BLOCK CYLINDERS

8-Station Rotary Indexing Machine for Machining Adjustable Wrenches	Block Cylinders with Bearing Eyes
	Rotary Valve Couplings

Adjustable (crescent) wrenches are machined on an 8-station rotary indexing machine. Each station has positioning and clamping assemblies for three wrenches. The assemblies are designed to clamp several wrench sizes simply by changing adaptor pieces. Loading and unloading are fully automated.

Operation sequence by station:
1.	Load and clamp three wrenches
2.	Counterbore
3.	Drill core diameter
4.	Drill
5.	Tap
6.	Countersink
7.	Deburr square hole
8.	Unclamp and eject

The photo and drawing below show a typical clamping assembly (three per station). A Block Cylinder with Bearing Eyes is linked to a clamping lever, which carries a contoured contact button to position and clamp the workpiece.

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Special Finishing Machine for Investment Castings

Block Cylinders with Bearing Eyes

The finishing machine in this example deburrs an investment casting with six independent cuts, and finish bores a cored hole.

Operation sequence:
1.	Load workpiece.
2.	Press start button.
3.	Cylinder 1 (below, right) closes protective covering.
4.	Cylinder 2 (below, right) clamps workpiece. To avoid damage due to impact, cylinder 2 is dampened.
5.	After clamping, cylinder 3 (below, right) moves the first deburring tool around the workpiece, then back to home position.
6.	Block Clamps 4-5 (below, right) and 6-8 (below, left) perform the next five deburring operations while boring takes place.
7.	Once finished, cylinder 2 unclamps, and cylinder 1 opens the protective covering automatically.

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