An all-in-one bending and compression testing machine

Through the integrated casting of compressive frame and flexural frame, combined with the hydraulic pump-driven clamp and rotary shaft, the problem of cumulative parts errors in the prior art is solved, and the high accuracy and stability of compressive and flexural tests are achieved, and the detection efficiency and safety of the equipment are improved.

CN111982702BActive Publication Date: 2025-08-15ZHEJIANG LICHEN INSTR CO LTD

Patent Information

Application Number
CN202010972972.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-09-16
Publication Date
2025-08-15
Estimated Expiration
2040-09-16

AI Technical Summary

Technical Problem

The parts processing errors and assembly errors of existing flexural and compression testing machines are accumulated, which makes it difficult to guarantee the parallelism between the upper and lower pressing plates of the equipment and the concentricity of the sensor, which affects the test results and the service life of the equipment.

Method used

The integrated casting anti-pressure frame and flexural frame are adopted, combined with the hydraulic pump-driven clamp and rotation shaft, and the centerline overlap design and connection block splicing are designed to reduce machining errors, improve rigidity and stability, and enhance test accuracy and safety.

Benefits of technology

It effectively reduces the accumulation of machining errors between parts, improves the accuracy and stability of compressive and flexural testing, and enhances the detection efficiency and safety of the equipment.

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Abstract

The present invention relates to an all-in-one flexural and compressive testing machine, comprising a base, an flexural frame, a compressive frame and a display screen provided at the upper end of the base, a second hydraulic pump provided at the inner top of the flexural frame, an upper clamp driven by the second hydraulic pump provided on the side of the second hydraulic pump close to the base, a support seat provided on the side of the base close to the upper clamp, a rotating shaft provided on the side of the support seat close to the upper clamp, a lower clamp installed on the rotating shaft, the lower clamp installed on the rotating shaft, a motor driving the rotating shaft to rotate provided in the base, a first hydraulic pump provided on the side of the compressive frame close to the base, a pressure plate provided on the side of the first hydraulic pump close to the base, and a bearing seat provided on the side of the base close to the pressure plate. Since the flexural frame and the compressive frame are integrally cast and then processed, the present invention minimizes the accumulation of processing errors between parts, and has higher rigidity and strength; and has a beautiful appearance.
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Description

Technical Field

[0001] The present invention relates to the technical field of testing equipment, in particular to an all-in-one bending and compression testing machine. Background Art

[0002] Flexural and compressive strength are the two primary mechanical performance indicators of cement test blocks. These tests are primarily conducted using the upward thrust of the cylinder's piston rod. Currently, the compression and flexural reaction frames of commercially available integrated flexural and compression testing machines utilize an upper and lower beam plus two columns. This cumulative error, caused by the combined machining and assembly errors of multiple components, makes it difficult to ensure the parallelism between the upper and lower platens and the concentricity between the sensor and the cylinder. These factors significantly impact test results and equipment lifespan. Summary of the Invention

[0003] The purpose of the present invention is to provide an all-in-one bending and compression testing machine to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A flexural and compressive testing integrated machine includes a base, an flexural frame, a compressive frame and a display screen are provided at the upper end of the base, a second hydraulic pump is provided at the inner top of the flexural frame, an upper clamp driven by the second hydraulic pump is provided on the side of the second hydraulic pump close to the base, a support seat is provided on the side of the base close to the upper clamp, a rotating shaft is provided on the side of the support seat close to the upper clamp, a lower clamp is installed on the rotating shaft, the lower clamp is installed on the rotating shaft, a motor for driving the rotating shaft to rotate is provided in the base, a first hydraulic pump is provided on the side of the compressive frame close to the base, a pressure plate is provided on the side of the first hydraulic pump close to the base, and a bearing seat is provided on the side of the base close to the pressure plate.

[0006] As a further solution of the present invention: a plurality of connecting blocks are provided on the base, plug posts are provided between adjacent connecting blocks, and the bearing seat is installed on the connecting blocks.

[0007] As a further solution of the present invention: a first material receiving frame is provided on the base, and the bearing seat is installed on the upper end of the first material receiving frame.

[0008] As a further solution of the present invention: a second material receiving frame is provided at the upper end of the base, and the lower clamp is installed at the upper end of the second material receiving frame.

[0009] As a further solution of the present invention: a limiting groove is provided on the lower clamp, and a first roller is provided on the lower clamp.

[0010] As a further solution of the present invention: a second roller is provided on the upper clamp.

[0011] As a further solution of the present invention: the center line of the pressure plate is arranged to coincide with the center line of the bearing seat.

