CN110560829A - Novel welding tool - Google Patents
Novel welding tool Download PDFInfo
- Publication number
- CN110560829A CN110560829A CN201910868181.2A CN201910868181A CN110560829A CN 110560829 A CN110560829 A CN 110560829A CN 201910868181 A CN201910868181 A CN 201910868181A CN 110560829 A CN110560829 A CN 110560829A
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- Prior art keywords
- pressing plate
- spring pressing
- welding
- spring
- tool
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
- B23K3/087—Soldering or brazing jigs, fixtures or clamping means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
Abstract
The invention discloses a novel welding tool which comprises an upper spring pressing plate assembly, an upper pressing plate, a bottom plate, a side spring pressing plate assembly, a connecting screw rod and a nut. The main advantages of the invention are: the problems that the flatness, the verticality and the overall dimension precision of a traditional welding and clamping tool cannot meet the requirements of products when the traditional welding and clamping tool is used for welding a case are solved, meanwhile, the clamping force required during welding is provided through a spring assembly, the strength of a welding seam at a splicing part is ensured, and the requirement of the case on the sealing performance is met; the spring pressing plate is provided with the step hole which is matched with the outer diameter of the spring, the stability of fixing the spring can be guaranteed, and the bottom plate and the upper pressing plate of the tool adopt an integral structure, so that the clamping precision of the tool is guaranteed, and the consistency of the welding quality of products is improved. The invention effectively reduces the deformation of the liquid cooling case during welding, ensures the welding sealing performance and improves the qualification rate of products.
Description
Technical Field
The invention belongs to the technology of a case welding tool in the field of vacuum brazing, and particularly relates to a liquid cooling case welding tool.
Background
The liquid-cooled chassis is an important heat dissipation component in a liquid-cooled heat dissipation system, and is generally formed by splicing at least four plates, and at least three plates forming the chassis wall plate contain fluid channels. According to the development requirements of the current equipment on light weight and high reliability, the splicing and forming of the liquid cooling case mainly adopts vacuum welding, and the liquid cooling case formed by the method has high reliability and attractive appearance, and is the mainstream forming mode of the liquid cooling case of the current electronic equipment.
According to the function and performance requirements of a liquid cooling cabinet, the cabinet formed by vacuum brazing requires that the sealing performance of each welding joint is good, leakage cannot occur under the specified sealing performance test pressure (the test pressure is usually 1.5MPa), and the form and position tolerance between the wall plates forming the cabinet is controlled within a certain range (the flatness of the wall plates is usually required to be not more than 0.3mm, and the verticality is required to be not more than 0.5 mm). When the liquid cooling case is welded and formed, a clamping tool is required to be used for fixing, and the tool is mostly made of high-temperature-resistant stainless steel or alloy materials; in order to ensure the strength and the sealing property of a welding seam at the splicing position of the liquid cooling case and the overall shape and structure shape of the liquid cooling case, a fixed clamping force is required to be applied to the welding seam, and the case is greatly deformed and cannot meet the use requirement due to the fact that vacuum brazing works in a high-temperature vacuum environment and different materials have different thermal expansion coefficients; if the clamping force is reduced, the deformation can be properly reduced, but the welding seam strength at the splicing part is reduced, the sealing performance at the joint is reduced, even leakage occurs, and the product yield is seriously influenced.
Disclosure of Invention
The purpose of the invention is: in order to solve the problems of leakage, deformation, low yield and the like during welding of the liquid cooling case, a novel liquid cooling case welding tool is designed.
