A crimping device for automotive wiring harness cables

Abstract

The application belongs to the technical field of cable crimping, and particularly relates to a crimping device for automobile wire harness cable, which comprises a fixing frame, a crimping table, locking bolts, a preheating type pressing mechanism and a slow-recovery type crimping mechanism. The crimping table is arranged on the upper wall of the fixing frame, the locking bolts are arranged at one end of the fixing frame and are in threaded connection with the fixing frame, the preheating type pressing mechanism is arranged on the upper wall of the crimping table, and the slow-recovery type crimping mechanism is arranged on the preheating type pressing mechanism. The preheating type pressing mechanism comprises a pressing assembly, a heating assembly and a preheating assembly. The crimping device for automobile wire harness cable can preheat the terminal before crimping and detect the crimping effect between the terminal and the cable after crimping.

Description

Technical Field

[0001] This invention belongs to the field of cable crimping technology, specifically referring to a crimping device for automotive wiring harness cables. Background Technology

[0002] Crimping devices for automotive wiring harnesses and cables are crucial equipment in the automotive manufacturing and repair industry. They are specialized devices used to crimp wiring harnesses and cables to terminals, connectors, and other components, ensuring a secure connection between the wires and terminals and guaranteeing stable transmission of current and signals.

[0003] Current crimping equipment used for automotive wiring harnesses and cables has the following problems:

[0004] Existing crimping equipment for automotive wiring harnesses and cables lacks the ability to preheat terminals before crimping. On the one hand, this can easily cause cracks or damage to the terminals (or their insulating sheaths) when crimping them to the cables. On the other hand, it cannot guarantee the dryness of the crimping area, leading to increased contact resistance of the terminals due to electrochemical corrosion.

[0005] Furthermore, traditional crimping equipment used for automotive wiring harnesses and cables lacks the ability to test the crimping effect between the crimped terminals and cables, thus failing to guarantee the crimping quality between the terminals and cables.

[0006] Therefore, it cannot meet the current demand for automotive wiring harness and cable crimping equipment. Summary of the Invention

[0007] In order to overcome the shortcomings of the prior art, this solution provides a crimping device for automotive wiring harness cables that can preheat the terminals before crimping and detect the crimping effect between the terminals and the cables after crimping.

[0008] The technical solution adopted in this solution is as follows: This solution proposes a crimping device for automotive wiring harness cables, including a fixed frame, a crimping table, a locking bolt, a preheating type pressing mechanism, and a slow-returning type testing mechanism. The crimping table is located on the upper wall of the fixed frame, and the locking bolt is located at one end of the fixed frame and is threadedly connected to the fixed frame. The preheating type pressing mechanism is located on the upper wall of the crimping table, and the slow-returning type testing mechanism is located on the preheating type pressing mechanism. The preheating type pressing mechanism includes a pressing component, a heating component, and a preheating component. The pressing component is located on the fixed frame, the heating component is located inside the pressing component, and the preheating component is located on the crimping table. The slow-returning type testing mechanism includes a slow-lifting component, a suction component, a positioning component, and a pull-testing component. The slow-lifting component is located on the bottom wall of the crimping table, the suction component is located at the end of the fixed frame away from the pressing component, the positioning component is located on the upper wall of the crimping table, and the pull-testing component is located on one side of the preheating component.

