Adjustable clamp

Abstract

The utility model provides an adjustable clamp, relates to clamp technical field, the adjustable clamp comprises a groove base and two mounting blocks, the inner wall of the groove base is provided with an adjusting device, an auxiliary device is arranged between the bottom of the groove base and the mounting blocks, the adjusting device comprises a threaded rod, and the threaded rod is provided with a threaded hole. Threads at the two ends of the threaded rod are in opposite directions, one end of the threaded rod is connected with the inner wall of the groove base in a penetrating mode, the inner wall of the groove base is symmetrically connected with screw hole groove blocks in a sliding mode, and the inner walls of the two screw hole groove blocks are in threaded connection with the outer surfaces of the two ends of the threaded rod correspondingly. The adjusting device is arranged, the screw hole groove block can be adjusted, a plurality of limiting clamping blocks rotate to extrude and limit the screw hole groove block, circular workpieces with different diameters can be clamped, and the clamping device is convenient to use, high in practicability and high in practicability. The stability and the use flexibility of the clamp are improved.

Description

Technical Field

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

[0002] The fixture is an indispensable and important tool in the mechanical manufacturing process. It is mainly used to fix the processing object and ensure that it occupies the correct position for construction or inspection.

[0003] When using a clamp to clamp and fix a circular workpiece, most of the time, arc-shaped jaws are used for clamping. The opening curvature of the arc-shaped jaws is fixed. When encountering circular workpieces of different diameters, the clamping effect of the clamp is relatively poor, and it cannot be adjusted according to the diameter of the workpiece, which reduces the stability and flexibility of the clamping. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and provides an adjustable clamp.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an adjustable clamp, comprising a groove base and two mounting blocks, the inner wall of the groove base is provided with an adjusting device, and an auxiliary device is provided between the bottom of the groove base and the mounting block, the adjusting device comprises a threaded rod, the threads at both ends of the threaded rod are in opposite directions, one end of the threaded rod is connected to the inner wall of the groove base through a penetration, the inner wall of the groove base is symmetrically and slidably connected with a screw hole groove block, the inner walls of the two screw hole groove blocks are respectively threadedly connected to the outer surfaces of the two ends of the threaded rod, a plurality of first telescopic rods are fixedly connected to the inner wall of the screw hole groove block, one end of the first telescopic rod is fixedly connected to a rectangular block, the outer surface of the first telescopic rod is sleeved and connected with a first spring, the two ends of the first spring are respectively fixedly connected to one side of the screw hole groove block and one side of the rectangular block, and the outer surface of the rectangular block is rotatably connected to a limited clamping block.

[0006] The effect achieved by the above components is as follows: by setting the adjusting device, when the clamp is used to clamp and fix the circular workpiece, the circular workpiece can be placed on the top position of the groove base between the two screw hole groove blocks, and then the threaded rod is manually rotated to a certain position in the inner wall of the groove base, and the two screw hole groove blocks are driven to slide in the inner wall of the groove base in opposite directions, so that several limiting clamps on one side are attached to the outer surface of the circular workpiece, and the limiting clamp will rotate on the rectangular block according to the surface shape of the circular workpiece, so that one side of it is more in line with the surface of the workpiece, and then the first telescopic rod and the first spring will be squeezed to shrink to a certain position until the largest part of the circular workpiece abuts on one side of the screw hole groove block to limit and fix it, and the other several limiting clamps will fit the surface of the circular workpiece to limit it in the inner walls of the two screw hole groove blocks, so that it is clamped more firmly, and by adjusting it, circular workpieces of different diameters can be clamped, thereby improving the stability and flexibility of the clamp.

[0007] Preferably, a plurality of anti-slip strips are fixedly connected to one side of the limiting clamp block, and the plurality of anti-slip strips are made of rubber material.

[0008] The effect achieved by the above components is: by providing the anti-slip strip, the contact friction force on the surface of the limit clamp block can be increased, making it more firm and stable when clamping and fixing the circular workpiece.

[0009] Preferably, one end of the threaded rod is fixedly connected to a bearing, and an outer ring of the bearing is fixedly connected to one side of the inner wall of the groove base.

[0010] The effect achieved by the above components is: by setting the bearing, one end of the threaded rod can be limited in the inner wall of the groove base, and the contact wear between the two can be reduced, thereby improving the service life and stability of the threaded rod.

[0011] Preferably, one end of the threaded rod is fixedly connected to a screw block, and the screw block is arranged on an end of the threaded rod away from the bearing.

[0012] The effect achieved by the above components is that by providing the twist block, the contact area of ​​one end of the threaded rod can be increased, making it easier to manually hold and twist it.

