CN220612810U

CN220612810U - Multifunctional fixing tool

Info

Publication number: CN220612810U
Application number: CN202322156593.8U
Authority: CN
Inventors: 林皓; 夏宁; 刘庭宾; 周禄军; 陈菲; 杨腾; 王震; 胡俊; 钦伟
Original assignee: CRRC Nanjing Puzhen Rail Transport Co Ltd
Current assignee: CRRC Nanjing Puzhen Rail Transport Co Ltd
Priority date: 2023-08-11
Filing date: 2023-08-11
Publication date: 2024-03-19
Anticipated expiration: 2033-08-11

Abstract

The utility model discloses a multifunctional fixing tool, which comprises: two parallel movable guide rails 2 and two test board placing tables for connecting and welding test boards, wherein the movable guide rails are provided with connecting grooves along the length direction; the test board placing table is characterized in that connecting pieces are arranged on two side faces of the test board placing table 1, the connecting pieces are connected in the connecting grooves in a sliding mode, and fixing pieces used for fixing the position of the test board placing table are further arranged on the connecting pieces. According to the test board placing table, the positions of the connecting pieces on the side surfaces of the test board placing table in the connecting grooves are adjusted, the relative positions of the two test board placing tables can be achieved, the test board placing table can be fixed through the action of the movable guide rails and the fixing pieces on the two sides, the relative positions of the two test board placing tables are adjusted, namely the adjustment of the positions of the welding test boards on the test board placing table is achieved, and welding of test boards with different welding positions and different joint types is achieved.

Description

Multifunctional fixing tool

Technical Field

The utility model relates to the technical field of welding tools, in particular to a multifunctional fixing tool.

Background

With the development and progress of advanced welding technology, the welding process is increasingly used in the mechanical equipment manufacturing industry. The reasonable use of the welding fixture is one of the basic elements for guaranteeing the quality of the welding process of the parts. Therefore, the welding tool and the clamp have wide application space in the manufacturing industry. In recent years, a precision combination welding tool system based on a modularized and standardized idea is widely applied in the manufacturing industry of large-scale mechanical equipment by virtue of the excellent characteristics of the precision combination welding tool system in the aspects of technology and production application. However, under the large environment that various semi-automatic, automatic and intelligent tools are applied in a large amount to manufacture welding products, the welder is neglected to still use the traditional positioning spot welding when performing the welder examination, and no special fixing tool for working test pieces exists.

At present, when a welder performs European standard examination or work test piece examination, positioning spot welding is needed to be performed on the welding test plates, and the two welding test plates are assembled into corresponding welding joint shapes in advance. When the positioning spot welding is carried out, the conditions of reserved reverse deformation and welding gaps are often considered, the workload is increased intangibly, and the quality of welding seams and welding defects are poor and the quality or examination of a welding test board is unqualified possibly because the manual positioning spot welding is low in assembly size precision.

The patent application with publication number CN 116038204A is that a square groove with a groove is formed in the center of a platform plate, and the included angle between grooves on two sides of the square groove with the groove is 90 degrees; the inner surface of one side of the triangular support plate is symmetrically milled with a groove, a cushion block is arranged in the groove, one side of the triangular support plate provided with the groove is provided with a clamping plate, one side of the clamping plate is provided with a notch, the notch is clamped with the cushion block, the upper end of the clamping plate is provided with a threaded hole, and the compression bolt is abutted with the cushion block through the threaded hole. The scheme has fixed welding position, can only weld flat fillet welding (ship-shaped welding), and can not realize welding of different welding positions and different welding joint types.

Disclosure of Invention

The utility model aims to provide a multifunctional fixing tool for solving the problem that welding of different welding positions and different joint types cannot be realized in the prior art.

In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme:

a multi-functional fixed tooling, comprising:

two parallel movable guide rails, wherein the movable guide rails are provided with connecting grooves along the length direction;

two test board placing tables used for connecting welding test boards, connecting pieces are arranged on two side faces of each test board placing table, the test board placing tables are connected in the connecting grooves in a sliding mode through the connecting pieces, and fixing pieces used for fixing the positions of the test board placing tables are further arranged on the connecting pieces.

Further, the connecting piece is a positioning stud, the fixing piece is a fixing nut, and the fixing nut is in threaded connection with the positioning stud.

Further, the positioning stud is welded or integrally formed on the side surface of the test board placing table.

Further, a rail device is arranged on the top surface of the test board placing table, and a clamping piece for clamping the welding test board is connected in a sliding manner in the rail device;

the track device comprises a plurality of transverse guide rails and a longitudinal guide rail communicated with the transverse guide rails.