[0012] As a further solution of the present invention: the center line of the upper clamp is arranged to coincide with the center line of the lower clamp.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. When in use, the first hydraulic pump drives the pressure plate to move in the vertical direction, and the object to be tested is placed between the bearing seat and the pressure plate. The first hydraulic pump drives the movement of the pressure plate to squeeze the object, thereby testing the compressive performance of the object. In addition, the second hydraulic pump drives the upper fixture to fix the upper part of the object and squeeze the object. In addition, the motor drives the rotation shaft to rotate, and the rotation shaft rotates the lower fixture to achieve the bending test. Since the compression frame and the bending frame are integrally cast and processed, the cumulative processing errors between parts are minimized, and it has higher rigidity and strength; and the appearance is beautiful.

[0015] 2. By setting up several connecting blocks on the base, the connecting blocks are spliced and fixed by plug-in columns. The number of connecting blocks can be selected according to the volume of the object to be tested. This can improve the stability of the compression test and effectively improve the accuracy of the compression test.

[0016] 3. By setting a first material connection frame on the base and installing the bearing seat on the upper end of the first material connection frame, the setting of the first material connection frame can prevent foreign objects from being ejected during the pressure test, thereby improving the safety of the pressure test.

[0017] 4. By setting a second material receiving frame at the upper end of the base, it is possible to prevent foreign objects from being ejected during the flexural test, thereby improving the safety of the flexural test.

[0018] 5. The setting of the first roller can effectively improve the stability of the flexural test, thereby effectively improving the accuracy of the flexural test.

[0019] 6. By setting a second roller on the upper fixture, the setting of the second roller can effectively improve the stability of the folding test and improve the accuracy of the folding test.

[0020] 7. By aligning the center line of the pressure plate with the center line of the bearing seat, the detection efficiency and accuracy of the test machine can be effectively improved.

[0021] 8. By aligning the center line of the upper fixture with the center line of the lower fixture, the detection efficiency and accuracy of the test machine can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1This is a structural diagram of the all-in-one bending and compression testing machine of the present invention;

[0023] Figure 2 A top view of the all-in-one bending and compression testing machine of the present invention;

[0024] Figure 3 for Figure 2 Sectional view of the AA plane;

[0025] Figure 4 This is a structural diagram of the integrated bending and compression testing machine of the present invention without the first protective cover and the second protective cover installed.

[0026] In the figure: 1. Base; 2. Anti-bending frame; 3. Anti-compression frame; 4. Display screen; 5. Drawer; 6. Second protective cover; 7. First protective cover; 8. Pressure plate; 9. Upper clamp; 10. First hydraulic pump; 11. Bearing seat; 12. Connecting block; 13. Insert column; 14. Second hydraulic pump; 15. Lower clamp; 16. Second material receiving frame; 17. Support seat; 18. Rotating shaft; 19. Limiting groove; 20. First roller; 21. Second roller; 22. Motor. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figures 1 to 4In an embodiment of the present invention, a flexural and compressive testing all-in-one machine includes a base 1, an flexural frame 2, a compressive frame 3 and a display screen 4 are provided at the upper end of the base 1, a second hydraulic pump 14 is provided at the inner top of the flexural frame 2, and an upper clamp 9 driven by the second hydraulic pump 14 is provided on the side of the second hydraulic pump 14 close to the base 1, a support seat 17 is provided on the side of the base 1 close to the upper clamp 9, a rotating shaft 18 is provided on the side of the support seat 17 close to the upper clamp 9, a lower clamp 15 is installed on the rotating shaft 18, and the lower clamp 15 is installed on the rotating shaft 18, a motor 22 for driving the rotating shaft 18 to rotate is provided in the base 1, a first hydraulic pump 10 is provided on the side of the compressive frame 3 close to the base 1, a pressure plate 8 is provided on the side of the first hydraulic pump 10 close to the base 1, and a bearing seat 11 is provided on the side of the base 1 close to the pressure plate 8. During use, the first hydraulic pump 10 drives the pressure plate 8 to move in the vertical direction, and the object to be tested is placed between the supporting seat 11 and the pressure plate 8. The first hydraulic pump 10 drives the movement of the pressure plate 8 to squeeze the object, thereby testing the compressive performance of the object. In addition, the second hydraulic pump 14 drives the upper clamp 9 to fix the upper part of the object and squeeze the object. In addition, the motor 22 drives the rotating shaft 18 to rotate, and the rotating shaft 18 rotates the lower clamp 15 to realize the bending test. Since the compression frame 3 and the bending frame 2 are integrally cast and processed, the accumulation of processing errors between parts is minimized, and it has higher rigidity and strength; and the appearance is beautiful.

