Combined clamp

Abstract

The utility model relates to the technical field of clamps, and discloses a combined clamp which comprises a shell, a limiting groove is formed in the shell, a motor is fixedly connected to one side of the outer wall of the shell, the output end of the motor is fixedly connected with a rotating shaft, one end of the rotating shaft is rotatably connected to the interior of the shell, and the other end of the rotating shaft is fixedly connected with a rotating shaft. And a straight gear is fixedly connected to the outer wall of the rotating shaft, clamping arms which are symmetrical left and right are slidably connected to the interior of the shell, the clamping arms are slidably connected to the inner wall of the limiting groove, rack plates are fixedly connected to one sides of the outer walls of the two clamping arms, and the rack plates are connected with the straight gear in an engaged mode. According to the clamping device, the rotating shaft is driven by the motor, so that the straight gear is meshed with the rack plate, and the clamping arm drives the second clamping block to be close to a workpiece; meanwhile, the rotating shaft drives the threaded sleeve to be meshed with the bevel gear II, so that the triangular sliding block is stable close to the workpiece; the rotating rods are matched, the clamp can be replaced to adapt to rectangular or circular workpieces, and the practicability of the clamp is improved.

Description

Technical Field

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

[0002] A fixture is a tool or device used to fix a workpiece for processing, testing or assembly. It is usually made of metal, plastic or other materials and designed into a specific shape to adapt to the shape and size of the workpiece. By clamping the workpiece, the fixture ensures that it remains in a stable position during the processing to ensure processing accuracy and improve production efficiency. A modular fixture is a fixture system composed of multiple fixtures to adapt to complex workpiece shapes or the needs of multiple processing procedures. Its main advantages include versatility, improved efficiency, accuracy and stability, space saving, and flexibility and scalability. This flexibility makes modular fixtures suitable for a variety of processes and workpiece types. At the same time, through reasonable design and arrangement, they can clamp multiple workpieces at the same time or complete multiple processing procedures in one system, thereby improving production efficiency and reducing time and cost. In summary, modular fixtures are widely used in the manufacturing industry, which can improve processing efficiency, ensure processing quality, save space, and have the advantages of flexibility and scalability.

[0003] The existing combination clamps are used to replace the corresponding clamps according to the size of the workpiece during use. When clamping workpieces of different shapes, the clamps need to be disassembled to make the clamps detach from the workbench surface, and then the next clamp is installed. However, the above operation is relatively cumbersome, which will greatly reduce the efficiency of the clamping operation and has poor practicality. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a combined clamp, aiming to improve the problem in the prior art that the clamps of different shapes need to be repeatedly replaced, resulting in reduced clamp working efficiency and poor practicality.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a combined clamp, comprising a shell, a limiting groove is provided inside the shell, a motor is fixedly connected to one side of the outer wall of the shell, a rotating shaft is fixedly connected to the output end of the motor, one end of the rotating shaft is rotatably connected to the inside of the shell, a spur gear is fixedly connected to the outer wall of the rotating shaft, a left-right symmetrical clamping arm is slidably connected to the inside of the shell, the clamping arm is slidably connected to the inner wall of the limiting groove, a rack plate is fixedly connected to one side of the outer wall of the two clamping arms, the rack plate is meshed with the spur gear, a bevel gear is fixedly connected to the outer wall of the rotating shaft, and the shell rotates inside. A threaded sleeve is connected, and a bevel gear 2 is fixedly connected to the lower surface of the threaded sleeve, and the bevel gear 2 is meshed with the bevel gear 1. A screw is threadedly connected to the inside of the threaded sleeve, and a connecting plate is rotatably connected to the upper surface of the screw, and a limiting rod is fixedly connected to the lower surface of the connecting plate, and the limiting rod is slidably connected to the inside of the shell, and an adjustment component is arranged inside the connecting plate, and a bracket is fixedly connected to the upper surface of the clamping arm, and a rotating rod is rotatably connected to the inside of the bracket, and an L-shaped block 2 is fixedly connected to the outer wall of the rotating rod, and a clamping block 1 is slidably connected to one side of the inside of the L-shaped block 2, and a left-right symmetrical clamping block 2 is slidably connected to the other side of the inside of the L-shaped block 2.

