A thread detection device for automotive sensors

Abstract

The utility model provides a thread detection device for car sensor applies to car sensor detection technical field. The device includes workstation, and the workstation top surface is opened with through groove, and the through groove inside fixed mounting has fixed shaft, and the fixed shaft outer wall rotatablely has the rotary board of bushing through the limiting ring, and the rotary board back surface fixed mounting has the electric wrench, and the electric wrench output end is connected with test thread column, and the workstation back surface is installed with the locking structure for locking the rotary board, and the workstation top surface is provided with the movement structure for car sensor movement. Through the rotary board rotatable in the workstation, and setting up the test thread column of different size on the rotary board, when carrying out thread detection to different model sensor, only needs to loosen the locking structure to rotate the rotary board and carries out the quick changeover. In this way, can improve the detection efficiency of the thread detection device for car sensor.

Description

Technical Field

[0001] This utility model relates to the field of automotive sensor detection, and in particular to a thread detection device for automotive sensors. Background Technology

[0002] With the rapid development of the automotive industry, the safety, reliability, and intelligence of automobiles are receiving increasing attention. As a key component of automotive electronic control systems, automotive sensors directly affect the overall vehicle's operating status. Threaded connections are a common method for installing and fixing automotive sensors. The quality of the threads, such as dimensional accuracy, tooth profile accuracy, and surface roughness, plays a crucial role in the sensor's installation stability, sealing performance, and signal transmission accuracy. However, in actual production, due to factors such as processing technology and equipment precision, automotive sensor threads may exhibit defects such as incomplete thread profiles, pitch errors, and surface cracks. These defects not only make sensor installation difficult but may also lead to loosening and air leakage during long-term vehicle operation, thus affecting the normal operation of the sensor and even endangering driving safety.

[0003] Currently, existing thread testing devices can only test sensors with one type of thread. When testing different sensor thread types, it is necessary to change the device and replace it with a different sized test thread post to adapt to the sensor. This type of changeover requires downtime, resulting in low testing efficiency and increased working time. Therefore, there is an urgent need for a thread testing device for automotive sensors that features rapid changeover to improve testing efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a thread detection device for automotive sensors in order to solve the above-mentioned problems.

[0005] This utility model achieves the above objectives through the following technical solutions: A thread detection device for automotive sensors includes: a worktable, a through groove on the top surface of the worktable, a fixed shaft fixedly installed inside the through groove, a rotating plate rotatably sleeved on the outer wall of the fixed shaft via a limiting ring, an electric screwdriver fixedly installed on the back of the rotating plate, a test thread post connected to the output end of the electric screwdriver, a locking structure for locking the rotating plate installed on the back of the worktable, and a moving structure for moving the automotive sensor on the top surface of the worktable.

[0006] Furthermore, the rotating plate is configured in a cross shape, and an electric screwdriver is fixedly installed on the back of each end. Each set of electric screwdriver output ends is connected to test threaded posts of different sizes.

[0007] Furthermore, the width of the through groove is greater than the maximum diameter of the rotating plate.

[0008] Furthermore: the locking structure includes a fixed plate fixedly installed on the bottom surface of the workbench, a cylinder fixedly installed on the back of the fixed plate, a U-shaped plate connected to the output end of the cylinder, a positioning rod fixedly installed on the front of the U-shaped plate, and the width of the front interior is the same as the width of one end of the rotating plate. Each end of the rotating plate is provided with a positioning hole of the same size as the positioning rod.

[0009] Furthermore, the movable structure includes a slide rail fixedly installed inside the top surface of the workbench, a rotating shaft fixedly installed inside the slide rail, a slider slidably connected to the outer wall of the rotating shaft, and a clamping structure fixedly installed on the top surface of the slider.

[0010] Furthermore, the clamping structure includes a clamping box with a slider top surface fixedly installed, and push screws are symmetrically threaded to both sides of the clamping box. A rubber clamping plate is fixedly installed at the front end of the push screw.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: By using a rotating plate inside the workbench, and setting an electric screwdriver on the rotating plate to drive the test thread post to rotate for thread detection, and setting test thread posts of different sizes on the rotating plate to adapt to different models of automotive sensors for thread detection, when performing thread detection on different models of sensors, simply loosen the locking structure to rotate the rotating plate for changing the type, and after changing the type, re-lock the locking structure to perform thread testing. This structure can achieve rapid type change, solving the problem of low detection efficiency caused by the need to stop the machine for type change in the prior art. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 A three-dimensional structural schematic diagram of a thread detection device for automotive sensors according to the present invention is shown. Figure 2 This is a top view schematic diagram of a thread detection device for automotive sensors according to the present invention; Figure 3 A cross-sectional schematic diagram of a thread detection device for automotive sensors according to the present invention is shown; Figure 4 A cross-sectional schematic diagram of the clamping structure of a thread detection device for automotive sensors according to the present invention is shown. Figure 5 A three-dimensional schematic diagram of the rotating plate of a thread detection device for automotive sensors according to the present invention is shown. Figure 6 This invention provides a perspective view of the locking structure of a thread detection device for automotive sensors.

