Multi-angle clamp for impact resistance experiment

Abstract

The utility model relates to the technical field of impact resistance experiments, in particular to a multi-angle clamp for an impact resistance experiment, which is used for clamping a workpiece and comprises a support table, a plurality of groups of clamping devices are arranged on the support table, each clamping device comprises a first clamp and a second clamp, the second clamp is arranged on the first clamp through a lifting mechanism, and the first clamp and the second clamp are arranged on the support table. The lifting mechanism adjusts the height of the second clamp relative to the first clamp, the first clamp clamps the lower portion of a workpiece, and the second clamp clamps the upper portion of the workpiece. The clamping device is suitable for to-be-detected materials with different heights, clamping is stable, and the materials are not prone to falling off.

Description

TECHNICAL FIELD

[0001] The utility model relates to impact resistance experiment technical field, concretely relates to a multi-angle clamp for impact resistance experiment. BACKGROUND

[0002] Impact resistance experiment is a common experimental method for testing the impact resistance of materials or objects under external force. By conducting impact experiments on materials or objects, their durability and safety performance in various application scenarios can be evaluated. However, existing multi-angle clamps for impact resistance experiments have fixed clamping heights, which can cause the materials to fall off after several impacts when the volume of the materials is high. This is inconvenient. SUMMARY

[0003] The utility model discloses to solve the problem of fixed clamping height and easy material falling off during use of the existing clamp for impact resistance experiment, and provides a multi-angle clamp for impact resistance experiment, which is suitable for different height of material to be tested and stable clamping without easy falling off.

[0004] To achieve the above purpose, the technical scheme of the utility model is as follows:

[0005] A multi-angle clamp for impact resistance experiment is used to clamp workpieces, which includes a support table. A plurality of clamping devices are arranged on the support table. The clamping device includes a first clamp and a second clamp. The second clamp is arranged on the first clamp through a lifting mechanism. The lifting mechanism adjusts the height of the second clamp relative to the first clamp. The first clamp clamps the lower part of the workpiece, and the second clamp clamps the upper part of the workpiece. First, use the first clamp to clamp the lower part of the workpiece, and then use the second clamp to fix the upper part of the workpiece.

[0006] Further, the first clamp includes a clamping block. A bearing is fixedly arranged on the side of the clamping block away from the workpiece. A first screw is rotatably arranged in the bearing. The first screw is arranged on the support table through a fixed block. The fixed block is threadedly connected with the first screw. A handle is arranged at the end of the first screw. Rotating the handle drives the first screw to rotate relative to the fixed block, thereby adjusting the distance between the clamping block and the fixed block. The first screw is used to drive the clamping block.

[0007] Further, a clamping pad is arranged on the side of the clamping block close to the workpiece. The side of the clamping pad close to the workpiece is serrated. The clamping pad is made of flexible material, which can effectively reduce the degree of wear on the material during clamping and ensure the friction force after clamping.

[0008] Further, the lifting mechanism comprises two parallel limiting grooves vertically arranged on the first clamp, a reverse U-shaped lifting plate is inserted into the limiting grooves, a limiting hole is arranged on the supporting leg of the lifting plate in the limiting groove, a bolt is movably arranged in the limiting hole, and the bolt fastens the lifting plate on the first clamp.

[0009] Further, a gasket is arranged at the connection between the bolt and the lifting plate, so that the connection between the bolt and the lifting plate is more compact.

[0010] Further, the second clamp is arranged at the top of the lifting mechanism, the second clamp comprises a contact block and a second screw rod connected to one side of the contact block, the second screw rod is threadedly connected with the lifting mechanism, and a handle is arranged at the tail end of the second screw rod; the handle is rotated to rotate the second screw rod relative to the lifting mechanism, so as to adjust the distance between the contact block and the workpiece; and the contact block directly contacts the workpiece.

[0011] Further, the supporting table is square, and the clamping devices are arranged on each side of the supporting table in a corresponding manner; and when the clamping device is clamped, the workpiece to be measured is located at the center position of the supporting table.

