Metal plate welding clamping mechanism

Abstract

The utility model relates to a kind of metal sheet welding clamping mechanisms, including workbench, bottom plate, side support, horizontal positioning assembly, its technical key points are: the middle position of bottom plate is equipped with Y direction welding avoidance groove, the high thermal expansion coefficient Y direction lower support strip block of embedding in the both sides position of bottom plate in Y direction welding avoidance groove, the top surface of two side supports is equipped with mutually parallel Y direction track, Y direction track is equipped with slider, the slider between two Y direction tracks is connected with horizontal support plate, left and right two groups of lifting cylinders are symmetrically equipped in horizontal support plate middle part, the lower end of the cylinder rod of same group lifting cylinder is connected with a compression seat, the opposite surface between two compression seats forms welding operation space corresponding to Y direction welding avoidance groove, the lower surface of compression seat is embedded with the high thermal expansion coefficient Y direction upper compression strip block corresponding to Y direction lower support strip block.This mechanism solves the problem of metal plate edge bending deformation during welding, improves welding quality and reduces subsequent processing problems.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, and specifically to a metal plate welding clamping mechanism. Background Technology

[0002] Welding equipment is an essential tool in the machining of sheet metal. To broaden its application, clamping mechanisms are typically designed to accommodate various sheet metal sizes and welding angles.

[0003] For example, CN 222176497 U discloses a multi-angle plate welding clamping device. Its main housing has an upward-opening threaded cavity, within which are two sets of threaded sliders that can move towards each other with opposite threads. A positioning frame is fixed to the upper surface of the threaded sliders. Two sets of symmetrical support frames are fixed to the front and rear end faces of the positioning frame. A pneumatic telescopic rod capable of telescopic movement is installed within the support frame, adjusting the docking height. A limiting frame is fixed to the other end of the pneumatic telescopic rod, and a pushing cavity connected to the outside is provided within the limiting frame, thereby driving the threaded screw to rotate, which in turn drives the threaded sliders to dock with the positioning frame, thus docking the clamped plates. This device has good versatility, but the clamping mechanism used, like most existing mechanisms, neglects the following problem: the edges of the metal plates may bend and deform due to heat accumulation during welding, increasing the difficulty of post-weld processing. Utility Model Content

[0004] The purpose of this invention is to provide a metal plate welding clamping mechanism with a reasonable structure and reliable use, to solve the problem of bending and deformation of the metal plate edges during welding, improve welding quality, and reduce post-processing difficulties.

[0005] The technical solution of this utility model is: A metal plate welding clamping mechanism includes a worktable, a base plate above the worktable, side supports on the left and right sides of the base plate, and a horizontal positioning component on the side supports. The key technical features are: a Y-direction welding clearance groove is provided in the middle of the base plate; Y-downward support blocks with high thermal expansion coefficients are embedded on both sides of the Y-direction welding clearance groove; parallel Y-direction tracks are provided on the top surfaces of the two side supports; sliders are provided in the Y-direction tracks; a horizontal support plate connects the sliders of the two Y-direction tracks; two sets of lifting cylinders are symmetrically arranged in the middle of the horizontal support plate, each set consisting of two lifting cylinders arranged along the Y-direction; the lower ends of the cylinder rods of the two lifting cylinders in the same set are connected to a clamping seat; a welding operation space corresponding to the Y-direction welding clearance groove is formed between the opposite surfaces of the two clamping seats; and a Y-upward clamping block with a high thermal expansion coefficient, corresponding to the Y-downward support block, is embedded on the lower surface of the clamping seat.

[0006] The aforementioned metal plate welding clamping mechanism includes a horizontal positioning component comprising two X-axis electric push rods fixed at intervals to the front of the side support, and an X-axis push plate connected between the ends of the telescopic rods of the two X-axis electric push rods. The lower end face of the X-axis push plate is in contact with the upper surface of the base plate.

