Detachable fixing device for robot welding

Abstract

The utility model relates to the technical field of fixing devices, and discloses a detachable fixing device for robot welding, which comprises a working table, a groove is formed in the upper end of the working table, a limiting groove is formed in the inner wall of the groove, a mounting seat is arranged in the groove, the inner wall of the mounting seat is in threaded connection with a bidirectional screw rod, and the bidirectional screw rod is in threaded connection with the limiting groove. The top of the mounting base is fixedly connected with a protruding plate, and the upper end of the mounting base is provided with a cambered surface clamping plate. According to the clamping device, the bolts are disassembled, fixation of the plane clamping plate is omitted, the plane clamping plate is taken down, a cambered surface workpiece can be clamped and fixed through the cambered surface clamping plate, adjustment can be conveniently carried out according to the shape of the workpiece, different workpieces can be conveniently clamped, and practicability is improved; the arc-surface clamping plates can be maintained or the arc-surface clamping plates of different sizes can be replaced by moving the inserting grooves out of the protruding plates, operation is easy and convenient, and the overall using convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fixing devices, in particular to a detachable fixing device for robot welding. Background Art

[0002] A welding robot is an industrial robot that is used for welding. It has three or more programmable axes and is used in the field of industrial automation. In order to adapt to different uses, the mechanical interface of the last axis of the robot is usually a connecting flange that can be connected to different tools or end effectors. A welding robot is an industrial robot that has a welding tong or welding (cutting) gun connected to its end axis flange, so that it can perform welding, cutting or thermal spraying.

[0003] During use, the workpiece to be welded is fixed by a fixing device, and then the workpiece is welded by a welding robot. Most of the clamping plates of existing fixing devices are fixed, which makes it inconvenient to disassemble and maintain the position of the clamping plate, and it is inconvenient to adjust the shape of the clamping plate according to the shape of the workpiece, resulting in poor effect when clamping different workpieces. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a detachable robot welding fixture.

[0005] The utility model is implemented by the following technical scheme: a detachable fixing device for robot welding, comprising a workbench, a groove is provided at the upper end of the workbench, a limiting groove is provided on the inner wall of the groove, a mounting seat is arranged inside the groove, a bidirectional screw rod is threadedly connected to the inner wall of the mounting seat, a protruding plate is fixedly connected to the top of the mounting seat, an arc-surface clamping plate is arranged at the upper end of the mounting seat, a plug-in groove is provided at the bottom of the arc-surface clamping plate, a threaded hole is provided on one side of the arc-surface clamping plate, a plane clamping plate is arranged at the left end of the arc-surface clamping plate, and a bolt is threadedly connected to the inner wall of the plane clamping plate.

[0006] Through the above technical solution, the arc-surface splint is plugged into the plug-in groove at the bottom of the arc-surface splint and the protruding plate, which facilitates the subsequent rapid removal and replacement of the arc-surface splint, thereby improving the convenience of use.

[0007] As a further improvement of the above scheme, extension plates are fixedly connected to both ends of the mounting seat, and the surface of the extension plate is slidably connected to the inner wall of the limiting groove. There are four mounting seats, and the four mounting seats are symmetrically distributed with the workbench as the center.

[0008] Through the above technical solution, the extension plate slides on the inner wall of the limiting groove to limit the position of the mounting seat, so that the stability of the mounting seat is improved when it moves.

[0009] As a further improvement of the above scheme, both ends of the bidirectional screw are rotatably connected to the inner wall of the groove, the right end of the bidirectional screw passes through the workbench and extends to the outside of the workbench, and the right end of the bidirectional screw is fixedly connected to a handwheel.

[0010] Through the above technical scheme, the bidirectional screw is rotated by turning the hand wheel. Since the threads on both sides of the bidirectional screw are opposite, the mounting seats move closer to each other, and the workpieces are clamped and fixed by arc-surface clamps or plane clamps. Two bidirectional screws are provided, so two workpieces can be clamped and fixed at the same time, thereby improving welding efficiency.

[0011] As a further improvement of the above solution, the protruding plate is plugged into the plug-in groove, the bottom of the arc-surface clamping plate contacts the upper surface of the mounting seat, and the bolt passes through the plane clamping plate and is threadedly connected to the inner wall of the threaded hole.

[0012] According to the technical solution, the plane clamp can be disassembled by removing the bolts, so that it can be adjusted according to workpieces of different shapes.

[0013] As a further improvement of the above solution, the right end of the plane clamp is in contact with the left end of the curved clamp, the curved clamp and the plane clamp are a group of two, and two groups of the curved clamp and the plane clamp are provided.

[0014] Through the above technical solution, the clamping effect of the workpiece is improved by using multiple clamping plates, thereby preventing the workpiece from moving during welding.

[0015] As a further improvement of the above solution, a limiting hole is provided at the bottom of the workbench, and a support column is inserted into the inner wall of the limiting hole. There are four support columns, and the four support columns are symmetrically distributed around the workbench.

[0016] Through the above technical solution, the workbench is supported by the support columns.

