CN216607767U - Gas shielded welding clamp for sheet metal case - Google Patents
Gas shielded welding clamp for sheet metal case Download PDFInfo
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- CN216607767U CN216607767U CN202122604252.3U CN202122604252U CN216607767U CN 216607767 U CN216607767 U CN 216607767U CN 202122604252 U CN202122604252 U CN 202122604252U CN 216607767 U CN216607767 U CN 216607767U
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- positioning
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Abstract
The utility model discloses a gas shielded welding clamp for a sheet metal chassis, which comprises a clamp upper cover assembly and a clamp platform assembly; the clamp upper cover assembly comprises a clamp upper cover, a first positioning block, a gas nozzle, a protective gas passage and a gas switch, wherein the first positioning block is arranged in the clamp upper cover corresponding to each surface, and inclined planes are arranged on four sides of the clamp upper cover and on the first positioning block; the four corners of the upper cover component of the clamp are provided with gas nozzles, and the upper cover component of the clamp is provided with a protective gas passage and a gas switch; the fixture platform assembly is provided with a cylinder mounting seat, a cylinder and a second positioning module, and the cylinder mounting seat is connected with the cylinder; the utility model realizes accurate positioning and quick clamping during welding of the sheet metal case, improves the workpiece clamping efficiency, avoids oxidation and rusting of the welding seam inside the case, and can be safely and widely applied to the field of welding of the sheet metal case.
Description
Technical Field
The utility model relates to the technical field of metal plate cabinets, in particular to a gas shielded welding clamp for a metal plate cabinet.
Background
The sheet metal chassis is a chassis which is formed by a comprehensive processing technology aiming at a metal sheet (generally within 6 mm). A typical rack-mounted 19-inch chassis configuration is shown in fig. 1. The machining process of the sheet metal case comprises the processes of shearing, punching, laser cutting, bending, welding, riveting, forming and the like. The remarkable characteristic is that the thickness of the same part is consistent. The sheet-metal chassis has the characteristics of light weight, high strength, electric conduction (good electromagnetic shielding performance), low cost, good large-scale mass production performance and the like. The method is widely applied to the fields of electronic appliances, communication and the like.
In order to ensure the structural strength of the case, the four corners of the case are welded by arc welding and then polished and flattened. The welding fixture adopts a universal combined welding fixture.
Before welding, the sheet metal case is made of thin materials, so that the size of the sheet metal case is greatly influenced by the bending angle. Therefore, reliable fixtures must be adopted to realize the positioning and clamping of the appearance and the inner cavity during welding. The adoption of a universal welding fixture is difficult to realize the reliable positioning and clamping of the inner cavity of the case, and the clamping efficiency is low.
The electric arc welding adopts fillet single-side welding double-side forming and gas shielded welding processes, welding is carried out from the outside of the case, and the welding seam outside the case is well formed. When in welding, the inside of the case is not protected by gas, and the welding seam area inside the case is subjected to oxidation reaction under high temperature, so that the welding seam inside the case is rusted. Particularly, the oxidation reaction after welding of the stainless steel sheet metal case leads the metal surface of the welding seam to be incapable of effectively forming a passivation layer, thus not meeting the requirement of corrosion resistance and generating corrosion in the using process.
The prior art has the following problems:
1. the universal fixture is adopted in the welding process, so that the reliable positioning and clamping of the inner cavity of the case cannot be realized, and the size of the case after welding cannot meet the design requirement. Meanwhile, the universal fixture is adopted for clamping, so that the clamping steps are multiple, and the clamping efficiency is low. The special welding fixture is designed, so that the reliable positioning and clamping of the chassis are realized in the process of welding the sheet metal chassis, and the clamping efficiency and the welding quality are improved.
2. In the welding process, the welding line in the case is not protected by gas, and the welding line area is oxidized by high temperature, so that the internal welding line is rusted. The utility model aims to realize that the inside of the case is protected by gas in the welding process and solve the problem of oxidation and rust at the welding seam inside the case by improving the clamp.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art, and provides a gas shielded welding clamp for a sheet metal case, which realizes accurate positioning and quick clamping during welding of the sheet metal case, improves the clamping efficiency of workpieces, avoids oxidation and rusting of a welding seam inside the case, and can be safely and widely applied to the field of welding of the sheet metal case.
The purpose of the utility model is realized by the following scheme:
a gas shielded welding clamp for a sheet metal case comprises a clamp upper cover assembly and a clamp platform assembly; the clamp upper cover assembly comprises a clamp upper cover, a first positioning block, a gas nozzle, a protective gas passage and a gas switch, wherein the first positioning block is arranged in the clamp upper cover corresponding to each surface, and inclined planes are arranged on four sides of the clamp upper cover and on the first positioning block; the four corners of the upper cover assembly of the clamp are provided with gas nozzles, and the upper cover assembly of the clamp is provided with a protective gas passage and a gas switch; the fixture platform assembly is provided with a cylinder mounting seat, a cylinder and a second positioning module, and the cylinder mounting seat is connected with the cylinder.
