CN214427137U

CN214427137U - Tensile testing machine is used in laboratory

Info

Publication number: CN214427137U
Application number: CN202120252782.3U
Authority: CN
Inventors: 高延安; 徐彤
Original assignee: Huaiyin Institute of Technology
Current assignee: Huaiyin Institute of Technology
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2021-10-19
Anticipated expiration: 2031-01-29

Abstract

The laboratory tensile testing machine according to the utility model comprises a base; a fixing frame, which is fixedly installed on the top of the base; a hydraulic cylinder, which is fixed by the hydraulic cylinder Installed on the fixed frame; two installation plates, the two installation plates are respectively fixed on the output shaft and the base of the hydraulic cylinder, and the two installation plates correspond to each other; two installation grooves, two The installation groove is symmetrically opened on the installation plate; the threaded rod is rotatably installed in the installation groove; the sliding block is slidably installed in the installation groove, and the sliding block and the sliding block are slidably installed in the installation groove. A threaded rod is threadedly connected; a sliding plate, the sliding plate is fixedly installed on the slider; two rotating rods, the two rotating rods are symmetrically rotated and installed on the sliding plate, the laboratory of the present utility model The tensile testing machine has the advantages of convenient use, firm fixation and improved test accuracy.

Description

Tensile testing machine is used in laboratory

Technical Field

The utility model relates to a tensile testing machine is used in the laboratory especially relates to a convenient to use, fixed firm, improve tensile testing machine is used in laboratory of experimental precision.

Background

The tensile test should be supplemented with the rupture test. The tension test has the effect of ensuring the sealing quality, is a mandatory test method, and needs to carry out the tension test to detect the strength of some metal or nonmetal materials in the production process.

However, in the prior art, the tensile testing machine is not firmly fixed on the product to be tested, and when tensile force is applied to the product, the product is easy to slip or slip, so that the testing precision is reduced.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims at providing a tensile testing machine is used in laboratory solves current tensile testing machine and fixes insecure to the product that awaits measuring, when exerting the pulling force to it, appears skidding or the phenomenon of slippage easily, reduces the problem of experimental precision.

The technical scheme is as follows: the utility model discloses a tensile testing machine for laboratory, which comprises a base; the fixing frame is fixedly arranged at the top of the base; further comprising: the hydraulic cylinder is fixedly arranged on the fixed frame; the two mounting plates are fixedly mounted on the output shaft of the hydraulic cylinder and the base respectively and correspond to each other; the two mounting grooves are symmetrically formed in the mounting plate; the threaded rod is rotatably installed in the installation groove; the sliding block is slidably mounted in the mounting groove and is in threaded connection with the threaded rod; the sliding plate is fixedly arranged on the sliding block; the two rotating rods are symmetrically and rotatably arranged on the sliding plate; the clamping plates are rotatably arranged on the two rotating rods; and the non-slip mat is fixedly arranged on the clamping plate.

Preferably, two sections of threads are arranged on the threaded rod, and the thread turning directions of the two sections of threads are opposite.

Preferably, two sliding grooves are symmetrically formed in the sliding plate, sliding rods are fixedly mounted in the sliding grooves, limiting blocks are slidably mounted on the sliding rods, hinge rods are rotatably mounted on the limiting blocks, and the hinge rods are rotatably connected with the corresponding rotating rods.

Preferably, the sliding rod is sleeved with a spring in a sliding mode, and two ends of the spring are fixedly connected with the inner wall of the sliding groove and the limiting block respectively.

Preferably, a motor is fixedly mounted on the mounting plate, and an output shaft of the motor is fixedly connected with the threaded rod.

Preferably, the clamping plate is fixedly provided with a hinge block, and the hinge block is rotatably connected with the rotating rod.

Has the advantages that: compared with the prior art, the utility model has the advantages of as follows: 1. the product to be detected can be clamped and fixed; 2. after the product is fixed, when the product is about to slip, the two clamping plates can move close to each other, so that the product is firmly fixed; 3. the hydraulic cylinder is fixedly arranged on the fixing frame, and a tensile test can be carried out on a symmetrical product.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a perspective view of the clamping plate shown in fig. 1.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings.

In the figure: 1. a base; 2. a fixed mount; 3. a hydraulic cylinder; 4. mounting a plate; 5. mounting grooves; 6. a threaded rod; 7. a slider; 8. a sliding plate; 9. rotating the rod; 10. a clamping plate; 11. a non-slip mat; 12. a sliding groove; 13. a slide bar; 14. a limiting block; 15. a hinged lever; 16. a spring.

