Multi-axial synchronous control system and method for all-electric bending machine

Abstract

The invention discloses a multi-axial synchronous control system and a multi-axial synchronous control method for an all-electric bending machine. The multi-axial synchronous control system comprises a motion control board clamp, a numerical control system and a plurality of groups of slide block driving mechanisms, wherein each group of the slide block driving mechanisms comprises a servo driver, a permanent magnet synchronous servo motor, a synchronous belt transmission mechanism, a ball screw and a grating scale; the permanent magnet synchronous servo motor is connected with the ball screw through the synchronous belt transmission mechanism; the bottom end of the ball screw is arranged on the top end of a bending machine slide block; the grating scale is arranged on the back of the bending machine slide block and is on the same vertical axis with the ball screw; the permanent magnet synchronous servo motor is connected with the servo driver; and the servo driver and the grating scale are respectively connected with the numerical control system through the motion control board clamp. According to the system, the synchronous operating performance and the bending positioning precision of multiple permanent magnet synchronous servo motors can be obviously improved.

Description

technical field [0001] The invention relates to the technical field of industrial automation control and bending machine numerical control, in particular to a multi-axis synchronous control system and control method for an all-electric bending machine. Background technique [0002] Sheet metal bending is an important type of sheet metal processing. This process adopts a complete set of upper and lower molds, and the metal sheet is plastically deformed and folded into a sheet metal part with a predetermined angle by extrusion in a cold state. The process has the advantages of good versatility, simple process and high forming quality, and has been widely used in electrical appliances, shipbuilding, aviation, heavy machinery manufacturing and other industries. [0003] In order to realize the numerical control of the bending machine, improve the positioning accuracy and synchronization accuracy, and overcome the inherent shortcomings of the traditional hydraulic bending machin...

AI Technical Summary

Problems solved by technology

[0004] However, in the actual use of high-power all-electric bending machines, there is a phenomenon of position asynchrony caused by the unbalanced force of each motor, which leads to strong mechanical coupling, and strong mechanical coupling will cause moving parts such as sliders to twist. Inclined, aggravate the wear of the transmission components such as the screw, reduce the machining accuracy and the life of the machine tool, and damage the driving components and the traveling mechanism in severe cases

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