摘要:
A machine tool, such as an internal grinding machine, includes a tool quill exchanging mechanism having an indexable tool quill storage magazine for positioning a replacement tool quill at a pick-up position, a worn or used tool quill discharge mechanism having a tool quill pick-off cam plate and discharge chute in spaced juxtaposition to the tool quill pick-up position. A pivotal tool quill exchange arm includes first and second tool quill stations for releasably retaining a worn or used tool quill and replacement tool quill, respectively, and is pivotal to first and second tool quill exchange positions. At the first tool quill exchange position relative to the tool quill storage magazine and discharge means, a worn or used tool quill is removed from the first tool quill station by the pick-off means and falls into a discharge chute and generally concurrently the second tool quill station removes a new tool quill from the pick-up position and releasably grips same. At the second tool quill exchanger position relative to the toolhead of the machine, the tool quill exchange arm and toolhead are moved relative to one another to align the vacant first tool quill station and replacement tool quill in the second tool quill station of the tool exchange arm with the spindle to remove a worn or used tool quill therefrom and insert a replacement tool quill therein.
摘要:
A grinding machine is provided with a workhead support means having pivotable shaft means on which the support means is pivoted by a servomotor/pinion arrangement controlled by a programmable controller and a position indicating means on the pivotable shaft means that inputs angular shaft position signals to the controller. Adaptive control components may also be included in the control arrangement. The workhead support means is thereby pivotable to vary the angular relationship of the workpart axis to the grinding wheel axis to effect a desired taper or contour grind or to compensate for changes in grinding parameters causing out oftolerance ground workparts. Special releasable clamps are provided to fix a desired position of the workhead support means and yet release same for pivoting movement. Fluid lift mechanisms are also provided to reduce friction between the workhead support means and the adjacent machine base member during pivoting.
摘要:
A machine tool, such as an internal grinding machine, includes a tool quill exchanging mechanism having an indexable tool quill storage magazine for positioning a replacement tool quill at a pick-up position, a worn or used tool quill discharge mechanism having a tool quill pick-off cam plate and discharge chute in spaced juxtaposition to the tool quill pick-up position. A pivotal tool quill exchange arm includes first and second tool quill stations for releasably retaining a worn or used tool quill and replacement tool quill, respectively, and is pivotal to first and second tool quill exchange positions. At the first tool quill exchange position relative to the tool quill storage magazine and discharge means, a worn or used tool quill is removed from the first tool quill station by the pick-off means and falls into a discharge chute and generally concurrently the second tool quill station removes a new tool quill from the pick-up position and releasably grips same. At the second tool quill exchanger position relative to the toolhead of the machine, the tool quill exchange arm and toolhead are moved relative to one another to align the vacant first tool quill station and replacement tool quill in the second tool quill station of the tool exchange arm with the spindle to remove a worn or used tool quill therefrom and insert a replacement tool quill therein.
摘要:
A grinding machine is provided with a workhead support means having pivotable shaft means on which the support means is pivoted by a servomotor/pinion arrangement controlled by a programmable controller and a position indicating means on the pivotable shaft means that inputs angular shaft position signals to the controller. Adaptive control components may also be included in the control arrangement. The workhead support means is thereby pivotable to vary the angular relationship of the workpart axis to the grinding wheel axis to effect a desired taper or contour grind or to compensate for changes in grinding parameters causing out oftolerance ground workparts. Special releasable clamps are provided to fix a desired position of the workhead support means and yet release same for pivoting movement. Fluid lift mechanisms are also provided to reduce friction between the workhead support means and the adjacent machine base member during pivoting.