping and splicing device for wire harness processing as described in any one of claims 1-9; characterized in that, include: Step 1: First, the special wire clamping and positioning component (2) outputs a special wire of a fixed length and bends the special wire to achieve clamping and positioning at both ends of the special wire. The wire harness clamping and conveying component (9) conveys the special wire to the heat shrink tubing splicing station. Step 2: Heat shrink tubing assembly (3) sequentially attaches large-diameter and small-diameter heat shrink tubing to both ends of the special wire, and wire harness clamping and conveying assembly (9) conveys the special wire to the special wire stripping station. Step 3: The special wire stripping assembly (4) strips the insulation layer at both ends of the special wire. At the same time, the wire output stripping assembly (5) outputs a fixed length of wire and strips the insulation layer at one end of the wire. The wire harness clamping and conveying assembly (9) conveys the special wire to the wire crimping station. At the same time, the wire output stripping assembly (5) also outputs the wire to the wire crimping station. Step 4: The wire harness clamping and conveying assembly (9) inserts the special wire connector into the wire clamping ring from one side, and at the same time inserts the wire connector into the wire clamping ring from the other end. Then, it presses down the wire clamping ring to achieve the conduction between the special wire and the wire. The wire harness clamping and conveying assembly (9) then conveys the joined wire harness to the hot pressing welding station. Step 5: The hot-press welding assembly (7) moves the small-diameter heat shrink tube and the large-diameter heat shrink tube to the joint of the wire harness in sequence and performs hot pressing to shrink the heat shrink tube, thereby completing the sealing at the joint of the wire harness. The wire harness clamping and conveying assembly (9) conveys the wire harness to the unloading station. Step 6: Cooling and unloading assembly (8) clamps the finished wire harness to unload the finished wire harness. During the wire harness unloading process, the wire harness connector is cooled down.

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