Sample clamp capable of adjusting clamping direction

Abstract

The utility model belongs to the technical field of clamps, and particularly relates to a sample clamp capable of adjusting the clamping direction, which comprises a lower base, an adjusting screw rod is arranged on the inner wall of the lower base, a sliding block is in threaded connection with the outer wall of the adjusting screw rod, and two ends of the sliding block are movably connected with connecting pore plates. The top end of the connecting hole plate is fixedly connected with an adjusting seat rotationally connected with the inner wall of the lower base, the adjusting seat and a clamping block are arranged, an adjusting screw rotates to drive a sliding block to slide through threads, the sliding block slides to drive the adjusting seat to rotate through the connecting hole plate, and then the adjusting seat rotates to drive the clamping block at the top end of the clamping frame to rotate synchronously. The clamping direction of the clamping block is adjusted, a sample can be stably clamped according to the shape of the sample, then the connecting groove moves to drive the connecting base to slide in the limiting groove, the connecting base slides to drive the clamping block to clamp the sample, and similarly, the top end of the sample is clamped through the upper base.

Description

Technical Field

[0001] This utility model belongs to the field of clamping technology, and in particular relates to a sample clamp with adjustable clamping orientation. Background Technology

[0002] Tensile testing involves slowly pulling a material sample under an axial force until it breaks. The purpose of tensile testing is to determine the yield strength, tensile strength, and elongation of a material. During the test, attention should be paid to observing the changes between tensile force and deformation, and determining the stress-strain relationship curve to evaluate the strength grade of the material.

[0003] For example, patent CN222318640U discloses a metal tensile testing device, including a worktable, a tensile tester, a buffer assembly, a clamping assembly, and a controller. The worktable has a support platform; the tensile tester is mounted on the support platform; one end of the buffer assembly is fixedly connected to the worktable, and the other end is slidably connected to the extension shaft of the tensile tester; the clamping assembly includes a connector, a clamping mechanism, and a control mechanism. The connector has a connector hole and an insertion hole at both ends, and the extension shaft of the tensile tester is slidably connected to the insertion hole; the clamping mechanism is located inside the connector; one end of the control mechanism is rotatably connected to the clamping mechanism, and the other end is fixedly connected to the extension shaft of the tensile tester, and the other end of the control mechanism abuts against the connector; the controller is mounted on the worktable and connected to the tensile tester. This allows for rapid clamping of metal parts, thereby improving the tensile testing efficiency of the device.

[0004] Existing sample clamps often exhibit unstable sample holding when performing tensile tests on irregular samples. Therefore, we propose a sample clamp with adjustable clamping orientation. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned technical problems by providing an adjustable clamping position sample holder, thereby avoiding the problem of unstable clamping of irregular samples.

[0006] In view of this, the present invention provides a sample clamp with adjustable clamping orientation, including a lower base. An adjusting screw is provided on the inner wall of the lower base. A sliding block is threadedly connected to the outer wall of the adjusting screw. Both ends of the sliding block are movably connected to connecting hole plates. An adjusting seat that is screwed to the inner wall of the lower base is fixedly connected to the top of the connecting hole plate. A clamping frame is fixedly connected to the top of the adjusting seat. A clamping screw is provided on the inner wall of the clamping frame. A sliding plate is threadedly connected to the outer wall of the clamping screw. A connecting groove is opened at one end of the sliding plate. A connecting seat is movably connected in the groove. A limit groove is opened at the connection part between the clamping frame and the connecting seat. A clamping block is fixedly connected to the top of the connecting seat.

[0007] Based on the above structure, the rotation of the adjusting screw drives the sliding block to slide through the thread. The sliding block drives the adjusting seat to rotate through the connecting hole plate. In turn, the rotation of the adjusting seat drives the clamping block at the top of the clamping frame to rotate synchronously, thereby realizing the adjustment of the clamping position of the clamping block. This facilitates the stable clamping operation of the sample according to its shape. Then, the movement of the connecting groove drives the connecting seat to slide along the groove of the limiting groove. The sliding of the connecting seat drives the clamping block to clamp the sample. Similarly, the top of the sample is clamped through the upper base.

