Plug-in type resistor pin welding tool clamp

Abstract

The utility model discloses a plug-in type resistor pin welding tool clamp, and belongs to the technical field of resistors. Comprising a base, base positioning columns, base resistor positioning cavities, base pin positioning grooves, a cover plate, cover plate positioning holes and cover plate pin positioning grooves. The base comprises a base body, a base positioning column, a base resistor positioning part and a base pin positioning groove; the base positioning columns are distributed on the upper surface of the base body; the shape of the base resistor positioning cavity is consistent with that of the resistor body; the base pin positioning groove is located at one end, where the pins are welded, of the base resistor positioning cavity and communicated with the base resistor positioning cavity, and the shape of the base pin positioning groove is consistent with that of the resistor pins. The cover plate comprises cover plate positioning holes and cover plate pin positioning grooves; the cover plate positioning holes are matched with the base positioning columns, and the cover plate pin positioning grooves are matched with the base pin positioning grooves. The problems that in the prior art, quality is not controlled, production efficiency is low, quality consistency is poor, and reliability is poor are solved. The method is suitable for the plug-in component pin welding technology.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the resistor technical field, further relates to the plug -in resistor technical field, specifically, a plug -in resistor pin welding frock clamp. BACKGROUND

[0002] The plug -in power resistor is a traditional resistor type, and the volume of the plug -in power resistor is larger than that of the chip resistor, has good heat dissipation performance, can bear large current, is mainly used for power load, power supply system and radio frequency power amplifier system, and is widely applied to the fields of communication equipment, computers, automobile industry and medical equipment.

[0003] The plug -in resistor is composed of a resistor body and a pin, and the pin and the resistor body are connected by welding to ensure product reliability.

[0004] The pin welding is a special process of the plug -in resistor, and in the welding process, quality defects such as inconsistent pin spacing, skew and misplacement often occur.

[0005] Therefore, the utility model is provided. SUMMARY

[0006] The utility model solves the problems of uncontrollable quality defects of the pin welding of the existing plug -in resistor, low welding production efficiency, poor quality consistency and difficult guarantee of reliability.

[0007] Therefore, the utility model provides a plug -in resistor pin welding frock clamp, as shown in Figures 1-3 The utility model discloses a plug -in resistor pin welding frock clamp, as shown in

[0008] The base 1 includes a base body, base positioning posts 101, a base resistor positioning cavity 102, and a base pin positioning groove 103. There are at least two base positioning posts 101 distributed on the upper surface of the base body; there is at least one base resistor positioning cavity 102, which is consistent in shape with the resistor body 301 and slightly larger in lateral dimension than the resistor body 301. Its longitudinal dimension is the sum of the longitudinal dimension of the resistor body 301 and the longitudinal dimension of the soldered end of the resistor pin 302. The base pin positioning groove 103 is located at one end of the soldered pin of the base resistor positioning cavity 102 and extends through the base resistor positioning cavity 102. The base pin positioning groove 103 is consistent in shape with the resistor pin 302 and slightly larger in size than the resistor pin 302.

[0009] The cover plate 2 includes a cover plate positioning hole 201 and a cover plate pin positioning groove 202. The cover plate positioning hole 201 matches the base positioning column 101, and the cover plate pin positioning groove 202 matches the base pin positioning groove 103.

[0010] This plug-in resistor pin soldering fixture securely solders the resistor body to the pins. Its advantages include a simple structure and easy operation. It effectively addresses issues such as inconsistent pin spacing and skewed pin soldering, significantly improving pin soldering yield, efficiency, and reliability.

[0011] The fixture has a simple structure, is easy to operate, has strong compatibility, and is high in efficiency, and is suitable for soldering pins of plug-in components. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the fixture for welding the plug-in resistor pins.

[0013] Figure 2 Schematic diagram of the welding fixture base structure.

[0014] Figure 3 Schematic diagram of the welding fixture cover structure.

[0015] In the figure: 1 is the base, 101 is the base positioning column, 102 is the base resistor positioning cavity, 103 is the base pin positioning groove, 2 is the cover, 201 is the cover positioning hole, 202 is the cover pin positioning groove, 3 is the plug-in resistor, 301 is the resistor body, and 302 is the resistor pin. DETAILED DESCRIPTION

[0016] like Figure 1 As shown, the specific implementation of the plug-in resistor pin welding fixture is as follows:

[0017] The clamp material may be stainless steel, aluminum alloy, titanium alloy, graphite, etc., but is not limited to the above materials.

[0018] The resistance body 301 is square, and the resistance pin 302 is h-shaped.

[0019] The base 1 comprises two protruding cylindrical positioning columns 101, five square base resistance positioning cavities 102, and ten base pin positioning slots 103. The protruding cylindrical positioning columns 101 are used for base and cover plate assembly alignment, to ensure that the cover plate and the base can be accurately overlapped. The square base resistance positioning cavities 102 are used for fixing the resistance to be welded, and can be designed according to the resistance body size to ensure that the resistance does not move during welding. The base pin positioning slots 103 are used for placing the pins, and are designed according to the pin shape size to ensure the consistency of pin positioning during assembly.