[0009] As a further preferred embodiment of the present invention, the pressing assembly includes a pressing cylinder, a guide plate, guide columns, a pressing frame, and a pressing cylinder. The pressing cylinder is located on the upper wall of one end of the fixed frame. The guide plates are symmetrically arranged on the upper walls of both ends of the pressing platform. The guide columns penetrate the guide plates and are located on the bottom wall of the pressing platform. The pressing frame is slidably disposed between the guide columns above the guide plates. The pressing cylinder is located on the bottom wall of the pressing frame. The heating assembly includes a heating groove, a metal rod, a heating coil, and a radiation port. The heating groove is located inside the pressing frame, and the metal rod is located on the inner wall of the heating groove. The heating coil is located on the inner wall of the heating groove outside the metal rod, and multiple sets of radiation ports are located on the bottom wall of the pressing cylinder. The preheating assembly includes a preheating platform, a forming groove, a preheating spring, a limiting block, and a rubber block. The preheating platform is slidably disposed between the guide columns below the guide plate. The forming groove is located on the upper wall of the preheating platform and is open on three sides. The preheating spring is located between the bottom wall of the preheating platform and the upper wall of the pressing platform. The limiting block is located on the bottom wall of the pressing platform outside the guide columns. The rubber block is located on the upper wall of the preheating platform outside the guide columns and is in contact with the bottom wall of the guide plate.

[0010] In use, the terminal is placed inside the forming groove, and the stripped end of the cable is inserted into the terminal. The power end of the pressing cylinder shortens, causing the pressing frame to descend. The pressing frame causes the pressing cylinder to descend and enter the forming groove to fit against the upper wall of the terminal. The heating coil heats the metal rod, and the metal rod heats the inside of the heating groove. The heating groove radiates heat to the surface of the terminal through the radiation port.

[0011] The pressing cylinder continuously extends, pressing the terminal downwards. As the pressing cylinder presses the terminal downwards, the terminal drives the preheating platform to slide down along the guide column, overcoming the elastic force of the preheating spring. When the preheating platform is blocked by the limit block, it stops descending. The pressing cylinder crimps the terminal and cable inside the forming groove. During the process of the preheating spring being compressed and the preheating platform moving downwards, the heat radiated from the radiation port preheats the terminal, ensuring the crimping effect.

[0012] Preferably, the slow-lifting assembly includes a slow-lifting electromagnet and a slow-lifting metal block. The slow-lifting electromagnet is disposed on the bottom wall of the pressing platform outside the limiting block, and the slow-lifting metal block is disposed on the bottom wall of the preheating platform outside the guide post. The suction assembly includes a wire frame, a wire-fixing cylinder, a wire-fixing slide rod, an arc-shaped electromagnet, and a wire-fixing rubber strip. The wire frame is symmetrically disposed on the upper wall of the fixed frame at the end away from the pressing cylinder. The wire-fixing cylinder is rotatably disposed between the wire frames. The wire-fixing slide rod is symmetrically disposed on the upper and lower walls of the wire-fixing cylinder and slides with the wire-fixing cylinder. The system includes a moving connection, wherein the arc-shaped electromagnet is located on the side wall of the fixed wire slide rod inside the fixed wire cylinder, and the arc-shaped electromagnets are arranged opposite each other. Multiple sets of fixed wire rubber strips are located on the inner wall of the arc-shaped electromagnet. The positioning assembly includes a groove and a distance sensor. The groove is located on the bottom wall of the pressing platform inside the preheating spring, and the groove has an open top. The distance sensor is located inside the groove. The pull-test assembly includes a pull-test plate and a pull-test column. The pull-test plate is located on the side of the preheating platform near the pressing cylinder, and the pull-test column is located on the upper wall of the pull-test plate.

[0013] When in use, the slow-rising electromagnet generates magnetism when energized. The slow-rising electromagnet attracts the slow-rising metal block through magnetic force. Under the attraction of the magnetic force, the slow-rising metal block drives the preheating table to slide along the guide column and squeeze the preheating spring. The preheating spring shortens. The distance between the rubber block and the guide plate is set by the operator. The terminal is placed inside the forming groove. One end of the terminal is sleeved on the outside of the pull-test column. The stripped end of the cable is inserted into the terminal after passing through the wire fixing tube.

