Mechanical verification and calibration test bench

By designing a mechanical calibration test bench including a load table, a load plate, an electric cylinder and a collection box, the problem of low detection efficiency of batch mechanical sensors in the prior art is solved, rapid detection and screening are achieved, and the convenience of temporary storage of qualified products is improved.

CN222856016UActive Publication Date: 2025-05-13聊城市检验检测中心
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202421725464.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-19
Publication Date
2025-05-13
Estimated Expiration
2034-07-19

AI Technical Summary

Technical Problem

The existing mechanical calibration test bench is difficult to quickly load and inspect batch mechanical sensors, and unqualified products are difficult to quickly screen out, making it difficult to temporarily store qualified products stacked and stored.

Method used

A mechanical calibration test bench including a load table, a load plate, an electric cylinder and a collection box is designed, and the electric cylinder is urged to be detected and screened by an electric cylinder, and temporarily stored using a collection box.

Benefits of technology

It realizes rapid loading and testing of batch mechanical sensors and rapid screening of unqualified products, which facilitates stacking and temporary storage of qualified products, and improves detection efficiency and convenience.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222856016U_ABST
    Figure CN222856016U_ABST
Patent Text Reader

Abstract

The utility model discloses a mechanical verification and calibration test bench, which relates to the technical field of test benches and comprises a bearing bench. A bearing plate is fixedly connected to the upper end of the bearing table, a first groove body is formed in the upper end of the bearing plate, a waste groove is formed in the rear end face of the inner wall of the first groove body, and a through hole penetrates through the bottom face of the inner wall of the waste groove. According to the test bed, when a force sensor is qualified, the force sensor is moved rightwards and finally falls into a second collection box for temporary storage through a fourth groove body, and when the force sensor is unqualified and the force sensor moves to the rear of a second push plate, a third electric cylinder is started to enable the second push plate to move backwards; the force sensors can be pushed backwards into the through holes and then fall into the first collecting box, and the problems that in the prior art, a mechanical verification and calibration test bed usually difficultly carries out rapid feeding detection on batch mechanical sensors, unqualified products are difficult to screen out rapidly, and qualified products are inconvenient to stack, place and temporarily store are solved. The mechanical verification and calibration test bed solves the problems that in the prior art, a mechanical verification and calibration test bed is difficult to carry out rapid feeding detection on batch mechanical sensors, and unqualified products are difficult to screen out rapidly.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of test benches, in particular to a mechanics verification and calibration test bench. Background Art

[0002] A mechanical verification and calibration test bench is a device used to detect and calibrate mechanical sensors. It is widely used in industries such as industry, scientific research, and quality supervision. With the continuous development of science and technology, the functions and precision requirements of mechanical verification and calibration test benches are becoming higher and higher. When using the mechanical verification and calibration test bench, it is usually necessary to apply pressure to the mechanical sensor being tested, which can be static force or dynamic force. Common loading pressures are usually applied using mechanical loading, hydraulic loading, and electrical loading. By applying pressure to the mechanical sensor, the quality of the mechanical sensor can be quickly tested. However, the mechanical verification and calibration test bench in the prior art is usually difficult to quickly load and test batches of mechanical sensors, and it is difficult to quickly screen out unqualified products. It is not convenient to stack and temporarily store qualified products, which needs further improvement. Utility Model Content

[0003] The purpose of the utility model is to provide a mechanical verification and calibration test bench, which solves the technical problems in the prior art that it is usually difficult to quickly load and test batches of mechanical sensors, it is difficult to quickly screen out unqualified products, and it is inconvenient to stack and temporarily store qualified products.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mechanical verification and calibration test bench, comprising a bearing platform; a bearing plate is fixedly connected to the upper end of the bearing platform, a first slot body is opened at the upper end of the bearing plate, a waste slot is opened at the rear end surface of the inner wall of the first slot body, a through hole is penetrated through the bottom surface of the inner wall of the waste slot, a third slot body is opened at the front end surface of the inner wall of the first slot body, a first U-shaped plate is fixedly connected to the left end edge of the upper end of the bearing plate, first movable plates are movably arranged on the inner walls of both sides of the first U-shaped plate, a first electric cylinder is fixedly connected to the upper end of the bearing plate, a first push plate is fixedly connected to the rear end of the output shaft of the first electric cylinder, a second electric cylinder is fixedly connected to the left end of the bearing plate, and the output shaft of the second electric cylinder penetrates through the bearing plate The left end of the plate extends to the interior of the first trough body, and a sensor digital display is movably provided on the upper end of the carrying plate. A third electric cylinder is fixedly connected to the bottom surface of the inner wall of the third trough body, and a second push plate is fixedly connected to the rear end of the output shaft of the third electric cylinder. The third trough body is located directly in front of the waste trough, and a support frame is fixedly connected to the upper end of the carrying platform, and a fourth electric cylinder is fixedly connected to the upper end of the support frame. The lower end of the output shaft of the fourth electric cylinder penetrates the support frame and is fixedly connected to a lifting plate, and a pressure plate is fixedly connected to the lower end of the lifting plate. A fourth trough body is penetrated through the bottom surface of the inner wall of the first trough body, and a first collecting box and a second collecting box are movably provided below the carrying plate. The inner wall of the second collecting box is flush with the inner wall of the fourth trough body, and the first collecting box is located below the through hole.

