Driving or feeding mechanisms Control arrangements therefor

BPERFORMING OPERATIONS TRANSPORTING B23Machine tools B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS

B23Q5/00Driving or feeding mechanisms Control arrangements therefor

B23Q5/02Driving main working members B23Q5/027reciprocating members B23Q5/033driven essentially by fluid pressure B23Q5/04rotary shafts B23Q5/041Spindle-reversing devices B23Q5/043Accessories for spindle drives B23Q5/045Angle drives B23Q5/046Offset spindle drives B23Q5/048Speed-changing devices B23Q5/06driven essentially by fluid pressure or pneumatic power B23Q5/08electrically controlled B23Q5/10driven essentially by electrical means B23Q5/12Mechanical drives with means for varying the speed ratio B23Q5/14step-by-step B23Q5/142mechanically-operated B23Q5/145fluid-operated B23Q5/147electrically-operated B23Q5/16infinitely-variable B23Q5/162mechanically-operated B23Q5/165fluid-operated B23Q5/167electrically-operated B23Q5/18Devices for preselecting speed of working-spindle B23Q5/20Adjusting or stopping working-spindles in a predetermined position B23Q5/22Feeding members carrying tools or work B23Q5/225not mechanically connected to the main drive B23Q5/26Fluid-pressure drives B23Q5/261for spindles B23Q5/263with means to control the feed rate by controlling the fluid flow B23Q5/265this regulation depending upon the position of the tools or work B23Q5/266with means to control the feed rate by controlling the fluid flow B23Q5/268depending upon the position of the tool or work B23Q5/28Electric drives B23Q5/32Feeding working-spindles B23Q5/323cam-operated B23Q5/326screw-operated B23Q5/34Feeding other members supporting tools or work B23Q5/341cam-operated B23Q5/342Cam followers B23Q5/344Cams B23Q5/345Cam assembly B23Q5/347controlled in conjunction with tool or work indexing means B23Q5/348by means of clutches B23Q5/36in which a servomotor forms an essential element B23Q5/38feeding continuously B23Q5/385using a gear and rack mechanism or a friction wheel co-operating with a rail B23Q5/40by feed shaft B23Q5/402in which screw or nut can both be driven B23Q5/404Screw bearings therefor B23Q5/406with means for meshing screw and nut B23Q5/408Nut bearings therefor B23Q5/42Mechanism associated with headstock B23Q5/44Mechanism associated with the moving member B23Q5/46with variable speed ratio B23Q5/48by use of toothed gears B23Q5/50feeding step-by-step B23Q5/52Limiting feed movement B23Q5/54Arrangements or details not restricted to group B23Q5/02 or group B23Q5/22 respectively B23Q5/56Preventing backlash B23Q5/58Safety devices B23Q5/585Preventing the misuse of accessories