[0017] As a further improvement of the above solution, the inner wall of the workbench is threadedly connected with a threaded rod, and the lower end of the threaded rod passes through the workbench and is threadedly connected to the inner wall of the support column.

[0018] Through the above technical solution, the support column can be disassembled by disassembling the threaded rod, which facilitates the subsequent transportation of the workbench and reduces the occupied space.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] The utility model is provided with bolts, a plane clamp, a curved clamp, a plug-in groove and a protruding plate. Specifically, the bolts are removed to cancel the fixation of the plane clamp, and the plane clamp is taken down. The curved clamp can be used to clamp and fix the curved workpiece, which is convenient for adjustment according to the shape of the workpiece and convenient for clamping different workpieces, thereby improving practicality. The curved clamp is pulled upward to move the plug-in groove out of the inside of the protruding plate, so that the curved clamp can be maintained or replaced with curved clamps of different sizes. The operation is simple and convenient, thereby improving the convenience of overall use.

[0021] The utility model arranges a hand wheel, a two-way screw rod, a mounting seat, a curved clamping plate and a plane clamping plate. Specifically, the hand wheel is rotated to drive the two-way screw rod to rotate on the inner wall of the groove, drive the mounting seat to move, and at the same time the extension plate slides on the inner wall of the limit groove to guide the position of the mounting seat. When the mounting seat moves, it drives the plane clamping plates to move closer to each other, clamps and fixes the workpieces, avoids the workpieces from moving during welding, and can clamp and fix two workpieces at the same time by two groups of curved clamping plates and plane clamping plates, thereby improving the efficiency of welding the workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the explosion structure of the curved splint and the flat splint of the utility model;

[0025] Figure 4 This is a schematic diagram of the exploded structure of the workbench and support column of the utility model;

[0026] Figure 5 It is a schematic diagram of the structure of a workbench of the utility model.

[0027] Description of main symbols:

[0028] Workbench; 2. Groove; 3. Limiting groove; 4. Mounting seat; 5. Bidirectional screw; 6. Handwheel; 7. Extension plate; 8. Protruding plate; 9. Arc clamping plate; 10. Plug-in groove; 11. Threaded hole; 12. Flat clamping plate; 13. Bolt; 14. Limiting hole; 15. Support column; 16. Threaded rod. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment. Example

[0030] Please combine Figure 1-5 A detachable robot welding fixture of this embodiment includes a workbench 1, a groove 2 is provided at the upper end of the workbench 1, a limiting groove 3 is provided on the inner wall of the groove 2, a mounting seat 4 is provided inside the groove 2, a bidirectional screw rod 5 is threadedly connected to the inner wall of the mounting seat 4, a protruding plate 8 is fixedly connected to the top of the mounting seat 4, a curved clamping plate 9 is provided at the upper end of the mounting seat 4, a plug-in groove 10 is provided at the bottom of the curved clamping plate 9, a threaded hole 11 is provided on one side of the curved clamping plate 9, and a flat clamping plate 12 is provided at the left end of the curved clamping plate 9 The inner wall of the plane clamping plate 12 is threadedly connected with a bolt 13. By turning the hand wheel 6, the bidirectional screw rod 5 is driven to rotate on the inner wall of the groove 2, driving the mounting seat 4 to move. At the same time, the extension plate 7 slides on the inner wall of the limit groove 3 to guide the position of the mounting seat 4. When the mounting seat 4 moves, the plane clamping plates 12 are driven to move closer to each other to clamp and fix the workpiece to prevent the workpiece from moving during welding. The two sets of arc clamping plates 9 and the plane clamping plates 12 can clamp and fix two workpieces at the same time, thereby improving the efficiency of welding the workpieces.

[0031] Both ends of the mounting seat 4 are fixedly connected with extension plates 7, and the surface of the extension plate 7 is slidably connected to the inner wall of the limiting groove 3. There are four mounting seats 4, and the four mounting seats 4 are symmetrically distributed with the workbench 1 as the center.

[0032] Both ends of the bidirectional screw rod 5 are rotatably connected to the inner wall of the groove 2 , the right end of the bidirectional screw rod 5 passes through the workbench 1 and extends to the outside of the workbench 1 , and the right end of the bidirectional screw rod 5 is fixedly connected to a handwheel 6 .

[0033] The protruding plate 8 is plugged into the plug-in groove 10, and the bottom of the curved clamping plate 9 contacts the upper surface of the mounting seat 4. The bolt 13 passes through the plane clamping plate 12 and is threadedly connected to the inner wall of the threaded hole 11. By removing the bolt 13, the fixation of the plane clamping plate 12 is cancelled, and the plane clamping plate 12 is removed. The curved clamping plate 9 can be used to clamp and fix the curved workpiece, which is convenient for adjustment according to the shape of the workpiece and for clamping different workpieces, thereby improving practicality. The curved clamping plate 9 is pulled upward so that the plug-in groove 10 is removed from the inside of the protruding plate 8, and the curved clamping plate 9 can be maintained or replaced with curved clamping plates 9 of different sizes. The operation is simple and convenient, which improves the convenience of overall use.

