JPH04136634U - Guide mechanism for spindle head in horizontal machining center - Google Patents

Abstract

(57) [Summary] [Structure] The spindle head 3 disposed between the pair of left and right vertical walls 1a, 1a of the column 1 has a spindle 5 in the center on the table 4 side, and has two sets of sliding guides on the left and right sides. By using
It is supported by a drive device 6 so as to be slidable in the vertical direction. A sliding guide, which is a guide mechanism, is connected to both vertical walls 1.
Two pairs of slide rails 7, 7, 7, 7 are provided on the inner surfaces of the spindles a and 1a in a vertical direction, facing each other, and slide rails 7, 7, 7, 7 are provided on both sides of the axis of the spindle 5 installed on the spindle head 3. The slide blocks 8, 8, 8, 8 are screwed to the slide blocks 8, and the press plates 9, 9, 9, 9 form recesses in which the slide rails 7 are slidably supported by the slide blocks 8. configured. [Effect] Since the supporting rigidity of the spindle head can be increased, rotational vibration and cutting vibration of the spindle are reduced, and the cutting force of the spindle and the cutting accuracy of machining operations can be improved.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is a horizontal machining center that can be mounted vertically to the column. This invention relates to a guide mechanism in a spindle head of a motor.

0002

[Conventional technology]

Conventionally, as shown in FIG. 4, the spindle head conventionally has a pair of left and right vertical A guide is provided and supported so as to be slidable in the vertical direction.

0003

[Problem that the idea aims to solve]

The spindle head supported at one point is similar to a single point support of a cantilever beam, and is subject to vibration during machining. It has the drawbacks of insufficient rigidity against motion and low machining accuracy.

0004

[Means to solve the problem]

In this invention, one set of left and right vertical guides is set in the horizontal direction of the spindle head. In detail, it is installed so that it can move vertically relative to the column of a horizontal machining center. This is accomplished by setting one set of vertical guides on the left and right to the spindle head to be attached, and two or more sets of vertical guides in the horizontal direction. This is a guide mechanism for the spindle head.

[0005]

[Effect]

The spindle head of a horizontal machining center is supported horizontally at two or more points. , high support rigidity.

[0006]

【Example】

A horizontal machining center equipped with a spindle head guide mechanism according to the present invention was constructed based on the drawings. I will explain. In Fig. 3, 1 is a column that moves horizontally on the bed 2; The system 1 has a pair of left and right vertical walls 1a, 1a, and a spindle head 3 is installed between the vertical walls 1a, 1a. will be placed. The spindle head 3 has a spindle 5 in the center of the table 4 side, and has a pair of left and right slides. By using two sets of guides, it is supported slidably in the vertical direction by the drive device 6. has been done. As shown in FIG. 1, the sliding guide serving as a guide mechanism has both the vertical walls 1a, Two pairs of slide rails 7, 7 are provided vertically facing each other on the inner surface of 1a. , 7, 7, and the slots provided on both sides of the axis of the spindle 5 equipped on the spindle head 3. screwed to the ride blocks 8, 8, 8, 8 and the slide blocks 8; A recess is formed by the slide block 8 to slidably support the slide rail 7. It is composed of holding plates 9, 9, 9, 9. Figure 2 shows an example of a modified guide mechanism. The column 1 is a vertical wall 1 having a U-shaped cross section. a, 1a are arranged facing each other, and each protruding wall 1b, 1b, etc. has a linear structure in the vertical direction. The array rails 10, 10... are fixed, and the linear rails 10, 10... A slide unit 11 that slides on each support portion 1 protruding from both sides of the spindle head 3 Fixedly installed at 2, 12, etc. In addition, 13 is the support part 12 and the slide unit 11. An adjustment liner is interposed between the two. In both of the above embodiments, the spindle head 3 is supported by two sets of guides on its left and right sides. , has high support rigidity and is effective in reducing cutting vibrations and rotational vibrations of the spindle. Naomoto Thoughts The two sets of guides meant in the proposal mean that the one set of guides used previously has been increased to two sets. The positioning of the increased set of guides is similar to that when an equivalent set is installed. In some cases, another set of guides is additionally added. And in the example , two sets of sliding guides or linear guides have been explained, but other guides are also available. There is no problem in using ID or multiple pairs of two or more. Another set of guides is In addition to being placed to the right with respect to the axial direction of the main shaft, it is also possible to It can also be placed.

[0007]

[Effect of the idea]

According to the present invention, since the support rigidity of the spindle head can be increased, rotational vibration and cutting of the spindle can be prevented. Cutting vibration is reduced, and the cutting force of the spindle and the cutting accuracy of machining operations can be improved.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of a spindle head guide mechanism according to the present invention.

FIG. 2 is a cross-sectional view of a guide mechanism for a spindle head in a modified embodiment.

FIG. 3 is an explanatory diagram of a horizontal machining center.

FIG. 4 is a cross-sectional view of a guide mechanism for a spindle head in a conventional example.

[Explanation of symbols]

1...Column, 1a...Vertical wall, 1b...Protruding wall, 2...
・Bed, 3. Spindle head, 4. Table, 5. Spindle, 6. Drive device, 7. Slide rail, 8. Slide block, 9. Holding plate, 10. Linear rail. 11...Slide unit, 12...Support part, 13
・Adjustment liner.

Claims (1)

[Scope of utility model registration request] 1. A guide mechanism for a spindle head in a horizontal machining center, comprising two or more sets of left and right vertical guides set in the horizontal direction for a spindle head that is vertically movably attached to a column.