[0012] Through the above technical scheme, the utility model has the beneficial effects that:

[0013] The utility model discloses a first clamp, a second clamp and a lifting mechanism are arranged on the supporting table, the lifting mechanism adjusts the height of the second clamp relative to the first clamp, and the utility model can effectively expand the height position of the clamped impact-resistant experimental material, thereby effectively reducing the risk that the clamping force is reduced due to the shaking range of the impact-resistant experimental material with a higher volume after being impacted, and guaranteeing the stability of clamping. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the structural schematic diagram of the utility model;

[0015] Figure 2 It is the structural schematic diagram of the clamping device of the utility model;

[0016] Figure 3 It is the top view of the utility model;

[0017] Figure 4 It is the front view of the utility model;

[0018] In the drawings, 1 is the supporting table, 11 is the fixed block, 21 is the clamping block, 22 is the bearing, 23 is the first screw rod, 24 is the handle, 25 is the clamping pad, 31 is the lifting plate, 32 is the limiting hole, 33 is the bolt, 34 is the gasket, 41 is the contact block, 42 is the second screw rod, and 43 is the handle. DETAILED DESCRIPTION

[0019] The utility model will be further described below in combination with the drawings and specific embodiments:

[0020] As Figures 1-4 shown, the embodiment provides a multi-angle clamp for impact resistance experiment, which is used for clamping workpieces and comprises a support table 1, a plurality of sets of clamping devices are arranged on the support table 1, and an adapter piece is fixedly arranged on one side of the support table 1, as Figure 1 shown, the adapter piece is L-shaped, screw holes are arranged on the inner side of the adapter piece, and the support table 1 can be fixed to the ground in cooperation with a pre-buried screw rod.

[0021] The clamping device comprises a first clamp and a second clamp, the second clamp is arranged on the first clamp through a lifting mechanism, the lifting mechanism adjusts the height of the second clamp relative to the first clamp, the first clamp clamps the lower part of the workpiece, and the second clamp clamps the upper part of the workpiece. When in use, the first clamp is used to fix the workpiece to be measured first, then the height of the second clamp is adjusted through the lifting mechanism, and the second clamp is used to fix the workpiece again.

[0022] As Figure 2 shown, the first clamp comprises a clamping block 21, the clamping block 21 is in the shape of a cuboid, the largest face of the clamping block 21 is used for fixing the workpiece to be measured, a bearing 22 is fixedly arranged on the side of the clamping block 21 away from the workpiece, a first screw rod 23 is rotatably arranged in the bearing 22, the first screw rod 23 is arranged on the support table 1 through a fixing block 11, the fixing block 11 is square-shaped, the bottom end of the fixing block 11 is fixed on the support table 1, and the fixing block 11 is provided with a threaded hole matched with the first screw rod 23.

[0023] The fixing block 11 is in threaded connection with the first screw rod 23, a handle 24 is arranged at the end of the first screw rod 23, the handle 24 is rotated to drive the first screw rod 23 to rotate relative to the fixing block 11, and then the distance between the clamping block 21 and the fixing block 11 is adjusted. Specifically, the handle 24 comprises a cylindrical connecting portion and holding rods symmetrically arranged on both sides of the connecting portion, and the handle 24 is convenient for personnel to hold and rotate.

[0024] The side of the clamping block 21 close to the workpiece is provided with a clamping pad 25, the clamping pad 25 is made of elastic material or flexible material, the clamping pad 25 is fixed on the clamping face of the clamping block 21, the side of the clamping pad 25 close to the workpiece is zigzag-shaped, the wear degree of the material caused in the clamping process can be effectively reduced, and the friction force after clamping is guaranteed.

[0025] The lifting mechanism comprises two parallel limiting grooves vertically arranged on the first clamp, and specifically, the top of the clamping block 21 is fixedly provided with an adapter block in a rectangular shape, two parallel limiting strips are fixedly arranged on one side of the adapter block close to the first screw rod 23, the limiting groove is formed between the two parallel limiting strips, and the bolt 33 is threadedly connected with the adapter block through the limiting strips.

[0026] The lifting plate 31 in an inverted U shape is inserted into the limiting groove, the lifting plate 31 is provided with a limiting hole 32 on the supporting leg in the limiting groove, the limiting hole 32 is in a strip shape, the width of the limiting hole 32 is smaller than the width of the bolt 33, the bolt 33 is movably arranged in the limiting hole 32, and the lifting plate 31 is fastened on the first clamp by the bolt 33. The second clamp is arranged on the top of the lifting plate 31, and the second screw rod 42 is threadedly connected to the horizontal plate on the upper portion of the lifting plate 31.

[0027] In order to make the connection between the lifting plate 31 and the first clamp more close, the connecting part between the bolt 33 and the lifting plate 31 is provided with a gasket 34, the gasket 34 is sleeved on the end portion of the bolt 33, and the loosening range generated by the bolt 33 during long-time use is reduced.

[0028] The second clamp is arranged on the top of the lifting mechanism, in the embodiment, the second screw rod 42 of the second clamp is threadedly connected with the lifting plate 31, the lifting plate 31 is provided with a threaded hole matched with the second screw rod 42, and the second screw rod 42 is connected with the contact block 41 through the lifting plate 31.

