JPS6357104A - Capstan rest - Google Patents

Abstract

PURPOSE:To make an occupied attached position get off with two spots at the time of machining a large diametral work, by installing a holding device, positioning a bore diameter tool in the point midway between an adapter attached position and an adjacent position, in the offset adapter installed in a tool attached position. CONSTITUTION:Twelve tool attached positions 1a are formed around a turret body 3, and plural pieces of tool holders 6 holding cutting tools 5 are attached to optional tool attached positions 1a. When a work large in diameter is machined with a bore diameter tool 2D, a tool holding hole 9a of an offset adapter 9 is positioned in an intermediate position MP between these tool attached positions 1a1 and 1a2, and the turret body 3 is indexed to the intermediate position MP, thus machining takes place. Therefore, a maximum machining diameter DMX1 is more expandable than a machining diameter DMX in case of a bore diameter tool 2E being attached to the ordinary tool attached position 1a, so that the occupied tool attached position 1a will get off with only two spots, thus many tools are attachable.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field The present invention relates to a turret tool rest used in a lathe and capable of holding a plurality of tools.

(b), Prior Art Conventionally, when tools are mounted on this type of tool rest, the tools are mounted in a manner corresponding to tool mounting positions provided in advance at equal intervals.

(C) 0 Problems to be Solved by the Invention However, in that case, the tools in the tool rest will be arranged at approximately equal intervals. When mounting, there are restrictions on the diameter of workpieces that can be machined.

That is, as shown in FIG. 1, the maximum machining diameter DMX of the workpiece of the drilling/inner diameter tool 26 mounted at the tool mounting position 1a of the turret tool post 1 is the same as the maximum machining diameter DMX of the workpiece mounted at the adjacent tool mounting position 1a. tool 2A.

2. To machine a workpiece with a larger diameter that does not interfere with tool 2, use tools 2A, 2. It is necessary to remove it from the turret tool post L. However, in order to process a large-diameter workpiece, three tool mounting positions 1a are used exclusively for this purpose, and the Klett tool rest 1a is used exclusively for this purpose.
The number of tools that can be attached to the machine has decreased, making it impossible to meet a wide variety of machining requests.

The present invention (in order to eliminate the above-mentioned drawbacks), it is an object of the present invention to provide a turret tool rest that allows only two dedicated tool mounting positions even when machining a large-diameter workpiece. .

(d) Means for solving the zero problem, that is, the present invention provides an offset adapter (9) that is removably installed at the tool mounting position (1a), and that the offset adapter (9) is provided with a hole and an inner diameter. The tool (2) is placed between the tool mounting position (1a) where the offset adapter (9) is mounted and the tool mounting position (1a) adjacent to the said mounting position.
A tool holding means (9a) that can be positioned at an intermediate position between the two is provided.

Note that the numbers in parentheses are for convenience and indicate corresponding elements in the drawings, and therefore, this description is not limited to the descriptions on the drawings. The following r (el
The same applies to the '*effect' column.

(e) 8 Effects With the above-described configuration, the present invention provides an offset adapter (
9) acts to position the drilling/inner diameter tool (2) between two adjacent tool mounting positions N(la, laJ).

(f), Example Embodiments of the present invention will be described below based on the drawings.

FIG. 1 is a front view showing an embodiment of a turret tool post according to the present invention.

As shown in FIG. 1, the turret tool rest 1 has a turret body 3 formed in a regular dodecagonal shape, and the turret body 3 is provided so as to be indexable and rotatable in the direction of the arrow ASB around the rotation center CT. It is being Twelve tool mounting positions 1a are formed around the turret body 3, and a plurality of tool holders 6 for holding bits 5 are removably mounted at any tool mounting position gl 1a. ing.

Further, at another tool mounting position 1a, a tool holder 7 for supporting a drilling/inner diameter tool 2 such as a boring bar or a drill is mounted in a flexible manner. Additionally, an offset adapter 9 is also removably installed at the tool installation position 1a at the upper right of the figure.
A tool holding hole 9a is formed therein. A drilling/inner diameter tool 2° is placed in the tool holding hole 9a, and the tool 2° is placed at the tool mounting position 1a.

and adjacent tool mounting position 1a2 (the tool mounting position 1a2
(No tool is attached).

Since the cutting tool rest 1 has the above-described configuration, when processing a workpiece, the turret body 3 is rotated and indexed in the directions of arrows A and B as appropriate, and the cutting tool 5 used for processing and drilling are adjusted. - Position the inner diameter tool 2 at a predetermined machining position. At this time, when machining a workpiece with a large diameter using a 2° drilling/inner diameter tool, use the offset adapter 9.
Processing is performed by positioning the drilling/inner diameter tool 2° attached to the turret body 3 at the predetermined processing position.
The tool is indexed and positioned at an intermediate position MP between the tool mounting position 1m and the tool mounting position 1a2).

Since the drilling/inner diameter tool 2D is positioned at an intermediate position MP between the tool mounting position 1a to which it is mounted and the tool mounting position 1a2 adjacent to the tool mounting position 1a, its maximum machining diameter DMX 1 is the machining diameter D when the drilling/inner diameter tool 2 is installed at the normal tool installation position 1a.
It will expand significantly more than MX.

(g) 0 Effects of the Invention As explained above, according to the non-invention, the offset adapter 9 is removably provided at the tool mounting position 1a of the turret body 3, and the offset adapter 9 is provided with a hole.・Constructed by providing a tool holding means such as a tool holding hole 9a that can position the inner diameter tool 2 at an intermediate position MP between the tool mounting position 1a where the offset adapter 9 is mounted and the tool mounting position 1a adjacent to the mounting position. Therefore, even when machining a workpiece with a large diameter, it is possible to use only two dedicated tool mounting positions 1a, and accordingly more tools can be mounted on the turret tool post 1.
It becomes possible to meet a variety of processing requests.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an embodiment of a turret tool post according to the present invention. 1...Turret tool post 1a...Tool mounting position 2...Drilling/inner diameter tool 3...Turret body 9/Offset adapter 9a...Tool holding means (tool holding hole) MP...
・Intermediate position

Claims (1)

[Scope of Claims] A turret tool post having a rotatably indexable turret body, the turret body being provided with a plurality of tool mounting positions, wherein an offset adapter is detachably attached to the tool mounting position. and the offset adapter is provided with a tool holding means capable of positioning the drilling/inner diameter tool at an intermediate position between a tool mounting position where the offset adapter is mounted and a tool mounting position adjacent to the mounting position. Turret tool rest.