JPS62224540A - Machine tool - Google Patents

Abstract

PURPOSE:To make it possible to easily mount and dismount two tool units, by removably providing a rotary shaft which is provided in a Z-axis tool unit having a removable and replaceable Z-axis tool, in the tool mounting section of an X-axis tool unit. CONSTITUTION:An X-axis rotary tool unit 15 and a Z-axis rotary tool unit 17 are mounted on a turret 13 on a cross-feed bed. A convex part 127 adapted to be fitted in a groove 107 formed in the rotary shaft 89 of the X-axis rotary tool unit 15,is formed on one end part of a rotary shaft 117 provided with a bevel gear, and due to this coupling rotation may be transmitted. A bevel gear 129 meshed with the rotary shaft 117 provided with the bevel gear, is secured to the rotary shaft 131 laid in the Z-axis direction. a tapered hole 137 adapted to be fitted therein with a collet 135 for mounting a Z-axis rotary tool is formed in the front end part of a rotary shaft 131, and a thread part 141 adapted to be engaged with a collet fastening nut 139 is formed in the hole 137.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a machine tool, and more specifically, the present invention relates to a machine tool, and more specifically, it is possible to easily remove and replace the rotating operator unit in the X-axis direction and the X-axis direction, which is attached to the tool post. Regarding machine tools.

[Technical Background of the Invention and Problems Therewith] Conventionally, when installing a rotary tool unit in the X-axis direction that is equipped with a tool on a tool post in a turret lathe, for example, a dedicated intermediate shaft is interposed in the drive mechanism of the tool post. There must be.

In other words, when changing the setup from a rotary tool unit in the X-axis direction to a rotary tool unit in the X-axis direction, remove the rotary tool unit I- in the X-axis direction and install the intermediate shaft. A rotary tool unit was installed.

For this reason, the current situation is that the configuration becomes complicated, and that installation and removal require a large amount of VF time and man-hours, making it impossible to improve workability.

[Purpose of the invention] The present invention has been devised in view of the above-mentioned problems.

Therefore, the object of the present invention is, for example, to rotate the turret. It is an object of the present invention to provide a machine tool in which rotary tool units in the X-axis direction and in the X-axis direction can be easily attached and detached from a tool rest such as No. 18, and workability is improved.

[Means for Solving the Problems] In order to achieve the object, the present invention has the following configuration.

That is, in the machine tool according to the present invention, the X-axis rotary tool is freely disposed at the neck 112 with respect to the X-axis rotary tool unit mounted on the tool rest of the machine tool, and the X-axis rotary tool is detachable and replaceable. The rotary shaft provided in the rotary tool unit in the X-axis direction is provided so as to be freely attachable to the tool mounting portion of the rotary tool unit in the X-axis direction.

[Example] Hereinafter, an example of the present invention will be specifically described with reference to the drawings.

For example, FIG. 5 shows a turret lathe embodying the present invention, in which a guide surface 5 is placed on the upper surface of the base 3 of the turret lathe W1, and a general working table 7 runs on this guide surface 5 in the X-axis direction. It is movable in the left-right direction (in Fig. 5).

In this seventh reciprocating configuration, a transverse feed table 11 that is movable in the X-axis direction (in the front and back directions of the drawing in FIG. 5) is provided on a saddle 9 that moves in the X-axis direction astride the guide surface 5. .

A turret 13 is mounted on the traversal table 11, and a plurality of rotary tool units 15 and 17 are mounted on the turret 13, respectively. Na J3, turret 1
3 and a drive mechanism 23 for driving each rotary tool.

Further, the base 3 is provided with a headstock 25 and a chuck 27 attached to the main spindle, and the turret lathe 1 is configured.

The drive mechanism 23 will be explained in more detail with reference to FIG. 4.

A hollow indexing shaft 29 is provided in the X-axis direction (horizontal direction in FIG. 4), and a drive shaft 31 for a rotary tool unit or the like is mounted slightly above the indexing shaft 29 via a bearing 33, separated vertically and orthogonally. They are each rotatably supported by the frame 35 in this state.