[0014] After the terminals and cables are crimped, the distance between the ranging sensor's measuring end and the preheating platform reaches its set threshold. The current flowing into the slowly rising electromagnet increases, strengthening the magnetic attraction of the electromagnet to the slowly rising metal block. After the pressed cylinder moves away from the forming groove, the magnetic force of the electromagnet on the slowly rising metal block keeps the preheating platform in a relatively fixed state. Simultaneously, the arc-shaped electromagnets, energized, generate magnetic force. These arc-shaped electromagnets, with opposite poles, attract each other and slide within the fixed-wire cylinder via the fixed-wire slide rod, driving... The rubber strips clamp the cable as they move towards each other. At this time, the current flowing into the slowly rising electromagnet decreases or disappears, and the preheating spring rebounds and pushes the preheating platform upward. When the preheating platform returns to the position where the terminal and cable are inserted, the cable has passed through one end of the cable-fixing tube to the required length. Since there is a reserved distance between the rubber block and the preheating platform, the preheating platform continues to rise under the elastic potential energy of the preheating spring. This allows the preheating platform to perform a pull test on the crimping part between the terminal and the cable through the pull test column, ensuring the crimping quality between the terminal and the cable.

[0015] Specifically, the side wall of the crimping station is equipped with a controller.

[0016] The controller is electrically connected to the pressing cylinder, heating coil, slow-rising electromagnet, arc electromagnet, and ranging sensor.

[0017] The beneficial effects achieved by this solution using the above structure are as follows:

[0018] Compared with existing technologies, this solution combines a preheating pressing mechanism with a slow-return testing mechanism. Through the inclusion of pressing, heating, preheating, slow-lifting, suction, positioning, and pulling components, the preheating spring shortens the travel distance. Under the heat radiation of the metal rod, on the one hand, it temporarily increases the flexibility of the terminal's plastic shell, reducing the risk of insulation cracking or micro-cracks during crimping; on the other hand, in high-humidity environments, it evaporates moisture, ensuring the crimping area is dry and preventing increased contact resistance due to electrochemical corrosion. Furthermore, the magnetic attraction of the slow-lifting electromagnet to the slow-lifting metal block delays the return action and speed of the preheating spring, enabling monitoring of the crimping quality between the terminal and the cable, thereby improving the efficiency of the crimping equipment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this solution;

[0020] Figure 2 This is the front perspective stereoscopic view of this solution;

[0021] Figure 3 This is a bottom-view perspective of the design.

[0022] Figure 4 This is a schematic diagram of the preheating component in this solution;

[0023] Figure 5 This is a schematic diagram of the combined structure of the fixing frame and the pressing table in this solution;

[0024] Figure 6 This is a schematic diagram of the pressing assembly in this solution;

[0025] Figure 7 This is the main view of this solution;

[0026] Figure 8 This is the left view of this scheme;

[0027] Figure 9 This is the right view of the scheme;

[0028] Figure 10 This is a top view of the plan;

[0029] Figure 11 for Figure 10 Sectional view of AA section;

[0030] Figure 12 for Figure 11 Enlarged structural view of section I;

[0031] Figure 13 for Figure 9 Enlarged structural view of Part II.

[0032] The components include: 1. Fixed frame; 2. Pressing table; 3. Locking bolt; 4. Preheating pressing mechanism; 5. Pressing assembly; 6. Pressing cylinder; 7. Guide plate; 8. Guide column; 9. Pressing frame; 10. Pressing cylinder; 11. Heating assembly; 12. Heating groove; 13. Metal rod; 14. Heating coil; 15. Radiant port; 16. Preheating assembly; 17. Preheating table; 18. Forming groove; 19. Preheating spring; 20. Limiting block. 21. Rubber block; 22. Slow-return measuring and connecting mechanism; 23. Slow-rise component; 24. Slow-rise electromagnet; 25. Slow-rise metal block; 26. Suction component; 27. Wire frame; 28. Wire-fixing cylinder; 29. ​​Wire-fixing slide bar; 30. Arc-shaped electromagnet; 31. Wire-fixing rubber strip; 32. Positioning component; 33. Groove; 34. Distance sensor; 35. Pull-up measuring component; 36. Pull-up measuring plate; 37. Pull-up measuring column; 38. Controller.