[0020] The cover plate 2 is used for fixing the resistance body 301 and the resistance pin 302. When the positioning hole 201 of the cover plate is inserted and fastened after being aligned with the positioning column 101 of the base, it can play a role in clamping the resistance body, avoiding movement of the resistance during welding. The pin positioning slot 202 is used for placing the pin. When the cover plate 2 and the base 1 are aligned and combined, the positioning hole 201 of the cover plate and the positioning column 101 of the base are completely aligned, ensuring the consistency of pin positioning during assembly.

[0021] The welding fixture fixes the resistance body between the base and the cover plate, ensuring that the resistance does not move during the entire welding process. The positioning mechanism of the base pin positioning slot 103 and the pin positioning slot 202 is added at the pin position, reducing the operation time and cost of manual positioning and ensuring the stability and consistency during welding, thereby improving the welding quality.

[0022] The operation mechanism of the fixture is as follows:

[0023] (1) Place the resistance body to be welded 3 in the base resistance positioning cavity 102 of the base 1.

[0024] (2) Align the positioning hole 201 of the cover plate with the positioning column 101 of the base, and precisely combine the base 1 and the cover plate 2 to realize the fixation and positioning of the resistance body to be welded.

[0025] (3) Place the resistance pin in the base pin positioning slot 103 of the base 1 and the pin positioning slot 202 of the cover plate 2, and use the base pin positioning slot 103 and the pin positioning slot 202 to ensure the width spacing of the lead-out end and realize the fixation and positioning of the pin.

[0026] (4) Apply solder at the pin position.

[0027] (5) Place the product coated with solder and the fixture together in the welding furnace, and complete the welding.

[0028] (6) after the welding is completed, the welding fixture is taken out when the temperature is reduced to the standard required temperature, the base 1 and the cover plate 2 are separated, and the plug-in resistor 3 which has been welded is taken out.

[0029] Further, the number of resistance pins of the plug-in resistor 3 can be more than 3, and the number of the base resistance positioning cavities 102 is matched with the base pin positioning groove 103 and the cover plate pin positioning groove 202.

[0030] The cover plate positioning hole 201 can be a through hole or a blind hole, and the cover plate and the base can be tightly matched.

[0031] The cover plate resistance positioning cavity can also be made on the cover plate, and the base resistance positioning cavity 102 is used for positioning and fixing the resistance body 301.

[0032] The above-mentioned is only the preferred embodiment of the present application, and does not limit the patent range of the present application, and any simple modification, equivalent change and modification of the above-mentioned according to the technical essence of the present application should fall within the protection range of the technical scheme of the present application.

Claims

1. An insert resistor pin soldering tooling clamp characterized in that: it comprises a base, base positioning columns, base resistor positioning cavities, base pin positioning slots, a cover plate, cover plate positioning holes, cover plate pin positioning slots; the base comprises a base body, base positioning columns, base resistor positioning cavities, and base pin positioning slots; the base positioning columns are two or more and are distributed on the upper surface of the base body; the base resistor positioning cavities are one or more, the shape of the base resistor positioning cavities is consistent with the resistor body, the transverse dimension of the base resistor positioning cavities is slightly larger than the resistor body, and the longitudinal dimension is the sum of the longitudinal dimension of the resistor body and the longitudinal dimension of the resistor pin soldering end; the base pin positioning slots are located at one end of the resistor pin soldering end of the base resistor positioning cavities, and are through the base resistor positioning cavities; the shape of the base pin positioning slots is consistent with the resistor pin, and the size is slightly larger than the size of the resistor pin; the cover plate comprises cover plate positioning holes and cover plate pin positioning slots; the cover plate positioning holes are matched with the base positioning columns, and the cover plate pin positioning slots are matched with the base pin positioning slots.

2. An insert resistor pin soldering fixture as defined in claim 1, wherein: The base positioning columns are protruding cylindrical positioning columns, and the number of the positioning columns is two.

3. An insert resistor pin soldering fixture as defined in claim 1 wherein: The shape of the base resistor positioning cavities is square, and the number of the base resistor positioning cavities is five.

4. An insert resistor pin soldering fixture as defined in claim 1 wherein: The number of the base pin positioning slots is ten.

5. An insert resistor pin soldering fixture as defined in claim 1 wherein: The positioning columns are protruding cylinders.

6. An insert resistor pin soldering fixture as defined in claim 1 wherein: The number of the base pin positioning slots and the cover plate pin positioning slots matched with a single base resistor positioning cavity is three or more, and the base pin positioning slots and the cover plate pin positioning slots are matched and formed with the base resistor positioning cavities.

7. An insert resistor pin soldering fixture as defined in claim 1 wherein: The cover plate positioning holes are through holes or blind holes, and the matching size of the through holes or blind holes is that the cover plate is in close contact with the base.

8. An insert resistor pin soldering fixture as defined in claim 1 wherein: The cover plate has cover plate resistor positioning cavities, which form resistor body positioning cavities together with the base resistor positioning cavities.

9. An insert resistor pin soldering fixture as defined in claim 1 wherein: The material of the clamp is stainless steel, aluminum alloy, titanium alloy, or graphite.

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