JPH042365B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a turret-type machine tool capable of performing complex machining such as drilling, tapping, and milling.

[Conventional technology]

As a conventional turret type machine tool of this type, Jikosho
62-12491 and the like are known.

In this conventional structure, a turret head having a plurality of spindles is indexed and rotated to select a tool provided on the spindle, and the spindles are rotationally driven to perform compound machining.

[Problems to be Solved by the Invention] However, with the above conventional structure, it is not possible to machine a workpiece whose workpiece surface exists in both horizontal and vertical directions. Since a tilting table unit that can be tilted is used, there are disadvantages in that the economic burden increases, and the time required to move the workpiece is long, which may reduce work efficiency.

[Means for solving problems]

The purpose of the present invention is to eliminate these disadvantages, and the gist thereof is to provide a machine tool in which a tool can be selected by indexing and rotating a turret head having a plurality of spindles. The turret head is arranged on the generatrix of a right circular cone having a vertical and horizontal generatrix and has an apex angle of 90 degrees, and is provided with an indexing mechanism for indexing and rotating the turret head about the axis of the right circular cone, and is positioned in the vertical and horizontal directions. The turret type machine tool is characterized in that it includes a drive mechanism for selectively rotating the main shaft.

[Effect]

Machining in the vertical and horizontal directions can be performed by indexing and rotating the turret head by the indexing mechanism to select a tool, and by selectively rotating the main shaft located in the vertical and horizontal directions by the drive mechanism.

〔Example〕

1 to 5 show embodiments of the present invention, FIGS. 1 to 4 are the first embodiment, and FIG. 5 is the second embodiment.

In the first embodiment shown in FIGS. 1 to 4, 1 is a machine base, a movable base 2 is provided on the top of the machine base 1 so as to be movable back and forth, and a column 3 is provided on the movable base 2 so as to be movable left and right. A frame 4 is provided on the column 3 so as to be movable up and down, a turret head 5 is provided on the frame 4, a mount 6 is provided on the machine base 1, and a workpiece W is mounted on the mount 6.

Reference numeral 7 denotes principal axes, six of which are provided in the turret head 5, and are arranged at six equally spaced positions on the generatrix of a right circular cone c with vertical and horizontal generatrix a and b and apex angle θ = 90 degrees.
The main shaft 7 is rotatably provided by a bearing 8, and a chuck 9 is provided at the outer end of the main shaft 7, so that a tool 10 can be mounted on the chuck 9.

Reference numeral 11 denotes an indexing mechanism in which a turret head 5 is provided on the frame 4 so as to be rotatable about the axis d of the right circular cone c, and the turret head 5 is provided so as to be movable back and forth in the direction of the axis d. A push port 13 and a pull port 14 for supplying pressure oil to the piston portion 12 are formed in the frame 4, a face latch-shaped coupling 15 is provided in the turret head 5, and a similar coupling 16 is provided in the frame 4, In addition, a servo motor 17 for index rotation is provided on the frame 4, a driven gear 18 is formed on the turret head 5, and the rotation of the servo motor 17 is controlled by the drive gear 1.
9, a gear 20, an intermediate shaft 21, a gear 22, and a driven gear 18 so that the turret head 5 can be rotated.

Reference numeral 23 denotes a drive mechanism, in which drive cylinders 24 and 25 are rotatably provided on the frame 4 by bearings 26 at positions opposite to the main shaft 7 located in the horizontal direction and at positions opposite to the main shaft 7 located in the vertical direction, respectively. , spline shafts 27, 2 in the drive cylinders 24, 25.
The frame 4 is provided with engagement cylinders 30 and 31 that move the spline shafts 27 and 28 forward and backward through a rotary joint 29, and the drive cylinders 2
4 and 25 are provided with pulleys 32 and 33, and the frame 4
A driving servo motor 34 is provided on the drive servo motor 34, and one pulley 32 is rotated via a pulley 35 and a belt 36.
The other pulley 33 is provided to rotate via a gear 37, a gear 38, a transmission shaft 39, a pulley 40, and a belt 41. A spline-shaped male engaging portion 44 that can be engaged with the female engaging portions 42 and 43 is formed on the main shaft 7.

Since this first embodiment has the above-mentioned configuration, the movable base 2 and frame 4 are moved depending on the position of the workpiece W, and pressure oil is supplied to the push port 13 of the indexing mechanism 11 to move between the couplings 15 and 16. The turret head 5 is indexed and rotated by the servo motor 17 to select the tool 10, the pull port 14 is supplied with pressure oil to engage the couplings 15 and 16, and the servo motor 34 of the drive mechanism 23 is used to rotate the drive cylinder 24. , 25 is rotated and the spline shaft 28 is moved to protrude by the engagement cylinder 31 as shown in FIG. can be rotated, and when the spline shaft 27 is projected and moved as shown in the imaginary line by the engagement cylinder 30, the female engagement part 42 engages with the male engagement part 44 of the main shaft 7 located in the vertical direction, and the main shaft 7 can be rotated. Therefore, the main shaft 7 located in the horizontal and vertical directions can be selectively rotated, and machining can be performed in the horizontal and vertical directions, reducing economic burden and improving work efficiency. All tools attached to 10
can be used for both horizontal and vertical machining, making compound machining effective.

The second embodiment shown in FIG. 5 is an application of the present invention to a different model. In this case, a column 3 movable in the left and right direction is provided on the top of the machine base 1, and a frame 4 that is movable up and down is provided on the column 3. , a turret head 5 is provided on a frame 4, a movable base 2 is provided on a machine base 1 so as to be movable back and forth, a mounting base 6 is provided on the movable base 2, and a workpiece W is mounted on the mounting base 6.

〔Effect of the invention〕

As described above, the present invention can selectively rotate the main shaft located in the horizontal and vertical directions, and can perform composite machining in the horizontal and vertical directions, reducing economic burden and improving work efficiency. In addition, all tools attached to the turret head can be used for both horizontal and vertical machining, making compound machining effective.

As described above, the intended purpose can be fully achieved.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is an overall side view of the first embodiment, FIG. 2 is a partial sectional view thereof, FIG. 3 is a partial sectional view thereof, and FIG. 4 is an operating state. FIG. 5 is a side view of the second embodiment. a, b... Generating line of right circular cone, c... Right circular cone, d...
... Axis line, 5 ... Turret head, 7 ... Main shaft, 1
0... Tool, 11... Indexing mechanism, 23... Drive mechanism.

Claims (1)

[Claims] 1. In a machine tool in which a tool can be selected by indexing and rotating a turret head having a plurality of spindles, the spindle is placed on the generatrix of a right circular cone with vertical and horizontal generatrixes and an apex angle of 90 degrees. A turret comprising an indexing mechanism for indexing and rotating the turret head about the axis of the right circular cone, and a drive mechanism for selectively rotating the main shaft located in the vertical and horizontal directions. type machine tool.