Automatic testing device for magnetic sensor

Abstract

The utility model discloses an automatic testing device for a magnetic sensor, and belongs to the field of sensor detection. An automatic testing device for a magnetic sensor comprises a carrier plate, a positioning rod, clamping blocks, a plug and a telescopic rod, a baffle is fixedly connected to one side of the carrier plate, the clamping blocks are symmetrically arranged on the surface of the carrier plate in a sliding mode, the positioning rod is arranged on the surface of the carrier plate in a sliding mode, and the moving direction of the clamping blocks is perpendicular to the moving direction of the positioning rod; the two sides of the positioning rod are rotationally connected with connecting rods in a symmetrical structure, the included angle between the connecting rods and the positioning rod is an acute angle, the connecting rods are rotationally connected with the clamping blocks, the telescopic rod is fixedly installed on the carrying plate, and the plug is vertically connected to the upper portion of the positioning rod in a sliding mode. According to the scheme, the Hall sensor can be automatically fixed, the device is moved into the shielding box through the carrier plate, the sensitivity of the Hall sensor is detected by utilizing magnetic fields with different intensities generated by the magnetic field generator, and the detection efficiency of the Hall sensor can be effectively improved.

Description

Technical Field

[0001] This application relates to the field of sensor detection, and more specifically, to an automated testing device for magnetic sensors. Background Technology

[0002] Magnetic sensors are devices used to detect the strength and direction of magnetic fields. They are used in many fields, including automotive, industrial automation, consumer electronics, and medical devices. Commonly used magnetic sensors include Hall effect sensors, magnetoresistive sensors, and giant magnetoresistive sensors. Among them, Hall effect sensors generate a voltage in a direction perpendicular to both the current and the magnetic field when a current flows through them; they are commonly used to detect magnetic field strength and direction, as well as for current measurement.

[0003] A search revealed a patent document with publication number CN220933173U, which provides a Hall sensor test fixture. When testing the sensor body, the device lowers the sensor body after aligning the positioning slot with the knob. The bottom of the rear wall of the sensor body rests against the front wall of the strip block. After the bottom surface of the sensor body is supported on the top surface of the top plate, the knob is rotated, and the knob presses against the top surface on both sides of the bottom end of the sensor body, thereby achieving rapid installation and positioning of the sensor body.

[0004] The aforementioned device still requires manual fixing when testing magnetic sensors, resulting in low automation and low testing efficiency. Therefore, we propose an automated testing device for magnetic sensors. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] The purpose of this application is to provide an automated testing device for magnetic sensors to solve the problems mentioned in the background art.

[0007] 2. Technical Solution

[0008] This application is achieved through the following technical solution:

[0009] An automated testing device for magnetic sensors includes a carrier plate, a positioning rod, a clamping block, a plug, and a telescopic rod. A baffle is fixedly connected to one side of the carrier plate. The clamping block is symmetrically and slidably disposed on the surface of the carrier plate. The positioning rod is slidably disposed on the surface of the carrier plate, and the moving direction of the clamping block is perpendicular to the moving direction of the positioning rod. Connecting rods are symmetrically and rotatably connected to both sides of the positioning rod. The angle between the connecting rod and the positioning rod is acute. The connecting rod is rotatably connected to the clamping block. The telescopic rod is fixedly mounted on the carrier plate and is used to drive the positioning rod to reciprocate. The plug is vertically and slidably connected above the positioning rod.

[0010] As an optional solution to the technical solution of this application, the clamping block is L-shaped, the inner side of the clamping block is chamfered, the baffle is provided with a limiting groove, and the clamping block is slidably connected to the baffle through the limiting groove.

[0011] As an optional solution to the technical solution of this application, the telescopic rod is fixedly connected to a movable rod at its telescopic end, the movable rod is slidably connected to a positioning rod, and the movable rod and the positioning rod are elastically connected by an elastic element.