Further, a turret 13 is fixed to the left end of the indexing shaft 29, and the turret 13 incorporates an X-axis or rotary tool units 15 and 17 in the X-axis direction, which will be described later. (See Fig. 5) The turret 13 is indexed by driving a worm wheel 39 from a drive source (not shown) via a worm shaft 37 (partially not shown), and using these three worm wheels, spline grooves 41, etc. The connected indexing shaft 29 rotates.

An indexing control II device 45 including an indexing plate 43 is mounted on the right end side of the indexing shaft 29, and the indexing shaft 29 is mounted on the left side.
A piston 47 is integrally fixed to the turret 13 on the left end side, and a sleeve 49 is fixed to the indexing shaft 29 by a spline 51W.

Incidentally, the index @ 29 can be freely moved slightly open in the X-axis direction by a mechanism described below while keeping the turret 13 fixed.

That is, a fluid pressure cylinder device 55 is formed between the piston 47 fixed to the indexing shaft 29, the frame 35, and the shilling cap 53.

Furthermore, the locking plate 57 fixed to the frame 35 side and the turret 1~
The locking plate 59 fixed to the turret 13 side has a surface that is in mutual contact with the locking plate 59 through an uneven groove 61, and regulates the rotation angle position of the turret 13.

In operation, by supplying oil from a hydraulic boat (not shown), the turret 13 moves to the left by the stroke length of the hydraulic cylinder device [55], and the locking plate 59 disengages, allowing the turret to rotate freely.

Then, the tool is rotated by a specified amount according to a command from the index control device af45, the desired tool is positioned at the machining position, and the oil supply to the fluid pressure cylinder device 55 is switched to lock plates 57 and 59.
The positioning is completed by engaging the two.

Next, a mechanism for driving the rotary tool units 15 and 17 will be explained.

This drive is performed by a drive motor 6 provided on the side wall of the frame 35.
3 (partially not shown), a pulley 65, a timing belt 67, a large-diameter pulley 69, a drive shaft 31, and this drive shaft 3.
1, and then rotates a bevel gear 73 with a shaft that meshes with the bevel gear 71.

The shafted bevel gear 73 is rotatably supported by a bearing 75 mounted on the frame 35, and has an uneven groove 77 at its shaft end so that it can be attached to and detached from a mating shaft 79.

The shaft 79 is integrally attached to the sleeve 81 and is rotatably supported by bearings 83 at its left and right ends, and is attached to pass through the turret 13.

A bevel gear 1785 is fixed to the sleeve 81 and meshes with a bevel gear 87 provided on the rotary tool unit 15 in the X-axis direction.

Next, an embodiment of the rotary tool unit according to the present invention shown in FIGS. 1 to 3 will be described in more detail.

Regarding the zero roll tool unit 15 in the X-axis direction (see Fig. 1).

The bevel gear 87 that meshes with the bevel gear r85 mentioned above is
It is fixed to the end of the rotating shaft 89 with a key 91 or the like.

The rotating shaft 89 is supported by a sleeve 97 that is inserted and fixed through a bearing 93 into a plurality of holes 95 radially bored in the turret 1-13.

The tip of the rotating shaft 89 (on the left side in FIG. 1) is provided with a tapered hole 101 into which a collet 99 for attaching an X-axis rotating tool 19 (not shown) is inserted, and a collet tightening hole 101 is provided.
A threaded portion 105 is provided to be screwed into a nut 103 for one.

Note that grooves 107 are formed radially at the tip of the rotary shaft 89, and these grooves 107 are used when engaging a rotary tool unit 17 in the Z-axis direction, which will be described later.

A supporting plate 111 which is rotatable via a ball 109 is mounted on the collet tightening nut 103, and the collet 99 is supported on this supporting plate 111.

This is because the rotation of the collet tightening nut 103 is not transmitted to the collet 99 when the collet tightening nut 103 is tightened.