[0008] Preferably, the cross-section of the adjustment seat is inverted triangular. In this embodiment, by setting the adjustment seat with an inverted triangular cross-section, it is beneficial to improve the stability of the clamping frame connection.

[0009] Preferably, the adjusting seat forms a rotating structure with the lower base through a sliding block and a connecting hole plate. In this embodiment, the sliding block slides through the connecting hole plate to drive the adjusting seat to rotate, and then the rotation of the adjusting seat drives the clamping block at the top of the clamping frame to rotate synchronously, thereby realizing the adjustment operation of the clamping position of the clamping block, which facilitates the stable clamping operation of the sample according to the sample shape.

[0010] Preferably, the connecting groove is inclined, and there are two sets of connecting grooves. The two sets of connecting grooves are symmetrical about the sliding plate. In this embodiment, the sliding plate drives the two sets of connecting grooves to move synchronously, so that the movement of the connecting groove drives the connecting seat to slide along the groove of the limiting groove, and the sliding of the connecting seat drives the clamping block to perform a clamping operation on the sample.

[0011] Preferably, the clamping block is triangular in shape, and the clamping surface of the clamping block is provided with anti-slip texture. In this embodiment, this helps to increase the friction between the clamping block and the sample, and prevent the sample from falling off during tensile testing.

[0012] Preferably, a detection frame is fixedly connected to the bottom end of the lower base, a motor is fixedly connected to the inner wall of the detection frame, a detection screw is fixedly connected to the output end of the motor, a lifting slider is threadedly connected to the outer wall of the detection screw, a lifting block is fixedly connected to the side wall of the lifting slider, a tension sensor is fixedly connected to the bottom end of the lifting block, and an upper base is fixedly connected to the bottom end of the tension sensor. In this embodiment, the motor drives the lifting slider to slide through the detection screw, and the sliding of the lifting slider drives the upper base at the bottom end of the lifting block to slide synchronously, thus stretching the sample. The tension sensor is used to perform a stretching test on the sample.

[0013] Preferably, the lower base and the upper base have the same structure, and the central axis of the lower base and the upper base is parallel to the detection screw. In this embodiment, it is convenient to stably clamp the upper and lower ends of the sample.

[0014] The beneficial effects of this utility model are:

[0015] 1. This adjustable clamping sample fixture, by setting an adjustment seat, the rotation of the adjustment screw drives the sliding block to slide through the thread, the sliding block drives the adjustment seat to rotate through the connecting hole plate, and then the rotation of the adjustment seat drives the clamping block at the top of the clamping frame to rotate synchronously, thereby realizing the adjustment operation of the clamping position of the clamping block, which facilitates the stable clamping operation of the sample according to the sample shape.

[0016] 2. This adjustable clamping sample fixture, by setting a clamping block, the rotation of the clamping screw drives the sliding plate to slide through the thread. The sliding plate drives the two sets of connecting grooves to move synchronously, so that the movement of the connecting grooves drives the connecting seat to slide along the groove of the limiting groove. The sliding of the connecting seat drives the clamping block to perform a clamping operation on the sample. Similarly, the top of the sample is clamped by the upper base. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the lower base and clamping frame structure of this utility model;

[0020] Figure 4 This is a cross-sectional view of the lower base of this utility model;

[0021] Figure 5 This is a cross-sectional view of the clamping frame of this utility model.

[0022] The markings in the diagram are as follows:

[0023] 1. Lower base; 2. Adjusting screw; 3. Sliding block; 4. Connecting hole plate; 5. Adjusting seat; 6. Clamping frame; 7. Clamping screw; 8. Sliding plate; 9. Connecting groove; 10. Connecting seat; 11. Limiting groove; 12. Clamping block; 13. Detection frame; 14. Motor; 15. Detection screw; 16. Lifting slider; 17. Lifting block; 18. Tension sensor; 19. Upper base. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1 - Figure 5 This application will be described in further detail.

