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Users will not require their own CNC sawing machine to have the function of machining center

Time: March 17, 2020 Author: Ning Rui, Jinan Back to list

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yes , we have CNC sawing machine When cutting the metal, the bimetal band saw blade sometimes cracked irregularly. The hydraulic transmission system of CNC sawing machine is composed of pump, valve, oil cylinder, oil tank, pipeline and other auxiliary parts. Under the electrical control, the lifting of saw beam and the clamping of workpiece are completed. Through the speed control valve, the feed speed can be adjusted steplessly to meet the sawing requirements of different raw materials. CNC sawing machine is a simple machine tool, users will not require their own sawing machine with the function of machining center. The sawing machine controlled by computer not only improves the sawing power and quality for users, but also the network function of the computer, which will make sawing more closely connected with the rest of CIMS and make the processing more convenient. How to deal with this kind of question, first of all, the CNC saw machine error is big, workpiece loose elements. About the CNC saw to adjust. Look at the quality and accuracy of the saw wheel. There are two saws in the plane. Check whether the condition of guide arm and guide block is outstanding. Check the working condition of the clamping system carefully and adjust the saw clamp to clamp the workpiece.

For ordinary band sawing machine, due to the change of pressure, the change of hydraulic oil temperature and the hysteresis of solenoid valve and relay, the cutting accuracy is poor, and the consistency of batch cutting is not good. In addition, when changing the cutting length of ordinary band sawing machine, the operation is complicated due to the need to adjust the feeding length scale.

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When the saw blade bending reaches a certain valve range value, the system will reduce the speed adaptive or close the feed. It is necessary to make great changes on the basis of the original ordinary band sawing machine, such as changing the original hydraulic unit, adding the saw blade bending monitor, etc. The original hydraulic pressure system remains unchanged when grating ruler is installed on the original ordinary sawing machine for position measurement. The safety function design of the control system software includes silo, storage management and retrieval, classification management of saw parts, monitoring of saw blade bending, material compaction, saw speed, adaptive control of sawing feed speed, etc. In order to meet the requirements of not changing the original hydraulic system at the same time, the system adds a position control module based on the common solenoid valve.

The closed loop position control of servo system is easy. The common solenoid valve only has two states of "on" and "off", and has electromagnetic mechanical lag. The temperature and pressure change of hydraulic oil affect the positioning of the feeding slide table. Therefore, it is difficult to use the traditional control theory to deal with it. In order to close the hydraulic feeding of the feeding cylinder before reaching the target position, and make the feeding cylinder stop just at the target position, is the key to the problem.

Due to the hysteresis and inertia of electromagnetic machinery, it is almost impossible to control the feed sliding table to move 0.1 mm by "on" and "off". In order to ensure the small feeding length and feeding accuracy, the rear Tong makes the feeding slide backward to LK position, and then moves forward to the predicted position. LT closes the feeding solenoid valve. When the feeding cylinder stops, the rear clamp is clamped, and the front clamp is released when the rear clamp is clamped in place When the front tongs are released in place, start feeding.


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