Bending machine and operation method thereof

• Main Authors: LI ZHAOJUN, CHEN SHANGGUI, ZHENG SHENGFA, LI ZHIDAN
• Format: Patent
• Language: English
• Published: 09.12.2015
• Subjects: MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PUNCHING METAL; TRANSPORTING; WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL

The invention discloses a bending machine and an operation method thereof, and relates to the technical field of bending machines. The bending machine comprises a machine frame and a die arranged on the machine frame. The die comprises an upper die body and a lower die body which are matched with each other. Oil cylinders are arranged above the upper die body, can provide power for the upper die body, and can make the lower die body achieve flexibility compensation. The operation method includes the step that after the upper die body runs downwards to a lower stop point and completes workpiece bending, the three oil cylinders continue to be controlled to conduct output so that the middle of the upper die body can protrude downwards and deform, wherein the deformation amount of the middle of the upper die body can just offset the deformation amount generated when the lower die body bears force and is indented downwards. The bending machine and the operation method of the bending machine can solve the problems that in the past, the bending linearity is low and automatic flexibility compensation can not be achieved.