Fax: 0086 916 2296146
E-mail: export@hjmtc.cn
E-mail: hehengrong@hotmail.com
- Main use
- NC system configuration
- Working accuracy
- Technical characteristics
- Main specification parameters
【Main use】
The machine is made to hard-mill ball-screws and Acme screws, able to machine job diameter under100mmbut longer its specification by putting them through bore of the work spindle。
【NC system configuration】
【Working accuracy】
The accuracy of ball-screw machined is up to grade P5
The accuracy of Acme screw machined is up to grade 8
【Technical characteristics】
1、The bed is made of qualified cast-iron with high strength
2、The tool spindle is supported by rolling bearings, and its rotation is driven by an AC motor regulated with a frequency converter, so it runs at a constant peripheral speed
3、Work spindle is driven by an AC servo motor;able to auto-index. A precise angular encoder mounted at the end of the spindle, serving as a reference element of rotation & indexing。
4、The cutter carriage can travel crossly, and each movement is driven by AC servo motor, driving a precision ball-screw to achieve rapid advance and retreat, periodical feeding and auto-compensation for job pitch diameter。
5、Hardness of thread flanks can not be decreased because of hard-milling
6、The machining cost can be reduced by use of mountable & indexing CBN inserts
7、The machining zone is cooled with compression air, so the pollution caused by coolant can be eliminated。
【Main specification parameters】
HJ092 | HJ092×80 | |
1、Specification | φ125×6000mm | φ230×8000mm |
2、Job diameter to be machined | φ40~φ125 | φ40~φ230 |
3、Job length to be machined | 2000~6000mm | 2000~8000mm |
4、Pitch range | 5~40mm | 5~40mm |
5、helix angle range | ±20° | ±20° |
6、No. of thread starts | 1~99(any) | 1~99(any) |
7、travel speed of cutter carriage | 3000mm/min | 5000mm/min |
8、rapid advance & retract of cutter carriage | 10000mm/min | 5000mm/min |
9、Speed of work spindle | 0.5~40r/min | 0.5~25r/min |
10、Speed of cutter spindle | 425~955r/min | 240~640r/min |
11、pitch circle of cutter | φ60,90,135mm | φ90,135,190,235mm |
12、Peripheral speed of cutter | 180mm/min | 240mm/min |
13、Bore diameter of work spindle | φ105mm | φ105mm |
12、Taper bore of tailstock | 5(Morse) | 5(Morse) |
13、Overall dimension | 10750×2380×2172mm | 13460×2250×2500mm |
14、Machine weight | 22000kg | 28000kg |