GB307477A - Wheel trueing device for grinding or abrading machines - Google Patents

Abstract

307,477. Landis Tool Co., (Assignees of Ott, C. L.). March 10, 1928, [Convention date]. Turning.-A device for trueing two or more grinding-wheels of different diameters mounted on a common spindle consists of a base 11 mounted upon the carriage 10 of a grinding- machine, and having detachably mounted thereon a slide 12 carrying a plunger 13 adjustably secured thereon by a screw 25 and having an extension 14 carrying a dressing-tool 15. The plunger has therein a recess 29 having on one face a hardened pin 33, and a part 31 of the slide- 12 carrying a hardened pin 32 projects into the recess. A spring 42 in a bore 41 in the plunger engages the part 31 and urges the plunger towards the grinding-wheels 21, 22. In operation, the tool 15 is brought into contact with the wheel 21, contact, of the pins 32, 33 determining the position of the tool; the wheel 22 is subsequently trued with a gauge-block 34 between the pins 32, 33, the gauge-block being of a thickness equal to the difference, of the radii of the wheels 21, 22. The block consists of two wedge-shaped parts 35, 36 adjustably held together by screws, and held on the part 31 by the flanged head of a screw 38 engaging grooves in the block, and by a pin 39. By adjustment of the parts 35, 36, the thickness of the block may be adjusted to compensate for wear of the tool 15 due to the wheels 21, 22 being of different, hardness.