Sensor detection device

Abstract

The utility model discloses a sensor detection device which comprises a detection instrument, a detection bottom plate, a first detection head assembly, a second detection head assembly and a detection base. The first detection head assembly and the second detection head assembly are electrically connected with the detection instrument and used for detecting poor states such as open circuit, short circuit and resistance value of the sensor. The detection base is fixed on the detection base plate, and the first detection head assembly is installed on the detection base plate and located on the side face of the detection base and can stretch out and draw back to make contact with or separate from a sensor side face interface for detection. The second detection head assembly is installed above the detection base in a lifting mode and can be lifted to make contact with or be separated from a top interface of the sensor for detection. According to the utility model, through the arrangement of the first detection head assembly and the second detection head assembly, semi-automatic detection of the sensor can be realized.

Description

Technical Field

[0001] The utility model relates to a detection device, more particularly to a sensor detection device. Background Art

[0002] In the automotive yaw angle sensor manufacturing industry, testing is a critical process for verifying sensor performance to ensure product quality. Its core focus is on detecting functional defects such as open circuits, short circuits, and abnormal resistance values ​​in the sensor circuits. Currently, some small and medium-sized enterprises, under traditional production models, still rely heavily on manual labor for sensor testing.

[0003] The current existing automobile yaw angle sensor structure is as follows Figure 1 As shown in the figure (marked as 9): a main body, and then a groove is formed on the main body, with an interface with an external PCB board in the groove, and a docking interface is set on the side of the main body. Specifically, the manual testing process is as follows: the operator manually places the sensor on a simple tooling or test bench, connects the test connector to the interface and docking interface of the PCB board by manual plugging and unplugging, manually starts the test equipment, manually reads the instrument display results after the test is completed and records them, and finally manually removes the sensors and places them in categories.

[0004] However, this manual testing model has significant efficiency shortcomings in practical applications. First, the testing process for a single sensor requires multiple steps of manual intervention, resulting in cumbersome procedures and a long test time. Second, manual operation speed is limited by the physiological limits of the human body, making it difficult to implement continuous, large-scale testing. This can easily lead to production bottlenecks, especially in scenarios where demand for sensor production capacity is surging. Furthermore, manual operation is prone to poor test consistency due to factors such as fatigue and differences in operating habits, indirectly increasing rework rates and further restricting overall production efficiency. This makes it difficult to meet the requirements of modern mass production for efficient and stable testing. Utility Model Content

[0005] In view of the deficiencies in the prior art, the present invention aims to provide a sensor detection device that can semi-automatically test a sensor.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sensor detection device, comprising a detection instrument, a detection base, a first detection head assembly, a second detection head assembly and a detection base. The first detection head assembly and the second detection head assembly are both electrically connected to the detection instrument to detect whether the sensor has a bad state of "open circuit, short circuit, resistance value" when in contact with the sensor. The detection base is fixedly mounted on the detection base, and the first detection head assembly is mounted on the detection base and is located on the side of the detection base so as to telescope to contact and detect or separate from the sensor side interface on the detection base. The second detection head assembly can be lifted and lowered above the detection base so as to lift and lower to contact and detect or separate from the sensor top interface on the detection base.

[0007] As a further improvement of the present invention, the first detection head assembly includes a first cylinder and a first detection head. The cylinder body of the first cylinder is fixed on the detection base plate, and the first detection head is fixed on the push rod of the first cylinder and is arranged toward the detection base.

[0008] As a further improvement of the present invention, a transverse slide rail is provided on the detection base plate, one end of which extends to a position close to the detection base, and the other end extends to the cylinder body of the first cylinder. A transverse slider is fixed to the push rod of the first cylinder, and the transverse slider is slidably arranged on the transverse slide rail, and the first detection head is fixedly mounted on the transverse slider.

[0009] As a further improvement of the present invention, the transverse slide comprises a mounting block and a slide. The slide is fixedly mounted on the mounting block and slidably arranged on the transverse slide rail.

[0010] As a further improvement of the present invention, the second detection head assembly includes a second cylinder and a second detection head. Guide shafts are fixed to the left and right sides of the detection base relative to the detection base. A mounting plate is fixed to the upper end of the guide shaft. The cylinder body of the second cylinder is fixedly mounted on the mounting plate. A push rod extends downward through the mounting plate. A lifting plate is fixed to the push rod. The lifting plate is sleeved on the guide shaft and can only be raised and lowered by the guide shaft. The second detection head is fixedly mounted on the lower side of the lifting plate.