[0029] In this embodiment, the base 1 is provided with a plurality of connecting blocks 12, with posts 13 provided between adjacent connecting blocks 12, and the bearing seat 11 is mounted on the connecting blocks 12. By providing a plurality of connecting blocks 12 on the base 1, and connecting and securing the connecting blocks 12 with posts 13, the number of connecting blocks 12 can be selected according to the volume of the object to be tested, thereby improving the stability of the compression test and thereby effectively improving the accuracy of the compression test.

[0030] In this embodiment, a first material receiving frame is provided on the base 1, and a support seat 11 is mounted on the upper end of the first material receiving frame. By providing the first material receiving frame on the base 1 and the support seat 11 on the upper end of the first material receiving frame, the provision of the first material receiving frame can prevent foreign objects from being ejected during the compression test, thereby improving the safety of the compression test.

[0031] In this embodiment, a second material receiving frame 16 is provided at the upper end of the base 1, and the lower clamp 15 is mounted on the upper end of the second material receiving frame 16. By providing the second material receiving frame 16 at the upper end of the base 1, foreign objects can be prevented from being ejected during the flexural test, thereby improving the safety of the flexural test.

[0032] In this embodiment, a limiting groove 19 is provided on the lower fixture 15, and a first roller 20 is provided on the lower fixture 15. The provision of the first roller 20 can effectively improve the stability of the flexural test, thereby effectively improving the accuracy of the flexural test.

[0033] In this embodiment, the upper fixture 9 is provided with a second roller 21. By providing the second roller 21 on the upper fixture 9, the provision of the second roller 21 can effectively improve the stability of the anti-bending test and improve the accuracy of the anti-bending test.

[0034] In this embodiment, the center line of the pressure plate 8 is arranged to coincide with the center line of the support base 11. By coinciding the center line of the pressure plate 8 with the center line of the support base 11, such an arrangement can effectively improve the detection efficiency and accuracy of the test all-in-one machine.

[0035] In this embodiment, the center line of the upper fixture 9 is arranged to coincide with the center line of the lower fixture 15. By coinciding the center line of the upper fixture 9 with the center line of the lower fixture 15, the detection efficiency and accuracy of the test machine can be effectively improved.

[0036] It can be understood that a first protective cover 7 is provided on one side of the compression frame 3 and a second protective cover 6 is provided on one side of the flexure frame 2, so as to ensure safety during compression and flexure tests.

[0037] It can be understood that a drawer 5 is provided on one side of the base 1, and some keyboards and test tools can be placed in the drawer 5 for easy access.

[0038] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0039] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A flexural and compression testing machine, characterized in that: The invention comprises a base [1], wherein the upper end of the base [1] is provided with an anti-bending frame [2], an anti-compression frame [3] and a display screen [4], the inner top of the anti-bending frame [2] is provided with a second hydraulic pump [14], the second hydraulic pump [14] is provided with an upper clamp [9] driven by the second hydraulic pump [14] on the side close to the base [1], the base [1] is provided with a support seat [17] on the side close to the upper clamp [9], and the support seat [17] is provided with a rotary A rotating shaft [18], a lower clamp [15] is mounted on the rotating shaft [18], the lower clamp [15] is mounted on the rotating shaft [18], a motor for driving the rotating shaft [18] to rotate is disposed in the base [1], a first hydraulic pump [10] is disposed on a side of the pressure-resistant frame [3] close to the base [1], a pressure plate [8] is disposed on a side of the first hydraulic pump [10] close to the base [1], and a bearing seat [11] is disposed on a side of the base [1] close to the pressure plate [8]; The lower clamp [15] is provided with a limiting groove [19], and the lower clamp [15] is provided with a first roller [20]; The upper clamp [9] is provided with a second roller [21].

2. The all-in-one bending and compression testing machine according to claim 1, characterized in that: The base [1] is provided with a plurality of connecting blocks [12], and plug posts are provided between adjacent connecting blocks [12]. The bearing seat [11] is installed on the connecting blocks [12].

3. The all-in-one bending and compression testing machine according to claim 1, characterized in that: The base [1] is provided with a first material receiving frame, and the bearing seat [11] is installed on the upper end of the first material receiving frame.

4. The all-in-one bending and compression testing machine according to claim 1, characterized in that: The upper end of the base [1] is provided with a second material receiving frame [16], and the lower clamp [15] is installed on the upper end of the second material receiving frame [16].

5. The all-in-one bending and compression testing machine according to claim 1, characterized in that: The center line of the pressure plate [8] is arranged to coincide with the center line of the bearing seat [11].

6. The all-in-one bending and compression testing machine according to claim 1, characterized in that: The center line of the upper clamp [9] is arranged to coincide with the center line of the lower clamp [15].

Citation Information

Patent Citations

  • Full-automatic cement compression-resistant and bending-resistant integrated test device

    CN209764604U

  • Fracture resistance and compression resistance testing all-in-one machine

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