[0033] The accompanying drawings are provided to further understand the present solution and form part of the specification. They are used together with the embodiments of the present solution to explain the present solution and do not constitute a limitation thereof. Detailed Implementation

[0034] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this solution, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this solution without creative effort are within the scope of protection of this solution.

[0035] In the description of this solution, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this solution and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this solution.

[0036] like Figures 1-13As shown, this solution proposes a crimping device for automotive wiring harnesses and cables, comprising a fixing frame 1, a crimping table 2, a locking bolt 3, a preheating type pressing mechanism 4, and a slow-return type testing mechanism 22. The crimping table 2 is located on the upper wall of the fixing frame 1, and the locking bolt 3 is located at one end of the fixing frame 1 and threadedly connected to the fixing frame 1. The preheating type pressing mechanism 4 is located on the upper wall of the crimping table 2, and the slow-return type testing mechanism 22 is located on the preheating type pressing mechanism 4. The preheating type pressing mechanism 4 includes a pressing assembly 5, a heating assembly 11, and... The preheating component 16 is provided. The pressing component 5 is mounted on the fixed frame 1. The heating component 11 is located inside the pressing component 5. The preheating component 16 is mounted on the pressing platform 2. The slow-recovery testing mechanism 22 includes a slow-lifting component 23, a suction component 26, a positioning component 32, and a pull-testing component 35. The slow-lifting component 23 is located on the bottom wall of the pressing platform 2. The suction component 26 is located at the end of the fixed frame 1 away from the pressing component 5. The positioning component 32 is located on the upper wall of the pressing platform 2. The pull-testing component 35 is located on one side of the preheating component 16.

[0037] The pressing assembly 5 includes a pressing cylinder 6, a guide plate 7, a guide post 8, a pressing frame 9, and a pressing cylinder 10. The pressing cylinder 6 is located on the upper wall of one end of the fixed frame 1. The guide plate 7 is symmetrically arranged on the upper walls of both ends of the pressing platform 2. The guide post 8 passes through the guide plate 7 and is located on the bottom wall of the pressing platform 2. The pressing frame 9 is slidably disposed between the guide posts 8 above the guide plate 7. The pressing cylinder 10 is located on the bottom wall of the pressing frame 9. The heating assembly 11 includes a heating groove 12, a metal rod 13, a heating coil 14, and a radiation port 15. The heating groove 12 is located inside the pressing frame 9. The metal rod 13 is located on the inner wall of the heating groove 12. The heating coil 14 is located on the metal rod 15. The heating groove 12 on the outer side of rod 13 has multiple sets of radiation ports 15 located on the bottom wall of the pressing cylinder 10; the preheating assembly 16 includes a preheating platform 17, a forming groove 18, a preheating spring 19, a limiting block 20, and a rubber block 21. The preheating platform 17 is slidably disposed between the guide columns 8 below the guide plate 7. The forming groove 18 is located on the upper wall of the preheating platform 17 and is open on three sides. The preheating spring 19 is located between the bottom wall of the preheating platform 17 and the upper wall of the pressing platform 2. The limiting block 20 is located on the bottom wall of the pressing platform 2 outside the guide column 8. The rubber block 21 is located on the upper wall of the preheating platform 17 outside the guide column 8 and is in contact with the bottom wall of the guide plate 7.

