Tool clamp for automobile plate welding

Abstract

The invention provides a tool clamp for automobile plate welding, and belongs to the technical field of automobile part machining, the tool clamp comprises a welding table, a clamping assembly, a rolling type clamping and pressing assembly, a driving assembly and a welding gun, a support plate is fixedly arranged on the upper portion of the welding table, and the clamping assembly is installed on the support plate; the rolling type clamping and pressing assemblies are used for clamping two to-be-welded automobile plates, the two rolling type clamping and pressing assemblies are oppositely distributed up and down, the welding gun is arranged on the side of one rolling type clamping and pressing assembly, the driving assembly is installed on the support plate, and the welding gun is arranged on the side of the other rolling type clamping and pressing assembly. And the driving assembly is used for driving the welding gun and the two rolling type clamping and pressing assemblies to move horizontally, and the welding gun acts on a welding seam of the two automobile plates when moving horizontally. Compared with the prior art, when the automobile plate is welded, plate welding seam buckling deformation caused by welding heat can be prevented, and therefore the welding quality of the plate is improved.

Description

Technical Field

[0001] This invention belongs to the field of automotive parts processing technology, specifically a tooling fixture for welding automotive sheet metal. Background Technology

[0002] Currently, in the process of processing and producing automotive sheet metal, it is sometimes necessary to weld two or more sheets together.

[0003] In existing technologies, when welding two automotive sheet metal pieces together, a clamping mechanism is mostly used to clamp the two pieces, making them butt-joint to form a weld. Then, a drive mechanism moves the welding torch along the weld seam between the two pieces to weld them together. However, during the welding process, the heat generated on the sheet metal gradually diffuses towards the weld seam as the welding torch moves, causing the weld seam to warp and deform. The warped weld seam cannot be accurately aligned, which affects the welding quality. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a tooling fixture for welding automotive sheet metal.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] A tooling fixture for welding automotive sheet metal includes a welding table, a clamping assembly, a rolling clamping assembly, a drive assembly, and a welding torch.

[0007] A support plate is fixedly installed on the upper part of the welding platform.

[0008] The clamping assembly is mounted on the support plate and is used to clamp the two automotive sheet metal pieces to be welded.

[0009] The rolling clamping assembly is provided in two sets, and the two sets of rolling clamping assemblies are distributed vertically opposite each other.

[0010] The welding torch is positioned to the side of one of the sets of rolling clamping assemblies.

[0011] The drive assembly is mounted on the support plate and is used to drive the welding torch and the two sets of rolling clamping assemblies to move horizontally.

[0012] The welding torch moves horizontally and acts on the weld seam of the two automotive sheet metal pieces to weld them together as one piece.

[0013] When the two sets of rolling clamping components move horizontally, they act on the upper and lower surfaces of the two automotive sheet metal pieces respectively to roll and clamp the two automotive sheet metal pieces.

[0014] As a further improvement of the present invention: the two sets of rolling clamping components have the same structure, both including a slider, a U-shaped frame, and a pressure roller.

[0015] The two sets of U-shaped frames are arranged vertically opposite each other. The two sets of pressure rollers are rotatably mounted inside the two sets of U-shaped frames. The sliders are fixedly mounted on the side walls of both sets of U-shaped frames. The welding torch is fixedly mounted on the side wall of one set of U-shaped frames.

[0016] The drive assembly includes two sets of motors and two sets of lead screws.

[0017] The two sets of lead screws pass through the two sets of sliders respectively and are threadedly engaged with the two sets of sliders. The two sets of motors are fixedly installed on the side wall of the bracket plate and are used to drive the two sets of lead screws to rotate respectively.

[0018] As a further improvement of the present invention: the pressure roller is hollow inside, and a circulation pipe is also provided on the outside of the pressure roller. One end of the circulation pipe is connected to one end of the pressure roller, and the other end is connected to the other end of the pressure roller.

[0019] The pressure roller and the circulation pipe are both filled with cooling water. The welding table is also equipped with a circulation component. When the pressure roller performs rolling clamping on the two plates, the circulation component is used to drive the cooling water to circulate inside the pressure roller and the circulation pipe.

[0020] As a further improvement of the present invention: a vertical plate is fixedly installed on the upper part of the welding platform, and a plurality of arc-shaped blocks distributed horizontally at intervals are fixedly installed on the side wall of the vertical plate.