[0014] The annotations in the attached figures are explained as follows: 1. Workbench; 2. Fixed shaft; 3. Rotating plate; 4. Electric screwdriver; 5. Test thread post; 6. Fixed plate; 7. Cylinder; 8. U-shaped plate; 9. Positioning rod; 10. Slide rail; 12. Rotating shaft; 13. Slider; 14. Clamping box; 15. Push screw; 16. Clamping plate. Detailed Implementation

[0015] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection", and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through the specific circumstances.

[0017] The present invention will be further described below with reference to the accompanying drawings: like Figures 1-6As shown, a thread testing device for automotive sensors includes: a worktable 1, a through groove on the top surface of the worktable 1, a fixed shaft 2 fixedly installed inside the through groove, a rotating plate 3 rotatably sleeved on the outer wall of the fixed shaft 2 via a limiting ring, an electric screwdriver 4 fixedly installed on the back of the rotating plate 3, a test thread post 5 connected to the output end of the electric screwdriver, a locking structure for locking the rotating plate 3 installed on the back of the worktable 1, and a moving structure for moving the automotive sensor on the top surface of the worktable 1. Thread testing is performed by rotating the rotating plate 3 rotatably inside the worktable 1 and rotating the test thread post 5 on the rotating plate 3 with the electric screwdriver 4 mounted on the rotating plate 3. Simultaneously, test thread posts 5 of different sizes are set on the rotating plate 3 to adapt to different models of automotive sensors for thread testing. When performing thread testing on different models of sensors, simply loosen the locking structure to rotate the rotating plate 3 for changing the type; after changing the type, re-lock the locking structure to perform thread testing. This structure enables rapid type changing, solving the problem of low testing efficiency caused by the need for machine downtime for type changing in existing technologies.

[0018] In some embodiments, the rotating plate 3 is configured in a cross shape. The cross shape allows the rotating plate to accommodate more test thread posts 5 to improve the adaptability of the device. An electric screwdriver 4 is fixedly installed on the back of each end of the rotating plate to drive the test thread posts 5 to rotate for thread detection. Each set of electric screwdrivers 4 has a test thread post 5 of different size connected to its output end. Multiple sets of test thread posts 5 of different sizes can adapt to different models of automotive sensors, enabling the device to detect different models of sensors. The sensor type can be quickly changed by rotating the rotating plate 3. In addition, the width of the through slot is set to be greater than the maximum diameter of the rotating plate 3, which facilitates the rotation of the rotating plate 3 inside the through slot and avoids motion interference, which would prevent the sensor type from being changed.

[0019] In some embodiments, the locking structure includes a fixed plate 6 fixedly installed on the bottom surface of the workbench 1 to support the cylinder 7. The cylinder 7 is fixedly installed on the back of the fixed plate 6. The output end of the cylinder 7 is connected to a U-shaped plate 8. The cylinder 7 is used to drive the U-shaped plate 8 to move back and forth to position the rotating plate 3. A positioning rod 9 is fixedly installed on the front of the U-shaped plate 8. Each end of the rotating plate 3 has a positioning hole of the same size as the positioning rod 9. The function of the positioning rod 9 is to achieve double positioning when the rotating plate 3 is fixed by the U-shaped plate 8, so as to ensure that the threaded column 5 can be kept stable when performing thread testing and avoid affecting the testing. The inner width of the front of the U-shaped plate 8 is the same as the width of one end of the rotating plate 3, which can ensure that the rotating plate 3 can be locked to prevent it from wobbling left and right.

[0020] In some embodiments, the moving structure includes a slide rail 10 fixedly installed inside the top surface of the worktable 1 for providing a moving stroke for the slider 13. A rotating shaft 12 is fixedly installed inside the slide rail 10, and the slider 13 is slidably connected to the outer wall of the rotating shaft 12. A clamping structure is fixedly installed on the top surface of the slider 13. During thread detection, the clamping structure is manually pushed, and the slider 13 slides inside the slide rail 10, driving the sensor under test to move and performing thread detection.

[0021] In some embodiments, the clamping structure includes a clamping box 14 with the top surface of the slider 13 fixedly mounted for accommodating the sensor to be tested. The clamping box 14 has symmetrical threaded push screws 15 on both sides, and a rubber clamping plate 16 is fixedly mounted at the front end of the push screws 15. When clamping the sensor, the sensor is placed inside the clamping box 14, and the push screws 15 on both sides are rotated to move the clamping plate 16 to both sides of the sensor until the sensor is clamped and fixed. This structure can adjust the detection position for different types of sensors, further improving the adaptability of the device. The rubber clamping plate 16 can prevent scratching the outer wall of the sensor when clamping the sensor, and also plays a protective and buffering role.