[0006] Furthermore, the adjustment assembly includes a rotating rod, which is rotatably connected to the inside of the connecting plate, and an L-shaped block is fixedly connected to the outer wall of the rotating rod. A rectangular slider is slidably connected to one side of the L-shaped block, and a left-right symmetrical triangular slider is slidably connected to the other side of the L-shaped block.

[0007] Furthermore, a sliding groove is formed inside the clamping arm, a sliding rod is slidably connected inside the clamping arm, and the sliding rod is slidably connected to the inner wall of the sliding groove.

[0008] Furthermore, a left-right symmetrical guide block is fixedly connected to the inner wall of the shell, and a guide groove is provided inside the guide block.

[0009] Furthermore, a roller is rotatably connected to the outer wall of the sliding rod, and the roller is slidably connected to the inner wall of the guide groove.

[0010] Furthermore, the outer wall of the sliding rod is fixedly connected to a support rod, and the upper surface of the support rod is slidably connected to a U-shaped frame.

[0011] Furthermore, the outer wall of the support rod is slidably connected to the inside of the shell, and a sliding groove is provided inside the U-shaped frame.

[0012] Furthermore, the support rod is slidably connected to the inner wall of the slide groove, and the shell is slidably connected to the bracket.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, the motor is started to drive the rotating shaft to rotate, so that the spur gear and the rack plate are meshed and rotated, so that the clamping arm moves to drive the clamping block 2 to clamp the workpiece, and the rotating shaft rotates while driving the threaded sleeve and the bevel gear 2 to mesh and rotate, so that the triangular slider is closer to the workpiece and more stable. Through the cooperation of the rotating rod and the rotating rod, the effect of replacing the fixture according to the rectangular or circular workpiece can be achieved, thereby improving the practicality of the fixture.

[0015] 2. In the utility model, when the rack plate slides outward, it drives the sliding rod inside the clamping arm to move, and the sliding rod drives the roller to move along the guide groove to limit the movement. The movement of the roller drives the support rod to slide on the inner wall of the slide groove to limit the movement, thereby promoting the U-shaped frame to automatically lift the workpiece, thereby improving the practicality of the clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural schematic diagram of a combined clamp proposed by the utility model;

[0017] Figure 2 A cross-sectional schematic diagram of a combined clamp proposed by the utility model;

[0018] Figure 3 This is a schematic diagram of the disassembly of a rectangular slider of a combined clamp proposed by the utility model;

[0019] Figure 4 The utility model is a schematic diagram of a rectangular slide structure of a combined clamp.

[0020] Legend:

