Pressure sensor test fixture with adjustable clamping distance

Abstract

The utility model provides a pressure sensor test fixture with an adjustable clamping distance, and relates to the technical field of pressure sensor testing, the pressure sensor test fixture comprises a supporting table, the surface of the supporting table is provided with an adjusting assembly, a test plate and a limiting assembly, and the test plate can be fixed on the surface of the adjusting assembly through the limiting assembly; the adjusting assembly comprises a driving motor, and a threaded rod, a moving block, a connecting rod and a placing plate which are arranged on the side of the driving motor; and the testing plate can be fixed on the surface of the placing plate. According to the pressure sensor test fixture with the adjustable clamping distance, through the limiting assembly and the detachable test plate, a worker can conveniently mount and dismount a pressure sensor, the time for replacing the pressure sensor is shortened, the efficiency and the production capacity of a production line are improved, and meanwhile, a plurality of placement grooves are formed in the surface of the test plate; a plurality of pressure sensors can be tested at the same time, and the testing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a test fixture, in particular to a pressure sensor test fixture with adjustable clamping interval, belonging to the technical field of pressure sensor testing. Background Art

[0002] A force sensor is a device used to measure, monitor and detect pressure. It can convert pressure changes into electrical signals for monitoring and control in industrial, automotive, medical and other application fields. Many devices and systems need to withstand a certain pressure within their normal operating range. By using a pressure tester for testing, it can be verified whether the device can safely withstand the expected pressure to ensure that there are no safety hazards during use. This is especially important for areas involving high-pressure liquid or gas systems, pressure vessels, pipelines, valves, etc.

[0003] When using the existing test fixture, the pressure sensor is usually placed on the fixture frame for clamping operation so that the position of the pressure sensor does not change. However, the existing test fixture is generally installed manually, with a small number of single installations, low repeated positioning accuracy, and low test output efficiency, which is not suitable for large quantities. Utility Model Content

[0004] The utility model provides a pressure sensor test fixture with adjustable clamping distance, so as to solve the problems of small single installation quantity, low repeated positioning accuracy and low test output efficiency in the prior art.

[0005] The utility model is implemented through the following technical solutions: a pressure sensor test fixture with adjustable clamping distance, comprising a support table, the surface of which is provided with an adjustment component, a test plate and a limit component, and the test plate can be fixed on the surface of the adjustment component through the limit component;

[0006] The adjustment assembly is used to adjust the position of the test plate, and the adjustment assembly includes a drive motor and a threaded rod, a moving block, a connecting rod and a placement plate arranged on the side of the drive motor;

[0007] The test plate is used to clamp and fix the pressure sensor, and the test plate includes a placement groove opened on the surface of the test plate and a telescopic rod and a clamping plate arranged inside the placement groove;

[0008] The limiting assembly comprises a limiting rod and an annular stopper fixed on the surface of the limiting rod, and the limiting assembly is arranged inside the placing plate.

[0009] Furthermore, a transmission bin is provided inside the support platform, the drive motor is fixed to the inner wall of the transmission bin, one end of the threaded rod is fixed to the output shaft of the drive motor, the other end of the threaded rod is fixed to the inner wall of the transmission bin via a bearing, and a thread is provided in the inner hole of the moving block, and the moving block can be movably connected to the threaded rod via the thread.

[0010] Furthermore, the connecting rod is fixed on the upper surface of the moving block, a movable groove is opened on the surface of the transmission bin, the connecting rod can be inserted into the movable groove, the placement plate is fixed on the upper end of the connecting rod, and there are two each of the moving block, the connecting rod and the placement plate, which are evenly arranged on the surface of the threaded rod.

[0011] Furthermore, a slider is fixed to the lower surface of the placement plate, and a slide groove is opened on the surface of the support platform. The slider can be slidably connected in the slide groove, and the placement plate can be movably connected to the surface of the support platform through the slider and the slide groove. There are two sliders and two slide grooves, which are symmetrically arranged on the lower surface of the placement plate.