[0005] Preferably, when in use, multiple force sensors are stacked and placed in the space surrounded by the first U-shaped plate and the first movable plate, the force sensor will fall into the first trough through the inside of the first U-shaped plate, and then the second electric cylinder is turned on so that the output shaft of the second electric cylinder passes through the left end of the bearing plate to push the force sensor in the direction of the support frame, the force sensors will push one by one, and finally the first force sensor will be pushed to the bottom of the support frame, and then the wires are manually connected to the first force sensor and the sensor digital display, and the fourth electric cylinder is turned on to move the lifting plate downward, and finally the pressure plate is pressed downward on the force sensor, and the pressure value detected by the force sensor will be displayed on the sensor digital display. Therefore, the user can judge the quality of the force sensor according to the pressure value displayed on the sensor digital display. When the force sensor is qualified, the force sensor continues to move to the right, and finally falls into the second collection box through the fourth slot for temporary storage. When the force sensor is unqualified, when the force sensor moves to the rear of the second push plate, the third electric cylinder is turned on to move the second push plate backward, so that the force sensor can be pushed backward into the inside of the through hole and then fall downward into the inside of the first collection box, which solves the problem that the mechanical inspection and calibration test bench in the prior art is usually difficult to quickly load and test batches of mechanical sensors, it is difficult to quickly screen out unqualified products, and it is inconvenient to stack and temporarily store qualified products.

[0006] Preferably, the two sides of the first push plate are in contact with the two inner walls of the first U-shaped plate, and the two sides of the second push plate are in contact with the two side surfaces of the inner wall of the third trough body. When in use, the first push plate can move stably along the two side surfaces of the inner wall of the first U-shaped plate, and the second push plate can move stably along the two side surfaces of the inner wall of the third trough body.

[0007] Preferably, a fixing block is fixedly connected to the left end of the support frame, and evenly distributed screw holes are penetrated through the upper end of the fixing block. A threaded column is threadedly installed on the inner wall of the screw hole, and a camera is fixedly connected to the lower end of the threaded column. The threaded column is threadedly installed on the inner wall of the screw hole. When the camera is turned on, the appearance of the force sensor can be recorded, which is convenient for test personnel to detect the appearance of the force sensor and observe defects on the force sensor.

[0008] Preferably, a second U-shaped plate is movably provided at the upper end of the carrying plate, the opening of the second U-shaped plate faces the first trough body, a second movable plate is movably provided inside the second U-shaped plate, and evenly distributed rubber columns are fixedly connected to the upper and lower ends of the second movable plate. The integrated structure formed by the second movable plate and the rubber columns is stacked inside the second U-shaped plate. The second movable plate is held and the integrated structure formed by the second movable plate and the rubber columns is placed inside the second collecting box, and then the force sensor is placed inside the second collecting box. The force sensor will fall on the upper ends of multiple rubber columns. The multiple rubber columns can provide buffering protection for the force sensor, and the force sensor can be stored at intervals through the integrated structure formed by the second movable plate and the rubber columns.

[0009] Preferably, two handles are fixedly connected to the side walls of the second collection box, and the upper end surface of the second collection box fits in with the lower end surface of the supporting plate. The second collection box can be conveniently moved by holding the handles. The fitting arrangement of the upper end surface of the second collection box and the lower end surface of the supporting plate facilitates the force sensor to quickly and stably fall into the interior of the second collection box through the fourth groove body for temporary storage.