Further, four sides of the upper cover of the clamp are used for fixing four sides of the shape of the workpiece.
Further, the first locating block is used for fixing the inner cavity of the workpiece.
Further, the clamp upper cover assembly is provided with a handle.
Further, the fixture platform assembly is provided with a base for positioning and clamping the fixture upper cover assembly with the workpiece mounted thereon.
Further, the second positioning module is a movable positioning block.
The utility model has the beneficial effects that:
the utility model realizes the positioning and clamping of the case by designing the special welding fixture, designs the protective gas channel on the fixture, and leads the protective gas into the case, and mainly protects the welding seam in the case to avoid oxidation, rusting and the like. Specifically, by arranging the positioning and auxiliary positioning mechanism on the welding fixture, accurate positioning during welding of the sheet metal case is realized, and the requirement on welding size is ensured. The clamp adopts an installation mode of positioning the upper cover assembly and clamping the clamp platform, so that rapid clamping is realized, and the workpiece clamping efficiency is improved. During welding, the inside of the case is filled with protective gas through the gas circuit assembly, so that oxidation and rusting of welding seams inside the case are avoided. Based on the advantages, the welding method can be safely and widely applied to the field of welding of the sheet metal chassis.
Drawings
The drawings in the following description are only some embodiments of the utility model, and other drawings can be derived by those skilled in the art without inventive exercise.
FIG. 1 is a schematic diagram of a typical rack-mounted 19-inch enclosure;
FIG. 2 is a schematic diagram of the positioning of a chassis;
FIG. 3 is a schematic view of a clamp upper cover assembly;
FIG. 4 is a schematic view of a clamp platform assembly;
FIG. 5 is a first structural diagram of the upper cover assembly of the fixture;
FIG. 6 is a second structural view of the upper cover assembly of the clamping apparatus;
FIG. 7 is a view of the fixture platform assembly;
FIG. 8 is a schematic view of a workpiece installation;
in the figure, 1-a clamp upper cover, 2-a first positioning block, 3-a workpiece, 4-a gas nozzle, 5-a protective gas passage, 6-a gas switch, 7-a base, 8-a clamp upper cover component, 10-a handle, 11-a cylinder mounting seat, 12-a cylinder, 13-a second positioning module and 14-a clamp platform component.
Detailed Description
All of the features disclosed in all of the embodiments in this specification, or all of the steps in all of the methods or processes implicitly disclosed, may be combined or substituted in any way, except where mutually exclusive features and/or steps are present.
Examples
As shown in fig. 7, a gas shielded welding fixture for a sheet metal enclosure comprises a fixture upper cover assembly 8 and a fixture platform assembly 14; the clamp upper cover assembly 8 comprises a clamp upper cover 1, a first positioning block 2, a gas nozzle 4, a protective gas passage 5 and a gas switch 6, wherein the first positioning block 2 is arranged in the clamp upper cover 1 corresponding to each surface, and inclined surfaces are arranged on four sides of the clamp upper cover 1 and the first positioning blocks 2; the four corners of the clamp upper cover component 8 are provided with gas nozzles 4, and the clamp upper cover component 8 is provided with a protective gas passage 5 and a gas switch 6; the clamp platform assembly 14 is provided with a cylinder mounting seat 11, a cylinder 12 and a second positioning module 13, wherein the cylinder mounting seat 11 is connected with the cylinder 12.
In another embodiment of the present invention, the four sides of the jig upper cover 1 fix the four sides of the outer shape of the workpiece 3.
In other embodiments of the present invention, it should be noted that the first positioning block 2 is used for fixing the inner cavity of the workpiece 3.
In other embodiments of the present invention, the clamp cover assembly 8 is provided with a handle 10.
In other embodiments of the present invention, it should be noted that the fixture platform assembly 14 is provided with a base 7 for positioning and clamping the fixture cover assembly 8 with the workpiece 3 mounted thereon.
In another embodiment of the present invention, it should be noted that the second positioning module 13 is a movable positioning block.
