Limit value testing device for multi-dimensional force sensor

Abstract

The utility model relates to the technical field of testing, and discloses a multi-dimensional force sensor limit value testing device which comprises a rack, a pressure testing machine and a bottom frame, an adjusting mechanism is arranged on the bottom frame, an auxiliary mechanism is arranged on the adjusting mechanism, and the adjusting mechanism comprises a deploying frame. The deploying frame is rotationally connected to the outer wall of the top of the bottom frame through a bearing, the inner wall of the top of the deploying frame is slidably connected with a clamp, the outer wall of the side face of the clamp is in contact connection with a sensor body, the outer wall of the rear side of the rack is fixedly connected with a hydraulic cylinder, and the output end of the hydraulic cylinder is fixedly connected with a toothed plate; a tooth groove is formed in the outer wall of the side face of the blending frame. According to the utility model, through the arrangement of the fixture, the toothed plate and other structures, a plurality of pressure testing machines do not need to be installed, and the sensor is subjected to multi-dimensional pressure test corresponding to the testing direction, so that the pressure testing plate can quickly perform pressure test on the sensor surfaces of different surfaces.

Description

Technical Field

[0001] This utility model relates to the field of testing technology, and in particular to a multi-dimensional force sensor limit numerical testing device. Background Technology

[0002] Vili sensors accurately sense and control the core of "force," simultaneously capturing forces in the X, Y, and Z directions, including torque. A single sensor can reconstruct complex force states, offering high precision, high response, and strong anti-interference capabilities, ensuring that every bit of force is under control.

[0003] Force sensor limit numerical testing aims to evaluate the performance of a sensor under conditions exceeding its normal operating range, such as extreme overload and extreme temperatures, including key indicators such as accuracy, stability, and response time, to ensure the reliability and safety of the sensor under extreme conditions. It is used to apply forces or torques of different directions and magnitudes to the force sensor, which typically involves sophisticated electric or hydraulic loading devices capable of precisely controlling the magnitude and direction of the load.

[0004] The multidimensional force sensor limit numerical testing device has the following drawbacks: when performing multi-face compressive strength testing on a multidimensional force sensor, multiple hydraulic devices need to be installed to test the sensor in multiple directions, resulting in a complex overall structure of the testing device, which is prone to failure and high maintenance costs. Therefore, a multidimensional force sensor limit numerical testing device is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a multi-dimensional force sensor limit numerical testing device, which aims to improve the problem that the existing technology requires the installation of multiple hydraulic devices to test the sensor in multiple directions when performing multi-dimensional force sensor multi-face compressive strength testing, resulting in a complex overall structure of the testing device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a multi-dimensional force sensor limit value testing device, comprising a frame, a pressure testing machine, and a base frame. An adjustment mechanism is provided on the base frame, and an auxiliary mechanism is provided on the adjustment mechanism. The adjustment mechanism includes an adjustment frame, which is rotatably connected to the top outer wall of the base frame via bearings. A clamp is slidably connected to the top inner wall of the adjustment frame, and a sensor body is contacted and connected to the side outer wall of the clamp. A hydraulic cylinder is fixedly connected to the rear outer wall of the frame, and a toothed plate is fixedly connected to the output end of the hydraulic cylinder. A toothed groove is formed on the side outer wall of the adjustment frame, and a pressure testing plate is fixedly connected to the output end of the pressure testing machine.

[0007] As a further description of the above technical solution: the auxiliary mechanism includes a bidirectional threaded rod, which is rotatably connected to the inner walls of the front and rear sides of the mixing frame via bearings. A polygonal plate is slidably connected to the inner side of the bidirectional threaded rod. A polygonal groove is formed on the outer front side of the mixing frame. A compression spring is fixedly connected to the outer front side of the polygonal plate. An arc-shaped tooth is rotatably connected to the inner bottom of the clamp.

[0008] As a further description of the above technical solution: there are two clamps, which are symmetrical to each other, and the sensor body is attached to the top outer wall of the mixing frame.

[0009] As a further description of the above technical solution: the toothed plate is engaged with the inner wall of the tooth groove, and the toothed plate is slidably connected to the top outer wall of the base frame.

[0010] As a further description of the above technical solution: a wear-resistant pad is fixedly connected to the outer wall of the pressure test plate near the sensor body, and the pressure test plate is in contact with the outer wall of the side of the sensor body.

[0011] As a further description of the above technical solution: the bidirectional threaded rod penetrates the front outer wall of the adjusting frame, and both clamps are threadedly connected to the bidirectional threaded rod.

[0012] As a further description of the above technical solution: the polygonal plate is snapped onto the front inner wall of the polygonal groove, and the end of the compression spring away from the polygonal plate is fixedly connected to the front inner wall of the bidirectional threaded rod.

[0013] As a further description of the above technical solution: the pressure testing machine is fixedly connected to the front outer wall of the frame, and the base frame is fixedly connected to the front outer wall of the frame.

