| Diagram of Measuring |
| Typical | Typical | |
No. | Allowed Tolerances | Measured | Measured | ||
Method | |||||
|
| Value (mm) | Value (inch) | ||
|
|
| |||
G1 |
| a. Alignment of longitudinal bed slide | 0.018mm | 0.0007" | |
|
| ways in vertical plane: 0.04mm (0.0015") |
|
| |
|
|
|
|
| |
|
| b. Parallelism of transverse direction: | 0.03mm | 0.0012" | |
|
| 0.04mm (0.0015") in 1000mm (39.370") |
|
| |
|
|
|
|
| |
G2 |
| Parallelism of tailstock to longitudinal |
|
| |
|
| motion carriage: |
|
| |
|
| a. In vertical plane 0.02mm in 500 mm | 0.01mm | 0.0004" | |
|
| b. In horizontal plane 0.02mm (0.0008") in | 0.01mm | 0.0004" | |
|
| 500mm (19.685") |
|
| |
|
|
|
|
| |
G3 |
| Cam action of spindle 0.015mm (0.0006") | 0.008mm | 0.0003" | |
|
|
|
|
| |
G4 |
| Spindle nose runout 0.01mm (.0004") | 0.005mm | 0.0002" | |
|
|
|
|
| |
G5 |
| Spindle taper runout: |
|
| |
|
| a. At end of spindle nose 0 to 0.01mm | 0.005mm | 0.0002" | |
|
| (0.0004") |
|
| |
|
| b. At end of 300mm (11.811") test bar 0 to | 0.018mm | 0.0007" | |
|
| 0.02mm (0.0007") |
|
| |
|
|
|
|
| |
G6 |
| Parallelism of spindle center line to |
|
| |
|
| longitudinal motion of carriage: |
|
| |
|
| a. In vertical plane: 0.02mm (0.0007") in | 0.005mm | 0.0002" | |
|
| 300mm (11.811") |
|
| |
|
| b. In horizontal plane: 0.015mm (0.0006") | 0.013mm | 0.0005" | |
|
| in 300mm |
|
| |
|
|
|
|
| |
G7 |
| Spindle center runout: 0.015mm (0.0006") | 0.01mm | 0.0003" | |
|
|
|
|
|
G0509G Precision Lathe Inspection Record |