Batch testing device for sensors

Abstract

The application discloses a batch inspection test device of a sensor, relates to the field of test devices, and comprises a high-low temperature box, a plurality of placing plates are arranged in the high-low temperature box, a driving assembly for driving the placing plates to swing is arranged on the high-low temperature box, and a test assembly for batch calibration is arranged on the placing plates, wherein the rotating motor, the first swing connecting rod and the second swing connecting rod are cooperatively arranged, in use, the motion sensor is placed on the placing plate in batches, and the test assembly is used for testing, in the testing process, the rotating motor is started, the coupling drives the first swing connecting rod to rotate, the fixed bearing and the second swing connecting rod are cooperatively arranged, the placing plate is swung, and the test assembly is tested in the swinging process of the motion sensor, so that the problem that the sensor cannot be swung and the data performance of the sensor in the bumping process is difficult to test is avoided as much as possible, and the applicability is improved.

Description

Technical Field

[0001] This application relates to the field of testing apparatus, and in particular to batch testing apparatus for sensors. Background Technology

[0002] A motion sensor is a device that responds to physical motion and converts this response into electrical signals, which are then amplified and processed by electronic circuits. Physical motion has six degrees of freedom: translation along three orthogonal directions and rotation about three orthogonal axes. The former is measured using an accelerometer, and the latter using a gyroscope, which is the most common type of motion sensor. Motion sensors have a wide range of applications, providing positioning and navigation functions for vehicles such as airplanes, automobiles, and satellites, and can also be installed in portable devices to provide information such as attitude, speed, and position.

[0003] The invention patent with announcement number CN119714677A proposes a batch calibration and testing device for pressure sensors and a production line for pressure sensors. The batch calibration and testing device for pressure sensors includes a calibration component and an installation module. The calibration component includes a calibration table and multiple first data processing boards disposed on the calibration table. The calibration table is provided with a first detection pipeline. The surface of the first data processing board is attached to the upper surface of the calibration table, and each first data processing board is evenly disposed on the calibration table.

[0004] The aforementioned batch calibration test device and production line for pressure sensors cannot be oscillated during the testing process, making it difficult to test the sensor's data performance during vibration, thus reducing its applicability. Utility Model Content

[0005] To address the aforementioned issues, this application provides a batch inspection and testing apparatus for sensors.

[0006] The batch inspection and testing device for sensors provided in this application adopts the following technical solution:

[0007] A batch testing device for sensors includes a high and low temperature chamber. Multiple placement plates are provided inside the chamber. A drive assembly for swinging the placement plates is mounted on the chamber. Testing components for batch calibration are provided on the placement plates. The drive assembly includes multiple rotary motors mounted on one side wall of the high and low temperature chamber. A coupling is mounted on the output end of each rotary motor, and a first swing link is mounted on the other end of the coupling. One end of the first swing link passes through the high and low temperature chamber and is movably connected to the placement plate. Multiple fixed bearings are mounted on the side wall of the high and low temperature chamber away from the rotary motors. A second swing link is fixedly connected inside each fixed bearing, and the other end of the second swing link is movably connected to the placement plate.

[0008] By adopting the above technical solution, when in use, motion sensors are placed in batches on a placement plate and tested by a testing assembly. During the test, a rotary motor is started, causing the coupling to drive the first swing link to rotate. In conjunction with the fixed bearing and the second swing link, the placement plate swings, allowing the testing assembly to perform tests during the swing of the motion sensors. This minimizes the problem of not being able to swing the sensors, making it difficult to test the sensor's data performance during bumpy processes, which would reduce applicability.

[0009] Preferably, the high and low temperature chambers are equipped with support bushings located below the placement plate, and the top of each support bushing is movably connected to the placement plate.

[0010] By adopting the above technical solution, the placement plate can be supported by the support bushing, thereby improving the stability of the placement plate.

[0011] Preferably, the test assembly includes multiple U-shaped test fixtures respectively disposed on the upper surface of the placement plate. A pressure plate is fixedly connected inside the U-shaped test fixture. Multiple spring beads are installed on the lower surface of the pressure plate. Multiple placement slots for placing motion sensors are opened on the upper surface of the placement plate. The placement slots are respectively adapted to the spring beads. The placement plate and the U-shaped test fixture are provided with connecting components for easy assembly and disassembly.

