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1、With the direct-drive technology, linear motor and the traditionalrotary servo motor + ball screw in contrast to drive the industrys concern. The British in 1845 had invented the linear electric motor, but thelinear motor air-gap is too large resulting in low efficiency, can not be applied. 19th cen
2、tury 70s Kollmorgen also launched, but due to the high cost and low efficiency limited its development. 70s until the 20th century, the linear motor to the progressive development and application of some special area, the 20th century, the beginning of 90s linear motor used in the machine manufactur
3、ing industry,now some of the worlds technologically advanced manufacturers of machining centers inits application of high-speed machine tools, foreign well-known enterprises such as DMG, Ex-cell-O, Ingersoll, CINCI ATI, GROB, MATEC, MAZAK, FANUC, SODICK have rolled out the useof linear motor centers
4、 of the high-speed and high precision. HIWIN linear products as the world leader in the ball screw and linear slide after success in recent years on its own R & D and production of a linear motor, and in the field of high-speed and high precision good performance. HIWIN below the main reference of t
5、he companys advanced high-speed silent SUPER S series screw-type (DN value of 220,000) and the linear motor HIWIN several major features insome of the more so, forthe relevant industry to provide a reference. Accuracy: Precision linear motor drive mechanism by a simple interpolation to reduce the la
6、g issues, positioning accuracy and reproducibility precision, absolute precision, through the position detection feedback control will be more rotary servomotor + ball screw high, and easy to implement. Linear motor positioning accuracy of up to 0.1m. Rotary servo motor + ball screw up to 2 5m, and
7、the requirements of CNC-servo motors -even without coupling gap - thrust bearing - Cooling System - high-precision rolling guide - Nut Block - table closed-loopsystem as a whole transmission part to lighter, higher precision grating. to achieve higher stability, rotary servo motor + ball screw to ta
8、ke dual-axis drive, linear motor is a high-heat components, the cold to take strong measures to achieve the same end, the linear motor will pay a higher price . Price comparison: Linear motor prices to much higher prices, which is restricted by linear motor of the reasons for wider application. Spee
9、d comparison: Speed linear motor with a considerable advantage, linear motor speedof 300m/min, acceleration reached 10g; ball screw speed of 120m/min, acceleration is 1.5g. Speed and acceleration from the contrast, the linear motor has a considerable advantage, and the linear motor in the successful
10、 resolution of fever after the speed will improve on that level, and rotary servo motor + ball screw in the speed limit has been difficult to further increase more. Because of the dynamic response from the movement of inertia and the gap as well as institutional issues such as the complexity of line
11、ar motor also has an absolute advantage. Speed control on the linear motor because of its fast response, wide speed range, you can start to achieve the highest instantaneous speed, high-speed run-time and can stop quickly. Speed range up to 1:10000. Comparison of energy consumption: Linear motors pr
12、ovide the same torque in the power consumption at the time of the rotating servo motor + ball screw more than doubled, rotary servo motor +ball screw is energy saving, by type power transmission components, linear motor control system reliability by stability, a great influence on the perimeterto ta
13、ke effective protective measures and the magnetic traps, rolling off a strong magnetic field on the impact of rail and the absorption of iron magnetic dust. Following this example to make it easier for us to know the linearmotor and therotating servo motor + ball screw a number of characteristics: J
14、apan, a company high-speed gantry type machining center. X, Y-axis linear motor drive using V = 120m/min. Why does the company spin servo motor + ball screw (HIWIN SUPER S series)? SUPER S Althoughthe DN as the value has gone through a screw from the traditional 70000-150000 to 220000 of the acceler
15、ation process, but because of the weakness of pure mechanical transmission, the line speed, acceleration, increased range of travel is always limited . 40 20mm if selected product is vmax = 110m/min, due to the high speed nmax= 5500r/min trip by the critical speed range Nc constraints obviouslynot t
16、oo long. If the large lead 40 40mm products, while Vmax = 220m/min, which obviouslycan not meet the high positioning accuracy of occasions. DN values to achieve 220,000 reflected from one aspect of HIWINdesign, manufacturing standards. If we choose 40 20 (double) mmproduct, in the n 4000 5000r/min, V = 80 100m/min state use, its safety, reliability, service life can be higher than expected.In fact so far, in the high-speed high-precision CNC m
