Clamping device for impact tester

Abstract

The utility model discloses a clamping device for an impact tester, which comprises a device frame body, device plate bodies, a clamping seat, a bidirectional screw rod and a clamp, the device plate bodies are arranged on the outer wall of the device frame body, the clamping seat is arranged on the surface of the device plate bodies, the bidirectional screw rod is rotatably arranged in the clamping seat, and the clamp is arranged on the bidirectional screw rod. Guide rods are fixed in the clamping seats on the two sides of the two-way screw rod, the clamps are arranged on the outer walls of the two sides of the two-way screw rod and the guide rods in a sleeving mode, rotating rods are rotationally installed on the outer walls of the clamps, plane clamping blocks are fixed to one sides of the rotating rods, and cambered surface clamping blocks are fixed to the other sides of the rotating rods. Compared with a screw or adhesive tape fixing mode, the sample fixing device can quickly clamp and fix a sample, is more convenient and faster, can be adaptive to plane and curved surface samples, and is wide in application range.

Description

Technical Field

[0001] The utility model relates to the technical field of impact testers, in particular to a clamping device for an impact tester. Background Technique

[0002] An impact tester refers to a test instrument that applies an impact test force to a sample for an impact test. Common impact testers include pendulum impact testers. The pendulum impact test is a mechanical test method. The pendulum falls freely from a certain height and collides with the sample to evaluate the impact resistance of the sample under dynamic load.

[0003] When conducting an impact test on a sample, the sample needs to be fixed on the fixing frame of the impact tester. However, the test sample can only be fixed with screws or tape, and the operation is very inconvenient. Therefore, we propose a clamping device for an impact tester. Summary of the Invention

[0004] The purpose of the utility model is to provide a clamping device for an impact tester to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A clamping device for an impact tester, including a device frame body, a device plate body, a clamping seat, a bidirectional lead screw, and a clamp. The device plate bodies are all arranged on the outer wall of the device frame body. The clamping seat is arranged on the surface of the device plate body. The bidirectional lead screw is rotatably installed inside the clamping seat, and guide rods are fixed inside the clamping seat on both sides of the bidirectional lead screw. The clamps are all sleeved on the outer walls on both sides of the bidirectional lead screw and the guide rods. A rotating rod is rotatably installed on the outer wall of the clamp. A flat clamping block is fixed on one side of the rotating rod, and a curved clamping block is fixed on the other side of the rotating rod.

[0006] Preferably, the device plate body is connected to the device frame body by screws.

[0007] Preferably, side plates are fixed on both sides of the clamping seat, and the side plates are connected to the device plate body by bolts, which is convenient for fixing the clamping seat on the surface of the device plate body.

[0008] Preferably, one end of the bidirectional lead screw extends to the outside of the clamping seat and is provided with a knob, which is convenient for rotating the bidirectional lead screw.

[0009] Preferably, an upper suction cup and a lower suction cup are respectively installed inside the clamping seat above and below the bidirectional lead screw, which is convenient for adsorbing and fixing the sample.

[0010] Preferably, the clamp is threadedly connected to the bidirectional lead screw and is slidably connected to the guide rod.

[0011] Preferably, the surfaces of the flat clamping block and the arc-shaped clamping block are respectively adhered with a first rubber patch and a second rubber patch, which not only play a role in increasing the friction force, making the clamping more firm, but also can prevent the surface of the sample from being worn.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] Place the sample inside the clamping seat. For a sample with a flat back, press the sample so that the upper suction cup and the lower suction cup adsorb the sample to play a fixing role. If the edge of the sample is flat, face the flat clamping block towards the sample, rotate the knob to rotate the bidirectional lead screw so that the fixture translates along the bidirectional lead screw and the guide rod, and the fixture drives the flat clamping block to move closer to the sample from both sides synchronously until the sample is clamped, then the sample can be fixed on the device plate body; if the edge of the sample is arc-shaped, rotate the rotating rod so that the arc-shaped clamping block faces the sample. The arc-shaped structure of the arc-shaped clamping block matches the shape of the sample. The setting of the first rubber patch and the second rubber patch not only plays a role in increasing the friction force, making the clamping more firm, but also can prevent the surface of the sample from being worn. This design can not only quickly clamp and fix the sample, but also is more convenient compared with the fixing methods of screws or tapes, and can adapt to flat and curved samples, with a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic side view structure of the present utility model;

[0015] Figure 2 is a schematic front view structure of the present utility model;

[0016] Figure 3 is a schematic enlarged structure view of the clamping seat of the present utility model;

[0017] Figure 4 is a schematic enlarged structure view of the fixture of the present utility model.

[0018] In the figure: 1, device frame body; 2, device plate body; 3, clamping seat; 301, side plate; 302, bolt; 4, bidirectional lead screw; 401, knob; 5, guide rod; 6, fixture; 7, rotating rod; 8, flat clamping block; 801, first rubber patch; 9, arc-shaped clamping block; 901, second rubber patch; 10, upper suction cup; 11, lower suction cup. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] Please refer to Figures 1-4, an embodiment provided by the present utility model: A clamping device for an impact tester, comprising a device frame body 1, a device plate body 2, a clamping seat 3, a bidirectional lead screw 4 and a fixture 6. The device plate bodies 2 are all arranged on the outer wall of the device frame body 1. The clamping seat 3 is arranged on the surface of the device plate body 2. The bidirectional lead screw 4 is rotatably installed inside the clamping seat 3, and guide rods 5 are fixed inside the clamping seat 3 on both sides of the bidirectional lead screw 4;

[0021] The fixtures 6 are all sleeved on the outer walls on both sides of the bidirectional lead screw 4 and the guide rods 5, and a rotating rod 7 is rotatably installed on the outer wall of the fixture 6. A flat clamping block 8 is fixed on one side of the rotating rod 7, and a cambered surface clamping block 9 is fixed on the other side of the rotating rod 7;

