Somic America proudly introduces its second Okuma America Corporation Lathe 2SP-2500h lathe, replacing the 2SP-25 used for over 20 years!
The new lathe is designed for automation, typically featuring a gantry and dual carousels for automatic part loading, but it’s configured for manual operation to replace outdated equipment. It includes advancements such as a direct-drive spindle, Windows-based controls, and Okuma-built hardware, allowing more advanced operations than previous Fanuc systems.
The 2SP-2500h offers improved tool-path coordination, with both the chuck and turret moving. Unlike the 2SP-25, which had a stationary chuck and turret movement in the X and Z directions, the 2SP-2500h’s turret moves in the Z direction, and the chuck is mounted on a carriage for X-direction movement. This enhances coordination, tool path creation, and machining precision.
A key upgrade is the Windows-based system, providing an advanced platform compared to older standalone controllers and servos. It features integrated systems for maintenance monitoring, file management, and a technical reference library. The 2SP-2500h also uses the TMAC (Tool Monitoring Adaptive Control) system from Caron Engineering to monitor spindle motor power in real-time, preventing tool failure by analyzing horsepower usage and detecting anomalies.
Configured as a groove lathe, it machines three sizes of SBJ parts without through-spindle coolant. Programming was done in-house, optimized from legacy toolpaths and modeled in Solidworks before conversion to Okuma format. Unlike most new machines, this lathe was manually programmed for specific Somic production needs.
The Okuma 2SP-2500h handles large production volumes, with a cycle time of about 20 seconds for two pieces (approximately 10 seconds per part), meeting Somic’s high-volume requirements. It can machine parts for various product lines, including the 150B Corolla, 320B, 550B, and Venza service parts.
The lathe features a Hainbuch mandrel assembly for quick changeovers and an external high-pressure coolant system generating up to 1000 psi, improving chip control. The machine’s operation involves a pusher locating the part, clamping it, boring, and cutting the groove profile with a two-piece groove tool, allowing cost-effective replacement of tool components.
Next steps include connecting power, setup by Robert E. Morris Co., final acceptance testing, a capability study, and a high-volume production test (HVPT). Once completed, the lathe will be moved to its production line. The older lathe, machine 342, will be relocated, and machine 354 retired. This investment underscores Somic America’s commitment to cutting-edge manufacturing, enhancing efficiency and reliability in high-volume production for the automotive industry!