Chuck / Centerless SG2-C/R
Correspond to various grinding such as seat by two axis interpolation control.
Space-saving internal grinder that can be adopted with chuck type workhead spindle as inherit SG1-IB.
Features
- Provide high accuracy chuck type workhead. Two rollers one shoe type workhead also is provided.
- Wheelhead spindle is given from 80,000 min-1 to 180,000 min-1.
- Succeed high speed two arm loader by servo motor drive for the chuck type workhead.
- Correspond various application such as front type in-process gauge and dressing unit with AE sensor.
- Succeed considerable downsizing compared to the conventional chuck type.
Grinding Specifications
| C type (Diaphragm chuck workhead) |
R type (2 roller 1 shoe workhead) |
|
|---|---|---|
| Outer diameter (mm) | φ8 ～ φ20 | φ1.5 ～ φ16 |
| Inner diameter (mm) | φ3 ～ φ12 | φ1.0 ～ φ10 |
| Width (mm) | 2.5 ～ 20 | 1 ～ 8 |
Inside of Machine
 C type |  R type |
Grinding Examples
| Machine type | SG2-C | SG2-R | ||||
|---|---|---|---|---|---|---|
| Workhead type | Diaphragm chuck | 2 roller 1 shoe | ||||
| Method of grinding |
Reciprocate Grinding | Reciprocate Grinding | ||||
| Work | Diameter |  |
 |
 |
 |
|
| Material | SUJ2 comparable | SUS440C comparable | SUS440C comparable | |||
| Hard- ness |
HRC58～62 | HRC58～64 | HRC58～62 | HRC58～64 | ||
| Stock removal |
φ0.1mm | 0.1mm (onger direction) |
φ0.1mm | φ0.1mm | ||
| Grinding accuracy |
Size variation |
within 2µm (with constant size) |
within ±10µm (sheet depth) |
within 2µm (with constant size) |
within 2µm (with constant size) |
|
| Round- ness |
within 1µm | within 1µm | within 0.3µm (O.D.roundness+) |
within 0.3µm (O.D.roundness+) |
||
| Rough- ness |
within Rz 1.2µm | within Rz 1.2µm | within Rz 1.2µm | within Rz 1.2µm | ||
| Cylind- ricity |
within 2µm | - | within 2µm | within 2µm | ||
| Straight- ness |
within 1µm | within 1µm | within 1µm | within 1.5µm | ||
| R Shape | within 10µm | within 10µm | within 2µm | within 2µm | ||
| Cycle Time |
within 9sec | within 10sec | within 8.5sec | within 12.5sec | ||
Machine Dimensions
