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1. WO1983003490 - ROTATING TOOL WEAR MONITORING APPARATUS

Publication Number WO/1983/003490
Publication Date 13.10.1983
International Application No. PCT/US1982/000988
International Filing Date 21.07.1982
IPC
B23Q 17/09 2006.1
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
17Arrangements for indicating or measuring on machine tools
09for indicating or measuring cutting pressure or cutting-tool condition, e.g. cutting ability, load on tool
B23Q 17/12 2006.1
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
17Arrangements for indicating or measuring on machine tools
12for indicating or measuring vibration
G01N 3/58 2006.1
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
3Investigating strength properties of solid materials by application of mechanical stress
58Investigating machinability by cutting tools; Investigating the cutting ability of tools
G05B 19/4065 2006.1
GPHYSICS
05CONTROLLING; REGULATING
BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
19Programme-control systems
02electric
18Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
406characterised by monitoring or safety
4065Monitoring tool breakage, life or condition
CPC
B23Q 17/0947
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
17Arrangements for ; observing,; indicating or measuring on machine tools
09for indicating or measuring cutting pressure or ; for determining; cutting-tool condition, e.g. cutting ability, load on tool
0904before or after machining
0919Arrangements for measuring or adjusting cutting-tool geometry in presetting devices
0947Monitoring devices for measuring cutting angles
B23Q 17/12
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
17Arrangements for ; observing,; indicating or measuring on machine tools
12for indicating or measuring vibration
G01N 2203/021
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
2203Investigating strength properties of solid materials by application of mechanical stress
02Details not specific for a particular testing method
0202Control of the test
021Treatment of the signal; Calibration
G01N 2203/0623
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
2203Investigating strength properties of solid materials by application of mechanical stress
02Details not specific for a particular testing method
06Indicating or recording means; Sensing means
0617Electrical or magnetic indicating, recording or sensing means
0623using piezo-electric gauges
G01N 3/58
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
3Investigating strength properties of solid materials by application of mechanical stress
58Investigating machinability by cutting tools; Investigating the cutting ability of tools
G05B 19/4065
GPHYSICS
05CONTROLLING; REGULATING
BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
19Programme-control systems
02electric
18Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
406characterised by monitoring or safety
4065Monitoring tool breakage, life or condition
Applicants
  • UNITED STATES OF AMERICA represented by SECRETARY [US]/[US]
Inventors
  • YEE, Kenneth, Wai
  • BLOMQUIST, Donald, Sigurd
Agents
  • SEARS, Mary, Helen
Priority Data
364,94402.04.1982US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) ROTATING TOOL WEAR MONITORING APPARATUS
(FR) APPAREIL DE CONTROLE DE L'USURE D'UN OUTIL ROTATIF
Abstract
(EN) A system for predicting when the failure of a rotating machine tool (14) or part is imminent or when a tool is worn. The system includes a transducer (10) for producing an output related to the workpiece vibrations caused by the machine tool and an analog comparator (18) which compares this output with a threshold signal related to the normal operation of the tool and established by a microcomputer (20) which determines whether further signals which exceed the threshold are produced during each of a predetermined number of subsequent time intervals related to the rotational speed of the tool. If so, a "failure" signal is produced which may be used, for example, to cause retraction of the tool.
(FR) Un système permet de prévoir la défaillance imminente d'une machine-outil rotative (14) ou d'une partie rotative, ou l'état d'usure d'un outil. Le système comprend un transducteur (10) pour produire une sortie correspondant aux vibrations de la pièce à usiner provoquées par la machine outil, et un comparateur analogique (18) qui compare cette sortie avec un signal de seuil correspondant à l'opération normale de l'outil et établi par un microordinateur (20) qui détermine si des signaux supplémentaires dépassant le seuil sont produits pendant chaque intervalle de temps d'une série prédéterminée d'intervalles consécutifs de temps correspondant à la vitesse de rotation de l'outil. Un signal de "défaillance" produit le cas échéant peut être utilisé, par exemple, pour entraîner le retrait de l'outil.
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