Cutting Adaptive Control System and Control Method for Deep Hole Boring Machine

Abstract

The invention provides a self-adaption control system for cutting of a deep hole boring machine. The self-adaption control system comprises the boring machine. A programmable logic controller is arranged on the boring machine. An analog / digital conversion module, a digital / analog conversion module and a CAN communication module are integrated on the programmable logic controller. A spindle motor is connected with the analog / digital conversion module through a current transformer and a current transmitter in sequence. A hydraulic pressure sensor and a coolant pressure sensor are connected with the analog / digital conversion module. The programmable logic controller is connected with a servo driver through the digital / analog conversion module and is connected with a control console touch screen through the CAN communication module. A control method includes the steps of tool adjustment, coolant adjustment, spindle motor adjustment, supporting plate adjustment, oil feeder adjustment, hydraulic device adjustment, system emergent stop adjustment, current collection and transmission, cooling pressure collection, tool speed switching, system constant power adjustment, overcurrent and undercurrent protection, cooling protection, system failure alarming and workpiece counting.

Description

technical field [0001] The invention relates to the technical field of mechanical processing equipment control, in particular to an adaptive control system and control method for deep hole boring machine cutting. Background technique [0002] Deep hole boring machine is a special machine tool for processing cylindrical deep hole parts. Hydraulic device is used for oiler tightening and workpiece jacking, which is safe and reliable. [0003] When the deep hole boring machine is boring, its cutting efficiency is often the key to the productivity of the whole process. The boring and milling process is an extremely complex, multi-factor related, highly nonlinear and strongly coupled process. The main factors affecting the quality and efficiency of boring machining are tool wear, chatter, etc., which will directly reflect the change of cutting force. Because the cutting force can quickly and accurately reflect the state changes of the machining process. Therefore, it is partic...

AI Technical Summary

Problems solved by technology

[0005] 1) The material of the workpiece to be processed is different. If the cutting speed is fast, the knife will be hit; if the cutting speed is slow, the processing time will be long and the efficiency will be low;

[0006] 2) When the cooling pump fails, the system cannot effectively monitor, and the processing is still in progress at this time, and the tool and workpiece are damaged;

[0007] 3) The text display interface is inconvenient to operate

The traditional cutting force measurement method is obtained by direct measurement with a dynamometer. Although this measurement method is simple, it has obvious shortcomings: (1) The size of the dynamometer limits the size of the workpiece; (2) ) The installation and debugging technology is complicated and time-consuming; (3) The force measuring instrument is quite expensive; (4) The force measuring instrument sometimes does not reflect the actual cutting force well

Now most of the machine tools in factories are still old-fashioned traditional machine tools, the wiring is quite complicated, the failure rate is high, and it is difficult to eliminate, resulting in excessive investment in equipment investment and maintenance.

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