[0012] Furthermore, one end of the telescopic rod is fixed to the inner wall of the placement groove, the clamping plate is fixed to the other end of the telescopic rod, a first spring is sleeved on the surface of the telescopic rod, and there are two telescopic rods, two first springs and two clamping plates, which are symmetrically arranged inside the placement groove.

[0013] Furthermore, a fixing groove is provided on the surface of the placement plate, and a fixing block is fixed on the lower surface of the test plate, and the fixing block can be snapped into the fixing groove.

[0014] Furthermore, a telescopic groove is opened inside the placing plate, the limiting rod can be inserted into the telescopic groove, a second spring is sleeved on the surface of the limiting rod, a limiting groove is opened on the surface of the fixing block, and one end of the limiting rod can be clamped in the limiting groove.

[0015] The utility model provides a pressure sensor test fixture with adjustable clamping distance, which has the following beneficial effects:

[0016] 1. The pressure sensor test fixture with adjustable clamping distance uses a limit assembly and a detachable test plate to facilitate the staff to install and disassemble the pressure sensor, reduce the time for replacing the pressure sensor, and improve the efficiency and production capacity of the production line. At the same time, multiple placement slots are opened on the surface of the test plate, which can test multiple pressure sensors at the same time, improving the test efficiency.

[0017] 2. The pressure sensor test fixture with adjustable clamping distance can move two test plates by adjusting the components. When the pressure sensor of one test plate is being tested, the staff can install or remove the pressure sensor of the other test plate, which can save test time and labor costs. Reduce repeated test steps and operations, improve test efficiency, and reduce test costs. At the same time, the double-station test plate can test the sensor in the cycle working mode, simulate the actual working conditions, and detect the stability and reliability of the sensor under different working environments and pressures, so as to detect the performance of the pressure sensor under various working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional structural schematic diagram of the utility model is provided;

[0019] Figure 2 A schematic diagram of the front cross-sectional structure of the utility model is given;

[0020] Figure 3 A schematic diagram of the top view structure of the utility model is given;

[0021] Figure 4 for Figure 2 The enlarged structural diagram at A in the middle;

[0022] Figure 5 for Figure 3 The enlarged structural diagram at B in the middle;

[0023] Figure 6 It is a structural schematic diagram of the alternate test of the test board in the utility model.

[0024] Description of Reference Numerals

[0025] 1. Support platform; 101. Transmission bin; 102. Slideway;

[0026] 2. Adjustment assembly; 201. Drive motor; 202. Threaded rod; 203. Moving block; 204. Connecting rod; 205. Placement plate; 206. Sliding block; 207. Telescopic slot; 208. Fixed slot;

[0027] 3. Test plate; 301. Placement slot; 302. Telescopic rod; 303. First spring; 304. Clamping plate; 305. Fixing block; 306. Limiting slot;

[0028] 4. Limiting assembly; 401. Limiting rod; 402. Second spring; 403. Annular stopper. DETAILED DESCRIPTION

[0029] See also Figure 1-6The embodiment of the utility model provides a pressure sensor test fixture with adjustable clamping spacing, including a support table 1, an adjustment component 2, a test plate 3 and a limit component 4 are arranged on the surface of the support table 1, and the test plate 3 can be fixed on the surface of the adjustment component 2 through the limit component 4;

[0030] Please refer to Figure 2 and Figure 3 The adjustment component 2 is used to adjust the position of the test plate 3. The adjustment component 2 includes a driving motor 201 and a threaded rod 202, a moving block 203, a connecting rod 204 and a placement plate 205 arranged on the side of the driving motor 201. The test plate 3 can be fixed on the surface of the placement plate 205; a transmission compartment 101 is provided inside the support platform 1, the driving motor 201 is fixed to the inner wall of the transmission compartment 101, one end of the threaded rod 202 is fixed to the output shaft of the driving motor 201, and the other end of the threaded rod 202 is fixed to the inner wall of the transmission compartment 101 through a bearing, and a thread is provided in the inner hole of the moving block 203, and the moving block 203 can be movably connected with the threaded rod 202 through the thread. ; The connecting rod 204 is fixed on the upper surface of the moving block 203, and a movable groove is provided on the surface of the transmission chamber 101, in which the connecting rod 204 can be inserted, and the placement plate 205 is fixed on the upper end of the connecting rod 204. There are two moving blocks 203, connecting rods 204 and placement plates 205, and they are evenly arranged on the surface of the threaded rod 202; The pressure sensor test fixture with adjustable clamping spacing can move the two test plates 3 by adjusting the component 2. When the pressure sensor of one of the test plates 3 is being tested, the staff can install or remove the pressure sensor of the other test plate 3, which can save test time and labor costs. Reduce repeated test steps and operations, improve test efficiency, and reduce test costs. At the same time, the double-station test plate 3 can test the sensor in the cyclic working mode, simulate actual working conditions, and detect the stability and reliability of the sensor under different working environments and pressures, so as to detect the performance of the pressure sensor under various working conditions.

