Automotive wire harness welding connection equipment

Abstract

The utility model relates to the technical field of wire harness welding, in particular to wire harness welding connection equipment for a vehicle. Comprising a workbench, a side plate is fixedly connected to the upper side of the workbench, a welding assembly is arranged on one side of the side plate, two sliding grooves are formed in the upper side of the workbench, sliding blocks are slidably connected into the two sliding grooves, the upper sides of the sliding blocks are flush with the upper side of the workbench, and fixing devices are arranged on the upper sides of the sliding blocks. The movable rod is pulled to drive the fixing plate to move, pressing blocks on the lower side of the fixing plate are made to correspond to wire harnesses in the arc-shaped grooves in a one-to-one mode to fix the wire harnesses, waste products caused by inaccurate welding spots due to the fact that the wire harnesses move in the welding process are prevented, the two lead screws are driven by the servo motor to rotate, and the two lead screws drive the mounting base to move reversely, so that the welding quality is improved. Workers can place the wire harnesses to be welded on the fixing seats alternately, so that circular welding is realized, and the welding efficiency is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of wire harness welding technology, and more specifically, to a welding and connection device for automotive wire harnesses. Background Technology

[0002] In the manufacturing process of automotive wiring harnesses, the connection between wire harnesses and between wire harnesses and electronic components is a critical step. Traditional connection methods, such as crimping and bolting, while achieving electrical connections to a certain extent, have many limitations. Welding, as a reliable connection method, is gradually being widely used in automotive wiring harness manufacturing. Welding can achieve permanent connections between wire harnesses, and between wire harnesses and terminals or electronic components, offering advantages such as high connection strength, good electrical performance, and strong resistance to vibration and environmental changes.

[0003] Currently, most existing wire harness welding connection equipment relies on manual labor. The wire harness and terminals are placed overlapping on the welding table, and the operator connects them by hand before welding. However, hand tremors inevitably occur when holding the wire harness, leading to welding errors. Manual operation is also labor-intensive. Furthermore, when the wire harness has multiple wires, the operator needs to weld them separately, increasing welding time and labor costs. Manual welding is also prone to missed welds and misaligned welds, resulting in a higher number of defective products requiring rework, a lower welding pass rate, and impacting production efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a welding and connecting device for automotive wire harnesses to solve the problems mentioned in the background art. A welding and connecting device for automotive wire harnesses includes a worktable, a side plate fixedly connected to the upper side of the worktable, a welding assembly disposed on one side of the side plate, two sliding grooves formed on the upper side of the worktable, and sliders slidably connected inside the two sliding grooves. The upper side of the sliders is flush with the upper side of the worktable. A fixing device is disposed on the upper side of the sliders for clamping the wire harness. The fixing device includes a mounting base fixedly connected to the upper side of the sliders, two support plates fixedly connected to the upper side of the mounting base, the support plates being symmetrically arranged, a moving rod slidably connected inside the two support plates, and a fixing plate fixedly connected to the lower side of the moving rods. The lower surface of the fixing plate is in contact with the upper surface of the mounting base. A moving device is disposed inside the worktable for driving the two sliders to move alternately.

[0005] As a further improvement to this technical solution, the mounting base has multiple arc-shaped grooves inside, and multiple pressing blocks that are adapted to the arc-shaped grooves are fixedly connected to the lower side of the fixing plate.

[0006] As a further improvement to this technical solution, two limiting rods are fixedly connected to the upper side of the fixing plate, and the outer sides of the two limiting rods are slidably connected to the inner side of the support plate. A compression spring is fixedly connected to the upper side of the fixing plate and the lower side of the support plate, and the compression spring is sleeved on the outside of the limiting rods.

[0007] As a further improvement to this technical solution, the moving device includes two lead screws rotatably connected inside the worktable, the threads of the two lead screws being arranged in opposite directions, and the outer surfaces of the two lead screws being threadedly connected to the inner surfaces of the slider.

[0008] As a further improvement to this technical solution, a servo motor is fixedly connected inside the worktable, and the output end of the servo motor is fixedly connected to one end of the lead screw. A belt is fitted on one side of the two lead screws.

[0009] As a further improvement to this technical solution, a threaded rod is rotatably connected inside the side plate. One end of the threaded rod passes through one side of the side plate and is fixedly connected to a drive motor. A movable block is threadedly connected to the outside of the threaded rod. An electric telescopic rod is fixedly connected to the lower side of the movable block. The lower end of the electric telescopic rod is fixedly connected to the upper end of the welding assembly.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: By passing multiple wire harnesses sequentially through the mounting base and placing them in the arc-shaped groove, pulling the moving rod drives the fixing plate to move, so that the pressing blocks on the lower side of the fixing plate correspond one-to-one with the wire harnesses inside the arc-shaped groove to fix them. The pressing blocks can be used for different types of wire harnesses, preventing the wire harnesses from moving during welding, which would lead to inaccurate welds and waste products, thus achieving the purpose of saving resources. By driving two lead screws to rotate through a servo motor, the two lead screws drive the mounting base to move in opposite directions, allowing the operator to alternately place the wire harnesses to be welded on the fixing base, thereby realizing cyclic welding and effectively improving welding efficiency. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a cross-sectional schematic diagram of the utility model;

[0013] Figure 3 This is a schematic diagram of the structure of the utility model fixing device;

[0014] Figure 4 This is a schematic diagram of the structure of the pressing block of the utility model.

[0015] The meanings of the labels in the diagram are as follows:

[0016] 1. Workbench; 11. Side plate; 12. Welding assembly; 13. Slide rail; 14. Drive motor; 15. Threaded rod; 16. Movable block; 17. Slider;

[0017] 2. Fixing device; 21. Mounting base; 22. Arc groove; 23. Moving rod; 24. Fixing plate; 25. Limiting rod; 26. Pressing block; 27. Support plate;

[0018] 3. Moving device; 32. Lead screw; 33. Belt; 34. Servo motor. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] Example 1

[0022] Please see Figures 1-4As shown, this embodiment provides a welding and connection device for automotive wire harnesses, including a workbench 1. A side plate 11 is fixedly connected to the upper side of the workbench 1. A welding assembly 12 is provided on one side of the side plate 11. Two sliding grooves 13 are formed on the upper side of the workbench 1. A slider 17 is slidably connected inside the two sliding grooves 13. The upper side of the slider 17 is flush with the upper side of the workbench 1. A fixing device 2 is provided on the upper side of the slider 17. The fixing device 2 is used to clamp the wire harness. The fixing device 2 includes a mounting base 21 fixedly connected to the upper side of the slider 17. The mounting base 21 has multiple arc-shaped grooves 22 inside. The multiple arc-shaped grooves 22 can weld multiple wire harnesses, improving the welding efficiency of the wire harness. Two support plates 27 are fixedly connected to the upper side of the mounting base 21, and the support plates 27 are symmetrically arranged. A moving rod 23 is slidably connected inside the two support plates 27. A fixing plate 24 is fixedly connected to the lower side of the moving rod 23. The lower surface of the fixing plate 24 is in contact with the upper surface of the mounting base 21. In use, the moving rod 23 is first pulled upward, which moves the fixing plate 24 upward and compresses the spring. Then, multiple wire harnesses are passed through the mounting base 21 in sequence and placed in the arc groove 22. After determining the position to be welded, the moving rod 23 is released, and the fixing plate 24 is reset under the reaction force of the compression spring. Multiple pressing blocks 26 that are adapted to the arc groove 22 are fixedly connected to the lower side of the fixing plate 24, so that the pressing blocks 26 on the lower side of the fixing plate 24 correspond one-to-one with the wire harnesses inside the arc groove 22 for fixing. The pressing blocks 26 can be used for different types of wire harnesses, preventing the wire harnesses from moving during welding, resulting in inaccurate welds and scrap, increasing costs, and achieving the purpose of saving resources.

[0023] Please see Figure 3 and Figure 4 As shown, two limiting rods 25 are fixedly connected to the upper side of the fixing plate 24. The outer side of the two limiting rods 25 is slidably connected to the inner side of the support plate 27. A compression spring is fixedly connected to the upper side of the fixing plate 24 and the lower side of the support plate 27. The compression spring is sleeved on the outer side of the limiting rods 25. When fixing the wire harness, the two limiting rods 25 make the fixing plate 24 more stable during movement, ensuring that each wire harness can be fixed.

[0024] Please see Figure 2As shown, the moving device 3 includes two lead screws 32 rotatably connected inside the worktable 1. The threads of the two lead screws 32 are arranged in opposite directions. The outer threads of the two lead screws 32 are connected to the inner threads of the slider 17. A servo motor 34 is fixedly connected inside the worktable 1. The output end of the servo motor 34 is fixedly connected to one end of the lead screw 32. A belt 33 is sleeved on one side of the two lead screws 32. Then, the servo motor 34 is started to rotate. The servo motor 34 drives the two lead screws 32 to rotate through the belt 33. The rotation of the lead screws 32 drives the slider 17 to move. The slider 17 drives the mounting base 21 to move synchronously. When one lead screw 32 drives the mounting base 21 to move towards the welding assembly 12, the mounting base 21 on the other lead screw 32 moves away from the welding assembly 12. When the slider 17 drives the mounting base 21 to move below the welding assembly 12, a threaded rod 15 is rotatably connected inside the side plate 11. One end of the threaded rod 15 passes through one side of the side plate 11 and is fixedly connected to the drive motor 14. The threaded rod 15 is externally threaded to a movable block 16. An electric telescopic rod is fixedly connected to the lower side of the movable block 16. The lower end of the electric telescopic rod is fixedly connected to the upper end of the welding assembly 12. The drive motor 14 is started to drive the threaded rod 15 to rotate. The rotation of the threaded rod 15 drives the movable block 16 to move laterally. After the position of the welding assembly 12 is adjusted, the welding assembly 12 is located directly above the mounting base 21. The electric telescopic rod is started to drive the welding assembly 12 to move downward. The wire harnesses on the mounting base 21 are welded in sequence. At this time, the worker places the wire harness to be welded on another mounting base 21. After the welding is completed, the servo motor 34 is started to rotate in the opposite direction. The mounting base 21 after welding is completed moves away from the welding assembly 12, and the other wire harness to be welded moves towards the welding assembly 12, thereby realizing cyclic welding.

[0025] In practical use, the automotive wire harness welding and connection equipment of this embodiment first pulls the moving rod 23 upward. The moving rod 23 drives the fixing plate 24 upward and squeezes the compression spring. Then, multiple wire harnesses are passed through the mounting base 21 in sequence and placed in the arc-shaped groove 22. After determining the position to be welded, the moving rod 23 is released. Under the reaction force of the compression spring, the fixing plate 24 is reset, so that the pressing block 26 on the lower side of the fixing plate 24 corresponds one-to-one with the wire harness inside the arc-shaped groove 22 to fix it. The pressing block 26 can be used for different types of wire harnesses to prevent the wire harness from moving during welding, which would lead to inaccurate welds and waste products, thus achieving the purpose of saving resources. Then, the servo motor 34 is started to rotate. The servo motor 34 drives two lead screws through the belt 33. When screw 32 rotates, mounting base 21 moves synchronously. When one screw 32 drives mounting base 21 to move towards welding assembly 12, mounting base 21 on the other screw 32 moves away from welding assembly 12. When slider 17 drives mounting base 21 to move below welding assembly 12, the electric telescopic rod can be activated to drive welding assembly 12 downward, and the wire harnesses on mounting base 21 are welded sequentially. At this time, the worker places the wire harness to be welded on another mounting base 21. After welding is completed, servo motor 34 is activated to rotate in the opposite direction. The welding completed mounting base 21 moves away from welding assembly 12, and another wire harness to be welded moves towards welding assembly 12, thereby realizing cyclic welding.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A welding and connection device for automotive wiring harnesses, comprising a workbench (1), characterized in that: A side plate (11) is fixedly connected to the upper side of the workbench (1). A welding assembly (12) is provided on one side of the side plate (11). Two sliding grooves (13) are opened on the upper side of the workbench (1). A slider (17) is slidably connected inside the two sliding grooves (13). The upper side of the slider (17) is flush with the upper side of the workbench (1). A fixing device (2) is provided on the upper side of the slider (17). The fixing device (2) is used to clamp the wire harness. The fixing device (2) includes components fixedly connected to the slider (17). The upper side of the mounting base (21) has two support plates (27) fixedly connected to its upper side, and the support plates (27) are symmetrically arranged. The two support plates (27) are slidably connected to a moving rod (23). The lower side of the moving rod (23) is fixedly connected to a fixing plate (24). The lower surface of the fixing plate (24) is in contact with the upper surface of the mounting base (21). The worktable (1) is equipped with a moving device (3) inside, which is used to drive the two sliders (17) to move alternately.

2. The automotive wiring harness welding and connection equipment according to claim 1, characterized in that: The mounting base (21) has multiple arc-shaped grooves (22) inside, and multiple pressing blocks (26) that are adapted to the arc-shaped grooves (22) are fixedly connected to the lower side of the fixing plate (24).

3. The automotive wiring harness welding and connection equipment according to claim 1, characterized in that: Two limiting rods (25) are fixedly connected to the upper side of the fixing plate (24). The outer side of the two limiting rods (25) is slidably connected to the inner side of the support plate (27). A compression spring is fixedly connected to the upper side of the fixing plate (24) and the lower side of the support plate (27), and the compression spring is sleeved on the outer side of the limiting rods (25).

4. The automotive wiring harness welding and connection equipment according to claim 1, characterized in that: The moving device (3) includes two lead screws (32) rotatably connected inside the worktable (1), the threads of the two lead screws (32) are arranged oppositely, and the outside of the two lead screws (32) is threadedly connected to the inside of the slider (17).

5. The automotive wiring harness welding and connection equipment according to claim 1, characterized in that: A servo motor (34) is fixedly connected inside the workbench (1). The output end of the servo motor (34) is fixedly connected to one end of the lead screw (32). A belt (33) is fitted on one side of the two lead screws (32).

6. The automotive wiring harness welding and connection equipment according to claim 1, characterized in that: The side plate (11) is rotatably connected to a threaded rod (15). One end of the threaded rod (15) passes through one side of the side plate (11) and is fixedly connected to a drive motor (14). The threaded rod (15) is threadedly connected to a movable block (16). An electric telescopic rod is fixedly connected to the lower side of the movable block (16). The lower end of the electric telescopic rod is fixedly connected to the upper end of the welding assembly (12).

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