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A CNC press brake is an industrial machine that utilizes a CNC system to precisely control the bending process of metal sheets.It is equipped with universal or specialized dies to shape cold metal sheets into workpieces with various geometric cross-sectional profiles.
Designed specifically for cold-rolled sheet metal processing,it is widely used in industries such as automotive manufacturing,aircraft production,light industry,shipbuilding,container fabrication,elevator manufacturing,and railway vehicle construction.
The core of this equipment lies in its CNC system,which automatically adjusts parameters such as ram stroke depth,left-right tilting,back gauge position,pressure tonnage,and ram approach speed.It supports multiple actions including ram descent,jog mode,continuous operation,pressure holding,ram return,and mid-cycle stopping.Multiple bends with identical or different angles can be completed in a single loading operation.
The coordinate axis control of modern CNC press brakes has evolved from early single-axis systems to configurations with up to twelve axes,significantly enhancing machining accuracy and efficiency.
Based on different drive technologies,CNC press brakes can be categorized into several types.Electro-hydraulic servo CNC press brakes employ electro-hydraulic servo control and use grating scales to provide real-time feedback on ram synchronization,ensuring high-precision bending.Electro-hydraulic synchronous CNC press brakes utilize electro-hydraulic proportional servo systems to synchronously control hydraulic cylinder movements,making them suitable for applications requiring high precision,such as aerospace and rail transportation.Servo-driven CNC press brakes employ servo motor drives,offering advantages like high responsiveness and energy efficiency.
Additionally,specific models such as the WC67K series represent typical applications of structural designs like hydraulic transmission and three-point support.Operating a CNC press brake requires adherence to safety regulations,such as prohibiting the bending of over-thick or quenched sheet materials,regularly checking die alignment and pressure gauges,and strictly avoiding manual correction of workpieces during operation.Equipment maintenance includes placing wooden blocks under the ram as a buffer before shutdown and ensuring the CNC program is exited before cutting off the power supply.
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