Tensile property detection machine

Abstract

The utility model discloses a tensile property detection machine which comprises a workbench and a clamping assembly, the clamping assembly comprises a fixed clamping unit and a movable clamping unit, and a cable to be detected is arranged between the fixed clamping unit and the movable clamping unit; a connecting unit is arranged at the bottom end of the movable clamping unit, the connecting unit comprises a guide sliding seat, a limiting sliding groove is formed in the top end of the guide sliding seat, and a connecting sliding block is slidably mounted in the limiting sliding groove; the movable clamping unit comprises a first fixing base, a first connecting base is arranged at the top end of the first fixing base, and a first adaptive pressing base is fixedly arranged at the top end of the first connecting base. According to the tensile property detection machine, the movable clamping unit is matched with the connecting unit, so that the tensile property data of the cable to be detected under the same pressure state in multiple directions can be simply obtained, and meanwhile, the tensile property detection mode of the whole device is simple and convenient to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of power cables, in particular to a tensile performance testing machine. Background Art

[0002] In the prior art, the tensile properties testing machine is a mechanical force testing machine used to perform mechanical properties tests such as static load, stretching, compression, bending, shearing, tearing, and peeling on various materials. It is suitable for various physical and mechanical properties tests of plastic plates, pipes, special-shaped materials, plastic films, rubber, wires and cables, steel, glass fibers, etc. It is an indispensable testing equipment for material development, physical property testing, teaching research, quality control, etc.

[0003] After searching, the Chinese patent application number 202222458705.0 discloses a power cable tensile performance testing machine, including a top plate, characterized in that: a pillar for supporting the top plate is fixedly connected to the left side of the bottom of the top plate, and a base for facilitating subsequent work is fixedly connected to the bottom of the pillar. The pillar is located at the outer wall between the top plate and the base and is movably connected with a support plate for driving the stretching of the power cable. The support plate and the base are fixedly connected in symmetrical and opposite directions with two cylinders for changing the direction of tension. The ends of the two cylinder piston rods are fixedly connected with two sliders for facilitating changing the direction of tension, and the two sliders are fixedly connected with hooks for fixing the position of the power cable.

[0004] The above patent has the following deficiencies: the device fixes the two ends of the power cable by two hooks, and works through two cylinders to push the two sliders to different positions, so as to obtain multiple sets of data under different adjustments for the tensile performance of the power cable, making the data more comprehensive; however, during use, the device is not convenient for adjusting the vertical pulling force of the two hooks on the power cable, and the sliding of the slider will only increase the pulling force of the hook on the power cable. The tensile performance data of the power cable in different directions can be obtained, but it is not convenient for determining the tensile performance data of the power cable in different directions under the same pulling force. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a tensile performance testing machine.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A tensile performance testing machine comprises: a workbench and a clamping assembly, wherein the clamping assembly comprises a fixed clamping unit and a movable clamping unit, and a cable to be tested is arranged between the fixed clamping unit and the movable clamping unit;

[0008] A connecting unit is provided at the bottom end of the mobile clamping unit, and the connecting unit includes a guide slide seat, a limiting slide groove is provided at the top end of the guide slide seat, and a connecting slider is slidably installed inside the limiting slide groove;

[0009] The mobile clamping unit includes a fixed seat, a connecting seat is arranged on the top of the fixed seat, an adapting pressure seat is fixedly arranged on the top of the connecting seat, a clamping stud is rotatably connected to the top of the adapting pressure seat, an outer wall of the clamping stud is threadedly connected to a connecting top plate, a plurality of connecting sliding columns are fixedly connected to the side of a lower surface of the connecting top plate, the connecting sliding columns penetrate the connecting seat and the adapting pressure seat, and are fixedly connected to the fixed seat.

[0010] As a further solution of the utility model: the fixed clamping unit includes a positioning base, a connecting base is fixedly installed on the top of the positioning base, and a fixing base 2 is fixedly connected to the top of the connecting base.

[0011] As a further solution of the utility model: a connecting seat 2 is arranged at the top of the fixing seat 2, an adapting pressure seat 2 is arranged at the top of the connecting seat 2, and a connecting pressure plate is fixedly connected to the top of the adapting pressure seat 2.

[0012] As a further solution of the utility model: a plurality of connecting slide posts 2 are fixedly connected to the top side of the connecting base, and the tops of the connecting slide posts 2 pass through the connecting seat 2 and the connecting pressure plate.

[0013] As a further solution of the utility model: the upper surface of the connecting pressure plate is fixedly connected with a rotating seat, the top end of the rotating seat is rotatably connected with a threaded column, and the outer wall of the threaded column is threadedly connected with a threaded sleeve.

[0014] As a further solution of the utility model: the top end of the threaded sleeve is fixedly connected to a connecting top plate 2, and both sides of the lower surface of the connecting top plate 2 are fixedly connected to guide connecting columns, and the bottom end of the guide connecting column passes through the connecting base and is fixedly connected to the positioning base.

[0015] As a further solution of the utility model: a connection detection body is arranged on the front side of the workbench, and a pressure detection sensor is installed on one side of the connection detection body.

