JPS593767Y2 - Universal milling machine - Google Patents

Description

[Detailed description of the invention] This invention combines the upper head and lower head of the spindle head by bending them by 90 degrees.
A versatile milling machine is configured to allow cutting by tilting the blade at any angle, and is configured to allow cutting in a direction perpendicular to the longitudinal direction (transverse feed direction) of the bed using a metal saw. This feature has been devised to make it convenient to use when cutting long workpieces.

The upper head and lower head of the spindle head are 45
In the so-called universal milling machine, which is bent 90 degrees at the sliding rotating surface and rotatably connected at this sliding surface, a long workpiece is cut by a metal saw in a direction perpendicular to the longitudinal direction. The runner-up was that in order to do this, a metal saw with a diameter larger than the diameter of the lower head had to be used.

This idea was proposed in view of these points, and by installing a simple gear device, it is possible to continuously cut grooves perpendicular to a long workpiece as shown in Fig. 7 with a small diameter. This was made possible using a metal saw, and the details of its implementation are as follows.

Reference numeral 1 denotes a milling machine, and an upper head 3 and a lower head 4 of a spindle head 2 are rotatably coupled at a sliding rotation surface 5 of 45 degrees, and the lower head 4 is bent downward by 90 degrees.

Reference numeral 6 designates the bed of the milling machine 1, in which the horizontal feed is large and the vertical feed is small.

Reference numeral 7 designates a milling cutter mounting plate exposed from the lower head 4 of the spindle head 2, and the rotation axis direction of this mounting plate 7 is perpendicular to the bed.

8 is a case cover that is detachable from the milling machine 1; 9
10 is an intermediate gear that meshes with the drive gear 9; 11 is a drive gear that meshes with the intermediate gear 10; and the intermediate gear 10 and the drive gear. 11 are rotatably supported within the case cover 8.

Reference numeral 12 is a key protruding from the front symmetrical position of the milling cutter mounting board, 13 is a groove into which the key 12 fits, 14 and 15 are bolt holes, and the drive gear = 9 is attached to the milling cutter mounting board 1 with a bolt 16. It will be done.

Reference numeral 17 denotes a dry shaft provided on the case cover 8 so as to be rotated by the drive gear 11. This drive shaft 17 is axially aligned with the milling cutter mounting plate 7, and has a portion exposed from the case cover 8 at its tip side. A mounting portion 19 for the metal saw 18 is provided.

20 is a mounting nut for mounting the metal saw 18 to the drive shaft 17.

This invention is based on the above configuration, and when used, the upper head 3 of the spindle head 2 is rotated 90 degrees with respect to the milling machine to reinstall it, and the lower head 4 is attached to the first
As shown in Figure 2, attach the drive gear 9 to the milling machine mounting board 7 horizontally with respect to the bed, then fix the case 8 in contact with the milling machine 1 and engage the drive gear 9 and the intermediate gear 10. With the center fixed spindle 21 fixed at the center of the lower head 4, the nut 22 is
The case 8 is fixed, and the dry shaft 17 is set so as to be located directly below the fixed spindle 21.

Note that the drive shaft 17 is parallel to the bed 6 at this time of setting.

Next, the metal saw 18 is attached to the drive shaft 17, and the workpiece a is fixed on the bed 6.
The cutting process is performed in the form shown in .

As a result, the workpiece a can be fixed with its longitudinal direction aligned with the longitudinal direction of the bed 6, so even if it is quite long, it is easy to fix it, and the length of the workpiece is By rotating the metal saw 18 in a direction perpendicular to the longitudinal direction, it is possible to cut a groove as shown in FIG. 7.

The present invention also includes a drive gear 9 from the milling cutter mounting board 7,
Since the drive shaft 17 is located directly below the milling cutter mounting board 7 via the intermediate gear 10 and the drive gear 11,
The outer shell of the lower head 4 does not interfere with machining, and there is an advantage that a small diameter metal saw can be used.

The upper head 3 and the lower head 4 are in contact with each other through a 45° sliding rotation surface 5, and by rotating on this rotation surface 4, the direction of the rotation axis of the milling cutter mounting plate 7 of the lower head 4 can be changed. This refers to the case of performing milling work, and is not directly related to the implementation of the present invention.

[Brief explanation of the drawing]

Fig. 1 is a side view of the milling machine of the present invention, Fig. 2 is a plan view of the spindle head, Fig. 3 is a front view of the spindle head, Fig. 4 is an exploded perspective view of a part of the gear, and Fig. 5 is a main part. A cross-sectional view, FIG. 6 is an explanatory view showing the meshing relationship of a part of the gear, and FIG. 7 is a perspective view showing an example of machining a long object. 1 is a milling machine, 2 is a spindle head, 3 is an upper head, 4 is a lower head, 5 is a sliding rotating surface, 6 is a head, 7 is a milling mounting board, 8 is a case cover, 9 is a drive gear, 10 is an intermediate gear, 11 is the drive gear, 12
is the key, 13 is the groove, 14.15 is the bolt hole, 16 is the bolt, 17 is the drive shaft, 18 is the metal saw, 19
is the mounting part, 20 is the mounting nut, 21 is the fixed spindle,
22 is Natsu.

Claims (1)

[Scope of utility model registration request] The spindle head 2 of the milling machine 1 consists of an up head 3 and a lower head 4, and the upper head 3 and the lower head 4 are bent downward at 90 degrees and connected, and the upper head 3 is arranged in a direction perpendicular to the axial direction of the internal spindle. In the universal milling machine, which can be freely rotated and fixed to the milling machine 1, and in which the rotation axis of the milling cutter mounting plate 7 of the lower head 4 is perpendicular to the bed,
The rotating shaft of the milling cutter mounting board 7 of the lower head 4 is oriented horizontally with respect to the bed, and a drive gear 9 is detachably attached to the milling cutter mounting board 7, and an intermediate gear 10 meshes with the drive gear 9 and an intermediate gear 10 meshes with the drive gear 9. A drive gear 11 is housed in a removable case cover 8 for the milling machine 1 and is provided facing downward from the milling cutter mounting board 7. This universal milling machine is configured such that a facing drive shaft 17 is provided on a case cover 8 and a metal saw 18 is attached to the drive shaft 17.