[0012] By adopting the above technical solution, multiple motion sensors are placed into the placement slots, and then the U-shaped test fixture is installed on the placement plate through the connecting assembly. The pressure plate makes the spring beads fit against the motion sensors respectively, applies pressure to the motion sensors, and fixes the motion sensors. The U-shaped test fixture is used to perform batch calibration tests on the motion sensors.

[0013] Preferably, the connecting assembly includes insert blocks fixedly connected to both ends of the bottom of the U-shaped test fixture. Slots adapted to the insert blocks are provided at both ends of the upper surface of the placement plate. Threaded rods are rotatably connected to both ends of the placement plate. Moving plates are threadedly connected to the threaded rods. Two locking rods are fixedly connected to one side wall of the moving plate. Two locking holes are provided on one side wall of each insert block. The ends of the locking rods away from the moving plate pass through the placement plate and are inserted into the locking holes.

[0014] By adopting the above technical solution, the insert blocks are inserted into the slots respectively. Then, by rotating the threaded rod, the moving plate moves along the threaded rod in conjunction with the locking rod, bringing the moving plate close to the placement plate, so that the locking rod is inserted into the locking hole to fix the insert blocks and fix the U-shaped test fixture on the placement plate.

[0015] Preferably, positioning rods are fixedly connected to both ends of the placement plate, and the end of the positioning rod away from the placement plate passes through the movable plate and is fixedly connected to a limit block.

[0016] By adopting the above technical solution, the moving distance of the moving plate can be limited by the positioning rod and the limiting block, preventing the locking rod from detaching from the placement plate and causing the moving plate to rotate during the rotation of the threaded rod, making it difficult for the locking rod to penetrate the placement plate.

[0017] Preferably, the bottom of the high and low temperature chamber is equipped with multiple casters for easy movement.

[0018] By adopting the above technical solutions, the high and low temperature chamber can be easily moved and transported using casters.

[0019] In summary, this application includes at least one of the following beneficial technical effects:

[0020] 1. This application utilizes the coordinated arrangement of structures such as a rotary motor, a first swing link, and a second swing link. In use, motion sensors are placed in batches on a placement plate and tested by a testing assembly. During the test, the rotary motor is activated, causing the coupling to rotate the first swing link. This, in conjunction with the fixed bearing and the second swing link, causes the placement plate to swing. The testing assembly then performs tests during the swing of the motion sensors. This approach minimizes the problem of reduced applicability caused by the inability to swing the sensors, making it difficult to test the sensor's data performance during bumpy conditions.

[0021] 2. By placing multiple motion sensors into the placement slots and then installing the U-shaped test fixture onto the placement plate using the connecting assembly, the pressure plate will press the spring beads against the motion sensors, applying pressure to fix the motion sensors in place. The U-shaped test fixture will then be used to perform batch calibration tests on the motion sensors. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the batch inspection and testing device for sensors according to an embodiment of this application;

[0023] Figure 2 This is a schematic diagram illustrating the internal structure of the high and low temperature chamber, which is a key feature of this application.

[0024] Figure 3 The embodiments of this application mainly embody Figure 2 A schematic diagram of the enlarged structure of region A in the middle;

[0025] Figure 4 This is a schematic diagram illustrating the slot and plug structure, which are the main features of the embodiments of this application.

[0026] Reference numerals in the attached drawings: 1. High and low temperature chamber; 2. Placement plate; 3. Rotary motor; 4. Coupling; 5. First swing linkage; 6. Fixed bearing; 7. Second swing linkage; 8. Support bushing; 9. U-shaped test fixture; 10. Pressure plate; 11. Spring ball; 12. Placement slot; 13. Insert block; 14. Slot; 15. Moving plate; 16. Locking rod; 17. Locking hole; 18. Positioning rod; 19. Limiting block; 20. Threaded rod; 21. Caster wheel. Detailed Implementation

[0027] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0028] This application discloses a batch inspection and testing apparatus for sensors.