[0014] As a further description of the above technical solution: the toothed plate is slidably connected to the front outer wall of the frame, and the toothed grooves are annularly formed on the bottom outer wall of the mixing frame.

[0015] As a further description of the above technical solution: the outer side wall of the polygonal plate is provided with directional marks.

[0016] This utility model has the following beneficial effects:

[0017] 1. In this utility model, by setting up structures such as clamps, toothed plates, and adjustment frames, it is not necessary to install multiple pressure testing machines to perform multi-dimensional adjustment pressure testing on the sensor in the corresponding test direction, so that the pressure testing plate can quickly perform pressure testing on the sensor surface on different sides.

[0018] 2. In this utility model, by setting up structures such as bidirectional threaded rods, polygonal plates, and polygonal grooves, sensors of different test sizes are clamped and fixed in an auxiliary manner, reducing the displacement and loosening of sensors during pressure testing, which would affect the accuracy of the final pressure test values. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall front view of a multidimensional force sensor limit numerical testing device proposed in this utility model.

[0020] Figure 2 This is a side view schematic diagram of a multidimensional force sensor limit numerical testing device proposed in this utility model;

[0021] Figure 3 This is a bottom view schematic diagram of a multidimensional force sensor limit numerical testing device proposed in this utility model;

[0022] Figure 4 This is a schematic diagram of the auxiliary mechanism of a multidimensional force sensor limit numerical testing device proposed in this utility model.

[0023] Legend:

[0024] 1. Frame; 2. Pressure testing machine; 3. Base frame; 4. Adjustment mechanism; 41. Adjustment frame; 42. Fixture; 43. Sensor body; 44. Hydraulic cylinder; 45. Toothed plate; 46. Toothed groove; 47. Pressure testing plate; 5. Auxiliary mechanism; 51. Bidirectional threaded rod; 52. Polygonal plate; 53. Polygonal groove; 54. Compression spring; 55. Arc-shaped tooth. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figures 1-3This utility model provides an embodiment of a multidimensional force sensor limit value testing device, including a frame 1, a pressure testing machine 2, and a base frame 3. An adjustment mechanism 4 is mounted on the base frame 3, and an auxiliary mechanism 5 is mounted on the adjustment mechanism 4. The adjustment mechanism 4 includes an adjustment frame 41, which is rotatably connected to the top outer wall of the base frame 3 via bearings. A clamp 42 is slidably connected to the top inner wall of the adjustment frame 41. The clamp 42 clamps and fixes the sensor body 43. The side outer wall of the clamp 42 is in contact with a transmission... The sensor body 43 is fixedly connected to the rear outer wall of the frame 1 by a hydraulic cylinder 44. The hydraulic cylinder 44 drives the toothed plate 45 to move left and right for adjustment. The output end of the hydraulic cylinder 44 is fixedly connected to the toothed plate 45. The side outer wall of the mixing frame 41 is provided with a toothed groove 46. The output end of the pressure testing machine 2 is fixedly connected to a pressure testing plate 47. The pressure testing plate 47 is used to perform pressure testing on the sensor body 43. The toothed plate 45 is slidably connected to the front outer wall of the frame 1. The toothed groove 46 is circumferentially opened on the bottom outer wall of the mixing frame 41.

[0027] Reference Figures 2-4 There are two clamps 42, which are symmetrical to each other. The sensor body 43 is attached to the top outer wall of the mixing frame 41. The toothed plate 45 is engaged with the inner wall of the toothed groove 46. The toothed plate 45 is slidably connected to the top outer wall of the base frame 3. A wear-resistant pad is fixedly connected to the outer wall of the pressure test plate 47 near the sensor body 43. The wear-resistant pad increases the wear resistance of the pressure test plate 47 surface. The pressure test plate 47 is contacted and connected to the side outer wall of the sensor body 43. The pressure tester 2 is fixedly connected to the front outer wall of the frame 1. The base frame 3 is fixedly connected to the front outer wall of the frame 1.

[0028] Reference Figures 3-4The auxiliary mechanism 5 includes a bidirectional threaded rod 51, which is rotatably connected to the inner walls of the front and rear sides of the mixing frame 41 via bearings. A polygonal plate 52 is slidably connected to the inner wall of the side of the bidirectional threaded rod 51. By setting the polygonal plate 52 and the polygonal groove 53 to cooperate with each other, the rotation direction of the bidirectional threaded rod 51 is limited. A polygonal groove 53 is opened on the outer front wall of the mixing frame 41. A compression spring 54 is fixedly connected to the outer front wall of the polygonal plate 52. An arc-shaped tooth 55 is rotatably connected to the inner bottom wall of the clamp 42. By setting the arc-shaped tooth 55, the curvature of the surface of the sensor body 43 of different sizes is adjusted according to the clamping time. The contact angle of the contact surface is adaptively adjusted to maximize the contact surface between the arc-shaped tooth 55 and the sensor body 43. The bidirectional threaded rod 51 passes through the front outer wall of the adjustment frame 41. Both clamps 42 are threadedly connected to the bidirectional threaded rod 51. The two clamps 42 can be moved and adjusted simultaneously by setting the bidirectional threaded rod 51. The polygonal plate 52 is snapped into the front inner wall of the polygonal groove 53. The end of the compression spring 54 away from the polygonal plate 52 is fixedly connected to the front inner wall of the bidirectional threaded rod 51. The side outer wall of the polygonal plate 52 is provided with a directional mark to indicate the rotation direction of the polygonal plate 52.

