Circular movable block fixing clamp

Abstract

The utility model relates to the technical field of clamps, in particular to a circular movable block fixing clamp which comprises a base, a clamping table is fixedly connected to the surface of the base, a clamping mechanism is arranged on the surface of the base, the clamping mechanism comprises a first motor, the first motor is fixedly connected to the surface of the base, and a second motor is arranged on the surface of the base. A first lead screw is fixedly connected to an output shaft of the first motor, a round nut is in threaded connection to the surface of the first lead screw, and a first adjusting rod is rotationally connected to the surface of the round nut. The clamping mechanism is driven by a group of first motors, and a plurality of groups of sliding blocks drive a plurality of groups of first movable blocks to clamp and fix a circular workpiece through a plurality of groups of connecting rods by virtue of mutual matching of a circular nut, a first adjusting rod and the sliding blocks, so that the cost of a fixing clamp is greatly reduced; and the stability and the reliability of the fixing clamp are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a circular movable block fixing clamp. Background Art

[0002] A circular movable block fixing fixture is a device used to fix a circular workpiece, and usually uses multiple movable blocks to fix and clamp the circular workpiece.

[0003] The existing circular movable block fixing fixture uses multiple driving devices to drive the movable block to move when clamping a circular workpiece, which greatly increases the production cost of the fixing fixture and reduces the accessibility and stability of the fixing fixture. Utility Model Content

[0004] The purpose of the present utility model is to provide a circular movable block fixing fixture to solve the problem of the existing circular movable block fixing fixture proposed in the above background technology. When clamping a circular workpiece, multiple driving devices are used to drive the movable block to move, which greatly increases the production cost of the fixing fixture and reduces the accessibility and stability of the fixing fixture.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution, a circular movable block fixing clamp: comprising a base, a clamping platform fixedly connected to the surface of the base, a clamping mechanism provided on the surface of the base, the clamping mechanism comprising a first motor, the first motor fixedly connected to the surface of the base, a first screw rod fixedly connected to the output shaft of the first motor, a circular nut threadedly connected to the surface of the first screw rod, a first adjusting rod rotatably connected to the surface of the circular nut, a slider rotatably connected to the surface of the first adjusting rod, the slider being slidably connected to the surface of the clamping platform, a connecting rod fixedly connected to the surface of the slider, and the first movable block fixedly connected to the surface of the connecting rod.

[0006] Preferably, an adjustment mechanism is provided on the surface of the connecting rod, and the adjustment mechanism includes a guide rod, the guide rod is fixedly connected to the surface of the connecting rod, a movable rod is slidably connected to the surface of the guide rod, a second movable block is fixedly connected to the surface of the movable rod, a second motor is fixedly connected to the surface of the connecting rod, a second screw rod is fixedly connected to the output shaft of the second motor, a square nut is threadedly connected to the surface of the second screw rod, a second adjusting rod is rotatably connected to the surface of the square nut, and the end of the second adjusting rod away from the square nut is rotatably connected to the bottom of the movable rod.

[0007] Preferably, the first screw is rotated between the base and the clamping platform through the output shaft of the first motor, and multiple groups of first adjusting rods are provided, and the multiple groups of first adjusting rods are evenly distributed in a circular shape on the surface of the circular nut.

[0008] Preferably, a guide hole is provided on the surface of the clamping table, and the slider is in an "H" shape. The slider slides on the guide hole of the clamping table, and the first screw drives the circular nut to rise and fall by rotation. During the lifting process, the circular nut drives the slider to slide on the guide hole of the clamping table through the first adjusting rod.

[0009] Preferably, the first movable block is in contact with and connected to the surface of the base, and the connecting rod drives the first movable block to slide on the surface of the clamping table via the connecting rod.

[0010] Preferably, the second movable block slides on the surface of the guide rod through the movable rod, and the second movable block is located directly above the first movable block.