[0012] As an optional solution to the technical solution of this application, a push rod is provided between the movable rod and the plug. The push rod is inclined, the lower end of the push rod is rotatably connected to the plug, and the upper end of the push rod is rotatably connected to the movable rod.

[0013] As an optional solution to the technical solution of this application, a limiting rod is fixedly connected to the positioning rod, a limiting block is fixedly connected to the end of the limiting rod, the movable rod is slidably connected to the limiting rod, and the elastic element is a spring sleeved on the outside of the limiting rod.

[0014] As an optional solution to the technical solution of this application, it also includes a shielding box, wherein the carrier plate is slidably connected inside the shielding box, and a magnetic field generator is provided inside the shielding box.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the beneficial effects of this application are:

[0017] This application uses a telescopic rod to drive the positioning rod and clamping block to fix the Hall sensor, and can use a push rod to push the plug downward to insert it into the interface of the Hall sensor, so as to realize the electrical connection with the detection equipment. This can increase the automation level of the device and increase the detection efficiency of the Hall sensor. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an automated testing device for magnetic sensors.

[0019] Figure 2 This is a schematic diagram of the carrier board structure of an automated testing device for magnetic sensors.

[0020] Figure 3 This is a schematic diagram of the positioning rod structure of an automated testing device for magnetic sensors.

[0021] In the diagram: 1. Carrier plate; 101. Baffle; 102. Limiting groove; 2. Positioning rod; 201. Connecting rod; 202. Limiting rod; 203. Limiting block; 3. Clamping block; 4. Plug; 5. Telescopic rod; 6. Movable rod; 7. Elastic element; 8. Push rod; 9. Shielding box. Detailed Implementation

[0022] The technical solution of this application will now be clearly and completely described in conjunction with the accompanying drawings.

[0023] Please see Figure 1 This application provides a technical solution:

[0024] An automated testing device for magnetic sensors includes a carrier plate 1, a positioning rod 2, a clamping block 3, a plug 4, a telescopic rod 5, a movable rod 6, an elastic element 7, a push rod 8, and a shielding box 9.

[0025] The carrier plate 1 is slidably connected inside the shielding box 9. The shielding box 9 is equipped with a magnetic field generator to generate magnetic fields of different intensities to detect the sensitivity of the Hall sensor.

[0026] like Figure 2 As shown, a baffle 101 is fixedly connected to one side of the carrier plate 1. The clamping block 3 is slidably disposed on the surface of the carrier plate 1 in a symmetrical structure. The positioning rod 2 is slidably disposed on the surface of the carrier plate 1. The moving direction of the clamping block 3 is perpendicular to the moving direction of the positioning rod 2. The two sides of the positioning rod 2 are rotatably connected to the connecting rod 201 in a symmetrical structure. The angle between the connecting rod 201 and the positioning rod 2 is an acute angle. The connecting rod 201 is rotatably connected to the clamping block 3. The telescopic rod 5 is fixedly installed on the carrier plate 1. The telescopic rod 5 is used to drive the positioning rod 2 to move back and forth. By placing the Hall sensor on the carrier plate 1, the telescopic rod 5 drives the positioning rod 2 to approach the baffle 101, pushing the Hall sensor to one side of the baffle 101 and abutting against the baffle 101. When the positioning rod 2 approaches the baffle 101, the angle between the connecting rod 201 and the positioning rod 2 gradually decreases, and pushes the two clamping blocks 3 to move closer to the middle, clamping and fixing the two sides of the Hall sensor to facilitate subsequent detection.

[0027] Preferably, the clamping block 3 is L-shaped, with a chamfer on its inner side, and a limiting groove 102 is provided on the baffle 101. The clamping block 3 is slidably connected to the baffle 101 through the limiting groove 102. This allows the clamping block 3 to be locked onto the mounting seats on both sides of the Hall sensor, increasing the fixing effect.