[0038] The gradual lifting assembly 23 includes a gradual lifting electromagnet 24 and a gradual lifting metal block 25. The gradual lifting electromagnet 24 is disposed on the bottom wall of the pressing platform 2 outside the limiting block 20, and the gradual lifting metal block 25 is disposed on the bottom wall of the preheating platform 17 outside the guide post 8. The attraction assembly 26 includes a wire frame 27, a wire fixing cylinder 28, a wire fixing slide rod 29, an arc-shaped electromagnet 30, and a wire fixing rubber strip 31. The wire frame 27 is symmetrically disposed on the upper wall of the fixed frame 1 at the end away from the pressing cylinder 6. The wire fixing cylinder 28 is rotatably disposed between the wire frames 27. The wire fixing slide rod 29 is symmetrically disposed on the upper and lower walls of the wire fixing cylinder 28 and is slidably connected to the wire fixing cylinder 28. The arc-shaped electromagnet 30 is located on the side wall of the wire-fixing slide rod 29 inside the wire-fixing cylinder 28. The arc-shaped electromagnets 30 are arranged opposite each other. Multiple sets of wire-fixing rubber strips 31 are located on the inner wall of the arc-shaped electromagnet 30. The positioning component 32 includes a groove 33 and a distance sensor 34. The groove 33 is located on the bottom wall of the pressing platform 2 inside the preheating spring 19. The groove 33 is open at the top. The distance sensor 34 is located inside the groove 33. The pull-test component 35 includes a pull-test plate 36 and a pull-test column 37. The pull-test plate 36 is located on the side of the preheating platform 17 near the pressing cylinder 6. The pull-test column 37 is located on the upper wall of the pull-test plate 36.

[0039] The side wall of the crimping station 2 is equipped with a controller 38.

[0040] The controller 38 is electrically connected to the pressing cylinder 6, the heating coil 14, the slow-rising electromagnet 24, the arc electromagnet 30, and the ranging sensor 34, respectively.

[0041] In practical use, the fixing frame 1 is placed on the workbench, and the locking bolt 3 is rotated to fix the fixing frame 1 in place with the workbench. In the initial state, the power end of the pressing cylinder 6 is in the extended state, and the distance between the measuring end of the ranging sensor 34 and the bottom wall of the preheating table 17 is at its maximum value. When it is necessary to crimp the cable terminal connector, the controller 38 controls the slow-lifting electromagnet 24 to start. The slow-lifting electromagnet 24 generates magnetism when energized. The slow-lifting electromagnet 24 attracts the slow-lifting metal block 25 through magnetic force. Under the attraction of the magnetic force, the slow-lifting metal block 25 drives the preheating table 17 to slide along the guide column 8 and squeeze the preheating spring 19. The preheating spring 19 shortens, and the controller 38 controls the ranging sensor 34 to start. The ranging sensor 34 measures the distance between itself and the bottom wall of the preheating table 17 through the measuring end. At this time, the distance between the rubber block 21 and the guide plate 7 is maintained within the distance range set by the operator. The distance between the rubber block 21 and the guide plate 7 is the inertial sliding space when the preheating spring 19 rebounds and resets, which is convenient for pulling and testing the crimped terminal and cable.

[0042] The terminal is placed inside the forming groove 18, and one end of the terminal is sleeved on the outside of the pull-test column 37. The stripped end of the cable passes through the wire-fixing cylinder 28 and is inserted into the terminal. The controller 38 controls the arc electromagnet 30 to start. The arc electromagnet 30 generates magnetic force when energized. The arc electromagnets 30 are set with opposite poles. The arc electromagnets 30 attract each other. The wire-fixing slide bar 29 slides along the wire-fixing cylinder 28, which drives the wire-fixing rubber strip 31 to move relative to clamp the cable.

[0043] The controller 38 controls the start of the pressing cylinder 6. The power end of the pressing cylinder 6 shortens, causing the pressing frame 9 to descend. The pressing frame 9 causes the pressing cylinder 10 to descend and enter the forming groove 18 to fit against the upper wall of the terminal. Initially, the cable and the terminal are connected at an inclined angle. During the pressing process, as the preheating table 17 moves down, the cable is gradually straightened and eventually connected to the terminal in a straight line. This effectively prevents the cable from coming out of the terminal during the pressing process and ensures that the cable is always tightly connected to the inside of the terminal when it descends.

