Sample compression testing machine

Abstract

The utility model discloses a sample compression testing machine which comprises a testing mechanism and a feeding mechanism, the test mechanism comprises a control box, one end of the control box is provided with a test seat, the test seat is internally provided with a pressure sensor, the peripheral side of the test seat is provided with a circular guide rail located on the upper end face of the lower extension table, the sliding end of the circular guide rail is provided with a vertically arranged first linear mechanism, the upper end of an output shaft of the first linear mechanism is provided with a laser range finder, and the upper end of the laser range finder is provided with a camera; an oil cylinder is vertically arranged at one end above the control box, and a pressing plate is arranged at the lower end of an output shaft of the oil cylinder. The feeding mechanism is arranged at one end of the testing mechanism and comprises a self-driving vehicle, a vertically-arranged fifth linear mechanism is arranged at the upper end of the self-driving vehicle, a C-shaped plate is arranged at the upper end of an output shaft of the self-driving vehicle, a rotating motor is arranged at one end of one short edge of the C-shaped plate, and a three-edged plate is arranged at one end of the output shaft of the C-shaped plate. The sample compression testing machine can be used for automatically feeding and testing samples, so that the manual operation process is reduced, and the potential safety hazard is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of material compression testing, in particular to a sample compression testing machine. Background Art

[0002] Compression testing is a test method used to measure the compressive load of a sample when it reaches the point of deformation, fracture, fragmentation or collapse. This test is applicable to a variety of products, including but not limited to corrugated cardboard, glass, bearings, bricks, concrete or any sample where compression resistance is critical. For concrete, compression testing mainly determines the axial compressive strength of concrete per unit volume and is an important test method for concrete structures.

[0003] When using an existing compression testing machine, the sample needs to be manually carried to the test bench. When testing some heavy samples, a lot of physical strength of the staff will be consumed. After the sample is placed, it needs to be manually centered according to the indicator line drawn on the test bench so that the sample is in the middle. The pressure of the pressure mechanism of the test bench is usually very high. If a fault occurs during manual operation, it will pose a safety hazard to the staff. Utility Model Content

[0004] In view of the above-mentioned defects, the utility model provides a sample compression testing machine, which can automatically load and test samples, reduce the manual operation process, and reduce safety hazards.

[0005] In order to achieve the purpose of this utility model, the following technologies are proposed:

[0006] A sample compression testing machine, comprising:

[0007] The test mechanism comprises a control box, one end of which is provided with a test seat, a pressure sensor is provided in the test seat, a circular guide rail is provided on the outer peripheral side of the test seat and is located on the upper end surface of the lower extension platform, a vertically arranged first linear mechanism is provided on the sliding end of the circular guide rail, a laser rangefinder is provided on the upper end of the output shaft, a camera is provided on the upper end of the laser rangefinder, an oil cylinder is vertically provided at one end above the control box, and a pressure plate is provided at the lower end of the output shaft of the oil cylinder;

[0008] The feeding mechanism is arranged at one end of the testing mechanism, and includes a self-driving vehicle. A fifth linear mechanism is vertically arranged at the upper end of the self-driving vehicle, a C-shaped plate is arranged at the upper end of the output shaft, a rotating motor is arranged at one end of a short side of the C-shaped plate, and a triangular plate is arranged at one end of the output shaft.

[0009] Furthermore, a control system and a communication module are provided in the control box.

[0010] Furthermore, an upper extension platform is provided at the upper part, a plurality of supporting blocks are provided on the upper end surface of the upper extension platform, the oil cylinder is provided on the supporting blocks, and the output shaft of the oil cylinder is passed through the upper extension platform.

[0011] Furthermore, a lower extension platform is provided at the lower part of one end surface of the control box, and the test seat is arranged on the lower extension platform.

[0012] Furthermore, a plate groove is provided on one end face of the control box, and a square groove penetrating into the plate groove is provided on the other end face. A fourth linear mechanism is provided in the square groove, and an end push plate matching the plate groove is provided at one end of its output shaft. Second linear mechanisms are provided on both sides of the control box, and a third linear mechanism perpendicular to its output direction is provided at one end of its output shaft, and a side push plate is provided at one end of the output shaft of the third linear mechanism.

[0013] Furthermore, a driven rod is provided at the other end of the triangular plate, and a rotating seat is provided on one end of the other short side of the C-shaped plate, and the driven rod is rotatably matched with the rotating seat.

