Horn spot welding wire feeding tool

Abstract

A horn spot welding wire feeding tool comprises a restraining pipe, an inner plate is welded to the restraining pipe, a plurality of guide rods are arranged on the inner plate in a penetrating mode, end caps are arranged at the upper ends of the guide rods, the guide rods are sleeved with springs, the other ends of the guide rods are connected with a movable plate through threads, a plurality of limiting rods are arranged on the movable plate in a penetrating mode, and the limiting rods are provided with movable plates. A plurality of connecting arms are mounted on the movable plate, grooves are formed in the connecting arms, inner pressing rods are rotatably arranged on the connecting arms, limiting nuts are connected to the inner pressing rods, clamping plates sleeve the inner pressing rods, the clamping plates are arranged in the grooves in a penetrating mode, inclined holes are formed in the clamping plates, and the inner pressing rods are arranged in the inclined holes in a penetrating mode; the lower end of the limiting rod is connected with a connecting block through threads, an end sleeve is arranged at the inner side end of the connecting block, a plurality of movable holes are formed in the periphery of the end sleeve, and the clamping plates are arranged in the movable holes in a penetrating mode. When connecting wire welding or welding spot welding is carried out, an operator can hold the welding wire feeding device conveniently, and tin welding wires can be fed conveniently.

Description

Technical Field

[0001] This utility model relates to the field of horn processing technology, and in particular to a horn spot welding wire feeding fixture. Background Technology

[0002] When soldering the coil and connecting wires of a loudspeaker, soldering is used. To facilitate soldering the copper wires, a spot solder is often applied to the solder joint first. When the copper wire is laid on top, the solder ball can be melted directly without touching the copper wire to complete the soldering, thus preventing the copper wire from burning out due to high temperatures during soldering. Currently, during the soldering process, the operator holds the solder wire in one hand and uses the soldering gun to perform the soldering operation with the other hand. To avoid burns from the heating end of the soldering gun, the hand holding the solder wire is kept a considerable distance from the soldering point. However, as the distance increases, it can affect the accuracy of the soldering point, and a longer protruding section of the solder wire is also prone to bending downwards, affecting the soldering operation. Utility Model Content

[0003] This utility model provides a horn-shaped spot welding wire feeding fixture to overcome the shortcomings of the prior art and solve the problems of easy deformation and inconvenience in holding the solder wire during welding, thus having strong practicality.

[0004] In order to achieve the purpose of this utility model, the following technology is proposed to be adopted:

[0005] A horn-shaped spot welding wire feeding fixture includes a constraint tube with an inner plate welded to its inner end. Multiple guide rods pass through the inner plate, each with an end cap at its upper end and a spring fitted onto it. A movable plate is threaded to the other end of each guide rod, and multiple limiting rods pass through the movable plate. Limiting caps are located at the upper ends of the limiting rods, positioned above the movable plate. A movable plate is fitted to the lower ends of the limiting rods, with an external support spring fitted onto each limiting rod between the movable plate and the movable plate. Multiple connecting arms are installed on the upper part. The lower end of the connecting arm has a groove. An inner pressure rod is rotatably installed at the lower end of the connecting arm. The two ends of the inner pressure rod are connected to limit nuts by threads. A clamping plate is sleeved on the inner pressure rod. The outer end of the clamping plate passes through the groove. An oblique hole is opened on the clamping plate. The upper end of the oblique hole extends inward at an incline. The inner pressure rod passes through the oblique hole. The lower end of the limit rod is connected to a connecting block by threads. An end sleeve is provided on the inner side of the connecting block. Multiple movable holes are opened on the outer periphery of the end sleeve. The clamping plate passes through the movable holes. The inner pressure rod acts on the oblique hole, causing the clamping plate to move inward and hold the solder wire. The outer support spring ensures the clamping effect. When the solder wire is fed, the moving plate and the movable plate first move closer together. During this movement, the clamping plate moves outward, releasing the solder wire from its grip. Then, both the moving plate and the movable plate move inward simultaneously. After this movement, the operator releases the pressure on the moving plate and the movable plate, allowing the clamping plate to hold the solder wire. The moving plate then moves under the spring's action, thus feeding the solder wire. Furthermore, during soldering, the operator can hold the constraint tube, preventing the solder wire from extending too far and bending or deforming.

