Non-heating type oxygen sensor chip testing tool

Abstract

The utility model discloses a non-heating type oxygen sensor chip test tool. Comprising a base, a rotating mechanism, a clamp and an acquisition card, a rotating mechanism is arranged on the base, clamps are arranged on the rotating mechanism in the circumferential direction, clamping stations are arranged on the clamps, and each clamping station corresponds to one oxygen sensor chip; the acquisition card is arranged in the rotating mechanism, the acquisition card is connected with the clamping station through a signal line, a firing pin at the end part of the signal line is positioned on the bottom surface of the clamping station, and the firing pin at the end part of the signal line is arranged towards the signal section of the oxygen sensor chip. According to the test tool, a plurality of oxygen sensor chips can be loaded during each test, the acquisition card simultaneously acquires voltage data of the plurality of oxygen sensor chips during heating, and a new batch of to-be-tested oxygen sensor chips can be tested only by rotating the cylinder to drive the rotating tray to rotate after the test is completed. And the testing efficiency of the oxygen sensor chip is greatly improved.

Description

Technical Field:

[0001] The utility model belongs to the technical field of oxygen sensors, and particularly relates to a test tooling for a non-heated oxygen sensor chip. Background Art:

[0002] Currently, the mainstream oxygen sensors on the market are all heated type, and they are all equipped with heaters to ensure the working performance of the sensors. The heaters are usually made of resistance wires, ceramic tubes or other heat-conducting materials and are directly installed inside or outside the oxygen sensors.

[0003] For some old vehicles with low emission requirements or engines under specific working conditions, non-heater type oxygen sensors are often used. In the process of manufacturing, since there is no heater in this type of oxygen sensor, during testing, operators need to hold a single oxygen sensor and use an external heating device to heat it for testing, resulting in low testing efficiency.

[0004] The information disclosed in this background art section is only intended to enhance the overall understanding of the utility model and should not be regarded as an admission or any form of suggestion that this information constitutes prior art already known to those of ordinary skill in the art. Summary of the Utility Model:

[0005] The purpose of the utility model is to provide a test tooling for a non-heated oxygen sensor chip, so as to overcome the defects in the above-mentioned prior art.

[0006] To achieve the above purpose, the utility model provides a test tooling for a non-heated oxygen sensor chip, which includes a base, a rotating mechanism, a fixture and a data acquisition card. A rotating mechanism is arranged on the base, fixtures are arranged circumferentially on the rotating mechanism, a clamping station is arranged on the fixture, and each clamping station corresponds to an oxygen sensor chip. The data acquisition card is arranged inside the rotating mechanism, and the data acquisition card is connected to the clamping station through a signal line. The pin at the end of the signal line is located at the bottom surface of the clamping station, and the pin at the end of the signal line is arranged towards the signal segment of the oxygen sensor chip. The oxygen sensor chip is fixed by the fixture, the voltage data of the oxygen sensor chip after being heated is collected by the data acquisition card, and the oxygen sensor chip is driven to rotate by the rotating mechanism to realize continuous testing of the oxygen sensor chip.

[0007] Preferably, in the technical solution, the rotating mechanism includes a rotating cylinder, a tray support and a rotating tray. The rotating cylinder is arranged on the base, the output end of the rotating cylinder is provided with the tray support, the top of the tray support is provided with the rotating tray, fixtures are arranged circumferentially on the rotating tray, and the data acquisition card is arranged inside the rotating tray.

[0008] Preferably, in the technical solution, four fixtures are arranged on the rotating tray, and the included angle between adjacent fixtures is 90°.

[0009] Preferably, in the technical solution, the rotation angle of the rotary cylinder is 90° each time.

[0010] Preferably, in the technical solution, three clamping stations are provided on each fixture, and each clamping station is connected to the acquisition card through corresponding signal lines.

[0011] Preferably, in the technical solution, the acquisition card uses NI USB-6210.

[0012] Compared with the prior art, the present utility model has the following beneficial effects:

[0013] Through this test tooling, multiple oxygen sensor chips can be loaded each time during testing. The acquisition card simultaneously collects the voltage data of multiple oxygen sensor chips during heating. After the test is completed, only by rotating the rotary cylinder to drive the rotary tray to rotate, a new batch of oxygen sensor chips to be tested can be tested, greatly improving the test efficiency of the oxygen sensor chips. Description of the drawings:

[0014] Figure 1 It is the front view of the non-heating type oxygen sensor chip test tooling of the present utility model;

[0015] Figure 2 It is the top view of the non-heating type oxygen sensor chip test tooling of the present utility model. Specific embodiments:

[0016] The following describes the specific embodiments of the present utility model in detail, but it should be understood that the protection scope of the present utility model is not limited by the specific embodiments.

[0017] Unless otherwise clearly stated, throughout the specification and claims, the term "comprising" or its variations such as "including" or "having" etc. will be understood to include the stated elements or components, without excluding other elements or other components.

