Welding positioning tool for buffer capacitor

Abstract

The utility model relates to a welding positioning tool of a buffer capacitor, which comprises a soldering lug bottom plate, an element bottom plate, an element limiting block, a spring baffle plate, a soldering lug pressing plate and a pull rod, one end of the element bottom plate is connected with one end of the soldering lug bottom plate, the height of the element bottom plate is higher than that of the soldering lug bottom plate, and the other end of the soldering lug bottom plate is provided with the spring baffle plate. The other end of the element bottom plate is provided with an element limiting block, the soldering lug bottom plate is provided with a first soldering lug clamping groove, the element bottom plate is provided with a second soldering lug clamping groove, the soldering lug pressing plate is arranged on the soldering lug bottom plate in a sliding mode, the pull rod is connected with the soldering lug pressing plate and penetrates through the spring baffle, and the spring is arranged between the soldering lug pressing plate and the spring baffle. A heightening block is arranged on the surface of the element bottom plate and located at one end of the element bottom plate. The positioning device is simple in structure, convenient to use, accurate in positioning and high in production and manufacturing efficiency. The soldering lug is positioned through the height difference between the soldering lug bottom plate and the element bottom plate and the soldering lug clamping groove, and the capacitor element is positioned through the element limiting block and the heightening block.

Description

A welding positioning fixture for a buffer capacitor Technical Field

[0001] This utility model belongs to the field of capacitor welding technology, and in particular relates to a welding positioning fixture for a buffer capacitor. Background Technology

[0002] When traditionally welding buffer capacitors by hand, there are no positioning fixtures, and positioning can only be done by human eye. After welding, the two weld pieces cannot be on the same plane, resulting in a very high rate of rework and scrap.

[0003] Traditional manual soldering of buffer capacitors cannot guarantee the correct height of the solder pads relative to the capacitor element, leading to two problems after the product is housed: a. The solder pads are too high, making it difficult to position them on the plastic casing, resulting in excessive gaps between the solder pads and the casing, affecting customer use and installation. b. The solder pads are too low, causing the component to be too tall after the product is housed, even exceeding the top edge of the plastic casing. During the potting process, the filler material cannot cover the component, affecting the product's appearance and electrical performance, and increasing the process scrap rate. Summary of the Invention

[0004] The utility model provides a welding positioning fixture for a buffer capacitor, which solves the technical problems that the two welding pieces cannot be on the same plane and the height of the welding pieces relative to the capacitor element cannot be guaranteed during traditional manual welding.

[0005] The technical solution of this utility model is as follows: A welding positioning fixture for a buffer capacitor includes: a solder base plate, a component base plate, a component limiting block, a spring baffle, a solder pressure plate, and a pull rod. One end of the component base plate is connected to one end of the solder base plate, and the height of the component base plate is higher than that of the solder base plate. The spring baffle is provided at the other end of the solder base plate, and the component limiting block is provided at the other end of the component base plate. A first solder slot is provided on the solder base plate, and a second solder slot is provided on the component base plate. The solder pressure plate is slidably disposed on the solder base plate. The pull rod is connected to the solder pressure plate and passes through the spring baffle. A spring is provided between the solder pressure plate and the spring baffle. A shim is provided on the surface of the component base plate, and the shim is located at one end of the component base plate.

[0006] Furthermore, both the welding sheet pressure plate and the spring baffle are provided with spring limiting holes, and both ends of the spring are placed in the spring limiting holes.

[0007] Furthermore, a bolt mounting groove is provided along the length direction on the base plate of the component, and a through threaded hole is provided vertically inside the component limiting block. A bolt is threadedly connected to the threaded hole, and the bottom of the bolt is threadedly connected to the bolt mounting groove.

[0008] Furthermore, a cover plate is installed on the base plate of the welding sheet, and the welding sheet pressure plate is disposed between the cover plate and the base plate of the welding sheet.

[0009] Furthermore, it also includes a pulling device connected to the pull rod for pulling the pull rod.