[0022] In this utility model, the electric screwdriver 4 is a Makita TD130DWE. This electric screwdriver has a compact and lightweight design and adopts advanced brushless motor technology. It is not only powerful but also has a long service life and relatively low maintenance costs. When changing models, the power cord can be disconnected and then reconnected when in use.

[0023] In this invention, cylinder 7 is a Festo DNC series cylinder, which has a wide stroke range, with a maximum stroke exceeding 2000mm. It has high-precision motion control performance, which can accurately control the position and speed of the piston rod, ensuring accuracy during long-stroke motion.

[0024] Working principle: In use, place the sensor to be tested inside the clamping box 14, rotate the push screws 15 on both sides to move the clamping plate 16 to both sides of the sensor until the sensor is clamped and fixed. At this time, push the clamping box 14, and the slider 13 moves forward inside the slide rail 10. The clamping box 14 at the top of the slider 13 moves towards the test thread post 5 until the sensor contacts the test thread post 5. Then drive the electric screwdriver 4 to rotate, which drives the test thread post 5 to rotate. If the automotive sensor thread is correct, the test thread post 5 will enter the automotive sensor. The automotive sensor will continue to move towards the test thread post 5, which will drive the slider 13 below to continue to move forward inside the slide rail 10 until the test is completed. If the thread is irregular, the test thread post 5 will get stuck and cannot enter the automotive sensor. This is used to determine whether the thread of the automotive sensor to be tested is qualified.

[0025] When testing the threads of different sensor models, the drive cylinder 7 retracts, causing the U-shaped plate 8 to move backward. The positioning rod 9 disengages from the positioning hole of the rotating plate 3. At this time, the rotating plate 3 is rotated to select the appropriate test thread post 5. Then, the drive cylinder 7 is extended again, causing the U-shaped plate 8 to move forward until it is engaged with both sides of the rotating plate 3. At this time, the positioning rod 9 is inserted into the positioning hole, completing the positioning of the rotating plate 3, thus completing the rapid model change.

[0026] The cylinder, electric screwdriver, and test thread post are all general standard parts or known through conventional experimental methods, so they will not be described in detail here.

[0027] The foregoing has shown and described the basic principles, main features and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are only illustrative of the principles of this utility model. Various changes and modifications may be made to this utility model without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of this utility model as claimed.

Claims

1. A thread detection device for automotive sensors, comprising: The workbench (1) is characterized in that a through groove is provided on the top surface of the workbench (1), a fixed shaft (2) is fixedly installed inside the through groove, a rotating plate (3) is rotatably sleeved on the outer wall of the fixed shaft (2) through a limiting ring, an electric screwdriver (4) is fixedly installed on the back of the rotating plate (3), a test thread post (5) is connected to the output end of the electric screwdriver, a locking structure for locking the rotating plate (3) is installed on the back of the workbench (1), and a moving structure for moving the car sensor is provided on the top surface of the workbench (1).

2. The thread detection device for automotive sensors according to claim 1, characterized in that: The rotating plate (3) is set in a cross shape, and an electric screwdriver (4) is fixedly installed on the back of each end. Each set of electric screwdrivers (4) has a test thread post (5) of different size connected to its output end.

3. The thread detection device for automotive sensors according to claim 1, characterized in that: The width of the through groove is greater than the maximum diameter of the rotating plate (3).

4. The thread detection device for automotive sensors according to claim 1, characterized in that: The locking structure includes a fixed plate (6) fixedly installed on the bottom surface of the workbench (1), a cylinder (7) fixedly installed on the back of the fixed plate (6), a U-shaped plate (8) connected to the output end of the cylinder (7), a positioning rod (9) fixedly installed on the front of the U-shaped plate (8), and the width of the front interior is the same as the width of one end of the rotating plate (3). Each end of the rotating plate (3) is provided with a positioning hole of the same size as the positioning rod (9).

5. The thread detection device for automotive sensors according to claim 1, characterized in that: The moving structure includes a slide rail (10) fixedly installed inside the top surface of the workbench (1), a rotating shaft (12) fixedly installed inside the slide rail (10), a slider (13) slidably connected to the outer wall of the rotating shaft (12), and a clamping structure fixedly installed on the top surface of the slider (13).

6. The thread detection device for automotive sensors according to claim 5, characterized in that: The clamping structure includes a clamping box (14) on which the top surface of the slider (13) is fixedly installed. The clamping box (14) is symmetrically threaded with push screws (15) on both sides. A rubber clamping plate (16) is fixedly installed at the front end of the push screw (15).

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