Inductive pressure sensor test fixture

Abstract

The utility model provides an inductive pressure sensor test fixture, which relates to the technical field of pressure sensor test, and comprises a working table, a support frame is fixed on the top surface of the working table, a chute is arranged on the top surface of the support frame, a movable rod is slidably connected in the support frame, and the movable rod is provided with a sliding groove. And a transmission mechanism for driving the moving rod to slide is arranged in the supporting frame and comprises a push rod rotationally connected to one end of the moving rod, the end, away from the moving rod, of the push rod is fixedly sleeved with a shifting rod, and the top end of the shifting rod penetrates through the interior of the sliding groove and extends to the position above the supporting frame. According to the test fixture for the inductive pressure sensor, the motor drives the rotating rod to rotate, the rotating rod, the transmission wheel, the moving shaft and the moving groove are matched to drive the test support to rotate with the supporting block as the center, the angle between the top end of the test support and the sensor is adjusted, and the pressure of the sensor at different angles can be tested.

Description

Technical Field

[0001] The utility model relates to a sensor testing fixture, in particular to an inductive pressure sensor testing fixture, belonging to the technical field of pressure sensor testing. Background Art

[0002] A pressure-sensitive electronic component is installed in the pressure sensor, which transmits the pressure it bears to the client in the form of an electrical signal. The pressure sensor needs to be pressure tested before leaving the factory, which requires the use of a test fixture to limit the position of the pressure sensor.

[0003] A pressure sensor test fixture is disclosed in Chinese patent application CN220472864U. In the utility model, firstly, the control box, display, fixed ring, electric push rod, sliding shaft, connecting block 1, fixed column, connecting plate, connecting shaft, movable plate, movable shaft, connecting block 2, joint shaft, fixed block, and clamping block are used to clamp the object and test it through the clamping degree to improve the work efficiency.

[0004] Although the above scheme can clean the workbench, the sensor test fixture in the above patent is not convenient for testing the pressure of the pressure sensor at different angles. The current test fixture can only apply pressure to the pressure sensor in the vertical direction. The test accuracy is not ideal, and it is impossible to quickly locate sensors of different sizes. For this reason, we provide an inductive pressure sensor test fixture to solve the above problems. Utility Model Content

[0005] The utility model provides an inductive pressure sensor test fixture to solve the problems in the prior art that the sensor test fixture is inconvenient to test pressures of pressure sensors at different angles and cannot quickly position sensors of different sizes.

[0006] The utility model is implemented through the following technical scheme: an inductive pressure sensor test fixture includes a workbench, a support frame is fixed to the top surface of the workbench, a slide groove is opened on the top surface of the support frame, a moving rod is slidably connected to the inside of the support frame, and a transmission mechanism for driving the moving rod to slide is arranged inside the support frame.

[0007] Furthermore, the transmission mechanism includes a push rod rotatably connected to one end of the moving rod, and the end of the push rod away from the moving rod is fixedly sleeved with a shift rod, and the top end of the shift rod passes through the interior of the slide slot and extends to the top of the support frame.

[0008] Furthermore, the transmission mechanism also includes two limit frames fixed on the inner bottom wall of the support frame, the two limit frames are slidably connected to the inside of the two limit frames, compression springs are fixed between the inside of the two limit frames and the two sliders, the upper surfaces of the two sliders are rotatably connected to support rods, and the ends of the two support rods close to each other are rotatably connected to the bottom end of the shift rod.

[0009] A work plate is fixed on the top surface of the workbench, and a positioning mechanism for fixing the sensor is arranged on the upper part of the work plate.

[0010] Furthermore, the positioning mechanism includes a connecting shaft fixedly sleeved on one end of the moving rod, both ends of the connecting shaft are rotatably connected to the connecting rods, the ends of the two connecting rods away from the connecting shaft are rotatably connected to the clamping rods, the ends of the two clamping rods close to the support frame are slidably sleeved on the limiting blocks, and one side of the two limiting blocks is fixed to one side of the support frame.

[0011] The bottom surface of the workbench is provided with a supporting mechanism for testing the sensor.

[0012] Furthermore, the supporting mechanism includes a supporting plate fixed to the bottom surface of the workbench, a motor is fixed to one side of the supporting plate, a rotating rod is fixed to the output end of the motor, an end of the rotating rod away from the motor passes through the supporting plate and is fixed with a transmission wheel, and an end of the transmission wheel away from the rotating rod is fixed with a movable shaft.

[0013] Furthermore, the support mechanism also includes a support block fixed to the bottom surface of the workbench, one side of the support block is rotatably connected to a test bracket, a movable groove is opened at the bottom of the test bracket, and one end of the movable shaft away from the transmission wheel is slidably connected to the inside of the movable groove.

[0014] The utility model provides an inductive pressure sensor test fixture, which has the following beneficial effects:

[0015] 1. The inductive pressure sensor test fixture drives the rotating rod to rotate through the motor, and drives the test bracket to rotate around the support block through the cooperation between the rotating rod, the transmission wheel, the moving shaft and the moving slot. By adjusting the angle between the top of the test bracket and the sensor, the pressure of the sensor at different angles can be tested.

