An automatic detection process method for a ceramic chip of a chip oxygen sensor
A technology of an oxygen sensor and a process method, which is applied to instruments, measuring devices, measuring electrical variables, etc., can solve problems such as errors, time-consuming and labor-intensive, and low efficiency.
Active Publication Date: 2021-08-20
NANTONG UNIVERSITY
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Problems solved by technology
The shape of the ceramic chip is a long thin sheet structure. When testing the resistance parameters, it is required to place it according to the specified placement state. By manually identifying the front and back, the front and the back, it is easy to cause eye fatigue, errors, and low efficiency; when testing ceramic chips, it is necessary to The rear end of the ceramic chip is heated, and manual operation still has certain safety problems, which is time-consuming and laborious
In order to improve the detection speed and accuracy of oxygen sensor ceramic chips, and effectively avoid misoperations caused by repeated operations and visual fatigue of workers, an automatic detection equipment and process method for chip oxygen sensor ceramic chips are urgently needed
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[0026] The core technology of the chip oxygen sensor is the ceramic chip technology. The performance of the ceramic chip will directly affect the overall performance of the oxygen sensor. Therefore, before the ceramic chip is assembled, it is necessary to perform a qualified inspection of the ceramic chip and eliminate unqualified products. figure 1 It is a schematic diagram of the outline structure of the chip oxygen sensor ceramic chip. When detecting the ceramic chip of the chip oxygen sensor, it is required to face up, the rear end of the ceramic chip is at the heating position, and the front end of the ceramic chip is connected to the detection instrument to perform resistance detection on the sensing part of the ceramic chip. According to the heating process of the ceramic chip The detected resistance value judges whether the ceramic chip is qualified.
[0027] Such as Figure 2-6 As shown, an automatic detection machine for ceramic chips of a chip oxygen sensor of the ...
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The invention discloses an automatic detection process method for ceramic chips of a chip oxygen sensor, which controls the feeding of the ceramic chip and identifies its placement state through a material loading identification mechanism; realizes the adjustment of the front and rear ends of the ceramic chip through a rotating mechanism; realizes the ceramic chip through a turning mechanism. The front and back of the chip are turned over; the rear end of the ceramic chip is heated by the heating detection system, and the front end of the ceramic chip is connected to a testing instrument to detect its resistance value in real time. According to the detected resistance value of the ceramic chip, it is judged whether it is qualified and sent to the corresponding receiving box. The invention is easy to operate, realizes automatic feeding of ceramic chips, position recognition adjustment and resistance parameter detection and screening, reduces labor intensity of workers, and improves the detection efficiency of ceramic chip resistance parameters.
Description
technical field [0001] The invention relates to the technical field of ceramic chip detection, in particular to an automatic detection process method for a chip oxygen sensor ceramic chip. Background technique [0002] With the continuous development of the automobile industry and increasingly stringent exhaust emission standards, as a key component for detecting the oxygen content in automobile exhaust and controlling the fuel combustion ratio of the engine, the value of oxygen sensors has gradually become prominent, and the demand is also increasing. Oxygen sensors can be roughly divided into tube-type and chip-type. In comparison, chip-type oxygen sensors have become the mainstream products in the market due to their advantages of faster onset, lower heating power and shorter response time. [0003] The core technology of the chip oxygen sensor is the ceramic chip technology. The performance of the ceramic chip is directly related to the overall performance of the sensor....
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IPC IPC(8): B07C5/344B07C5/02B07C5/36G01R27/02
CPCB07C5/02B07C5/344B07C5/361B07C5/362B07C2501/0063G01R27/02
Inventor 邱自学杨路超陈啸郭琳娜袁江
Owner NANTONG UNIVERSITY