Development history of CNC bending machine

With the development of computer technology, automation technology and modern large-scale production, the demand for multi-variety and small volume production has been greatly developed. In the past, when multiple bending operations were performed on a work piece by a common bending machine, multiple bending of the entire batch of work pieces was required, and the loading and unloading was frequent and the efficiency was low. After the numerical control of the bending machine, the multiple bends requiring for work pieces can be continuously processed through the automatic seasoning back frame and the slider stroke, and the processing precision and product uniformity are guaranteed, the productivity is improved, and the application is good and promising.

In order to improve the control precision and easy operation, the CNC bending machine increases the motion axis. For example, in order to improve the consistency of the product, the convexity compensation control axis of the lower die table is added. In order to make the machining positioning accurate, the rear gear is moved up and down to move the control shaft and the back gauge to move the control shaft; at the same time, the AC servo motor is used instead of DC servo motor, AC motor is self-cooling, brushless structure, with high reliability, high torque, high output power, high dynamic servo and moment of inertia and constant acceleration torque, and has extremely low speed and low torque response time.

The CNC system of the bending machine has also made great progress. From 8 digits to 16 digits, especially the development and application of 32-bit CNC system, the system has undergone great changes in control, programming and management. The high resolution CRT is used for graphic programming and three dimensional dynamic display of the bending process, making the operation more intuitive. The large capacity hard disk or floppy disk of the bending machine control system can store more parts processing programs.

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