Nondestructive mechanical testing device for seamless tube

Abstract

The utility model provides a seamless tube nondestructive mechanical testing device, which belongs to the technical field of seamless tube detection, and comprises a portable mechanical property tester, a debugging mechanism, a testing fixing plate, a steel tube protective sleeve, a slip, a locking sleeve and a dismounting auxiliary ring, a tested piece is sleeved in the steel tube protective sleeve, the slip is sleeved on the outer side of the steel tube protective sleeve, and the locking sleeve is sleeved on the outer side of the steel tube protective sleeve. The outer side of the slip is sleeved with a locking sleeve, a test fixing plate is arranged at the end of the tested piece and connected with the locking sleeve, the outer side of the slip gradually inclines outwards from the end close to the tested piece to the end away from the tested piece to form an inclined face, and the locking sleeve provides longitudinal and axial pressure for the tested piece through the slip. The testing device can be integrally and stably fixed on the tested piece by matching with a steel pipe protective sleeve made of a rubber material, so that the portable mechanical property tester can be quickly fixed at the end part of the tested piece, and meanwhile, indentations can be effectively avoided, and subsequent sales cannot be influenced while a mechanical test is convenient to carry out.

Description

Technical Field

[0001] This utility model relates to the field of seamless tube testing technology, and in particular to a non-destructive mechanical testing device for seamless tubes. Background Technology

[0002] Precise mechanical testing of seamless tubes is a crucial step in evaluating their material properties and reliability. Test indicators include tensile strength, yield strength, and elongation. The specimen is stretched to fracture using a tensile testing machine, and the load-displacement curve is recorded to accurately calculate the material's plastic deformation and load-bearing capacity under stress.

[0003] Seamless pipes require end fixing during testing, which can cause scratches and indentations on the pipe wall. Some manufacturers require that the pipes not be damaged or scratched during mechanical property testing to ensure the subsequent sale of the tested parts. Therefore, improving the fixing method of the mechanical testing device on the seamless pipe has become an urgent problem to be solved. Utility Model Content

[0004] In order to solve the above problems, the present invention provides a solution to address the aforementioned issues in the prior art.

[0005] According to a first aspect of the present invention, a non-destructive mechanical testing device for seamless tubes is provided, comprising:

[0006] The steel pipe protective sleeve has the test piece inside and a clamping sleeve outside. A locking sleeve is also fitted outside the clamping sleeve. A test fixing plate is provided at the end of the test piece. The test fixing plate is connected to the locking sleeve. A waist-shaped hole is provided through the end face of the test fixing plate.

[0007] The debugging mechanism includes a mounting block, a sliding block slidably connected to the mounting block, a mounting plate fixedly connected to the sliding block, and a portable mechanical property tester fixedly connected to the mounting plate. The testing end of the portable mechanical property tester passes through the debugging mechanism and is set on the test piece through an oblong hole.

[0008] As a further embodiment of this utility model: the locking sleeve is an overall ring structure, and bolt holes are evenly distributed in a ring on the locking sleeve. The test fixing plate is symmetrically distributed and has connecting through holes. A connecting bolt is provided between the locking sleeve and the test fixing plate. The connecting bolt passes through the connecting through hole on the test fixing plate and is threadedly connected to the bolt hole on the locking sleeve.

[0009] As a further embodiment of this utility model, the steel pipe protective sleeve is made of rubber.

[0010] As a further embodiment of this utility model: the overall structure of the clapper is a ring-shaped structure, and the outer side of the clapper gradually slopes outward from the end closest to the test piece to the end furthest from the test piece to form a slope.

[0011] As a further embodiment of this utility model: an adjustment slot is provided through the end face of the mounting block, slide rails are symmetrically arranged and fixedly connected on the mounting block, sliders are symmetrically arranged and fixedly connected to the bottom face of the sliding block, the sliding block is slidably arranged on the slide rail through the sliders, and adjustment components are fixedly connected to the side end face of the sliding block.

[0012] As a further embodiment of this utility model: symmetrically arranged and fixedly connected to the side end face of the mounting block are adjustment side plates, and a threaded rod is rotatably arranged between the two adjustment side plates. The adjustment component is sleeved and threadedly connected to the threaded rod. Rotation handles are fixedly connected to both ends of the threaded rod. Adjustment through slots are opened through the sliding block and the mounting plate.

[0013] As a further embodiment of this utility model: a disassembly auxiliary ring is provided at the end of the locking sleeve away from the test fixing plate. The disassembly auxiliary ring is sleeved on the test piece. The disassembly auxiliary ring includes an auxiliary ring body. An inner ring is coaxially fixedly connected to one end face of the auxiliary ring body. The inner ring abuts against the collet.