[0016] Compared with the prior art, the utility model provides a tensile performance testing machine, which has the following beneficial effects:

[0017] 1. The tensile performance testing machine, through the cooperation of the mobile clamping unit and the connecting unit, enables the cable to be tested to obtain tensile performance data under the same pressure state in multiple directions in a relatively simple manner. At the same time, the overall device is relatively simple to perform tensile performance testing and is easy to operate.

[0018] 2. The tensile performance testing machine clamps the cable to be tested through a mobile clamping unit and a fixed clamping unit. On the basis of ensuring the integrity of the cable to be tested, it improves the stability of the clamping and ensures the stable progress of the test.

[0019] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. The utility model has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the overall assembly of the utility model;

[0021] Figure 2 It is a schematic diagram of a partially cutaway three-dimensional structure of the overall assembly of the utility model.

[0022] In the figure: 1. workbench; 2. supporting leg; 3. limiting slide rail; 4. transmission slide rail; 5. connecting slide groove; 6. transmission threaded rod; 7. connecting detection body; 8. rotating crank; 9. guide slide; 10. limiting slide groove; 11. fixed seat one; 12. connecting seat one; 13. adapting pressure seat one; 14. connecting slide column one; 15. connecting top plate one; 16. clamping stud; 17. cable to be detected; 18. positioning base; 19. connecting base; 20. fixed seat two; 21. connecting seat two; 22. adapting pressure seat two; 23. connecting pressure plate; 24. connecting slide column two; 25. supporting spring; 26. rotating seat; 27. threaded column; 28. threaded sleeve; 29. ​​connecting top plate two; 30. control crank; 31. guiding connecting column. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] A tensile properties testing machine, such as Figure 1 to Figure 2 As shown, it comprises: a workbench 1 and a clamping assembly, the clamping assembly comprises a fixed clamping unit and a movable clamping unit, and a cable to be detected 17 is arranged between the fixed clamping unit and the movable clamping unit.

[0025] The fixed clamping unit includes a positioning base 18 , which is fixedly mounted on one side of the top of the workbench 1 , and a connecting base 19 is fixedly mounted on the top of the positioning base 18 , and a fixing base 20 is integrally formed on the top of the connecting base 19 .

[0026] A connecting seat 21 is arranged at the top of the fixing seat 20 , and connecting ears are integrally formed on both sides of the connecting seat 21 . An adapting pressing seat 22 is arranged at the top of the connecting seat 21 , and a connecting pressing plate 23 is integrally formed on the top of the adapting pressing seat 22 .

[0027] The upper surface of the second fixing seat 20 , the upper and lower surfaces of the second connecting seat 21 and the lower surface of the second adapting pressing seat 22 are all provided with a clamping groove 1 , and the three cooperate to bend and clamp one end of the cable 17 to be detected.

[0028] A plurality of connecting slide columns 24 are fixedly connected to the top side of the connecting base 19, the top of the connecting slide column 24 passes through the connecting seat 21 and the connecting pressure plate 23, and the connecting seat 21 and the connecting pressure plate 23 slide up and down along the connecting slide column 24; a supporting spring 25 is provided at the bottom end of the outer wall of the connecting slide column 24, and the top of the supporting spring 25 is in contact with the lower surface of the connecting seat 21.

[0029] A rotating seat 26 is fixedly connected to the upper surface of the connecting pressing plate 23 , a threaded column 27 is rotatably connected to the top of the rotating seat 26 , and a threaded sleeve 28 is threadedly connected to the outer wall of the threaded column 27 .

[0030] A second connecting top plate 29 is welded to the top of the threaded sleeve 28 , and the top of the threaded column 27 passes through the second connecting top plate 29 and extends upward, with a control crank handle 30 fixedly mounted on the extended end.

[0031] Both sides of the lower surface of the second connecting top plate 29 are fixedly connected with guide connecting columns 31 , and the bottom ends of the guide connecting columns 31 penetrate the connecting ears of the second connecting seat 21 and the connecting base 19 , and are fixedly connected to the positioning base 18 .

[0032] The mobile clamping unit includes a fixed seat 11, a connecting seat 12 is arranged at the top of the fixed seat 11, an adapting pressure seat 13 is fixedly arranged at the top of the connecting seat 12, and the upper surface of the fixed seat 11, the upper and lower surfaces of the connecting seat 12 and the lower surface of the adapting pressure seat 13 are all provided with a clamping groove 2, and the three cooperate to bend and clamp the other end of the cable 17 to be detected.

[0033] The top of the adapter pressure seat 13 is rotatably connected with a clamping stud 16, the outer wall of the clamping stud 16 is threadedly connected with a connecting top plate 15, and the side of the lower surface of the connecting top plate 15 is fixedly connected with a plurality of connecting sliding columns 14, which penetrate the connecting seat 12 and the adapter pressure seat 13 and are fixedly connected to the fixed seat 11.

