BLOCK CYLINDERS

Universal Punching Machine for Steel Channels Made Using Block Cylinders.

Block Cylinders

Large Block Cylinders are ideal for punching applications. This special punching machine consists of a series of modular C-frame punches, adjustably mounted along linear roller bearings. The machine punches a total of 26 square holes and four slots in a steel channel section, stopping the channel in four punching positions. To keep the machine universal, each station slides on linear roller bearings and is connected hydraulically with a flexible hose. Horizontal C-frame punches float in postion under spring pressure, to allow for slight warpage in the channels. The end stops swing in and out of position automatically after each punching stroke. Stations are arranged as follows (see drawing below):

1-13	Vertical C-frame punch
14-15	Horizontal C-frame punch
16-19	End stop
20-23	Clamp

Operation sequence:

1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21.

Push channel up to the first end stop (station 16) Press button to clamp and punch sequentially Clamping (stations 20-23) Punching first two slotted holes in sides (stations 14-15) Automatic lifting of end stop and unclamping Push channel up to the second end stop (station 17) Press button to clamp and punch sequentially Clamping (stations 20-23) Punching second two slotted holes in sides (stations 14-15) Automatic lifting of end stop and unclamping Push channel up to the third end stop (station 18) Press button to clamp and punch sequentially Clamping (stations 20-23) Punching first 13 square holes in channel bottom (stations 1-13) Automatic lifting of end stop and unclamping Push channel up to the fourth end stop (station 19) Press button to clamp and punch sequentially Clamping (stations 20-23) Punch second 13 square holes in channel bottom (station 1-13) Automatic lifting of end stop and unclamping Push out finished channel

Vertical C-frame punch (stations 1-13) powered by a large Block Cylinder. A typical end stop is also shown.	C-frame slides horizontally (spring loaded) Horizontal C-frame punch (stations 14-15) powered by a large Block Cylinder.
Block Cylinder used to hold channels in position during punching operations (stations 20-23).

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Block Cylinders Used to Form Special Springs.

Block Cylinders

Block Cylinders are very useful for non-metal-removing operations, such as forming and bending. In this example, Block Cylinders are used in a fixture to form special springs.

Operation sequence:

1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12.

Cylinder A moves clamping block into position Cylinder B moves hook anvil into position Cylinder C partially rolls hook Cylinder D finishes rolling hook Cylinder E bends loop extension into position Cylinder F supports loop extension from below Cylinder G bends angle in loop extension Cylinder H supports loop from below Cylinder J partially rolls loop Cylinder H and J retract Cylinder L finishes rolling loop All cylinders retract

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