Clamp for metal tension test

Abstract

The utility model discloses a clamp for metal tension test, which belongs to the technical field of metal tension test, and comprises a base, the upper surface of the base is fixedly connected with a first support rod, the upper surface of the first support rod is fixedly connected with a top plate, and a pulling mechanism is arranged below the top plate. A supporting plate and a clamping mechanism are arranged above the base; according to the device, the air pump, the first guide pipe, the second guide pipe, the protective shell, the piston and the clamping mechanism are arranged, the air pump conveys air into the protective shell through the first guide pipe and the second guide pipe, the piston is pushed through the air pressure effect in the protective shell, and the piston further pushes the two wedge blocks to be close to each other under the limiting effect of the hole groove; and the air pump driving system is adopted, so that the force can be quickly and efficiently applied and released, the operation efficiency is improved, and the testing time is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of metal tensile testing, and particularly relates to a fixture for metal tensile testing. Background Technique

[0002] Fixtures for metal tensile testing are usually tools or devices used to hold test samples for tensile testing. These fixtures are designed to provide a stable clamping force during the test to ensure that the sample does not move when tensile force is applied, thus ensuring the accuracy and repeatability of the test results. These fixtures are usually made of metal materials to ensure sufficient strength and stability.

[0003] Most of the existing fixtures are fixed by threaded means and usually require manual adjustment of the clamping force and the force applied for tensile testing. The operation is cumbersome and inefficient, increasing the test time and the workload of the operator. Therefore, a fixture for metal tensile testing is needed to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a fixture for metal tensile testing 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 fixture for metal tensile testing, including a base, the upper surface of the base is fixedly connected with a first support rod, the upper surface of the first support rod is fixedly connected with a top plate, a pulling mechanism is arranged below the top plate, a support plate and a clamping mechanism are arranged above the base, a transmission mechanism is arranged inside the support plate, the clamping mechanism includes a housing, a wedge block, a cushion block and a fixing rod, the cushion block is fixedly connected with the fixing rod, the housing is fixedly connected with the support plate, the transmission mechanism includes a protective shell and a piston, the protective shell is fixedly connected inside the support plate, the piston is slidably connected inside the protective shell and extends into the inside of the housing, a hole groove is opened inside the housing, the wedge block is located inside the housing, the fixing rod is fixedly connected inside the wedge block, the fixing rod is slidably connected inside the hole groove, a driving mechanism is arranged below the base, the driving mechanism includes an air pump, a first conduit and a second conduit, the air pump is fixedly connected to the lower surface of the base, both the first conduit and the second conduit are fixedly connected to the output end of the air pump, the pulling mechanism includes an electric push rod, a fixing block and a second support rod, the electric push rod is fixedly connected to the lower surface of the top plate, and the fixing block is fixedly connected to the lower surface of the electric push rod.

[0006] By providing an air pump, a first conduit, a second conduit, a protective housing, a piston, and a clamping mechanism, the air pump transports gas through the first and second conduits into the protective housing. Under the action of the air pressure in the protective housing, the piston is pushed, and under the limiting action of the hole grooves, the piston further pushes two wedge blocks closer to each other, thereby clamping the metal sample. An air pump drive system is adopted, which can apply and release force quickly and efficiently, improving the operation efficiency and saving the test time.

[0007] As a preferred embodiment, the number of the support plates, the pulling mechanisms, and the transmission mechanisms is two and they are symmetrically arranged up and down. The number of the fixing rods, the wedge blocks, the cushion blocks, and the hole grooves is two and they are symmetrically arranged.

[0008] By providing the support plate, a support platform for the clamping mechanism and the transmission mechanism is provided to ensure the stability of the fixture.

[0009] As a preferred embodiment, the upper surface of the first support rod is fixedly connected with a top plate. One of the support plates is fixedly connected to the upper surface of the base, and the other support plate is slidably connected outside the first support rod.

[0010] By providing the first support rod, the top plate and the upper structure of the entire fixture are supported.

[0011] As a preferred embodiment, the other end of the second conduit is fixedly connected to the protective housing located above, and the other end of the first conduit is fixedly connected to the protective housing located below.

[0012] By providing the first conduit, the air pressure generated by the air pump is transmitted into the protective housing.

[0013] As a preferred embodiment, the number of the second support rods is multiple and they are distributed in a circular array. The top ends of the second support rods are fixedly connected to the fixing blocks, and the bottom ends of the second support rods are fixedly connected to the support plate located above.

[0014] By providing the fixing blocks, connection points for the second support rods are provided.