[0029] Reference Figure 1 , Figure 2 and Figure 3 A batch inspection and testing device for sensors includes a high and low temperature chamber 1, which contains multiple placement plates 2. The high and low temperature chamber 1 is equipped with a drive assembly for swinging the placement plates 2. The placement plates 2 are equipped with a test assembly for batch calibration. The drive assembly includes a rotary motor 3, a coupling 4, a first swing link 5, a fixed bearing 6, and a second swing link 7.

[0030] Multiple rotary motors 3 are provided, all installed on one side wall of the high and low temperature chamber 1. Multiple couplings 4 are provided, each installed on the output end of the rotary motor 3. Multiple first swing links 5 are provided, each movably connected to one end of the placement plate 2. The other end of the first swing link 5 passes through the high and low temperature chamber 1 and is connected to the coupling 4. Multiple fixed bearings 6 are provided, all installed inside the high and low temperature chamber 1 on the side wall away from the rotary motor 3. Multiple second swing links 7 are provided, one end of each second swing link 7 is fixedly connected to the inside of the fixed bearing 6, and the other end of the second swing link 7 is movably connected to the placement plate 2.

[0031] Reference Figure 1 and Figure 2 Inside the high and low temperature chamber 1, there are support bushings 8 installed below the placement plate 2. The top of the support bushings 8 are movably connected to the placement plate 2. The support bushings 8 can support the placement plate 2 and improve its stability.

[0032] Refer to Figure 3 and Figure 4The testing assembly includes multiple U-shaped testing fixtures 9 respectively disposed on the upper surface of the placement plate 2. The U-shaped testing fixtures 9 contain electronic components for testing motion sensors, all of which are existing technologies and will not be described in detail. A pressure plate 10 is fixedly connected inside the U-shaped testing fixture 9. Multiple spring beads 11 are installed on the lower surface of the pressure plate 10. Multiple placement slots 12 for placing motion sensors are opened on the upper surface of the placement plate 2. The placement slots 12 are adapted to the spring beads 11 respectively. The placement plate 2 and the U-shaped testing fixture 9 are provided with a connecting assembly for easy disassembly and assembly. By placing multiple motion sensors into the placement slots 12 respectively, and then installing the U-shaped testing fixture 9 onto the placement plate 2 through the connecting assembly, the pressure plate 10 presses the spring beads 11 against the motion sensors respectively, applies pressure to the motion sensors, and fixes the motion sensors. Then, the U-shaped testing fixture 9 is used to perform batch calibration tests on the motion sensors.

[0033] Reference Figure 3 and Figure 4 The connecting assembly includes insert blocks 13 fixedly connected to both ends of the bottom of the U-shaped test fixture 9. Slots 14 adapted to the insert blocks 13 are provided at both ends of the upper surface of the placement plate 2. Threaded rods 20 are rotatably connected to both ends of the placement plate 2. A rotating disk is fixedly connected to one end of the threaded rod 20 to facilitate rotation. A movable plate 15 is threaded onto the threaded rod 20. Two locking rods 16 are fixedly connected to one side wall of the movable plate 15. Two locking holes 17 are provided on one side wall of each insert block 13. The ends of the locking rods 16 away from the movable plate 15 pass through the placement plate 2 and are inserted into the locking holes 17. Insert blocks 13 are inserted into the slots 14 respectively. Then, by rotating the threaded rods 20, the movable plate 15 moves along the threaded rods 20 in coordination with the locking rods 16. The movable plate 15 is brought closer to the placement plate 2, causing the locking rods 16 to be inserted into the locking holes 17, thus fixing the insert blocks 13 and securing the U-shaped test fixture 9 onto the placement plate 2.

[0034] Reference Figure 3 and Figure 4 Positioning rods 18 are fixedly connected to both ends of the placement plate 2. The end of the positioning rod 18 away from the placement plate 2 passes through the moving plate 15 and is fixedly connected to the limiting block 19. The positioning rod 18 and the limiting block 19 can limit the movement distance of the moving plate 15, preventing the locking rod 16 from disengaging from the placement plate 2. This would cause the moving plate 15 to rotate during the rotation of the threaded rod 20, making it difficult for the locking rod 16 to pass through the placement plate 2.

[0035] Reference Figure 1 The bottom of the high and low temperature chamber 1 is equipped with multiple casters 21 for easy movement. The casters 21 can be used to easily move the high and low temperature chamber 1 and transport it.