[0007] In the aforementioned metal plate welding clamping mechanism, the lower surface of the clamping seat is fitted with multiple roller assemblies. Each roller assembly consists of a support shaft and rollers assembled on the support shaft using bearings. The clamping seat is provided with a longitudinal groove corresponding to the support shaft. A compression spring is connected between the top surface of the longitudinal groove and the support shaft. The lower end of the roller protrudes from the lower surface of the clamping seat.

[0008] In the aforementioned metal plate welding clamping mechanism, the front part of the upper surface of the base plate is the workpiece clamping area, and the rear part is the horizontal support plate switching area. The Y-axis track extends from the workpiece clamping area to the horizontal support plate switching area.

[0009] The aforementioned metal plate welding clamping mechanism has two Y-direction limiting blocks spaced apart at the front end of the upper surface of the base plate.

[0010] The beneficial effects of this utility model are: During welding, a welding torch is held in a tool clamp and welded to two metal plates along the welding operation space. During this process, a lifting cylinder ensures that the lower surface of the clamping seat and the Y-shaped upward clamping strip are in close contact with the metal plates. The heat generated during welding is conducted to the Y-shaped downward support strip and the Y-shaped upward clamping strip, causing them to expand and compress the metal plates at high temperatures, thus constraining their deformation and preventing welding deformation. This solves the problem of bending deformation at the edges of the metal plates during welding, improves welding quality, and reduces subsequent processing difficulties. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 Top view; Figure 3 yes Figure 1 Enlarged view of section A.

[0012] In the diagram: 1. Side support, 2. Y-axis rail, 3. Horizontal support plate, 4. Lifting cylinder, 5. X-axis push plate, 6. X-axis electric push rod, 7. Worktable, 8. Base plate, 9. Y-axis downward support block, 10. Y-axis limit block, 11. Metal sheet, 12. Y-axis welded clearance groove, 13. Pressing seat, 14. Compression spring, 15. Roller assembly, 16. Y-axis upward pressing block. Detailed Implementation

[0013] The present invention will be described in detail with reference to the accompanying drawings.

[0014] like Figures 1-3 As shown, the metal plate welding clamping mechanism includes a worktable 7, a base plate 8 disposed above the worktable 7, side supports 1 disposed on the left and right sides of the base plate 8, and a horizontal positioning assembly disposed on the side supports 1. In this embodiment, the horizontal positioning assembly includes two X-direction electric push rods 6 fixed at intervals to the front of the side supports 1, and an X-direction push plate 5 connected between the ends of the telescopic rods of the two X-direction electric push rods 6. The lower end surface of the X-direction push plate 5 is in contact with the upper surface of the base plate 8.

[0015] The base plate 8 has a Y-direction welding clearance groove 12 in the middle, and Y-direction downward support blocks 9 with high thermal expansion coefficients are embedded on both sides of the Y-direction welding clearance groove 12.

[0016] The top surfaces of the two side supports 1 are provided with parallel Y-axis tracks 2, and sliders are provided in the Y-axis tracks 2. A horizontal support plate 3 is connected between the sliders of the two Y-axis tracks 2. The horizontal support plate 3 is symmetrically provided with two sets of lifting cylinders 4, one on the left and one on the right. Each set of lifting cylinders 4 consists of two lifting cylinders 4 arranged along the Y-axis. The lower ends of the cylinder rods of the two lifting cylinders 4 in the same set are connected to a pressing seat 13. A welding operation space corresponding to the Y-axis welding clearance groove 12 is formed between the opposite surfaces of the two pressing seats 13. The lower surface of the pressing seat 13 is fitted with a Y-axis pressing bar 16 with a high coefficient of thermal expansion, corresponding to the Y-axis downward support bar 9.

[0017] In this embodiment, the lower surface of the clamping seat 13 is fitted with multiple roller assemblies 15. Each roller assembly 15 consists of a support shaft and rollers assembled on the support shaft using bearings. The clamping seat 13 has a longitudinal groove corresponding to the support shaft. A compression spring 14 is connected between the top surface of the longitudinal groove and the support shaft. The lower end of the roller protrudes from the lower surface of the clamping seat 13. The front part of the upper surface of the base plate 8 is a workpiece clamping area, and the rear part is a horizontal support plate switching area. The Y-axis track 2 extends from the workpiece clamping area to the horizontal support plate switching area. Two Y-axis limiting blocks 10 are spaced apart at the front end of the upper surface of the base plate 8.