[0034] The right end of the plane clamp 12 contacts the left end of the arc clamp 9 , the arc clamp 9 and the plane clamp 12 form a group, and there are two groups of the arc clamp 9 and the plane clamp 12 .

[0035] A limiting hole 14 is provided at the bottom of the workbench 1 , and a supporting column 15 is inserted into the inner wall of the limiting hole 14 . There are four supporting columns 15 , and the four supporting columns 15 are symmetrically distributed around the workbench 1 .

[0036] The inner wall of the workbench 1 is threadedly connected with a threaded rod 16, and the lower end of the threaded rod 16 passes through the workbench 1 and is threadedly connected to the inner wall of the support column 15. By removing the threaded rod 16 and canceling the fixation of the support column 15, the four support columns 15 can be disassembled, so that the support column 15 and the workbench 1 are separated, which is convenient for subsequent transportation of the whole.

[0037] The implementation principle of a detachable robot welding fixture in the embodiment of the present application is as follows: when in use, the hand wheel 6 is rotated to drive the bidirectional screw rod 5 to rotate on the inner wall of the groove 2, driving the mounting seat 4 to move, and at the same time the extension plate 7 slides on the inner wall of the limit groove 3 to guide the position of the mounting seat 4. When the mounting seat 4 moves, it drives the planar clamping plates 12 to move closer to each other, clamping and fixing the workpiece to avoid movement of the workpiece during welding. Two sets of arc clamping plates 9 and planar clamping plates 12 can be used to clamp and fix two workpieces at the same time, thereby improving the efficiency of workpiece welding. By removing the bolts 13, the fixing of the planar clamping plates 12 is canceled. The curved surface clamp 9 can be used to clamp and fix the curved workpiece, which is convenient for adjustment according to the shape of the workpiece and for clamping different workpieces, thereby improving practicality. The curved surface clamp 9 is pulled upward to move the insertion groove 10 out from the inside of the protruding plate 8, so that the curved surface clamp 9 can be maintained or replaced with curved surface clamps 9 of different sizes, and the operation is simple and convenient, thereby improving the convenience of overall use. By removing the threaded rod 16 and canceling the fixation of the support column 15, the four support columns 15 can be disassembled, so that the support column 15 and the workbench 1 are separated, which is convenient for subsequent transportation of the whole.

[0038] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A detachable robot welding fixture, characterized in that: The invention comprises a workbench (1), wherein a groove (2) is provided at the upper end of the workbench (1), a limit groove (3) is provided on the inner wall of the groove (2), a mounting seat (4) is provided inside the groove (2), a bidirectional screw rod (5) is threadedly connected to the inner wall of the mounting seat (4), a protruding plate (8) is fixedly connected to the top of the mounting seat (4), an arc-surface clamping plate (9) is provided at the upper end of the mounting seat (4), a plug-in groove (10) is provided at the bottom of the arc-surface clamping plate (9), a threaded hole (11) is provided on one side of the arc-surface clamping plate (9), a plane clamping plate (12) is provided at the left end of the arc-surface clamping plate (9), and a bolt (13) is threadedly connected to the inner wall of the plane clamping plate (12).

2. A detachable robot welding fixture as claimed in claim 1, characterized in that: An extension plate (7) is fixedly connected to both ends of the mounting seat (4), and a surface of the extension plate (7) is slidably connected to the inner wall of the limiting groove (3). There are four mounting seats (4), and the four mounting seats (4) are symmetrically distributed with the workbench (1) as the center.

3. A detachable robot welding fixture as claimed in claim 1, characterized in that: Both ends of the bidirectional screw rod (5) are rotatably connected to the inner wall of the groove (2); the right end of the bidirectional screw rod (5) passes through the workbench (1) and extends to the outside of the workbench (1); and the right end of the bidirectional screw rod (5) is fixedly connected to a hand wheel (6).

4. A detachable robot welding fixture as claimed in claim 1, characterized in that: The protruding plate (8) is plugged into the plug-in groove (10), the bottom of the arc-surface clamping plate (9) contacts the upper surface of the mounting seat (4), and the bolt (13) passes through the plane clamping plate (12) and is threadedly connected to the inner wall of the threaded hole (11).

5. A detachable robot welding fixture as claimed in claim 4, characterized in that: The right end of the plane clamping plate (12) contacts the left end of the curved clamping plate (9); the curved clamping plate (9) and the plane clamping plate (12) form a group, and two groups of the curved clamping plate (9) and the plane clamping plate (12) are provided.

6. A detachable robot welding fixture as claimed in claim 3, characterized in that: A limiting hole (14) is provided at the bottom of the workbench (1), and a support column (15) is inserted into the inner wall of the limiting hole (14). There are four support columns (15), and the four support columns (15) are symmetrically distributed around the workbench (1).

7. A detachable robot welding fixture as claimed in claim 6, characterized in that: The inner wall of the workbench (1) is threadedly connected to a threaded rod (16), and the lower end of the threaded rod (16) passes through the workbench (1) and is threadedly connected to the inner wall of the support column (15).

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