[0031] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 5The test board 3 is used to clamp and fix the pressure sensor. The test board 3 includes a placement groove 301 opened on the surface of the test board 3 and a telescopic rod 302 and a clamping plate 304 arranged inside the placement groove 301. The telescopic rod 302 and the clamping plate 304 can support the pressure sensor placed in the placement bin; one end of the telescopic rod 302 is fixed to the inner wall of the placement groove 301, and the clamping plate 304 is fixed to the other end of the telescopic rod 302. A first spring 303 is sleeved on the surface of the telescopic rod 302. There are two telescopic rods 302, two first springs 303 and two clamping plates 304, and they are symmetrically arranged inside the placement groove 301; a fixing groove 208 is opened on the surface of the placement plate 205, and a fixing block 305 is fixed on the lower surface of the test board 3, and the fixing block 305 can be snapped into the fixing groove 208; the limit assembly 4 includes The limit rod 401 includes a limit rod 401 and an annular stopper 403 fixed on the surface of the limit rod 401, and the limit assembly 4 is arranged inside the placement plate 205; a telescopic groove 207 is opened inside the placement plate 205, and the limit rod 401 can be inserted into the telescopic groove 207, and a second spring 402 is sleeved on the surface of the limit rod 401, and a limit groove 306 is opened on the surface of the fixed block 305, and one end of the limit rod 401 can be clamped in the limit groove 306; the pressure sensor test fixture with adjustable clamping distance uses a detachable test plate 3 to facilitate the staff to install and disassemble the pressure sensor, reduce the time for replacing the pressure sensor, and improve the efficiency and production capacity of the production line. At the same time, a plurality of placement grooves 301 are opened on the surface of the test plate 3, and a plurality of pressure sensors can be tested at the same time, thereby improving the test efficiency.

[0032] Please refer to Figure 1 , Figure 2 and Figure 6 A slider 206 is fixed on the lower surface of the placement plate 205, and a slide groove 102 is opened on the surface of the support platform 1. The slider 206 can be slidably connected in the slide groove 102. The placement plate 205 can be movably connected to the surface of the support platform 1 through the slider 206 and the slide groove 102. There are two sliders 206 and two slide grooves 102, and they are symmetrically arranged on the lower surface of the placement plate 205.

[0033] When the utility model is in use: first, the device is placed in a suitable position, and then the device is electrically connected to an external power supply. Then, the staff places the pressure sensor in the placement groove 301, and with the cooperation of the telescopic rod 302 and the first spring 303, the clamping plate 304 is driven to clamp the pressure sensor. When all the pressure sensors are clamped, the staff places the test board 3 clamped with the pressure sensor on the surface of the placement plate 205, and makes the fixing block 305 clamped in the fixing groove 208. Then, the staff pulls the limit rod 401, so that the limit rod 401 retracts into the telescopic groove 207 first, and the fixing block 305 falls into the bottom of the fixing groove 208 without the obstruction of the limit rod 401. Then, the staff releases the limit rod 401, and under the rebound action of the second spring 402, one end of the limit rod 401 is pushed out of the telescopic groove 207, and one end of the limit rod 401 is clamped in the limit groove 306, thereby completing the fixation of the test board 3.

