Showing papers on "Gear shaping published in 1994"

Centre floating adapter socket

Abstract: The utility model relates to a centre floating chuck comprising a chuck body and a three-jaw The three-jaw in the chuck body can rotate around a positioning pin; a center is slidingly arranged in the front part of the chuck body; a draw rod is arranged in the chuck body; upper and lower floating bodies are sheathed on the draw rod; a spring is arranged in the chuck body to cause the three-jaw and the lower floating body to keep conical surface contact The utility model can reduce positioning errors, improve machining precision, increase production efficiency, replace numerous nonstandard chucks to become standard series universal chucks, guaranteed the precision and carry out the turning, milling, grinding, gear shaping and gear hobbing processing to parts of axis class

Gear shaping device

Abstract: PURPOSE:To provide a gear shaping device having the capability of inexpensively and yet efficiently machining the tooth space of different size and shape. CONSTITUTION:A tool main spindle 26 is caused to rotate on the operation of a servo motor 62 for tool rotation via a reduction gear train 70 and a shaft 68. The rotation of a servo motor 82 for tool travel is converted to linear motion via a ball screw 84 and a nut 86 for transmission to the spindle 26, thereby causing the travel thereof along a rotational center line. In the case of the rough machining of tooth space on a gear element, a front milling cutter 34 is mounted on the spindle 26 and shifted, while rotating, to perform the rough machining of the tooth space. The finish machining of the space is undertaken after changing the cutter 34 to a disc broach. According to this construction, the travel distance of the front milling cutter 34 and the disc broach can be arbitrarily adjusted by controlling the rotation of the motor 82. Furthermore, a relief section can be formed, and a correction or the like can be made, regarding crowing and tooth trace.

Method and gear-shaped tool for manufacture of gear shaping and finishing tool

Abstract: PURPOSE: To execute optimum working on all occasions in the generated condition extending over the life of a precision-working tool by changing a pitch cylinder helix angle, a transverse module, and a base circle diameter, so as to change the originally existed profile shift only extremely little or not to change CONSTITUTION: The original number of teeth (z) and the original normal module mN are maintained, the pitch cylinder helix angle β, the transverse module MS, and the base circle diameter dg are changed, and in addition the originally existed profile shift is perfectly or almost not changed Hereby when the afterward generated tool is used, machine setting must be changed, but invariably maintained good machining result can be obtained extending over the entire lifetime of the tool

Apparatus for producing or machining gears

Abstract: An apparatus for producing or machining gears according to the principle of gear shaping has a work-holding table for a work gear, a shaping spindle with a cutting gear of considerable hardness fastened to it, a shaping drive setting the shaping spindle in a reciprocating movement if need be with superimposed rolling motion, and an infeed drive. To reduce the design cost and improve the vibration rigidity, provision is made for the cutting teeth of the cutting gear to lie over their entire extent in the cutting direction on a circular-cylindrical enveloping surface and to have one cutting edge each on the opposite end faces of the cutting gear, and for the cutting gear to be fed in by one chip width in each case during the shaping and return stroke of the shaping spindle. The conventional lifting of the cutting gear in gear shapers and the disadvantages associated with this are eliminated by these measures.