JPH0739522Y2 - Lathe block build-type body structure - Google Patents

Description

TECHNICAL FIELD The present invention relates to a block-build type main body structure of a lathe.

2. Description of the Related Art Conventionally, the main body structure of an NC lathe is capable of moving a carriage having an intermediate base and a tool rest movable in the X-axis direction on one guide surface of a bed integrally having a Z-axis direction guide surface. Placed on
The tailstock is generally placed on the other guide surface so that the tailstock can be moved. However, in the case of the chuck work only specification, since the tailstock is not attached, the tailstock guide surface is not required. If there is this unnecessary guide surface, the flow of cutting chips is deteriorated, and problems such as an increase in cost occur. For this reason, as shown in FIG. 2, there is a slant type bed in which the tailing guide guide 101 can be separated from the bed main body 102 and the tailing guide guide is removed when the chuck work is exclusively used.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention As described in the prior art, the tailstock guide guide shown in FIG. 2 is separable from the tail surface of the bed 102 on the tail guide guide mounting surface or the tail stock. Since the guide guide mounting surface and the headstock unit mounting surface are inclined, it is troublesome to adjust the center height of the headstock unit 103, tailstock unit 104, and tool post unit, and the tailstock guide base must be removed. In this case, there is a problem that sufficient space for installing a chip conveyor cannot be obtained, and since the saddle guide is integrally formed with the bed, the bed 102 is made of high-grade cast material with low wear and high rigidity. There is a problem that it is necessary to consider whether to make it or to attach a hardened steel plate or the like to the sliding surface.

The present invention has been made in view of these problems of the conventional technology, and the purpose thereof is to easily adjust the height of the core, and a high-grade casting material only needs a guide for saddles. It is intended to propose a block-build type main body structure of a lathe.

Means for Solving the Problems In order to achieve the above object, a block-build type main body structure of a lathe according to the present invention has a first guide surface (2
a), the second guide surface (3a) has a tilt angle (θ) in the X-axis direction.
Forming a horizontal mounting surface (1a) and a second horizontal mounting surface (1b),
First guide table for saddle (2) on the first horizontal mounting surface (1a)
On the second horizontal mounting surface (1b), the second guide table (3) for tailstock is provided so as to be positionally adjustable and separable in the direction perpendicular to the axis of the spindle, and the first guide table (2) for the saddle is provided. The first guide surface (2a) is on the top, and the second guide surface (3a) is on the tailstock second guide base (3). The inclination angle in the X-axis direction with respect to the horizontal mounting surface. and the second
A headstock unit is provided on a horizontal mounting surface so that the position of the headstock unit can be adjusted in the direction perpendicular to the spindle axis.

Action In the case of center work specifications or center work / chuck work common specifications, the first guide with Z-axis direction guide surface on the leg
The guide base and the second guide base are fixed to each other, a saddle having a tool rest unit movable in the X-axis direction is movably assembled on the first guide base, and a tailstock unit is mounted on the second guide base. Adjust the position and tighten.

In the case of the chuck work only specification, the second guide and tailstock are not attached.

Example An example will be described with reference to FIG.

In a well-known NC lathe, two horizontal mounting surfaces 1a and 1b are formed with steps on the upper surface of a leg 1 installed on the floor, and a saddle guide 2 is mounted on the upper mounting surface 1a. Further, tailstock guides 3 are fixed on the lower mounting surface 1b so that their positions can be adjusted in the direction perpendicular to the spindle axis. Information board 2,
The upper surface of 3 is formed as an inclined surface having a predetermined angle θ in the X-axis direction with respect to the horizontal, and guide surfaces 2a, 3a in the Z-axis direction are formed on the inclined surfaces. A saddle 4 having a guide surface 4a in the X-axis direction on its upper surface is movably mounted on the guide surface 2a, and an intermediate platform 5 is movably mounted on the guide surface 4a of the saddle. A tool rest unit 7 having a turret 6 capable of swiveling and indexing is fixedly mounted on the middle base 5, and tools are detachably attached to a plurality of tool attachment stations (not shown) of the turret 6. On the other hand
The tailstock unit 8 is fastened on the 3a so that the position can be moved, and the headstock unit 9 is fixed on the lower mounting surface 1b of the bed on the rear side in the figure so as to be positionally adjustable in the direction perpendicular to the spindle axis. ing.

Next, the operation of this embodiment will be described.

In the case of the center work specification, the guide base 2 is mounted on the upper mounting surface 1a of the leg 1, the guide base 3 and the spindle head unit 9 are mounted on the lower mounting surface 1b, and the saddle 4, middle is mounted on the guide base 2. Attach the tool rest unit 7 via the base 5, place the tailstock unit 8 on the guide base 3, and adjust the center height so that the spindle and the tailstock are concentric. The Z-axis passing through and the center height of the tool post unit 7 in the Y-axis direction is adjusted. At this time, if the difference in the center height is δ mm, it can be adjusted by moving the guide base 2 or the guide base 3 and the headstock unit in the left-right direction by a value of δ / sin θ. In the case of the chuck work only specification, attach a chip conveyor, a chip cover, etc. (not shown) on the lower mounting surface 1b.

Effect of the Invention Since the present invention is configured as described above, it has the following effects.

Since the first guide for saddle and the second guide for tailstock are separable from each other on the horizontal mounting surface of the leg, the second guide for tailstock can be removed to be used exclusively for chuck work. By using common parts, there is no waste, and each specification can be handled by the block build method, which shortens the delivery time and facilitates the adjustment of the center height of the headstock unit, tailstock unit, and tool post unit.

In addition, the first guide can be made of high-grade casting and the legs can be made of normal casting, resulting in cost reduction. In the case of the chuck work dedicated specification, a space for mounting the chip conveyor, chip cover, etc. can be obtained at the position of the second guide. .

[Brief description of drawings]

FIG. 1 is an explanatory view of a block build type main body structure of a lathe of this embodiment, and FIG. 2 is an explanatory view of a conventional guide separation type structure for a tailstock. 1 …… Legs, 1a, 1b …… Horizontal mounting surface 2 …… Saddle guide, 3 …… Tailstock guide

Claims (1)

[Scope of utility model registration request] 1. A lathe in which a first guide surface (2a) and a second guide surface (3a) in the Z-axis direction each have an inclination angle (θ) in the X-axis direction. A mounting surface (1a) and a second horizontal mounting surface (1b) are formed, and the first horizontal mounting surface (1
It is possible to position and separate the saddle first guide base (2) on the a) and the tailstock second guide base (3) on the second horizontal mounting surface (1b) in the direction perpendicular to the spindle axis. The first guide surface (2a) on the saddle first guide table (2),
The second guide surface (3
a) The inclination angle θ in the X-axis direction with respect to the horizontal mounting surface
And a headstock unit is provided on the second horizontal mounting surface so as to be positionally adjustable in a direction perpendicular to the spindle axis.