[0015] As a preferred embodiment, the lower surface of the base is fixedly connected with support legs. The number of the first support rods and the support legs is multiple and they are distributed in a rectangular array.

[0016] By providing the support legs, the overall stability and support force are enhanced.

[0017] Compared with the prior art, the beneficial effects of the present utility model are:

[0018] In this utility model, by providing an air pump, a first conduit, a second conduit, a protective shell, a piston and a clamping mechanism, the air pump transports gas into the protective shell through the first conduit and the second conduit. Under the action of the air pressure in the protective shell, the piston is pushed. Under the limiting action of the hole groove, the piston further pushes two wedge-shaped blocks closer to each other, thereby clamping the metal sample. An air pump drive system is adopted, which can apply and release force quickly and efficiently, improve the operation efficiency and save the test time;

[0019] In this utility model, by providing a housing, wedge-shaped blocks, fixed rods, cushion blocks and hole grooves, it can ensure that the metal sample is subjected to a stable and uniform clamping force during the test, avoid the situation of the sample moving or sliding during the test, and thus ensure the accuracy and reliability of the test results. Brief Description of the Drawings

[0020] Figure 1 is a schematic structural diagram of the front three-dimensional view of this utility model;

[0021] Figure 2 is a schematic structural diagram of the side three-dimensional view of this utility model;

[0022] Figure 3 is a schematic cross-sectional structural diagram of a partial front three-dimensional view of this utility model;

[0023] Figure 4 is a schematic cross-sectional structural diagram of a partial front three-dimensional view of this utility model.

[0024] In the figure: 1, base; 2, support plate; 3, first support rod; 4, top plate; 5, pulling mechanism; 51, electric push rod; 52, fixed block; 53, second support rod; 6, clamping mechanism; 61, housing; 62, wedge-shaped block; 63, fixed rod; 64, cushion block; 7, hole groove; 8, driving mechanism; 81, air pump; 82, first conduit; 83, second conduit; 9, transmission mechanism; 91, protective shell; 92, piston; 10, support leg. Detailed Description of the Invention

[0025] The following further describes this utility model in conjunction with embodiments.

[0026] The following embodiments are used to illustrate this utility model, but cannot be used to limit the protection scope of this utility model. The conditions in the embodiments can be further adjusted according to specific conditions. Any simple improvement to the method of this utility model under the premise of the concept of this utility model belongs to the scope required to be protected by this utility model.

[0027] Please refer to Figures 1-4, the present utility model provides a fixture for metal tensile test, which includes a base 1. A first support rod 3 is fixedly connected to the upper surface of the base 1. A top plate 4 is fixedly connected to the upper surface of the first support rod 3. A pulling mechanism 5 is arranged below the top plate 4. A support plate 2 and a clamping mechanism 6 are arranged above the base 1. A transmission mechanism 9 is arranged inside the support plate 2. The clamping mechanism 6 includes a housing 61, a wedge block 62, a cushion block 64 and a fixing rod 63. The cushion block 64 is fixedly connected to the fixing rod 63. The housing 61 is fixedly connected to the support plate 2. The transmission mechanism 9 includes a protective shell 91 and a piston 92. The protective shell 91 is fixedly connected inside the support plate 2. The piston 92 is slidably connected inside the protective shell 91 and extends into the housing 61. A hole groove 7 is formed inside the housing 61. The wedge block 62 is located inside the housing 61. The fixing rod 63 is fixedly connected inside the wedge block 62. The fixing rod 63 is slidably connected inside the hole groove 7. A driving mechanism 8 is arranged below the base 1. The driving mechanism 8 includes an air pump 81, a first conduit 82 and a second conduit 83. The air pump 81 is fixedly connected to the lower surface of the base 1. Both the first conduit 82 and the second conduit 83 are fixedly connected to the output end of the air pump 81. The pulling mechanism 5 includes an electric push rod 51, a fixing block 52 and a second support rod 53. The electric push rod 51 is fixedly connected to the lower surface of the top plate 4. The fixing block 52 is fixedly connected to the lower surface of the electric push rod 51.

[0028] The number of the support plate 2, the pulling mechanism 5 and the transmission mechanism 9 is two and they are symmetrically arranged up and down. The number of the fixing rod 63, the wedge block 62, the cushion block 64 and the hole groove 7 is two and they are symmetrically arranged. By arranging the support plate 2, a support platform for the clamping mechanism 6 and the transmission mechanism 9 is provided to ensure the stability of the fixture. A top plate 4 is fixedly connected to the upper surface of the first support rod 3. One of the support plates 2 is fixedly connected to the upper surface of the base 1, and the other support plate 2 is slidably connected outside the first support rod 3. By arranging the first support rod 3, the top plate 4 and the upper structure of the whole fixture are supported. The other end of the second conduit 83 is fixedly connected to the protective shell 91 located above, and the other end of the first conduit 82 is fixedly connected to the protective shell 91 located below. By arranging the first conduit 82, the air pressure generated by the air pump 81 is transmitted into the protective shell 91.

