A pressure sensor testing device

Abstract

A pressure sensor testing device includes a frame, a mounting fixture arranged on the frame, a rotary drive mechanism for driving the mounting fixture to rotate, and an oil tank arranged on the frame and located below the mounting fixture; the mounting fixture includes a mounting seat and a plurality of mounting stations arranged on the mounting seat, the mounting seat is provided with an oil passage connected to each mounting station, and the side of the mounting seat is provided with an oil inlet and an oil outlet connected to the oil passage. The mounting seat is provided with a plurality of mounting stations, and the mounting stations can be provided with corresponding docking structures according to the fixing requirements of different pressure sensors; the oil tank supplies oil to the oil passage in the mounting seat, and the oil pressure is applied to each pressure sensor, and then the pressure sensor is tested, and the controller can record the test results; before the test, the pressure sensor to be tested can be turned over by the rotary drive mechanism to exhaust the air in the pressure sensor to avoid affecting the test results.

Description

Technical Field

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

[0002] With the increasing popularity of automobiles, more and more companies are producing automobile pressure sensors. The production of automobile pressure sensors must use a pressure sensor test bench to test whether the automobile pressure sensors are qualified. Different models of automobiles use different types of pressure sensors. The current pressure sensor test system cannot test multiple types of pressure sensors at the same time. It can only test different types of pressure sensors by replacing equipment, which leads to low test efficiency. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a pressure sensor testing device which can test pressure sensors of different models at the same time and has high testing efficiency.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: a pressure sensor testing equipment, including a frame, an installation tool arranged on the frame, a rotating drive mechanism for driving the installation tool to rotate, and an oil tank arranged on the frame and located below the installation tool; the installation tool includes a mounting seat and a plurality of mounting stations arranged on the mounting seat, the mounting seat is provided with an oil channel connected to each mounting station, and the side of the mounting seat is provided with an oil inlet and an oil outlet connected to the oil channel; the rotating drive mechanism includes a bearing seat arranged on the frame and located on both sides of the mounting seat, the two sides of the mounting seat are rotatably connected to the bearing seat through a rotating shaft, and one of the rotating shafts is connected to the hand-cranked wheel; the oil tank includes a box body with an opening at the top and an oil receiving pan arranged on the top of the box body, the mounting seat is fixed in the oil receiving pan by a first support column, the oil receiving pan is provided with an oil return port, and a plurality of second support columns are provided between the oil receiving pan and the bottom of the box body. The principle of the utility model is as follows: a plurality of installation stations are arranged on the mounting seat, and corresponding docking structures can be set at the installation stations according to the fixing requirements of different pressure sensors; the control cable of the controller is electrically connected to the pressure sensor, and docking plugs of different types can adapt to pressure sensors of different types; the oil tank supplies oil to the oil channel in the mounting seat, and the oil pressure is applied to each pressure sensor, which is then tested, and the controller can record the test results; before the test, the pressure sensor to be tested can be turned over by a rotating drive mechanism to exhaust the air in the pressure sensor to avoid affecting the test results.

[0005] As an improvement, the frame includes an upper frame, a middle frame and a lower frame, the installation tool is arranged in the middle frame, the oil tank is arranged in the lower frame, the back of the lower frame is provided with an inspection port for the oil tank to enter and exit, the inspection port is provided with a removable baffle, and the side of the oil tank is provided with a handle.

[0006] Compared with the prior art, the utility model has the following beneficial effects:

[0007] The mounting base can fix multiple pressure sensors to be tested at one time. The oil channels in the mounting base are connected to each pressure sensor for pressure testing. Different types of pressure sensors can be tested at the same time, and the test efficiency is high. The pressure sensor to be tested can be flipped through the rotary drive mechanism to exhaust the air in the pressure sensor to avoid affecting the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a three-dimensional diagram of the utility model.

[0009] Figure 2 It is a front schematic diagram of the utility model.

[0010] Figure 3 It is a side schematic diagram of the utility model. DETAILED DESCRIPTION

[0011] The utility model will be further described below in conjunction with the accompanying drawings.

