Title:
LATHE HAVING PARALLEL TWO SPINDLES
Document Type and Number:
Japanese Patent JP2673632
Kind Code:
B2
Abstract:
PURPOSE: To provide a lathe having parallel two spindles to enable compound works including Y spindle work of the first and the second processes and to improve working efficiency in comparison with conventional one.
CONSTITUTION: A headstock 2 having two spindles which are standing lengthwise is fixed at the center of a bed 1. On both sides of a vertical plane a-a running through respective centers of two spindles, Z spindle guides 5A and 5B having α° up-grade to the vertical plane a-a are provided. Compound works are made possible by providing saddles 6A and 6B to be capable of being movably positioned on the Z spindle guides 5A and 5B, by providing intermediate rests 7A and 7B to be capable of being movably positioned on the first X spindle guide having α° up-grade on the saddles 6A and 6B, by providing tool rests 8A and 8B to be capable of being movably positioned on the second X spindle guide where the intermediate rests 7A and 7B have β° down-grade 7a to the vertical plane a-a, and by providing turrets 9A and 9B capable of swivel driving of a rotary tool TA or a fixed tool TB at three cutting positions on the tool rests 8A and 8B.
Inventors:
Nobuyuki Takagi
Application Number:
JP14622692A
Publication Date:
November 05, 1997
Filing Date:
May 13, 1992
Export Citation:
Assignee:
Okuma Corporation
International Classes:
B23B3/16; B23B3/30; B23B11/00; B23Q39/00; (IPC1-7): B23B3/30; B23B3/16
Domestic Patent References:
| JP4122501A | ||||
| JP613601B2 | ||||
| JP5940961Y2 |
Attorney, Agent or Firm:
Yumi Kato