With the rapid development of the machinery manufacturing industry, the traditional general machine tool can no longer meet the changing parts processing needs of the shopping mall. CNC machine tools have undeniably become the mainstream processing equipment of today's machinery manufacturing. In response to the special application needs of the machine tool industry, Megmeet has launched the MV series of high-function spindle drives. Especially for the high-end application of machining centers and various multi-tasking machine tools, SV-MASTER has won the common praise of customers in a short period of time with its excellent function.
The spindle drive on the machining center, high-speed tapping machine, compound turning and milling centerpiece, etc., is difficult to meet the requirements of the domestic brand drive because of its high control function demand, and the high price of foreign brands is difficult for many customers to bear. The prominent use of Megmit's SV-MASTER drives in these applications provides an answer to this awkward question. In a compound turning and milling site, SV-MASTER was used to replace the original domestic brand, and after trial processing, the customer exclaimed: "This is the level in line with international standards!" ”
The application of SV-MASTER in the multi-turning and milling distraction scheme
Compound turning and milling can not only end the functions of cylindrical surface, arc, cone, curved surface, end face, boring inner hole, turning inner and outer male/inch, modular thread, grooving, drilling, knurling, push-pull groove, threading and other general lathes, but also end the surrounding surface processing, such as milling polyhedron, milling groove, milling anilox chute, milling surface arc, surrounding surface drilling and rigid tapping. Regarding the function of the general lathe, it is required that the speed stability of the spindle in each section should be good, and the torque should be fast when the load is abruptly changed; Regarding the surrounding surface processing, the spindle is required to have the function of positioning indexing, the positioning accuracy is required to be high, and the 0-speed locking force is large after the positioning is completed. The professional planning concept of SV-MASTER makes this special machine function even more enjoyable.
· The whole process runs in the pulse azimuth mode
The optional control mode of SV-MASTER can be selected as the whole azimuth mode when used in the heart meter, which makes wiring and debugging simplified; There is no need to switch between speed and azimuth mode, and the yield is advanced.
· Multiple sets of speed PI parameter setting
3 sets of speed PI parameters make the controller adapt to the mechanical characteristics of the motor in different speed sections, and the speed stability of each section reaches the most ideal effect, and the machining accuracy is greatly improved. If the 3.7kW 8000rpm rated speed motor spindle is driven, the speed fluctuation within 1200rpm can be less than 1 revolution; The speed fluctuation within 8000 rpm is less than 2 revolutions.
·Excellent azimuth control function, so that the 0-speed locking force is large, the axis oscillation is small, the positioning speed is fast and the accuracy is high
Two sets of azimuth gain switching, ending the excellent function of 0-speed vigorous locking and minimal oscillation, so that the stability and machining accuracy of the surrounding surface can be greatly improved. The high-precision rapid positioning and indexing function makes the yield greatly improved.
SV-MASTER in use on machining centers
The machining center is a highly mechatronics product, after the workpiece is clamped, the CNC system can control the machine tool according to different processes to automatically select and replace the tool, automatic tool setting, automatic change of spindle speed, feed, etc., can continuously end drilling, boring, milling, reaming, tapping and other processes. The requirements of the machining center for the spindle are generally large low-speed torque, good stability at high-speed speed, and wide speed regulation scale. Therefore, the selection of the motor is generally a spindle motor with a low rated speed and several times the maximum speed of the rated speed, so the functional requirements of the controller are special. The SV-MASTER is already used in many machining centers.
· High low-frequency torque and high cutting power
The high-function current speed double closed-loop vector control ends the low-frequency and high-torque output. The same standard of machine tools, milling cutters, speed, cutting feed scale can reach about 1.5 times that of other domestic brands.
· Large-scale weak field control of more than 1:5, satisfying the needs of the machining center for stable high-speed finishing speedExcellent depth weak field control function, so that the spindle runs at the high speed of weak field, the speed stability is very high, and the high-speed finishing accuracy is ensured.
· Rapid acceleration, deceleration and positioning, shorten the spindle positioning tool change time, forward productivity
Rated 2000rpm spindle motor, deep weak field operation to 12000rpm, can end the deceleration positioning within 3S, which is equal to the leading level of international brands.
·“ 0" second acceleration and deceleration time, the end of the maximum torque current start and stop
The unique control algorithm can end the "0" second acceleration and deceleration, that is, after the acceleration and deceleration time is set to a certain extent, the controller will always start and stop the motor with the maximum torque current, so as to achieve the fastest effect of acceleration and deceleration without causing overcurrent problems. The maximum possible forward production power.
The application of SV-MASTER in high-speed tapping machines
Tapping, also known as tapping, is the processing of the internal thread of the screw hole. Now the most widely used CNC machine tool is rigid tapping, also known as spindle synchronous feed tapping, which is to adjust the feed through the feed shaft following the spindle speed to reach the processing requirements of high-precision screw holes, feed speed V = spindle speed n * pitch s. The data processing ability of the numerical control system, the servo feed entourage, and the smoothness of the spindle tapping acceleration and deceleration will affect the effect of rigid tapping. The high-speed tapping machine specially used for tapping has higher requirements for the function of each component. SV-MASTER has been successfully used in high-speed tapping machines, and the tapping effect has been well received by customers.
·Excellent azimuth control pulse follower function maximizes rigid tapping speed
When just attacking, the better the obedience of the spindle to the pulse command of the numerical control system, the better the synchronization effect of the feed axis. In general, the shorter the acceleration and deceleration time, the greater the error of the pulse follower. The SV-MASTER's excellent azimuth control function ensures small pulse errors even when the acceleration and deceleration time of the initial attack is very short, and then ends the rigid tapping at high speeds.
· Same pulse command interface, end speed and azimuth control switching
The pulse command interface can be used as the terminal X7 and X8 on the I/O expansion card, and can also be used as the speed command reference source in the speed mode, and can also be used as the direction command reference source in the azimuth mode. In the case of rigid tapping, the SV-MASTER only needs to give a terminal signal to cut the speed to the azimuth, and the switching from speed to azimuth can be completed, and the rigid tapping process can be ended.
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