Clamping tool convenient to adjust

Abstract

The utility model discloses a clamping tool convenient to adjust, which comprises a placing table, a clamping mechanism, a clamping mechanism and a clamping mechanism, the clamping device comprises a plurality of clamping blocks and a driving assembly; the adjusting device comprises a worm and a semi-worm gear which are meshed with each other; and the connecting plate is fixedly connected to the lower end of the placing table, and a base is arranged below the connecting plate. The movable rods on the front side, the rear side and the two sides are driven by the driving assembly to drive the clamping blocks to move towards the close ends, a workpiece is clamped in four directions, clamping is more stable, and the situation that the workpiece is loosened or unstable in the machining process is avoided; and the side convex part slides in the arc-shaped groove through the arc-shaped groove, so that angle adjustment is facilitated, inclined machining of a workpiece is facilitated, repeated clamping is not needed, and the machining efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of clamping fixture technology, specifically to a clamping fixture that is easy to adjust. Background Technology

[0002] Clamping fixtures, also known as tooling fixtures, are process equipment used in the manufacturing process to clamp workpieces or guide cutting tools. They typically consist of positioning elements, clamping devices, and tool setting and guiding elements. Their function is to quickly secure the workpiece during machining, ensuring the correct relative position of the machine tool, cutting tool, and workpiece. Clamping fixtures ensure workpiece machining accuracy, stabilize product quality, improve labor productivity, reduce costs, improve worker working conditions, ensure safe production, and expand the range of machine tool processes. They are widely used in many fields such as machining and electronics manufacturing.

[0003] The existing technology still has some problems: 1. When the existing clamping fixture fixes the workpiece, it only clamps it from two positions, which may result in unstable fixing. This may cause the workpiece to shake or shift during processing, affecting the processing accuracy.

[0004] 2. Many workpieces require tilted holes or tilted machining. Adjusting the workpiece angle by clamping the tool can keep the workpiece surface to be machined and the tool in the best relative position. If it is not easy to adjust, the workpiece needs to be clamped repeatedly to adjust the workpiece angle, which is complicated.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the above-mentioned defects and provide a clamping fixture that is easy to adjust.

[0007] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0008] An easily adjustable clamping fixture includes:

[0009] A placement platform, wherein the placement platform is a regular rectangle;

[0010] A clamping device, comprising a plurality of clamping blocks and a driving assembly, wherein the driving assembly is used to drive the clamping blocks to move closer together for clamping.

[0011] An adjustment device, comprising a worm and a semi-worm gear meshing with each other, wherein the adjustment device adjusts the angle of the placement platform by the worm engaging with the semi-worm gear at different positions;

[0012] A connecting plate is fixedly connected to the lower end of the placement platform, and a base is provided below the connecting plate.

[0013] As an improvement, the placement platform has a cavity, and the driving assembly includes a turntable disposed in the middle of the cavity. A support rod is rotatably connected to the lower middle of the turntable, and the lower end of the support rod is fixedly connected to the lower end of the inner wall of the cavity. Arc-shaped sliding grooves are opened on both the front and rear sides of the upper end of the turntable. The sliding grooves are circumferentially distributed, and a slider is slidably connected in the sliding groove. The slider is engaged in the sliding groove.

[0014] As an improvement, a movable rod is fixedly connected to the lower end of the slider, and the disjoint ends of the movable rods on both the front and rear sides extend through the placement platform to the outside. The movable rods and the placement platform are movably connected, and the clamping block is fixedly connected to the upper ends of the movable rods on both the front and rear sides.

[0015] As an improvement, a gear ring is fixedly connected to the outer periphery of the turntable, and a gear is meshed with the outer periphery of the gear ring. A motor is fixedly connected to the lower end of the gear, and the lower end of the motor is fixedly connected to the lower end of the inner wall of the cavity.

[0016] As an improvement, the lower end of the connecting plate is fixedly connected to the front and rear parts of the connecting plate, the lower end of the connecting plate is provided with a rotating groove, a rotating seat is provided below the connecting plate, and the front and rear ends of the rotating seat are fixedly connected to slide rails. The rotating seat and the slide rails are both semi-circular.

[0017] As an improvement, the lower end of the side protrusion has an arc-shaped groove. The shape of the arc-shaped groove is adapted to the upper end of the slide rail and slides in close contact. The middle of the lower end of the arc-shaped groove extends through the slide rail to the bottom and is fixedly connected to a locking block. The locking block is slidably connected to the side of the slide rail away from the side protrusion. The rotating seat and the slide rail are both fixedly connected to the upper end of the base.

[0018] As an improvement, both sides of the worm are connected to a fixed plate with bearings. The fixed plate is fixedly connected to the inner wall of the rotating groove. The half-worm gear is meshed with the lower end of the worm and fixedly connected to the middle of the upper end of the rotating seat.

[0019] As an improvement, a second motor is fixedly connected to the end of the fixed plate away from the worm gear on one side, and the output shaft of the second motor is fixedly connected to the worm gear.

