Multi-dimensional force sensor testing device

Abstract

The utility model relates to a multidimensional force sensor testing device, which comprises a bottom plate, a multidimensional force sensor body, a mounting mechanism, a connector and a tester, and is characterized in that the multidimensional force sensor body to be tested is placed in a mounting groove of a mounting disc, a push plate is pushed to move through two air cylinders, and the push plate drives a moving plate to move, so that the mounting disc moves; an air cylinder pushes a push plate, a driving piece controls a mounting disc to rotate, the sensor is adjusted to the optimal testing angle, an electric push rod drives a contact plate to press downwards, the contact plate is tightly attached to the contact face of the top of the sensor, the actual stress condition is simulated, and after the sensor is stressed, an electric signal is output and transmitted to a detector through a connector. The detector processes signals in real time and displays test data on the digital display screen, and if the detector does not display data, the detected multi-dimensional force sensor body fails, so that whether the multi-dimensional force sensor body operates normally or not is judged.

Description

Technical Field

[0001] This utility model relates to the field of sensor testing equipment technology, specifically a multi-dimensional force sensor testing device. Background Technology

[0002] Multidimensional force sensors are widely used in industrial automation, robotics, aerospace and other fields to measure the force and torque of an object in multiple directions. In the current technology, a single test mode is used, which is inefficient and makes it difficult to achieve batch testing of multiple sensors. There are problems such as insufficient stability and cumbersome operation in the sensor installation, positioning and testing process, which affect the test accuracy and efficiency.

[0003] For example, the authorized patent document with application number CN202221834922.9 discloses a sensor testing device, which relates to the field of artificial intelligence technology, and particularly to the field of autonomous driving. The specific implementation is as follows: the sensor testing device includes a frame and a position adjustment mechanism. The frame has a first end and a second end arranged along a first horizontal direction; the position adjustment mechanism includes at least one of a first position adjustment mechanism, a second position adjustment mechanism, and a third position adjustment mechanism; the first position adjustment mechanism is disposed at the top of the frame and is used to install the antenna of an inertial navigation device and adjust the position of the antenna along the first horizontal direction; the second position adjustment mechanism is disposed at the top of the frame and is used to install a lidar and adjust the position of the lidar along the vertical direction and its pitch angle relative to the horizontal plane; the third position adjustment mechanism is disposed at the first end of the frame and is used to install an image acquisition device and adjust the pitch angle of the image acquisition device relative to the horizontal plane.

[0004] The aforementioned patents suffer from low efficiency due to their use of a single testing mode and difficulty in achieving batch testing of multiple sensors. Therefore, we need to provide a multi-dimensional force sensor testing device. Utility Model Content

[0005] The purpose of this invention is to provide a multi-dimensional force sensor testing device. The dual mounting mechanism, in conjunction with the pushing mechanism, can quickly switch the testing position, enabling continuous or parallel testing of multiple sensors, thus significantly improving efficiency and solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-dimensional force sensor testing device, comprising:

[0007] The base plate, multi-dimensional force sensor bodies, mounting mechanisms, connectors, and a tester are provided. The top of the base plate is provided with two mounting mechanisms for placing several multi-dimensional force sensor bodies, and the top of each mounting mechanism is provided with a connector corresponding to the several multi-dimensional force sensor bodies.

[0008] The tester includes an electric push rod, a contact plate, and a detector. The top of the base plate is equipped with a detector with a digital display screen. The detector is electrically connected to several connectors. The bottom of the detector is equipped with a contact plate via the electric push rod. The contact plate is used to fit against the contact surface on the top of the multidimensional force sensor body.

[0009] Preferably, the mounting mechanism includes a mounting plate, a mounting slot, a slot body, a locking block, and a spring device. The top of the mounting plate has several mounting slots arranged in a ring for storing the multi-dimensional force sensor body. Slot bodies are provided on both sides of the mounting slots, and locking blocks are installed inside the two slot bodies through spring devices.

[0010] Preferably, it further includes a pushing mechanism for moving the two mounting mechanisms. The pushing mechanism includes a moving plate, cylinders, and a push plate. Two cylinders are fixedly mounted on the top of the base plate, and push plates are fixedly mounted on the extended ends of the two cylinders. The top of the push plate is fixedly mounted on the bottom of the moving plate.

[0011] Preferably, limit frames are slidably installed on both sides of the push plate, and the bottom of both limit frames are fixedly installed on the top of the base plate to limit the movement range of the push plate.

[0012] Preferably, it also includes a sliding component for stabilizing the movement of the movable plate. The sliding component includes a pulley assembly and a groove. The top of the base plate is provided with pulley assemblies on both sides, and the bottom of the movable plate is provided with a groove for sliding the two pulley assemblies.

