Machine tool

• US 5,896,794 A
• Filed: 06/05/1997
• Issued: 04/27/1999
• Est. Priority Date: 06/05/1996
• Status: Expired due to Term

• Current Assignee: Index-Werke GmbH & Company KG HAHN & Tessky (Eugen Und Irmgard Hahn Stiftung)
• Original Assignee: Index-Werke GmbH & Company KG HAHN & Tessky (Eugen Und Irmgard Hahn Stiftung)
• Inventors: Trautmann, Guenther Heinrich
• Primary Examiner(s): Pitts, Andrea L.
• Assistant Examiner(s): TSAI, HENRY
• Application Number:
  US08/869,503
• Time in Patent Office: 691 Days
• Field of Search: 82/129, 82/123, 82/124, 82/126, 82/127
• US Class Current: 82/129
• CPC Class Codes: B23Q 1/0009 Energy-transferring means or control lines for movable machine parts; Control panels or boxes; Control parts control handles for driving or feeding mechanisms B23Q5/54
• CPC Class Codes: B23Q 39/044 having at least one tool station cooperating with each work holder, e.g. multi-spindle lathes
• CPC Class Codes: Y10T 82/2518 Bar feeder
• CPC Class Codes: Y10T 82/2521 Bar feeder
• CPC Class Codes: Y10T 82/2524 Multiple

Abstract

In order to improve a machine tool comprising a machine frame, a drum arranged on the machine frame for rotation about a drum axis and having a plurality of machining devices for tools held on it and drives associated with the machining devices and rotatable with the drum, a stationary control and supply unit for the drives and a line system connected, on the one hand, to the drives rotatable with the drum and, on the other hand, to the control and supply unit, this line system being free from interruptions and rotary connections and deformable as a result of rotation of the spindle drum, such that the line system can be guided in as space-saving a manner as possible it is suggested that the line system have a long line system section extending along a system axis and rotatable about the system axis.

Claims

1. A machine tool comprising:

a machine frame,

a drum arranged on the machine frame for rotation about a drum axis and having a plurality of machining devices for tools held thereon and drives associated with the machining devices and rotatable with the drum,

a stationary control and supply unit for the drives, and

a line system connected to the drives rotatable with the drum and to the control and supply unit,

said line system being free from interruptions and rotary connections and deformable as a result of rotation of the drum, and having a long line system section extending along a system axis and rotatable about the system axis.

2. A machine tool as defined in claim 1, wherein the long line system section is designed to be rotatable exclusively about the system axis.

3. A machine tool as defined in claim 1, wherein the line system section has long lines extending essentially parallel to one another in a non-rotated basic position.

4. A machine tool as defined in claim 1, wherein the line system section is rotatable through a maximum of 180°

in opposite directions proceeding from its non-rotated basic position.

5. A machine tool as defined in claim 1, wherein the system axis extends coaxially to the drum axis.

6. A machine tool as defined in claim 1, wherein the long line system section extends in a direction away from a working space.

7. A machine tool as defined in claim 1, wherein the line system section is held extended on a system guide means having a first end holding means rotating with the drum and a second end holding means non-rotatable about the system axis.

8. A machine tool as defined in claim 7, wherein the first and second end holding means are movable relative to one another with respect to their spacing in the direction of the system axis.

9. A machine tool as defined in claim 1, wherein a line section adjoins the long line system section and compensates for any longitudinal movement of its end in the direction of the system axis.

10. A machine tool as defined in claim 9, wherein individual lines of the line section have a bent shape that is variable as a result of the longitudinal movement of the end in the direction of the system axis.

11. A machine tool as defined in claim 10, wherein the bent shape of the lines is a U shape.

12. A machine tool as defined in claim 11, wherein arms of the U shape extend approximately parallel to the system axis.

13. A machine tool as defined in claim 11, wherein the U shape is located in a plane extending through the system axis.

14. A machine tool as defined in claim 7, wherein intermediate holding means are arranged between the first and second end holding means.

15. A machine tool as defined in claim 14, wherein the intermediate holding means are rotatably arranged on a support of the system guide means.

16. A machine tool as defined in claim 15, wherein the support bears at least one of the end holding means and an intermediate holding means.

17. A machine tool as defined in claim 14, wherein the intermediate holding means are mounted on the support so as to be movable in the direction of the system axis and rotatable about this axis.

18. A machine tool as defined in claim 17, wherein the support bears at least one of the end holding means and an intermediate holding means.

19. A machine tool as defined in claim 15, wherein the support is designed as a support tube.

20. A machine tool as defined in claim 15, wherein the support has guide means for stock.

21. A machine tool as defined in claim 20, wherein the support has guide means for the stock arranged coaxially to the individual machining devices.

22. A machine tool as defined in claim 15, wherein the support is non-rotatably connected to the drum.