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A kind of automatic leveling method of sls metal 3d printer

A 3D printer and automatic leveling technology, which is applied to the improvement of process efficiency, additive manufacturing, additive processing, etc., can solve the problems of inability to guarantee the leveling accuracy, inconvenient leveling process, and time-wasting, and achieve easy disassembly , High commercial value, high precision effect

Active Publication Date: 2020-01-14
HANGZHOU DIANZI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the leveling process of the SLS metal 3D printer before use is very inconvenient. Taking EP-M250 as an example, the staff need to repeatedly adjust the three thimble screws through experience, which not only wastes a lot of time, but also cannot guarantee the leveling. flat precision

Method used

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  • A kind of automatic leveling method of sls metal 3d printer
  • A kind of automatic leveling method of sls metal 3d printer
  • A kind of automatic leveling method of sls metal 3d printer

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Embodiment Construction

[0040] The present invention will be further described below in conjunction with accompanying drawing.

[0041] like figure 1 As shown, the present invention is mounted on a SLS metal 3D printer using a leveling device. The SLS metal 3D printer includes a frame, a horizontal slide rail 3 , a powder spreading vehicle 4 , a molding cylinder 1 and a molding platform 7 . Forming cylinder 1 and horizontal slide rail 3 are all fixed on the frame. The powder spreading car 4 and the horizontal slide rail 3 form a sliding pair. The forming platform 7 is installed on the forming cylinder 1 . The scraper 6 fixed on the powder spreading car 4 is located above the molding platform.

[0042] The working process of the SLS metal 3D printer is as follows: the powder spreading car 4 slides along the horizontal slide rail 3, the scraper 6 fixed on the powder spreading car 4 spreads a layer of powder material on the forming platform 7, and the laser beam is sintered on the powder layer to ma...

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Abstract

The invention discloses an automatic leveling method for an SLS metal 3D printing platform. The existing SLS metal 3D printer needs to be manually leveled before use, which not only wastes a lot of time, but also cannot guarantee the leveling accuracy. The leveling device adopted in the present invention includes a horizontal displacement mechanism, a vertical displacement laser ranging mechanism and a micro displacement driving mechanism. The horizontal displacement mechanism includes a traverse drive motor, a base, a rotating shaft, a support shaft, a cam group, a power rod group, a slide block and a traverse slide rail. The vertical displacement laser distance measuring mechanism includes a shell, a punch rod, a turning drive motor, a screw shaft, a laser distance measuring instrument and a turning assembly. The micro-displacement drive mechanism includes a support block and three piezoelectric ceramic actuators. The invention can detect the levelness of the forming platform in the SLS metal 3D printer, and adjust the SLS metal 3D printer to a horizontal state.

Description

technical field [0001] The invention belongs to the field of metal 3D printing technology and micro-displacement drive technology, and in particular relates to an automatic leveling method for a laser sintered metal 3D printer. Background technique [0002] Selected Laser Sintering (SLS) is a process with high material utilization and relatively cheap price, so it is widely used in metal 3D printing technology. The process of the SLS metal 3D printer is to first spread a layer of powder material with a powder spreading vehicle, and the laser beam is sintered on the powder layer to make the irradiated powder bond. After one layer is sintered, the forming platform is lowered to a height of one layer thickness, and the powder spreading vehicle spreads new powder materials on the forming platform, and then the laser beam is sintered again, and this cycle goes on and on, layer by layer, until the printing of the entire 3D object is completed. Work. [0003] Before the entire pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/105B33Y30/00
CPCB33Y30/00B22F10/00B22F12/90B22F12/63B22F10/28B22F12/38B22F12/222B22F12/37B22F12/224Y02P10/25
Inventor 许明章佳奇陈国金
Owner HANGZHOU DIANZI UNIV
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