[0011] Preferably, the second screw rod is driven to rotate by the output shaft of the second motor, and the second screw rod drives the square nut to slide on the surface of the connecting rod through rotation. During the sliding process, the connecting rod drives the movable rod to slide and rise on the guide rod through the second adjusting rod.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The fixing fixture drives the first screw to rotate between the base and the clamping table through the output shaft of the first motor, and the first screw drives the circular nut to rise and fall on the first screw by rotating. During the lifting process, the first screw drives multiple groups of sliders to slide on the guide holes of the clamping table through multiple groups of first adjusting rods, and the multiple groups of sliders drive multiple groups of first movable blocks to slide on the surface of the clamping table through multiple groups of connecting rods, thereby completing the clamping and fixing of the circular workpiece. The clamping mechanism is driven by a group of first motors. The clamping mechanism is driven by a group of first motors, and through the mutual cooperation of the circular nut, the first adjusting rod and the slider, the multiple groups of sliders drive the multiple groups of first movable blocks through the multiple groups of connecting rods to clamp and fix the circular workpiece, which greatly reduces the cost of the fixing fixture and improves the stability and reliability of the fixing fixture.

[0014] 2. The fixing fixture drives the second screw to rotate through the output shaft of the second motor. The second screw drives the square nut to slide on the surface of the connecting rod through rotation. During the sliding process, the square nut drives the movable rod to slide and rise and fall on the surface of the guide rod through the second adjusting rod. The movable rod then drives the second movable block to rise and fall horizontally. By changing the horizontal height of the second movable block, the clamping height of the second movable block on the top of the circular workpiece is changed, so that when the fixing fixture faces circular workpieces of different heights, the first movable block and the second movable block can still ensure the clamping stability of the circular workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1This is a frontal perspective schematic diagram of the structure of the present utility model;

[0016] Figure 2 It is a schematic front view of the structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the present invention from the front and bottom perspectives;

[0018] Figure 4 For this utility model Figure 1 Schematic diagram of the enlarged structure at A in the middle;

[0019] Figure 5 It is a partial three-dimensional schematic diagram of the structure of the present invention from the front.

[0020] In the figure: 1. Base; 11. Clamping table; 2. First motor; 21. First screw rod; 22. Round nut; 23. First adjusting rod; 24. Slider; 25. Connecting rod; 26. First movable block; 3. Guide rod; 31. Movable rod; 32. Second movable block; 33. Second motor; 34. Second screw rod; 35. Square nut; 36. Second adjusting rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-5 , an embodiment provided by the utility model:

[0023] A circular movable block fixing fixture: includes a base 1, a clamping platform 11 is fixedly connected to the surface of the base 1, a clamping mechanism is provided on the surface of the base 1, the clamping mechanism includes a first motor 2, the first motor 2 is fixedly connected to the surface of the base 1, a first screw rod 21 is fixedly connected to the output shaft of the first motor 2, a circular nut 22 is threadedly connected to the surface of the first screw rod 21, a first adjusting rod 23 is rotatably connected to the surface of the circular nut 22, a slider 24 is rotatably connected to the surface of the first adjusting rod 23, the slider 24 is slidably connected to the surface of the clamping platform 11, a connecting rod 25 is fixedly connected to the surface of the slider 24, and a first movable block 26 is fixedly connected to the surface of the connecting rod 25. The clamping mechanism is driven by a group of first motors 2, and through the mutual cooperation of the circular nut 22, the first adjusting rod 23 and the slider 24, multiple groups of sliders 24 drive multiple groups of first movable blocks 26 through multiple groups of connecting rods 25 to clamp and fix the circular workpiece, which greatly reduces the cost of the fixing fixture and improves the stability and reliability of the fixing fixture.

