Energy-saving type liquid nitrogen cooling auxiliary laser punching device and method

• Main Authors: REN XUDONG, YANG YU, JIAO JIAFEI, ZHOU WANGFAN, TONG ZHAOPENG, WANG JIABO
• Format: Patent
• Language: Chinese; English
• Published: 22.02.2019
• Subjects: CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

The invention relates to an energy-saving type liquid nitrogen cooling auxiliary laser punching device and method. The device comprises a laser punching system, a liquid nitrogen cooling system, an optical energy recycling system and a PLC control system; parallel laser is adopted to carry out laser processing through a light guide and dividing system, a metal sheet to be machined is fixed to a three-dimensional moving platform, the three-dimensional moving platform controls the displacement direction and speed through the PLC control system, in the machining process, the liquid nitrogen cooling system is adopted to rapidly cool machined holes, meanwhile, a luminous energy battery plate is adopted to recycle the light pollution generated during machining, laser punching quality can be improved, and technical defects of microcracks, deforming and the like generated by machining heating can be overcome. 本发明涉及种节能型液氮冷却辅助激光打孔的装置与方法，包括激光打孔系统、液氮冷却系统、光能回收利用系统与PLC控制系统，本发明采用平行激光通过导光分光系统进行激光加工。待加工金属薄板固定在三维移动平台上，三维移动平台可以