In order to realize the purpose, the invention adopts the following technical scheme: a novel welding tool comprises an upper spring pressing plate assembly, an upper pressing plate, a bottom plate, a side spring pressing plate assembly, a connecting screw rod and a nut; the upper spring pressing plate assembly comprises a temperature-resistant spring, a connecting short screw rod, a fastening nut and an upper spring pressing plate, and the temperature-resistant spring is fixedly connected with the upper spring pressing plate through the connecting short screw rod and the fastening nut; the upper spring pressing plate assembly is positioned above the upper pressing plate, the upper pressing plate is positioned above the upper surface of the workpiece, a plurality of through holes are formed in the surfaces of the upper spring pressing plate and the upper pressing plate, the connecting screw rod penetrates through the through holes, the upper spring pressing plate assembly is fixedly connected with the connecting screw rod through a nut, and the connecting screw rod is vertically and fixedly connected with the bottom plate; the side spring pressing plate assembly comprises a temperature-resistant spring, a connecting short screw rod, a fastening nut and a side spring pressing plate, and the temperature-resistant spring is fixedly connected with the side spring pressing plate through the connecting short screw rod and the fastening nut; the side spring pressing plate assembly is located on the side face of the workpiece, a plurality of through holes are formed in the surface of the side spring pressing plate, the connecting screw penetrates through the through holes and is parallel to the bottom plate, and the side spring pressing plate assembly is fixedly connected with the connecting screw through nuts.
Furthermore, the temperature-resistant springs are placed in step holes of the upper spring pressing plate and the side spring pressing plate mounting holes.
Further, the tool further comprises graphite plates respectively arranged between the bottom plate and the workpiece and between the upper pressing plate and the workpiece.
Further, the tool further comprises a supporting block arranged on the side face of the workpiece, and the side spring pressing plate assembly is located at the same height position.
Furthermore, the temperature resistant springs are uniformly distributed on the upper spring pressing plate and the side spring pressing plates.
Furthermore, the connecting screw rod is arranged at the welding and splicing part.
The invention has the beneficial effects that: the invention reduces the problem that the flatness, verticality and overall dimension precision of the traditional welding and clamping tool do not meet the requirements of products when the traditional welding and clamping tool is used for welding a case, and simultaneously provides the clamping force required during welding through the spring assembly, thereby ensuring the weld joint strength at the splicing part and meeting the requirements of the case on the sealing performance. Meanwhile, the spring pressing plate is provided with a step hole which is matched with the outer diameter of the spring, the stability of fixing the spring can be guaranteed, and the bottom plate and the upper pressing plate of the tool adopt an integral structure, so that the clamping precision of the tool can be guaranteed, and the consistency of the welding quality of a product can be improved. The welding tool is very important for the vacuum brazing of the liquid cooling case, the deformation of the liquid cooling case during welding is effectively reduced, the welding sealing performance is ensured, and the product percent of pass is improved.
Drawings
Fig. 1 is a schematic structural view of a welding tool.
Fig. 2 is a schematic structural view of an upper spring platen assembly.
FIG. 3 is a schematic diagram of a side spring platen assembly.
Fig. 4 is a schematic view of a spring mounting structure.
The device comprises a base plate 1, a graphite plate 2, a side spring pressing plate 3, a nut 4, an upper pressing plate 5, an upper spring pressing plate 6, a connecting screw 7, a connecting short stud 10, a temperature-resistant spring 11, a stepped hole 12 and a fastening nut 13.
Detailed Description
The present invention will be explained in detail by the following examples, which are disclosed for the purpose of protecting all technical improvements within the scope of the present invention.