[0011] Beneficial effects of the present utility model: Through the automated design of the first detection head assembly and the second detection head assembly, the detection device can quickly and accurately contact and detect the side interface and top interface of the sensor, reducing manual intervention and greatly improving detection efficiency. The first detection head assembly is pushed by the first cylinder, and in conjunction with the transverse slide rail and transverse slider, it can accurately control the lateral movement of the detection head; the second detection head assembly uses the second cylinder, guide shaft, mounting plate and lifting plate to achieve stable lifting of the detection head, ensuring the accuracy and consistency of the detection process. This device effectively solves many problems of the traditional manual testing mode, can better meet the needs of modern mass production for efficient and stable detection of sensors, and improve overall production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is the overall structural diagram of the sensor detection device of the present invention. DETAILED DESCRIPTION

[0013] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0014] Reference Figure 1 As shown, the sensor detection device of this embodiment includes a detection instrument, a detection base plate 1, a first detection head assembly 3, a second detection head assembly 4, and a detection base 5. The detection base 5 is fixed to the detection base plate 1 and is used to place the sensor to be detected; the first detection head assembly 3 is mounted on the detection base plate 1 and is located on the side of the detection base 5, and can be extended and retracted to contact or separate the side interface of the sensor; the second detection head assembly 4 is located above the detection base 5 and can be raised and lowered to contact or separate the top interface of the sensor. The first detection head assembly 3 and the second detection head assembly 4 are both electrically connected to the detection instrument and are used to detect the sensor's "open circuit, short circuit, resistance value" and other states.

[0015] The steps of using the detection device of this embodiment to detect the sensor are as follows:

[0016] 1. Turn on the power of the testing instrument (precision wire tester, such as the commonly used XD-608 tester) and the programming controller;

[0017] 2. Place the sensor on the detection base 5, remove your hand from the tooling range, and then step on the start pedal switch to automatically detect the equipment;

[0018] 3. The first detection head assembly 3 of the test fixture clamps the sensor and connects to the sensor, and then the second detection head assembly 4 connects to the sensor;

[0019] 4. After the first detection head assembly 3 and the second detection head assembly 4 are connected, the precision wire tester automatically starts the test to detect whether the circuit has "open circuit, short circuit, or poor resistance value";

[0020] 5. After the test is completed, the precision wire tester screen displays the test results and a voice announces "passed, failed";

[0021] 6. Reset the first detection head assembly 3 and the second detection head assembly 4, and manually remove the sensor;

[0022] 7. Repeat the actions starting from step 2. During the first test, connect the qualified circuit to be tested to the tester, and then press "learn, exit, confirm, test" in sequence on the tester. Compared with the method in the prior art, the detection device of this embodiment only requires manual discharge, start-up and discharge operations, which greatly increases the detection efficiency.

[0023] Further, refer to Figure 1 As shown, the first detection head assembly 3 includes a first cylinder 31 and a first detection head 32. The cylinder body of the first cylinder 31 is fixed to the detection base plate 1, and the first detection head 32 is fixed to its push rod and faces the detection base 5. During operation, the push rod of the first cylinder 31 is extended and retracted to drive the first detection head 32 toward or away from the side interface of the sensor, realizing automatic docking and separation of the interface. The cylinder-driven automated operation replaces manual plugging and unplugging, avoiding the physiological limit of manual operation, and can realize continuous detection to meet the needs of large-scale testing, solving the problem of manual operation that is difficult to conduct continuous batch testing in the background technology.

[0024] Furthermore, a transverse slide rail 11 is provided on the detection base plate 1, one end of which is close to the detection base 5 and the other end extends to the position of the cylinder body of the first cylinder 31; a transverse slider 12 is fixed on the push rod of the first cylinder 31, and the slider can be slidably set on the transverse slide rail 11, and the first detection head 32 is fixed on the transverse slider 12. The transverse slide rail 11 provides guidance for the transverse slider 12, ensuring that the first detection head 32 moves in a straight line and accurately docks with the side interface of the sensor, reducing the detection error caused by docking deviation. At the same time, the cooperation between the slide rail and the slider reduces the movement resistance, making the extension and retraction of the first detection head 32 smoother, improving the consistency of the detection, and solving the problem of poor test consistency caused by differences in operating habits in the background technology.