Referring to fig. 1 to fig. 2, the laboratory tensile testing machine of the present embodiment includes: a base 1; the fixing frame 2 is fixedly arranged at the top of the base 1; further comprising: the hydraulic cylinder 3 is fixedly arranged on the fixed frame 2; the two mounting plates 4 are respectively and fixedly mounted on the output shaft of the hydraulic cylinder 3 and the base 1, and the two mounting plates 4 correspond to each other; the two mounting grooves 5 are symmetrically formed in the mounting plate 4; the threaded rod 6 is rotatably arranged in the mounting groove 5; the sliding block 7 is arranged in the mounting groove 5 in a sliding mode, and the sliding block 7 is in threaded connection with the threaded rod 6; the sliding plate 8, the sliding plate 8 is fixedly installed on the slide block 7; the two rotating rods 9 are symmetrically and rotatably arranged on the sliding plate 8; the clamping plate 10 is rotatably arranged on the two rotating rods 9; and the non-slip mat 11 is fixedly arranged on the clamping plate 10.

Two sections of threads are arranged on the threaded rod 6, and the thread turning directions of the two sections of threads are opposite. Two sliding grooves 12 are symmetrically formed in the sliding plate 8, sliding rods 13 are fixedly mounted in the sliding grooves 12, limiting blocks 14 are slidably mounted on the sliding rods 13, hinge rods 15 are rotatably mounted on the limiting blocks 14, and the hinge rods 15 are rotatably connected with the corresponding rotating rods 9. The sliding rod 13 is slidably sleeved with a spring 16, and two ends of the spring 16 are respectively fixedly connected with the inner wall of the sliding groove 12 and the limiting block 14. The mounting plate 4 is fixedly provided with a motor, and an output shaft of the motor is fixedly connected with the threaded rod 6. The clamping plate 10 is fixedly provided with a hinge block which is rotatably connected with the rotating rod 9.

The working principle of the laboratory tensile testing machine is as follows: when the clamping device is used, a product is placed between the two clamping plates 10, the motor is started, the motor drives the threaded rod 6 to rotate, the two sliding blocks 7 move close to each other under the action of the two threads with opposite rotating directions, the sliding blocks 7 drive the sliding plates 8 to move, and the product can be clamped through the clamping plates 10; starting hydraulic cylinder 3 and carrying out the tensile test, under the pulling force effect, when the product has the power of slippage, under the frictional action of slipmat 11, there is downward and pivoted power in grip block 10, can make grip block 10 be close to each other and extrude the product, makes the product fixed firm.

According to the tensile testing machine for the laboratory, the threaded rod 6 is rotatably installed in the installation groove 5, the sliding plate 8 is fixedly installed on the sliding block 7, and the clamping plate 10 is rotatably installed on the two rotating rods 9 and can clamp and fix a product to be tested; the two rotating rods 9 are symmetrically and rotatably arranged on the sliding plate 8, so that after a product is fixed, when the product is expected to slip, the two clamping plates 10 can move close to each other, and the product is firmly fixed; the hydraulic cylinder 3 is fixedly arranged on the fixing frame 2, and can be used for carrying out a tensile test on a symmetrical product.

Claims

1. A laboratory tensile testing machine comprises a base (1); the fixing frame (2), the said fixing frame (2) is fixedly mounted on the top of the said base (1); it is characterized by also comprising:

the hydraulic cylinder (3), the said hydraulic cylinder (3) is fixedly mounted on said fixed mount (2);

the two mounting plates (4) are respectively and fixedly mounted on the output shaft of the hydraulic cylinder (3) and the base (1), and the two mounting plates (4) correspond to each other;

the two mounting grooves (5) are symmetrically formed in the mounting plate (4);

the threaded rod (6), the said threaded rod (6) is installed in the said mounting groove (5) rotatably;

the sliding block (7) is slidably mounted in the mounting groove (5), and the sliding block (7) is in threaded connection with the threaded rod (6);

the sliding plate (8), the said sliding plate (8) is fixedly mounted on the said slide block (7);

the two rotating rods (9), the two rotating rods (9) are symmetrically and rotatably arranged on the sliding plate (8);

the clamping plates (10) are rotatably arranged on the two rotating rods (9);

the anti-skid pad (11) is fixedly arranged on the clamping plate (10).

2. The laboratory tensile testing machine according to claim 1, wherein the threaded rod (6) is provided with two threads, and the thread directions of the two threads are opposite.

3. The laboratory tensile testing machine according to claim 1, wherein the sliding plate (8) is symmetrically provided with two sliding grooves (12), a sliding rod (13) is fixedly installed in each sliding groove (12), a limiting block (14) is slidably installed on each sliding rod (13), a hinge rod (15) is rotatably installed on each limiting block (14), and each hinge rod (15) is rotatably connected with the corresponding rotating rod (9).

4. The laboratory tensile testing machine according to claim 3, wherein a spring (16) is slidably sleeved on the sliding rod (13), and two ends of the spring (16) are fixedly connected with the inner wall of the sliding groove (12) and the limiting block (14) respectively.

5. The laboratory tensile testing machine according to claim 1, wherein a motor is fixedly mounted on the mounting plate (4), and an output shaft of the motor is fixedly connected with the threaded rod (6).

6. The laboratory tensile testing machine according to claim 1, wherein a hinge block is fixedly mounted on the clamping plate (10), and the hinge block is rotatably connected with the rotating rod (9).