[0021] 1. Housing; 2. Limiting groove; 3. Motor; 4. Rotating shaft; 5. Spur gear; 6. Clamping arm; 7. Rack plate; 8. Bevel gear one; 9. Threaded sleeve; 10. Bevel gear two; 11. Screw rod; 12. Connecting plate; 13. Limiting rod; 14. Adjusting assembly; 1401. Rotating rod; 1402. L-shaped block one; 1403. Rectangular slider; 1404. Triangular slider; 15. Sliding groove; 16. Sliding rod; 17. Guide block; 18. Guide groove; 19. Roller; 20. Support rod; 21. U-shaped frame; 22. Sliding groove; 23. Bracket; 24. Rotating rod; 25. L-shaped block two; 26. Clamping block one; 27. Clamping block two. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Reference Figure 1 , Figure 2 and Figure 3 , an embodiment of the utility model: a combined clamp comprises a shell 1, a limiting groove 2 is provided inside the shell 1, a motor 3 is fixedly connected to one side of the outer wall of the shell 1, a rotating shaft 4 is fixedly connected to the output end of the motor 3, one end of the rotating shaft 4 is rotatably connected to the inside of the shell 1, a spur gear 5 is fixedly connected to the outer wall of the rotating shaft 4, a left-right symmetrical clamping arm 6 is slidably connected to the inside of the shell 1, the clamping arm 6 is slidably connected to the inner wall of the limiting groove 2, one side of the outer wall of the two clamping arms 6 is fixedly connected to a rack plate 7, the rack plate 7 is meshed with the spur gear 5, a bevel gear 1 8 is fixedly connected to the outer wall of the rotating shaft 4, a threaded sleeve 9 is rotatably connected to the inside of the shell 1, a bevel gear 2 10 is fixedly connected to the lower surface of the threaded sleeve 9, the bevel gear 2 10 is meshed with the bevel gear 1 8, a screw rod 11 is threadedly connected to the inside of the threaded sleeve 9, and the upper surface of the screw rod 11 is rotatably connected to A connecting plate 12, a limit rod 13 is fixedly connected to the lower surface of the connecting plate 12, the limit rod 13 is slidably connected to the inside of the shell 1, an adjusting assembly 14 is arranged inside the connecting plate 12, a bracket 23 is fixedly connected to the upper surface of the clamping arm 6, a rotating rod 24 is rotatably connected inside the bracket 23, an L-shaped block 25 is fixedly connected to the outer wall of the rotating rod 24, a clamping block 1 26 is slidably connected to one side of the L-shaped block 25, and a left-right symmetrical clamping block 27 is slidably connected to the other side of the L-shaped block 25; the adjusting assembly 14 includes a rotating rod 1401, the rotating rod 1401 is rotatably connected to the inside of the connecting plate 12, an L-shaped block 1 1402 is fixedly connected to the outer wall of the rotating rod 1401, a rectangular slider 1403 is slidably connected to one side of the L-shaped block 1402, and a left-right symmetrical triangular slider 1404 is slidably connected to the other side of the L-shaped block 1402;

[0024] Specifically, first, the start-up of the motor 3 drives the rotating shaft 4 to rotate; the movement of the rotating shaft 4 causes the spur gear 5 to start rotating; the spur gear 5 meshes with the rack plate 7, and the rack on the rack plate 7 meshes with the gear of the spur gear 5, generating linear motion; this motion is transmitted to the clamping arm 6, causing the clamping arm 6 to slide on the inner wall of the limit groove 2; the limit groove 2 plays a guiding and limiting role, ensuring that the movement trajectory of the clamping arm 6 is accurate; with the movement of the clamping arm 6, the bracket 23 also slides on the upper surface of the shell 1; the shell 1 is the overall outer shell of the equipment, which plays a role in protecting the internal mechanism; the sliding of the bracket 23 causes the clamping block 27 to gradually approach the outside of the workpiece; the design of the clamping block 27 is convenient for using the size of a circular workpiece, which can effectively clamp the workpiece to prevent it from shifting during the processing process; at the same time, the rotating shaft The rotation of 4 also drives the bevel gear 1 8 to mesh and rotate with the bevel gear 2 10; this meshing not only provides the rotational power of the rotating shaft 4, but also realizes the lifting and lowering movement of the connecting plate 12; the movement of the connecting plate 12 causes the triangular slider 1404 to contact the bottom of the workpiece, further stabilizing the position of the workpiece and ensuring the accuracy and quality of the processing; in the process of clamping the workpiece, if it is necessary to adjust the position of the workpiece or replace a workpiece of a different shape, it can be achieved by rotating the rotating rod 24; the rotation of the rotating rod 24 causes the L-shaped block 25 to rotate, and then drives the clamping block 1 26 to rotate, achieving the effect of clamping the rectangular workpiece; at the same time, rotating the rotating rod 1401 can drive the L-shaped block 1402 to rotate, so that the rectangular slider 1403 rotates, so that it can be replaced in conjunction with the clamping block 1 26 to achieve the effect of clamping different rectangular workpieces.

