GB1410710A - Machine tool copying device - Google Patents

Machine tool copying device

Info

Publication number
GB1410710A
GB1410710A GB235273A GB235273A GB1410710A GB 1410710 A GB1410710 A GB 1410710A GB 235273 A GB235273 A GB 235273A GB 235273 A GB235273 A GB 235273A GB 1410710 A GB1410710 A GB 1410710A
Authority
GB
United Kingdom
Prior art keywords
stylus
circuit
tool head
plate
spindle
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.)
Expired
Application number
GB235273A
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.)
Industrie Pirelli SpA
Pirelli and C SpA
Original Assignee
Industrie Pirelli SpA
Pirelli SpA
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 Industrie Pirelli SpA, Pirelli SpA filed Critical Industrie Pirelli SpA
Publication of GB1410710A publication Critical patent/GB1410710A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q33/00—Methods for copying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q35/00—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually
    • B23Q35/04—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually using a feeler or the like travelling along the outline of the pattern, model or drawing; Feelers, patterns, or models therefor
    • B23Q35/08—Means for transforming movement of the feeler or the like into feed movement of tool or work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q35/00—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually
    • B23Q35/04—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually using a feeler or the like travelling along the outline of the pattern, model or drawing; Feelers, patterns, or models therefor
    • B23Q35/24—Feelers; Feeler units
    • B23Q35/26—Feelers; Feeler units designed for a physical contact with a pattern or a model
    • B23Q35/30—Feelers; Feeler units designed for a physical contact with a pattern or a model for control of an electrical or electro-hydraulic copying system
    • B23Q35/32—Feelers; Feeler units designed for a physical contact with a pattern or a model for control of an electrical or electro-hydraulic copying system in which the feeler makes and breaks an electrical contact or contacts, e.g. with brush-type tracers

Abstract

1410710 Mechanical switches INDUSTRIE PIRELLI SpA 17 Jan 1973 [18 Jan 1972] 2352/73 Heading H1N [Also in Division B3] A copying device for a milling machine comprises a template 4 fixed relative to the workpiece 1, and a sensor 5 arranged via a two part electrical circuit A, B, Fig. 3, to cause the movement of the tool head in the X, Y, directions to cut a profile 2, so that when the sensor is in engagement with the template the tool head is moved in one of the directions under the control of one part of the electrical circuit, and when they are not in engagement, the movement of the tool head in the other direction comes under the sole, or additional, control of the other part. Sensor 5, Fig. 2, comprises a disc-shaped stylus 6 carried on a spindle 7 mounted in a housing 8 by a spherical bearing 9. A spring- urged-plate 12 is located on the spindle by a ball 11 and the plate forms the moving contact of a switch, whose fixed contacts are formed by adjustable screws 18, 19. In operation, stylus 6, Fig. 4 is required to move from point P to point P1. Stylus 6 is pressed against the template on the Y axis so that spindle 7 oscillates around bearing 9 and plate 12 touches screw 18 and closes circuit A, Fig. 3. An electro-clutch 22 is energized and the tool head is moved a distance L1X along the X axis. At the end of this distance the stylus is not in contact with the template, spindle 7 oscillates and plate 12 moves into contact with screw 19, and the part B of the circuit is closed. A second clutch 23 is energized and the tool head 3 is moved a distance L1Y along the Y axis. This stepping operation is carried out until the stylus reaches point P1. In a modification, at the beginning of the operation part A of the circuit is short circuited, so that clutch 22 allows head 3 to move continuously along distance L1X, whereupon plate 12 contacts screw 19 which closes circuit B and actuates clutch 23. However unlike the first sequence at this stage, circuit A does not open since it is short circuited. The stylus moves along line (L2), Fig. 5 (not shown), resulting from simultaneous feeds L2X and L2Y. This sequence continues until the stylus reaches point (Q) whereupon part B of the circuit is short-circuited and part A is re-established. The sequence continues up to point P1. Capacitors or diodes 24, 25, and indicator lamps 26, 27, are placed in circuits A. B.
GB235273A 1972-01-18 1973-01-17 Machine tool copying device Expired GB1410710A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1948472A IT946665B (en) 1972-01-18 1972-01-18 COPYING DEVICE FOR MACHINE TOOL

Publications (1)

Publication Number Publication Date
GB1410710A true GB1410710A (en) 1975-10-22

Family

ID=11158409

Family Applications (1)

Application Number Title Priority Date Filing Date
GB235273A Expired GB1410710A (en) 1972-01-18 1973-01-17 Machine tool copying device

Country Status (2)

Country Link
GB (1) GB1410710A (en)
IT (1) IT946665B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2458791A1 (en) * 1979-06-13 1981-01-02 Seiv Automation NUMERICALLY CONTROLLED MEASURING DEVICE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2458791A1 (en) * 1979-06-13 1981-01-02 Seiv Automation NUMERICALLY CONTROLLED MEASURING DEVICE
EP0023549A1 (en) * 1979-06-13 1981-02-11 SOCIETE D'ETUDES INDUSTRIELLES DE VILLEJUIF, SEIV AUTOMATION Société anonyme dite: Numerically controlled measuring device for linear dimensions

Also Published As

Publication number Publication date
IT946665B (en) 1973-05-21

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees