A universal tool mounting system for a machining center, the universal tool mounting system comprising:
- a drum (A) mounted on a spindle (B), which spindle is mounted inside bearings (D), which bearings are mounted in a casting (C), wherein the spindle (B) and drum (A) are mounted so as to be rotationally indexable about an indexing axis that extends in a direction from a front of the universal tool mounting system to a back of the universal tool mounting system;
- tapered bushes (F) mounted into the spindle (B);
- a brake drum (BE) mounted onto the back of the spindle (B);
- a hydraulic cylinder (G) mounted in the front of the casting (C);
- hydraulic distribution plates (AY) mounted onto the back of the casting (C);
- at least one hydraulic cylinder (L) mounted onto the back of the drum (A);
- a plurality of tool holder unit stations (H) spaced about the indexing axis and mounting into a front face of the drum (A);
- a plurality of tool holder units (M1, M2, M3, M4, M5, M6, M7, M8, M9, M9′, M9″, M10), each tool holder unit mounted to a respective one of the tool holder unit stations, each of the tool holder units supporting a plurality of machining tools;
- additional machining tools (FA), additional to the machining tools of the tool holder units, mounting on the drum (A);
- coolant manifold blocks (AR) that mount onto the drum (A), which coolant manifold blocks are utilized for supplying coolant to the tools of the tool holder units;
- a spindle-and-index drive unit (W) mounting to the side of the casting (C) on linear guideways (BH), the spindle-and-index drive unit (W) configured to selectively perform one of:
- driving live ones of the tools mounted at one of the tool holder unit stations that is located at a first position (VA), which is a position about the indexing axis, and
- indexing one of the tool holder units mounted at one of the tool holder unit stations that is located at the first position (VA), which is a position about the indexing axis;
- the universal tool mounting system further comprising:
- a servo drive motor (AD) mounting to the top of the casting (C), the servo drive motor (AD) being configured to move the spindle-and-index drive unit (W) along on the linear guideways (BH);
- an indexing drive unit (AE) mounted to the top of the casting (C) on further linear guideways (BH) the indexing drive unit (AE) configured for indexing one of the tool holder units located at one of the tool holder unit stations that is at a second position (VB) about the indexing axis;
- a magnetic brake drum assembly mounted onto the hydraulic distribution plates (AY);
- a servo gear drive motor (AK) configured for indexing the drum (A) about the indexing axis and mounted into the back of the casting (C);
- and
- sheet metal covers (BJ) mounted on the drum (A) and on the casting (C).