[0014] As a further embodiment of this utility model: the auxiliary ring body is provided with auxiliary ring through holes evenly distributed in a ring, and a second connecting bolt is provided between the auxiliary ring body and the locking sleeve. The second connecting bolt passes through the auxiliary ring through hole on the auxiliary ring body and is threadedly connected to the bolt hole on the locking sleeve.

[0015] The beneficial effects of this utility model are:

[0016] 1. The outer side of the clamp of this utility model gradually slopes outward from the end closest to the test piece to the end furthest from the test piece to form a slope. The locking sleeve provides longitudinal and axial pressure to the test piece through the clamp. With the help of the rubber steel pipe protective sleeve, the entire testing device can be firmly fixed to the test piece. While quickly fixing the portable mechanical performance tester to the end of the test piece, it can effectively avoid the formation of indentations. It is convenient for mechanical testing and will not affect the subsequent sale of the test piece.

[0017] 2. This utility model allows for the selection of different sized clamps according to the different sizes of the test pieces. By rotating the handle, the sliding block can be moved to slide on the mounting block, thereby allowing the position of the detection end of the portable mechanical property tester to be adjusted according to different test pieces. This facilitates the testing of test pieces of different sizes and types, improving the versatility and practicality of the device. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of a non-destructive mechanical testing device for seamless tubes according to the present invention;

[0019] Figure 2This is a three-dimensional structural diagram of the debugging mechanism of a non-destructive mechanical testing device for seamless tubes according to the present invention;

[0020] Figure 3 This is a three-dimensional structural diagram of the locking sleeve of a non-destructive mechanical testing device for seamless tubes according to the present invention;

[0021] Figure 4 This is a three-dimensional structural diagram of the steel pipe protective sleeve of a seamless pipe non-destructive mechanical testing device provided by this utility model;

[0022] Figure 5 This is a three-dimensional structural diagram of the chuck of a non-destructive mechanical testing device for seamless tubes provided by this utility model;

[0023] Figure 6 This is a three-dimensional structural diagram of the test fixing plate of a non-destructive mechanical testing device for seamless tubes according to the present invention;

[0024] Figure 7 This is a three-dimensional structural diagram of the disassembly auxiliary ring of a seamless tube non-destructive mechanical testing device provided by this utility model.

[0025] List of reference numerals in the attached diagram:

[0026] 1. Portable mechanical property tester; 2. Debugging mechanism; 21. Mounting block; 22. Debugging through slot one; 23. Slide rail; 24. Debugging side plate; 25. Rotating handle; 26. Threaded rod; 27. Debugging component; 28. Sliding block; 29. ​​Mounting plate; 210. Debugging through slot two; 3. Test fixing plate; 31. Waist-shaped hole; 4. Steel pipe protective sleeve; 5. Clamping slip; 6. Locking sleeve; 61. Bolt hole; 7. Connecting bolt one; 8. Disassembly auxiliary ring; 81. Auxiliary ring body; 82. Inner ring; 83. Auxiliary ring through hole; 9. Connecting bolt two; 10. Test piece. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0028] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Reference Figures 1 to 7 This utility model provides a non-destructive mechanical testing device for seamless pipes, comprising: a debugging mechanism 2 and a steel pipe protective sleeve 4. The test piece 10 is fitted inside the steel pipe protective sleeve 4, and a clamp 5 is fitted outside the steel pipe protective sleeve 4. A locking sleeve 6 is fitted outside the clamp 5. A test fixing plate 3 is provided at the end of the test piece 10. The test fixing plate 3 is connected to the locking sleeve 6. A waist-shaped hole 31 is provided through the end face of the test fixing plate 3. The debugging mechanism 2 includes a mounting block 21. A sliding block 28 is slidably connected to the mounting block 21. A mounting plate 29 is fixedly connected to the sliding block 28. A portable mechanical performance tester 1 is fixedly connected to the mounting plate 29. The detection end of the portable mechanical performance tester 1 passes through the debugging mechanism 2 and is set on the test piece 10 through the waist-shaped hole 31.

[0031] The locking sleeve 6 is a ring-shaped structure. Bolt holes 61 are evenly distributed in a ring on the locking sleeve 6. The test fixing plate 3 is symmetrically distributed and has connecting through holes. A connecting bolt 7 is provided between the locking sleeve 6 and the test fixing plate 3. The connecting bolt 7 passes through the connecting through hole on the test fixing plate 3 and is threaded to the bolt hole 61 on the locking sleeve 6.