[0016] 2. The inductive pressure sensor test fixture drives the lever to move through external force, drives the moving rod to slide through the cooperation between the lever and the push rod, provides elastic thrust to the slider through the compression spring, supports the position of the lever operation through the cooperation between the slider and the support rod, and drives the positioning mechanism to quickly support sensors of different sizes through the elastic support of the transmission mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0018] Figure 2 It is a side view of the overall structure of the utility model;

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the transmission mechanism in the utility model;

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the support mechanism in the utility model.

[0021] Description of Reference Numerals

[0022] 1. Workbench; 2. Support frame; 3. Slide;

[0023] 4. Transmission mechanism; 41. Limiting frame; 42. Sliding block; 43. Compression spring; 44. Support rod; 45. Driving rod; 46. Push rod;

[0024] 5. Move the rod;

[0025] 6. Positioning mechanism; 61. Connecting shaft; 62. Connecting rod; 63. Clamping rod; 64. Limiting block;

[0026] 7. Homework board;

[0027] 8. Support mechanism; 81. Support plate; 82. Motor; 83. Rotating rod; 84. Transmission wheel; 85. Moving shaft; 86. Support block; 87. Test bracket; 88. Moving slot. DETAILED DESCRIPTION

[0028] Please refer to Figure 1 and Figure 2 The embodiment of the utility model provides an inductive pressure sensor test fixture, including a workbench 1, a support frame 2 is fixed to the top surface of the workbench 1, a slide groove 3 is provided on the top surface of the support frame 2, a moving rod 5 is slidably connected to the inside of the support frame 2, and a transmission mechanism 4 for driving the moving rod 5 to slide is arranged inside the support frame 2.

[0029] Please refer to Figure 3 The transmission mechanism 4 includes a push rod 46 rotatably connected to one end of the moving rod 5, and an end of the push rod 46 away from the moving rod 5 is fixedly sleeved with a lever 45. The top end of the lever 45 passes through the interior of the slide groove 3 and extends to the top of the support frame 2. The moving rod 5 is driven to slide horizontally inside the support frame 2 through the cooperation between the lever 45 and the push rod 46.

[0030] The transmission mechanism 4 also includes two limit frames 41 fixed to the inner bottom wall of the support frame 2, and the two limit frames 41 are slidably connected to the inside of the two limit frames 41. Compression springs 43 are fixed between the inside of the two limit frames 41 and the two sliders 42, and elastic thrust is provided to the sliders 42 through the compression springs 43. The upper surfaces of the two sliders 42 are rotatably connected to support rods 44, and the ends of the two support rods 44 that are close to each other are rotatably connected to the bottom end of the shift rod 45. The working position of the shift rod 45 is supported by the cooperation between the slider 42 and the support rod 44.

[0031] In the above scheme, the lever 45 is driven to move by external force, the moving rod 5 is driven to slide by the cooperation between the lever 45 and the push rod 46, the compression spring 43 provides elastic thrust to the slider 42, the working position of the lever 45 is supported by the cooperation between the slider 42 and the support rod 44, and the positioning mechanism 6 is driven by the elastic support of the transmission mechanism 4 to quickly support sensors of different sizes.

[0032] Please refer to Figure 1 and Figure 2 A work plate 7 is fixed to the top surface of the workbench 1 , and a positioning mechanism 6 for fixing the sensor is provided on the upper part of the work plate 7 .

[0033] Please refer to Figure 3 The positioning mechanism 6 includes a connecting shaft 61 fixedly sleeved on one end of the moving rod 5, and both ends of the connecting shaft 61 are rotatably connected to the connecting rods 62. The ends of the two connecting rods 62 away from the connecting shaft 61 are rotatably connected to the clamping rods 63. The clamping rods 63 are driven to move horizontally above the workbench 1 through the cooperation between the connecting shaft 61 and the connecting rod 62. The ends of the two clamping rods 63 close to the support frame 2 are slidably sleeved on the limit blocks 64, and one side of the two limit blocks 64 is fixed to one side of the support frame 2.

[0034] In the above scheme, the clamping rod 63 is driven to move horizontally above the workbench 1 through the cooperation between the moving rod 5, the connecting shaft 61 and the connecting rod 62, and the sensor above the work plate 7 is fixed by the clamping rod 63, so that the sensor to be tested is quickly positioned.

[0035] Please refer to Figure 1 and Figure 2 The bottom surface of the workbench 1 is provided with a supporting mechanism 8 for testing the sensor.

[0036] Please refer to Figure 4The support mechanism 8 includes a support plate 81 fixed to the bottom surface of the workbench 1, a motor 82 is fixed to one side of the support plate 81, a rotating rod 83 is fixed to the output end of the motor 82, an end of the rotating rod 83 away from the motor 82 passes through the support plate 81 and is fixed with a transmission wheel 84, and an end of the transmission wheel 84 away from the rotating rod 83 is fixed with a moving shaft 85, and the moving shaft 85 is driven to rotate by the rotating rod 83 and the transmission wheel 84.

