Positioning and clamping type harness welding tool

Abstract

The utility model discloses a positioning and clamping type wiring harness welding tool relates to wiring harness welding technical field, including base and install two movable plates, two fixed plates on the base, the opposite surface between movable plate, fixed plate all are fixedly arranged with clamping plate, the recess is seted up with two on the base, the inside fixed setting of recess has the guide column, the outside of guide column is equipped with the connecting spring, be provided with two groups of abutting mechanism on the base, the utility model discloses the abutting mechanism through the recess strip drive extrusion board extrusion connecting spring along the guide column, compensate its elasticity fatigue or elasticity attenuation after long -term use, need not frequently replace connecting spring, reduce maintenance cost, avoid production interruption, ensure that connecting spring always keeps enough elastic potential energy, make clamping plate exert constant clamping force to the conductor, prevent the conductor displacement when welding, reduce the false welding, the welding, guarantee welding precision and quality consistency.

Description

Technical Field

[0001] This utility model belongs to the field of wire harness welding technology, specifically a positioning and clamping wire harness welding fixture. Background Technology

[0002] There are many wiring harnesses in automobiles. As a core connecting component, the welding quality of the wiring harness directly determines the reliability, safety and service life of the end product. The wiring harness welding process requires precise connection and melting of the wires in the wiring harness. It is necessary to ensure stable conductivity and avoid problems such as poor soldering, desoldering and damage to the wire core. During welding, the two sets of wiring harnesses are fixed between two clamping plates on both sides of the base. Then, the wires on the two sets of wiring harnesses are welded together by a welding gun.

[0003] Generally, wire harness welding uses a tooling structure with a base and clamping plates on both sides to fix the wires: During operation, you need to hold the moving rod to push the movable plate, which will cause the clamping plate on the surface of the movable plate to move and open. At this time, the connecting spring between the movable plate and the base is compressed. After the wire is put in, release the moving rod, the connecting spring will return to its original position and push the movable plate and clamping plate to move, thus completing the clamping and positioning of the wire. Then, the welding gun is used to weld the two sets of wires. In existing technologies, connecting springs are prone to elastic fatigue during long-term, repeated compression and reset at high frequencies, leading to a decline in elastic performance or even failure. This not only causes insufficient wire clamping force, resulting in wire displacement during welding and affecting welding accuracy and quality stability, but also requires frequent replacement of failed connecting springs, which increases the maintenance cost of the tooling and interrupts the production process due to replacement operations, reducing overall production efficiency. To address this issue, we propose a positioning clamping wire harness welding tooling. Utility Model Content

[0004] The purpose of this utility model is to provide a positioning and clamping wire harness welding fixture to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a positioning and clamping wire harness welding fixture, comprising a base and two movable plates and two fixed plates mounted on the base. Clamping plates are fixedly disposed on the opposing surfaces of the movable and fixed plates. Two grooves are formed on the base, and guide posts are fixedly disposed inside the grooves. Connecting springs are sleeved on the outside of the guide posts. Two sets of clamping mechanisms are provided on the base, each clamping mechanism including: A pressing plate that slides on the guide post is used to press the connecting spring against it; The base has two concave strips that slide inside, and multiple limiting grooves are provided inside the base. Limiting plates are fixedly provided on both sides of the concave strips, and the limiting plates can slide inside the limiting grooves to guide and limit the concave strips.

[0006] Preferably, two mounting blocks are fixedly provided on the back of the base, and a T-shaped screw is threadedly connected inside the concave strip to fix the concave strip.

[0007] Preferably, an iron ring is fixedly fitted around the outside of the T-shaped screw, and an arc-shaped magnet is magnetically attracted to the outer wall of the iron ring to limit the movement of the T-shaped screw.

[0008] Preferably, two T-shaped blocks are fixedly disposed on the top of the base, and T-shaped strips are slidably disposed inside the T-shaped blocks.

[0009] Preferably, the fixed plate is fixed inside one end of the groove, and the movable plate is slidably disposed inside the groove.

[0010] Preferably, the base also has two sliding rods slidably disposed inside.

[0011] Preferably, a fixing block is fixedly disposed inside the groove, one end of the guide post is fixed to the inner wall of the groove, and the other end is fixedly connected to the fixing block.

[0012] Preferably, one end of the connecting spring is fixedly connected to the extrusion plate, and the other end is fixedly connected to the movable plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are: (1) This utility model uses a designed clamping mechanism to drive the extrusion plate along the guide post to squeeze the connecting spring through the concave strip, which compensates for the elastic fatigue or elastic weakening after long-term use. It eliminates the need to frequently replace the connecting spring, reduces maintenance costs, avoids production interruption, and ensures that the connecting spring always maintains sufficient elastic potential energy, so that the clamping plate applies a constant clamping force to the wire, preventing the wire from shifting during welding, reducing false welding and desoldering, and ensuring the consistency of welding accuracy and quality. Adjustment can be completed by pushing the concave strip and rotating the T-shaped screw. No complicated tools are required. It can flexibly adapt to different attenuation levels of the connecting spring, is compatible with multi-diameter wire clamping, and enhances the versatility of the tooling.