[0018] Such as Figure 1-2As shown in the figure, a non-heating type oxygen sensor chip test tooling includes a base 1, a rotating mechanism 2, a fixture 3, and a data acquisition card 4. A rotating mechanism 2 is arranged on the base 1. The rotating mechanism 2 includes a rotating cylinder 20, a tray support 21, and a rotating tray 22. The rotating cylinder 20 is arranged on the base 1. A tray support 21 is arranged at the output end of the rotating cylinder 20. A rotating tray 22 is arranged at the top of the tray support 21. Four fixtures 3 are arranged on the circumferential direction of the rotating tray 22, and the included angle between adjacent fixtures 3 is 90°. The data acquisition card 4 is arranged in the rotating tray 22. The data acquisition card 4 uses NI USB-6210. Three clamping stations 30 are arranged on each fixture 3. Each clamping station 30 corresponds to an oxygen sensor chip 5. Each clamping station 30 is connected to the data acquisition card 4 through a corresponding signal line 40. The pin at the end of the signal line 40 is located at the bottom surface of the clamping station 30, and the pin at the end of the signal line 40 faces the signal section of the oxygen sensor chip 5.

[0019] The rotating cylinder 20 has two rotation modes of 45° and 90°, and 90° is the normal rotation mode. The operator loads the oxygen sensor chip 5 into the clamping station 30, and the pin at the end of the signal line 40 contacts the signal section of the oxygen sensor chip 5. Twelve oxygen sensor chips 5 are installed each time, and the protective layer of the oxygen sensor chip 5 is horizontally downward. To simulate the jump performance of the oxygen sensor chip 5 during actual application, heating is carried out using a flame. The operator places one of the fixtures 3 of the test tooling above the flame, and the flame heats the three oxygen sensor chips 5 on this fixture 3. After the oxygen sensor chip 5 is heated, a voltage signal is generated. The voltage signal is transmitted to the data acquisition card 4 through the signal line 40. The data acquisition card 4 sends the collected voltage signal data to an external processor. The data acquisition card 4 continuously collects the voltage signals generated during the heating process of the oxygen sensor chip 5 until the moment when the oxygen sensor chip 5 moves out of the flame. The collected voltage signals of the oxygen sensor chip 5 are compared with the set voltage signals to determine whether the product performance of the oxygen sensor chip 5 is qualified. The rotating cylinder 20 is turned on and rotates 90°, moving the three oxygen sensor chips 5 to be tested on the next fixture 3 above the flame, and repeating the above steps. Through this test tooling, multiple oxygen sensor chips 5 can be loaded during each test. The data acquisition card 4 simultaneously collects the voltage data of multiple oxygen sensor chips 5 during heating. After the test is completed, only the rotating cylinder 20 needs to drive the rotating tray 22 to rotate to test a new batch of oxygen sensor chips 5 to be tested, greatly improving the test efficiency of the oxygen sensor chip 5.

[0020] The foregoing description of the specific exemplary embodiments of the present utility model is for purposes of illustration and exemplification. These descriptions are not intended to limit the present utility model to the precise forms disclosed, and it is apparent that many modifications and variations are possible in light of the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present utility model and its practical applications, so that those skilled in the art can implement and utilize the various different exemplary embodiments of the present utility model, as well as various different selections and modifications. The scope of the present utility model is intended to be defined by the claims and their equivalents.

Claims

1. A non-heating type oxygen sensor chip test tooling, characterized in that: It includes a base, a rotating mechanism, a fixture, and a data acquisition card. A rotating mechanism is provided on the base. Fixtures are arranged circumferentially on the rotating mechanism. A clamping station is provided on each fixture, and each clamping station corresponds to an oxygen sensor chip. The data acquisition card is arranged inside the rotating mechanism. The data acquisition card is connected to the clamping station through a signal line, and the pin at the end of the signal line is located at the bottom surface of the clamping station, and the pin at the end of the signal line is arranged towards the signal segment of the oxygen sensor chip.

2. The non-heating type oxygen sensor chip testing tooling according to claim 1, characterized in that: The rotating mechanism includes a rotating cylinder, a tray support, and a rotating tray. The rotating cylinder is arranged on the base. A tray support is provided at the output end of the rotating cylinder. A rotating tray is provided at the top of the tray support. Fixtures are arranged circumferentially on the rotating tray, and the data acquisition card is arranged inside the rotating tray.

3. The non-heating type oxygen sensor chip testing tooling according to claim 2, characterized in that: Four fixtures are provided on the rotating tray, and the included angle between adjacent fixtures is 90°.

4. The non-heating type oxygen sensor chip testing tooling according to claim 3, wherein: The rotation angle of the rotating cylinder each time is 90°.

5. The non-heating type oxygen sensor chip testing tooling according to claim 1, characterized in that: Three clamping stations are provided on each fixture, and each clamping station is connected to the data acquisition card through a corresponding signal line.

6. The non-heating type oxygen sensor chip testing tooling according to claim 1, characterized in that: The data acquisition card uses NI USB-6210.

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