[0029] The number of the second support rods 53 is multiple and they are distributed in a circular array. The top ends of the second support rods 53 are fixedly connected to the fixing block 52, and the bottom ends of the second support rods 53 are fixedly connected to the support plate 2 located above. By arranging the fixing block 52, a connection point for the second support rods 53 is provided. Support legs 10 are fixedly connected to the lower surface of the base 1. The number of the first support rod 3 and the support legs 10 is multiple and they are distributed in a rectangular array. By arranging the support legs 10, the overall stability and support force are enhanced.

[0030] The working principle and usage process of the present utility model:

[0031] Insert both ends of the metal to be detected between two pads 64, start the air pump 81, the air pump 81 conveys gas through the first conduit 82 and the second conduit 83 into the protective shell 91. Under the action of the air pressure in the protective shell 91, the piston 92 is pushed. Under the limiting action of the hole groove 7, the piston 92 further pushes the two wedge-shaped blocks 62 closer to each other, thereby clamping the metal sample. At the same time, start the electric push rod 51, and the electric push rod 51 drives the clamping mechanism 6 located above through the fixing block 52 and the second support rod 53 to ensure that the sample is subjected to a uniform tensile force. When the test is completed, release the air pump 81 so that the sample can be easily removed.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A metal tensile test fixture, comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected to a first support rod (3), the upper surface of the first support rod (3) is fixedly connected to a top plate (4), a pulling mechanism (5) is arranged below the top plate (4), a support plate (2) and a clamping mechanism (6) are arranged above the base (1), a transmission mechanism (9) is arranged inside the support plate (2), the clamping mechanism (6) comprises an outer shell (61), a wedge block (62), a cushion block (64) and a fixed rod (63), the cushion block (64) is fixedly connected to the fixed rod (63), the outer shell (61) is fixedly connected to the support plate (2), the transmission mechanism (9) comprises a protective shell (91) and a piston (92), the protective shell (91) is fixedly connected to the inside of the support plate (2), the piston (92) is slidably connected to the inside of the protective shell (91) and extends to the inside of the outer shell (61), the A hole groove (7) is provided inside the shell (61), the wedge block (62) is located inside the shell (61), the fixing rod (63) is fixedly connected inside the wedge block (62), and the fixing rod (63) is slidably connected inside the hole groove (7). A driving mechanism (8) is provided below the base (1), and the driving mechanism (8) comprises an air pump (81), a first conduit (82) and a second conduit (83). The air pump (81) is fixedly connected to the lower surface of the base (1), and the first conduit (82) and the second conduit (83) are both fixedly connected to the output end of the air pump (81). The pulling mechanism (5) comprises an electric push rod (51), a fixing block (52) and a second support rod (53). The electric push rod (51) is fixedly connected to the lower surface of the top plate (4), and the fixing block (52) is fixedly connected to the lower surface of the electric push rod (51).

2. A metal tensile test fixture according to claim 1, characterized in that: The number of the support plate (2), the pulling mechanism (5) and the transmission mechanism (9) are all two and they are symmetrically arranged in an upper and lower manner. The number of the fixing rod (63), the wedge block (62), the cushion block (64) and the hole groove (7) are all two and they are symmetrically arranged.

3. A metal tensile test fixture according to claim 2, characterized in that: The upper surface of the first support rod (3) is fixedly connected to a top plate (4), one of the support plates (2) is fixedly connected to the upper surface of the base (1), and the other support plate (2) is slidably connected to the outside of the first support rod (3).

4. A metal tensile test fixture according to claim 1, characterized in that: The other end of the second conduit (83) is fixedly connected to the protective shell (91) located above, and the other end of the first conduit (82) is fixedly connected to the protective shell (91) located below.

5. The metal tensile test fixture according to claim 1, characterized in that: The second support rods (53) are multiple in number and distributed in a ring array; the top ends of the second support rods (53) are fixedly connected to the fixed blocks (52); and the bottom ends of the second support rods (53) are fixedly connected to the support plate (2) located above.

6. A metal tensile test fixture according to claim 3, characterized in that: The lower surface of the base (1) is fixedly connected to a support leg (10), and the first support rod (3) and the support leg (10) are both multiple in number and distributed in a rectangular array.

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