A power battery oven tray or fixture positioning method

Abstract

The invention relates to a power battery drying oven tray or clamp positioning method. Three laser distance sensors and one proximity sensor are installed on an insertion arm for carrying a power battery tray or clamp, and sensing pieces corresponding to the sensors are installed on the inner wall of a drying oven; the insertion arm is controlled by a PLC, and under driving of a servo motion module, the insertion arm can move left and right, front and back and up and down. While the insertion arm transports the power battery tray or clamp into the drying oven, the laser distance sensors detectthe sensing pieces, the PLC converts the distances detected by the laser distance sensors and then compares the preset X-axis displacement and the preset Y-axis displacement with the distances, and if the detected distances are equal to the set values, positioning is completed; if deviations exist, the PLC controls the servo motion module to compensate the motion deviations according to calculated deviation data, and then positioning is completed. Compared with an existing drying oven tray or clamp positioning way, the positioning precision can be better ensured, the positioning way is more intelligent and more stable, and the problem that in a traditional positioning method, the distance deviation is large is improved and solved.

Description

technical field [0001] The invention relates to the technical field of power battery manufacturing, in particular to a positioning method for a power battery oven tray or fixture. Background technique [0002] In the baking process of the existing power battery production, the positioning of the oven fixture and the tray is mechanical positioning, and the mechanical positioning has the problems of large positioning accuracy deviation and poor positioning stability; and the mechanical positioning mechanism will touch the side of the oven during the positioning process , metal contact friction occurs, long-term reciprocating action will produce metal dust, which will bring hidden dangers to the baked battery; and the positioning device that comes with the oven only relies on photoelectric sensors. When the inserting arm carries the power battery tray or fixture, the photoelectric sensor exists. The induction error is relatively large, and the position of the tray or fixture in...

AI Technical Summary

Problems solved by technology

[0002] In the baking process of the existing power battery production, the positioning of the oven fixture and the tray is mechanical positioning, and the mechanical positioning has the problems of large positioning accuracy deviation and poor positioning stability; and the mechanical positioning mechanism will touch the side of the oven during the positioning process , metal contact friction occurs, long-term reciprocating action will produce metal dust, which will bring hidden dangers to the baked battery; and the positioning device that comes with the oven only relies on photoelectric sensors. When the inserting arm carries the power battery tray or fixture, the photoelectric sensor exists. The induction error is relatively large, and the position of the tray or fixture in the oven cannot be controlled within ±1mm, which cannot fully meet the baking conditions

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