[0024] Furthermore, an adjustment mechanism is provided on the surface of the connecting rod 25, which includes a guide rod 3, which is fixedly connected to the surface of the connecting rod 25, and a movable rod 31 is slidably connected to the surface of the guide rod 3, and a second movable block 32 is fixedly connected to the surface of the movable rod 31, and a second motor 33 is fixedly connected to the surface of the connecting rod 25, and a second screw rod 34 is fixedly connected to the output shaft of the second motor 33, and a square nut 35 is threadedly connected to the surface of the second screw rod 34, and a second adjusting rod 36 is rotatably connected to the surface of the square nut 35, and the end of the second adjusting rod 36 away from the square nut 35 is rotatably connected to the bottom of the movable rod 31, and the second movable block 32 clamps the circular workpiece at the top of the first movable block 26, and its adjustment mechanism can adjust the clamping height of the second movable block 32 to the top of the circular workpiece, so that when facing a higher circular workpiece, the circular workpiece can still be stably clamped.

[0025] Furthermore, the first screw rod 21 rotates between the base 1 and the clamping table 11 through the output shaft of the first motor 2. Multiple groups of first adjusting rods 23 are provided, and the multiple groups of first adjusting rods 23 are evenly distributed in a circular shape on the surface of the circular nut 22. The multiple groups of first adjusting rods 23 will rotate uniformly under the drive of the circular nut 22, thereby driving the multiple groups of sliders 24 to slide on the clamping table 11, and the two ends of the first adjusting rod 23 will rotate on the circular nut 22 and the slider 24 respectively.

[0026] Furthermore, a guide hole is opened on the surface of the clamping table 11, and the slider 24 is in an "H" shape. The slider 24 slides on the guide hole of the clamping table 11, and the first screw rod 21 drives the circular nut 22 to rise and fall by rotation. During the lifting process, the circular nut 22 drives the slider 24 to slide on the guide hole of the clamping table 11 through the first adjusting rod 23. The guide hole of the clamping table 11 limits the rotation of the slider 24, and the slider 24 limits the rotation of the circular nut 22 on the first screw rod 21 through the first adjusting rod 23, so that during the rotation of the first screw rod 21, the circular nut 22 can only be lifted and lowered vertically.

[0027] Furthermore, the first movable block 26 is in contact with and connected to the surface of the base 1, and the connecting rod 25 drives the first movable block 26 to slide on the surface of the clamping table 11 through the connecting rod 25. Multiple groups of second adjustment rods 36 will slide synchronously on the base 1, thereby completing the task of clamping and fixing the circular workpiece.

[0028] Furthermore, the second movable block 32 slides on the surface of the guide rod 3 through the movable rod 31. The second movable block 32 is located directly above the first movable block 26. The second movable block 32 will clamp the circular workpiece on the top of the first movable block 26, thereby improving the stability of clamping the circular workpiece. The heights of the circular workpieces are different, so the height of the second movable block 32 can be adjusted accordingly.

[0029] Furthermore, the second screw rod 34 is driven to rotate by the output shaft of the second motor 33, and the second screw rod 34 drives the square nut 35 to slide on the surface of the connecting rod 25 through rotation. During the sliding process, the connecting rod 25 drives the movable rod 31 to slide and rise on the guide rod 3 through the second adjusting rod 36. One end of the second adjusting rod 36 moves synchronously with the square nut 35, and both ends of the second adjusting rod 36 rotate on the movable rod 31 and the square nut 35 at the same time.

[0030] Working principle: The output shaft of the first motor 2 drives the first screw rod 21 to rotate between the base 1 and the clamping table 11, and the first screw rod 21 drives the circular nut 22 to rise and fall on the first screw rod 21 through rotation. During the lifting process, the first screw rod 21 drives multiple groups of sliders 24 to slide on the guide holes of the clamping table 11 through multiple groups of first adjusting rods 23, and multiple groups of sliders 24 drive multiple groups of first movable blocks 26 to slide on the surface of the clamping table 11 through multiple groups of connecting rods 25, thereby completing the clamping and fixation of the circular workpiece. The clamping mechanism is driven by a group of first motors 2. The clamping mechanism is driven by a group of first motors 2. Through the mutual cooperation of the circular nut 22, the first adjusting rod 23 and the slider 24, the multiple groups of sliders 24 drive the multiple groups of first movable blocks 26 through the multiple groups of connecting rods 25 to clamp and fix the circular workpiece, which greatly reduces the cost of the fixing fixture and improves the stability and reliability of the fixing fixture.