[0025] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0026] This application discloses an adjustable clamping sample fixture, including a lower base 1. An adjusting screw 2 is provided on the inner wall of the lower base 1. A sliding block 3 is threadedly connected to the outer wall of the adjusting screw 2. Both ends of the sliding block 3 are movably connected to connecting hole plates 4. An adjusting seat 5, which is screwed to the inner wall of the lower base 1, is fixedly connected to the top of the connecting hole plate 4. A clamping frame 6 is fixedly connected to the top of the adjusting seat 5. A clamping screw 7 is provided on the inner wall of the clamping frame 6. A sliding plate 8 is threadedly connected to the outer wall of the clamping screw 7. A connecting groove 9 is opened at one end of the sliding plate 8. A connecting seat 10 is movably connected in the groove of the connecting groove 9. A limit groove 11 is opened at the connection part between the clamping frame 6 and the connecting seat 10. A clamping block 12 is fixedly connected to the top of the connecting seat 10.

[0027] Based on the above structure, the rotation of the adjusting screw 2 drives the sliding block 3 to slide through the thread. The sliding block 3 drives the adjusting seat 5 to rotate through the connecting hole plate 4. In turn, the rotation of the adjusting seat 5 drives the clamping block 12 at the top of the clamping frame 6 to rotate synchronously, thereby realizing the adjustment of the clamping position of the clamping block 12. This facilitates the stable clamping operation of the sample according to its shape. Then, the movement of the connecting groove 9 drives the connecting seat 10 to slide along the groove of the limiting groove 11. The sliding of the connecting seat 10 drives the clamping block 12 to clamp the sample. Similarly, the top of the sample is clamped through the upper base 19.

[0028] In one embodiment, the cross-section of the adjustment seat 5 is an inverted triangle.

[0029] In this embodiment, by setting an adjustment seat 5 with an inverted triangular cross-section, the stability of the clamping frame 6 connection is improved.

[0030] In one embodiment, the adjusting seat 5 forms a rotating structure with the lower base 1 via the sliding block 3 and the connecting hole plate 4.

[0031] In this embodiment, the sliding block 3 slides through the connecting hole plate 4 to drive the adjusting seat 5 to rotate, and then the rotating adjusting seat 5 drives the clamping block 12 at the top of the clamping frame 6 to rotate synchronously, so as to realize the adjustment operation of the clamping position of the clamping block 12, which facilitates the stable clamping operation of the sample according to the sample shape.

[0032] In one embodiment, the connecting groove 9 is inclined, and there are two sets of connecting grooves 9, which are symmetrical about the sliding plate 8.

[0033] In this embodiment, the sliding plate 8 slides and drives the two sets of connecting grooves 9 to move synchronously, so that the movement of the connecting grooves 9 drives the connecting seat 10 to slide along the groove of the limiting groove 11, and the sliding of the connecting seat 10 drives the clamping block 12 to perform a clamping operation on the sample.

[0034] In one embodiment, the clamping block 12 is triangular in shape, and the clamping surface of the clamping block 12 is provided with anti-slip texture.

[0035] In this embodiment, it is beneficial to increase the friction between the clamping block 12 and the sample, so as to prevent the sample from falling off during the tensile test.

[0036] In one embodiment, a detection frame 13 is fixedly connected to the bottom end of the lower base 1, a motor 14 is fixedly connected to the inner wall of the detection frame 13, a detection screw 15 is fixedly connected to the output end of the motor 14, a lifting slider 16 is threadedly connected to the outer wall of the detection screw 15, a lifting block 17 is fixedly connected to the side wall of the lifting slider 16, a tension sensor 18 is fixedly connected to the bottom end of the lifting block 17, and an upper base 19 is fixedly connected to the bottom end of the tension sensor 18.

[0037] In this embodiment, the motor 14 operates by driving the lifting slider 16 to slide through the detection screw 15. The sliding of the lifting slider 16 causes the upper base 19 at the bottom of the lifting block 17 to slide synchronously, thus stretching the sample. The tensile sensor 18 performs a tensile test on the sample.