[0013] Preferably, the movable plate is provided with a driving component for rotating the mounting plate. The driving component includes a motor, columns, balls, and an annular groove. Two motors are installed inside the movable plate. The output ends of the two motors are respectively installed at the bottom of the two mounting plates. The bottom of the mounting plate is provided with an annular groove. Several columns are distributed in a ring on the top of the motors. A ball is rotatably installed on the top of each column. The balls are all located in the annular groove.

[0014] Preferably, the adjacent ends of the two card blocks are both set to be arc-shaped.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model features a dual mounting mechanism in conjunction with a pushing mechanism, which allows for rapid switching of test positions and enables continuous or parallel testing of multiple sensors, significantly improving efficiency. The detector directly acquires sensor signals through a connector, and the digital display provides real-time feedback, enhancing the accuracy and readability of test results. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 This is a perspective view of the propulsion mechanism of this utility model;

[0019] Figure 3 This is a three-dimensional sectional view of the installation mechanism of this utility model;

[0020] Figure 4 This is an exploded perspective view of the driving component of this utility model.

[0021] In the diagram: 1. Base plate; 2. Multi-dimensional force sensor body; 3. Mounting mechanism; 31. Mounting plate; 32. Mounting groove; 33. Groove body; 34. Locking block; 35. Spring; 4. Connector; 5. Tester; 51. Electric push rod; 52. Contact plate; 53. Detector; 6. Pushing mechanism; 61. Moving plate; 62. Cylinder; 63. Push plate; 7. Limiting frame; 8. Sliding component; 81. Pulley block; 82. Slide groove; 9. Driving component; 91. Motor; 92. Column; 93. Ball; 94. Annular groove. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-4 This utility model provides a technical solution: a multi-dimensional force sensor testing device, comprising:

[0024] The base plate 1, the multi-dimensional force sensor body 2, the mounting mechanism 3, the connector 4 and the tester 5 are provided. The top of the base plate 1 is provided with two mounting mechanisms 3 for placing several multi-dimensional force sensor bodies 2. The top of the mounting mechanism 3 is provided with connectors 4 corresponding to several multi-dimensional force sensor bodies 2.

[0025] The tester 5 includes an electric push rod 51, a contact plate 52 and a detector 53. The top of the base plate 1 is equipped with a detector 53 with a digital display screen. The detector 53 is electrically connected to several connectors 4. The bottom of the detector 53 is equipped with a contact plate 52 via the electric push rod 51. The contact plate 52 is used to fit against the contact surface at the top of the multidimensional force sensor body 2.

[0026] Specifically, the dual mounting mechanism 3, in conjunction with the pushing mechanism 6, can quickly switch test positions to achieve continuous or parallel testing of multiple sensors, greatly improving efficiency. The detector 53 directly acquires sensor signals through the connector 4, and the digital display screen provides real-time feedback, improving the accuracy and readability of test results. Through mechanical automation and structural optimization, the efficiency, accuracy, and stability issues in multi-dimensional force sensor testing are solved, making it suitable for industrial batch testing scenarios.

[0027] The mounting mechanism 3 includes a mounting plate 31, a mounting groove 32, a groove body 33, a locking block 34, and a spring device 35. The top of the mounting plate 31 has several mounting grooves 32 arranged in a ring for storing the multi-dimensional force sensor body 2. A groove body 33 is provided on both sides of the mounting groove 32. The locking block 34 is installed inside the two groove bodies 33 through the spring device 35.

[0028] In this embodiment, the multidimensional force sensor body 2 to be tested is placed in the mounting groove 32 of the mounting plate 31. The spring 35 pushes the locking block 34 to move within the groove 33, automatically clamping both sides of the sensor. This, combined with the mounting groove 32, ensures stable fixation and prevents displacement during testing. Two cylinders 62 push the push plate 63, which in turn moves the moving plate 61, thus moving the mounting plate 31 and aligning the sensor with the test position. The cylinders 62 push the push plate 63, causing the moving plate 61 to slide smoothly along the pulley group 81 and the slide groove 82, preventing displacement. The limiting frame 7 ensures the smooth operation of the push plate. The plate 63 moves within a precise range to prevent overtravel. The drive unit 9 controls the rotation of the mounting plate 31 to adjust the sensor to the optimal test angle. The electric push rod 51 drives the contact plate 52 to press down, making it fit tightly against the contact surface on the top of the sensor to simulate the actual force. After the sensor is subjected to force, it outputs an electrical signal, which is transmitted to the detector 53 through the connector 4. The detector 53 processes the signal in real time and displays the test data on the digital display screen. If the detector 53 does not display data, the multi-dimensional force sensor body 2 being tested is faulty, thus determining whether the multi-dimensional force sensor body 2 is operating normally.