[0010] Preferably, the rear end face of the inner wall of the first U-shaped plate is flush with the rear end face of the inner wall of the first trough body, the height of the first movable plate is smaller than the height of the first U-shaped plate, and the rear end face of the inner wall of the first U-shaped plate is flush with the rear end face of the inner wall of the first trough body, so that the force sensor falls on the bottom surface of the inner wall of the first trough body after being stacked inside the first U-shaped plate.

[0011] Preferably, a fifth trough is provided at the right end of the support platform, a fifth electric cylinder is fixedly connected to the inner wall of the fifth trough, a push block is fixedly connected to the right end of the output shaft of the fifth electric cylinder, and the push block is located on the left side of the second collection box. When the second collection box needs to be moved to the right, the fifth electric cylinder is turned on to move the push block to the right, which can facilitate the movement of the second collection box to the right, thereby facilitating the replacement of the second collection box.

[0012] Compared with the related art, the mechanical verification and calibration test bench provided by the utility model has the following beneficial effects:

[0013] 1. The utility model provides a mechanical verification and calibration test bench. By stacking a plurality of force sensors in a space surrounded by a first U-shaped plate and a first movable plate, the force sensor will fall into the first trough through the inside of the first U-shaped plate, and then the second electric cylinder is turned on so that the output shaft of the second electric cylinder passes through the left end of the bearing plate to push the force sensor in the direction of the support frame. The force sensors will push one by one, and finally the first force sensor will be pushed to the bottom of the support frame. Then the wires are manually connected to the first force sensor and the sensor digital display, and the fourth electric cylinder is turned on so that the lifting plate moves downward, and finally the pressure plate is pressed downward on the force sensor, and the pressure value detected by the force sensor will be displayed on the sensor. The pressure sensor is displayed on the digital display of the sensor, so that the user can judge the quality of the force sensor according to the pressure value displayed on the digital display of the sensor. When the force sensor is qualified, the force sensor continues to move to the right, and finally falls into the second collection box through the fourth slot for temporary storage. When the force sensor is unqualified, when the force sensor moves to the rear of the second push plate, the third electric cylinder is turned on to make the second push plate move backward, so that the force sensor can be pushed backward into the inside of the through hole and then fall downward into the inside of the first collection box, which solves the problem that the mechanical verification and calibration test bench in the prior art is usually difficult to quickly load and test batches of mechanical sensors, it is difficult to quickly screen out unqualified products, and it is inconvenient to stack and temporarily store qualified products.

[0014] 2. By installing the threaded column on the inner wall of the screw hole, the camera can be turned on to record the appearance of the force sensor, which is convenient for testers to detect the appearance of the force sensor and observe defects on the force sensor. The second collection box can be easily moved by holding the handle. The upper end surface of the second collection box and the lower end surface of the bearing plate are arranged to fit together, which makes it convenient for the force sensor to quickly and stably fall into the second collection box for temporary storage through the fourth slot;

[0015] 3. Place the integrated structure formed by the second movable plate and the rubber column into the second collection box by holding the second movable plate, and then place the force sensor into the second collection box. The force sensor will fall on the upper end of the multiple rubber columns. The multiple rubber columns can provide buffer protection for the force sensor, and the integrated structure formed by the second movable plate and the rubber column can be used to store the force sensor in intervals.

[0016] 4. By arranging the rear end face of the inner wall of the first U-shaped plate flush with the rear end face of the inner wall of the first trough body, it is convenient for the force sensor to fall on the bottom surface of the inner wall of the first trough body after being stacked inside the first U-shaped plate. When the second collection box needs to be moved to the right, the fifth electric cylinder is turned on to move the push block to the right, which can facilitate the movement of the second collection box to the right, thereby facilitating the replacement of the second collection box. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the support frame of the utility model;

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the second U-shaped plate of the utility model;

[0020] Figure 4 It is a three-dimensional structural schematic diagram of the first collection box and the second collection box of the utility model;

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the fifth electric cylinder of the utility model.