[0010] Furthermore, the pulling device includes a cylinder and a connecting bracket, the piston rod of the cylinder is connected to the connecting bracket, and the tail of the pull rod is embedded in the connecting bracket.

[0011] The beneficial effects of this utility model are as follows: This utility model positions the solder pads by using the height difference between the solder pad base plate and the component base plate, as well as the solder pad slots. The component limiting block and the shim block position the capacitor component. During the welding process, the base plates of the two solder pads are placed in the solder pad slots respectively, and the capacitor component is clamped between the welding strips of the two solder pads. The bottom shim block positions the height of the component, the welding strips of the two solder pads position the left and right sides of the component, and the component limiting block positions the front and back sides.

[0012] This invention uses a shim block to control the gap between the component and the back plate of the solder pad, ensuring the gap between the component and the plastic shell during the injection process, allowing the filler to fully wrap the component and improving the product's service life.

[0013] This utility model uses a welding sheet pressure plate to fix the welding sheet, preventing the welding sheet from moving during welding. At the same time, it relies on a pull rod and spring to facilitate convenient and quick loading and unloading.

[0014] This utility model has a simple structure, is easy to use, has precise positioning, and high manufacturing efficiency. Attached Figure Description

[0015] Figure 1 is a structural schematic diagram of this utility model.

[0016] Figure 2 is a cross-sectional schematic diagram of this utility model.

[0017] Figure 3 is a schematic diagram of the capacitor element in this utility model. Detailed Implementation

[0018] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. The described embodiments are merely some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0019] In the technical solution of this utility model, Figures 1 and 2 are schematic diagrams of the specific structure of a welding positioning fixture for a buffer capacitor according to this utility model. As shown in Figures 1 and 2, this utility model includes:

[0020] The component includes a solder pad base plate 1, a component base plate 2, a component limiting block 3, a spring baffle 4, a solder pad pressure plate 5, and a pull rod 6. One end of the component base plate 2 is connected to one end of the solder pad base plate 1, and the height of the component base plate 2 is higher than that of the solder pad base plate 1. The component base plate 2 and the solder pad base plate 1 form a solder pad positioning step. The solder pad base plate 1 has a first solder pad slot 11, and the component base plate 2 has a second solder pad slot 21. The first solder pad slot 11 and the second solder pad slot 21 cooperate with the solder pad positioning step to form a step shape similar to the back plate of the solder pad. As shown in Figure 3, the back plate of the solder pad is step-shaped, which is adapted to the step-shaped solder pad slots, thereby positioning the solder pad.

[0021] The solder pads are positioned using a positioning step, and the capacitor element is positioned using a component limiting block 3. During implementation, the positioning of the solder pads and the element is achieved by moving and locking the component limiting block 3 back and forth, thereby achieving the positioning of the height of the solder pads relative to the element.

[0022] The spring baffle 4 is provided at the other end of the solder sheet base plate 1, the component limiting block 3 is provided at the other end of the component base plate 2, and the solder sheet pressure plate 5 is slidably disposed on the solder sheet base plate 1 and located above the solder sheet slot of the solder sheet base plate 1 to press the solder sheet.

[0023] The pull rod 6 is connected to the solder pad pressure plate 5 and passes through the spring baffle 4. A spring is provided between the solder pad pressure plate 5 and the spring baffle 4. A shim 7 is provided on the surface of the component base plate 2, and the shim 7 is located close to the solder pad base plate 1. The shim 7 can control the gap between the capacitor component and the solder pad back plate, ensuring the gap between the capacitor component and the plastic shell during the filling process, so that the filler material can fully wrap the component and improve the service life of the product.

[0024] Among them, the solder pad base plate 1, component base plate 2 and solder pad pressure plate 5 are made of flexible nylon material to avoid damage to the solder pad coating caused by friction and squeezing during the positioning and fixing of the solder pad.

[0025] In one embodiment of this utility model, both the welding sheet pressure plate 5 and the spring baffle 4 are provided with spring limiting holes, and both ends of the spring are placed in the spring limiting holes. The spring is placed in the countersunk hole inside the welding sheet pressure plate 5, and the other end is limited by the spring baffle 4. The pull rod 6 is connected to the welding sheet pressure plate 5 through the threaded hole 31.