[0006] Furthermore, at least one concave handle is welded to the outer periphery of the constraint tube to facilitate the movement of the moving plate.

[0007] Furthermore, the inner plate is provided with protrusions to facilitate movement of the inner plate.

[0008] Furthermore, the movable plate is provided with a gripping plate to facilitate its movement.

[0009] Furthermore, the inner end of the clamp has a concave arc structure to improve the clamping effect and avoid forming clamping marks on the solder wire.

[0010] Furthermore, one of the connecting blocks has a raised plate formed on it to facilitate the movement of the movable plate.

[0011] Furthermore, the lower outer periphery of the end sleeve has a tapered structure, and the lower end of the end sleeve is a small end, so as to facilitate observation during welding.

[0012] Furthermore, a concave guide is installed on the connecting block, and the connecting arm passes through the concave guide to guide the movement of the end sleeve and the connecting arm.

[0013] The advantages of the above technical solution are:

[0014] This invention provides a convenient grip for operators during wire welding or solder joint welding, and also facilitates the feeding of solder wire. Attached Figure Description

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will provide a further detailed description of this utility model in conjunction with the accompanying drawings.

[0016] Figure 1 A three-dimensional structural diagram of one embodiment is shown.

[0017] Figure 2 A magnified view of point A is shown.

[0018] Figure 3 A partial three-dimensional structural diagram of the lower end of one embodiment is shown. Detailed Implementation

[0019] like Figures 1-3 As shown, a horn spot welding wire feeding fixture includes a constraint tube 44, and at least one concave handle 45 is welded on the outer periphery of the constraint tube 44.

[0020] An inner plate 42 is welded to the inner end of the constraint tube 44. A protrusion 43 is provided on the inner plate 42. Multiple guide rods 40 are passed through the inner plate 42. An end cap is provided at the upper end of the guide rod 40. A spring 41 is sleeved on the guide rod 40. A movable plate 38 is connected to the other end of the guide rod 40 by thread. A holding plate 39 is provided on the movable plate 38. Multiple limiting rods 35 are threaded through the movable plate 38. Limiting caps are located at the upper ends of the limiting rods 35, above the movable plate 38. A movable plate 20 is fitted onto the lower ends of the limiting rods 35. An external support spring 36 is fitted onto the limiting rods 35, located between the movable plate 38 and the movable plate 20. Multiple connecting arms 33 are mounted on the movable plate 20. A groove is formed at the lower end of each connecting arm 33. An internal pressure rod 31 is rotatably mounted at the lower end of each connecting arm 33. Limiting nuts are threaded to both ends of the internal pressure rod 31. A clamping plate 3 is fitted onto the internal pressure rod 31. The inner end of the clamping plate 3 has a concave arc-shaped structure. An oblique hole 30 is formed on the clamping plate 3, with its upper end extending inward at an inward angle. The internal pressure rod 31 passes through the oblique hole 30. A connecting block 200 is threaded to the lower end of the limiting rods 35. One of the connecting blocks 200 has a pressure protrusion 37 formed on it. A concave guide 34 is installed on the connecting block 200, and the connecting arm 33 passes through the concave guide 34. An end sleeve 2 is provided on the inner end of the connecting block 200. The lower end of the end sleeve 2 has a tapered outer circumference and the lower end of the end sleeve 2 is the small end. Multiple movable holes are opened on the outer circumference of the end sleeve 2, and the clamping plate 3 passes through the movable holes.

