FR2443901A1 - Digitally controlled expansible grinding tool - uses program controlled hydraulic jack to compensate for wear pressure and torque - Google Patents

Digitally controlled expansible grinding tool - uses program controlled hydraulic jack to compensate for wear pressure and torque

Info

Publication number
FR2443901A1
FR2443901A1 FR7835720A FR7835720A FR2443901A1 FR 2443901 A1 FR2443901 A1 FR 2443901A1 FR 7835720 A FR7835720 A FR 7835720A FR 7835720 A FR7835720 A FR 7835720A FR 2443901 A1 FR2443901 A1 FR 2443901A1
Authority
FR
France
Prior art keywords
controlled
jack
torque
grinding tool
compensate
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.)
Granted
Application number
FR7835720A
Other languages
French (fr)
Other versions
FR2443901B1 (en
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.)
Automobiles Citroen SA
Original Assignee
Automobiles Citroen SA
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
Application filed by Automobiles Citroen SA filed Critical Automobiles Citroen SA
Priority to FR7835720A priority Critical patent/FR2443901A1/en
Publication of FR2443901A1 publication Critical patent/FR2443901A1/en
Application granted granted Critical
Publication of FR2443901B1 publication Critical patent/FR2443901B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B33/00—Honing machines or devices; Accessories therefor
    • B24B33/02—Honing machines or devices; Accessories therefor designed for working internal surfaces of revolution, e.g. of cylindrical or conical shapes

Abstract

The expansion of a conical grinding tool is controlled by a hydraulic jack. The jack is operated by a digital electronic system which programs a step motor to move a detector to which the jack is slaved. The piston (15) of the jack (16) is controlled from a hydraulic supply via a servo-control valve (26). This is controlled from a servo system where the demanded input (36) is compared (35) with the output of a position sensor (23) attached to a slide element (24) on a screw (20) connected via an arm (22) to the piston shaft. A step motor (18) drives the screw element from an amplifier (30) connected to a digital controller (31), which provides a programmed sequence of operations. This provides compensation (34) for wear as well as operating pressure (33a) and torque (33).
FR7835720A 1978-12-13 1978-12-13 Digitally controlled expansible grinding tool - uses program controlled hydraulic jack to compensate for wear pressure and torque Granted FR2443901A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7835720A FR2443901A1 (en) 1978-12-13 1978-12-13 Digitally controlled expansible grinding tool - uses program controlled hydraulic jack to compensate for wear pressure and torque

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7835720A FR2443901A1 (en) 1978-12-13 1978-12-13 Digitally controlled expansible grinding tool - uses program controlled hydraulic jack to compensate for wear pressure and torque

Publications (2)

Publication Number Publication Date
FR2443901A1 true FR2443901A1 (en) 1980-07-11
FR2443901B1 FR2443901B1 (en) 1981-01-16

Family

ID=9216311

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7835720A Granted FR2443901A1 (en) 1978-12-13 1978-12-13 Digitally controlled expansible grinding tool - uses program controlled hydraulic jack to compensate for wear pressure and torque

Country Status (1)

Country Link
FR (1) FR2443901A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0063983A1 (en) * 1981-04-16 1982-11-03 Automobiles Citroen Honing machine
FR2521896A1 (en) * 1982-02-24 1983-08-26 Ex Cell O Corp SINGLE PASS CALIBRATION TOOL AND WEAR COMPENSATION MACHINE
FR2654968A1 (en) * 1989-11-30 1991-05-31 Procedes Machines Speciales BORE EXPANSION LAPPING MACHINE.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3324602A (en) * 1964-08-03 1967-06-13 Nat Automatic Tool Co Hydraulic honing machine
DE2604602A1 (en) * 1976-02-06 1977-08-25 Beukenberg Maschf HONING DEVICE
DE2619741A1 (en) * 1976-05-05 1977-11-17 Gehring Gmbh Maschf FEED DEVICE FOR A CUTTING TOOL FOR MACHINING WORKPIECE HOLES, IN PARTICULAR A HONING TOOL
FR2398577A1 (en) * 1977-07-29 1979-02-23 Citroen Sa MECHANICALLY CONTROLLED LAPPING HEAD

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3324602A (en) * 1964-08-03 1967-06-13 Nat Automatic Tool Co Hydraulic honing machine
DE2604602A1 (en) * 1976-02-06 1977-08-25 Beukenberg Maschf HONING DEVICE
DE2619741A1 (en) * 1976-05-05 1977-11-17 Gehring Gmbh Maschf FEED DEVICE FOR A CUTTING TOOL FOR MACHINING WORKPIECE HOLES, IN PARTICULAR A HONING TOOL
FR2398577A1 (en) * 1977-07-29 1979-02-23 Citroen Sa MECHANICALLY CONTROLLED LAPPING HEAD

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0063983A1 (en) * 1981-04-16 1982-11-03 Automobiles Citroen Honing machine
US4516359A (en) * 1981-04-16 1985-05-14 S.A. Automobiles Citroen Grinding machine
FR2521896A1 (en) * 1982-02-24 1983-08-26 Ex Cell O Corp SINGLE PASS CALIBRATION TOOL AND WEAR COMPENSATION MACHINE
FR2654968A1 (en) * 1989-11-30 1991-05-31 Procedes Machines Speciales BORE EXPANSION LAPPING MACHINE.
EP0430817A1 (en) * 1989-11-30 1991-06-05 Societe Procedes Machines Speciales S.P.M.S. Expansion lapping machine for borings

Also Published As

Publication number Publication date
FR2443901B1 (en) 1981-01-16

Similar Documents

Publication Publication Date Title
US4669359A (en) Positioning system
ATE16570T1 (en) DEVICE FOR AUTOMATIC CONTROL OF A MILLING ROLLER WITH A PRODUCT FEED REGULATION.
AU531130B2 (en) A hydraulically operated clutch
GB1083943A (en) Improvements in control system
KR900005550B1 (en) Servo control system
SE8702833D0 (en) SELF-REGULATED PRESSURE CONTROL VALVE
FR2443901A1 (en) Digitally controlled expansible grinding tool - uses program controlled hydraulic jack to compensate for wear pressure and torque
SE7903593L (en) SERVO VALVE UNIT
EP0146633A4 (en) Numerical control system.
EP0022104A3 (en) A device for limiting the power output of a hydraulic assembly
GB1201821A (en) Improvements in or relating to machine tool apparatus
JPS55135729A (en) Pressure endurance running machine of electrohydraulic servo type
JPS57159252A (en) Controlling method for molten metal level of continuous casting mold
EP0715100A3 (en) Oil pressure controller of automatic transmission
JPS57121431A (en) Tilting table driving force compensating controller
SU1818418A1 (en) Device for regulating position of structures
JPH0673792B2 (en) Feeder
SU941701A1 (en) Electrohydraulic servo drive
GB1428126A (en) Control apparatus
GB903929A (en) Improvements in or relating to hydraulic machines
SU1145440A1 (en) Positioh electric drive for manufacturing mechanism
GB1225758A (en)
SE8600897L (en) HYDRAULIC SHOCK
RU34658U1 (en) Microcontroller Electro-Hydraulic Follower Drive
EP0251603A3 (en) Hydraulic actuator controlled by servovalve

Legal Events

Date Code Title Description
CA Change of address
DL Decision of the director general to leave to make available licences of right
ST Notification of lapse