Further, the transverse guide rail and the longitudinal guide rail are inverted T-shaped grooves.

Further, the clamping piece comprises a test plate fixing stud sliding in the inverted T-shaped groove and a fixing nut connected to the test plate fixing stud;

and rotating the fixing nut to loosen or clamp the welding test plate on the test plate placing table.

Further, the test plate fixing stud comprises a cylindrical piece sliding in the T-shaped groove and a stud used for connecting a fixing nut, and the stud is connected to the top surface of the cylindrical piece.

Further, the test board placing table is of a cuboid plate-shaped structure.

Further, the board placing table and the movable guide rail are made of brass or pure copper.

Further, the fixing nut and the positioning stud are made of brass or pure copper.

According to the technical scheme, the utility model has the beneficial effects that:

according to the test board placing table, the positions of the connecting pieces on the side surfaces of the test board placing table in the connecting grooves are adjusted, the relative positions of the two test board placing tables can be achieved, the test board placing table can be fixed through the action of the movable guide rails and the fixing pieces on the two sides, the relative positions of the two test board placing tables are adjusted, namely the adjustment of the positions of the welding test boards on the test board placing table is achieved, and welding of test boards with different welding positions and different joint types is achieved.

Drawings

FIG. 1 is a southwest isometric view of a multifunctional fixture of the present application;

FIG. 2 is a front view of the multifunctional fixture of the present application;

FIG. 3 is a schematic view of the butt joint of the test plate of the multifunctional fixture of the present application;

fig. 4 is a schematic view of a test board corner joint of the multifunctional fixing tool.

Wherein: 1. a test board placing table; 2. a movable guide rail; 21. a connecting groove; 3. a fixing nut; 4. fixing a stud on the test board; 5. a track device; 6. positioning a stud; 7. welding a test board I; 8. welding a test board II.

Description of the embodiments

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

It should be noted that, in the description of the present utility model, the directions or positional relationships indicated by the terms "front", "rear", "left", "right", "upper", "lower", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and do not require that the present utility model must be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. The terms "front", "back", "left", "right", "upper", "lower" as used in the description of the present utility model refer to directions in the drawings, and the terms "inner", "outer" refer to directions toward or away from the geometric center of a particular component, respectively.

The welding fixture is widely applied to various welding manufacturing industries as one of the fixture fixtures. The key technology of the welding tool comprises the following points:

the welding tool is made of a metal material which is different from the welding part, and the melting point of the welding part material is lower than that of the tool material, so that the welding tool cannot be sticky. For example, when welding aluminum alloy, a fixture made of carbon steel or copper is used. Meanwhile, the hardness of the welding fixture is lower than or the same as that of the weldment, so that the surface of the weldment is prevented from being scratched.

Welding tools can be divided into fixed tools and flexible tools, and the fixed tools are generally used in large-scale and structurally fixed batch welding manufacturing products. The flexible chemical industry is usually matched with automatic welding equipment to form a set of welding system, and the flexible chemical industry has the automatic attribute, and has the characteristics of quick clamping, convenient mold changing and high production efficiency.

The welding fixture mainly plays roles of positioning, assembling and clamping, and is used for restraining a plurality of degrees of freedom of a welding part, and the principle is that the assembly precision is improved, the welding quality is ensured, and the welding deformation is reduced.

The welding tool should follow the principles of simple and firm structure, low cost, convenient use, high safety and the like in the production and manufacturing process.

The welding tool provided by the application can realize the welding of test boards with different welding positions and different joint types.

Examples

As shown in fig. 1 and 2, a multifunctional fixing tool includes: two parallel movable guide rails 2 and two test board placing tables 1 for connecting and welding test boards, wherein the movable guide rails 2 are provided with connecting grooves 21 along the length direction; the two sides of the test board placing table 1 are respectively provided with a connecting piece, the connecting pieces are connected in the connecting grooves 21 in a sliding mode, and fixing pieces used for fixing the position of the test board placing table 1 are further arranged on the connecting pieces.

In a specific embodiment, the present application includes a test plate placement table 1, a movable rail 2, a fixed nut 3, a test plate fixing stud 4, a positioning stud 6, and the like. The components are all made of metal materials with good thermal conductivity, such as pure copper, brass and the like, and rapid heat dissipation, and can be used for welding metal test plates, such as aluminum alloy, carbon steel, stainless steel, titanium alloy and the like.

