JPH068001A - Numerically controlled lathe - Google Patents

Abstract

PURPOSE:To reduce a floor space and to easily and correctly set up a precision standard of a whole machine. CONSTITUTION:A rectangular parallelopiped shape column 2 is erected on a base 1. On a vertically standing surface 2b of the column 2, a spindle stock 3 and two pieces of tool rests 4 are arranged. The spindle stock 3 is fixed on the central part of the column 2 in the height direction. Each of the tool rests 4 is installed on the column 2 through a saddle 8 and a middle base 9 vertically on the spindle stock 3. The saddle 8 is connected to an X-axis drive motor 13 through an X-axis 12 and moved on a vertical slide surface 14 of the column 2. The middle base 9 is connected to a Z-axis drive motor 16 through a Z-axis and moved on a horizontal slide surface 17 of the saddle 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an NC lathe, and more particularly to an overall structure for reducing floor space.

[0002]

2. Description of the Related Art A conventional NC lathe is generally constructed by disposing a headstock 3 and a tool rest 4 in the longitudinal direction of a horizontally long bed as shown in FIG. For this reason, there is a problem that the frontage W of the machine becomes large and the floor space expands, which causes a disadvantage in layout. In particular, as shown in FIG. 4, a plurality of headstocks 3, 3 or tool rests 4, N equipped with 4
In the case of a C lathe (Japanese Utility Model Publication No. 60-138601, etc.), such a problem was remarkable.

[0003]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an NC lathe capable of significantly reducing the floor space and easily and accurately setting the accuracy standard of the entire machine.

[0004]

In order to solve the above problems, an NC lathe according to the present invention has a rectangular parallelepiped column standing on a base, and a headstock and a tool rest on the upright surface of the column. It is configured by being arranged vertically.

[0005]

According to the NC lathe of the present invention, since the headstock and the tool rest are vertically arranged on the column, the frontage of the machine is reduced and the floor space is reduced, which is very advantageous in layout. Even in the case of an NC lathe equipped with a plurality of turrets or headstocks, its floor space can be minimized. Also, since the column is formed in a rectangular parallelepiped shape, it is possible to easily ensure the right angle between the three surfaces of the upright surface, the upper end surface and the lower end surface at the stage of manufacturing the column, and the accuracy standard of the entire machine is accurate when assembling. Can be set to.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In FIGS. 1 and 2, reference numeral 1 denotes a base, and a column 2 is erected on the base 1, and the base 1 and the column 2 form a machine frame of an NC lathe. The column 2 is formed in a rectangular parallelepiped shape, and its lower end surface 2
It is assembled in a state where a is joined to the upper surface of the base 1.

A headstock 3 and two tool rests 4 are vertically arranged on a vertical surface 2b of the column 2. The headstock 3 is fixed to the central portion of the column 2 in the height direction and includes a chuck 5 for gripping a work (not shown). The chuck 5 is connected to a spindle drive motor 7 in the column 2 via a belt 6. Each tool rest 4 is attached to the column 2 above and below the headstock 3 via a saddle 8 and an intermediate stand 9 and is provided with a turret 11 for indexing a tool 10. The center lines of the headstock 3 and the tool rest 4 are located in the same vertical plane.

The saddle 8 is connected to an X-axis 12 extending vertically, and the X-axis 12 is connected to an X-axis drive motor 13 installed on the upper end surface 2c of the column 2, and as the X-axis drive motor 13 rotates, The saddle 8 is moved on the vertical sliding surface 14 of the column 2. On the other hand, the center base 9 is coupled to a horizontally extending Z-axis 15, and the Z-axis 15 is connected to a Z-axis drive motor 16 installed on the saddle 8. As the Z-axis drive motor 16 rotates, the center base 9 moves. It is moved on the horizontal sliding surface 17 of the saddle 8. Then, the spindle drive motor 7, the X-axis drive motor 13,
The Z-axis drive motor 16 is controlled by an NC device (not shown), the tool rests 4 are fed in the vertical and horizontal directions, and the work is turned by the tool 10.

According to the NC lathe of this embodiment constructed as described above, since the headstock 3 and the tool rest 4 are vertically arranged on the column 2, as shown in FIG. Can be made smaller and the floor space can be greatly reduced, which is very advantageous in terms of layout, and in particular, the floor space can be minimized in a 4-axis NC lathe equipped with two tool rests 4. Further, since the column 2 is formed in a rectangular parallelepiped shape, its lower end surface 2a, vertical surface 2b, and upper end surface 2 are formed.
A right angle between the three planes of c can be easily secured at the stage of manufacturing the column 2, and the accuracy standard of the entire machine can be accurately set at the time of assembly.

The present invention is not limited to the above-described embodiment, but the positions of the headstock and the tool rest relative to the chuck and the turret are conventionally separate on the left and right sides, whereas in FIG. The headstock and the tool rest are located on the same side with respect to the chuck and the turret so that they can be positioned at, for example, an NC lathe equipped with two headstocks and two tool rests. It is also possible to appropriately change the configuration of each unit and embody it without departing from the spirit of the invention.

[0011]

As described above in detail, according to the present invention, since the headstock and the tool rest are vertically arranged on the upright surface of the rectangular parallelepiped column, the floor space is greatly reduced. In addition to being able to do so, it has an excellent effect that the accuracy standard of the entire machine can be set easily and accurately.

[Brief description of drawings]

FIG. 1 is a front view of an NC lathe showing an embodiment of the present invention.

FIG. 2 is a side view of the NC lathe shown in FIG.

FIG. 3 is a plan view of a conventional NC lathe having one or more tool rests.

FIG. 4 is an explanatory view of a conventional NC lathe having a plurality of headstocks and a tool rest.

[Explanation of symbols]

1 ・ ・ Base, 2 ・ ・ Column, 3 ・ ・ Headstock, 4 ・ ・ Cutting tool, 5 ・ ・ Chuck, 6 ・ ・ Belt, 7 ・ ・ Spindle drive motor, 8 ・ ・ Saddle, 9 ・ ・ Middle stand, 10 ... Tools, 1
1 ... Turret, 12 ... X axis, 13 ... X axis drive motor, 14 ... vertical sliding surface, 15 ... Z axis, 16 ... Z axis driving motor, 17 ... horizontal sliding surface

Claims (1)

[Claims] 1. An NC lathe in which a rectangular parallelepiped column is erected on a base, and a headstock and a tool rest are vertically arranged on a vertical surface of the column.