The welding tool comprises a bottom plate 1, a graphite plate 2, a connecting screw rod 7, a nut 4, an upper pressure plate 5, a temperature-resistant spring 11, an upper spring pressure plate assembly, a connecting short screw rod 10, a side spring pressure plate assembly and the like, and the tool and a workpiece are assembled in a welding process as shown in figure 1. The material selected for each part should be able to withstand the highest temperature during vacuum brazing, wherein the elastic properties of the temperature resistant spring 11 should not be affected by the vacuum brazing temperature. A plurality of temperature-resistant springs 11 are fixed with an upper spring pressing plate 6 through connecting short screw rods 10 and nuts 13, the springs are uniformly distributed on the upper spring pressing plate 6 as far as possible to form an upper spring pressing plate assembly, as shown in fig. 2, and then the upper spring pressing plate assembly is connected and fixed with a bottom plate 1 through connecting screw rods 7 and nuts 4, and the springs have certain compression amount; and similarly, side spring pressing plate assemblies are formed, are arranged on the left side and the right side of the workpiece as shown in figure 3, and are fixedly connected through a connecting screw rod 7 and a nut 4. In the welding process, the spring can be stretched by the force generated by the expansion caused by heat and contraction caused by cold of the material, on one hand, the spring can be compressed to have a certain displacement, and the deformation of a workpiece due to expansion force is avoided; on the other hand, the spring can also generate certain elasticity to compress the welding seam splicing part of the workpiece, so that the welding seam strength of the splicing part can be ensured. Compared with the traditional vacuum brazing tool for welding the liquid cooling case at home and abroad, the tool adopts a plurality of temperature-resistant springs 11, can buffer the material displacement and deformation caused by expansion with heat and contraction with cold in the welding process, and can provide proper tightening force through the expansion and contraction of the springs.
Parts in the welding tool are made of stainless steel or alloy materials with high temperature resistance exceeding the vacuum brazing temperature, graphite plates 2 need to be placed between the bottom plate 1 and the workpiece and between the upper pressing plate 5 and the workpiece respectively, and adhesion between the tool and the workpiece in the welding process is prevented. When the spring pressing plate assembly is assembled, the high-temperature-resistant springs are placed in the stepped holes 12 of the spring pressing plate mounting holes so as to ensure the stability of the springs, and meanwhile, the consistency of the heights of the assembled springs is ensured through the fastening nuts 13, as shown in fig. 4. When the bottom plate 1, the upper pressure plate 5 and the upper spring pressure plate assembly are connected, the number of the connecting screw rods is reasonably arranged according to the positions and the number of welding heads needed by workpieces, and the connecting screw rods are arranged at the positions corresponding to welding joints, so that clamping force can be more fully distributed at the welding joints. The nuts 4 which are matched with the connecting screw rods and used for fastening the upper spring pressing plate assembly are required to apply certain screwing torque, so that the spring has certain compression pretightening force, and after the nuts are screwed, the consistency of the distances between the upper spring pressing plate assembly and the upper pressing plate 5 is required to be ensured. The side spring pressing plate assemblies are assembled on the left side and the right side of the workpiece and are connected and fastened through the connecting screw rods and the nuts 4, supporting blocks with reasonable height can be arranged on the lower sides of the side spring pressing plate assemblies to prevent the side spring pressing plate assemblies from sliding downwards due to dead weight, and the side spring pressing plate assemblies are guaranteed to be located at the same height position.
Besides the above-mentioned frock, in order to guarantee the welding quality of liquid cooling machine case, still need to arrange some corresponding support frock in the upper and lower, left and right sides direction in the work piece inside, can guarantee the welding quality of work piece better.
The present invention is not described in detail in the prior art.
Claims (6)
1. The utility model provides a novel welding frock, its characterized in that: comprises an upper spring pressing plate component, an upper pressing plate (5), a bottom plate (1), a side spring pressing plate component, a connecting screw rod (7) and a nut (4); the upper spring pressing plate assembly comprises a temperature-resistant spring (11), a connecting short screw (10), a fastening nut (13) and an upper spring pressing plate (6), and the temperature-resistant spring (11) is fixedly connected with the upper spring pressing plate (6) through the connecting short screw (10) and the fastening nut (13); the upper spring pressing plate assembly is positioned above the upper pressing plate (5), the upper pressing plate (5) is positioned above the upper surface of a workpiece, a plurality of through holes are formed in the surfaces of the upper spring pressing plate (6) and the upper pressing plate (5), the connecting screw rod (7) penetrates through the through holes, the upper spring pressing plate assembly is fixedly connected with the connecting screw rod (7) through the nut (4), and the connecting screw rod (7) is vertically and fixedly connected with the bottom plate (1); the side spring pressing plate assembly comprises a temperature-resistant spring (11), a connecting short screw (10), a fastening nut (13) and a side spring pressing plate (3), and the temperature-resistant spring (11) is fixedly connected with the side spring pressing plate (3) through the connecting short screw (10) and the fastening nut (13); the side spring pressing plate assembly is located on the side face of a workpiece, a plurality of through holes are formed in the surface of the side spring pressing plate (3), the connecting screw rod (7) penetrates through the through holes and is parallel to the bottom plate (1), and the side spring pressing plate assembly is fixedly connected with the connecting screw rod (7) through the nut (4).