[0022] In the figure: 1. supporting platform; 2. supporting plate; 3. first trough body; 4. waste trough; 5. through hole; 6. third trough body; 7. first U-shaped plate; 8. first movable plate; 9. first electric cylinder; 10. first push plate; 11. second electric cylinder; 12. sensor digital display; 13. third electric cylinder; 14. second push plate; 15. support frame; 16. fourth electric cylinder; 17. lifting plate; 18. pressure plate; 19. fixing block; 20. screw hole; 21. threaded column; 22. camera; 23. second U-shaped plate; 24. second movable plate; 25. rubber column; 26. first collection box; 27. second collection box; 28. handle; 29. ​​fourth trough body; 30. fifth trough body; 31. fifth electric cylinder; 32. push block. DETAILED DESCRIPTION

[0023] Embodiment 1:

[0024] See also Figure 1-4The utility model provides a technical solution, including a carrying platform 1; a carrying plate 2 is fixedly connected to the upper end of the carrying platform 1, a first slot body 3 is opened at the upper end of the carrying plate 2, a waste slot 4 is opened at the rear end surface of the inner wall of the first slot body 3, a through hole 5 is penetrated and opened at the bottom surface of the inner wall of the waste slot 4, a third slot body 6 is opened at the front end surface of the inner wall of the first slot body 3, a first U-shaped plate 7 is fixedly connected to the left end edge of the upper end of the carrying plate 2, first movable plates 8 are movably arranged on the inner walls of both sides of the first U-shaped plate 7, a first electric cylinder 9 is fixedly connected to the upper end of the carrying plate 2, a first push plate 10 is fixedly connected to the rear end of the output shaft of the first electric cylinder 9, a second electric cylinder 11 is fixedly connected to the left end of the carrying plate 2, the output shaft of the second electric cylinder 11 penetrates the left end of the carrying plate 2 and extends to the inside of the first slot body 3, and the carrying plate 2 is movably provided with a sensor digital display 12, the bottom surface of the inner wall of the third trough body 6 is fixedly connected with a third electric cylinder 13, the rear end of the output shaft of the third electric cylinder 13 is fixedly connected with a second push plate 14, the third trough body 6 is located just in front of the waste trough 4, the upper end of the carrying platform 1 is fixedly connected with a support frame 15, the upper end of the support frame 15 is fixedly connected with a fourth electric cylinder 16, the lower end of the output shaft of the fourth electric cylinder 16 penetrates the support frame 15 and is fixedly connected with a lifting plate 17, the lower end of the lifting plate 17 is fixedly connected with a pressure plate 18, the bottom surface of the inner wall of the first trough body 3 is penetrated with a fourth trough body 29, the lower part of the carrying plate 2 is movably provided with a first collecting box 26 and a second collecting box 27, the inner wall of the second collecting box 27 is flush with the inner wall of the fourth trough body 29, and the first collecting box 26 is located below the through hole 5.

[0025] See also Figure 1 In this embodiment, two sides of the first push plate 10 are in contact with two inner walls of the first U-shaped plate 7 , and two sides of the second push plate 14 are in contact with two side surfaces of the inner wall of the third trough body 6 .

[0026] See also Figure 2 In this embodiment, a fixing block 19 is fixedly connected to the left end of the support frame 15, and evenly distributed screw holes 20 are penetrated through the upper end of the fixing block 19. A threaded column 21 is threadedly installed on the inner wall of the screw hole 20, and a camera 22 is fixedly connected to the lower end of the threaded column 21.

[0027] See also Figure 1 In this embodiment, the rear end surface of the inner wall of the first U-shaped plate 7 is flush with the rear end surface of the inner wall of the first trough body 3 , and the height of the first movable plate 8 is less than the height of the first U-shaped plate 7 .

[0028] In this embodiment: when in use, multiple force sensors are stacked and placed in the space surrounded by the first U-shaped plate 7 and the first movable plate 8. The force sensors will fall into the first slot 3 through the inside of the first U-shaped plate 7, and then the second electric cylinder 11 is turned on so that the output shaft of the second electric cylinder 11 passes through the left end of the bearing plate 2 to push the force sensor in the direction of the support frame 15. The force sensors will push one by one, and finally the first force sensor will be pushed to the bottom of the support frame 15. Then, the wires are manually connected to the first force sensor and the sensor digital display 12, and the fourth electric cylinder 16 is turned on so that the lifting plate 17 moves downward, and finally the pressure plate 18 is pressed downward on the force sensor, and the pressure value detected by the force sensor will be displayed on the sensor digital display 12. The user can judge the quality of the force sensor according to the pressure value displayed by the sensor digital display 12. When the force sensor is qualified, the force sensor continues to move to the right, and finally falls into the second collection box 27 through the fourth slot 29 for temporary storage. When the force sensor is unqualified, when the force sensor moves to the rear of the second push plate 14, the third electric cylinder 13 is turned on to make the second push plate 14 move backward, so that the force sensor can be pushed backward into the inside of the through hole 5 and then fall down into the inside of the first collection box 26. The threaded column 21 is threadedly installed on the inner wall of the screw hole 20. The camera 22 can be turned on to record the appearance of the force sensor, which is convenient for test personnel to detect the appearance of the force sensor and observe defects on the force sensor.