[0022] Specifically, when an impact test needs to be performed on a sample, the sample is placed inside the clamping seat 3. If the edge of the sample is flat, the flat clamping block 8 is oriented towards the sample. The bidirectional lead screw 4 is rotated through the knob 401 so that the fixture 6 translates along the bidirectional lead screw 4 and the guide rods 5. The fixture 6 drives the flat clamping block 8 to approach the sample from both sides synchronously until the sample is clamped, and thus the sample can be fixed on the device plate body 2;

[0023] If the edge of the sample is cambered, the rotating rod 7 is rotated so that the cambered surface clamping block 9 is oriented towards the sample. The cambered surface structure of the cambered surface clamping block 9 matches the shape of the sample. This design can not only quickly clamp and fix the sample, but also is more convenient compared with the fixing methods of screws or tapes. Moreover, it can adapt to samples with flat and curved surfaces, and has a wide range of applications;

[0024] The device plate body 2 is connected to the device frame body 1 by screws;

[0025] Side plates 301 are fixed on both sides of the clamping seat 3, and the side plates 301 are all connected to the device plate body 2 by bolts 302;

[0026] One end of the bidirectional lead screw 4 extends to the outside of the clamping seat 3 and is provided with a knob 401;

[0027] An upper suction cup 10 and a lower suction cup 11 are respectively installed inside the clamping seat 3 above and below the bidirectional lead screw 4;

[0028] Specifically, for a sample with a flat back surface, the sample is pressed so that the upper suction cup 10 and the lower suction cup 11 adsorb the sample, playing a role in fixing;

[0029] The fixture 6 is threadedly connected to the bidirectional lead screw 4, and the fixture 6 is slidably connected to the guide rod 5;

[0030] First rubber patches 801 and second rubber patches 901 are respectively adhered to the surfaces of the flat clamping block 8 and the cambered surface clamping block 9;

[0031] Specifically, the settings of the first rubber patch 801 and the second rubber patch 901 not only play a role in increasing the friction force, making the clamping more firm, but also can prevent the surface of the sample from being worn.

[0032] When the embodiment of the present application is in use: First, fix the device frame 1 on one side of the impact tester. The clamping seat 3 is installed on the surface of the device plate body 2 through the side plate 301 and the bolt 302. When it is necessary to conduct an impact test on the sample, place the sample inside the clamping seat 3. For a sample with a flat back surface, press the sample so that the upper suction cup 10 and the lower suction cup 11 adsorb the sample, playing a role of fixation. If the edge of the sample is flat, turn the flat clamping block 8 towards the sample. Secondly, rotate the bidirectional lead screw 4 through the knob 401 so that the fixture 6 translates along the bidirectional lead screw 4 and the guide rod 5. The fixture 6 drives the flat clamping block 8 to approach the sample synchronously from both sides until the sample is clamped, and then the sample can be fixed on the device plate body 2; if the edge of the sample is arc-shaped, rotate the rotating rod 7 so that the arc-shaped clamping block 9 faces the sample. The arc-shaped structure of the arc-shaped clamping block 9 matches the shape of the sample. The settings of the first rubber patch 801 and the second rubber patch 901 not only play a role in increasing the friction force, making the clamping more firm, but also can prevent the surface of the sample from being worn. This design can not only quickly clamp and fix the sample, but also is more convenient compared with the fixing methods of screws or tapes. Moreover, it can adapt to flat and curved samples, with a wide range of applications. Then, lift the impact hammer of the impact tester to a certain height and then release it. The impact hammer freely falls from a certain height and collides with the sample, and then the impact resistance of the sample under dynamic load can be evaluated.

[0033] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

Claims

1. A clamping device for an impact tester, characterized in that: The device comprises a device frame (1), a device plate (2), a clamping seat (3), a bidirectional screw rod (4) and a clamp (6), wherein the device plate (2) is arranged on the outer wall of the device frame (1), the clamping seat (3) is arranged on the surface of the device plate (2), the bidirectional screw rod (4) is rotatably mounted inside the clamping seat (3), and guide rods (5) are fixed inside the clamping seat (3) on both sides of the bidirectional screw rod (4), the clamp (6) is sleeved on the outer walls on both sides of the bidirectional screw rod (4) and the guide rod (5), and a rotating rod (7) is rotatably mounted on the outer wall of the clamp (6), a flat clamping block (8) is fixed on one side of the rotating rod (7), and an arc clamping block (9) is fixed on the other side of the rotating rod (7).

2. A clamping device for an impact tester according to claim 1, characterized in that: The device plate (2) is connected to the device frame (1) via screws.

3. A clamping device for an impact tester according to claim 1, characterized in that: Side plates (301) are fixed on both sides of the clamping seat (3), and the side plates (301) are connected to the device plate body (2) via bolts (302).

4. A clamping device for an impact tester according to claim 1, characterized in that: One end of the bidirectional screw rod (4) extends to the outside of the clamping seat (3) and is provided with a knob (401).

5. The clamping device for an impact tester according to claim 1, characterized in that: An upper suction cup (10) and a lower suction cup (11) are respectively installed inside the clamping seat (3) above and below the bidirectional screw rod (4).

6. A clamping device for an impact tester according to claim 1, characterized in that: The clamp (6) is threadedly connected to the bidirectional screw rod (4), and the clamp (6) is slidably connected to the guide rod (5).

7. A clamping device for an impact tester according to claim 1, characterized in that: A first rubber patch (801) and a second rubber patch (901) are adhered to the surfaces of the plane clamping block (8) and the arc surface clamping block (9), respectively.

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