[0013] Preferably, the auxiliary device includes a rotating base, an outer surface of the rotating base is fixedly connected to one side of the mounting block, one end of the rotating base is rotatably connected to one side of the groove base, one side of the rotating base is provided with a plurality of slots, both sides of the groove base are provided with slide slots, the inner wall of the slide slot is fixedly connected with a second spring, one end of the second spring is fixedly connected with a block, one end of the block is slidably connected to the inner wall of the slide slot, and one end of the block is inserted in the inner wall of the slot.

[0014] The effect achieved by the above-mentioned components is: by setting up an auxiliary device, when the clamp is installed on other equipment for coordinated use, the mounting block can be installed on the equipment according to actual installation and use requirements, so that the rotating base is fixed on the equipment, and then, according to needs, the card block is first pulled upward in the inner wall of the slide groove to drive the second spring to contract, and then the groove base is rotated to a certain angle on the rotating base, and then the card block is released. Under the resetting action of the second spring, one end of the card block can be driven to be stuck in the corresponding card slot, and the rotated groove base is limited, so that it can be used in conjunction with different equipment to improve the adaptability of the clamp.

[0015] Preferably, the inner wall cross section of the slide groove is in a T-shape, and the cross section of one end of the clamping block is in a T-shape.

[0016] The effect achieved by the above components is that by setting the slide groove and one end of the block into a T shape, the block is not prone to shaking when sliding up and down in the inner wall of the slide groove.

[0017] Preferably, a pull block is fixedly connected to one side of the clamping block, and the cross section of the pull block is annular.

[0018] The effect achieved by the above components is that by providing the pulling block, the contact area on one side of the card block can be increased, making it easier to manually pull the card block.

[0019] Preferably, a second telescopic rod is fixedly connected to one side of the inner wall of the slide groove, one end of the second telescopic rod is fixedly connected to one side of the clamping block, and the outer surface of the second telescopic rod is sleeved and connected to the inner wall of the second spring.

[0020] The effect achieved by the above components is that by providing the second telescopic rod, the inner wall of the second spring can be supported and reinforced, making it less likely to be damaged during use, thereby increasing the service life of the second spring.

[0021] Compared with the prior art, the advantages and positive effects of the utility model are:

[0022] In the utility model, by providing an adjustment device, the screw hole groove block can be adjusted and a plurality of limit clamp blocks can be rotated to squeeze and limit the screw hole groove block, so that circular workpieces with different diameters can be clamped, thereby improving the stability and flexibility of the clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0024] Figure 2 It is a three-dimensional structural schematic diagram of the threaded rod of the utility model;

[0025] Figure 3 for Figure 2 A three-dimensional schematic diagram of the structure of the middle part;

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the groove base of the utility model;

[0027] Figure 5 for Figure 4 Enlarged structural diagram at A in the middle.

[0028] Legend: 1. Groove base; 2. Adjustment device; 3. Auxiliary device; 4. Mounting block; 21. Threaded rod; 22. Screw hole groove block; 23. First telescopic rod; 24. Rectangular block; 25. Limit clamp block; 26. First spring; 27. Anti-slip strip; 28. Bearing; 29. ​​Twist block; 31. Rotating base; 32. Slot; 33. Slide slot; 34. Second spring; 35. Block; 36. Pull block; 37. Second telescopic rod. DETAILED DESCRIPTION

[0029] Embodiment 1, as Figure 1-5As shown, an adjustable clamp includes a groove base 1 and two mounting blocks 4, an adjusting device 2 is provided on the inner wall of the groove base 1, an auxiliary device 3 is provided between the bottom of the groove base 1 and the mounting block 4, the adjusting device 2 includes a threaded rod 21, threads at both ends of the threaded rod 21 are in opposite directions, one end of the threaded rod 21 is connected to the inner wall of the groove base 1 through a penetration, the inner wall of the groove base 1 is symmetrically and slidably connected with a screw hole groove block 22, the inner walls of the two screw hole groove blocks 22 are respectively threadedly connected to the outer surfaces of both ends of the threaded rod 21, a plurality of first telescopic rods 23 are fixedly connected to the inner wall of the screw hole groove block 22, one end of the first telescopic rod 23 is fixedly connected to a rectangular block 24, the outer surface of the first telescopic rod 23 is sleeved with a first spring 26, the two ends of the first spring 26 are respectively fixedly connected to one side of the screw hole groove block 22 and one side of the rectangular block 24, and the outer surface of the rectangular block 24 is rotatably connected to a limited clamp block 25. When the clamp is used to clamp and fix the circular workpiece, the circular workpiece can be placed on the top position of the groove base 1 between the two screw hole groove blocks 22, and then the threaded rod 21 is manually rotated to a certain position in the inner wall of the groove base 1, and then the two screw hole groove blocks 22 are driven to slide in the inner wall of the groove base 1 in opposite directions, so that several limiting clamps 25 on one side are attached to the outer surface of the circular workpiece, and the limiting clamp 25 will rotate on the rectangular block 24 according to the surface shape of the circular workpiece, so that one side of it is more in line with the surface of the workpiece, and then the first telescopic rod 23 and the first spring 26 will be squeezed to shrink to a certain position until the largest part of the circular workpiece abuts on one side of the screw hole groove block 22, and it is limited and fixed, and the other several limiting clamps 25 will fit the surface of the circular workpiece to limit it in the inner walls of the two screw hole groove blocks 22, and clamp it more firmly. By adjusting it, circular workpieces of different diameters can be clamped, thereby improving the stability and flexibility of the clamp.

