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Title:
INTERMITTENT FEED CONTROL DEVICE
Document Type and Number:
Japanese Patent JPS629810
Kind Code:
A
Abstract:

PURPOSE: To ensure the intermittent movement of a fluid pressure actuator by enabling the easy installation thereof on an existing circuit in such a way that an intensifying piston and a change-over valve for the reciprocating motion thereof are repeatedly actuated on a pressurized fluid, and the fluid is intermittently discharged from a load passage.

CONSTITUTION: When a solenoid changeover valve 37 has been turned to the right side, a cylinder 36 is controlled in respect of speed and moves to the right side, thereby causing a pressurized fluid for a circuit 41 to move a piston 2 to the left side, and flow into and fill an intensifying chamber 8. At this stage, a pressurized fluid in a pressure passage P flows into an application chamber 11 and a change-over valve body 3 is kept at the right side position. As soon as an operation member 30 has contacted a retaining member 31, a change-over valve body 4 moves to the left side, thereby changing over application chambers 11 and 12 for continuity to a discharge passage R and said passage P respectively, while a valve body 3 is made to move to the left, thereby changing over connecting passages 13 and 14 for continuity to said passages P and R respectively. Thereafter, the piston 2 moves to the right, thereby causing an increase in fluid pressure within the intensifying chamber 8, delivering the fluid from a load passage A to a circuit 42 for retreating the cylinder 36. As a result, the valve body 4 moves to the right, due to contact by a member 30 and causes the valve body 3 to restore the original position. In this way, the cylinder 36 repeats motion back and forth for intermittent machining feed.


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Inventors:
IWABUCHI NOBUHIRO
ISHIKAWA MASATO
Application Number:
JP14865985A
Publication Date:
January 17, 1987
Filing Date:
July 05, 1985
Export Citation:
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Assignee:
TOYOOKI KOGYO KK
International Classes:
B23B47/18; B23B47/20; B23Q5/26; B23Q5/50; F15B3/00; (IPC1-7): B23B47/18
Domestic Patent References:
JPS5810184A1983-01-20
JPS57189775A1982-11-22
JPS5160877A1976-05-27



 
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