Workpiece clamping tool

Abstract

The utility model discloses a work piece clamping frock relates to welding processing fixture technical field, including bottom plate, the upper end surface of bottom plate is provided with fixed plate and movable plate, and the one side of fixed plate and movable plate all is provided with mounting plate, and the inside of mounting plate is rotatably connected with two -way screw rod through bearing, and the both ends fixed connection of two -way screw rod has knob, and the both ends of two -way screw rod all are screwed together with clamping plate, and the one end of clamping plate is provided with bolt, and the one end fixed connection of bolt has clamping block, and the inner wall of clamping block is fitted with work piece main part. In the utility model, the work piece main part is fixed and centered by rotating knob and moving clamping plate inward simultaneously, and it is convenient to device clamping work piece main part of different size, and the telescopic electric push rod makes the connecting piece slide to the suitable position in the inside of sliding slot, improves the adaptability of device, and the stability of device clamping work piece is further improved by bolt through clamping plate and threaded mounting nut to replace different clamping blocks.

Description

Technical Field

[0001] This utility model relates to the field of welding processing fixture technology, and in particular to a workpiece clamping fixture. Background Technology

[0002] Welding fixtures are used to ensure the size of the weldment, improve assembly accuracy and efficiency, and prevent welding deformation. In welding processes, it is usually necessary to fix and clamp the workpiece.

[0003] Existing workpiece clamping fixtures are not easy to handle workpieces of different sizes, which may reduce the adaptability of the device. Existing workpiece clamping fixtures are not easy to replace and install different clamping parts, which may reduce the stability of the device when handling workpieces. Therefore, a workpiece clamping fixture is provided. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a workpiece clamping fixture. By rotating a knob, the clamping plates move inward simultaneously to fix and center the workpiece body, facilitating the clamping of workpiece bodies of different sizes. The extension and retraction of the electric push rod allows the connecting parts to slide to a suitable position inside the slide groove, improving the adaptability of the device. Bolts pass through the clamping plates and nuts are threaded on to allow for the replacement of different clamping blocks, further improving the stability of the device when clamping workpieces and overcoming the shortcomings of existing technologies.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A workpiece clamping fixture includes a base plate. A fixed plate and a movable plate are provided on the upper surface of the base plate. A mounting plate is provided on one side of both the fixed plate and the movable plate. A bidirectional threaded rod is rotatably connected to the inside of the mounting plate via bearings. A knob is fixedly connected to both ends of the bidirectional threaded rod. A clamping plate is threaded to both ends of the bidirectional threaded rod. A bolt is passed through one end of the clamping plate. A clamping block is fixedly connected to one end of the bolt. A workpiece body is clamped to the inner wall of the clamping block. A sliding groove is provided on the base plate. A connecting piece is slidably engaged in the sliding groove. A support block is fixedly connected to one end of the base plate and to the side of the connecting piece. An electric push rod is fixedly connected to the top of the support block. A connecting pipe is connected to one end of the electric push rod and to one side of the movable plate.

[0007] As a further improvement of this utility model: sliding columns are fixedly connected to both the upper and lower sides of the mounting plate, and the surface of the sliding columns is slidably connected to the inside of the clamping plate.

[0008] As a further improvement of this utility model: both ends of the sliding column are fixedly connected to side plates, and the interior of the side plates is rotatably connected to the end of the bidirectional threaded rod through bearings.

[0009] As a further improvement of this utility model: the surface of the bolt is threaded with a nut, and the inner side of the nut abuts against the outer wall of the clamping plate.

[0010] As a further embodiment of this utility model: a crank handle is fixedly connected to the outer side of one of the mounting plates, and the crank handle is rotatably mounted on the top of the fixed plate via a bearing.

[0011] As a further improvement of this utility model: the two mounting plates are equidistant from the base plate, and the mounting plate on one side of the movable plate is connected to the top of the movable plate by screws.

