XY platform moving mechanism for laser additive manufacturing

Abstract

The invention relates to the technical field of additive manufacturing, and particularly discloses an XY platform moving mechanism for laser additive manufacturing. The XY platform moving mechanism comprises a platform frame formed by combining and mounting a support frame and a panel, the panel is positioned at the top of the support frame, and an X-axis transmission mechanism and a Y-axis transmission mechanism with the same structure and a cam mechanism are respectively mounted between the panel and the support frame; and the cam mechanism is positioned between the X-axis transmission mechanism and the Y-axis transmission mechanism. Through the design and cooperation of all the structures, the whole driving power mechanism is integrated in the platform frame while the platform meets traditional X-axis and Y-axis direction movement, so that the support space at the bottom of the equipment platform is fully utilized, the mechanism complexity at the top of the platform is simplified, the operation space above the equipment platform is expanded, and meanwhile, the equipment is more convenient to transfer.

Description

technical field [0001] The invention relates to the technical field of additive manufacturing, in particular to an XY platform moving mechanism for laser additive manufacturing. Background technique [0002] Additive manufacturing technology is commonly known as 3D printing technology. During product production, it is often necessary to cooperate with the XY platform moving mechanism to complete the production and processing of the entire product. At present, the XY moving mechanism used in laser additive manufacturing equipment adopts X and Y axes. The direction is set by the screw stepping drive or the chain transmission mechanism. Regardless of the size of the equipment, the two drive units are set up on the surface of the platform, and the printing nozzle is used as the moving object instead of the pallet. For example, the public patent CN108407041B, A multi-ceramic material additive manufacturing molding system, which leads to the installation of equipment such as wirin...

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Problems solved by technology

[0002] Additive manufacturing technology is commonly known as 3D printing technology. During product production, it is often necessary to cooperate with the XY platform moving mechanism to complete the production and processing of the entire product. At present, the XY moving mechanism used in laser additive manufacturing equipment adopts X and Y axes. The direction is set by the screw stepping drive or the chain transmission mechanism. Regardless of the size of the equipment, the two drive units are set up on the surface of the platform, and the printing nozzle is used as the moving object instead of the pallet. For example, the public patent CN108407041B, A multi-ceramic material additive manufacturing molding system, which leads to the installation of equipment such as wiring, piping, and driving slide rails on the top of the equipment platform, resulting in an extremely complicated structure on the top of the entire equipment platform, while the inside of the bottom bracket of the equipment The space is often in a large area of ​​vacancy, which makes the whole equipment appear cumbersome and inconvenient to carry.

[0003] In addition, the existing XY platform moving mechanism has a complex structure and a high failure rate, and because the driving motor needs to continuously perform positive and negative rotations, displacement deviations are prone to occur after continuous work, even if it is a slight deviation, but the deviation value is gradually accumulated will gradually increase, and eventually lead to product quality problems, so it is necessary to frequently calibrate the parameters of the stepper motor

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