[0034] When the test board 3 is installed, the staff controls the operation of the driving motor 201 through the control device, the driving motor 201 drives the threaded rod 202 to rotate, the threaded rod 202 drives the moving block 203 to move, the moving block 203 drives the connecting rod 204 to move, thereby driving the placement plate 205 fixed on the upper end of the connecting rod 204 to move synchronously, when the placement plate 205 with the test board 3 installed moves to the specified position, the staff can control the driving motor 201 to stop working through the control switch, and then the staff uses the test equipment to test the pressure sensor. At the same time, the staff installs the untested pressure sensor together with the test board 3 on the surface of another placement plate 205.

[0035] 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. A pressure sensor test fixture with adjustable clamping distance, characterized in that: It comprises a support platform (1); The support platform (1) is provided with an adjustment component (2), a test plate (3) and a limiter component (4) on its surface, and the test plate (3) can be fixed on the surface of the adjustment component (2) through the limiter component (4); The adjustment component (2) is used to adjust the position of the test plate (3); The test plate (3) is used to clamp and fix the pressure sensor, and the test plate (3) comprises a placement groove (301) opened on the surface of the test plate (3) and a telescopic rod (302) and a clamping plate (304) arranged inside the placement groove (301).

2. A pressure sensor test fixture with adjustable clamping distance according to claim 1, characterized in that: The adjustment assembly (2) comprises a drive motor (201) and a threaded rod (202), a moving block (203), a connecting rod (204) and a placement plate (205) arranged on the side of the drive motor (201); a transmission chamber (101) is provided inside the support platform (1); the drive motor (201) is fixed to the inner wall of the transmission chamber (101); one end of the threaded rod (202) is fixed to the output shaft of the drive motor (201); the other end of the threaded rod (202) is fixed to the inner wall of the transmission chamber (101) via a bearing; a thread is provided in the inner hole of the moving block (203); and the moving block (203) can be movably connected to the threaded rod (202) via the thread.

3. A pressure sensor test fixture with adjustable clamping distance according to claim 2, characterized in that: The connecting rod (204) is fixed on the upper surface of the moving block (203); a movable groove is provided on the surface of the transmission chamber (101); the connecting rod (204) can be inserted into the movable groove; the placement plate (205) is fixed on the upper end of the connecting rod (204); and there are two each of the moving block (203), the connecting rod (204) and the placement plate (205), which are evenly arranged on the surface of the threaded rod (202).

4. The pressure sensor test fixture with adjustable clamping distance according to claim 2, characterized in that: A slider (206) is fixed on the lower surface of the placement plate (205); a slide groove (102) is provided on the surface of the support platform (1); the slider (206) can be slidably connected in the slide groove (102); the placement plate (205) can be movably connected to the surface of the support platform (1) through the slider (206) and the slide groove (102); there are two sliders (206) and two slide grooves (102), which are symmetrically arranged on the lower surface of the placement plate (205).

5. The pressure sensor test fixture with adjustable clamping distance according to claim 1, characterized in that: One end of the telescopic rod (302) is fixed to the inner wall of the placement groove (301), and the clamping plate (304) is fixed to the other end of the telescopic rod (302). A first spring (303) is sleeved on the surface of the telescopic rod (302). There are two of each of the telescopic rod (302), the first spring (303) and the clamping plate (304), which are symmetrically arranged inside the placement groove (301).

6. The pressure sensor test fixture with adjustable clamping distance according to claim 2, characterized in that: The surface of the placement plate (205) is provided with a fixing groove (208), and the lower surface of the test plate (3) is fixed with a fixing block (305), and the fixing block (305) can be snapped into the fixing groove (208).

7. The pressure sensor test fixture with adjustable clamping distance according to claim 6, characterized in that: The limiting assembly (4) comprises a limiting rod (401) and an annular stopper (403) fixed on the surface of the limiting rod (401); a telescopic groove (207) is provided inside the placement plate (205); the limiting rod (401) can be inserted into the telescopic groove (207); a second spring (402) is sleeved on the surface of the limiting rod (401); a limiting groove (306) is provided on the surface of the fixing block (305); one end of the limiting rod (401) can be clamped in the limiting groove (306).

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