[0020] The advantages of this utility model compared with the prior art are: 1. The workpiece to be processed is placed on the upper part of the placement platform, and then the drive component drives the front, back and side moving rods to move the clamping blocks toward the near end, clamping the workpiece in four directions, making the clamping more stable and preventing the workpiece from becoming loose or unstable during processing.

[0021] 2. When angle adjustment is required, the second motor drives the worm gear to rotate, which causes the worm gear to move together with the connecting plate and the placement table on the half worm wheel. The side protrusion slides in the arc groove, which facilitates angle adjustment and makes it easier to tilt the workpiece without repeated clamping, thus improving processing efficiency. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of the present invention. Figure 1 ;

[0023] Figure 2 This is a three-dimensional schematic diagram of the present invention. Figure 2 ;

[0024] Figure 3 This is a cross-sectional view of the present invention;

[0025] Figure 4 This is a schematic diagram of the adjustment device of this utility model. Figure 1 ;

[0026] Figure 5 yes Figure 4 Enlarged view of area A in the image;

[0027] Figure 6 This is a schematic diagram of the adjustment device of this utility model. Figure 2 ;

[0028] Figure 7 This is a cross-sectional view of the adjustment device of this utility model;

[0029] As shown in the figure: 1. Placement platform; 2. Clamping device; 3. Clamping block; 4. Adjustment device; 5. Worm gear; 6. Half worm gear; 7. Connecting plate; 8. Base; 9. Cavity; 10. Turntable; 11. Support rod; 12. Slide groove; 13. Slider; 14. Moving rod; 15. Gear ring; 16. Gear; 17. Motor 1; 18. Side protrusion; 19. Rotating groove; 20. Rotating seat; 21. Slide rail; 22. Arc groove; 23. Locking block; 24. Fixing plate; 25. Motor 2. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings.

[0031] Combined with appendix Figures 1-7 An easily adjustable clamping fixture includes: a placement platform 1, a clamping device 2, an adjustment device 4, and a connecting plate 7. The placement platform 1 is rectangular, and the clamping device 2 includes several clamping blocks 3 and a driving assembly. The driving assembly drives the clamping blocks 3 to move closer together for clamping.

[0032] Next, a cavity 9 is opened in the placement platform 1. The drive assembly includes a turntable 10 set in the middle of the cavity 9. A support rod 11 is rotatably connected to the lower middle of the turntable 10. The lower end of the support rod 11 is fixedly connected to the lower end of the inner wall of the cavity 9. Arc-shaped sliding grooves 12 are opened on both the front and rear sides of the upper end of the turntable 10. The sliding grooves 12 are circumferentially distributed. A slider 13 is slidably connected in the sliding groove 12. The slider 13 is locked in the sliding groove 12. A moving rod 14 is fixedly connected to the lower end of the slider 13. The disjoint ends of the moving rods 14 on both the front and rear sides pass through the placement platform 1 and extend to the outside. The moving rods 14 and the placement platform 1 are movably connected. The clamping block 3 is fixedly connected to the upper near side of the moving rods 14 on both the front and rear sides.

[0033] In order to drive the turntable 10 to rotate, a gear ring 15 is fixedly connected to the outer periphery of the turntable 10, a gear 16 is meshed with the outer periphery of the gear ring 15, a motor 17 is fixedly connected to the lower end of the gear 16, the motor 17 has a self-locking function, and the lower end of the motor 17 is fixedly connected to the lower end of the inner wall of the cavity 9.

[0034] Motor 17 drives gear 16 to rotate counterclockwise, which in turn drives gear ring 15 to rotate clockwise. Since the slide groove 12 is arc-shaped, as it rotates with turntable 10, the moving rod 14 moves parallel to the placement table 1, and the slider 13 slides in the slide groove 12 away from the center of turntable 10. The moving rods 14 at the front, back, and sides drive the clamping blocks 3 to move towards the opposite end, leaving enough space to place the workpiece on the upper end of the placement table 1. Then, motor 17 drives gear 16 to rotate clockwise, which in turn drives gear ring 15 to rotate counterclockwise. The slider 13 slides in the slide groove 12 towards the center of turntable 10, and the moving rods 14 at the front, back, and sides drive the clamping blocks 3 to move towards the near end, clamping the workpiece in four directions for a more stable clamping and preventing loosening or instability during processing.

[0035] Then, the connecting plate 7 is fixedly connected to the lower end of the placement platform 1. A base 8 is provided below the connecting plate 7. The adjustment device 4 includes a worm 5 and a semi-worm wheel 6 that mesh with each other. The adjustment device 4 adjusts the angle of the placement platform 1 by meshing the worm 5 with the semi-worm wheel 6 at different positions. The lower end of the connecting plate 7 is fixedly connected to the front and rear parts of ...

[0036] Specifically, the lower end of the side protrusion 18 has an arc-shaped groove 22. The shape of the arc-shaped groove 22 is adapted to the upper end of the slide rail 21 and slides in close contact. The middle of the lower end of the arc-shaped groove 22 extends through the slide rail 21 and is fixedly connected to a locking block 23. The locking block 23 is slidably connected to the side of the slide rail 21 away from the side protrusion 18. The rotating seat 20 and the slide rail 21 are both fixedly connected to the upper end of the base 8.