2. The tooling of claim 1, wherein: the temperature-resistant springs (11) are placed in the stepped holes (12) of the mounting holes of the upper spring pressing plate (6) and the side spring pressing plates (3).
3. The tooling of claim 1, wherein: the tool further comprises graphite plates (2) which are respectively arranged between the bottom plate (1) and the workpiece and between the upper pressing plate (5) and the workpiece.
4. The tooling of claim 1, wherein: the tool further comprises a supporting block arranged on the side face of the workpiece, and the side spring pressing plate assembly is located at the same height position.
5. The tooling of claim 1, wherein: the temperature-resistant springs (11) are uniformly distributed on the upper spring pressing plate (6) and the side spring pressing plates (3).
6. The tooling of claim 1, wherein: the connecting screw rod (7) is arranged at the welding and splicing part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910868181.2A CN110560829A (en) | 2019-09-12 | 2019-09-12 | Novel welding tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910868181.2A CN110560829A (en) | 2019-09-12 | 2019-09-12 | Novel welding tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110560829A true CN110560829A (en) | 2019-12-13 |
Family
ID=68779898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910868181.2A Pending CN110560829A (en) | 2019-09-12 | 2019-09-12 | Novel welding tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110560829A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111328250A (en) * | 2020-03-26 | 2020-06-23 | 安徽祥博传热科技有限公司 | High-efficiency section bar liquid cooling radiator and processing method thereof |
| CN111958079A (en) * | 2020-07-30 | 2020-11-20 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Welding method of curved surface microstrip antenna |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108637421A (en) * | 2018-05-21 | 2018-10-12 | 中国石油大学(华东) | A kind of plate-fin heat exchanger brazing jig |
| CN208614112U (en) * | 2018-07-14 | 2019-03-19 | 惠州市登峰力合科技有限公司 | A kind of welding fixture with safeguard function |
| CN209334892U (en) * | 2019-01-04 | 2019-09-03 | 洛阳磊佳电子科技有限公司 | A kind of Liquid cooling chasis furnace brazing platform tooling |
-
2019
- 2019-09-12 CN CN201910868181.2A patent/CN110560829A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108637421A (en) * | 2018-05-21 | 2018-10-12 | 中国石油大学(华东) | A kind of plate-fin heat exchanger brazing jig |
| CN208614112U (en) * | 2018-07-14 | 2019-03-19 | 惠州市登峰力合科技有限公司 | A kind of welding fixture with safeguard function |
| CN209334892U (en) * | 2019-01-04 | 2019-09-03 | 洛阳磊佳电子科技有限公司 | A kind of Liquid cooling chasis furnace brazing platform tooling |
Non-Patent Citations (1)
| Title |
|---|
| 陈学永等: "铝合金液冷机箱真空钎焊工艺及变形控制研究", 《航空精密制造技术》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111328250A (en) * | 2020-03-26 | 2020-06-23 | 安徽祥博传热科技有限公司 | High-efficiency section bar liquid cooling radiator and processing method thereof |
| CN111958079A (en) * | 2020-07-30 | 2020-11-20 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Welding method of curved surface microstrip antenna |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191213 |
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| RJ01 | Rejection of invention patent application after publication |