[0025] Reference Figure 2 , Figure 3 and Figure 4 A sliding groove 15 is provided inside the clamping arm 6, and a sliding rod 16 is slidably connected inside the clamping arm 6, and the sliding rod 16 is slidably connected to the inner wall of the sliding groove 15; a left-right symmetrical guide block 17 is fixedly connected to the inner wall of the shell 1, and a guide groove 18 is provided inside the guide block 17; a roller 19 is rotatably connected to the outer wall of the sliding rod 16, and the roller 19 is slidably connected to the inner wall of the guide groove 18; a support rod 20 is fixedly connected to the outer wall of the sliding rod 16, and a U-shaped frame 21 is slidably connected to the upper surface of the support rod 20; the outer wall of the support rod 20 is slidably connected to the inside of the shell 1, and a sliding groove 22 is provided inside the U-shaped frame 21; the support rod 20 is slidably connected to the inner wall of the sliding groove 22, and the shell 1 is slidably connected to the bracket 23;

[0026] Specifically, first, the power source transmits power through the rotating shaft 4, and the rotating shaft 4 is connected to the spur gear 5; when the rotating shaft 4 rotates in the opposite direction, the spur gear 5 engages with the rack plate 7, and the rack plate 7 starts to move accordingly; as the rack plate 7 moves, it will push the clamping arm 6 to move outward; the movement of the clamping arm 6 is the key to the entire mechanism to achieve workpiece grasping and release. The movement of the clamping arm 6 can drive the sliding rod 16 to slide in a limited position on the inner wall of the sliding groove 15; the sliding rod 16 is a key component, and its movement can be precisely controlled, thereby driving the roller 19 to slide on the inner wall of the guide groove 18; the design of the roller 19 takes into account the sliding of the support rod 20 inside the shell 1, so that the support rod 20 can slide in a limited position on the inner wall of the slide groove 22; in addition, when the roller 19 rises, the support rod 20 will also be lifted; this action is achieved through the U-shaped frame 21 inside the mechanism; the U-shaped frame 21 is designed to be pushed by the roller 19, and when the roller 19 rises, the U-shaped frame 21 will also move accordingly, thereby lifting the workpiece from above the triangular slider 1404; this process realizes the rapid lifting of the workpiece, greatly improving work efficiency.

[0027] Working principle: When a clamp is needed to clamp a workpiece, the workpiece is placed directly above the housing 1, and the motor 3 is started at this time. The motor 3 drives the rotating shaft 4 to rotate, and the rotating shaft 4 drives the spur gear 5 so that the spur gear 5 and the rack plate 7 mesh and rotate, so that the clamping arm 6 slides within the inner wall of the limit groove 2, and the bracket 23 is driven to slide on the upper surface of the housing 1 by the clamping arm 6, so that the clamping block 27 is close to the outside of the workpiece. By sliding the clamping block 27, the size of the circular workpiece can be used. The rotating shaft 4 rotates while driving the bevel gear 1 8 meshes and rotates with the bevel gear 2 10, thereby driving the connecting plate 12 to rise and fall to make the triangular slider 1404 contact the bottom of the workpiece, thereby further stabilizing the workpiece. When it is necessary to rotate the rotating rod 24 to make the L-shaped block 25 rotate, the clamping block 1 26 is driven to rotate by the L-shaped block 25, thereby achieving the effect of clamping the rectangular workpiece. At the same time, the rotating rod 1401 can drive the L-shaped block 1 1402 to rotate, so that the rectangular slider 1403 rotates, thereby achieving the effect of clamping the rectangular workpiece by replacing the clamping block 1 26;

