SJBS has incorporated a 5-axis mill-turning machine that produces crankshafts in a single mill operation. The 5-axis capability allows for the complex milling and boring of crankshaft construction to very precise tolerances.
Precision manufacturing requirements are essential to ensure that assembly cycles for large cranks can be carried out on a single machine include the turning of all inside and outside contours, milling of the counterweights, pin drilling, and the precise boring of the bearing and rod journals.
To ensure that necessary tolerances are met during all the machining steps, an integrated measuring probe controls, and if necessary, corrects the fabrication process automatically.
Advantages of the new mill-turning machine include:
- Considerable reduction of set-up operations
- Precise relative position between the individual boring and milling operations
- Steady and reproducible quality thanks to in-process measuring
- High surface quality and precise diameters that make additional grinding work unnecessary
The 5-axis mill-turning machine is an example of SJBS's constant drive to improve the quality of our product and streamline our manufacturing processes.