| 摘要 |
620,109. Gear-cutting. GLEASON WORKS. Jan. 6, 1947, No. 431. Convention date, March 23, 1944. [Class 83 (iii)] In a gear-cutting machine having a tool-slide reciprocable on a support to move 'the tool longitudinally of the teeth of the gear, two guide members, having relatively inclined guide surfaces, are secured to one of said parts so as to be spaced apart longitudinally with respect to the direction of slide movement, and a pair of rollers mounted on the other of said parts engages the guides during the reciprocation of the slide in order to impart a longitudinally-curved side surface to the gear-tooth being cut. In a machine of the type described in Specification 464,183, two tool-slides 12, 121 are carried on rams 13. Carried on each slide 12 are two guide members 25 which are slotted to provide parallel guide surfaces engaged by rollers 31, 32 mounted on the ram 13. The inclination of each slot is adjusted by means of a scale on an arm 35 integral with the member 25 and clamped by a bolt 38. The slides are reciprocated by an oscillating member 20, and the tools T, T<SP>1</SP> are adjustable along T-slots 16, 16<SP>1</SP>. The machine may be used for cutting straight-bevel gears, bevel gears with offset or skew teeth and spur gears, either with or without generating roll in each case. |