[0014] (2) This utility model combines a T-shaped block, an arc magnet, an iron ring and a T-shaped strip. The iron ring is fixedly sleeved on the outside of the T-shaped screw, and the arc magnet is attached to the iron ring by magnetic attraction, which can restrict the rotation of the T-shaped screw. Together with the T-shaped screw fixing the concave strip, a double locking of "threaded fixing and magnetic attraction limiting" is formed to prevent the T-shaped screw from loosening due to welding vibration or accidental contact, and to ensure the stable clamping state of the clamping mechanism against the connecting spring. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the rear view structure of this utility model; Figure 3 This is a cross-sectional view of the base structure of this utility model; Figure 4 This is a schematic diagram of the concave strip and mounting block structure of this utility model; Figure 5 This is a schematic diagram of the iron ring and arc-shaped magnet structure of this utility model; In the diagram: 100, base; 101, guide post; 102, groove; 103, connecting spring; 104, movable plate; 105, fixed plate; 106, moving rod; 107, fixed block; 200, concave strip; 201, extrusion plate; 202, mounting block; 203, T-shaped screw; 204, limiting plate; 205, limiting groove; 300, T-shaped block; 301, arc magnet; 302, iron ring; 303, T-shaped strip. Detailed Implementation

[0016] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] Example 1 Please see Figures 1-4 This utility model provides a technical solution: it includes a base 100 and two movable plates 104 and two fixed plates 105 mounted on the base 100. Clamping plates are fixedly installed on the opposing surfaces between the movable plates 104 and the fixed plates 105. The clamping plates position and clamp the wires of the wire harness, facilitating welding operations. Two grooves 102 are formed on the base 100. Guide posts 101 are fixedly installed inside the grooves 102. Connecting springs 103 are sleeved on the outside of the guide posts 101, providing basic elastic force for the movable plates 104 to reset and clamp. Two sets of clamping mechanisms are provided on the base 100, each clamping mechanism including: The pressing plate 201, which is slidably disposed on the guide post 101, is used to press against the connecting spring 103; The base 100 has two concave strips 200 that slide inside. The base 100 has multiple limiting grooves 205 inside. Limiting plates 204 are fixedly installed on both sides of the concave strips 200. The limiting plates 204 can slide inside the limiting grooves 205 to guide and limit the concave strips 200. When the connecting spring 103 experiences elastic fatigue or reduced elasticity after prolonged use, the concave strips 200 are moved closer to the connecting spring 103, which drives the pressing plate 201 to move and press the connecting spring 103, compensating for the elasticity attenuation and restoring the elasticity of the connecting spring 103.

[0018] Example 2 Please refer to Example 1. Figures 1-4 Two mounting blocks 202 are fixedly installed on the back of the base 100. A T-shaped screw 203 is threadedly connected inside the concave strip 200 to fix the concave strip 200. The T-shaped screw 203 can fix the concave strip 200 when it is moved to a suitable position. Then, the connecting spring 103 is squeezed by the extrusion plate 201 to limit the position and prevent the connecting spring 103 from resetting. The T-screw 203 is externally fitted with an iron ring 302. During use, a small amount of dust may adhere to the exposed outer surface of the T-screw 203. The dust can be cleaned periodically with a brush. The outer wall of the iron ring 302 is magnetically attached to an arc-shaped magnet 301 for limiting the T-screw 203. After the T-screw 203 limits and fixes the concave strip 200, the arc-shaped magnet 301 on the T-screw 303 comes into contact with the iron ring 302 located outside the T-screw 203 and magnetically attracts it. This limits the T-screw 203 and prevents it from rotating due to accidental contact or vibration during welding, which would affect the limiting and fixing of the concave strip 200.

[0019] Example 3 Please refer to Example 2. Figures 1-5 Two T-shaped blocks 300 are fixedly installed on the top of the base 100. T-shaped strips 303 are slidably installed inside the T-shaped blocks 300, and the ends of the T-shaped strips 303 are fixedly connected to the arc magnets 301. The fixed plate 105 is fixed inside one end of the groove 102, and the movable plate 104 is slidably disposed inside the groove 102 and also slides on the guide post 101.

[0020] In this embodiment, two movable rods 106 are slidably arranged inside the base 100. By pushing the movable rods 106, the movable plate 104 can be slid along the guide post 101, so that the clamping plate can be opened to insert the wire. The operator can directly drive the movable plate 104 to slide along the guide post 101 by holding the movable rods 106 and applying pushing or pulling force, so as to realize the opening and closing of the clamping plate. The end of the movable rod 106 passes through the interior of the fixed plate 105 and is fixedly connected to the movable plate 104.

