Horizontal machining centers can keep cutting while an operator services another pallet, depending on the pallet-changer layout and operating sequence. A tombstone or multi-face fixture can use that arrangement to present several workpieces to the spindle in one setup.
When the machine interface supports it, a compatible zero-point or quick-change system can let a fixture be prepared off-machine and exchanged as part of the planned sequence. Actual changeover time depends on the machine, fixture interface, loading method and cell workflow.
A tombstone layout should balance rigidity, datum consistency, tool access, workpiece clearance, chip and coolant flow, and safe loading. The required station count and structure depend on the part envelope, cutting loads, machine table and acceptance requirements.
For suitable parts and production mixes, a multi-face fixture may increase parts per setup and reduce manual re-fixturing steps. Compare the proposed layout with the current process using real part, cycle and changeover data before deciding whether it is worthwhile.
Planning an HMC tombstone or multi-face fixture?
Share the machine table or pallet interface, part envelope, station plan, datum scheme and tool-access limits. We can review a fixture direction against the application before confirming project specifications.
Custom Workholding Fixtures
