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US 10,058,969 B2Granted
Dual-spindle grinding machine
AssigneeEmag Holding GmbH
InventorArmin Eberhardt
Life of this patent
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Abstract
A grinding apparatus has a support frame and first and second carriages horizontally displaceable on the frame. Respective first and second workpiece spindles are each capable of holding and rotating a workpiece and are vertically displaceable on the first and second carriages. Respective first and second grinders on the frame carry respective first and second grinding wheels and are oriented to engage and machine workpieces held and rotated by the workpiece spindles. One of the grinders is movable horizontal or vertically on the frame.
Claims11
A grinding apparatus comprising:
- a support frame;
- first and second carriages horizontally displaceable on the frame;
- respective first and second workpiece spindles each capable of holding and rotating a workpiece and vertically displaceable on the respective first and second carriages;
- respective first and second grinders carried on the frame, carrying respective first and second grinding wheels, and oriented to engage and machine workpieces held and rotated by the workpiece spindles, one of the grinders being movable horizontal or vertically on the frame;
- and
- third and fourth grinders carried on the frame and oriented to engage and machine workpieces held and rotated by the workpiece spindles, two of the grinders being movable horizontally on the frame and another two being movable vertically thereon.
3 more elements
A grinding apparatus comprising:
- an upright frame;
- first and second carriages horizontally displaceable on the frame;
- respective first and second spindle drives having respective first and second vertical rotation axes vertically displaceable on the first and second carriages and respective first and second chucks adapted to hold workpieces to be machined;
- a center grinder carrying a large-diameter grinding wheel and vertically displaceable on the frame, the center grinder rotating the respective whe3e1 about a vertical axis;
- first and second outer grinders carrying respective first and second small-diameter grinding wheels, flanking the center grinder, and horizontally displaceable on the frame;
- and
- third and fourth grinders carried on the frame and oriented to engage and machine workpieces held and rotated by the workpiece spindles, two of the grinders being movable horizontally on the frame and another two are movable vertically thereon.
4 more elements
Dependencies are inferred from the claim text.