[0021] The pressure roller has a water inlet pipe rotatably mounted at one end and a water outlet pipe rotatably mounted at the other end. The water inlet pipe and the water outlet pipe pass through the U-shaped frame and are fixedly connected to the U-shaped frame. One end of the circulation pipe is connected to the water inlet pipe, and the other end is connected to the water outlet pipe.

[0022] The circulation assembly includes an elastic element, an annular stop, and a plunger rod.

[0023] One end of the plunger rod extends into the interior of the water outlet pipe and is telescopically coupled with the water outlet pipe, while the other end extends to one side of the upright plate. The annular stop block is fixedly installed outside the plunger rod. One end of the elastic element is connected to the annular stop block, and the other end is connected to the water outlet pipe to provide elastic support for the plunger rod. One-way valves are installed inside both the water outlet pipe and the circulation pipe.

[0024] As a further improvement of the present invention: the elastic element is a spring or a metal sheet.

[0025] As a further improvement to the present invention, the circulation tube is in a spiral shape.

[0026] As a further improvement of the present invention: the clamping assembly includes a support plate and a clamping bolt. The support plate has a U-shaped structure and is fixedly disposed on the side wall of the bracket plate. The clamping bolt is threaded onto the support plate body.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] In this embodiment of the invention, when welding two automotive sheet metal pieces together, the two pieces can be placed above a welding table, and then clamped by a clamping assembly to splice them together. Subsequently, a driving assembly drives two sets of rolling clamping assemblies and a welding torch to move horizontally. When the welding torch moves horizontally, it acts on the weld seam between the two pieces to weld them together. When the two pieces move horizontally, it acts on the upper and lower surfaces of the two pieces respectively, thereby performing rolling clamping on the two pieces. This prevents the weld seam from warping or deforming due to high temperature during the welding process, thus ensuring the welding quality of the two pieces and improving the welding effect. Compared with the prior art, when welding automotive sheet metal, it can prevent the weld seam from warping or deforming due to welding heat, thereby improving the welding quality of the sheet metal. Attached Figure Description

[0029] Figure 1 A schematic diagram of the structure of a tooling fixture for welding automotive sheet metal. Figure 1 ;

[0030] Figure 2 A schematic diagram of the structure of a tooling fixture for welding automotive sheet metal. Figure 2 ;

[0031] Figure 3 A schematic diagram of the structure of a tooling fixture for welding automotive sheet metal. Figure 3 ;

[0032] Figure 4 for Figure 1 Enlarged view of region A in the middle;

[0033] Figure 5 for Figure 1 Enlarged view of region B in the middle;

[0034] Figure 6 for Figure 3 Enlarged diagram of region C in the middle;

[0035] In the diagram: 10-Welding table, 101-Support plate, 102-Upright plate, 103-Arc block, 20-Clamping assembly, 201-Support plate, 202-Clamping bolt, 30-Rolling clamping assembly, 301-Slider, 302-L-shaped frame, 303-Pressure roller, 304-Circulation pipe, 305-Inlet pipe, 306-Outlet pipe, 40-Drive assembly, 401-Motor, 402-Screw, 50-Welding torch, 60-Circulation assembly, 601-Elastic element, 602-Annular stop block, 603-Plunger rod. Detailed Implementation

[0036] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0037] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0038] Please see Figure 1 , Figure 2 as well as Figure 3 This embodiment provides a tooling fixture for welding automotive sheet metal, including a welding table 10, a clamping assembly 20, a rolling clamping assembly 30, a driving assembly 40, and a welding torch 50. A support plate 101 is fixedly installed on the upper part of the welding table 10. The clamping assembly 20 is installed on the support plate 101 and is used to clamp two automotive sheet metal pieces to be welded. There are two sets of rolling clamping assemblies 30, which are arranged vertically opposite each other. The welding torch 50 is located to the side of one set of rolling clamping assemblies 30. The driving assembly 40 is installed on the support plate 101 and is used to drive the welding torch 50 and the two sets of rolling clamping assemblies 30 to move horizontally. When the welding torch 50 moves horizontally, it acts on the weld seam of the two automotive sheet metal pieces to weld the two automotive sheet metal pieces together. When the two sets of rolling clamping assemblies 30 move horizontally, they act on the upper and lower surfaces of the two automotive sheet metal pieces respectively to roll and clamp the two automotive sheet metal pieces.