[0032] The steel pipe protective sleeve 4 is made of rubber. The clamp 5 has an overall ring structure. The outer side of the clamp 5 gradually slopes outward from the end closest to the test piece 10 to the end furthest from the test piece 10 to form a slope. Since the clamp 5 is fitted with a locking sleeve 6, the test fixing plate 3 and the locking sleeve 6 are connected by a connecting bolt 7. The locking sleeve 6 provides longitudinal and axial pressure to the test piece 10 through the clamp 5. With the steel pipe protective sleeve 4, the test device can be firmly fixed to the test piece 10. In specific use, different sizes of clamps 5 can be selected according to the different sizes of the test piece 10.

[0033] A first debugging slot 22 is provided through the end face of the mounting block 21. A slide rail 23 is symmetrically arranged and fixedly connected to the mounting block 21. A slider is symmetrically arranged and fixedly connected to the bottom face of the sliding block 28. The sliding block 28 is slidably arranged on the slide rail 23 via the slider. A debugging component 27 is fixedly connected to the side face of the sliding block 28. Debugging side plates 24 are symmetrically arranged and fixedly connected to the side face of the mounting block 21. A threaded rod 26 is rotatably arranged between the two debugging side plates 24. The debugging component 27 is sleeved and threadedly connected to the threaded rod 26. Rotating handles 25 are fixedly connected to both ends of the threaded rod 26. A second debugging slot 210 is provided through the sliding block 28 and the mounting plate 29. The detection end of the portable mechanical property tester 1 passes through the debugging mechanism 2 through the first debugging slot 22 and the second debugging slot 210. In some specific embodiments, the extension direction of the threaded rod 26 is parallel to the sliding direction of the sliding block 28.

[0034] In some specific implementations, the portable mechanical property tester 1 is equipped with various indenters, such as spherical indenters, Vickers indenters, and Knoop indenters, to perform various mechanical property tests on the specimens.

[0035] A disassembly auxiliary ring 8 is provided at the end of the locking sleeve 6 away from the test fixing plate 3. The disassembly auxiliary ring 8 is sleeved on the test piece 10. The disassembly auxiliary ring 8 includes an auxiliary ring body 81. An inner ring 82 is coaxially fixedly connected to one end face of the auxiliary ring body 81. The inner ring 82 abuts against the clamp 5. Auxiliary ring through holes 83 are evenly distributed in a ring on the auxiliary ring body 81. A connecting bolt 2 9 is provided between the auxiliary ring body 81 and the locking sleeve 6. The connecting bolt 2 9 passes through the auxiliary ring through holes 83 on the auxiliary ring body 81 and is threadedly connected to the bolt holes 61 on the locking sleeve 6. In some specific embodiments, the test fixing plate 3 is provided with 4 connecting through holes. The auxiliary ring through hole 83 has 4 holes, and the bolt hole 61 has 8 holes. Four bolt holes 61 correspond to the connecting through hole, and the other four bolt holes 61 correspond to the auxiliary ring through hole 83. When it is necessary to remove the test component from the test piece 10, the portable mechanical performance tester 1, the debugging mechanism 2 and the test fixing plate 3 can be removed by unscrewing the connecting bolt 1 7. The locking sleeve 6 and the clamp 5 are tightly engaged and relatively stable during disassembly. Tightening the connecting bolt 2 9 can push the clamp 5 out of the locking sleeve 6 through the inner ring 82 of the auxiliary ring body 81, thereby facilitating the disassembly between the locking sleeve 6 and the clamp 5 and making the disassembly process more time-saving and labor-saving.

[0036] Workflow: First, place the steel pipe protective sleeve 4 and disassembly auxiliary ring 8 onto the test piece 10. Then, place the clamp 5 on the outside of the steel pipe protective sleeve 4, followed by the locking sleeve 6 on the outside of the clamp 5. Finally, connect the test fixing plate 3 to the locking sleeve 6 using connecting bolt 7. Because the outer side of the clamp 5 gradually slopes outwards from the end closest to the test piece 10 to the end furthest from the test piece 10, forming an inclined surface, the locking sleeve 6 provides longitudinal and axial pressure to the test piece 10 through the clamp 5. Combined with the rubber steel pipe protective sleeve 4, the entire testing device can be securely fixed to the test piece 10. The portable mechanical property tester 1 can be quickly fixed to the end of the test piece 10 while effectively avoiding the formation of indentations. It facilitates mechanical testing without affecting the subsequent sales of the test piece 10. At the same time, different sizes of clamps 5 can be selected according to the different sizes of the test piece 10. By rotating the rotating handle 25, the sliding block 28 can be moved to slide on the mounting block 21, so that the position of the testing end of the portable mechanical property tester 1 can be adjusted according to different test pieces 10, which is convenient for testing test pieces 10 of different sizes and types, and improves the versatility and practicality of the device.