[0029] Embodiment 2:

[0030] See also Figure 3-5 On the basis of the first embodiment, the utility model provides a technical solution: a second U-shaped plate 23 is movably provided on the upper end of the carrying plate 2, the opening of the second U-shaped plate 23 faces the first trough body 3, a second movable plate 24 is movably provided inside the second U-shaped plate 23, and evenly distributed rubber columns 25 are fixedly connected to the upper and lower ends of the second movable plate 24. The integrated structure formed by the second movable plate 24 and the rubber columns 25 is stacked inside the second U-shaped plate 23, and two handles 28 are fixedly connected to the side wall of the second collection box 27. The upper end surface of the second collection box 27 is fitted with the lower end surface of the carrying plate 2, and a fifth trough body 30 is opened at the right end of the carrying platform 1. A fifth electric cylinder 31 is fixedly connected to the inner wall of the fifth trough body 30, and a push block 32 is fixedly connected to the right end of the output shaft of the fifth electric cylinder 31. The push block 32 is located on the left side of the second collection box 27.

[0031] In this embodiment: when in use, hold the second movable plate 24 and place the integrated structure formed by the second movable plate 24 and the rubber column 25 into the interior of the second collection box 27, and then place the force sensor into the interior of the second collection box 27. The force sensor will fall on the upper ends of the multiple rubber columns 25. The multiple rubber columns 25 can provide buffering protection for the force sensor, and the force sensor can be stored in intervals through the integrated structure formed by the second movable plate 24 and the rubber column 25. The handheld handle 28 can facilitate the movement of the second collection box 27. The upper end surface of the second collection box 27 and the lower end surface of the supporting plate 2 are arranged in a close fit, which facilitates the force sensor to quickly and stably fall into the interior of the second collection box 27 through the fourth groove body 29 for temporary storage. When the second collection box 27 needs to be moved to the right, the fifth electric cylinder 31 is turned on to move the push block 32 to the right, which can facilitate the movement of the second collection box 27 to the right, thereby facilitating the replacement of the second collection box 27.

[0032] Working principle: First, a plurality of force sensors are stacked and placed in the space enclosed by the first U-shaped plate 7 and the first movable plate 8. The force sensors will fall into the first trough 3 through the inside of the first U-shaped plate 7. Then, the second electric cylinder 11 is turned on so that the output shaft of the second electric cylinder 11 passes through the left end of the bearing plate 2 to push the force sensor in the direction where the support frame 15 is located. The threaded column 21 is threadedly installed on the inner wall of the screw hole 20. The camera 22 is turned on to record the appearance of the force sensor, which is convenient for test personnel to detect the appearance of the force sensor and observe defects on the force sensor.

[0033] Then, the force sensors will push one by one, and finally the first force sensor will be pushed to the right below the support frame 15, and then the wires will be manually connected to the first force sensor and the sensor digital display 12, and the fourth electric cylinder 16 will be turned on to make the lifting plate 17 move downward, and finally the pressure plate 18 will be pressed downward on the force sensor, and the pressure value detected by the force sensor will be displayed on the sensor digital display 12, so that the user can judge the quality of the force sensor according to the pressure value displayed by the sensor digital display 12;

[0034] When the force sensor is qualified, the force sensor continues to move to the right, and finally falls into the second collection box 27 through the fourth slot 29 for temporary storage. When the force sensor is unqualified, when the force sensor moves to the rear of the second push plate 14, the third electric cylinder 13 is turned on to make the second push plate 14 move backward, so that the force sensor can be pushed backward into the through hole 5 and then fall downward into the first collection box 26.

[0035] Hold the second movable plate 24 and place the integrated structure formed by the second movable plate 24 and the rubber column 25 into the second collection box 27, and then place the force sensor into the second collection box 27. The force sensor will fall on the upper end of the multiple rubber columns 25. The multiple rubber columns 25 can buffer and protect the force sensor, and the integrated structure formed by the second movable plate 24 and the rubber column 25 can store the force sensor in intervals.