[0039] When welding two automotive sheet metal pieces together, the two pieces can be placed above the welding table 10, and then the clamping assembly 20 is used to clamp the two pieces, so that the two pieces are spliced ​​together. Then, the driving assembly 40 drives the two sets of rolling clamping assemblies 30 and the welding torch 50 to move horizontally. When the welding torch 50 moves horizontally, it acts on the weld seam between the two pieces to weld the two pieces together. When the two pieces move horizontally, it acts on the upper and lower surfaces of the two pieces respectively, and then performs rolling clamping on the two pieces, thereby preventing the subsequent weld seam from warping and deforming due to high temperature heat during the welding process, thus ensuring the welding quality of the two pieces by the welding torch 50 and improving the welding effect.

[0040] Please see Figure 1 as well as Figure 2 In one embodiment, the two sets of rolling clamping assemblies 30 have the same structure, each including a slider 301, a U-shaped frame 302, and a pressure roller 303. The two sets of U-shaped frames 302 are arranged vertically opposite each other. The two sets of pressure rollers 303 are rotatably disposed inside the two sets of U-shaped frames 302. The slider 301 is fixedly disposed on the side wall of each set of U-shaped frames 302. The welding torch 50 is fixedly disposed on the side wall of one set of U-shaped frames 302. The driving assembly 40 includes two sets of motors 401 and two sets of lead screws 402. The two sets of lead screws 402 pass through the two sets of sliders 301 and are threadedly engaged with the two sets of sliders 301. The two sets of motors 401 are fixedly mounted on the side wall of the support plate 101 and are used to drive the two sets of lead screws 402 to rotate respectively.

[0041] After the clamping assembly 20 clamps the two plates, two sets of motors 401 are started. The two sets of motors 401 drive the two sets of lead screws 402 to rotate. When the two sets of lead screws 402 rotate, they drive the two sets of sliders 301 to move synchronously along the length of the two sets of lead screws 402 through the threaded engagement with the two sets of sliders 301. When the two sets of sliders 301 move synchronously, they drive the two sets of U-shaped frames 302 and the two sets of pressure rollers 303 to move synchronously horizontally. One set of pressure rollers 303 acts on the upper surface of the two plates and rolls along the upper surface of the two plates, while the other set of pressure rollers 303... 03 acts on the lower surface of the two plates and rolls along the lower surface of the two plates, thereby performing rolling clamping on the two plates. When one set of U-shaped frames 302 moves horizontally, it can drive the welding gun 50 to move synchronously. The welding gun 50 acts on the weld seam to weld the two plates into one. When the welding gun 50 is welding the two plates, the two sets of pressure rollers 30 are in front of the welding gun 50 to perform rolling clamping on the two plates, thereby preventing the welding heat from being transferred to the front weld seam and causing the front weld seam to warp and deform, ensuring that the welding gun 50 can complete the welding operation smoothly.

[0042] Please see Figure 1 as well as Figure 3In one embodiment, the pressure roller 303 is hollow inside, and a circulation pipe 304 is provided on the outside of the pressure roller 303. One end of the circulation pipe 304 is connected to one end of the pressure roller 303, and the other end is connected to the other end of the pressure roller 303. Cooling water is contained inside both the pressure roller 303 and the circulation pipe 304. A circulation component 60 is also provided on the welding table 10. When the pressure roller 303 performs rolling clamping on the two plates, the circulation component 60 is used to drive the cooling water to circulate inside the pressure roller 303 and the circulation pipe 304. When the cooling water flows through the inside of the pressure roller 303, it absorbs and dissipates the welding heat on the automotive plates through the roller wall of the pressure roller 303. When the cooling water flows through the inside of the circulation pipe 304, its heat is dissipated to the external environment through the pipe wall of the circulation pipe 304. By cooling and dissipating the welding heat on the two plates with cooling water, the effect of welding heat transfer to the weld seam in front can be reduced, thereby reducing the probability of the weld seam in front being heated and warping.

