CN212665144U - Carbon brush welding tool - Google Patents
Carbon brush welding tool Download PDFInfo
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- CN212665144U CN212665144U CN202022162706.1U CN202022162706U CN212665144U CN 212665144 U CN212665144 U CN 212665144U CN 202022162706 U CN202022162706 U CN 202022162706U CN 212665144 U CN212665144 U CN 212665144U
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Abstract
The utility model discloses a carbon brush welding frock belongs to the welding technology field. The carbon brush comprises a substrate, a carbon brush rod groove, an exhaust hole and a carbon block groove. Wherein, the connecting part of the carbon brush rod groove and the carbon block groove is provided with an exhaust hole. The welding method based on the carbon brush welding tool comprises the following steps: firstly, placing a carbon block and a carbon brush rod in a carbon block groove and a carbon brush welding groove respectively; secondly, setting the size of the steel mesh openings according to the arrangement mode of the exhaust holes; thirdly, setting the paste amount of the printing soldering paste according to the size of the opening of the steel mesh and the depth of the groove; fourthly, setting a furnace temperature curve; and fifthly, placing the carbon brush welding tool in reflow soldering for processing. The utility model has the advantages that: high production efficiency and high qualification rate.
Description
Technical Field
The utility model relates to the welding technology field, in particular to carbon brush welding frock.
Background
The carbon brush is mainly applied to the antenna slip ring. Although the carbon brush product is in large demand, the current assembly process is still manual welding. The assembling process method mainly comprises the step of welding silver-plated carbon blocks (silver graphite blocks) to the connecting bracket. The phenomenon that a silver coating layer on the surface of the carbon block falls off due to overlong welding time can occur in the assembling process (the carbon block is scrapped after falling off); therefore, the difficulty is high in the welding process, the qualified rate is extremely low, and the efficiency is extremely low. And in order to meet the requirements of scientific research and production, the assembly personnel often need to carry out the welding work of the carbon brush products by overtime and dotting.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a carbon brush welding frock. The tool and the welding method are used, so that the carbon brush product is more convenient to weld, and the qualified rate is higher.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a carbon brush welding tool comprises a high-temperature-resistant substrate; a carbon brush groove is formed in the substrate; the carbon brush grooves comprise a carbon brush rod groove and a carbon block groove which are connected together; an exhaust hole is also arranged at the connecting position of the carbon brush rod groove and the carbon block groove; the carbon brush groove is located on the upper surface of the substrate, and the exhaust hole penetrates through the bottom surface of the substrate.
Further, the substrate has a temperature resistance of more than 300 ℃.
Further, the groove depth of the carbon brush rod groove is the same as that of the carbon block groove.
The utility model adopts the beneficial effect that above-mentioned technical scheme produced lies in:
1. the utility model discloses a production efficiency is high, can print many carbon brushes at every turn to can weld in succession in batches in the reflow soldering stove.
2. The utility model discloses use steel mesh printing reflow soldering technology, abandon manual welding, the qualification rate is higher.
Drawings
Fig. 1 is a schematic structural view of a carbon brush welding tool of the present invention;
fig. 2 is a schematic structural view of a carbon brush according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of the array structure of FIG. 1.
In the figure: 1. the carbon brush comprises a substrate, 2, a carbon brush rod groove, 3, an exhaust hole, 4 and a carbon block groove.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
A carbon brush welding tool comprises a high-temperature-resistant substrate; a carbon brush groove is formed in the substrate; the carbon brush grooves comprise a carbon brush rod groove and a carbon block groove which are connected together; an exhaust hole is also arranged at the connecting position of the carbon brush rod groove and the carbon block groove; the carbon brush groove is located on the upper surface of the substrate, and the exhaust hole penetrates through the bottom surface of the substrate.
Further, the substrate has a temperature resistance of more than 300 ℃.
Further, the groove depth of the carbon brush rod groove is the same as that of the carbon block groove.
A carbon brush welding method adopts the carbon brush welding tool to weld the carbon brush, and comprises the following steps:
firstly, placing a carbon block and a carbon brush rod in a carbon block groove and a carbon brush rod groove respectively;
step two, arranging the size of the opening of the steel mesh according to the arrangement of the exhaust holes, and placing the steel mesh above the connecting position of the carbon block and the carbon brush rod;
step three, printing soldering paste according to the size of the opening of the steel mesh and the depth of the groove; after the paste to be welded leaks, taking down the steel mesh;
step four, placing the finished tool in a reflow soldering furnace for soldering;
and step five, taking out the welded carbon brush from the tool.
Further, in the third step, the holes of the steel mesh are rectangular through holes.
The following is a more specific example:
referring to fig. 1 to 3, a carbon brush welding tool includes a substrate, a carbon brush rod groove, an exhaust hole, and a carbon block groove. Wherein, the connecting part of the carbon brush rod groove and the carbon block groove is provided with an exhaust hole.
The substrate may be a large substrate, and the left side and the right side of the substrate are respectively provided with four carbon brush rod grooves, four exhaust holes, and four carbon brush rod grooves, four carbon block grooves, and four exhaust holes on each side, which are arranged in parallel in the vertical direction, as shown in fig. 3.
Further, the substrate material must be able to withstand repeated impacts at high temperatures of 300 ℃ without deforming.
Furthermore, the depths of the carbon brush rod groove and the carbon block groove are kept consistent.