[0036] When the second collection box 27 needs to be moved to the right, the fifth electric cylinder 31 is turned on to move the push block 32 to the right, so that the second collection box 27 can be moved to the right conveniently, thereby facilitating the replacement of the second collection box 27 .

Claims

1. A mechanical verification and calibration test bench, comprising a bearing platform (1); characterized in that: The upper end of the carrier platform (1) is fixedly connected to a carrier plate (2), the upper end of the carrier plate (2) is provided with a first trough body (3), the rear end surface of the inner wall of the first trough body (3) is provided with a waste groove (4), the bottom surface of the inner wall of the waste groove (4) is penetrated with a through hole (5), the front end surface of the inner wall of the first trough body (3) is provided with a third trough body (6), the left end edge of the upper end of the carrier plate (2) is fixedly connected to a first U-shaped plate (7), the inner walls of both sides of the first U-shaped plate (7) are movably provided with first movable plates (8), the upper end of the carrier plate (2) is fixedly connected to a first electric cylinder (9), the rear end of the output shaft of the first electric cylinder (9) is fixedly connected to a first push plate (10), the left end of the carrier plate (2) is fixedly connected to a second electric cylinder (11), the output shaft of the second electric cylinder (11) penetrates the left end of the carrier plate (2) and extends to the inside of the first trough body (3), and the upper end of the carrier plate (2) is movably provided with a sensor The third trough (6) is provided with a digital display instrument (12), a third electric cylinder (13) is fixedly connected to the bottom surface of the inner wall of the third trough (6), a second push plate (14) is fixedly connected to the rear end of the output shaft of the third electric cylinder (13), the third trough (6) is located directly in front of the waste trough (4), a support frame (15) is fixedly connected to the upper end of the support platform (1), a fourth electric cylinder (16) is fixedly connected to the upper end of the support frame (15), and the lower end of the output shaft of the fourth electric cylinder (16) passes through the support frame (15). The frame (15) is fixedly connected to a lifting plate (17), the lower end of the lifting plate (17) is fixedly connected to a pressure plate (18), the bottom surface of the inner wall of the first trough body (3) is penetrated by a fourth trough body (29), a first collection box (26) and a second collection box (27) are movably arranged below the supporting plate (2), the inner wall of the second collection box (27) is flush with the inner wall of the fourth trough body (29), and the first collection box (26) is located below the through hole (5).

2. A mechanical verification and calibration test bench according to claim 1, characterized in that: The two sides of the first push plate (10) are in contact with the two inner walls of the first U-shaped plate (7), and the two sides of the second push plate (14) are in contact with the two side surfaces of the inner wall of the third trough body (6).

3. A mechanical verification and calibration test bench according to claim 1, characterized in that: The left end of the support frame (15) is fixedly connected with a fixing block (19), the upper end of the fixing block (19) is penetrated with evenly distributed screw holes (20), the inner wall of the screw hole (20) is threadedly installed with a threaded column (21), and the lower end of the threaded column (21) is fixedly connected with a camera (22).

4. A mechanical verification and calibration test bench according to claim 1, characterized in that: A second U-shaped plate (23) is movably provided at the upper end of the bearing plate (2), the opening of the second U-shaped plate (23) faces the first trough body (3), a second movable plate (24) is movably provided inside the second U-shaped plate (23), upper and lower ends of the second movable plate (24) are fixedly connected with uniformly distributed rubber columns (25), and an integrated structure formed by the second movable plate (24) and the rubber columns (25) is stacked and placed inside the second U-shaped plate (23).

5. The mechanical verification and calibration test bench according to claim 1, characterized in that: Two handles (28) are fixedly connected to the side wall of the second collection box (27), and the upper end surface of the second collection box (27) is in close contact with the lower end surface of the carrying plate (2).

6. A mechanical verification and calibration test bench according to claim 1, characterized in that: The rear end surface of the inner wall of the first U-shaped plate (7) is flush with the rear end surface of the inner wall of the first trough body (3), and the height of the first movable plate (8) is smaller than the height of the first U-shaped plate (7).

7. A mechanical verification and calibration test bench according to claim 1, characterized in that: A fifth trough (30) is provided at the right end of the support platform (1), a fifth electric cylinder (31) is fixedly connected to the inner wall of the fifth trough (30), a push block (32) is fixedly connected to the right end of the output shaft of the fifth electric cylinder (31), and the push block (32) is located on the left side of the second collection box (27).