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 mainly used to grind thread nuts with gothic grooves, suitable for automobile steering worms and ball screws in batch production。
【NC system configuration】
1、SIEMENS 828D, controlling 4 NC axes
2、Axis X: Cross feed of wheelhead full close-looped
Axis Z: Longitudinal table traverse
Axis C: Rotation of work spindle
Axis A: swiveling of helix angle
【Working accuracy】
Thread accuracy obtainable
Limit lead error 0.005mm
Accumulative error at a length of50mm 0.009mm
【Technical characteristics】
1、Wheel dressing is made by a formed diamond roller to achieve rapid and precise wheel dressing
2、Adopting a newly-developed workhead structure doubles work spindle speed, thus increasing greatly machine productivity
3、Special-built soft program makes the machine have automatic grinding cycle, wheel dressing and self-compensation for wheel dressing amount
4、Wheel spindle employs a high speed E-spindle
5、Users can use one-way or two-way auto-grinding cycle function
6、Online device for pre-cut thread alignment can be an optional configuration to users
7、Efficient centrifugal oil mist exhauster is available
【Main specification parameters】
1、Max. diameter mounted | 150mm |
2、Max. diameter of chuck | 300mm |
3、Max. diameter of thread to be ground | 125mm |
4、Min. diameter of thread to be ground | 20mm |
5、Max. thread length to be ground | 125mm(cylindrical thread) |
6、Pitch | 0.5-24mm |
7、Max. helix angle | 12°L,12°R |
8、No. of starts | 1~45(any) |
9、rapid table traverse speed | 6000mm/min |
10、rapid wheelhead approach & withdrawal speed | 3000mm/min |
11、work spindle speed | 0.2-85r/min |
12、Max. wheel spindle speed | 24000r/min |
13、Max. wheel velocity | 45m/s |
14、Wheel size | |
Max. diameter | φ60mm |
Min. diameter | φ18mm |
15、Max. weight of workpiece | 15㎏ |
16、Machine overall dimension (L×W×H) | 2400×2260×2500mm |
17、Machine weight | approx.4000kg |