[0012] As a further improvement of this utility model, a support frame is fixedly connected to the bottom surface of the base plate near the four corners.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. By rotating the knob, the clamping plates move inward simultaneously to fix and center the workpiece body, making it easier for the device to clamp workpiece bodies of different sizes. The extension and retraction of the electric push rod allows the connecting parts to slide to the appropriate position inside the slide groove, improving the adaptability of the device.

[0015] 2. By bolting through the clamping plates and threading nuts to install different clamping blocks, the stability of the device when clamping workpieces is further improved. Attached Figure Description

[0016] Figure 1 This is a first-view three-dimensional structural diagram of a workpiece clamping fixture proposed in this utility model.

[0017] Figure 2 This is a schematic diagram of the first partial disassembled structure of a workpiece clamping fixture proposed in this utility model.

[0018] Figure 3 This is a schematic diagram of the second partial disassembled structure of a workpiece clamping fixture proposed in this utility model.

[0019] Figure 4 This is a partial cross-sectional structural diagram of a workpiece clamping fixture proposed in this utility model.

[0020] In the diagram: 1. Base plate; 2. Support frame; 3. Fixing plate; 4. Mounting plate; 5. Two-way threaded rod; 6. Knob; 7. Side plate; 8. Sliding column; 9. Clamping plate; 10. Clamping block; 11. Bolt; 12. Nut; 13. Workpiece body; 14. Slide groove; 15. Connecting piece; 16. Support block; 17. Electric push rod; 18. Connecting pipe; 19. Crank handle; 20. Movable plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Example 1, referring to Figure 1-4 A workpiece clamping fixture includes a base plate 1. A fixed plate 3 and a movable plate 20 are provided on the upper end surface of the base plate 1. A mounting plate 4 is provided on one side of both the fixed plate 3 and the movable plate 20. A bidirectional threaded rod 5 is rotatably connected to the inside of the mounting plate 4 through a bearing. A knob 6 is fixedly connected to both ends of the bidirectional threaded rod 5. A clamping plate 9 is threadedly engaged at both ends of the bidirectional threaded rod 5. A bolt 11 is provided through one end of the clamping plate 9. A clamping block 10 is fixedly connected to one end of the bolt 11. A workpiece body 13 is clamped and installed on the inner wall of the clamping block 10. A sliding groove 14 is provided on the base plate 1. A connecting piece 15 is slidably engaged at the sliding groove 14. A support block 16 is fixedly connected to one end of the base plate 1 and to the side of the connecting piece 15. An electric push rod 17 is fixedly connected to the top of the support block 16. A connecting pipe 18 is connected to one end of the electric push rod 17 and is connected to one side of the movable plate 20.

[0023] Sliding columns 8 are fixedly connected to both the upper and lower sides of the mounting plate 4. The surface of the sliding column 8 is slidably connected to the inside of the clamping plate 9. During operation, the sliding column 8 limits the angle of the clamping plate 9 through the structural design of the sliding connection between the surface of the sliding column 8 and the inside of the clamping plate 9, so that the clamping plate 9 will not shift, thus improving the stability of the device during operation.

[0024] Both ends of the sliding column 8 are fixedly connected to side plates 7. The interior of the side plates 7 is rotatably connected to the end of the bidirectional threaded rod 5 through bearings. During operation, the structural design of the side plates 7 fixedly connected to both ends of the sliding column 8 limits the movement range of the clamping plate 9, thereby improving the stability of the device during operation.

[0025] The bolt 11 has a threaded fit with a nut 12. The inner side of the nut 12 abuts against the outer wall of the clamping plate 9. Through the structural design of the bolt 11 and the inner side of the nut 12 abutting against the outer wall of the clamping plate 9, the nut 12 can fix the clamping block 10, making it easy to replace and fix the clamping block 10.

