Coating device and coating method

Abstract

The invention discloses a coating device and a coating method. The coating device comprises a needle head, a clamp, an imaging device, a height measurement device and a control device, wherein paint is sprayed on the needle head, the clamp is positioned under the needle head, and the clamp and the needle head can relatively move in a transverse direction and a longitudinal direction; the imaging device, the height measurement device and the control device are positioned above the clamp; the needle head can vertically move relative to the clamp; the needle head is connected with a flow control device, and the imaging device, the height measurement device and the flow control device are connected with the control device. During coating, the injection quantity of the paint of the needle head and the opening and closing of a valve are controlled through the flow control device. In the injection process, the control device controls the relative positions of the clamp and the needle head in the transverse direction and the longitudinal direction so as to ensure that the needle head carries out point injection according to a point injection track determined in advance, and controls the needle head to vertically move relative to the clamp so as to ensure that the distance between the needle head and the surface of a product to be coated is constant.

Description

technical field [0001] The invention relates to the production field of automobile parts, in particular to a coating device and a coating method. Background technique [0002] There are many nameplates and signage parts on the car, which need to be partially painted in a specific color to highlight and look beautiful. For example, the letters A, B, and C of a certain car brand's signboard need to be painted in black according to the requirements of the design drawings. For this kind of products that only need to paint the letter area on the surface of the parts, it is necessary to use a mask during production to cover the parts that do not need to be painted other than the letters of the parts, and then paint the letter areas that need to be painted. [0003] Before painting, it is necessary to open the upper cover of the hood, place the parts on the corresponding hood base, then lock the upper cover of the hood, and spray paint with an ordinary compressed air spray gun. Th...

AI Technical Summary

Problems solved by technology

Due to the above-mentioned spraying process, affected by the manufacturing accuracy of the cover and the slight deformation of the product, there will always be some small gaps between the upper cover of the cover and the surface of the parts, so some paint mist materialized by the compressed air will fly through the gaps to unnecessary painted area

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