[0014] Furthermore, the lens directions of the laser rangefinder and the camera are both pointed above the axis of the test seat.

[0015] The beneficial effects of this technical solution are:

[0016] From the moment the sample is placed on the triangular plate, loading and testing can be carried out automatically, and automatic centering can also be achieved. No manual operation is required by the staff, which can save physical effort and reduce safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 An overall stereogram of an embodiment of the present application is shown.

[0018] Figure 2 An exploded view of the test mechanism of an embodiment of the present application is shown.

[0019] Figure 3 The present application embodiment is shown Figure 2 A magnified view of part A. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0021] like Figure 1~Figure 3 A sample compression testing machine shown includes a testing mechanism 1 and a feeding mechanism 2.

[0022] The test mechanism 1 includes a control box 11, in which a control system and a communication module are arranged. The control system includes a hydraulic pump, a control valve, and a controller. The controller may adopt a PLC, and the communication module is used for two-way communication with a computer of a tester. A lower extension platform 111 is arranged at the lower part of one end surface of the control box 11, and an upper extension platform 112 is arranged at the upper part. A plate groove 113 is also provided at one end surface of the control box 11, and a square groove 114 penetrating to the plate groove 113 is provided at the other end surface. A test seat 12 is arranged on the lower extension platform 111, and a pressure sensor electrically connected to the controller is arranged in the test seat 12. A circular guide rail 121 located on the upper end surface of the lower extension platform 111 is arranged on the outer peripheral side of the test seat 12, and a vertically arranged first linear mechanism 13 is arranged on the sliding end of the circular guide rail 121, and a laser rangefinder 13 is arranged on the upper end of the output shaft thereof. 1. A camera 132 is provided at the upper end of the laser rangefinder 131. The lens directions of the laser rangefinder 131 and the camera 132, which are electrically connected to the controller, are both directed to the upper axis of the test seat 12. A plurality of support blocks are provided on the upper end surface of the upper extension platform 112. A vertically arranged oil cylinder 14 connected to the hydraulic pump is provided on the support block. The output shaft of the oil cylinder 14 is passed through the upper extension platform 112 and a pressure plate 15 is provided at the lower end. T-shaped frames are also provided on both sides of the control box 11. A second linear mechanism 16 is provided on the outer side of the T-shaped frame. A third linear mechanism 17 perpendicular to its output direction is provided at one end of its output shaft. A side push plate 171 is provided at one end of the output shaft of the third linear mechanism 17. The test mechanism 1 also includes a fourth linear mechanism 18 arranged in the square groove 114. An end push plate 181 matching the plate groove 113 is provided at one end of its output shaft.

[0023] The feeding mechanism 2 is arranged at one end of the testing mechanism 1, and includes a self-propelled vehicle 21. A fifth linear mechanism 22 is vertically arranged at the upper end of the self-propelled vehicle 21. A C-shaped plate 23 is arranged at the upper end of its output shaft. A rotating motor 24 is arranged at one end of a short side of the C-shaped plate 23. A triangular plate 25 is arranged at one end of its output shaft. When receiving the sample, one rectangular surface of the triangular plate 25 faces upward, and the other two rectangular surfaces perpendicular to each other face downward. A driven rod 26 is arranged at the other end of the triangular plate 25. A rotating seat is arranged at one end of the other short side of the C-shaped plate 23, and the driven rod 26 rotates to cooperate with the rotating seat.

[0024] In this embodiment, the first linear mechanism 13, the second linear mechanism 16, the third linear mechanism 17, the fourth linear mechanism 18, and the fifth linear mechanism 22 all adopt single-axis linear cylinders.

[0025] Working method:

[0026] First, place the sample on the triangular plate 25, and then slowly approach one end above the test seat 12 through the joint action of the self-driving vehicle 21, the fifth linear mechanism 22, and the rotating motor 24, and then make a rectangular surface of the triangular plate 25 parallel to the upper end surface of the test seat 12, and tilt the rectangular surface with the sample, so that the sample slowly slides onto the test seat 12. If it cannot slide down smoothly, the tilt angle is further increased.

