A machining device for duplex gear of high-precision reducer for robot includes a laser welding device, a laser rotary support, a rotary mechanism and a rotary platform, the rotary mechanism being installed with a reducer body, wherein a center of a central gear is fixedly connected with a rotating shaft; sets of duplex gears are evenly disposed around the central gear; the gear of each set of duplex gear which is connected with the central gear are connected to an output gear ring from outside; a fixed gear ring is disposed above the output gear ring; a rotating frame is disposed at ends, close to the top of the reducer, of rotating shafts of the sets of duplex gears and the rotating shaft of the central gear.

A machining device for duplex gear of high-precision reducer for robot includes a laser welding device, a laser rotary support, a rotary mechanism and a rotary platform, the rotary mechanism being installed with a reducer body, wherein a center of a central gear is fixedly connected with a rotating shaft; sets of duplex gears are evenly disposed around the central gear; the gear of each set of duplex gear which is connected with the central gear are connected to an output gear ring from outside; a fixed gear ring is disposed above the output gear ring; a rotating frame is disposed at ends, close to the top of the reducer, of rotating shafts of the sets of duplex gears and the rotating shaft of the central gear.

A planetary carrier includes a plurality of plate portions, and column portions connecting the plurality of plate portions. The column portions each have an outer circumferential surface, an inner circumferential surface, and sidewall surfaces. The sidewall surfaces are each formed in a circular arc shape and the circular arc shape has a center on an outer circumferential side in a cross section perpendicular to a shaft of the planetary carrier. An angle formed between the outer circumferential and each of the sidewall surfaces is an obtuse angle and an angle formed between the inner circumferential and each of the sidewall surfaces is an acute angle. The plurality of plate portions and the column portions are integrally formed as one sintered body.

A planetary carrier includes a plurality of plate portions, and column portions connecting the plurality of plate portions. The column portions each have an outer circumferential surface, an inner circumferential surface, and sidewall surfaces. The sidewall surfaces are each formed in a circular arc shape and the circular arc shape has a center on an outer circumferential side in a cross section perpendicular to a shaft of the planetary carrier. An angle formed between the outer circumferential and each of the sidewall surfaces is an obtuse angle and an angle formed between the inner circumferential and each of the sidewall surfaces is an acute angle. The plurality of plate portions and the column portions are integrally formed as one sintered body.

The present invention relates to a method of hardening slides of a perforating press comprising providing a steel beam; hardening of the steel beam in a vacuum furnace; tempering the steel beam twice; first straightening of the steel beam at a temperature of 20° C. ± 10° C.; milling of an at least partially continuous sawtooth profile, along a longitudinal direction of the steel beam, on a first side of the steel beam; wherein, after milling the at least partially continuous sawtooth profile on the first side of the steel beam, a second side of the steel beam, lying opposite the first side, is hardened by means of induction currents, after which the steel beam is again tempered twice and after which the steel beam is straightened a second time at a temperature of 20° C. ± 10° C. The invention also relates to a slide for a perforating press hardened according to the method.

The present invention relates to a method of hardening slides of a perforating press comprising providing a steel beam; hardening of the steel beam in a vacuum furnace; tempering the steel beam twice; first straightening of the steel beam at a temperature of 20° C. ± 10° C.; milling of an at least partially continuous sawtooth profile, along a longitudinal direction of the steel beam, on a first side of the steel beam; wherein, after milling the at least partially continuous sawtooth profile on the first side of the steel beam, a second side of the steel beam, lying opposite the first side, is hardened by means of induction currents, after which the steel beam is again tempered twice and after which the steel beam is straightened a second time at a temperature of 20° C. ± 10° C. The invention also relates to a slide for a perforating press hardened according to the method.

A hobbing or gear cutting machine uses a rotary tool to rotate a cutting tool around a central axis of the cutting tool. The cutting tool has zero lead cutters, that is, the cutting tool is non-helical. A head holds the rotary tool and moves the cutting tool longitudinally along the central axis of the cutting tool. A workpiece holder holds a workpiece to be machined into a gear proximate the cutting tool. The workpiece holder selectively rotates the workpiece in conjunction with the longitudinal movement of the cutting tool via the head to cut both straight and helical gears from the workpiece.

A hobbing or gear cutting machine uses a rotary tool to rotate a cutting tool around a central axis of the cutting tool. The cutting tool has zero lead cutters, that is, the cutting tool is non-helical. A head holds the rotary tool and moves the cutting tool longitudinally along the central axis of the cutting tool. A workpiece holder holds a workpiece to be machined into a gear proximate the cutting tool. The workpiece holder selectively rotates the workpiece in conjunction with the longitudinal movement of the cutting tool via the head to cut both straight and helical gears from the workpiece.

A tooth surface shape design support device for supporting design of a tooth surface shape of a gear includes a principal component shape data acquisition unit configured to acquire a plurality of principal component shape data obtained by performing principal component analysis on a tooth surface shape sample data group including a plurality of tooth surface shape sample data indicating samples of the tooth surface shape, and a tooth surface shape evaluation unit configured to evaluate a tooth surface shape defined by using the plurality of principal component shape data acquired by the principal component shape data acquisition unit.

A tooth surface shape design support device for supporting design of a tooth surface shape of a gear includes a principal component shape data acquisition unit configured to acquire a plurality of principal component shape data obtained by performing principal component analysis on a tooth surface shape sample data group including a plurality of tooth surface shape sample data indicating samples of the tooth surface shape, and a tooth surface shape evaluation unit configured to evaluate a tooth surface shape defined by using the plurality of principal component shape data acquired by the principal component shape data acquisition unit.