The structural principle of the upper cover assembly 8 of the clamp of the utility model is as follows: the four sides of the workpiece 3 are basically the same, and the positioning structure principle is shown in fig. 2. Because the rigidity of the sheet metal chassis is not high, the conventional 6-degree-of-freedom positioning principle cannot ensure that the chassis is completely fixed in size, and the scheme of the utility model adopts an over-positioning principle. Four sides of the fixture upper cover 1 are used for fixing four sides of the appearance of the workpiece 3, two first positioning blocks 2 for assistance are arranged corresponding to each side inside the fixture upper cover 1, and the inner cavity of the workpiece 3 is fixed. Inclined planes are arranged on the four sides of the upper cover 1 of the clamp and the first positioning block 2, so that the workpiece 3 can be conveniently installed. As shown in fig. 3, a shielding gas passage 5 and a gas circuit switch 6 are designed on the jig upper cover assembly 8. And the four corners of the upper cover assembly 8 of the clamp are provided with gas nozzles 4, so that the positions of four-corner welding seams are protected mainly. In use, the workpiece 3 is placed in the upper cover 1 of the clamp according to the position shown in fig. 2.
As shown in fig. 4, the structural principle of the clamp platform assembly 14 of the present invention is: the fixture platform assembly 14 is provided with a base 7 for positioning and clamping a fixture upper cover assembly 8 with a workpiece 3 mounted thereon, and is constructed in the principle shown in fig. 4. During machining, the workpiece 3 is firstly installed in the clamp upper cover assembly 8, then the clamp upper cover assembly 8 and the workpiece 3 are installed in the clamp platform assembly 14 together, and the cylinder 12 is installed in the cylinder installation seat 11, so that the workpiece 3 and the clamp upper cover assembly 8 can be clamped tightly. Connecting a protective gas pipe on the gas switch 6, turning on the gas switch 6 to fill the inner cavity of the workpiece 3 with protective gas, and meanwhile, performing gas protection on the four-corner welding seam by the nozzle in the welding process. The four sides of the workpiece are completely positioned by the first positioning blocks 2 of the clamp upper cover assembly 8, so that the size requirement of the case is ensured. During welding, the inside of the case is filled with protective gas, so that the oxidation and rusting of the welding line inside the case are avoided. As shown in fig. 5 and 6, the upper cover assembly of the clamp is provided with a handle 10; as shown in fig. 7, the fixture platform assembly is provided with a second positioning module 13, the second positioning module 13 is a movable positioning block, and fig. 8 is a schematic view of the installation of the workpiece 3 by using the present invention.
Other embodiments than the above examples may be devised by those skilled in the art based on the foregoing disclosure, or by adapting and using knowledge or techniques of the relevant art, and features of various embodiments may be interchanged or substituted and such modifications and variations that may be made by those skilled in the art without departing from the spirit and scope of the present invention are intended to be within the scope of the following claims.
Claims (6)
1. A gas shielded welding clamp for a sheet metal chassis is characterized by comprising a clamp upper cover assembly (8) and a clamp platform assembly (14); the clamp upper cover assembly (8) comprises a clamp upper cover (1), first positioning blocks (2), gas nozzles (4), a protective gas passage (5) and a gas switch (6), wherein the first positioning blocks (2) are arranged in the clamp upper cover (1) correspondingly to each surface, and inclined planes are arranged on four sides of the clamp upper cover (1) and the first positioning blocks (2); the four corners of the clamp upper cover component (8) are provided with gas nozzles (4), and the clamp upper cover component (8) is provided with a protective gas passage (5) and a gas switch (6); the clamp platform assembly (14) is provided with a cylinder mounting seat (11), a cylinder (12) and a second positioning module (13), and the cylinder mounting seat (11) is connected with the cylinder (12).
2. The gas shielded welding clamp for the sheet-metal chassis is characterized in that four sides of the upper cover (1) of the clamp fix four sides of the shape of the workpiece (3).
3. The gas shielded welding fixture of sheet-metal cases as claimed in claim 1, wherein said first positioning block (2) is used for fixing the inner cavity of the workpiece (3).
4. The gas shielded welding clamp for the sheet-metal chassis as recited in claim 1, characterized in that the clamp upper cover assembly (8) is provided with a handle (10).
5. The gas-shielded welding fixture for sheet metal boxes according to claim 1, wherein the fixture platform assembly (14) is provided with a base (7) for positioning and clamping a fixture upper cover assembly (8) on which the workpiece (3) is mounted.
6. The gas shielded welding fixture of sheet metal chassis according to claim 1, wherein said second positioning module (13) is a movable positioning block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122604252.3U CN216607767U (en) | 2021-10-27 | 2021-10-27 | Gas shielded welding clamp for sheet metal case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122604252.3U CN216607767U (en) | 2021-10-27 | 2021-10-27 | Gas shielded welding clamp for sheet metal case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216607767U true CN216607767U (en) | 2022-05-27 |
Family
ID=81694446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122604252.3U Active CN216607767U (en) | 2021-10-27 | 2021-10-27 | Gas shielded welding clamp for sheet metal case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216607767U (en) |
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2021
- 2021-10-27 CN CN202122604252.3U patent/CN216607767U/en active Active
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