Further, the test panel placement table 1 has a rectangular parallelepiped plate-like structure, and the dimensions are 400mm×200mm×20mm. The short sides of the test board placing table 1 are respectively provided with a positioning stud 6, the size of the positioning stud is 5mm in radius of the bottom surface and 50mm in height, and the outer surface is provided with threads. The positioning stud 6 is fixedly connected with the test board placing table 1, and can be permanently connected in a welding mode or integrally machined and formed at one time.

As shown in fig. 1 and 2, the fixing nut 3 has the shape of two hollow cylinders, the large cylinder has a bottom radius of 15mm and a height of 10mm, and the small cylinder has a bottom radius of 10mm and a height of 10mm. And (3) internally digging holes, and boring internal threads, wherein the size of the digging holes is 5mm in bottom radius and 20mm in height. The fixing nut 3 is used for positioning and fixing the welding test plate I7 and the welding test plate II 8 and is also used for fixing the test plate placing table 1 and the movable guide rail 2.

Further, the movable guide rails 2 are rectangular, the size of the movable guide rails 2 is 400mm×20mm, the inside of the movable guide rails is hollow, namely, the connecting groove 21, the size of the hollow part is 390mm×20mm×10mm, the two movable guide rails 2 are respectively sleeved on the positioning studs 6 of the two test board placing tables 1, and fixing at different positions is performed by using the fixing nuts 3 according to the welding joint mode.

Patent publication CN 217122161U discloses a welding plate tooling for clamping two test plates and one test bar for laser welding. The utility model is only limited to the combination butt welding of the skin sheet and the rod-shaped test piece, and has insufficient flexibility. The restraint degree of the skin test plate is insufficient, and the transverse expansion and contraction amount of the test plate can not be controlled during welding. In order to solve the problem of insufficient constraint on the welded test plate, the scheme is further improved, and the scheme is realized through the clamping piece.

Specifically, the top surface of the test board placing table 1 is provided with a rail device 5, and a clamping piece for clamping the welding test board is connected in a sliding manner in the rail device 5; the track arrangement 5 comprises a plurality of transverse rails and a longitudinal rail in communication with the transverse rails.

As shown in fig. 1 and 2, the test plate fixing stud 4 is formed by combining two cylinders, wherein the size of a large cylinder (i.e. a cylinder piece) is 10mm in bottom radius and 5mm in height, the size of a small cylinder is 5mm in bottom radius and 40mm in height, and the outer surface of the small cylinder is provided with threads.

The upper surface of the test board placing table 1 is provided with a track device 5, the track device 5 comprises six transverse guide rails and three longitudinal guide rails, the transverse guide rails and the longitudinal guide rails are in inverted T-shaped grooves, a large cylinder of the test board fixing stud 4 can be clamped in, the test board fixing stud can slide freely in the track device 5, and a special fixing nut is matched for positioning and fixing a welding test board.

In the present application, the number of assemblies of the test panel fixing stud 4 and the fixing nut 3 can be freely increased or decreased according to the welding test panel specification and size.

Examples

Fig. 3 is a schematic view of the butt joint of the test board for the multifunctional fixture. Firstly, unscrewing the fixing nuts 3 of the test board placing table 1 and the movable guide rail 2, roughly adjusting the distance between the two test board placing tables 1 according to the size of the welded test board, ensuring that the test board placing tables 1 and the movable guide rail 2 are on the same horizontal plane, and then screwing the fixing nuts 3 to fix the test board placing tables 1 and the movable guide rail 2.

Further, the first welding test plate 7 and the second welding test plate 8 are respectively placed on the fixed test plate placing table 1, the two welding test plates are aligned, a welding gap is adjusted, a large cylindrical head of the test plate fixing stud 4 is inserted into the inverted T-shaped groove, the welding test plate is slid to the edge of the welding test plate to be close, and the fixing nut 3 is screwed into a small cylindrical head of the test plate fixing stud 4 until the welding test plate is screwed, so that the welding deformation can be reduced. The number of special fixing nuts 3 and test plate fixing studs 4 assemblies is increased or decreased according to the size of the welded test plate.

Furthermore, after the two welding test plates are fixed, welding operation, namely PA position welding, can be performed, and butt welding of PC, PF and PE positions can be further completed by matching with a welding workbench. After the welding is finished, the welding piece can be taken down by unscrewing the special fixing nut 3 on the test plate fixing stud 4.