[0031] The second screw rod 34 is driven to rotate by the output shaft of the second motor 33, and the second screw rod 34 drives the square nut 35 to slide on the surface of the connecting rod 25 through rotation. During the sliding process, the square nut 35 drives the movable rod 31 to slide and rise and fall on the surface of the guide rod 3 through the second adjusting rod 36. The movable rod 31 then drives the second movable block 32 to rise and fall horizontally. By changing the horizontal height of the second movable block 32, the clamping height of the second movable block 32 to the top of the circular workpiece is changed, so that when the fixed fixture faces circular workpieces of different heights, the first movable block 26 and the second movable block 32 can still ensure the clamping stability of the circular workpiece.

[0032] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A circular movable block fixing fixture, characterized by: The invention comprises a base (1), a clamping platform (11) is fixedly connected to the surface of the base (1), a clamping mechanism is provided on the surface of the base (1), the clamping mechanism comprises a first motor (2), the first motor (2) is fixedly connected to the surface of the base (1), a first screw rod (21) is fixedly connected to the output shaft of the first motor (2), a circular nut (22) is threadedly connected to the surface of the first screw rod (21), a first adjusting rod (23) is rotatably connected to the surface of the circular nut (22), a slider (24) is rotatably connected to the surface of the first adjusting rod (23), the slider (24) is slidably connected to the surface of the clamping platform (11), a connecting rod (25) is fixedly connected to the surface of the slider (24), and a first movable block (26) is fixedly connected to the surface of the connecting rod (25).

2. The circular movable block fixing fixture according to claim 1, characterized in that: An adjustment mechanism is provided on the surface of the connecting rod (25), and the adjustment mechanism includes a guide rod (3), the guide rod (3) is fixedly connected to the surface of the connecting rod (25), a movable rod (31) is slidably connected to the surface of the guide rod (3), a second movable block (32) is fixedly connected to the surface of the movable rod (31), a second motor (33) is fixedly connected to the surface of the connecting rod (25), a second screw rod (34) is fixedly connected to the output shaft of the second motor (33), a square nut (35) is threadedly connected to the surface of the second screw rod (34), a second adjustment rod (36) is rotatably connected to the surface of the square nut (35), and the end of the second adjustment rod (36) away from the square nut (35) is rotatably connected to the bottom of the movable rod (31).

3. The circular movable block fixing fixture according to claim 1, characterized in that: The first screw rod (21) rotates between the base (1) and the clamping platform (11) through the output shaft of the first motor (2), and multiple groups of first adjustment rods (23) are provided, and the multiple groups of first adjustment rods (23) are evenly distributed in a circular shape on the surface of the circular nut (22).

4. The circular movable block fixing fixture according to claim 3, characterized in that: A guide hole is provided on the surface of the clamping platform (11), and the slider (24) is in an "H" shape. The slider (24) slides on the guide hole of the clamping platform (11). The first screw rod (21) drives the circular nut (22) to rise and fall by rotating. During the process of rising and falling, the circular nut (22) drives the slider (24) to slide on the guide hole of the clamping platform (11) through the first adjusting rod (23).

5. The circular movable block fixing fixture according to claim 4, characterized in that: The first movable block (26) is in contact with and connected to the surface of the base (1), and the connecting rod (25) drives the first movable block (26) to slide on the surface of the clamping platform (11) through the connecting rod (25).

6. The circular movable block fixing fixture according to claim 2, characterized in that: The second movable block (32) slides on the surface of the guide rod (3) through the movable rod (31), and the second movable block (32) is located directly above the first movable block (26).

7. The circular movable block fixing fixture according to claim 6, characterized in that: The second screw rod (34) is driven to rotate by the output shaft of the second motor (33). The second screw rod (34) drives the square nut (35) to slide on the surface of the connecting rod (25) through rotation. During the sliding process, the connecting rod (25) drives the movable rod (31) to slide and rise on the guide rod (3) through the second adjusting rod (36).

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