[0012] like Figures 1 to 3As shown, a pressure sensor dynamic test equipment includes a frame 1, a controller 2 arranged on the upper part of the frame 1, a mounting tool 3 arranged in the middle of the frame 1 and used to fix the pressure sensor 7, and an oil tank 4 arranged at the lower part of the frame 1. The frame 1 is constructed of aluminum alloy profiles, and the frame 1 includes an upper frame, a middle frame and a lower frame. The upper frame is used to fix the controller 2, the middle frame is used to place the mounting tool 3 and provide space for operation, and the lower frame is used to fix the oil tank 4. The control cable of the controller 2 runs from top to bottom, and the return oil of the mounting tool 3 runs from top to bottom, and the oil and electricity do not interfere with each other. The controller 2 is provided with a control cable for controlling the pressure sensor 7, and the control cable is provided with a plurality of docking plugs of different models. The controller 2 is provided with a control panel, and the controller 2 controls the pressure sensor 7 through the control cable and receives feedback signals. The installation tool 3 includes a mounting seat and a plurality of installation stations arranged on the mounting seat; bearing seats 5 are arranged on both sides of the mounting seat, and the mounting seat is rotatably connected to the bearing seats 5 through a rotating shaft, one side of the rotating shaft is connected to a hand-cranked wheel 6, and the mounting seat is driven to rotate by the hand-cranked wheel 6. The test turns the pressure sensor 7 to be tested by rotating the mounting seat, so that the pressure sensor 7 can discharge air before the test to avoid affecting its test results; an oil channel connected to each installation station is arranged in the mounting seat, and an oil inlet and an oil outlet 31 connected to the oil channel are arranged on the side of the mounting seat, and the oil outlet 31 directly discharges oil downward. The oil tank 4 is connected to the oil inlet of the mounting seat through an oil supply pipe. During testing, the oil in the oil tank 4 is pumped out by an oil pump. A return oil port is provided on the top of the oil tank 4. After the test is completed, the oil in the mounting seat is discharged and flows back to the oil tank 4 through the return oil port; the oil tank 4 is arranged in the lower frame body, and the back of the lower frame body is provided with an inspection port for the oil tank 4 to enter and exit. A removable baffle is provided at the inspection port, and a handle is provided on the side of the oil tank 4. The oil in the oil tank 4 can be regularly replaced through the inspection port, and the handle facilitates manual dragging of the oil tank 4 out of the lower frame body; the oil tank 4 includes a box body with an open top and an oil receiving pan 41 provided on the top of the box body, the mounting seat is fixed in the oil receiving pan 41 by a first support column, the oil return port is opened on the oil receiving pan 41, and a plurality of second support columns are provided between the oil receiving pan 41 and the bottom of the box body.

[0013] The principle of the utility model is as follows: different types of pressure sensors 7 are fixed on the tooling station of the mounting seat, and the mounting station can be provided with corresponding docking structures according to the fixing requirements of different pressure sensors 7; the control cable of the controller 2 is electrically connected to the pressure sensor 7, and different types of docking plugs can adapt to different types of pressure sensors 7; the oil tank 4 supplies oil to the oil channel in the mounting seat, and the oil pressure is applied to each pressure sensor 7, which is then tested, and the controller 2 can record the test results.

Claims

1. A pressure sensor testing device, characterized in that: It includes a frame, an installation tool arranged on the frame, a rotary drive mechanism for driving the installation tool to rotate, and an oil tank arranged on the frame and located below the installation tool; the installation tool includes a mounting seat and a plurality of mounting stations arranged on the mounting seat, the mounting seat is provided with an oil passage connected to each mounting station, and the side of the mounting seat is provided with an oil inlet and an oil outlet connected to the oil passage; the rotary drive mechanism includes a bearing seat arranged on the frame and located on both sides of the mounting seat, the two sides of the mounting seat are rotatably connected to the bearing seat through a rotating shaft, and one of the rotating shafts is connected to the hand wheel; the oil tank includes a box body with an opening at the top and an oil receiving pan arranged on the top of the box body, the mounting seat is fixed in the oil receiving pan by a first support column, the oil receiving pan is provided with an oil return port, and a plurality of second support columns are provided between the oil receiving pan and the bottom of the box body.

2. A pressure sensor testing device according to claim 1, characterized in that: The frame includes an upper frame, a middle frame and a lower frame, the installation tool is arranged on the middle frame, the oil tank is arranged in the lower frame, the back of the lower frame is provided with an inspection port for the oil tank to enter and exit, a detachable baffle is provided at the inspection port, and a handle is provided on the side of the oil tank.

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