[0026] In one embodiment of this utility model, a bolt mounting groove 22 is provided on the component base plate 2 along the length direction, and a through threaded hole 31 is provided vertically in the component limiting block 3. A bolt is threadedly connected to the threaded hole 31, and the bottom of the bolt is threadedly connected to the bolt mounting groove 22.

[0027] In one embodiment of the present invention, a cover plate 8 is installed on the welding sheet base plate 1, and the welding sheet pressure plate 5 is disposed between the cover plate 8 and the welding sheet base plate 1.

[0028] In one embodiment of this utility model, a pulling device is further included. The pulling device is connected to the pull rod 6 and is used to pull the pull rod 6. The pulling device includes a cylinder 91 and a connecting bracket 92. The piston rod of the cylinder 91 is connected to the connecting bracket 92, and the tail of the pull rod 6 is embedded in the connecting bracket 92. By driving the connecting bracket 92 through the cylinder 91, the pull rod 6 is pulled, thereby completing the loading and unloading of the welding sheet.

[0029] The method of using this utility model is as follows: First, adjust the position of the component limiting block 3 according to the size of the capacitor component. Then, by pulling the pull rod 6, the welding sheet pressure plate 5 is driven, and the spring is squeezed and deformed, and the welding sheet is placed in the welding sheet slot. Release the pull rod 6, the spring rebounds, and the welding sheet pressure plate 5 squeezes the welding sheet against the component base plate 2, placing the capacitor component between the pad block 7 and the component limiting block 3, thus completing the positioning of the capacitor component. After the positioning is completed, welding is performed.

[0030] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A welding positioning fixture for a buffer capacitor, characterized in that, include: The component base plate (1), component base plate (2), component limiting block (3), spring baffle (4), solder pad pressure plate (5), and pull rod (6) are provided. One end of the component base plate (2) is connected to one end of the solder pad base plate (1), and the height of the component base plate (2) is higher than the height of the solder pad base plate (1). The spring baffle (4) is provided at the other end of the solder pad base plate (1), and the component limiting block (3) is provided at the other end of the component base plate (2). The solder pad base plate (1) has an opening on it. A first solder pad slot (11) is provided, and a second solder pad slot (21) is provided on the component base plate (2). The solder pad pressure plate (5) is slidably disposed on the solder pad base plate (1). The pull rod (6) is connected to the solder pad pressure plate (5) and passes through the spring baffle (4). A spring is provided between the solder pad pressure plate (5) and the spring baffle (4). A shim block (7) is provided on the surface of the component base plate (2). The shim block (7) is located at one end of the component base plate (2).

2. The soldered positioning tool for a buffer capacitor according to claim 1, wherein Both the welding sheet pressure plate (5) and the spring baffle (4) are provided with spring limiting holes, and the two ends of the spring are placed in the spring limiting holes.

3. The soldered positioning tool for a buffer capacitor according to claim 1, wherein The component base plate (2) has a bolt mounting groove (22) along its length. The component limiting block (3) has a through threaded hole (31) vertically arranged inside. The threaded hole (31) is threaded with a bolt, and the bottom of the bolt is threaded inside the bolt mounting groove (22).

4. The welding positioning fixture for the buffer capacitor as described in claim 1, characterized in that, A cover plate (8) is installed on the base plate (1) of the welding sheet, and the welding sheet pressure plate (5) is disposed between the cover plate (8) and the base plate (1).

5. The soldered positioning fixture for a buffer capacitor as claimed in claim 1, wherein It also includes a pulling device, which is connected to the pull rod (6) and is used to pull the pull rod (6).

6. The welding positioning fixture for the buffer capacitor as described in claim 5, characterized in that, The pulling device includes a cylinder (91) and a connecting bracket (92). The piston rod of the cylinder (91) is connected to the connecting bracket (92), and the tail of the pull rod (6) is embedded in the connecting bracket (92).

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