Shearing experiment device with temperature effect

Abstract

The utility model relates to a shearing experiment device with a temperature effect, and belongs to the field of metal bar shearing experiment equipment. The shearing experiment device with the temperature effect comprises a rack, a pressure cylinder, a shearing pressure head and a workpiece clamping seat, a workpiece clamping seat is arranged on the rack; a lifting seat is arranged on the rack above the workpiece clamping seat through a pressure cylinder; a shearing pressure head is arranged on the lifting seat through a pressure sensor; the workpiece clamping seat comprises a supporting body, a shearing sleeve and a supporting sleeve; a shearing receding opening is formed in the middle of the supporting body. A shearing sleeve is arranged in the shearing avoiding opening; and supporting sleeves are sleeved on the supporting body on two sides of the shearing sleeve. The shearing experiment device with the temperature effect can independently heat a workpiece, so that the problem of high energy consumption of an existing metal bar shearing performance test mode is solved, and the shearing experiment device is particularly suitable for the use requirement of a metal bar shearing performance test.

Description

Technical Field

[0001] The utility model relates to a shearing test device with temperature effect, belonging to the field of metal bar shearing test equipment. Background Art

[0002] In the field of metal bar shearing test technology, an experimental device with temperature effect is often used to detect the shearing performance of metal bars at various temperatures. Existing experimental devices, such as a universal testing machine with adjustable temperature and humidity disclosed in the utility model patent with authorization announcement number CN207249516U, can also achieve the purpose of testing the shearing performance of metal bars at various temperatures. However, it adopts a technical solution of placing the entire experimental device in the entire test box. When this solution is adopted, it will not only heat the test workpiece but also heat other test components, resulting in high energy consumption. Therefore, it is necessary to develop a new shearing test device to solve the above problems existing in the existing metal bar shearing performance test method. Summary of the invention

[0003] The utility model aims to provide a shearing test device with temperature effect which has compact structure and ingenious design and can solve the problem of high energy consumption in the existing metal bar shearing performance test method.

[0004] The technical solution of the utility model is:

[0005] A shearing experiment device with temperature effect, comprising a frame, a pressure cylinder, a shearing pressure head and a workpiece clamp; the frame is equipped with a workpiece clamp; a lifting seat is installed on the frame above the workpiece clamp through a pressure cylinder; the shearing pressure head is installed on the lifting seat through a pressure sensor; it is characterized in that: the workpiece clamp comprises a supporting body, a shearing sleeve and a supporting sleeve; a shearing avoidance opening is arranged in the middle of the supporting body; a shearing sleeve is arranged in the shearing avoidance opening; supporting sleeves are mounted on the supporting body on both sides of the shearing sleeve; a heating coil is arranged on the supporting body outside the supporting sleeve.

[0006] The support body is formed by buckling two groups of support halves; connecting ears are arranged on both sides of the buckled halves facing each other; the two groups of support halves are fixedly connected by connecting ears and locking bolts; the lower ends of the support halves are equipped with positioning ears; the support body is connected to the frame through the positioning ears and anchor bolts.

[0007] One end of the supporting sleeve is provided with a limiting flange.

[0008] The shear sleeve is provided with a temperature measuring probe.

[0009] An insulating layer is provided on the supporting body outside the heating coil.

[0010] The advantages of the utility model are:

[0011] The shear test device with temperature effect has a compact structure and ingenious design, and can heat the workpiece independently, thereby solving the problem of high energy consumption in the existing metal bar shear performance test method, and is particularly suitable for the needs of metal bar shear performance test. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 It is a structural schematic diagram of a workpiece clamp of the utility model;

[0014] Figure 3 for Figure 2 Schematic diagram of the left view structure;

[0015] Figure 4 for Figure 3 Schematic diagram of the structure in the middle AA direction;

[0016] Figure 5 This is a schematic diagram of the structure of the shearing head of the utility model;

[0017] Figure 6 This is a schematic diagram of the structure of the shear sleeve and the support sleeve of the utility model;

[0018] Figure 7 It is a working schematic diagram of the utility model.

[0019] In the figure: 1. frame; 2. workpiece clamp; 3. pressure cylinder; 4. lifting seat; 5. shearing head; 6. supporting body; 7. shearing avoidance; 8. shearing sleeve; 9. supporting sleeve; 10. heating coil; 11. supporting half body; 12. connecting ear; 13. positioning ear; 14. limiting flange; 15. temperature measuring probe; 16. arc pressure port; 17. control module. DETAILED DESCRIPTION

[0020] The shearing test device with temperature effect includes a frame 1, a pressure cylinder 3, a shearing head 5 and a workpiece holder 2 (see the attached manual). Figure 1 ).

[0021] The frame 1 is equipped with a workpiece holder 2 (see the appendix of the manual). Figure 1 The workpiece holder 2 includes a support body 6, a shear sleeve 8 and a support sleeve 9 (see the attached manual). Figure 2 , 3 and 4).

[0022] The support body 6 is formed by buckling two sets of support half bodies 11 (see the attached manual). Figure 3); the two sides of the half bodies are provided with connecting ears 12 facing each other; the two groups of supporting half bodies 11 are fixedly connected by connecting ears 12 and locking bolts; the lower end of the supporting half body 11 is provided with a positioning ear 13; the supporting body 6 is connected to the frame 1 through the positioning ear 13 and the anchor bolt. The purpose of arranging the supporting body 6 in this way is to enable the supporting sleeve 9, the heating coil 10 and other components to be conveniently and quickly installed inside it during operation.

