Special welding fixture for metal bracket

Abstract

The utility model discloses a kind of special welding fixtures of metal support, including guiding device for supporting, locking portion, the locking portion is equipped with multiple pairs, and multiple pairs of locking portion are equidistant fixedly arranged in the inner end surface of guiding device, needle tail portion is integrally formed in the upper portion of locking portion, and positioning needle head is integrally formed in the lower portion of locking portion, and positioning needle head is used to position and limit capacitor. The utility model uses double-needle structure contact plate, eliminates the free activity difference of product, fixes the position of the plate and chip of metal support, improves the stability and accuracy of subsequent welding and limiting capacitor.

Description

Technical Field

[0001] This utility model relates to the field of capacitor equipment technology, specifically a special welding fixture for a metal bracket. Background Technology

[0002] Capacitor welding fixtures are specialized auxiliary equipment designed for welding processes of electrodes, leads, and components such as casings or circuit boards in capacitor production. Their core functions are to achieve precise positioning, stable clamping, efficient heat dissipation, and welding quality control of the welded parts. They are widely used in automated or semi-automated production scenarios for various types of capacitors, such as aluminum electrolytic capacitors, film capacitors, and ceramic capacitors.

[0003] After the existing welding fixture is loaded, the operator manually presses it down and then manually tightens the screws. However, most of the existing locking structures are single-pin designs, which means that after the capacitor is positioned and limited, there is still some lateral deviation. As a result, the capacitor does not reach the welding position completely. At the same time, the distance between the metal bracket plates and the chip is relatively large. This large space between the metal bracket plates and the chip during the welding process leads to many appearance defects after the product is welded. Therefore, there is an urgent need for a special welding fixture for metal brackets to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a special welding fixture for metal supports to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a special welding fixture for a metal bracket, including a guide device for support.

[0006] The locking part has multiple pairs, and the multiple pairs of locking parts are fixedly arranged at equal intervals on the inner end face of the guide device. The upper part of the locking part is integrally formed with a needle tail, and the lower part of the locking part is integrally formed with a positioning needle. The positioning needle is used to position and limit the capacitor.

[0007] A limiting device is threadedly connected to the bottom of the guide device, and the limiting device is used to position and support the capacitor.

[0008] Preferably, the guiding device includes a guide plate, the inner end face of which is provided with pinhole slots at equal intervals, and threaded shafts are provided at both ends of the inner end face of the guide plate.

[0009] Preferably, the limiting device includes a clamping plate, the upper end face of which is provided with limiting slots at equal intervals, two sets of nuts are provided on the lower end face of the clamping plate, and two sets of limiting rotating plates are integrally formed on the side of the nuts.

[0010] Preferably, the locking part is fixedly mounted on the inner end face of the guide plate through a pinhole slot. The pinhole slot can provide sufficient assembly positioning basis for the locking part and the positioning pin, improving the convenience of subsequent assembly of the positioning pin.

[0011] Preferably, each pair of positioning pins is disposed inside a limiting slot, and both positioning pins are inside a single limiting slot. This can improve the stability of subsequent positioning pins locking and limiting the capacitor inside the limiting slot, and prevent axial deflection after a single positioning pin locks the capacitor.

[0012] Preferably, the clamping plate is threadedly connected to the lower end face of the guide plate by means of a nut and a threaded shaft. When the positioning needle is positioned outside the capacitor, the threaded connection between the nut and the threaded shaft can provide a precise and stable guide distance for the relative displacement between the clamping plate and the guide plate, thereby improving the accuracy and stability of subsequent positioning.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model uses a double-needle structure to contact the electrode plate, which eliminates the product's free movement error, fixes the position of the electrode plate and chip of the metal bracket, and improves the stability and accuracy of subsequent welding and positioning of the capacitor.

[0015] 2. This utility model, through the linear layout of this welding fixture, can meet the minimum operating space requirements of the product.

[0016] 3. This utility model solves the problems of chip skewing and electrode misalignment caused by the double-needle structure of the clamp in the welding process of metal bracket products. Attached Figure Description

[0017] Figure 1 This is an exploded view of the main body of this utility model;

[0018] Figure 2 This is a schematic diagram of the main structure of the present utility model;

[0019] Figure 3 This is a schematic diagram of the guiding device of this utility model;

[0020] Figure 4 This is a schematic diagram of the limiting device of this utility model.

[0021] In the figure: 1-locking part, 2-guide device, 3-positioning pin, 4-limiting device, 5-pin tail, 21-pin hole slot, 22-guide plate, 23-threaded shaft, 41-limiting slot, 42-clamp plate, 43-limiting rotating plate, 44-nut. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-4 One embodiment of this utility model provides a special welding fixture for a metal bracket, including a guide device 2 for support.