[0028] Secondly, when the workpiece is clamped, the spur gear 5 is driven to mesh with the rack plate 7 by rotating the rotating shaft 4 in the opposite direction, thereby driving the rack plate 7 to push the clamping arm 6 to move outward. Through the movement of the clamping arm 6, it is easy to drive the sliding rod 16 to slide on the inner wall of the sliding groove 15 to limit the position. The movement of the sliding rod 16 drives the roller 19 to slide on the inner wall of the guide groove 18. The roller 19 drives the outer wall support rod 20 of the sliding rod 16 to slide inside the shell 1, thereby achieving the effect of driving the support rod 20 to slide inside the shell 1 while limiting the position sliding on the inner wall of the slide groove 22. The rise of the roller 19 realizes the effect of driving the support rod 20 to lift the U-shaped frame 21. At this time, the U-shaped frame 21 pushes the workpiece out of the triangular slider 1404, thereby achieving the effect of quickly lifting the workpiece.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A combined clamp, comprising a housing (1), characterized in that: A limiting groove (2) is provided inside the housing (1); a motor (3) is fixedly connected to one side of the outer wall of the housing (1); a rotating shaft (4) is fixedly connected to the output end of the motor (3); one end of the rotating shaft (4) is rotatably connected to the inside of the housing (1); a spur gear (5) is fixedly connected to the outer wall of the rotating shaft (4); a left-right symmetrical clamping arm (6) is slidably connected to the inside of the housing (1); the clamping arm (6) is slidably connected to the inner wall of the limiting groove (2); a rack plate (7) is fixedly connected to one side of the outer wall of the two clamping arms (6); the rack plate (7) is meshed with the spur gear (5); a bevel gear 1 (8) is fixedly connected to the outer wall of the rotating shaft (4); a threaded sleeve (9) is rotatably connected to the inside of the housing (1); a bevel gear 2 (10) is fixedly connected to the lower surface of the threaded sleeve (9). ), the bevel gear 2 (10) is meshedly connected with the bevel gear 1 (8), the threaded sleeve (9) is internally threadedly connected with a screw rod (11), the upper surface of the screw rod (11) is rotatably connected with a connecting plate (12), the lower surface of the connecting plate (12) is fixedly connected with a limit rod (13), the limit rod (13) is slidably connected to the inside of the housing (1), an adjustment component (14) is arranged inside the connecting plate (12), the upper surface of the clamping arm (6) is fixedly connected with a bracket (23), the bracket (23) is internally rotatably connected with a rotating rod (24), the outer wall of the rotating rod (24) is fixedly connected with an L-shaped block 2 (25), one side of the inside of the L-shaped block 2 (25) is slidably connected with a clamping block 1 (26), and the other side of the inside of the L-shaped block 2 (25) is slidably connected with a left-right symmetrical clamping block 2 (27).

2. A combined clamp according to claim 1, characterized in that: The adjustment assembly (14) comprises a rotating rod (1401), the rotating rod (1401) being rotatably connected to the inside of the connecting plate (12), the outer wall of the rotating rod (1401) being fixedly connected to an L-shaped block 1 (1402), a rectangular slider (1403) being slidably connected to one side of the inside of the L-shaped block 1 (1402), and a left-right symmetrical triangular slider (1404) being slidably connected to the other side of the inside of the L-shaped block 1 (1402).

3. A combined clamp according to claim 2, characterized in that: A sliding groove (15) is provided inside the clamping arm (6), a sliding rod (16) is slidably connected inside the clamping arm (6), and the sliding rod (16) is slidably connected to the inner wall of the sliding groove (15).

4. A combined clamp according to claim 3, characterized in that: A left-right symmetrical guide block (17) is fixedly connected to the inner wall of the housing (1), and a guide groove (18) is provided inside the guide block (17).

5. A combined clamp according to claim 4, characterized in that: The outer wall of the sliding rod (16) is rotatably connected to a roller (19), and the roller (19) is slidably connected to the inner wall of the guide groove (18).

6. A combined clamp according to claim 5, characterized in that: The outer wall of the sliding rod (16) is fixedly connected to a support rod (20), and the upper surface of the support rod (20) is slidably connected to a U-shaped frame (21).

7. A combined clamp according to claim 6, characterized in that: The outer wall of the support rod (20) is slidably connected to the inside of the housing (1), and a sliding groove (22) is provided inside the U-shaped frame (21).

8. A combined clamp according to claim 7, characterized in that: The support rod (20) is slidably connected to the inner wall of the slide groove (22), and the housing (1) is slidably connected to the bracket (23).

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