[0034] A connecting unit is provided at the bottom end of the mobile clamping unit, and the connecting unit includes a guide slide 9, and a limiting slide groove 10 is provided at the top of the guide slide 9. A connecting slider is slidably installed inside the limiting slide groove 10, and the connecting slider is fixedly installed on the lower surface of a fixed seat 11.

[0035] Limiting slide rails 3 are fixedly installed on both sides of the upper surface of the workbench 1, a transmission slide rail 4 is arranged between the two limiting slide rails 3, a connecting slide groove 5 is opened at the top of the transmission slide rail 4, a transmission threaded rod 6 is arranged inside the connecting slide groove 5, and the transmission threaded rod 6 is threadedly connected to the guide slide seat 9.

[0036] A connecting detection body 7 is arranged on the front of the workbench 1 , the top of which is rotatably connected to a transmission threaded rod 6 , a rotating crank 8 is fixedly mounted on one end of the transmission threaded rod 6 , and a pressure detection sensor is mounted on one side of the connecting detection body 7 .

[0037] A plurality of supporting legs 2 are fixedly mounted on the bottom end of the workbench 1 , a detection end of the pressure detection sensor is in contact with the workbench 1 , and a connection detection body 7 is fixed relative to the workbench 1 .

[0038] Working principle:

[0039] Please refer to Figure 1 to Figure 2 , the device is as Figure 1 Assemble as shown;

[0040] like Figure 1 As shown, after the cable 17 to be detected is clamped by the clamping assembly, the transmission threaded rod 6 is rotated clockwise by turning the crank 8, and the transmission threaded rod 6 drives the mobile clamping unit away from the fixed clamping unit through the guide slide 9;

[0041] When the value of the pressure detection sensor increases from zero, the stretched length of the cable 17 to be detected is zero. When the value of the pressure detection sensor continues to increase, the stretched length of the cable 17 to be detected continues to increase. The stretched length of the cable 17 to be detected is measured by the measuring instrument.

[0042] When it is necessary to maintain a certain pressure, the mobile clamping unit is driven by the connecting slider to slide in an arc inside the limiting slide groove 10, and the numerical changes of the pressure detection sensor and the changes in the stretching length of the cable to be detected 17 are recorded. The force direction of the cable to be detected 17 can be adjusted within the range of slight changes in the tension, thereby improving the predictability of the detection results.

[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A tensile properties testing machine, characterized in that: include: A workbench (1) and a clamping assembly, wherein the clamping assembly comprises a fixed clamping unit and a movable clamping unit, and a cable to be tested (17) is arranged between the fixed clamping unit and the movable clamping unit; A connecting unit is provided at the bottom end of the mobile clamping unit, and the connecting unit comprises a guide slide (9), a limiting slide groove (10) is provided at the top end of the guide slide (9), and a connecting slide block is slidably installed inside the limiting slide groove (10); The mobile clamping unit comprises a fixed seat (11), a connecting seat (12) is arranged at the top of the fixed seat (11), an adapting pressure seat (13) is fixedly arranged at the top of the connecting seat (12), a clamping stud (16) is rotatably connected to the top of the adapting pressure seat (13), the outer wall of the clamping stud (16) is threadedly connected to a connecting top plate (15), a plurality of connecting slide posts (14) are fixedly connected to the side of the lower surface of the connecting top plate (15), and the connecting slide posts (14) penetrate the connecting seat (12) and the adapting pressure seat (13), and are fixedly connected to the fixed seat (11).

2. A tensile properties testing machine according to claim 1, characterized in that: The fixed clamping unit comprises a positioning base (18), a connecting base (19) is fixedly mounted on the top of the positioning base (18), and a fixing base 2 (20) is fixedly connected to the top of the connecting base (19).

3. A tensile properties testing machine according to claim 2, characterized in that: The top of the second fixing seat (20) is provided with a second connecting seat (21), the top of the second connecting seat (21) is provided with a second adapting pressing seat (22), and the top of the second adapting pressing seat (22) is fixedly connected with a connecting pressing plate (23).

4. A tensile properties testing machine according to claim 2, characterized in that: A plurality of second connecting slide posts (24) are fixedly connected to the top side of the connecting base (19), and the top of the second connecting slide post (24) passes through the second connecting seat (21) and the connecting pressure plate (23).

5. A tensile properties testing machine according to claim 3, characterized in that: The upper surface of the connecting pressure plate (23) is fixedly connected to a rotating seat (26), the top end of the rotating seat (26) is rotatably connected to a threaded column (27), and the outer wall of the threaded column (27) is threadedly connected to a threaded sleeve (28).

6. A tensile properties testing machine according to claim 5, characterized in that: The top end of the threaded sleeve (28) is fixedly connected to a second connecting top plate (29), and both sides of the lower surface of the second connecting top plate (29) are fixedly connected to guide connecting columns (31), and the bottom end of the guide connecting column (31) passes through the connecting base (19) and is fixedly connected to the positioning base (18).

7. A tensile properties testing machine according to claim 1, characterized in that: A connection detection body (7) is arranged on the front of the workbench (1), and a pressure detection sensor is installed on one side of the connection detection body (7).

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