[0025] Furthermore, the transverse slide 12 includes a mounting block 121 and a slider 122. The slider 122 is fixed to the mounting block 121 and slides on the transverse rail 11. The mounting block 121 provides a stable mounting base for the first detection head 32. The precise fit between the slider 122 and the rail further improves motion accuracy, ensuring the stable position of the first detection head 32 during multiple tests, reducing errors in repeated tests, and lowering the rework rate.

[0026] Further, refer to Figure 1As shown, the second detection head assembly 4 includes a second cylinder 41 and a second detection head 42. Guide shafts 43 are fixed to the detection base plate 1 on the left and right sides of the detection base 5. Mounting plates 44 are fixed to the upper ends of the guide shafts 43. The cylinder body of the second cylinder 41 is fixed to the mounting plates 44. A push rod extends downward through the mounting plates 44 and connects to a lifting plate 45. The lifting plate 45 is sleeved on the guide shafts 43 and can only be raised and lowered. The second detection head 42 is fixed to the underside of the lifting plate 45. During operation, the push rod of the second cylinder 41 retracts and extends, driving the lifting plate 45 up and down along the guide shafts 43, allowing the second detection head 42 to precisely mate with or detach from the sensor's top interface.

[0027] The guide shaft 43 limits the movement trajectory of the lifting plate 45, ensuring that the second detection head 42 rises and falls vertically, avoiding interface damage or detection failure caused by offset; the cylinder drive realizes automatic docking of the top interface, and cooperates with the first detection head assembly 3 to form "side + top" multi-interface synchronous detection, without manual flipping or adjusting the sensor position, further simplifying the operation process, improving batch detection efficiency, and solving the problem of cumbersome manual operation steps and restricting production efficiency in the background technology.

[0028] In summary, this solution utilizes the lateral extension and retraction of the first detection head assembly 3 and the vertical lifting and lowering of the second detection head assembly 4, combined with guide rails and cylinder drive, to create an automated sensor testing device. Automated interface docking replaces manual operation, reducing the time required for single sensor testing.

[0029] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A sensor detection device, characterized in that: The invention comprises a detection instrument, a detection base plate (1), a first detection head assembly (3), a second detection head assembly (4), and a detection base (5). The first detection head assembly (3) and the second detection head assembly (4) are both electrically connected to the detection instrument (2) to detect whether the sensor is in a state of "open circuit, short circuit, or poor resistance value" when in contact with the sensor. The detection base (5) is fixedly mounted on the detection base plate (1). The first detection head assembly (3) is mounted on the detection base plate (1) and is located on the side of the detection base (5) so as to be telescopically in contact with or separated from the sensor side interface on the detection base (5). The second detection head assembly (4) is movably mounted above the detection base (5) so as to be in contact with or separated from the sensor top interface on the detection base (5) so as to be lifted and lowered.

2. The sensor detection device according to claim 1, characterized in that: The first detection head assembly (3) comprises a first cylinder (31) and a first detection head (32), wherein the cylinder body of the first cylinder (31) is fixed on the detection base plate (1), and the first detection head (32) is fixed on the push rod of the first cylinder (31) and is arranged toward the detection base (5).

3. The sensor detection device according to claim 2, characterized in that: A transverse slide rail (11) is provided on the detection base plate (1), one end of the transverse slide rail (11) extends to a position close to the detection base (5), and the other end extends to the cylinder position of the first cylinder (31), a transverse slider (12) is fixed on the push rod of the first cylinder (31), and the transverse slider (12) is slidably arranged on the transverse slide rail (11), and the first detection head (32) is fixedly mounted on the transverse slider (12).

4. The sensor detection device according to claim 3, characterized in that: The transverse slide block (12) comprises a mounting block (121) and a slide block (122). The slide block (122) is fixedly mounted on the mounting block (121) and slidably arranged on the transverse slide rail (11).

5. The sensor detection device according to any one of claims 1 to 4, characterized in that: The second detection head assembly (4) includes a second cylinder (41) and a second detection head (42). The detection base plate (1) is fixed with guide shafts (43) at left and right sides relative to the detection base (5). The upper end of the guide shaft (43) is fixed with a mounting plate (44). The cylinder body of the second cylinder (41) is fixedly mounted on the mounting plate (44). The push rod passes downward through the mounting plate (44). The push rod is fixed with a lifting plate (45). The lifting plate (45) is sleeved on the guide shaft (43) and can only be lifted up and down due to the restriction of the guide shaft (43). The second detection head (42) is fixedly mounted on the lower side of the lifting plate (45).

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