Patent ID: 9205472
Filing Date: 2015-12-08
Classification: B21B,B21H,B23P,B24B

Abstract:
1. A machine tool for deep rolling a plurality of individual lengthwise sections of a wheelset shaft of a rail vehicle wheelset, the machine tool comprising: first and second deep rolling tool sets for machining the wheelset shaft, each tool set moveable in the x, y and z directions of the machine tool; wherein the first and second deep rolling tools are arranged at opposite lengthwise ends of the wheelset shaft and are operable to work towards each other in the axial z direction of the machine tool towards a longitudinal centerline of the wheelset shaft; wherein each of the first and second deep rolling tool sets comprises three pairs of work rollers; wherein each pair of work rollers is configured for deep rolling at least one of the lengthwise sections of the wheelset shaft; wherein a first pair of work rollers is configured for deep rolling first and second lengthwise sections of the wheelset shaft; wherein a second pair of work rollers is configured for deep rolling a third lengthwise section of the wheelset shaft; and wherein a third pair of work rollers is configured for deep rolling a fourth lengthwise section of the wheelset shaft extending between the third lengthwise section and at least the longitudinal centerline of the wheelset shaft; and wherein one work roller of the first pair of work rollers and one work roller of the second pair of work rollers are arranged together in a first housing with the work roller of the second pair of work rollers arranged vertically above the work roller of the first pair of work rollers in the y direction and one work roller of the third pair of work rollers is arranged in a second housing.