[0038] In one embodiment, the lower base 1 and the upper base 19 have the same structure, and the central axis of the lower base 1 and the upper base 19 is parallel to the detection screw 15.

[0039] In this embodiment, it is convenient to stably clamp the upper and lower ends of the sample.

[0040] In this embodiment, the adjustable clamping position sample fixture is used by first adjusting the clamping position of the clamping block 12. The operator rotates the adjusting screw 2, which drives the sliding block 3 to slide through the thread. The sliding block 3 drives the adjusting seat 5 to rotate through the connecting hole plate 4. In turn, the rotation of the adjusting seat 5 drives the clamping block 12 at the top of the clamping frame 6 to rotate synchronously, thereby realizing the adjustment operation of the clamping position of the clamping block 12, which facilitates the stable clamping operation of the sample according to the sample shape.

[0041] Next, the staff drives the clamping screw 7 to rotate. The rotation of the clamping screw 7 drives the sliding plate 8 to slide through the thread. The sliding plate 8 drives the two sets of connecting grooves 9 to move synchronously. The movement of the connecting grooves 9 drives the connecting seat 10 to slide along the groove of the limiting groove 11. The sliding of the connecting seat 10 drives the clamping block 12 to clamp the sample. Similarly, the top of the sample is clamped by the upper base 19.

[0042] Finally, the motor 14 operates by driving the lifting slider 16 to slide through the detection screw 15. The sliding of the lifting slider 16 causes the upper base 19 at the bottom of the lifting block 17 to slide synchronously, stretching the sample. The tensile sensor 18 performs a tensile test on the sample.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A sample holder with adjustable clamping orientation, characterized in that, The utility model relates to a kind of adjustable clamp, including lower base (1), the inner wall of the lower base (1) is provided with adjusting screw rod (2), the outer wall of the adjusting screw rod (2) is threadedly connected with sliding block (3), both ends of the sliding block (3) are movably connected with connecting hole plate (4), the top of the connecting hole plate (4) is fixedly connected with the adjusting seat (5) of the inner wall of lower base (1) is screwed, the top of the adjusting seat (5) is fixedly connected with clamping frame (6), the inner wall of the clamping frame (6) is provided with clamping screw rod (7), the outer wall of the clamping screw rod (7) is threadedly connected with sliding plate (8), the one end of the sliding plate (8) is provided with connecting groove (9), the connecting groove (9) is movably connected with connecting seat (10) in groove, the connecting part of the clamping frame (6) and connecting seat (10) is provided with limiting slot (11), the top of the connecting seat (10) is fixedly connected with clamping block (12).

2. The adjustable clamped orientation sample holder of claim 1, wherein: The adjusting seat (5) is inverted triangular in cross section.

3. The adjustable clamped orientation sample holder of claim 1, wherein: The adjusting seat (5) is rotatably connected between the lower base (1) by the sliding block (3) and the connecting hole plate (4).

4. The adjustable clamped-orientation sample holder of claim 1, wherein: The connecting groove (9) is inclined in shape, and two groups of the connecting groove (9) are symmetric about the sliding plate (8).

5. The adjustable clamped-orientation sample holder of claim 1, wherein: The clamping block (12) is triangular in shape, and the clamping surface of the clamping block (12) is provided with anti-skid lines.

6. The adjustable clamped-orientation sample holder of claim 1, wherein: The bottom of the lower base (1) is fixedly connected with a detection frame (13), the inner wall of the detection frame (13) is fixedly connected with a motor (14), the output end of the motor (14) is fixedly connected with a detection screw rod (15), the outer wall of the detection screw rod (15) is threadedly connected with a lifting sliding block (16), the side wall of the lifting sliding block (16) is fixedly connected with a lifting block (17), the bottom of the lifting block (17) is fixedly connected with a tension sensor (18), the bottom of the tension sensor (18) is fixedly connected with an upper base (19).

7. The adjustable clamped orientation sample holder of claim 6, wherein: The lower base (1) and the upper base (19) are the same structure, and the central axes of the lower base (1) and the upper base (19) are parallel to the detection screw rod (15).

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