Andy servo application in deep hole drilling machine
1 Introduction
Deep-hole drilling machines are specialized machine tools for drilling holes deeper than the diameter, mainly for automotive powertrain manufacturing, auto parts manufacturing, fuel injection parts processing, mold manufacturing, deep hole processing, special Deep hole machining for use parts.
At present, full-servo CNC drilling machine has been gradually applied in processing enterprises. All-servo drills have good advantages in terms of output, efficiency, labor intensity, and product quality. The application of the servo driver produced by Dalian Andy CNC Co., Ltd. in the deep hole drilling machine provides a good solution for the domestic CNC drilling machine.
2, CNC drilling machine control components selection
The main control system of the machine tool adopts the Kane Emperor CNC system. The spindle adopts Andy's ADSD-AS series asynchronous servo control. The power is 7.5KW. It can achieve stepless speed change, wide speed range, and high speed control accuracy. Precision and finish in drilling. The servo motor and the spindle are moved up and down, and the motor moving back and forth in the spindle uses Andy servo ADSD-S system synchronous servo motor. It has high reliability and stability and very complete protection functions: over current, over voltage , overload, motor overheating, encoder failure, regenerative fault, undervoltage or instant power failure, overspeed, excessive error and other protection. It can ensure the bit position of the drill and the high precision machining of the workpiece. The technical parameters of the three axes are:
· Table feed motor (X axis) 2.0KW 7.7Nm, 2000rpm
· Spindle up and down movement motor (Y axis) 2.0KW 7.7Nm, 2000rpm
· Spindle forward and backward movement motor (Z axis) 1.5KW 6N.m, 2500rpm
3, servo performance analysis
The servo performance requirements of the feed axes X, Y, and Z are mainly the high dynamic response and high positioning accuracy of the servo system. The Dalian Andy synchronous servo is based on the DSP+FPGA+IPM hardware platform and has a high speed frequency. Response, speed response bandwidth is 450HZ, ranking in the forefront of domestic servo; with resonance suppression function, can be accurately tuned, eliminate vibration; control accuracy can reach 1 pulse, the maximum input frequency can reach 500Kpps, which is a good guarantee of advance The drive requirements for the shaft.
For spindle servos that require fast start-stop characteristics and stable speed control, Dalian Andy asynchronous servo drives are based on DSP+IPM hardware control, with an open QMCL language, and can be set according to the user's use of the program.
4, control schematic
The following figure is the wiring diagram of the Kane Digital Control System and feed axis servo.
5. Concluding remarks
The application of Andy servo in CNC deep-hole drilling machine can meet the user's requirements in terms of control accuracy, and provides a good solution for the application of domestic servo in deep-hole drilling machine.
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