[0044] The controller 38 controls the heating coil 14 to start, the heating coil 14 heats the metal rod 13, the metal rod 13 heats the inside of the heating groove 12, and the heating groove 12 radiates heat to the surface of the terminal through the radiation port 15. As the power end of the pressing cylinder 6 continues to extend, the pressing cylinder 10 continues to press down on the terminal. The terminal drives the preheating platform 17 to slide down along the guide column against the elastic force of the preheating spring 19. During the process of the preheating spring 19 being compressed and the preheating platform 17 moving down, the heat radiated from the radiation port 15 preheats the terminal to ensure the crimping effect. When the preheating platform 17 drives the slowly rising metal block 25 to fit with the limiting block 20, the preheating platform 17 stops descending due to the obstruction of the limiting block 20, and the pressing cylinder 10 continues to descend to crimp the terminal and cable inside the forming groove 18.

[0045] The controller 38 controls the starting of the ranging sensor 34. When the slowly rising metal block 25 is in contact with the limit block 20, the distance between the ranging end of the ranging sensor 34 and the preheating table 17 reaches the set ranging threshold. The controller 38 controls the increase of the current entering the slowly rising electromagnet 24. The magnetic attraction of the slowly rising electromagnet 24 to the slowly rising metal block 25 is enhanced. After the terminal and cable are crimped, the controller 38 controls the extension of the power end of the pressing cylinder 6. The pressing frame 9 drives the pressing cylinder 10 to rise. After the pressing cylinder 10 is away from the inside of the forming groove 18, the preheating table 17 is kept in a relatively fixed state due to the magnetic attraction of the slowly rising electromagnet 24 to the slowly rising metal block 25.

[0046] After the pressing frame 9 drives the pressing cylinder 10 to fully reset, the controller 38 controls the current flowing into the slow-rising electromagnet 24 to decrease or disappear. The preheating spring 19 rebounds and pushes the preheating platform 17 to rise. When the preheating platform 17 resets to the position where the terminal and cable are plugged in, the cable stretches to the length of the cable passing through the end of the cable retainer 28. Since there is a reserved distance between the rubber block 21 and the guide plate 7, the preheating platform 17 continues to rise under the action of the elastic potential energy of the preheating spring 19. The cable generates a pulling force on the rising inertia of the preheating platform 17 through the terminal, so that the preheating platform 17 applies an upward pulling force to the terminal through the pull test column 37, thereby testing the firmness of the terminal and cable crimping point.

[0047] When the preheating table 17 is pushed to the rubber block 21 and the guide plate 7 by the rebound reset of the preheating spring 19, the distance between the measuring end of the ranging sensor 34 and the bottom wall of the preheating table 17 reaches the maximum value. If the crimping point is detached or the cable is pulled out from the terminal at this time, it means that the crimping quality is unqualified. Otherwise, the crimping quality meets the operator's requirements.

[0048] The controller 38 controls the arc electromagnet 30 to be de-energized and demagnetized. The operator removes the terminal from the outside of the pull-test column 37 and pulls the cable out from inside the cable holder 28. The above operation can be repeated for the next use.

[0049] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0050] The present solution and its implementation methods have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present solution; the actual structure is not limited to this. In conclusion, if a person skilled in the art, inspired by this description, designs a similar structure and embodiment without departing from the inventive intent of this solution, such design should fall within the protection scope of this solution.