[0043] Please see Figure 3 , Figure 4 as well as Figure 6 In one embodiment, a vertical plate 102 is fixedly installed on the upper part of the welding table 10. A plurality of horizontally spaced arc-shaped blocks 103 are fixedly installed on the side wall of the vertical plate 102. A water inlet pipe 305 is rotatably connected to one end of the pressure roller 303, and a water outlet pipe 306 is rotatably connected to the other end. The water inlet pipe 305 and the water outlet pipe 306 pass through the U-shaped frame 302 and are fixedly connected to it. One end of the circulation pipe 304 is connected to the water inlet pipe 305, and the other end is connected to the water outlet pipe 306. The circulation assembly 60 includes an elastic element. 601, annular stop 602, and plunger rod 603. One end of the plunger rod 603 extends into the interior of the water outlet pipe 306 and is telescopically engaged with the water outlet pipe 306. The other end extends to one side of the vertical plate 102. The annular stop 602 is fixedly disposed outside the plunger rod 603. One end of the elastic element 601 is connected to the annular stop 602, and the other end is connected to the water outlet pipe 306, which is used to provide elastic support for the plunger rod 603. One-way valves (not shown in the figure) are provided inside both the water outlet pipe 306 and the circulation pipe 304.

[0044] When the lead screw 402 rotates, thereby driving the pressure roller 303 to roll along the surface of the plate, the pressure roller 303 can drive the inlet pipe 305, circulation pipe 304, outlet pipe 306, and plunger rod 603 to move synchronously. When the plunger rod 603 moves, its end can act on the arc surface of several arc blocks 103 in sequence. When the plunger rod 603 acts on the arc surface of a certain group of arc blocks 103, the arc surface of the arc block 103 pushes the plunger rod 603, causing the plunger rod 603 to move into the outlet pipe 306. At this time, the one-way valve inside the outlet pipe 306 is closed, and the one-way valve inside the circulation pipe 304 is open. The plunger rod 603 pressurizes the cooling water inside the circulation pipe 304 to the pressure roller through the inlet pipe 305. Inside 303, when the plunger rod 603 passes the middle position of the arc surface of the arc block 103, the elastic element 601 pushes the plunger rod 603 to move it outward from the water outlet pipe 306. At this time, the one-way valve inside the water outlet pipe 306 opens, and the one-way valve inside the circulation pipe 304 closes. The plunger rod 603 draws the cooling water inside the pressure roller 303 into the water outlet pipe 306. Thus, through the interaction between the plunger rod 603 and several arc blocks 103, the cooling water can circulate along the inside of the pressure roller 303 and the circulation pipe 304 to cool the welding heat on the automotive sheet metal, thereby reducing the deformation of the weld in front of the welding torch 50 and improving the welding quality.

[0045] In one embodiment, the elastic element 601 can be a spring or a metal sheet, and there is no limitation on this.

[0046] Please see Figure 1 , Figure 4 as well as Figure 6 In one embodiment, the circulation pipe 304 is spiral in shape. The spiral shape of the circulation pipe 304 can extend the flow path of the cooling water outside the pressure roller 303, so that the heat in the cooling water can be better dissipated to the external environment.

[0047] Please see Figure 1 as well as Figure 5 In one embodiment, the clamping assembly 20 includes a support plate 201 and a clamping bolt 202. The support plate 201 has a U-shaped structure and is fixedly disposed on the side wall of the bracket plate 101. The clamping bolt 202 is threaded onto the plate body of the support plate 201.

[0048] By placing the edge of the automotive sheet material inside the U-shaped support plate 201, and then rotating the clamping bolt 202, the sheet material is pushed against the inner wall of the support plate 201 through the threaded engagement between the clamping bolt 202 and the support plate 201, thereby achieving the clamping and fixing of the automotive sheet material.

[0049] In this embodiment of the invention, when welding two automotive sheet metal pieces together, the two pieces can be placed above the welding table 10, and then the clamping assembly 20 is used to clamp the two pieces, allowing them to be spliced ​​together. Subsequently, the driving assembly 40 drives two sets of rolling clamping assemblies 30 and the welding torch 50 to move horizontally. When the welding torch 50 moves horizontally, it acts on the weld seam between the two pieces to weld them together. When the two pieces move horizontally, it acts on the upper and lower surfaces of the two pieces respectively, thereby performing rolling clamping on the two pieces. This prevents the subsequent weld seam from warping and deforming due to high temperature during the welding process, thus ensuring the welding quality of the two pieces by the welding torch 50 and improving the welding effect. Compared with the prior art, when welding automotive sheet metal, it can prevent the welding heat from causing the weld seam to warp and deform, thereby improving the welding quality of the sheet metal.

