Application of CNC Turret Punch Press(3)
1. High speed and high precision.
High speed and high precision are the eternal pursuit of the development of the machine tool industry. Improving the speed and precision of CNC turret punch presses mainly includes the following aspects:
1) Improve the dynamic performance of the feeding mechanism. The current feeding mechanism is mainly based on two traditional mechanical transmission methods, ball screw and rack and pinion, and adopts semi-closed loop control, and the positioning speed, acceleration and positioning accuracy are usually not high. With the development of linear motor drive technology and the popularization of applications in recent years, the use of linear motor drive technology, real-time motion position feedback through the grating ruler, forming a closed-loop control, it is possible to change the positioning speed, acceleration and The positioning accuracy is improved to an unprecedented height;
2) It adopts all-electric servo main drive. On the one hand, its bottom dead center has high precision and can be controlled within the range of ±0.05mm. On the other hand, this drive mechanism has rich stamping modes, such as the use of high-speed crankshaft forward and reverse swing. In the processing mode, the time required to complete a 4mm stroke can be controlled within 40ms;
3) Adopt new technologies to minimize downtime, such as automatic mold wear detection technology, automatic mold replacement technology, automatic loading and unloading technology, etc.
2. Real-time intelligence.
With the development of science and technology, the market's pursuit of CNC turret punch is no longer limited to precision and reliability, but has begun to base itself on intelligent solutions. Key technologies to promote:
1) On-line monitoring technology of workpiece quality;
2) Online monitoring technology for mold wear;
3) Automatic selection and replacement of molds;
4) Remote intelligent fault diagnosis and elimination;
5) Establishment and optimization technology of process expert database.
3. Energy saving and environmental protection.
CNC turret punch mainly involves the following three aspects:
1) Noise pollution, can use silent processing mode, optimize machine tool structure, use sound insulation materials and other methods to reduce vibration and noise;
2) Oil pollution, the replacement of traditional hydraulic main transmission by all-electric servo main transmission is an inevitable trend in the development of the industry;
3) Based on the green design concept of life, adopt excellent design concepts and design methods, and strive to rationalize the application of materials.
4. Single-machine flexible processing unit (FMC) and functional compounding.
Large-scale multi-machine flexible processing systems, also known as flexible manufacturing systems, are the future development trend, but in terms of the current domestic market and industrial structure characteristics, small single-machine flexible processing units with complex functions have better market prospects. This small single-machine flexible processing unit is mainly based on a CNC turret punch, with auxiliary functions such as deburring and tapping. At the same time, it is equipped with a three-dimensional warehouse and an automatic loading and unloading system. It has extremely high processing flexibility and efficiency, and can even achieve no Human operation. Compared with large-scale flexible manufacturing systems, it has a small footprint, low equipment purchase cost, better operation reliability and stability, and is more easily accepted by customers, especially suitable for some medium and small professional sheet metal processing. enterprise.