[0028] like Figure 3As shown, plug 4 is vertically slidably connected above positioning rod 2. A movable rod 6 is fixedly connected to the telescopic end of telescopic rod 5. Movable rod 6 is slidably connected to positioning rod 2, and elastically connected to positioning rod 2 via elastic element 7. A push rod 8 is provided between movable rod 6 and plug 4, and push rod 8 is inclined. The lower end of push rod 8 is rotatably connected to plug 4, and the upper end of push rod 8 is rotatably connected to movable rod 6. After telescopic rod 5 pushes positioning rod 2 to fix the Hall sensor, as telescopic rod 5 continues to extend, elastic element 7 is compressed, reducing the gap between movable rod 6 and plug 4. Movable rod 6 can then push plug 4 downwards via push rod 8, inserting plug 4 into the interface of the Hall sensor, thus completing the electrical connection between the external detection device and the Hall sensor.

[0029] Preferably, a limiting rod 202 is fixedly connected to the positioning rod 2, a limiting block 203 is fixedly connected to the end of the limiting rod 202, the movable rod 6 is slidably connected to the limiting rod 202, and the elastic element 7 is a spring sleeved on the outside of the limiting rod 202.

[0030] By adopting the above scheme, the Hall sensor can be automatically fixed, and the device can be moved into the shielded box 9 through the carrier plate 1. The sensitivity of the Hall sensor can be detected by using a magnetic field generator to generate magnetic fields of different intensities, which can effectively increase the detection efficiency of the Hall sensor.

Claims

1. An automated testing device for magnetic sensors, characterized in that: The device includes a carrier plate (1), a positioning rod (2), a clamping block (3), a plug (4), and a telescopic rod (5). A baffle (101) is fixedly connected to one side of the carrier plate (1). The clamping block (3) is symmetrically arranged and slidably disposed on the surface of the carrier plate (1). The positioning rod (2) is slidably disposed on the surface of the carrier plate (1). The moving direction of the clamping block (3) is perpendicular to the moving direction of the positioning rod (2). The positioning rod (2) is symmetrically arranged and rotatably connected to a connecting rod (201) on both sides. The angle between the connecting rod (201) and the positioning rod (2) is an acute angle. The connecting rod (201) is rotatably connected to the clamping block (3). The telescopic rod (5) is fixedly installed on the carrier plate (1). The telescopic rod (5) is used to drive the positioning rod (2) to move back and forth. The plug (4) is vertically slidably connected above the positioning rod (2).

2. The automated testing device for magnetic sensors according to claim 1, characterized in that: The clamping block (3) is L-shaped and has a chamfer on its inner side. A limiting groove (102) is provided on the baffle (101). The clamping block (3) is slidably connected to the baffle (101) through the limiting groove (102).

3. The automated testing device for magnetic sensors according to claim 1, characterized in that: The telescopic rod (5) has a movable rod (6) fixedly connected to its telescopic end. The movable rod (6) is slidably connected to the positioning rod (2). The movable rod (6) and the positioning rod (2) are elastically connected by an elastic element (7).

4. The automated testing device for magnetic sensors according to claim 3, characterized in that: A push rod (8) is provided between the movable rod (6) and the plug (4). The push rod (8) is set at an angle. The lower end of the push rod (8) is rotatably connected to the plug (4), and the upper end of the push rod (8) is rotatably connected to the movable rod (6).

5. The automated testing device for magnetic sensors according to claim 3, characterized in that: A limiting rod (202) is fixedly connected to the positioning rod (2), and a limiting block (203) is fixedly connected to the end of the limiting rod (202). The movable rod (6) is slidably connected to the limiting rod (202), and the elastic element (7) is a spring sleeved on the outside of the limiting rod (202).

6. The automated testing device for magnetic sensors according to claim 1, characterized in that: It also includes a shielding box (9), the carrier plate (1) is slidably connected inside the shielding box (9), and a magnetic field generator is provided inside the shielding box (9).

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