[0021] In this embodiment, a fixing block 107 is fixedly disposed inside the groove 102, and one end of the guide post 101 is fixed on the inner wall of the groove 102, while the other end is fixedly connected to the fixing block 107.

[0022] In this embodiment, one end of the connecting spring 103 is fixedly connected to the compression plate 201, and the other end is fixedly connected to the movable plate 104.

[0023] Working principle and usage process of this utility model: When this utility model is in use, in the initial state, the connecting spring 103 is in a naturally extended state, pushing the movable plate 104 closer to the fixed plate 105, so that the clamping plates on both are in a closed state. The operator holds the moving rod 106 and pulls it away from the fixed plate 105. The moving rod 106 drives the movable plate 104 to slide along the guide post 101 and the groove 102. The movable plate 104 squeezes the connecting spring 103 to compress and deform it, and the clamping plate opens accordingly. Place the wires of the two sets of wire harnesses between the movable plate 104 and the fixed plate 105 on both sides of the base 100, release the moving rod 106, the connecting spring 103 resets and pushes the movable plate 104 back, and the clamping plate closes to clamp and position the wires. If the elasticity of the connecting spring 103 decreases after long-term use, the concave strip 200 is pushed to slide along the inside of the base 100. The limiting plates 204 on both sides of the concave strip 200 are guided to move along the limiting groove 205. The concave strip 200 drives the pressing plate 201 to slide along the guide post 101 and press the connecting spring 103 to compensate for the elasticity decrease. When the concave strip 200 moves to the appropriate position, the T-shaped screw 203 is rotated downward to fix the concave strip 200 in the current position. Then, the T-shaped strip 303 is pushed to slide along the T-shaped block 300, which drives the arc magnet 301 to be magnetically attracted and fixed to the iron ring 302 on the T-shaped screw 203, thus restricting the rotation of the T-shaped screw 203. After the wire positioning and clamping are completed, the welding gun is used to weld the wire welding nodes of the two sets of wire harnesses. During the welding process, all components remain stable to ensure welding accuracy. Then, the moving rod 106 is pulled again to open the clamping plate and the welded wire harness is taken out.

[0024] The above embodiments are only used to illustrate the technical methods of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of this utility model without departing from the spirit and scope of the technical methods of this utility model.

Claims

1. A positioning clamping type wire harness welding fixture, comprising a base (100) and two movable plates (104) and two fixed plates (105) mounted on the base (100), wherein clamping plates are fixedly provided on the opposing surfaces between the movable plates (104) and the fixed plates (105), two grooves (102) are provided on the base (100), a guide post (101) is fixedly provided inside the groove (102), a connecting spring (103) is sleeved on the outside of the guide post (101), and two sets of abutment mechanisms are provided on the base (100), characterized in that, The blocking agencies include: A pressing plate (201) is slidably disposed on the guide post (101) to press against the connecting spring (103); The base (100) has two concave strips (200) slidably disposed inside, and the base (100) has multiple limiting grooves (205) inside. Both sides of the concave strips (200) are fixedly provided with limiting plates (204), and the limiting plates (204) can slide inside the limiting grooves (205) to guide and limit the concave strips (200).

2. The positioning and clamping wire harness welding fixture according to claim 1, characterized in that, Two mounting blocks (202) are fixedly installed on the back of the base (100), and a T-shaped screw (203) is threadedly connected inside the concave strip (200) to fix the concave strip (200).

3. The positioning and clamping wire harness welding fixture according to claim 2, characterized in that, An iron ring (302) is fixedly fitted on the outside of the T-shaped screw (203). An arc-shaped magnet (301) is magnetically attracted to the outer wall of the iron ring (302) to limit the T-shaped screw (203).

4. The positioning and clamping wire harness welding fixture according to claim 1, characterized in that, Two T-shaped blocks (300) are fixedly installed on the top of the base (100), and a T-shaped strip (303) is slidably installed inside the T-shaped block (300).

5. The positioning and clamping wire harness welding fixture according to claim 1, characterized in that, The fixed plate (105) is fixed inside one end of the groove (102), and the movable plate (104) is slidably disposed inside the groove (102).

6. The positioning and clamping wire harness welding fixture according to claim 1, characterized in that, Two movable rods (106) are also slidably disposed inside the base (100).

7. The positioning and clamping wire harness welding fixture according to claim 1, characterized in that, A fixing block (107) is fixedly installed inside the groove (102). One end of the guide post (101) is fixed on the inner wall of the groove (102), and the other end is fixedly connected to the fixing block (107).

8. The positioning and clamping wire harness welding fixture according to claim 1, characterized in that, One end of the connecting spring (103) is fixedly connected to the extrusion plate (201), and the other end is fixedly connected to the movable plate (104).

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