[0037] Both sides of the worm 5 are connected to a fixed plate 24 by bearings. The fixed plate 24 is fixedly connected to the inner wall of the rotating groove 19. The half worm wheel 6 is meshed with the lower end of the worm 5 and fixedly connected to the middle of the upper end of the rotating seat 20. The end of one fixed plate 24 away from the worm 5 is fixedly connected to a second motor 25. The second motor 25 has a self-locking function, and the output shaft of the second motor 25 is fixedly connected to the worm 5.

[0038] When angle adjustment is required, motor 25 drives worm 5 to rotate, and worm 5 drives the semi-worm wheel 6 that meshes with it. However, since the semi-worm wheel 6 is fixed on the rotating seat 20, and the rotating seat 20 is fixedly connected to the base 8, the worm 5 moves together with the connecting plate 7 and the placement table 1 driven by the semi-worm wheel 6. The side protrusion 18 slides in the arc groove 22, and the locking block 23 is slidably connected to the side of the slide rail 21 away from the side protrusion 18. While sliding, it limits the movement, which is convenient for angle adjustment and facilitates the tilting of the workpiece without repeated clamping, thus improving processing efficiency.

[0039] It should be noted that all electrical components mentioned in this article are connected to an external main controller and 220V AC mains power. The main controller can be a conventional known device such as a computer. The specific implementation of this disclosure omits detailed descriptions of known functions and components. To ensure device compatibility, the operating methods used are consistent with the parameters of commercially available instruments.

[0040] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A clamping fixture that is easy to adjust, characterized in that, include: Placement platform (1), wherein the placement platform (1) is a regular rectangle; The clamping device (2) includes a plurality of clamping blocks (3) and a driving assembly, the driving assembly being used to drive the clamping blocks (3) to move closer to each other for clamping; Adjustment device (4), the adjustment device (4) includes a worm (5) and a half worm wheel (6) that mesh with each other. The adjustment device (4) adjusts the angle of the placement platform (1) by the worm (5) meshing with the half worm wheel (6) at different positions. A connecting plate (7) is fixedly connected to the lower end of the placement platform (1), and a base (8) is provided below the connecting plate (7).

2. The easily adjustable clamping fixture according to claim 1, characterized in that: The placement platform (1) has a cavity (9) inside. The driving assembly includes a turntable (10) located in the middle of the cavity (9). A support rod (11) is rotatably connected to the lower middle of the turntable (10). The lower end of the support rod (11) is fixedly connected to the lower end of the inner wall of the cavity (9). Arc-shaped sliding grooves (12) are opened on both the front and rear sides of the upper end of the turntable (10). The sliding grooves (12) are circumferentially distributed. A slider (13) is slidably connected in the sliding groove (12). The slider (13) is engaged in the sliding groove (12).

3. The easily adjustable clamping fixture according to claim 2, characterized in that: The slider (13) is fixedly connected to a moving rod (14) at its lower end. The moving rods (14) on both the front and rear sides extend through the placement platform (1) to the outside. The moving rods (14) and the placement platform (1) are movably connected. The clamping block (3) is fixedly connected to the upper end of the moving rods (14) on both the front and rear sides.

4. The easily adjustable clamping fixture according to claim 2, characterized in that: A gear ring (15) is fixedly connected to the outer periphery of the turntable (10), and a gear (16) is meshed with the outer periphery of the gear ring (15). A motor (17) is fixedly connected to the lower end of the gear (16), and the lower end of the motor (17) is fixedly connected to the lower end of the inner wall of the cavity (9).

5. The easily adjustable clamping fixture according to claim 1, characterized in that: The lower end of the connecting plate (7) is fixedly connected to the front and rear parts of the side protrusions (18), and the middle of the lower end of the connecting plate (7) is provided with a rotating groove (19). A rotating seat (20) is provided below the connecting plate (7). The front and rear ends of the rotating seat (20) are fixedly connected to slide rails (21). Both the rotating seat (20) and the slide rails (21) are semi-circular.

6. The easily adjustable clamping fixture according to claim 5, characterized in that: The lower end of the side protrusion (18) has an arc-shaped groove (22). The shape of the arc-shaped groove (22) is adapted to the upper end of the slide rail (21) and slides in close contact. The middle part of the lower end of the arc-shaped groove (22) extends through the slide rail (21) and is fixedly connected to a locking block (23). The locking block (23) is slidably connected to the side of the slide rail (21) away from the side protrusion (18). The rotating seat (20) and the slide rail (21) are both fixedly connected to the upper end of the base (8).

7. The easily adjustable clamping fixture according to claim 5, characterized in that: Both sides of the worm (5) are connected to a fixed plate (24) by bearings. The fixed plate (24) is fixedly connected to the inner wall of the rotating groove (19). The half worm wheel (6) is meshed with the lower end of the worm (5) and is fixedly connected to the middle of the upper end of the rotating seat (20).

8. The easily adjustable clamping fixture according to claim 7, characterized in that: One end of the fixed plate (24) on one side away from the worm (5) is fixedly connected to a second motor (25), and the output shaft of the second motor (25) is fixedly connected to the worm (5).

Images