[0026] A crank handle 19 is fixedly connected to the outer side of one of the mounting plates 4. The crank handle 19 is rotatably mounted on the top of the fixed plate 3 via a bearing. By fixing the crank handle 19 to the side of one of the mounting plates 4, it is convenient to adjust the angle of the workpiece on the mounting plate 4, thereby improving the adaptability of the device.

[0027] The two mounting plates 4 are at the same distance from the base plate 1, and the mounting plate 4 on one side of the movable plate 20 is connected to the top of the movable plate 20 by screws.

[0028] When it is necessary to clamp the workpiece body 13, first, the workpiece body 13 is placed against the surface of the mounting plate 4. At this time, the knob 6 is turned so that the clamping plate 9 moves inward to fix and center the workpiece body 13. By turning the rocker handle 19, the mounting plate 4 connected to the rocker handle 19 rotates, which in turn drives the workpiece body 13 to rotate, thereby adjusting the relative angle between the two workpiece bodies 13. The electric push rod 17 is started by connecting an external power source. The electric push rod 17 pushes the movable plate 20 to move, which in turn drives the connecting piece 15 to move along the slide groove 14 to the appropriate position. The two workpiece bodies 13 are pressed together, which facilitates the processing of the workpiece body 13. When dealing with workpiece bodies 13 of different sizes, the bolt 11 passes through the clamping plate 9 and the nut 12 is threaded on to replace different clamping blocks 10, which improves the stability of the device during clamping.

[0029] Example 2 is an optimization based on Example 1, specifically:

[0030] Support frames 2 are fixedly connected to the bottom surface of the base plate 1 near the four corners, which provides stable support for the base plate 1.

[0031] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A workpiece clamping fixture, comprising a base plate (1), characterized in that, The upper surface of the base plate (1) is provided with a fixed plate (3) and a movable plate (20). A mounting plate (4) is provided on one side of both the fixed plate (3) and the movable plate (20). A double-threaded rod (5) is rotatably connected to the inside of the mounting plate (4) through a bearing. A knob (6) is fixedly connected to both ends of the double-threaded rod (5). A clamping plate (9) is threaded to both ends of the double-threaded rod (5). A bolt (11) is provided through one end of the clamping plate (9). A clamping device is fixedly connected to one end of the bolt (11). The inner wall of the clamping block (10) is fitted with the workpiece body (13). The bottom plate (1) has a sliding groove (14). A connector (15) is slidably engaged at the sliding groove (14). A support block (16) is fixedly connected to one end of the bottom plate (1) and to the side of the connector (15). An electric push rod (17) is fixedly connected to the top of the support block (16). One end of the electric push rod (17) is connected to a connecting pipe (18). The connecting pipe (18) is connected to one side of the movable plate (20).

2. The workpiece clamping fixture according to claim 1, characterized in that, The mounting plate (4) is fixedly connected to sliding columns (8) on both the upper and lower sides, and the surface of the sliding column (8) is slidably connected to the inside of the clamping plate (9).

3. The workpiece clamping fixture according to claim 2, characterized in that, Both ends of the slide (8) are fixedly connected to side plates (7), and the interior of the side plates (7) is rotatably connected to the end of the bidirectional threaded rod (5) through bearings.

4. The workpiece clamping fixture according to claim 1, characterized in that, The bolt (11) has a nut (12) threaded on its surface, and the inner side of the nut (12) abuts against the outer wall of the clamp (9).

5. The workpiece clamping fixture according to claim 1, characterized in that, One of the mounting plates (4) is fixedly connected to a crank (19) on the outside, and the crank (19) is rotatably mounted on the top of the fixed plate (3) via a bearing.

6. The workpiece clamping fixture according to claim 1, characterized in that, The two mounting plates (4) are at the same distance from the base plate (1), and the mounting plate (4) on one side of the movable plate (20) is connected to the top of the movable plate (20) by screws.

7. The workpiece clamping fixture according to claim 1, characterized in that, The bottom surface of the base plate (1) is fixedly connected to the support frame (2) near the four corners.

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