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1. US5193949 - Arrangement for driving a rotary tool

Office
United States of America
Application Number 07838499
Application Date 19.02.1992
Publication Number 5193949
Publication Date 16.03.1993
Grant Number 5193949
Grant Date 16.03.1993
Publication Kind A
IPC
B23B 47/00
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
BTURNING; BORING
47Constructional features of components specially designed for boring or drilling machines; Accessories therefor
B23B 47/04
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
BTURNING; BORING
47Constructional features of components specially designed for boring or drilling machines; Accessories therefor
02Drives; Gearings
04for rotating the working-spindle
B23Q 1/26
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
QDETAILS, 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
1Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
25Movable or adjustable work or tool supports
26characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
B23Q 1/40
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
QDETAILS, 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
1Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
25Movable or adjustable work or tool supports
26characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
40using ball, roller or wheel arrangements
B23Q 5/00
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
QDETAILS, 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
5Driving or feeding mechanisms; Control arrangements therefor
B23Q 5/04
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
QDETAILS, 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
5Driving or feeding mechanisms; Control arrangements therefor
02Driving main working members
04rotary shafts, e.g. working-spindles
CPC
B23Q 5/04
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING
5Driving or feeding mechanisms; Control arrangements therefor
02Driving main working members
04rotary shafts, e.g. working-spindles
B23Q 1/40
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING
1Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
25Movable or adjustable work or tool supports
26characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
40using ball, roller or wheel arrangements
B23Q 5/00
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING
5Driving or feeding mechanisms; Control arrangements therefor
F16H 19/025
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
19Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
02for interconverting rotary ; or oscillating; motion and reciprocating motion
025comprising a friction shaft
H05K 3/0044
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
3Apparatus or processes for manufacturing printed circuits
0011Working of insulating substrates or insulating layers
0044Mechanical working of the substrate, e.g. drilling or punching
Y10S 408/704
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
408Cutting by use of rotating axially moving tool
704Drilling small holes
Applicants MARANTETTE WILLIAM F
JOHNSRUD ROGER
Inventors Marantette William F.
Johnsrud Roger
Agents Carr Richard F.
Gausewitz Richard L.
Rothenberg Allan
Priority Data 07660149 22.02.1991 US
Title
(EN) Arrangement for driving a rotary tool
Abstract
(EN)

An arrangement for driving a rotary tool is provided in which the tool shank is engaged and frictionally driven by the engagement of three or more drive rollers. Axial movement of the tool is accomplished by tilting the axes of the rollers as permitted by flexible portions of the shafts which drive the rollers. The tool is released by moving one roller away from the other two. A pressure foot is provided at the bottom of the assembly reciprocated by a cam arrangement to engage the workpiece when the tool is in operation. A position pick-off senses the axial position of the tool so that the tilt angle of the rollers can be controlled by a dual feedback path servo loop having an improved preconditioning circuit for its feedback position counter.