A harness both ends batch tinning device

Abstract

The utility model discloses a kind of harness two-end batch tinning devices, including tinning furnace, the tinning furnace top surface fixedly connected fixed block, the fixed block top surface fixedly connected cylinder, the cylinder piston rod output end fixedly connected connecting rod, the connecting rod bottom end fixedly connected lifting block.The utility model can limit when placing harness body one end abuts against limit plate, simultaneously can be clamped and fixed to the batch harness body of placement, by setting cylinder, connecting rod, lifting block, motor etc., by the batch harness body of clamping and rotating 90 degrees to left, then lower harness body so that one end of harness body is immersed in tin solution and tinned, then can be rotated to original position, then again harness body is rotated 90 degrees to right, another end of harness body can be immersed in tin solution and tinned by lowering, the both ends of the batch harness body can be tinned, without manually replacing harness another end and re-clamping, improve tinning efficiency.

Description

Technical Field

[0001] This utility model relates to the field of wire harness tin plating technology, specifically a device for batch tin plating at both ends of a wire harness. Background Technology

[0002] In the production of electronic products, a large number of wire harnesses are used. However, in order to prevent the ends of the wire harnesses from being exposed to the air for a long time, which would cause the contact surface to oxidize and increase the contact resistance of the wires, the ends of the wire harnesses are usually tinned.

[0003] For example, Chinese utility model patent CN211879762U discloses a wire tinning device for tin-plated wire processing, including a worktable with a cutting structure and a tinning structure. The cutting structure is located in front of the tinning structure. The cutting structure includes a bracket with a cylinder fixed to its rear end. Two cylinders are mounted on the bracket, and rotating blocks are symmetrically rotatably connected to the two cylinders. The rotating blocks and the cylinder are movably connected by a connecting rod. Connecting blocks are symmetrically arranged at adjacent ends of the rotating blocks. Cutting scissors are located at the rear end of the connecting blocks, and a stripping knife is located at the front end of the connecting blocks. This utility model uses the cutting structure to strip the wire harness at the end, and the tinning structure automatically tinns the stripped wire harness, reducing the influence of manual factors, saving time, and improving production efficiency. It can also adapt to different wire harness thicknesses by changing the stripping knife and the stripping length by adding or removing pads, thus meeting different usage requirements.

[0004] However, existing wire harness tinning equipment can only tin-plate one end of a wire harness during tinning. The other end of the wire harness needs to be manually replaced and re-clamped, resulting in low work efficiency.

[0005] To address this issue, we propose a batch tin plating device for both ends of wire harnesses. Utility Model Content

[0006] The purpose of this invention is to provide a device for batch tin plating at both ends of a wire harness, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a batch tin plating device for both ends of a wire harness, comprising a tin plating furnace, a fixing block fixedly connected to the top surface of the tin plating furnace, a cylinder fixedly installed on the top surface of the fixing block, a connecting rod fixedly connected to the output end of the piston rod of the cylinder, and a lifting block fixedly connected to the bottom end of the connecting rod; A motor is fixedly installed on one side of the lifting block. One end of a rotating rod is fixedly connected to the motor shaft. A C-shaped frame is fixedly connected to the other end of the rotating rod. A threaded hole is opened at the top of the C-shaped frame. A rotating screw is threadedly connected to the threaded hole. A rotating block is fixedly connected to the top of the rotating screw. A connecting round block is fixedly connected to the bottom of the rotating screw. A limiting round block is fixedly connected to the bottom surface of the connecting round block. The connecting round block and the limiting round block are rotatably connected to the inside of the pressure plate. A rubber pad is fixedly provided on the bottom surface of the pressure plate. Multiple placement grooves are opened on the inner bottom surface of the C-shaped frame. A rubber pad is fixedly provided on the inner wall of the placement groove. An opening is provided on one side of the fixed block, and a limiting plate is slidably connected inside the opening. A handle is fixedly attached to the end of the limiting plate.

[0008] Preferably, a positioning rod is fixed to the bottom surface of the opening, a positioning groove is formed at one end of the bottom surface of the limiting plate, and a positioning groove is formed at the other end of the bottom surface of the limiting plate. The positioning groove is engaged with the positioning rod.

[0009] Preferably, a sliding groove is provided on one side of the fixed block, and the lifting block is slidably connected to the sliding groove.

[0010] Preferably, limiting blocks are fixedly connected to both sides of the lifting block, and limiting grooves are opened on both sides of the sliding through groove, with the limiting blocks slidably connected to the limiting grooves.

[0011] Preferably, the pressure plate is slidably connected to the C-shaped frame, a limiting slider is fixedly connected to one side of the pressure plate, a limiting groove is opened on one side of the C-shaped frame, and the limiting slider is slidably connected to the limiting groove.

[0012] Preferably, multiple protrusions are fixedly attached to the outer surface of the rotating block, and a heating tube is fixedly installed inside the tin plating furnace.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This utility model, by setting a limiting plate, handle, positioning rod, etc., can limit the wire harness body by having one end abut against the limiting plate when placing it. By setting a placement groove, rubber pad II, rotating screw, connecting block, limiting block, pressure plate, rubber pad I, etc., a batch of placed wire harness bodies can be clamped and fixed. By setting a cylinder, connecting rod, lifting block, motor, etc., the clamped batch of wire harness bodies can be rotated 90 degrees to the left, and then the wire harness body can be lowered so that one end of the wire harness body is immersed in molten solder for tin plating. Then it can be rotated back to the original position, and then the wire harness body can be rotated 90 degrees to the right to lower the other end of the wire harness body for tin plating. Both ends of the batch of wire harness bodies can be tin-plated without manually replacing the other end of the wire harness and re-clamping it, thus improving the tin plating efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a partial structural diagram of the present invention; Figure 3 This is a schematic diagram of a partial structural side view of the present invention. Figure 4 This is a frontal cross-sectional view of a partial structure of the present invention; Figure 5 This is a side view sectional diagram of a partial structure of this utility model.

[0015] In the diagram: 1. Tin plating furnace; 2. Heating tube; 3. Temperature sensor; 4. Standard liquid level line; 5. Fixing block; 51. Sliding groove; 511. Limiting groove; 52. Through port; 6. Cylinder; 7. Connecting rod; 8. Lifting block; 81. Limiting block; 9. Motor; 10. Rotating rod; 11. C-shaped frame; 111. Threaded hole; 112. Limiting slide groove; 113. Placement groove; 12. Rotating screw; 13. Rotating block; 131. Protrusion; 14. Connecting round block; 15. Limiting round block; 16. Pressure plate; 161. Limiting slider; 17. Rubber pad one; 18. Rubber pad two; 19. Wire harness body; 20. Positioning rod; 21. Limiting plate; 211. Positioning groove one; 212. Positioning groove two; 22. Handle. Detailed Implementation

[0016] 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.

[0017] Example 1: Please see Figure 1-5 This is the first embodiment of the present utility model. The present utility model provides a technical solution: a batch tin plating device for both ends of a wire harness, including a tin plating furnace 1, a fixing block 5 fixedly connected to the top surface of the tin plating furnace 1, a cylinder 6 fixedly installed on the top surface of the fixing block 5, a connecting rod 7 fixedly connected to the output end of the piston rod of the cylinder 6, and a lifting block 8 fixedly connected to the bottom end of the connecting rod 7. A motor 9 is fixedly installed on one side of the lifting block 8. The motor 9 is a stepper motor. One end of the rotating rod 10 is fixedly connected to the shaft of the motor 9. The other end of the rotating rod 10 is fixedly connected to the C-shaped frame 11. A threaded hole 111 is opened on the top of the C-shaped frame 11. A rotating screw 12 is threadedly connected to the threaded hole 111. A rotating block 13 is fixedly connected to the top of the rotating screw 12. A connecting round block 14 is fixedly connected to the bottom of the rotating screw 12. A limiting round block 15 is fixedly connected to the bottom surface of the connecting round block 14. The connecting round block 14 and the limiting round block 15 are rotatably connected to the pressure plate 16. The horizontal cross-section of the limiting round block 15 is larger than that of the connecting round block 14, which can effectively limit the movement. A rubber pad 17 is fixedly provided on the bottom surface of the pressure plate 16. Multiple placement grooves 113 are opened on the bottom surface of the C-shaped frame 11. A rubber pad 18 is fixedly provided on the inner wall of the placement groove 113. The setting of rubber pad 18 and rubber pad 17 can improve the fixation of the wire harness body 19. A through-hole 52 is opened on one side of the fixing block 5, and a limiting plate 21 is slidably connected inside the through-hole 52. A handle 22 is fixedly connected to the end of the limiting plate 21. A wire harness body 19 is placed on the rubber pad 28, and one end of the wire harness body 19 abuts against the limiting plate 21. The extended limiting plate 21 can limit the placement of a batch of wire harness bodies 19, so that the batch of wire harness bodies 19 can be neatly arranged and placed so that the middle position of the wire harness body 19 is placed on the rubber pad 28 set in the placement groove 113, ensuring the tinning quality.

[0018] Example 2: Please see Figure 1-5 This is the second embodiment of the present invention. Based on the previous embodiment, a positioning rod 20 is fixedly connected to the bottom surface of the opening 52. A positioning groove 211 is formed at one end of the bottom surface of the limiting plate 21, and a positioning groove 212 is formed at the other end of the bottom surface of the limiting plate 21. The positioning groove 211 engages with the positioning rod 20. When not in use, the limiting plate 21 can be moved upwards by the handle 22 to disengage the positioning groove 211 from the positioning rod 20, and the limiting plate 21 can be moved backwards to engage the positioning groove 212 with the positioning rod 20, preventing the limiting plate 21 from extending and affecting the tin plating process.

[0019] A sliding groove 51 is provided on one side of the fixed block 5, and the lifting block 8 is slidably connected to the sliding groove 51.

[0020] Limiting blocks 81 are fixedly connected to both sides of the lifting block 8. Limiting grooves 511 are opened on both sides of the sliding through groove 51. The limiting blocks 81 are slidably connected to the limiting grooves 511, which can limit the lifting range of the lifting block 8 and improve the stability of the lifting block 8.

[0021] The pressure plate 16 is slidably connected to the C-shaped frame 11. A limiting slider 161 is fixedly connected to one side of the pressure plate 16. A limiting groove 112 is opened on one side of the C-shaped frame 11. The limiting slider 161 is slidably connected to the limiting groove 112, which can limit the pressure plate 16 to keep it vertically rising and falling, and can limit its rising and falling range.

[0022] Multiple protrusions 131 are fixed to the outer surface of the rotating block 13 to facilitate rotation. A heating tube 2 is fixedly installed inside the tin plating furnace 1. A temperature sensor 3 is installed inside the tin plating furnace 1. The signal output terminal of the temperature sensor 3 is electrically connected to the input terminal of the PLC temperature controller (not shown in the figure). The output terminal of the PLC temperature controller is electrically connected to the heating tube 2. The tin plating furnace 1 is filled with molten tin. The temperature of the molten tin is detected by the temperature sensor 3. When the temperature of the molten tin is lower than the set temperature, the temperature sensor 3 sends a signal to the PLC temperature controller. After receiving the signal, the PLC temperature controller sends a signal to the heating tube 2 to start working, thereby achieving appropriate heating of the molten tin through the heating tube 2 to compensate for the heat loss of the molten tin. When the temperature sensor 3 detects that the temperature of the molten tin has reached the set temperature, the temperature sensor 3 sends a signal to the PLC temperature controller again. After receiving the signal, the PLC temperature controller sends a signal to the heating tube 2 to stop working, thereby ensuring that the temperature of the molten tin is within the optimal working temperature range. The inner wall of the tin plating furnace 1 is equipped with a standard liquid level line 4. For most wire harnesses, a tolerance of ±0.5mm in the tin plating length is perfectly acceptable. Manual replenishment of the liquid level can ensure that the liquid level slowly fluctuates within this tolerance range. Tin consumption is a relatively slow process; the liquid level will only drop significantly after processing thousands of wire harnesses. Therefore, real-time compensation is not necessary; periodic intervention is sufficient. The operator can periodically (e.g., every two hours of work or after completing a batch of products) check the liquid level and manually replenish the tin bars (by immersing one end of a new tin bar into the molten tin using clamps, melting it with the high temperature of the molten tin) to restore the liquid level to the standard liquid level line 4.

[0023] Please see Figure 1-5In use, the molten tin in the tinning furnace 1 is at a temperature within its operating range. The batch of wire harnesses 19 to be tinned are placed on the rubber pads 18 in the placement groove 113, with one end of the wire harness 19 abutting the limiting plate 21. After placement, rotating the rotating block 13 drives the rotating screw 12, connecting block 14, and limiting block 15 to rotate. The limiting groove 112 limits the limiting slider 161 on one side of the pressure plate 16, allowing... The pressure plate 16 moves downward, causing the rubber pad 17 on the bottom surface of the pressure plate 16 to move downward and make close contact with the batch wire harness body 19, which is placed therein. The rubber pad 18 then clamps and fixes the wire harness body 19. Next, the handle 22 can be grasped to move the limiting plate 21 upward, causing the positioning groove 211 to disengage from the positioning rod 20. The limiting plate 21 is then moved backward, causing the positioning groove 212 to engage with the positioning rod 20, preventing the protruding limiting plate 21 from affecting the tin plating process. Then, the motor 9 is connected to an external power source and started. Motor 9 drives the C-shaped frame 11 and the clamped batch wire harness body 19 to rotate 90 degrees to the left. Cylinder 6 is connected to an external power source. Starting cylinder 6 moves the batch wire harness body 19 downwards, immersing one end of the body into molten solder for tin plating. After tin plating, cylinder 6 moves the C-shaped frame 11 back to its original position. Once the molten solder solidifies, motor 9 rotates the C-shaped frame 11 back to its original position. Then, motor 9 drives the C-shaped frame 11 to rotate 90 degrees to the right, which in turn allows cylinder 6 to rotate the batch wire harness body 19... 9. The wire harness body 19 is immersed in molten tin, which can be used to tin-plate the other end of the wire harness body 19. After tin-plate, the cylinder 6 drives the C-shaped frame 11 and other components to move back to their original positions. After the molten tin solidifies, the motor 9 drives the C-shaped frame 11 and other components to rotate back to their original positions. The rotating screw 12 can be used to move the pressure plate 16 and rubber pad 17 upwards, which can remove the batch of wire harness bodies 19 with tin-platen ends. Tin-platen work can be performed on both ends of the batch of wire harness bodies 19 without having to manually replace the other end of the wire harness and re-clamp it, thus improving the tin-platen efficiency.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for batch tin plating at both ends of a wire harness, comprising a tin plating furnace (1), characterized in that: The top surface of the tin plating furnace (1) is fixedly connected to a fixing block (5), the top surface of the fixing block (5) is fixedly installed with a cylinder (6), the piston rod output end of the cylinder (6) is fixedly connected to a connecting rod (7), and the bottom end of the connecting rod (7) is fixedly connected to a lifting block (8). A motor (9) is fixedly installed on one side of the lifting block (8). One end of a rotating rod (10) is fixedly connected to the shaft of the motor (9). The other end of the rotating rod (10) is fixedly connected to a C-shaped frame (11). A threaded hole (111) is opened at the top of the C-shaped frame (11). A rotating screw (12) is threadedly connected inside the threaded hole (111). A rotating block (13) is fixedly connected to the top of the rotating screw (12). A connecting round block (14) is fixedly connected to the bottom of the rotating screw (12). A limiting round block (15) is fixedly connected to the bottom surface of the connecting round block (14). The connecting round block (14) and the limiting round block (15) are rotatably connected inside the pressure plate (16). A rubber pad (17) is fixedly provided on the bottom surface of the pressure plate (16). Multiple placement grooves (113) are opened on the bottom surface of the C-shaped frame (11). A rubber pad (18) is fixedly provided on the inner wall of the placement groove (113). The fixed block (5) has an opening (52) on one side, and a limiting plate (21) is slidably connected inside the opening (52). A handle (22) is fixedly connected to the end of the limiting plate (21).

2. The device for batch tin plating at both ends of a wire harness according to claim 1, characterized in that: The positioning rod (20) is fixed to the bottom surface of the opening (52). A positioning groove (211) is opened at one end of the bottom surface of the limiting plate (21), and a positioning groove (212) is opened at the other end of the bottom surface of the limiting plate (21). The positioning groove (211) engages with the positioning rod (20).

3. The device for batch tin plating at both ends of a wire harness according to claim 1, characterized in that: A sliding groove (51) is provided on one side of the fixed block (5), and the lifting block (8) is slidably connected to the sliding groove (51).

4. The device for batch tin plating at both ends of a wire harness according to claim 3, characterized in that: The lifting block (8) is fixedly connected to the limiting blocks (81) on both sides, and the sliding through groove (51) is opened on both sides. The limiting blocks (81) are slidably connected to the limiting grooves (511).

5. The device for batch tin plating at both ends of a wire harness according to claim 1, characterized in that: The pressure plate (16) is slidably connected to the C-shaped frame (11), and a limiting slider (161) is fixedly connected to one side of the pressure plate (16). A limiting groove (112) is opened on one side of the C-shaped frame (11), and the limiting slider (161) is slidably connected to the limiting groove (112).

6. The device for batch tin plating at both ends of a wire harness according to claim 1, characterized in that: Multiple protrusions (131) are fixed to the outer surface of the rotating block (13), and a heating tube (2) is fixedly installed inside the tin plating furnace (1).

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