Apparatus for machining axle shafts

Apparatus for the in-place machining of spindles of self-propelled motor vehicles and trailer vehicles utilizing a spindle retained along an axle and comprising:

• (a) frame means including inner and outer end panels with axially extending bars secured therebetween, said inner end panel having a bore formed therein for receiving a spindle shaft therethrough when said apparatus is secured to a vehicle, centering and clamping means for releasable mounting of said frame means upon said vehicle and providing for portions of said frame means to be secured against the outer surface of said axle at the junction with the spindle and rendered fast therewith;
• (b) motor means secured to said frame means and having an output drive pulley, pulley means including a driven pulley and a driven pulley shaft, and an idler pulley means including an idler pulley and an idler pulley shaft, with said pulley shafts being mounted for rotation within said opposed end panels;
• (c) first endless drive means drivably coupling said output drive pulley to said driven pulley, and second endless drive means drivably coupling said driven pulley to said idler pulley, and with said driven pulley being fast upon said driven pulley shaft, and said idler pulley being fast upon said idler pulley shaft;
• (d) spindle centering means secured for axial movement within said outer panel member and including an elongated shaft threadedly engaged within said outer panel member and having a centering head at the inner face end thereof for releasable engagement with the outer edge of the spindle being machined;
• (e) carriage sleeve means journably mounted upon said driven shaft and including a carriage body, a hollow cylindrical housing secured to said body and with a plurality of radially disposed cutting heads coupled thereto in substantially equally arcuately spaced relationship, one with another, and arranged for rotation with said hollow cylindrical housing about said spindle, first drive gear means arranged for arcuate rotation with said driven shaft and for axial movement therealong, and second drive gear means secured to said hollow cylindrical housing for rotation with said hollow cylindrical housing about said spindle being machined;
• (f) lead screw shaft means extending between said outer panel means and journably coupled to each of said opposed panel members at opposed ends thereof, and having drive means drivably coupled to said idler shaft for rotation therewith, and drive means secured to said carriage body and engaged with said lead screw shaft means;
• and
• (g) means supportably coupling said carriage body to said lead screw and to said driven shaft.