[0050] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A tooling fixture for welding automotive sheet metal, characterized in that, The welding table, clamping assembly, rolling clamping assembly, driving assembly and welding gun, The upper part of the welding table is fixedly provided with a support plate, The clamping assembly is installed on the support plate and used for clamping two automobile plate materials to be welded, The rolling clamping assembly is provided with two groups, and the two groups of rolling clamping assemblies are distributed in an upper-lower opposite manner, The welding gun is arranged on the side of one of the two groups of rolling clamping assemblies, The driving assembly is installed on the support plate and used for driving the welding gun and the two groups of rolling clamping assemblies to move horizontally, When the welding gun moves horizontally, the welding gun acts on the welds of the two automobile plate materials to weld the two automobile plate materials into one, When the two groups of rolling clamping assemblies move horizontally, the two groups of rolling clamping assemblies act on the upper and lower surfaces of the two automobile plate materials respectively to roll and clamp the two automobile plate materials.

2. The fixture clamp for welding an automobile panel according to claim 1, wherein The two groups of rolling clamping assemblies are the same in structure and each include a sliding block, a U-shaped frame and a compression roller, The two U-shaped frames are distributed in an upper-lower opposite manner, and the two groups of compression rollers are rotatably arranged on the inner sides of the two groups of U-shaped frames, respectively. The sliding blocks are fixedly arranged on the side walls of the two groups of U-shaped frames, and the welding gun is fixedly arranged on the side wall of one of the two groups of U-shaped frames, The driving assembly includes two groups of motors and two groups of lead screws, The two groups of lead screws are respectively threaded through the two groups of sliding blocks and are in threaded cooperation with the two groups of sliding blocks. The two groups of motors are fixedly installed on the side walls of the support plate and are used for driving the two groups of lead screws to rotate, respectively.

3. The fixture clamp for welding an automobile panel according to claim 2, wherein The compression roller is hollow inside, and a circulation pipe is further arranged on the outside of the compression roller. One end of the circulation pipe is connected with one end of the compression roller, and the other end of the circulation pipe is connected with the other end of the compression roller, The compression roller and the circulation pipe are both filled with cooling water, and a circulation assembly is further arranged on the welding table. When the compression roller rolls and clamps the two plate materials, the circulation assembly is used for driving the cooling water to flow in the compression roller and the circulation pipe.

4. The fixture clamp for welding an automobile panel according to claim 3, wherein The upper part of the welding table is fixedly provided with a vertical plate, and a plurality of arc-shaped blocks are fixedly installed on the side wall of the vertical plate in a horizontal and spaced manner, One end of the compression roller is rotatably provided with a water inlet pipe, and the other end of the compression roller is rotatably provided with a water outlet pipe. The water inlet pipe and the water outlet pipe penetrate through the U-shaped frame and are fixedly connected with the U-shaped frame. One end of the circulation pipe is connected with the water inlet pipe, and the other end of the circulation pipe is connected with the water outlet pipe, The circulation assembly includes an elastic member, an annular stopper and a plunger rod, One end of the plunger rod extends into the water outlet pipe and is in telescopic cooperation with the water outlet pipe, and the other end of the plunger rod extends to one side of the vertical plate. The annular stopper is fixedly arranged on the outside of the plunger rod. One end of the elastic member is connected with the annular stopper, and the other end of the elastic member is connected with the water outlet pipe. The elastic member is used for providing elastic support for the plunger rod. The water outlet pipe and the circulation pipe are both provided with a one-way valve.

5. The fixture clamp for welding an automobile panel according to claim 4, wherein The elastic member is a spring or a metal spring piece.

6. The fixture clamp for welding an automobile panel according to claim 3, wherein The circulation pipe is in a spiral shape.

7. The fixture clamp for welding an automobile panel according to claim 1, wherein The clamping assembly includes a support plate and a clamping bolt. The support plate is in a U-shaped structure, and the support plate is fixedly arranged on the side wall of the support plate. The clamping bolt is threadedly arranged on the plate body of the support plate.

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