Computer controlled machine tool
A machine tool is provided for allowing complex shapes to be machined on a workpiece at high speed. The system is computer (13) controlled and receives workpiece profile data which are converted into a succession of tool position signals during machining. Not all the digital signals are calculated a...
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| creator | WINTERBOTTOM ROBERT J. H EDWARDS WALTER G |
| description | A machine tool is provided for allowing complex shapes to be machined on a workpiece at high speed. The system is computer (13) controlled and receives workpiece profile data which are converted into a succession of tool position signals during machining. Not all the digital signals are calculated at one time, a number of future digital signals are calculated during a succession of time intervals. Further, for symmetrical profiles, data defining only one symmetrical portion is fed to the computer (13) which then produces digital signals for the whole profile. In each time interval, a tool position signal is outputted which is of a constant amplitude corresponding to the required tol position and which is fed to a signal processor (19) where it is converted into a signal which is used to drive a linear motor (23). Proportional and differential feedback (24, 25) are provided from the motor (23) for feedback control. |
| format | Patent |
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The system is computer (13) controlled and receives workpiece profile data which are converted into a succession of tool position signals during machining. Not all the digital signals are calculated at one time, a number of future digital signals are calculated during a succession of time intervals. Further, for symmetrical profiles, data defining only one symmetrical portion is fed to the computer (13) which then produces digital signals for the whole profile. In each time interval, a tool position signal is outputted which is of a constant amplitude corresponding to the required tol position and which is fed to a signal processor (19) where it is converted into a signal which is used to drive a linear motor (23). Proportional and differential feedback (24, 25) are provided from the motor (23) for feedback control.</description><edition>4</edition><language>eng</language><subject>COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT ; CONTROL OR REGULATING SYSTEMS IN GENERAL ; CONTROLLING ; DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING ; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS ; MACHINE TOOLS ; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS ; METAL-WORKING NOT OTHERWISE PROVIDED FOR ; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS ; PERFORMING OPERATIONS ; PHYSICS ; REGULATING ; TRANSPORTING</subject><creationdate>1987</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19870609&DB=EPODOC&CC=US&NR=4672550A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,778,883,25551,76302</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19870609&DB=EPODOC&CC=US&NR=4672550A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>WINTERBOTTOM; ROBERT J. H</creatorcontrib><creatorcontrib>EDWARDS; WALTER G</creatorcontrib><title>Computer controlled machine tool</title><description>A machine tool is provided for allowing complex shapes to be machined on a workpiece at high speed. The system is computer (13) controlled and receives workpiece profile data which are converted into a succession of tool position signals during machining. Not all the digital signals are calculated at one time, a number of future digital signals are calculated during a succession of time intervals. Further, for symmetrical profiles, data defining only one symmetrical portion is fed to the computer (13) which then produces digital signals for the whole profile. In each time interval, a tool position signal is outputted which is of a constant amplitude corresponding to the required tol position and which is fed to a signal processor (19) where it is converted into a signal which is used to drive a linear motor (23). 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H</creator><creator>EDWARDS; WALTER G</creator><scope>EVB</scope></search><sort><creationdate>19870609</creationdate><title>Computer controlled machine tool</title><author>WINTERBOTTOM; ROBERT J. H ; EDWARDS; WALTER G</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US4672550A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1987</creationdate><topic>COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT</topic><topic>CONTROL OR REGULATING SYSTEMS IN GENERAL</topic><topic>CONTROLLING</topic><topic>DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING</topic><topic>FUNCTIONAL ELEMENTS OF SUCH SYSTEMS</topic><topic>MACHINE TOOLS</topic><topic>MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS</topic><topic>METAL-WORKING NOT OTHERWISE PROVIDED FOR</topic><topic>MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS</topic><topic>PERFORMING OPERATIONS</topic><topic>PHYSICS</topic><topic>REGULATING</topic><topic>TRANSPORTING</topic><toplevel>online_resources</toplevel><creatorcontrib>WINTERBOTTOM; ROBERT J. H</creatorcontrib><creatorcontrib>EDWARDS; WALTER G</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>WINTERBOTTOM; ROBERT J. H</au><au>EDWARDS; WALTER G</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Computer controlled machine tool</title><date>1987-06-09</date><risdate>1987</risdate><abstract>A machine tool is provided for allowing complex shapes to be machined on a workpiece at high speed. The system is computer (13) controlled and receives workpiece profile data which are converted into a succession of tool position signals during machining. Not all the digital signals are calculated at one time, a number of future digital signals are calculated during a succession of time intervals. Further, for symmetrical profiles, data defining only one symmetrical portion is fed to the computer (13) which then produces digital signals for the whole profile. In each time interval, a tool position signal is outputted which is of a constant amplitude corresponding to the required tol position and which is fed to a signal processor (19) where it is converted into a signal which is used to drive a linear motor (23). Proportional and differential feedback (24, 25) are provided from the motor (23) for feedback control.</abstract><edition>4</edition><oa>free_for_read</oa></addata></record> |
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| subjects | COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROLLING DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING FUNCTIONAL ELEMENTS OF SUCH SYSTEMS MACHINE TOOLS MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS METAL-WORKING NOT OTHERWISE PROVIDED FOR MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS PERFORMING OPERATIONS PHYSICS REGULATING TRANSPORTING |
| title | Computer controlled machine tool |
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