[0024] Locking part 1, there are multiple pairs of locking parts 1, and the multiple pairs of locking parts 1 are fixedly arranged at equal distances on the inner end face of the guide device 2. A needle tail 5 is integrally formed on the upper part of the locking part 1, and a positioning needle 3 is integrally formed on the lower part of the locking part 1. The positioning needle 3 is used to position and limit the capacitor.

[0025] The limiting device 4 is threadedly connected to the bottom of the guide device 2 and is used to position and support the capacitor.

[0026] The guide device 2 includes a guide plate 22, the inner end face of which is provided with pinhole slots 21 at equal intervals, and threaded shafts 23 are provided at both ends of the inner end face of the guide plate 22.

[0027] The limiting device 4 includes a clamping plate 42, with limiting slots 41 evenly spaced on the upper end surface of the clamping plate 42, two sets of nuts 44 located on the lower end surface of the clamping plate 42, and two sets of limiting rotating plates 43 integrally formed on the side of the nuts 44.

[0028] The locking part 1 is fixedly mounted on the inner end face of the guide plate 22 through the pinhole slot 21. The pinhole slot 21 can provide sufficient assembly positioning base for the locking part 1 and the positioning pin 3, improving the convenience of subsequent assembly of the positioning pin 3.

[0029] Each pair of positioning pins 3 is set inside the limiting slot 41. The fact that both positioning pins 3 are inside a single limiting slot 41 can improve the stability of the subsequent positioning pins 3 locking and limiting the capacitor inside the limiting slot 41, and prevent axial deflection after a single positioning pin 3 locks the capacitor.

[0030] The clamp plate 42 is threadedly connected to the lower end face of the guide plate 22 by the nut 44 and the threaded shaft 23. When the positioning needle 3 is positioned outside the capacitor, the threaded connection between the nut 44 and the threaded shaft 23 can provide a precise and stable guide distance for the relative displacement between the clamp plate 42 and the guide plate 22, thereby improving the accuracy and stability of subsequent positioning.

[0031] Working principle: Before use, the operator can position the capacitor to be welded inside the limiting slot 41. At this time, the inner wall contour of the limiting slot 41 can fit the outside of the capacitor. Then, when fixing and limiting the capacitor, the operator can rotate the limiting plate 43, so that the limiting plate 43 can drive the nut 44 to rotate. At this time, the nut 44 can be connected to the threaded shaft 23, thereby driving the two sets of threaded shafts 23 and the guide plate 22 to move down synchronously. The guide plate 22 can drive multiple sets of positioning pins 3 to be inserted and limited to the capacitor positioning point inside the limiting slot 41. The two sets of positioning pins 3 can be positioned by a straight line between two points, thereby preventing the capacitor from shifting inside the limiting slot 41.

[0032] 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 special welding fixture for a metal bracket, comprising a guide device (2) for support, characterized in that: Locking part (1), there are multiple pairs of locking parts (1), and multiple pairs of locking parts (1) are fixedly arranged at equal distances on the inner end face of the guide device (2). A needle tail (5) is integrally formed on the upper part of the locking part (1), and a positioning needle (3) is integrally formed on the lower part of the locking part (1). The positioning needle (3) is used to position and limit the capacitor. The limiting device (4) is threadedly connected to the bottom of the guide device (2) and is used to position and support the capacitor.

2. The special welding fixture for a metal bracket according to claim 1, characterized in that: The guiding device (2) includes a guide plate (22), and the inner end face of the guide plate (22) is provided with pinhole slots (21) at equal intervals, and threaded shafts (23) are provided at both ends of the inner end face of the guide plate (22).

3. The special welding fixture for a metal bracket according to claim 2, characterized in that: The limiting device (4) includes a clamping plate (42), with limiting slots (41) evenly spaced on the upper end face of the clamping plate (42), and two sets of nuts (44) provided on the lower end face of the clamping plate (42), and two sets of limiting rotating plates (43) integrally formed on the side of the nuts (44).

4. A special welding fixture for a metal bracket according to claim 3, characterized in that: The locking part (1) is fixedly installed on the inner end face of the guide plate (22) through the pinhole slot (21).

5. A special welding fixture for a metal bracket according to claim 3, characterized in that: Each pair of positioning pins (3) is located inside the limiting slot (41).

6. A special welding fixture for a metal bracket according to claim 3, characterized in that: The clamp plate (42) is threadedly connected to the lower end face of the guide plate (22) by means of a nut (44) and a threaded shaft (23).

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