GB2000455A - Chuck actuating piston and cylinder device. - Google Patents

Chuck actuating piston and cylinder device.

Info

Publication number
GB2000455A
GB2000455A GB7827129A GB7827129A GB2000455A GB 2000455 A GB2000455 A GB 2000455A GB 7827129 A GB7827129 A GB 7827129A GB 7827129 A GB7827129 A GB 7827129A GB 2000455 A GB2000455 A GB 2000455A
Authority
GB
United Kingdom
Prior art keywords
cylinder
piston rod
actuating piston
chuck actuating
valve assembly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB7827129A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BRONZINO P
BRONZINO W
Original Assignee
BRONZINO P
BRONZINO W
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to IT6850377A priority Critical patent/IT1082779B/en
Application filed by BRONZINO P, BRONZINO W filed Critical BRONZINO P
Publication of GB2000455A publication Critical patent/GB2000455A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B31/00Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02Chucks
    • B23B31/24Chucks characterised by features relating primarily to remote control of the gripping means
    • B23B31/30Chucks characterised by features relating primarily to remote control of the gripping means using fluid-pressure means in the chuck
    • B23B31/302Hydraulic equipment, e.g. pistons, valves, rotary joints

Abstract

A rotatable fluid-actuated piston and cylinder device for control of a self-centering chuck. A safety valve assembly (27) is received in an axial hollow in the piston rod (16). The valve assembly comprises valve closure members (28,29) arranged coaxially with the piston rod (16) and movable between closed and open positions parallel to the longitudinal axis of rotation of the piston rod, thereby eliminating the adverse effects of centrifugal force on the valve action. <IMAGE>
GB7827129A 1977-06-29 1978-06-16 Chuck actuating piston and cylinder device. Withdrawn GB2000455A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT6850377A IT1082779B (en) 1977-06-29 1977-06-29 Improvement to fluid dynamic rotating cylinders particularly for the control of self-centering spindles

Publications (1)

Publication Number Publication Date
GB2000455A true GB2000455A (en) 1979-01-10

Family

ID=11309620

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7827129A Withdrawn GB2000455A (en) 1977-06-29 1978-06-16 Chuck actuating piston and cylinder device.

Country Status (4)

Country Link
DE (1) DE2828609A1 (en)
FR (1) FR2396192A1 (en)
GB (1) GB2000455A (en)
IT (1) IT1082779B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2499195A1 (en) * 1981-01-31 1982-08-06 Roehm Guenter H Pressure lines for machine tool clamping mechanism - comprise side channels in connecting rod connected to check valves in piston

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3141349C2 (en) * 1981-10-17 1985-06-13 Paul Forkardt Gmbh & Co Kg, 4000 Duesseldorf, De

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2499195A1 (en) * 1981-01-31 1982-08-06 Roehm Guenter H Pressure lines for machine tool clamping mechanism - comprise side channels in connecting rod connected to check valves in piston

Also Published As

Publication number Publication date
IT1082779B (en) 1985-05-21
DE2828609A1 (en) 1979-02-08
FR2396192A1 (en) 1979-01-26

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)