[0027] Preferably, the test machine can replace the step of manually adjusting the sample in the middle of the test seat 12. Specifically, in the first direction, the surface on which the sample is initially placed can be rotated to a vertical position by the rotating motor 24 for pushing and adjusting. In the second and third directions, the third linear mechanism 17 can be pushed out by the second linear mechanism 16, and then the third linear mechanism 17 pushes the side push plate 171 for adjustment. In the fourth direction, the circular guide rail 121 can first slide the laser rangefinder 131 and the camera 132 to an unobstructed position, and then the end push plate 181 can be pushed by the fourth linear mechanism 18 for adjustment. More specifically, the laser rangefinder 131 can be used to measure the distance around the sample to determine whether the distance in each direction exceeds a predetermined error distance. For a cylinder, the distances from multiple points on the outer circumference to the laser rangefinder 131 are measured to be basically consistent. For a cube, the distances from the four sides to the laser rangefinder 131 are measured to be basically consistent.

[0028] Then, the compression test is performed. Specifically, the control system controls the oil cylinder 14 to make the pressing plate 15 press the sample. At this time, the following steps are performed simultaneously: the pressure sensor continuously records the pressure, the circular guide rail 121 makes the camera 132 perform a circular motion, and the camera 132 continuously takes pictures around the sample and transmits them to the test personnel through the communication module for continuous observation to see if there are cracks or deformations in the sample. Preferably, when the camera 132 performs a circular motion, it can also be raised and lowered by the first linear mechanism 13 to better observe the sample.

[0029] After the test, preferably, the loading mechanism 2 can also be used for unloading, so that there is no need for manual unloading. Specifically, the end push plate 181 can be pushed by the fourth linear mechanism 18 to unload the material, and the triangular plate 25 can be used to receive it.

[0030] The above are only some of the embodiments listed in this application and are not intended to limit this application.

Claims

1. A sample compression testing machine, characterized in that: include: The test mechanism (1) comprises a control box (11), one end of which is provided with a test seat (12), a pressure sensor is provided in the test seat (12), the outer peripheral side of the test seat (12) is provided with a circular guide rail (121) located on the upper end surface of the lower extension platform (111), the sliding end of the circular guide rail (121) is provided with a vertically arranged first linear mechanism (13), the upper end of the output shaft of which is provided with a laser rangefinder (131), the upper end of the laser rangefinder (131) is provided with a camera (132), an oil cylinder (14) is vertically provided at one end above the control box (11), and a pressure plate (15) is provided at the lower end of the output shaft of the oil cylinder (14); The feeding mechanism (2) is arranged at one end of the test mechanism (1), and comprises a self-driving vehicle (21). A fifth linear mechanism (22) is arranged vertically at the upper end of the self-driving vehicle (21), a C-shaped plate (23) is arranged at the upper end of the output shaft, a rotating motor (24) is arranged at one end of a short side of the C-shaped plate (23), and a triangular plate (25) is arranged at one end of the output shaft.

2. The sample compression testing machine according to claim 1, characterized in that: A control system and a communication module are arranged in the control box (11).

3. The sample compression testing machine according to claim 1, characterized in that: An upper extension platform (112) is provided at the upper portion, a plurality of support blocks are provided on the upper end surface of the upper extension platform (112), an oil cylinder (14) is provided on the support blocks, and an output shaft of the oil cylinder (14) is passed through the upper extension platform (112).

4. The sample compression testing machine according to claim 1, characterized in that: A lower extension platform (111) is provided at the lower portion of one end surface of the control box (11), and the test seat (12) is provided on the lower extension platform (111).

5. The sample compression testing machine according to claim 1, characterized in that: A plate groove (113) is formed on one end surface of the control box (11), and a square groove (114) penetrating the plate groove (113) is formed on the other end surface. A fourth linear mechanism (18) is provided in the square groove (114), and an end push plate (181) matching the plate groove (113) is provided at one end of the output shaft of the fourth linear mechanism (18). Second linear mechanisms (16) are provided on both sides of the control box (11), and a third linear mechanism (17) perpendicular to the output direction is provided at one end of the output shaft of the third linear mechanism (17). A side push plate (171) is provided at one end of the output shaft of the third linear mechanism (17).

6. The sample compression testing machine according to claim 1, characterized in that: A driven rod (26) is provided at the other end of the triangular plate (25), and a rotating seat is provided at one end of the other short side of the C-shaped plate (23), and the driven rod (26) is rotatably matched with the rotating seat.

7. The sample compression testing machine according to claim 1, characterized in that: The lens directions of the laser rangefinder (131) and the camera (132) are both pointed above the axis of the test seat (12).

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