[0037] It should be noted that not all steps and modules in the above processes and system structure diagrams are mandatory; some steps or modules can be omitted as needed. The execution order of each step is not fixed and can be adjusted as required. The system structure described in the above embodiments can be a physical structure or a logical structure. That is, some modules may be implemented by the same physical entity, or some modules may be implemented by multiple physical entities, or they may be jointly implemented by certain components in multiple independent devices.

[0038] In the above embodiments, the hardware modules can be implemented mechanically or electrically. The present invention has been described and illustrated in detail above with reference to the accompanying drawings and preferred embodiments. However, the present invention is not limited to these disclosed embodiments. Based on the above embodiments, those skilled in the art will understand that more embodiments of the present invention can be obtained by combining the code review methods in the different embodiments described above, and these embodiments are also within the protection scope of the present invention.

Claims

1. A seamless tube non-destructive mechanical testing apparatus, characterized by, include: A steel pipe protective sleeve (4) is provided inside the steel pipe protective sleeve (4), a test piece (10) is provided inside the steel pipe protective sleeve (4), a slip (5) is provided outside the steel pipe protective sleeve (4), a locking sleeve (6) is provided outside the slip (5), a test fixing plate (3) is provided at the end of the test piece (10), the test fixing plate (3) is connected to the locking sleeve (6), and a waist-shaped hole (31) is provided through the end face of the test fixing plate (3); The debugging mechanism (2) includes a mounting block (21), a sliding block (28) is slidably connected to the mounting block (21), a mounting plate (29) is fixedly connected to the sliding block (28), and a portable mechanical performance tester (1) is fixedly connected to the mounting plate (29). The detection end of the portable mechanical performance tester (1) passes through the debugging mechanism (2) and is set on the test piece (10) through the waist-shaped hole (31).

2. A seamless tube non-destructive mechanical testing device according to claim 1, wherein, The locking sleeve (6) is a ring-shaped structure. Bolt holes (61) are evenly distributed in a ring on the locking sleeve (6). The test fixing plate (3) is symmetrically distributed and has connecting through holes. A connecting bolt (7) is provided between the locking sleeve (6) and the test fixing plate (3). The connecting bolt (7) passes through the connecting through hole on the test fixing plate (3) and is threadedly connected to the bolt hole (61) on the locking sleeve (6).

3. A device for non-destructive mechanical testing of a seamless tube according to claim 1, characterized in that, The steel pipe protective sleeve (4) is made of rubber.

4. A seamless tube non-destructive mechanical testing apparatus according to claim 1, wherein, The overall structure of the clapper (5) is a ring structure. The outer side of the clapper (5) gradually slopes outward from the end closest to the test piece (10) to the end furthest from the test piece (10) to form a slope.

5. A seamless tube non-destructive mechanical testing device according to claim 1, wherein, An adjustment slot (22) is provided through the end face of the mounting block (21). A slide rail (23) is symmetrically arranged and fixedly connected on the mounting block (21). A slider is symmetrically arranged and fixedly connected on the bottom face of the sliding block (28). The sliding block (28) is slidably arranged on the slide rail (23) through the slider. An adjustment component (27) is fixedly connected on the side end face of the sliding block (28).

6. A non-destructive mechanical testing apparatus for seamless pipes according to claim 5, characterized in that, The mounting block (21) has symmetrically arranged and fixedly connected debugging side plates (24) on its side end face. A threaded rod (26) is rotatably arranged between the two debugging side plates (24). The debugging part (27) is sleeved and threadedly connected to the threaded rod (26). Rotating handles (25) are fixedly connected to both ends of the threaded rod (26). Debugging through slots (210) are opened through the sliding block (28) and the mounting plate (29).

7. A seamless tube non-destructive mechanical testing apparatus according to claim 1, wherein A disassembly auxiliary ring (8) is provided at the end of the locking sleeve (6) away from the test fixing plate (3). The disassembly auxiliary ring (8) is sleeved on the test piece (10). The disassembly auxiliary ring (8) includes an auxiliary ring body (81). An inner ring (82) is coaxially fixedly connected to one end face of the auxiliary ring body (81). The inner ring (82) abuts against the collet (5).

8. A non-destructive mechanical testing apparatus for seamless pipes according to claim 7, characterized in that, The auxiliary ring body (81) has annularly distributed auxiliary ring through holes (83). A connecting bolt (9) is provided between the auxiliary ring body (81) and the locking sleeve (6). The connecting bolt (9) passes through the auxiliary ring through hole (83) on the auxiliary ring body (81) and is threadedly connected to the bolt hole (61) on the locking sleeve (6).

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