Metal working – Plural diverse manufacturing apparatus including means for... – Type of machine
Patent
1992-10-23
1994-10-04
Bilinsky, Z. R.
Metal working
Plural diverse manufacturing apparatus including means for...
Type of machine
279 20, 82900, 29569, 29DIG88, 408 61, 409136, B23P 2302, B23Q 1110
Patent
active
053513762
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
This invention relates to a machine tool for complex machining.
BACKGROUND ART
When a cylindrical workpiece is, for example, intended to be turned and thereafter drilled, the workpiece is first set in the chuck of a lathe for turning with a cutting tool engaging its circumference. Then the work piece is detached from the lathe and reset on a drilling machine for drilling.
In this procedure the workpiece must be detached from the lathe and reset on the drilling machine. It takes time to detach and reset the workpiece. It is hard to machine the workpiece with high accuracy.
DISCLOSURE OF INVENTION
An object of this invention is to provide a machine tool in which a workpiece once being set can be machined in various manners without seizure of tools.
A machine tool according to this invention includes a tool-holder for holding a tool; a spindle for detachably supporting the toolholder; a spindle support for rotatably supporting the spindle; drive means for driving the spindle supported on the spindle support; stop means for preventing the toolholder from rotating relative to the spindle support; and a cutting oil supply means for supplying a cutting oil to the tool via the stop means.
In a machine tool according to this invention the stop means includes a member for attaching the tool to the toolholder; a positioning member mounted on the spindle support; a stop member mounted on the member for preventing the toolholder from rotating in such a manner that the stop member engages the positioning member and fixes the toolholder relative to the spindle support when the toolholder is supported in the spindle.
In a machine tool according to this invention, the cutting oil supply means has preferably a discharge member, the discharge member having a nozzle and mounted on the member.
DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view showing a machine tool according to the invention.
FIG. 2 is a view showing an interior construction of a workhead.
FIG. 3 is a view showing a control system.
FIG. 4 is a side view showing a toolholder and the peripheral members.
FIG. 5 is a front view showing a toolholder and the peripheral members.
FIG. 6 is a view showing an example of a turning operation.
FIG. 7 is a view showing another example of a machining operation.
FIG. 8 is a view showing a further example of a machining operating.
FIG. 9 is a view showing a workpiece machined.
FIG. 10 is a view showing another workpiece machined.
FIG. 11 is a view showing a further machined workpiece.
FIG. 12 is a view showing a still further workpiece machined.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referring to FIG. 1, a machine tool according to this invention comprises a main body 1, a workhead 4, a toolhead 5, a first index part 6, a first drive part 7, a second index part 8, a first prevention part 9, a second drive part 10, drive systems 12, 13, a tank for cutting oil 200, a supply device for cutting oil 201.
The main body 1 has a bed 2 and column 3.
Referring to FIGS. 1, 2, a casing 15 of the workhead 4 supports the first drive part 7, the second index part 8 and the first prevention part 9. A spindle 16 is rotatably supported on the casing 15 by bearings 17-19. A workholder 20 is detachably supported in the spindle 16 in a conventional collet chuck manner.
The workholder 20 has a tapered portion 21 corresponding to a mounting hole 22 of the spindle 16.
A rod 24a of an oil device 23 can be moved in a direction e to fix the tapered portion 21 of the workholder 20 in the mounting hole 22. The tapered portion 21 can be detached from the mounting hole 22 by moving the rod 24a in direction f.
The first prevention part 9 is located near the other end of the spindle 16. The first prevention part 9 comprises a hydraulic brake device 25 and a rotor 26. The brake device 25 is mounted on the casing 15. The rotor 26 is attached to the other end of the spindle 16. The rotating rotor 26, or the spindle 16, can be stopped by the brake device 25 on request.
The first drive part 1 comprises a motor 27, gears 28, 29
REFERENCES:
patent: 3893355 (1975-07-01), Maastricht
patent: 4557643 (1985-12-01), Cioci
patent: 4570313 (1986-02-01), Holmstrom et al.
patent: 4573836 (1986-03-01), Andersson
patent: 4929130 (1990-05-01), Diebolt et al.
patent: 4981403 (1991-01-01), Katayama
Bilinsky Z. R.
Kitamura Machinery Co. Ltd.
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