Claims

1. A crimping device for automotive wiring harness cables, comprising a mounting bracket, a crimping table, and locking bolts, characterized in that: It also includes a preheating type pressing mechanism and a slow-return type measuring and connecting mechanism. The pressing platform is located on the upper wall of the fixed frame, and the locking bolt is located at one end of the fixed frame. The locking bolt is threadedly connected to the fixed frame. The preheating type pressing mechanism is located on the upper wall of the pressing platform, and the slow-return type measuring and connecting mechanism is located on the preheating type pressing mechanism. The preheating type pressing mechanism includes a pressing component, a heating component, and a preheating component. The pressing component is located on the fixed frame, the heating component is located inside the pressing component, and the preheating component is located on the pressing platform. The slow-return type measuring and connecting mechanism includes a slow-lifting component, a suction component, a positioning component, and a pulling and testing component. The slow-lifting component is located on the bottom wall of the pressing platform, the suction component is located at the end of the fixed frame away from the pressing component, the positioning component is located on the upper wall of the pressing platform, and the pulling and testing component is located on one side of the preheating component. The pressing assembly includes a pressing cylinder, a guide plate, and guide pillars; The preheating assembly includes a preheating table, a molding tank, a preheating spring, a limiting block, and a rubber block; The preheating table is slidably positioned between the guide columns below the guide plate, the forming groove is located on the upper wall of the preheating table, the preheating spring is located between the bottom wall of the preheating table and the upper wall of the pressing table, the limiting block is located on the bottom wall of the pressing table outside the guide column, and the rubber block is located on the upper wall of the preheating table outside the guide column. The slow-rise component includes a slow-rise electromagnet and a slow-rise metal block; The slow-rising electromagnet is located on the bottom wall of the pressing platform outside the limiting block, and the slow-rising metal block is located on the bottom wall of the preheating platform outside the guide column. The tensile testing assembly includes a tensile testing plate and a tensile testing column; The pull test plate is located on the side of the preheating platform near the pressing cylinder, and the pull test column is located on the upper wall of the pull test plate.

2. The crimping device for automotive wiring harnesses and cables according to claim 1, characterized in that: The pressing assembly further includes a pressing frame and a pressing cylinder. The pressing cylinder is located on the upper wall of one end of the fixed frame. The guide plates are symmetrically located on the upper walls of both ends of the pressing platform. The guide pillars penetrate the guide plates and are located on the bottom wall of the pressing platform. The pressing frame is slidably located between the guide pillars above the guide plates. The pressing cylinder is located on the bottom wall of the pressing frame.

3. The crimping device for automotive wiring harnesses and cables according to claim 2, characterized in that: The heating assembly includes a heating groove, a metal rod, a heating coil, and a radiation port. The heating groove is located inside the pressing frame, the metal rod is located on the inner wall of the heating groove, the heating coil is located on the inner wall of the heating groove outside the metal rod, and multiple sets of radiation ports are located on the bottom wall of the pressing cylinder.

4. The crimping device for automotive wiring harness cables according to claim 1, characterized in that: The forming groove is open on three sides.

5. A crimping device for automotive wiring harnesses and cables according to claim 1, characterized in that: The rubber block is attached to the bottom wall of the guide plate.

6. A crimping device for automotive wiring harnesses and cables according to claim 3, characterized in that: The attraction assembly includes a wire frame, a wire-fixing cylinder, a wire-fixing slide rod, an arc-shaped electromagnet, and wire-fixing rubber strips. The wire frame is symmetrically arranged on the upper wall of the fixed frame at the end away from the pressing cylinder. The wire-fixing cylinder is rotatably arranged between the wire frames. The wire-fixing slide rod is symmetrically arranged on the upper and lower walls of the wire-fixing cylinder and is slidably connected to the wire-fixing cylinder. The arc-shaped electromagnet is arranged on the side wall of the wire-fixing slide rod inside the wire-fixing cylinder. The arc-shaped electromagnets are arranged opposite each other. Multiple sets of wire-fixing rubber strips are arranged on the inner wall of the arc-shaped electromagnet.

7. A crimping device for automotive wiring harnesses and cables according to claim 6, characterized in that: The positioning component includes a groove and a distance sensor. The groove is located on the bottom wall of the pressing platform inside the preheating spring, and the groove has an opening at the top. The distance sensor is located inside the groove.

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