The application of days servo controller in double housing planer

One, summarize a few days ago, limited company of days science and technology carries on manufacturer of some large and mechanical production of 8 meters of double housing planer transform a project. Because this equipment is passed 30 use for years, incomplete is worth already place remnant very few. The technical personnel of days science and technology falls in the condition with rigid basic and whole structure, use controller of servo of days IMS series to undertake transforming to system of control and electric machinery drive, the made advanced level that reachs machine tool of current and large numerical control, increase the real value of equipment oneself greatly. Primary facility circumstance introduces: 8 meters of double housing planer left factory 1971, model is B2031, advocate electric machinery collects electromotor of in order to, the; of drive of aircrew of dc machine timing that generation set is the sources of energy is perpendicular tool carrier, side tool post, the handle that carries transmission case changes speed and feed and feed way, use did not add pilot drive of electromotor of common three-phase asynchronous. 1, workbench is specific circumstance job mesa: Workbench of 8m × 3m is the biggest load capacity: Rate of job of 12000 ㎏ workbench: 4, 70m/min advocate decelerate machine speed ratio: 1:9Advocate decelerate machine outputs torque: 11000N.

M advocate electric machinery collects electromotor of in order to, the A of drive of aircrew of dc machine timing that generation set is the sources of energy) generate electricity with model of three-phase asynchronous electromotor: JO3 280-4 power: 100KW electric current: 185A sorts dynamo type continuously: ZSF-36.

8/23 power: 138KW outputs voltage: 460V exports electricity: 300Ab) dc motive (string together twice receive) model: ZBD-93-BL power: 60KW rated rotate speed: 1000r/min voltage: 220V electric current: The model of fundamental condition electromotor of 305A2, tool carrier: JO2-32 power: 3KW rated rotate speed: 1430r/min electric current: 6.

5A screw pitch: 8mm 2, transform program 1.

Increase function of milling, grinding. 2.

Workbench job rate is in 0.

02, the limits of 70m/min changes, speed ratio is 1:3500 dig are cut 4, 70m/min milling 20, 70mm/min grinding 1, 1.

5m/min3.

Without extremely not timing, moving stability, creeping, successive job, electric machinery is not calorific. Stability of low speed of system of electric machinery control is good, output torsion is big. (one) workbench is transformed 1.

Wash out former some with electromotor -- the aircrew of dc machine timing that generation set regards the sources of energy as. 2.

Use the communication asynchronous servo of limited company of days science and technology: The technical index that communicates asynchronous servo can be achieved transform a requirement, timing scope wide, low speed is characteristic torsion of good, output is big. Control system is not expensive to the requirement of electric machinery, coder is installed to be able to be controlled on axis of three-phase asynchronous electric machinery. Because power of electric machinery of this system pilot is OK very big, and quotation user is acceptability. 3.

Original design of 8 meters of double housing planer used phone of motive of dc of two 60 kilowatt the series connection on gas, on machinery two axes are shunt-wound, decelerate machine double the drive way that gives into sheet. Use this kind of structure to need two servo controller to control two asynchronous electric machinery to undertake synchronism moves respectively, because decelerate machine is strong link, two inputs axis may cause mechanical interference, reduce control efficiency. Accordingly, decide instead uses electric machinery of a high-power, make the decelerate chance that a sheet gives into sheet afresh. Decelerate compares instead 1:14. 4.

Motive of original direct current is rated rotate speed is 1000r.

P.

M, communication asynchronous electromotor is pressed 6 extremely electric machinery choice. Advocate torque of decelerate machine output is 11000N.

M, decelerate compares 1:14, input torque should be 786N.

M, choose 90kW electric machinery. Controller of communication asynchronous servo can control electric machinery to move in power of constant of above of rated rotate speed. Machine of decelerate of speed of workbench of electric machinery rotate speed outputs torque 1556r.

P.

M 70m/min 7850N.

M1110r.

P.

M 49.

95m/min 11000N.

M1000r.

P.

