#１２
Building a highly efficient and compact production line through process integration and loader-based system automation!

1. Currently, two lathes and one machining center were operated by a worker. Therefore, work efficiency was poor and the operating rate did not increase as expected, causing a concern about lack of the company’s competitiveness.
    
2. Since odd-shaped workpiece requires multiple processes, multiple processing machines mentioned above are used. However, this production method indicated poor time balance and took up a large floor space. To enhance the competitiveness, it needs to be automated but the best way to efficiently automate the process for odd-shaped workpieces is unknown.

- First of all, we started reviewing the conventional machining processes performed by the “2 lathes and 1 machining center.”
In order to integrate several machining processes into one machine, we proposed a plan to use an index chuck that allows four surfaces to be machined in one chucking. Although the cycle time per spindle became longer due to the above process integration, the line takt-time has been shortened as much as possible by using the twin-spindle turning machine to perform the same machining operations with two spindles.

 

- In the automatic production of odd-shaped workpieces, it is generally difficult for the loader to handle the workpieces, but our “twin-jaw chuck loader” enables smooth handling.

 

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- Moreover, for ensuring stable operations, a high-pressure coolant pump has been employed to solve the problem of “chip disposal,” which is one of the biggest impediments to unattended operations.

The product in the case study introduced here is the Twin Spindle CNC Chucker ”MW120Ⅱ”

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