[0029] After a sensor is tested: the electric push rod 51 retracts and the contact plate 52 is raised; the motor 91 rotates the mounting plate 31 to replace the next multi-dimensional force sensor body 2 under the contact plate 52. After all the multi-dimensional force sensor bodies 2 on a mounting plate 31 have been tested, the push mechanism 6 adjusts another mounting plate 31 to move to the testing area for testing.

[0030] While testing multiple multi-dimensional force sensor bodies 2 on one mounting plate 31 one by one, the multi-dimensional force sensor bodies 2 to be tested are installed on another mounting plate 31. The length of the motor 91 connection line is sufficient for the horizontal movement of the motor 91, and the horizontal movement distance of the moving plate 61 is relatively short.

[0031] It also includes a pushing mechanism 6 for moving the two mounting mechanisms 3. The pushing mechanism 6 includes a moving plate 61, a cylinder 62 and a push plate 63. Two cylinders 62 are fixedly mounted on the top of the base plate 1, and a push plate 63 is fixedly mounted on the extended end of the two cylinders 62. The top of the push plate 63 is fixedly mounted on the bottom of the moving plate 61.

[0032] Furthermore, with both cylinders 62 in the retracted state and the mounting plate 31 in the initial position (test starting point), a multi-dimensional force sensor body 2 on one side of the mounting plate 31 is located directly below the contact plate 52. When both cylinders 62 are in the extended state, the multi-dimensional force sensor body 2 on the other mounting plate 31 is located directly below the contact plate 52. When cylinder 62 is activated, the extended end of cylinder 62 extends, pushing the push plate 63 to move in a straight line. The push plate 63 drives the moving plate 61 and the mounting plate 31 to move synchronously, so that the multi-dimensional force sensor body 2 under test enters the test position, ensuring that the sensor is accurately aligned with the contact plate 52 and avoiding misalignment that affects the test accuracy. The air inlet and exhaust port of the two cylinders 62 are connected through parallel air circuits and equipped with a synchronization valve or throttle valve to ensure that the air pressure and flow are consistent, so that the two cylinders 62 are synchronized cylinders 62.

[0033] Limiting frames 7 are slidably installed on both sides of the push plate 63. The bottom of both limiting frames 7 is fixedly installed on the top of the base plate 1 to limit the movement range of the push plate 63.

[0034] Two limiting frames 7 are set to restrict the push plate 63 to prevent excessive movement of the push plate 63.

[0035] It also includes a sliding member 8 for the stable movement of the movable plate 61. The sliding member 8 includes a pulley group 81 and a groove 82. The pulley group 81 is provided on both sides of the top of the base plate 1, and the bottom of the movable plate 61 is provided with a groove 82 for the sliding of the two pulley groups 81.

[0036] It is worth noting that when the cylinder 62 is not activated, the moving plate 61 is supported by the pulley block 81, which reduces static friction and prevents jamming. The pulley block rolls in the slide groove 82, converting sliding friction into rolling friction, making the moving plate 61 run more smoothly. The rolling trajectory of the pulley block 81 in the slide groove 82 is strictly limited to prevent the moving plate 61 from deviating or tilting during movement. The pulley block 81 converts sliding friction into rolling friction, making the moving plate 61 move with less effort, reducing the load on the cylinder 62, and extending its service life.

[0037] The movable plate 61 is internally provided with a drive component 9 for rotating the mounting plate 31. The drive component 9 includes a motor 91, a column 92, a ball 93, and an annular groove 94. Two motors 91 are installed inside the movable plate 61. The output ends of the two motors 91 are respectively installed at the bottom of the two mounting plates 31. The bottom of the mounting plate 31 is provided with an annular groove 94. Several columns 92 are distributed in an annular shape on the top of the motors 91. A ball 93 is rotatably installed on the top of each column 92. The balls 93 are all located in the annular groove 94.

[0038] It should be noted that when the motor 91 is stopped, the mounting plate 31 is fixed, and the ball 93 is in contact with the annular groove 94 but does not generate relative movement. The ball 93 rolls freely in the annular groove 94, ensuring that the mounting plate 31 can rotate smoothly when driven by the motor 91. When the motor 91 is started, the output shaft of the motor 91 drives the column 92 to rotate. The ball 93 at the top of the column 92 rolls in the annular groove 94, pushing the mounting plate 31 to rotate around the central axis. Since the rolling friction of the ball 93 is extremely small, the rotational resistance of the mounting plate 31 is low and the rotation is smooth. By controlling the rotation angle of the motor 91 (45°), it can be rotated to the next station to test the sensor under test, realizing batch automated testing.

[0039] Both card blocks 34 have their adjacent ends set to arc shape;

[0040] Among them, the arc-shaped design at the end of the card block 34 can be adapted to sensors of different sizes, thus improving compatibility.