M 45m/min 12208N.

M0.

444r.

P.

M 20mm/min 12208N.

M5.

The basis uses a case actually of 8 meters of double housing planer, return the oldest rate to be 55m/min commonly. 90kW 6 extremely three-phase asynchronous electric machinery can satisfy the integrated requirement with design index and actual production. Electric machinery parameter: Baseplate date: 315M-6 rated power: 90kW rated rotate speed: 985r.

P.

M rated electric current: 170A rated torsion: 872N.

M moment of inertia: 4.

28 electric machinery deserve to use 1024 lines coder, precision of control fixed position is ± 0.

044. Nextpage (2) tool carrier is transformed 1.

8 meters of double housing planer are original and perpendicular tool carrier, side tool post, the handle that carries transmission case changes speed and feed and feed way, use did not add pilot drive of electromotor of common three-phase asynchronous. Cannot satisfy function of milling, grinding to ask to the control of speed and feed. 2.

Of tool carrier transform incorrect equipment original and rigid structure is made alter, milling head or wheelhead are installed on tool carrier. Gear-box is fixed in likely gear shift is compared, change electric machinery to use servo to control to contain the three-phase asynchronous electromotor of coder. 3.

Electric machinery choice: The rigid structure with ⑴ original tool carrier is not made alter, the installation dimension that chooses electric machinery should agree with former electric machinery. ⑵ cuts a course in dig in, the feed of tool carrier is in the movement when workbench returns, tool carrier does not get power. And when milling, grinding, in workbench job process, the likelihood needs the feed action of tool carrier, right now, tool carrier gets power. Accordingly, the power that chooses electric machinery should be more than former electric machinery. 4.

According to above principle, choose 3.

7kW 4 extremely three-phase asynchronous electric machinery. Electric machinery parameter: Model: YSF3700 rated power: 3.

7kW rated rotate speed: 1500r.

P.

M rated electric current: 8.

2A rated torsion: 24N.

M moment of inertia: 0.

0127 electric machinery deserve to use 2500 lines coder, precision of control fixed position is ± 0.

003. Change gearshift to compare, tool carrier speed and control locate precision is changed in proportion. (3) the system transforms 8 meters of double housing planer to control the pushbutton station with original system, relay to control fashion formerly, it is newlier homebred " 3+1 " system of simple and easy numerical control + servo control, crossbeam rises fall to still use afterwards report to control partly. See figure above. 3, evaluate 1.

This equipment passes 30 old use, incomplete is worth already place remnant very few. In rigid structure basic and in good condition condition falls, use newest control technology to undertake transforming to control and system of electric machinery drive, the real value that increases equipment oneself greatly. 2.

Equipment cuts a function to transform dig, mill by onefold dig, grind muti_function machine tool. 3.

The control system of equipment is controlled by backward before relay, electromotor -- dynamo system raises numerical control, servo to control a system, achieve pilot of current and large machine tool advanced level. 4.

Control precision rises, timing scope increases, have the position to control a function. Can digitlize adjust speed and position, have liquid crystal screen to show. 5.

The operation simplifies, numerical control system is had process designing and run a function automatically. To same treatment, can process designing, duplicate the job for many times. 6.

System but journey of digital set workbench, accelerate treatment rate, improve manufacturing efficiency. 7.

The low speed of servo of days communication asynchronous moves smooth, constant torsion is outputted, can assure different speed paragraph the precision of treatment and stability. Servo of days communication asynchronous is had add, decelerate controls a function, electric machinery is OK and smooth inverting, the stability when making workbench direction alternates does not have concussion. Servo of days communication asynchronous has 0 fast locks to decide a function, in electric machinery 0 fast when, maintain machinery to be not moved. 8.

Original with electromotor, dynamo, aircrew of dc machine timing no matter whether does workbench move, electromotor, generation set should run, wasted a large number of electric energy. Servo of days communication asynchronous is in electric machinery 0 fast when, power consumption is very small, have section report effect. CNC Milling