[0036] The implementation principle of the batch inspection and testing device for sensors in this application embodiment is as follows: In use, motion sensors are placed in batches in the placement slots 12 on the placement plate 2, and then the U-shaped testing fixture 9 is placed on the placement plate 2, so that the inserts 13 are inserted into the slots 14 respectively. Then, by rotating the threaded rod 20, the moving plate 15 moves along the threaded rod 20 in conjunction with the locking rod 16, bringing the moving plate 15 closer to the placement plate 2, so that the locking rod 16 is inserted into the locking hole 17 to fix the inserts 13, and the U-shaped testing fixture 9 is fixed on the placement plate 2, so that the pressure plate 10 presses the spring ball 11. Do not place the motion sensor directly on the surface. Apply pressure to the motion sensor to fix it in place. Then, perform batch calibration tests on the motion sensor using the U-shaped test fixture 9. During the test, start the rotary motor 3 to make the coupling 4 drive the first swing link 5 to rotate. With the help of the fixed bearing 6 and the second swing link 7, the placement plate 2 swings. The U-shaped test fixture 9 performs the test during the swing of the motion sensor. This avoids the problem of not being able to swing the sensor, making it difficult to test the sensor's data performance during the bumpy process, which would reduce its applicability.

[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A batch testing device for sensors, comprising a high and low temperature chamber (1), wherein the high and low temperature chamber (1) is provided with a plurality of placement plates (2), the high and low temperature chamber (1) is provided with a driving component for swinging the placement plates (2), and the placement plates (2) are provided with a testing component for batch calibration, characterized in that: The drive assembly includes multiple rotary motors (3) mounted on one side wall of the high and low temperature chamber (1). A coupling (4) is installed at the output end of the rotary motor (3), and a first swing link (5) is installed at the other end of the coupling (4). One end of the first swing link (5) passes through the high and low temperature chamber (1) and is movably connected to the placement plate (2). Multiple fixed bearings (6) are installed on the side wall of the high and low temperature chamber (1) away from the rotary motors (3). A second swing link (7) is fixedly connected inside the fixed bearing (6), and the other end of the second swing link (7) is movably connected to the placement plate (2).

2. A batch inspection test device for sensors according to claim 1, characterized in that: Inside the high and low temperature chamber (1), there are support bushings (8) installed below the placement plate (2), and the top of the support bushings (8) are movably connected to the placement plate (2).

3. A batch inspection test device for sensors according to claim 2, characterized in that: The test assembly includes multiple U-shaped test fixtures (9) respectively disposed on the upper surface of the placement plate (2). A pressure plate (10) is fixedly connected inside the U-shaped test fixture (9). Multiple spring beads (11) are installed on the lower surface of the pressure plate (10). Multiple placement slots (12) for placing motion sensors are opened on the upper surface of the placement plate (2). The placement slots (12) are respectively adapted to the spring beads (11). The placement plate (2) and the U-shaped test fixture (9) are provided with connecting components for easy disassembly and assembly.

4. A batch inspection test device for sensors according to claim 3, characterized in that: The connecting assembly includes inserts (13) fixedly connected to both ends of the bottom of the U-shaped test fixture (9), and slots (14) adapted to the inserts (13) are provided at both ends of the upper surface of the placement plate (2).

5. A batch inspection test apparatus for sensors according to claim 4, characterized in that: Both ends of the placement plate (2) are rotatably connected to threaded rods (20), and a movable plate (15) is threadedly connected to the threaded rods (20). Two locking rods (16) are fixedly connected to one side wall of the movable plate (15), and two locking holes (17) are opened on one side wall of the insertion block (13). The end of the locking rod (16) away from the movable plate (15) passes through the placement plate (2) and is inserted into the locking hole (17).

6. A batch inspection test device for sensors according to claim 5, characterized in that: Positioning rods (18) are fixedly connected to both ends of the placement plate (2). The end of the positioning rod (18) away from the placement plate (2) passes through the moving plate (15) and is fixedly connected to a limit block (19).

7. A batch inspection test device for sensors according to claim 6, characterized in that: The high and low temperature chamber (1) is equipped with multiple casters (21) at the bottom for easy movement.

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