[0041] Motor 91 is a stepper motor, model: 57HS22; Electric actuator 51 is model: Ti MOT ION TL10; Cylinder 62 is model: Airtac SC series dual-axis cylinder 62; Detector 53 (force signal acquisition) model: NI USB-6009; Controller model: Siemens S7-1200.

[0042] The device places the multidimensional force sensor body 2 to be tested into the mounting slot 32 of the mounting plate 31. The spring 35 pushes the locking block 34 to move within the slot 33, automatically clamping both sides of the sensor. This, combined with the mounting slot 32, ensures stable fixation and prevents displacement during testing. Two cylinders 62 push the push plate 63 to move, which in turn moves the moving plate 61, thus moving the mounting plate 31 to align the sensor with the test position. The cylinders 62 push the push plate 63, causing the moving plate 61 to slide smoothly along the pulley group 81 and the slide groove 82, preventing displacement. The limiting frame 7 ensures that the push plate 61... 3. The movement range is precise to prevent overtravel. The drive component 9 controls the rotation of the mounting plate 31 to adjust the sensor to the optimal test angle. The electric push rod 51 drives the contact plate 52 to press down, so that it fits tightly with the contact surface on the top of the sensor to simulate the actual force. After the sensor is subjected to force, it outputs an electrical signal, which is transmitted to the detector 53 through the connector 4. The detector 53 processes the signal in real time and displays the test data on the digital display screen. If the detector 53 does not display data, the multi-dimensional force sensor body 2 under test is faulty, thereby determining whether the multi-dimensional force sensor body 2 is operating normally.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-dimensional force sensor testing apparatus, characterized by, Include: The bottom plate (1), multi-dimensional force sensor body (2), mounting mechanism (3), connector (4) and tester (5), the top of the bottom plate (1) is provided with two mounting mechanisms (3) for placing several multi-dimensional force sensor bodies (2), the top of the mounting mechanism (3) is provided with a connector (4) corresponding to several multi-dimensional force sensor bodies (2); The tester (5) includes an electric push rod (51), a contact plate (52) and a detector (53), the top of the bottom plate (1) is provided with a detector (53) with a digital display screen, the detector (53) is electrically connected with several connectors (4), the bottom of the detector (53) is provided with a contact plate (52) through an electric push rod (51), and the contact plate (52) is used for abutting the contact surface on the top of the multi-dimensional force sensor body (2).

2. A multi-dimensional force sensor testing device according to claim 1, characterized in that: The mounting mechanism (3) includes a mounting disc (31), a mounting groove (32), a groove body (33), a clamping block (34) and a spring device (35), the top of the mounting disc (31) is annularly distributed with several mounting grooves (32) for storing multi-dimensional force sensor bodies (2), both sides of the mounting groove (32) are provided with a groove body (33), and the inside of the two groove bodies (33) is provided with a clamping block (34) through a spring device (35).

3. The multi-dimensional force sensor testing device of claim 1, wherein: It also includes a pushing mechanism (6) for moving the two mounting mechanisms (3), the pushing mechanism (6) includes a moving plate (61), a gas cylinder (62) and a push plate (63), the top of the bottom plate (1) is fixedly provided with two gas cylinders (62), the extending ends of the two gas cylinders (62) are fixedly provided with a push plate (63), and the top of the push plate (63) is fixedly installed on the bottom of the moving plate (61).

4. A multi-dimensional force sensor testing device according to claim 3, wherein: The two sides of the push plate (63) are slidably provided with a limiting frame (7), and the bottoms of the two limiting frames (7) are fixedly installed on the top of the bottom plate (1) to limit the moving range of the push plate (63).

5. The multi-dimensional force sensor testing device of claim 1, wherein: It also includes a sliding piece (8) for stable movement of the moving plate (61), the sliding piece (8) includes a pulley block (81) and a sliding groove (82), both sides of the top of the bottom plate (1) are provided with a pulley block (81), and the bottom of the moving plate (61) is provided with a sliding groove (82) for sliding of the two pulley blocks (81).

6. A multi-dimensional force sensor testing device according to claim 4, wherein: The inside of the moving plate (61) is provided with a driving piece (9) for rotating the mounting disc (31), the driving piece (9) includes a motor (91), a column body (92), a rolling ball (93) and an annular groove (94), two motors (91) are installed in the inside of the moving plate (61), the output ends of the two motors (91) are respectively installed on the bottoms of the two mounting discs (31), the bottom of the mounting disc (31) is provided with an annular groove (94), the top of the motor (91) is annularly distributed with a plurality of column bodies (92), the tops of the plurality of column bodies (92) are rotatably provided with rolling balls (93), and the plurality of rolling balls (93) are located in the annular groove (94).

7. The multi-dimensional force sensor testing device of claim 2, wherein: The adjacent ends of the two clamping blocks (34) are provided in an arc shape.

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