[0029] The second clamp comprises the contact block 41 and the second screw rod 42 connected to one side of the contact block 41, the contact block 41 is in a cylindrical shape, the contact block 41 is made of a flexible material or an elastic material, the contact area of the contact block 41 with the workpiece to be measured is smaller than the contact area of the clamping pad 25 with the workpiece to be measured, the second screw rod 42 is threadedly connected with the lifting mechanism, the handle 43 is arranged at the end of the second screw rod 42, the handle 43 is in a cylindrical shape, and personnel can hold and rotate the handle 43.

[0030] As shown in the figure, Figure 3 The supporting table 1 is in a square shape, the clamping devices are arranged on each side of the supporting table 1, and the clamping devices are arranged in pairs. The middle portion of the side of the supporting table 1 is outwardly protruding to form a small supporting platform, and the fixed block 11 is arranged on the edge of the supporting platform.

[0031] Working principle of the utility model:

[0032] In use, the material to be tested is placed on the top of the support table 1, the rotating handle 24 of each clamping device is rotated, the first screw rod 23 drives the clamping block 21 to move towards the center until each clamping pad 25 fully contacts the impact-resistant experimental material, the clamping of the first clamp is completed; then the bolt 33 is loosened, the lifting plate 31 is lifted to the required height by cooperating with the limiting groove and the limiting hole 32, the bolt 33 is tightened to fix the height position of the lifting plate 31; finally, the handle 43 is pinched and rotated, the second screw rod 42 is rotated, the second screw rod 42 drives the contact block 41 to move towards the center until each contact block 41 fully contacts the impact-resistant experimental material, the clamping of the second clamp is completed; the height position of the clamping impact-resistant experimental material can be effectively expanded, thereby effectively reducing the risk of the clamping force being reduced due to the shaking range of the impact-resistant experimental material with a high volume caused by the impact, and the stability of clamping is ensured.

[0033] The above-described embodiments are only preferred embodiments of the present application, and are not intended to limit the scope of the present application. Any equivalent changes or modifications made in accordance with the structure, features and principles described in the patent range of the present application should be included in the patent range of the present application.

Claims

1. A multi-angle fixture for impact resistance test for clamping a workpiece, comprising a support table (1) on which a plurality of sets of clamping devices are arranged, characterized in that, The clamping device comprises a first clamp and a second clamp, the second clamp is arranged on the first clamp through a lifting mechanism, the lifting mechanism adjusts the height of the second clamp relative to the first clamp, the first clamp clamps the lower part of the workpiece, and the second clamp clamps the upper part of the workpiece.

2. A multi-angle fixture for impact resistance testing according to claim 1, wherein, The first clamp comprises a clamping block (21), a bearing (22) is fixedly arranged on the side of the clamping block (21) away from the workpiece, a first screw rod (23) is rotatably arranged in the bearing (22), the first screw rod (23) is arranged on the support table (1) through a fixing block (11), the fixing block (11) is threadedly connected with the first screw rod (23), and a rotating handle (24) is arranged at the tail end of the first screw rod (23). When the rotating handle (24) is rotated, the first screw rod (23) is driven to rotate relative to the fixing block (11), and then the distance between the clamping block (21) and the fixing block (11) is adjusted.

3. A multi-angle fixture for impact resistance testing according to claim 2, wherein, The side of the clamping block (21) close to the workpiece is provided with a clamping pad (25), and the side of the clamping pad (25) close to the workpiece is zigzag.

4. The multi-angle fixture for impact resistance testing of claim 1, wherein, The lifting mechanism comprises two parallel limiting grooves vertically arranged on the first clamp, a lifting plate (31) in the shape of an inverted U is inserted into the limiting grooves, a limiting hole (32) is arranged on the supporting leg of the lifting plate (31) in the limiting groove, a bolt (33) is movably arranged in the limiting hole (32), and the bolt (33) fastens the lifting plate (31) on the first clamp.

5. A multi-angle fixture for impact resistance testing according to claim 4, wherein, A gasket (34) is arranged at the connection between the bolt (33) and the lifting plate (31).

6. The multi-angle fixture for impact resistance testing of claim 1, wherein, The second clamp is arranged at the top of the lifting mechanism, the second clamp comprises a contact block (41) and a second screw rod (42) connected to one side of the contact block (41), the second screw rod (42) is threadedly connected with the lifting mechanism, and a handle (43) is arranged at the tail end of the second screw rod (42).

7. The multi-angle fixture for impact resistance testing of claim 1, wherein, The support table (1) is square, each side of the support table (1) is provided with a clamping device, and the clamping devices are arranged in pairs.

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