[0021] In this embodiment, during welding, the solder wire is sequentially passed through the constraint tube 44, inner plate 42, moving plate 38, movable plate 20 and end sleeve 2. The inner plate 42, moving plate 38 and movable plate 20 are all provided with through holes, and the solder wire extends a certain distance out of the end sleeve 2. Then the operator performs the welding operation by holding the constraint tube 44.

[0022] When feeding the solder wire, the moving plate 38 is first brought closer to the movable plate 20. During this process, the outer support spring 36 is compressed, and the connecting arm 33 and its inner pressure rod 31 move during the movement. The inner pressure rod 31 acts on the oblique hole 30, thereby moving the inner end of the clamping plate 3 away from the solder wire. Then, the moving plate 38 and the end sleeve 2 are moved closer to each other while the outer support spring 36 is compressed, so that the length of the solder wire extending out of the end sleeve 2 is extended. During the movement, the spring 41 is compressed until the end sleeve 2 is a certain distance away. Then, the operator first loosens the movable plate 20 so that the movable plate 20 moves towards the end sleeve 2 under the action of the outer support spring 36. During the movement, the inner pressure rod 31 acts on the oblique hole 30, thereby clamping the solder wire through the clamping plate 3. Afterwards, loosen the grip on the movable plate 38 so that the movable plate 38, the end sleeve 2, and the solder wire limited by the clamping plate 3 can move forward under the action of the spring 41, and then perform the soldering operation again.

[0023] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations of this utility model fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A horn spot welding wire feed tooling characterized by, The utility model provides a kind of restraint tube (44), the inner side end of restraint tube (44) is welded with inner plate (42), and multiple guide rods (40) are arranged on inner plate (42), and the upper end of guide rod (40) is equipped with end cap, spring (41) is sleeved on guide rod (40), and the other end of guide rod (40) is connected with moving plate (38) by screw thread, and multiple limit rods (35) are arranged on moving plate (38), and the upper end of limit rod (35) is equipped with limit cap, and limit cap is located above moving plate (38), and the lower end of limit rod (35) is sleeved with movable plate (20), and outer support spring (36) is sleeved on limit rod (35), and outer support spring (36) is located between moving plate (38) and movable plate (20), and multiple connecting arms (33) are installed on movable plate (20), recess is set in the lower end of connecting arm (33), and inner pressure rod (31) is rotatably arranged in the lower end of connecting arm (33), and limit nut is connected to the both ends of inner pressure rod (31) by screw thread, and clamping plate (3) is sleeved on inner pressure rod (31), and oblique hole (30) is formed in clamping plate (3), and the upper end of oblique hole (30) extends inwardly and obliquely, and inner pressure rod (31) is arranged in oblique hole (30), and connecting block (200) is connected to the lower end of limit rod (35) by screw thread, and end sleeve (2) is arranged in the inner side end of connecting block (200), and multiple movable holes are formed in the outer periphery of end sleeve (2), and clamping plate (3) is arranged in movable hole.

2. The horn spot welding wire feed fixture of claim 1, wherein, At least one concave handle (45) is welded on the outer periphery of restraint tube (44).

3. The horn spot welding wire feed fixture of claim 1, wherein, Convex part (43) is arranged on inner plate (42).

4. The horn spot welding wire feed fixture of claim 1, wherein, Gripping plate (39) is arranged on moving plate (38).

5. The horn spot welding wire feed fixture of claim 1, wherein, The inner side end of clamping plate (3) is concave arc structure.

6. The horn spot welding wire feed fixture of claim 1, wherein, Pressing convex plate (37) is formed on one of connecting block (200).

7. The horn spot welding wire feed fixture of claim 1, wherein, The lower end of end sleeve (2) is tapered structure, and the lower end of end sleeve (2) is small end.

8. The horn spot welding wire feed fixture of claim 1, wherein, Concave guide (34) is installed on connecting block (200), and connecting arm (33) is arranged in concave guide (34).

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