[0023] A shearing avoidance opening 7 is provided in the middle of the support body 6; a shearing sleeve 8 is provided in the shearing avoidance opening 7; support sleeves 9 are sleeved on the support body 6 on both sides of the shearing sleeve 8 (see the attached manual for details). Figure 4 ); A limiting flange 14 is provided at one end of the support sleeve 9 (see the attached manual Figure 6 The purpose of setting the limiting flange 14 is to locate the installation position of the support sleeve 9 by fitting the limiting flange 14 of the support sleeve 9 with the outer surface of the support body 6 during assembly, thereby preventing the support sleeve 9 from deviating from the installation position during installation.

[0024] A heating coil 10 is arranged on the support body 6 outside the support sleeve 9 (see the attached Figure 4 ). A control module 17 is installed inside the support body 6; the control module 17 is electrically connected to the heating coil 10. When working, under the control of the control module 17, the heating coil 10 can heat the support sleeve 9 and the workpiece (metal bar) inside it.

[0025] An insulating layer (not shown in the drawings of the specification) is provided on the support body 6 outside the heating coil 10. The provision of the insulating layer can reduce the energy consumption transferred from the heating coil 10 to the support body 6, thereby achieving the purpose of energy saving.

[0026] The shear sleeve 8 is provided with a temperature probe 15 (see the appendix of the manual). Figure 6 ). During operation, the temperature measuring probe 15 can measure the temperature of the workpiece (metal bar) inside the shear sleeve 8, so that the operator can operate the shear test device after understanding the state of the workpiece (metal bar).

[0027] A lifting seat 4 is mounted on the frame 1 above the workpiece clamp 2 through a pressure cylinder 3; a shearing pressure head 5 is mounted on the lifting seat 4 through a pressure sensor (see the attached manual). Figure 1 ); When the pressure cylinder 3 is in motion, the shearing head 5 can be driven to move up and down through the lifting seat 4. When the shearing head 5 is subjected to force, the pressure sensor can record its force condition.

[0028] The lower end of the shearing pressure head 5 is provided with an arc-shaped pressure opening 16 (see the appendix of the specification). Figure 5). The curvature of the arc-shaped pressure opening 16 is consistent with the curvature of the circumferential surface of the shear sleeve 8. The purpose of such a setting is to enable the shearing sleeve 8 to be pressed after the arc-shaped pressure opening 16 fits with the outer surface of the shear sleeve 8 during the downward movement of the shearing pressure head 5 during operation, so that the shearing sleeve 8 can complete the purpose of shearing the workpiece with the cooperation of the supporting sleeve 9.

[0029] When the shear test device with temperature effect is in operation, firstly, the shear sleeve 8 is held and placed inside the shear avoidance port 7, so that the two ends of the shear sleeve 8 correspond to the ends of the support sleeve 9, and then the workpiece (metal bar) to be tested is inserted from one end of the support sleeve 9 and inserted out from the outer end of the other set of support sleeves 9.

[0030] After the above work is completed, the heating coil 10 is started to heat the workpiece (metal bar) through the support sleeve 9. When the temperature probe 15 detects that the workpiece (metal bar) has risen to the detection set temperature, the lifting seat 4 drives the shearing head 5 to move down through the lifting seat 4, and finally squeezes the shearing sleeve 8 to complete the shearing action of the workpiece with the cooperation of the support sleeve 9. In this process, the pressure sensor on the lifting seat 4 can record the force of the shearing head 5, and the force is the test result. At this point, the shearing test device has completed all the experimental work, and then the workpiece that has been tested is removed, and the experimental device can enter the next working cycle.

[0031] The shear test device with temperature effect has a compact structure and ingenious design, and can heat the workpiece independently, thereby solving the problem of high energy consumption in the existing metal bar shear performance test method, and is particularly suitable for the needs of metal bar shear performance test.

Claims

1. A shearing test device with temperature effect, comprising a frame (1), a pressure cylinder (3), a shearing head (5) and a workpiece clamp (2); the frame (1) is provided with the workpiece clamp (2); a lifting seat (4) is provided on the frame (1) above the workpiece clamp (2) via the pressure cylinder (3); the lifting seat (4) is provided with the shearing head (5) via a pressure sensor; the characteristics are as follows: The workpiece clamp (2) comprises a support body (6), a shear sleeve (8) and a support sleeve (9); a shear avoidance opening (7) is provided in the middle of the support body (6); a shear sleeve (8) is provided in the shear avoidance opening (7); support sleeves (9) are sleeved on the support body (6) on both sides of the shear sleeve (8); and a heating coil (10) is provided on the support body (6) outside the support sleeve (9).

2. A shear test device with temperature effect according to claim 1, characterized in that: The support body (6) is formed by buckling two groups of support halves (11); connecting ears (12) are arranged on both sides of the buckled halves facing each other; the two groups of support halves (11) are fixedly connected by connecting ears (12) and locking bolts; the lower ends of the support halves (11) are provided with positioning ears (13); the support body (6) is connected to the frame (1) by the positioning ears (13) and anchor bolts.

3. A shear test device with temperature effect according to claim 1, characterized in that: A limiting flange (14) is provided at one end of the supporting sleeve (9).

4. A shear test device with temperature effect according to claim 1, characterized in that: The shear sleeve (8) is provided with a temperature measuring probe (15).

5. A shear test device with temperature effect according to claim 1, characterized in that: An insulating layer is provided on the supporting body (6) outside the heating coil (10).

6. A shear test device with temperature effect according to claim 1, characterized in that: The lower end of the shearing pressure head (5) is provided with an arc-shaped pressure opening (16).

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