A dynamic characteristics test system for automobile pressure sensors

Abstract

A dynamic characteristic test system for automobile pressure sensors, comprising a frame, a controller arranged on the upper part of the frame, a mounting tool arranged in the middle of the frame and used to fix the pressure sensor, and an oil tank arranged at the lower part of the frame; the controller is provided with a control cable for controlling the pressure sensor, and the control cable is provided with a plurality of docking plugs of different models; the mounting tool comprises 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 oil tank is connected to the oil inlet of the mounting seat through an oil supply pipe, and an oil return port is provided on the top of the oil tank. The utility model can test pressure sensors of different models at the same time, and the test efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of testing systems, in particular to a dynamic characteristic testing system for an automobile pressure sensor. 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 dynamic characteristic test system for automobile pressure sensors, which can test pressure sensors of different models at the same time and has high test efficiency.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: a dynamic characteristic test system of an automobile pressure sensor, comprising a frame, a controller arranged on the upper part of the frame, an installation tool arranged in the middle of the frame and used to fix the pressure sensor, and an oil tank arranged at the lower part of the frame; the controller is provided with a control cable for controlling the pressure sensor, and the control cable is provided with a plurality of docking plugs with different models; the installation tool comprises 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 oil tank is connected to the oil inlet of the mounting seat through an oil supply pipe, and the top of the oil tank is provided with an oil return port. The principle of the utility model is as follows: different types of pressure sensors 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; the control cable of the controller is electrically connected to the pressure sensor, and different types of docking plugs can adapt to different types of pressure sensors; 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.

[0005] As an improvement, the oil tank includes a box body with an opening at the top and an oil collecting pan arranged on the top of the box body, the mounting seat is fixed in the oil collecting pan by a first support column, the oil return port is opened on the oil collecting pan, and a plurality of second support columns are arranged between the oil collecting pan and the bottom of the box body.

[0006] As an improvement, the frame includes an upper frame, a middle frame and a lower 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 removable baffle is provided at the inspection port, and a handle is provided on the side of the oil tank.

[0007] Compared with the prior art, the utility model has the following beneficial effects:

[0008] The utility model has a reasonable layout of the controller, installation tooling and oil tank, which not only saves space but also is easy to operate; the installation tooling can simultaneously place a plurality of pressure sensors with different models, and the controller can simultaneously be connected to a plurality of pressure sensors with different models without switching equipment, and the test efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a three-dimensional diagram of the utility model.

[0010] Figure 2 It is a front schematic diagram of the utility model.

[0011] Figure 3 It is a side schematic diagram of the utility model. DETAILED DESCRIPTION

[0012] The utility model will be further described below in conjunction with the accompanying drawings.

[0013] like Figures 1 to 3As shown, a dynamic characteristic test system of an automobile pressure sensor 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 is from top to bottom, and the return oil of the mounting tool 3 is 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 and receives feedback signals through the control cable. 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.

[0014] 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 dynamic characteristics test system for automobile pressure sensors, characterized in that: It includes a frame, a controller arranged on the upper part of the frame, an installation tool arranged in the middle of the frame and used to fix the pressure sensor, and an oil tank arranged at the lower part of the frame; the controller is provided with a control cable for controlling the pressure sensor, and the control cable is provided with a plurality of docking plugs of different models; 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 oil tank is connected to the oil inlet of the mounting seat through an oil supply pipe, and the top of the oil tank is provided with an oil return port.

2. The automotive pressure sensor dynamic characteristics test system according to claim 1, characterized in that: 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 through a first supporting column, the oil return port is opened on the oil receiving pan, and a plurality of second supporting columns are arranged between the oil receiving pan and the bottom of the box body.

3. The automotive pressure sensor dynamic characteristics test system according to claim 1, characterized in that: The frame comprises an upper frame body, a middle frame body and a lower frame body, the oil tank is arranged in the lower frame body, the back of the lower frame body 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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