[0029] Working principle: By placing sensor bodies 43 of different sizes on the adjustment frame 41, the polygonal plate 52 is pulled away from the polygonal groove 53. Then, the polygonal plate 52 is rotated to rotate the bidirectional threaded rod 51. The rotation of the bidirectional threaded rod 51 causes the two clamps 42 to move closer together, so that the arc-shaped teeth 55 on the two clamps 42 are in contact with the arc surface of the sensor body 43. Then, the polygonal plate 52 is reinserted into the polygonal groove 53 to clamp and fix the sensor body 43. Then, the pressure testing machine 2 is turned on to make the pressure testing plate 47... The pressure test plates 47 are brought closer together to perform a pressure test on the sensor body 43. After the previous test is completed, the hydraulic cylinder 44 is activated to move the toothed plate 45. The movement of the toothed plate 45 causes the toothed groove 46 to move, which in turn causes the adjusting frame 41 to rotate. The rotation of the adjusting frame 41 causes the sensor body 43 to adjust its direction and angle. Then, the pressure test machine 2 is activated again to bring the pressure test plates 47 closer together to perform a pressure test on the sensor body 43, thus performing a multi-dimensional pressure test on the sensor body 43.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-dimensional force sensor limit value testing device, comprising a rack (1), a pressure testing machine (2), a chassis (3), characterized in that: An adjustment mechanism (4) is provided on the base frame (3), and an auxiliary mechanism (5) is provided on the adjustment mechanism (4); The adjustment mechanism (4) includes a mixing frame (41), which is rotatably connected to the top outer wall of the base frame (3) via a bearing. A clamp (42) is slidably connected to the top inner wall of the mixing frame (41). A sensor body (43) is contacted and connected to the side outer wall of the clamp (42). A hydraulic cylinder (44) is fixedly connected to the rear outer wall of the frame (1). A toothed plate (45) is fixedly connected to the output end of the hydraulic cylinder (44). A toothed groove (46) is opened on the side outer wall of the mixing frame (41). A pressure test plate (47) is fixedly connected to the output end of the pressure testing machine (2).

2. The multi-dimensional force sensor limit value testing device according to claim 1, characterized in that: The auxiliary mechanism (5) includes a bidirectional threaded rod (51), which is rotatably connected to the inner walls of the front and rear sides of the mixing frame (41) via bearings. A polygonal plate (52) is slidably connected to the inner wall of the side of the bidirectional threaded rod (51). A polygonal groove (53) is opened on the outer front wall of the mixing frame (41). A compression spring (54) is fixedly connected to the outer front wall of the polygonal plate (52). An arc-shaped tooth (55) is rotatably connected to the inner bottom wall of the clamp (42).

3. The multi-dimensional force sensor limit value testing device according to claim 1, characterized in that: There are two clamps (42), which are symmetrical to each other, and the sensor body (43) is attached to the top outer wall of the mixing frame (41).

4. The multi-dimensional force sensor limit value testing device according to claim 1, characterized in that: The toothed plate (45) is engaged with the inner wall of the toothed groove (46), and the toothed plate (45) is slidably connected to the top outer wall of the base frame (3).

5. The multi-dimensional force sensor limit value testing device according to claim 1, characterized in that: The pressure test plate (47) is fixedly connected to the outer wall of the side of the sensor body (43) with a wear-resistant pad, and the pressure test plate (47) is in contact with the outer wall of the side of the sensor body (43).

6. The multi-dimensional force sensor limit value testing device according to claim 2, characterized in that: The bidirectional threaded rod (51) penetrates the front outer wall of the adjusting frame (41), and both clamps (42) are threadedly connected to the bidirectional threaded rod (51).

7. The multi-dimensional force sensor limit value testing device according to claim 2, characterized in that: The polygonal plate (52) is snapped into the front inner wall of the polygonal groove (53), and the end of the compression spring (54) away from the polygonal plate (52) is fixedly connected to the front inner wall of the bidirectional threaded rod (51).

8. The multi-dimensional force sensor limit value testing device of claim 1, wherein: The pressure testing machine (2) is fixedly connected to the front outer wall of the frame (1), and the base frame (3) is fixedly connected to the front outer wall of the frame (1).

9. The multi-dimensional force sensor limit value testing device of claim 1, wherein: The toothed plate (45) is slidably connected to the front outer wall of the frame (1), and the toothed groove (46) is circumferentially opened on the bottom outer wall of the mixing frame (41).

10. The multi-dimensional force sensor limit value testing device of claim 2, wherein: The polygonal plate (52) has directional markings on its outer side wall.

Images