Furthermore, the exhaust holes are densely arranged in three rows.
According to the carbon brush welding tool, a welding method based on the carbon brush welding tool is provided, and the welding method comprises the following steps:
firstly, placing a carbon block and a carbon brush rod in a carbon block groove and a carbon brush rod groove respectively;
step two, arranging the size of the opening of the steel mesh according to the arrangement of the exhaust holes, and placing the steel mesh above the carbon block and the carbon brush rod;
step three, printing soldering paste according to the size of the opening of the steel mesh and the depth of the groove; after the paste to be welded leaks, taking down the steel mesh;
step four, placing the finished carbon brush welding tool in a reflow furnace for welding;
and step five, taking out the processed carbon brush from the tool.
Further, in the first step, the placement distance between the carbon block and the carbon brush rod is ensured to be 0.8mm to 1.5 mm.
Further, in the third step, the volume of the solder paste provided in each hole of the steel mesh is equal to the steel mesh opening width × the steel mesh opening length × (steel mesh thickness + groove depth).
Furthermore, in the fourth step, a qualified furnace temperature curve is set according to the type of the soldering paste and the heat absorption capacity of the tooling material, so that the requirements of the welding process are met.
Compared with the prior art, the utility model relates to a carbon brush welding frock and welding method's advantage lies in:
1. the production efficiency is high. According to the carbon brush welding tool and the welding method thereof, batch continuous welding can be performed in a reflow furnace.
2. The qualification rate is high. The utility model provides a pair of carbon brush welding frock and welding method uses steel mesh printing reflow soldering technology, abandons manual welding.
Referring to fig. 1, it includes a substrate 1, a carbon brush bar groove 2, an exhaust hole 3, and a carbon block groove 4. Wherein, the connecting part of the carbon brush rod groove 2 and the carbon block groove 4 is provided with an exhaust hole 3.
Referring to fig. 3, four carbon brush bar grooves 2, exhaust holes 3, and carbon block grooves 4 are respectively formed on the left and right sides of a substrate 1, and the four carbon brush bar grooves 2, the four carbon block grooves 3, and the exhaust holes 4 are vertically arranged in parallel.
The substrate material must be able to withstand repeated impact at high temperatures of 300 ℃ without deformation, and therefore synthetic stone is selected. The depths of the carbon brush rod groove and the carbon block groove are kept consistent and are 2 mm. The exhaust holes are densely arranged in three rows.
Utilize the utility model provides a pair of carbon brush welding frock provides a carbon brush welding method. Referring to fig. 2, carbon brush welding is performed using the welding method. The method comprises the following steps:
firstly, a carbon block and a carbon brush rod are respectively placed in the carbon block groove and the carbon brush welding groove. The placement distance of the carbon blocks and the carbon brush rods is ensured to be between 0.8mm and 1.5 mm.
And then the size of the steel mesh openings is set according to the arrangement mode of the exhaust holes. The steel mesh is 10mm long and 1.5mm wide. The thickness of the steel mesh is 0.15 mm.
The paste amount of the printing solder paste is required to be set according to the size of the opening of the steel mesh and the depth of the groove. The volume of the solder paste set in each hole of the steel mesh is 2.15mm, which is the steel mesh opening width x the steel mesh opening length x (steel mesh thickness + groove depth).
Setting a furnace temperature curve before placing the reflow furnace; and setting a qualified furnace temperature curve according to the type of the soldering paste and the heat absorption capacity of the tooling material, so as to meet the requirements of the welding process. And finally, taking out the tool subjected to welding in reflow soldering, and detaching the carbon brush to finish welding.
The above description is only an embodiment of the present invention, but the present invention is not limited to the embodiment. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit and principle of the invention, and the equivalents or substitutions are included in the scope defined by the claims of the present application.
Claims (3)
1. A carbon brush welding tool is characterized by comprising a high-temperature-resistant substrate; a carbon brush groove is formed in the substrate; the carbon brush grooves comprise a carbon brush rod groove and a carbon block groove which are connected together; an exhaust hole is also arranged at the connecting position of the carbon brush rod groove and the carbon block groove; the carbon brush groove is located on the upper surface of the substrate, and the exhaust hole penetrates through the bottom surface of the substrate.
2. The carbon brush welding tool according to claim 1, wherein the substrate is resistant to a temperature greater than 300 ℃.
3. The carbon brush welding tool according to claim 1, wherein the groove depth of the carbon brush rod groove is the same as that of the carbon block groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022162706.1U CN212665144U (en) | 2020-09-28 | 2020-09-28 | Carbon brush welding tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022162706.1U CN212665144U (en) | 2020-09-28 | 2020-09-28 | Carbon brush welding tool |
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| Publication Number | Publication Date |
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| CN212665144U true CN212665144U (en) | 2021-03-09 |
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| CN202022162706.1U Active CN212665144U (en) | 2020-09-28 | 2020-09-28 | Carbon brush welding tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112045274A (en) * | 2020-09-28 | 2020-12-08 | 中国电子科技集团公司第五十四研究所 | Carbon brush welding tool and carbon brush welding method |
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2020
- 2020-09-28 CN CN202022162706.1U patent/CN212665144U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112045274A (en) * | 2020-09-28 | 2020-12-08 | 中国电子科技集团公司第五十四研究所 | Carbon brush welding tool and carbon brush welding method |
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