[0030] Reference Figure 2 and Figure 3 As shown, this embodiment discloses that one side of the limiting clamp 25 is fixedly connected with a plurality of anti-slip strips 27, and the plurality of anti-slip strips 27 are made of rubber. By providing the anti-slip strips 27, the contact friction force on the surface of the limiting clamp 25 can be increased, making it more firm and stable when clamping and fixing the circular workpiece. One end of the threaded rod 21 is fixedly connected with a bearing 28, and the outer ring of the bearing 28 is fixedly connected to one side of the inner wall of the groove base 1. By providing the bearing 28, one end of the threaded rod 21 can be limited in the inner wall of the groove base 1, and the contact wear between the two can be reduced, thereby improving the service life and stability of the threaded rod 21.

[0031] Reference Figure 2 and Figure 3As shown, this embodiment discloses that one end of the threaded rod 21 is fixedly connected to a screw block 29, and the screw block 29 is arranged on the end of the threaded rod 21 away from the bearing 28. By providing the screw block 29, the contact area of ​​one end of the threaded rod 21 can be increased, making it convenient to manually hold and screw it.

[0032] Reference Figure 4 and Figure 5 As shown, this embodiment discloses that the auxiliary device 3 includes a rotating base 31, the outer surface of the rotating base 31 is fixedly connected to one side of the mounting block 4, one end of the rotating base 31 is rotatably connected to one side of the groove base 1, one side of the rotating base 31 is provided with a plurality of slots 32, both sides of the groove base 1 are provided with slide slots 33, the inner wall of the slide slot 33 is fixedly connected with a second spring 34, one end of the second spring 34 is fixedly connected with a block 35, one end of the block 35 is slidably connected to the inner wall of the slide slot 33, and one end of the block 35 is inserted in the inner wall of the slot 32. When the clamp is installed on other equipment for use, the mounting block 4 can be installed on the equipment according to actual installation and use requirements, so that the rotating base 31 is fixed on the equipment. Then, according to needs, the clamping block 35 is first pulled upward in the inner wall of the slide groove 33 to drive the second spring 34 to contract. Then, after the groove base 1 is rotated to a certain angle on the rotating base 31, the clamping block 35 is released. Under the resetting action of the second spring 34, one end of the clamping block 35 can be driven to be stuck in the corresponding clamping groove 32, and the rotated groove base 1 is limited. It can be used in conjunction with different equipment to improve the adaptability of the clamp.

[0033] Reference Figure 4 and Figure 5 As shown, this embodiment discloses that the inner wall cross section of the slide 33 is in a T-shape, and the cross section of one end of the block 35 is in a T-shape. By setting the slide 33 and one end of the block 35 in a T-shape, the block 35 is not easy to shake when sliding up and down in the inner wall of the slide 33. A pull block 36 is fixedly connected to one side of the block 35, and the cross section of the pull block 36 is annular. By setting the pull block 36, the contact area of ​​one side of the block 35 can be increased, and the block 35 can be pulled manually. A second telescopic rod 37 is fixedly connected to one side of the inner wall of the slide 33, one end of the second telescopic rod 37 is fixedly connected to one side of the block 35, and the outer surface of the second telescopic rod 37 is sleeved and connected to the inner wall of the second spring 34. By setting the second telescopic rod 37, the inner wall of the second spring 34 can be supported and reinforced, so that it is not easy to be damaged during use, and the service life of the second spring 34 is increased.

