Automatic reciprocating spraying device

Abstract

The invention discloses an automatic reciprocating spraying device. The automatic reciprocating spraying device mainly comprises a workpiece spraying assembly, a clamping rotating movement unit, a spraying adjusting unit and a reciprocating movement unit. The workpiece spraying assembly comprises a protection sleeve and a workpiece. The clamping rotating movement unit comprises a first stepping motor, a fixed lower tip, a self-rotation upper tip, a lock nut and a clamping air cylinder. The spraying adjusting unit comprises a spraying platform, a T-shaped guiding shaft support, a connecting shaft and a spray gun. The reciprocating movement unit comprises a second stepping motor, a coupler, a ball screw, a fixing side support, a supporting side support, guiding shafts, linear bearings and a guiding shaft support. Upright fixing of the workpiece is guaranteed through the fixed lower tip and the self-rotation upper tip, pressing and detaching of the workpiece are achieved through the clamping air cylinder, the spraying platform is connected with the linear bearings on the guiding shafts and a nut on the ball screw, and the linear movement of the spraying platform is achieved; and the stepping motor drives the workpiece to do the rotation movement, and the automatic reciprocating spraying device can guarantee the spraying thickness and uniformity for the sprayed workpiece.

Description

technical field [0001] The invention relates to an automatic reciprocating spraying device, in particular to a device for uniformly spraying the outer surface of a long tube rod workpiece along the axis and circumferential direction. Background technique [0002] In industrial production, the surface of most pipe and rod parts needs to be attached with special coatings to achieve specific functions. For this type of workpiece, there are three most commonly used processing methods: spray coating, roller coating and dip coating. The roller coating method and the dip coating method do not strictly control the coating thickness and the coating uniformity is poor, while the spray coating method has great advantages in terms of coating thickness and uniformity. [0003] In the automatic reciprocating spraying device, most of them use the clamping device to clamp the workpiece, and realize the spraying on the surface of the workpiece by means of the rotary motion of the workpiece ...

AI Technical Summary

Problems solved by technology

In the past automatic reciprocating spraying devices, the reciprocating motion of the spraying table mostly uses a linear motion unit combined with a linear guide rail and a ball screw. The structure is relatively complicated, the installation and debugging are relatively difficult, and the cost is high.

However, the use of synchronous belt and chain transmission to drive the working platform has the disadvantages of low positioning accuracy and poor running stability.

In addition, for pipe and rod workpieces that only need to be sprayed on the middle part, manual hand-held spray guns are often used for spraying. Manual spraying is inefficient and cannot guarantee the uniformity and stability of the surface coating of the workpiece.

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