Alignment clamp and alignment method for screen printing of chip oxygen sensor

Abstract

The invention discloses an alignment clamp and an alignment method for a screen printing of a chip oxygen sensor. The alignment clamp comprises screen printing plates, and further comprises alignmentclamp plates, the alignment clamp plate is arranged at the position below the screen printing plate, alignment square arrays formed by arranging a plurality of square alignment frames is arranged at the position of the middle area of the alignment clamp plate, interval distances are formed between every two adjacent alignment frames, screen square arrays formed by arranging a plurality of square screen printing frames is arranged on the screen printing plate, and the alignment square arrays on the alignment clamp plates aligned with the screen square arrays arranged on the screen printing screen plates in a one-to-one correspondence mode; a plurality of vacuum air suction holes are formed in the peripheral edge of the inner side of each alignment frames of the square array of the alignmentclamp plates, the vacuum air suction holes are connected with vacuumizing structures in a vacuumizing mode, and each alignment frame is positioned and aligned with a solid electrolyte membrane pieceof the chip oxygen sensor. According to the alignment clamp and the alignment method for the screen printing of the chip oxygen sensor, the dependence on large-scale high-precision alignment punchingequipment is reduced, the equipment investment cost is low, the site is small, the cost is low, and the operation is simple and convenient.

Description

technical field [0001] The invention relates to a sensor screen printing device for a sheet-type automobile exhaust sensor, in particular to an alignment fixture and an alignment method prepared by screen printing for a sheet-type oxygen sensor. Background technique [0002] Oxygen sensors usually have two main structures, one is the traditional tubular structure, and the other is the chip structure developed in recent years. The oxygen sensor with a chip structure is an improvement on the traditional tubular structure oxygen sensor with complex process. The preparation process is simpler and more efficient, which greatly reduces the complexity and cost of preparing the sensor. The oxygen sensor with a chip structure is usually composed of multiple functional layers, and the functional layers mainly include a reaction electrode layer, an insulating layer, an air channel layer, and the like. The main process of the preparation of the chip oxygen sensor is: firstly, the solid...

AI Technical Summary

Problems solved by technology

[0003] The present invention solves the problem of high machine dependence on high-precision alignment punching equipment in the production of the existing sheet-type oxygen sensor screen printing preparation, and the equipment solves the problems of high investment cost, large occupied space, and high product and manufacturing costs. It provides a kind of counter that reduces the dependence on large-scale high-precision alignment punching equipment, low equipment investment cost, small footprint, lower product manufacturing cost, simple structure, and easy operation. Bit fixture and alignment method

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