[0034] Working principle: when the clamp is used to clamp and fix the circular workpiece, the circular workpiece can be placed on the top position of the groove base 1 between the two screw hole groove blocks 22, and then the screw block 29 is manually held to rotate the threaded rod 21 to a certain position in the inner wall of the groove base 1, and then the two screw hole groove blocks 22 are driven to slide in the inner wall of the groove base 1 in opposite directions, so that several limiting clamps 25 on one side are attached to the outer surface of the circular workpiece, and the limiting clamp 25 will rotate on the rectangular block 24 according to the surface shape of the circular workpiece, so that one side of it is more in line with the surface of the workpiece, and then the first telescopic rod 23 and the first spring 26 will be squeezed to shrink to a certain position until the largest part of the circular workpiece abuts on one side of the screw hole groove block 22, and it is limited and fixed, and the other several limiting clamps 25 will fit the surface of the circular workpiece to limit it in the inner walls of the two screw hole groove blocks 22, and clamp it more firmly. By adjusting it, circular workpieces of different diameters can be clamped, thereby improving the stability and flexibility of the clamp.

[0035] When the clamp is installed on other equipment for use, the mounting block 4 can be installed on the equipment according to actual installation and use requirements, so that the rotating base 31 is fixed on the equipment. Then, according to needs, the clamping block 35 is first pulled upward in the inner wall of the slide groove 33 to drive the second spring 34 to contract. Then, after the groove base 1 is rotated to a certain angle on the rotating base 31, the clamping block 35 is released. Under the resetting action of the second spring 34, one end of the clamping block 35 can be driven to be stuck in the corresponding clamping groove 32, and the rotated groove base 1 is limited. It can be used in conjunction with different equipment to improve the adaptability of the clamp.

Claims

1. An adjustable clamp, comprising a groove base (1) and two mounting blocks (4), characterized in that: The inner wall of the groove base (1) is provided with an adjustment device (2), an auxiliary device (3) is provided between the bottom of the groove base (1) and the mounting block (4), the adjustment device (2) comprises a threaded rod (21), the threads at both ends of the threaded rod (21) are in opposite directions, one end of the threaded rod (21) is connected to the inner wall of the groove base (1), the inner wall of the groove base (1) is symmetrically slidably connected with screw hole groove blocks (22), the inner walls of the two screw hole groove blocks (22) are respectively connected to the threaded rod The outer surfaces of both ends of the screw hole groove block (21) are threadedly connected, the inner wall of the screw hole groove block (22) is fixedly connected with a plurality of first telescopic rods (23), one end of the first telescopic rod (23) is fixedly connected with a rectangular block (24), the outer surface of the first telescopic rod (23) is sleeved with a first spring (26), the two ends of the first spring (26) are respectively fixedly connected with one side of the screw hole groove block (22) and one side of the rectangular block (24), and the outer surface of the rectangular block (24) is rotatably connected with a limit clamp (25).

2. An adjustable clamp according to claim 1, characterized in that: A plurality of anti-slip strips (27) are fixedly connected to one side of the limiting clamp block (25), and the plurality of anti-slip strips (27) are made of rubber material.

3. An adjustable clamp according to claim 1, characterized in that: One end of the threaded rod (21) is fixedly connected to a bearing (28), and the outer ring of the bearing (28) is fixedly connected to one side of the inner wall of the groove base (1).

4. An adjustable clamp according to claim 3, characterized in that: One end of the threaded rod (21) is fixedly connected to a screw block (29), and the screw block (29) is arranged on an end of the threaded rod (21) away from the bearing (28).

5. The adjustable clamp according to claim 1, characterized in that: The auxiliary device (3) comprises a rotating base (31), the outer surface of the rotating base (31) is fixedly connected to one side of the mounting block (4), one end of the rotating base (31) is rotatably connected to one side of the groove base (1), one side of the rotating base (31) is provided with a plurality of slots (32), both sides of the groove base (1) are provided with slide slots (33), the inner wall of the slide slot (33) is fixedly connected with a second spring (34), one end of the second spring (34) is fixedly connected with a block (35), one end of the block (35) is slidably connected to the inner wall of the slide slot (33), and one end of the block (35) is inserted into the inner wall of the slot (32).

6. An adjustable clamp according to claim 5, characterized in that: The inner wall cross section of the slide groove (33) is in a T-shape, and the cross section of one end of the clamping block (35) is in a T-shape.

7. An adjustable clamp according to claim 5, characterized in that: A pull block (36) is fixedly connected to one side of the clamping block (35), and the cross section of the pull block (36) is in the shape of a circular ring.

8. An adjustable clamp according to claim 5, characterized in that: A second telescopic rod (37) is fixedly connected to one side of the inner wall of the slide groove (33), one end of the second telescopic rod (37) is fixedly connected to one side of the clamping block (35), and the outer surface of the second telescopic rod (37) is sleeved and connected to the inner wall of the second spring (34).

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