Examples

Fig. 4 is a schematic view of a test board corner joint for the multifunctional fixing tool. Firstly, the fixing nuts 3 of the test board placing table 1 and the movable guide rail 2 are unscrewed, so that the fixed test board placing table 1 and the movable guide rail 2 are horizontally placed, and then the welding test board I7 and the welding test board II 8 are respectively placed at the corresponding positions of the two test board placing tables 1. The large cylindrical head of the test plate fixing stud 4 is inserted into the inverted T-shaped groove and slides to the edge of the welding test plate to be close, and then the fixing nut 3 is screwed into the small cylindrical head of the test plate fixing stud 4 until the welding deformation can be reduced.

Further, two test board placing tables are adjusted to be perpendicular to each other, fixing nuts 3 are screwed, the test board placing table 1 and the movable guide rail 2 are fixed, and at the moment, the welded test boards of the angle joint T-shaped joint are assembled.

Further, after the assembly of the welding test plate is completed, welding operation, namely PB position welding, can be performed, and butt welding of ship-shaped welding, PC, PF and PE positions can be further completed by matching with a welding workbench. After the welding is finished, the welding piece can be taken down by unscrewing the special fixing nut 3 on the test plate fixing stud 4.

Furthermore, the special fixing nuts 3 of the test board placing table 1 and the movable guide rail 2 can be adjusted, the angle of the welded test board can be changed after unscrewing, and after screwing the special fixing nuts 3 again, the welding of the angle joint test boards with different angles can be carried out

In combination, the tool can be used for welding the welding test plates with various welding seam types, such as butt welding seams, angle joint welding seams, T-shaped welding seams with angles and the like. The utility model has small volume and simple structure, and can weld PA, PB, PC, PD, PE, PF, PG at various positions. The test board fixing device restrains the welding test board, and welding deformation is reduced. In the actual operation process, welding personnel do not need the positioning welding step of the welding test plate before welding, so that the assembly time is saved, and the assembly precision is improved.

It will be appreciated by those skilled in the art that the present utility model can be carried out in other embodiments without departing from the spirit or essential characteristics thereof. Accordingly, the above disclosed embodiments are illustrative in all respects, and not exclusive. All changes that come within the scope of the utility model or equivalents thereto are intended to be embraced therein.

Claims

1. Multifunctional fixing tool, which is characterized by comprising:

two parallel movable guide rails (2), wherein the movable guide rails (2) are provided with connecting grooves (21) along the length direction;

two test board placing tables (1) used for connecting welding test boards, connecting pieces are arranged on two side faces of each test board placing table (1), the two test board placing tables are connected in the connecting grooves (21) in a sliding mode through the connecting pieces, and fixing pieces used for fixing the positions of the test board placing tables (1) are further arranged on the connecting pieces.

2. The multifunctional fixing tool according to claim 1, wherein the connecting piece is a positioning stud (6), the fixing piece is a fixing nut (3), and the fixing nut (3) is in threaded connection with the positioning stud (6).

3. The multifunctional fixing tool according to claim 2, wherein the positioning stud (6) is welded or integrally formed on the side surface of the test board placing table (1).

4. The multifunctional fixing tool according to claim 1, wherein a track device (5) is arranged on the top surface of the test board placing table (1), and a clamping piece for clamping the welding test board is connected in a sliding manner in the track device (5);

the track device (5) comprises a plurality of transverse guide rails and a longitudinal guide rail communicated with the transverse guide rails.

5. The multifunctional fixing tool of claim 4, wherein the transverse guide rail and the longitudinal guide rail are inverted-T-shaped grooves.

6. The multifunctional fixing tool according to claim 5, wherein the clamping piece comprises a test plate fixing stud (4) sliding in the inverted-T-shaped groove and a fixing nut (3) connected to the test plate fixing stud (4);

the fixing nut (3) is rotated to loosen or clamp the welding test plate on the test plate placing table (1).

7. The multifunctional fixing tool according to claim 6, wherein the test plate fixing stud (4) comprises a cylindrical piece sliding in the T-shaped groove and a stud for connecting a fixing nut (3), and the stud is connected to the top surface of the cylindrical piece.

8. The multifunctional fixing tool according to any one of claims 1-7, wherein the test panel placing table (1) is a rectangular parallelepiped plate-like structure.

9. The multifunctional fixing tool according to any one of claims 1-7, wherein the test board placing table (1) and the movable guide rail (2) are made of brass or pure copper.

10. The multifunctional fixing tool according to claim 2, wherein the fixing nut (3) and the positioning stud (6) are made of brass or pure copper.