In addition, as a measure against oil leakage, seal members 113 and 11
5 is installed.

Next, regarding the rotary tool unit 17 in the Z-axis direction (see FIGS. 2 and 3).

Remove the nut 103 that tightens the collet 99 in the rotary tool unit 15 in the X-axis direction described above.

There, a bracket 121 that rotatably supports a rotating shaft 117 with a bevel gear V through a bearing 119 is attached to the key 12.
3 and fixed to the outer periphery of the turret 13 with bolts 125.

The end of the bevel gear t7fj rotating shaft 117 is provided with a convex portion 127 that fits into the groove 107 provided in the rotating shaft 89 of the rotary tool unit 15 in the X-axis direction, and this coupling prevents rotation. communicated.

Note that the bevel gear 129 that meshes with the rotating shaft 117 with bevel gear is fixedly attached to the rotating shaft 131 provided in the Z-axis direction.

This rotating shaft 131 is rotatably supported by the bracket 121 via bearings 133 at both ends.

Further, a collet 135 for attaching a Z-axis rotating tool 21 (not shown) is inserted into the tip (upper side in FIG. 2) of the rotating shaft 131, which has the same configuration as the aforementioned X-axis rotating tool unit 15. A tapered hole 137 is provided.

Also, the threaded portion 1 that engages with the collet tightening nut 139
41 is provided.

A rotatable support plate 145 is fitted into the collet tightening nut 139 via a ball 143, and the collet 135 is mounted on this support plate 145.

Note that seal members 147, 149, and 151 are installed as a measure against oil leakage.

With the above configuration, by removing some members of the rotary tool unit in the X-axis direction, the rotary tool unit in the Z-axis direction can be easily installed and replaced.

Although this embodiment has been described with respect to a turret lathe, it goes without saying that it can be used in various machine tools and that various modifications can be made without departing from the gist of the present invention.

[Effects of the Invention] As described above, the present invention facilitates attachment and detachment of the rotary tool unit in the X-axis direction and the two-axis direction.

As a result, the tool unit can be made lighter and smaller by simplifying its configuration, and costs can be reduced. Furthermore, significant favorable results can be obtained in terms of price, such as reducing the number of man-hours required for attachment and detachment. can be achieved.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view showing a rotary worker unit in the X-axis direction according to the present invention, FIGS. 2 and 3 show a rotary tool unit in the Z-axis direction according to the present invention, and FIG. 2 is a cross-sectional view , 3rd
The figure is a side view taken along the line ■-■ in Figure 2, Figure 4 is an explanatory diagram showing the configuration of the turret drive mechanism embodying the present invention, and Figure 5 is a front view of the turret lathe embodying the present invention. It is a diagram. Explanation of the symbols representing the main parts of the drawings 15...Rotary tool unit (X-axis direction) 17...Rotary tool unit (Z-axis direction) Procedure (written spontaneously) April 130, 1988 Patent n Director-General 1, +J+A'1 Indication 1-1, 1961 Patent Application No. 63934-2, Name of invention Machine tool 3, Relationship to the Ministry case making the amendment Patent applicant's address (residence) Komaki City, Aichi Prefecture 2-158 Koboshin Nakajima Name Washino Kikai Co., Ltd. Representative Keiji Sono Department 4, Agent Address 1-chome Toranomon, Minato-ku, Tokyo 105 [+2?
1t No. 3) Same No. 5, Building 5th Floor 5, "Detailed Description of the Invention" column 7 of the specification to be amended, page 3, line 17 of the statement of contents of the amendment, "This round trip 7 Correct "J of this carriage 7" to "J" of this carriage 7.

Claims (1)

[Claims] A rotary tool in the X-axis direction is removably attached to a rotary tool unit in the X-axis direction mounted on a tool post in a machine tool,
A rotary shaft provided in a Z-axis rotary tool unit capable of attaching and detaching a Z-axis rotary tool is detachably provided to a tool mounting portion of the X-axis rotary tool unit. Machine Tools.