[0037] The support mechanism 8 also includes a support block 86 fixed to the bottom surface of the workbench 1. A test bracket 87 is rotatably connected to one side of the support block 86. A movable groove 88 is provided at the bottom of the test bracket 87. The end of the movable shaft 85 away from the transmission wheel 84 is slidably connected to the inside of the movable groove 88. The test bracket 87 is driven to rotate around the support block 86 through the cooperation between the movable shaft 85 and the movable groove 88.

[0038] In the above scheme, the motor 82 drives the rotating rod 83 to rotate, and the cooperation among the rotating rod 83, the transmission wheel 84, the movable shaft 85 and the movable groove 88 drives the test bracket 87 to rotate around the support block 86 as the center. By adjusting the angle between the top of the test bracket 87 and the sensor, the pressure of the sensor at different angles can be tested.

[0039] The utility model is used as follows: when the test fixture is in use, the sensor is placed above the work board 7, the lever 45 is driven to move by an external force, the moving rod 5 is driven to slide horizontally inside the support frame 2 by the cooperation between the lever 45 and the push rod 46, the compression spring 43 provides elastic thrust to the slider 42, the slider 42 and the support rod 44 cooperate to support the position of the lever 45, the moving rod 5, the connecting shaft 61 and the connecting rod 62 cooperate to drive the clamping rod 63 to move horizontally above the work table 1, and the sensor above the work board 7 is driven by the clamping rod 63. The device is fixed to quickly position the sensor to be tested, and the positioning mechanism 6 is driven by the elastic support of the transmission mechanism 4 to quickly support sensors of different sizes; when testing the sensor, the motor 82 drives the rotating rod 83 to rotate, and the rotating rod 83 and the transmission wheel 84 drive the moving shaft 85 to rotate, and the cooperation between the moving shaft 85 and the moving groove 88 drives the test bracket 87 to rotate around the support block 86 as the center, and the angle between the top of the test bracket 87 and the sensor is adjusted, so that the pressure at different angles of the sensor can be tested, thereby improving the accuracy of sensor data detection.

[0040] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An inductive pressure sensor test fixture, characterized in that: include: A workbench (1) for supporting; A support frame (2), wherein the support frame (2) is fixed on the top surface of the workbench (1); A slide groove (3), wherein the slide groove (3) is provided on the top surface of the support frame (2); A moving rod (5), wherein the moving rod (5) is slidably connected to the interior of the support frame (2); A transmission mechanism (4) for driving the moving rod (5) to slide, wherein the transmission mechanism (4) is arranged inside the support frame (2); A work plate (7) for supporting the sensor, wherein the work plate (7) is fixed on the top surface of the workbench (1); A positioning mechanism (6) for fixing the sensor, wherein the positioning mechanism (6) is arranged on the upper part of the working plate (7); A support mechanism (8) for testing a sensor, wherein the support mechanism (8) is arranged on the bottom surface of a workbench (1).

2. The inductive pressure sensor test fixture according to claim 1, characterized in that: The transmission mechanism (4) comprises a push rod (46) rotatably connected to one end of the moving rod (5); an end of the push rod (46) away from the moving rod (5) is fixedly sleeved with a shift rod (45); the top end of the shift rod (45) passes through the interior of the slide groove (3) and extends to the top of the support frame (2).

3. The inductive pressure sensor test fixture according to claim 2, characterized in that: The transmission mechanism (4) further comprises two limit frames (41) fixed to the inner bottom wall of the support frame (2), the interior of the two limit frames (41) being slidably connected with a slider (42), a compression spring (43) being fixed between the interior of the two limit frames (41) and the two sliders (42), the upper surfaces of the two sliders (42) being rotatably connected with a support rod (44), and the ends of the two support rods (44) close to each other being rotatably connected to the bottom end of the shifting rod (45).

4. The inductive pressure sensor test fixture according to claim 1, characterized in that: The positioning mechanism (6) comprises a connecting shaft (61) fixedly sleeved on one end of the moving rod (5), both ends of the connecting shaft (61) are rotatably connected to connecting rods (62), the ends of the two connecting rods (62) away from the connecting shaft (61) are rotatably connected to clamping rods (63), the ends of the two clamping rods (63) close to the support frame (2) are slidably sleeved on limit blocks (64), and one side of the two limit blocks (64) is fixed to one side of the support frame (2).

5. The inductive pressure sensor test fixture according to claim 1, characterized in that: The support mechanism (8) comprises a support plate (81) fixed to the bottom surface of the workbench (1); a motor (82) is fixed to one side of the support plate (81); a rotating rod (83) is fixed to the output end of the motor (82); an end of the rotating rod (83) away from the motor (82) passes through the support plate (81) and is fixed to a transmission wheel (84); and an end of the transmission wheel (84) away from the rotating rod (83) is fixed to a moving shaft (85).

6. The inductive pressure sensor test fixture according to claim 5, characterized in that: The support mechanism (8) further comprises a support block (86) fixed to the bottom surface of the workbench (1); a side surface of the support block (86) is rotatably connected to a test bracket (87); a movable groove (88) is provided at the bottom of the test bracket (87); and an end of the movable shaft (85) away from the transmission wheel (84) is slidably connected to the inside of the movable groove (88).

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