[0018] Working principle: 1. When in use, place the two metal plates 11 to be welded on the base plate 8. The Y-direction limiting block 10 is in close contact with the front edge of the metal plate 11 to achieve Y-direction positioning. Then, the two horizontal positioning components are used to achieve X-direction positioning, so that the opposite ends of the two metal plates 11 are connected and the joint is located directly above the Y-direction welding clearance groove 12.

[0019] 2. Push the horizontal support plate 3, which will drive the clamping seat 13 and other components from the horizontal support plate switching area to the workpiece clamping area. Then, extend the cylinder rod of the lifting cylinder 4 to make the roller contact the upper surface of the metal plate 11, perform Z-axis pre-positioning on the metal plate 11, and roll and connect to facilitate adjustment of the horizontal position of the pressing.

[0020] 3. Using a tool to hold the welding torch, weld the two metal plates 11 along the welding operation space. During this process, activate the lifting cylinder 4 and press down again, so that the lower surface of the clamping seat 13 and the Y-up clamping bar 16 are in close contact with the metal plate 11. The heat generated during the welding process is conducted to the Y-down support bar 9 and the Y-up clamping bar 16, and the two expand and squeeze the metal plate 11 at high temperature, constraining its deformation and achieving the purpose of restricting the occurrence of welding deformation.

[0021] 4. After welding is completed, reset the clamping seat 13, horizontal support plate 3, and horizontal positioning assembly. Then remove the welded parts.

[0022] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made within the scope of this utility model should still fall within the scope of this patent.

Claims

1. A metal plate welding clamping mechanism, comprising a worktable, a base plate disposed above the worktable, side supports disposed on the left and right sides of the base plate, and a horizontal positioning assembly disposed on the side supports, characterized in that: The base plate has a Y-direction welding clearance groove in the middle. The base plate has Y-direction downward support blocks with high thermal expansion coefficient embedded on both sides of the Y-direction welding clearance groove. The top surfaces of the two side supports have parallel Y-direction tracks. The Y-direction tracks have sliders. A horizontal support plate is connected between the sliders of the two Y-direction tracks. The horizontal support plate has two sets of lifting cylinders symmetrically arranged in the middle, left and right. Each set of lifting cylinders consists of two lifting cylinders arranged along the Y direction. The lower ends of the cylinder rods of the two lifting cylinders in the same set are connected to a pressing seat. The opposite surfaces of the two pressing seats form a welding operation space corresponding to the Y-direction welding clearance groove. The lower surface of the pressing seat is fitted with a Y-direction upward pressing block with high thermal expansion coefficient corresponding to the Y-direction downward support block.

2. The metal plate welding clamping mechanism according to claim 1, characterized in that: The horizontal positioning assembly includes two X-axis electric push rods fixed at a distance from the front of the side support, and an X-axis push plate connected between the ends of the telescopic rods of the two X-axis electric push rods. The lower end face of the X-axis push plate is in contact with the upper surface of the base plate.

3. The metal plate welding clamping mechanism according to claim 1, characterized in that: The lower surface of the clamping seat is fitted with multiple roller assemblies. Each roller assembly consists of a support shaft and rollers assembled on the support shaft using bearings. The clamping seat has a longitudinal groove corresponding to the support shaft. A compression spring is connected between the top surface of the longitudinal groove and the support shaft. The lower end of the roller protrudes from the lower surface of the clamping seat.

4. The metal plate welding clamping mechanism according to claim 1, characterized in that: The front part of the upper surface of the base plate is the workpiece clamping area, and the rear part is the horizontal support plate switching area. The Y-axis track extends from the workpiece clamping area to the horizontal support plate switching area.

5. The metal plate welding clamping mechanism according to claim 1, characterized in that: The front end of the upper surface of the base plate is provided with two Y-direction limiting blocks spaced apart.

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