SU1186472A1 - Wood-working machine spindle unit - Google Patents

Abstract

SPINDLE KNOT OF WOODWORKING MACHINE, including a spindle mounted on bearings in a sleeve, which is housed in a housing, characterized in that, in order to improve the accuracy of setting up the machine, the bearing axes are located in the sleeve at an angle to its axis, and the sleeve is installed in the housing with the possibility of turning around its axis. (L 00 about 4 tC

Description

The invention relates to the woodworking industry, in particular to woodworking milling machines with a lower location of the spindle and quadrilateral longitudinal milling.

The purpose of the invention is to improve the accuracy of the setting machine.

FIG. 1 shows a diagram of the spindle assembly, a section; in fig. 2 - the position of the spindle assembly when machining parts on the machine; in fig. 3 is a view A of FIG. 2

The spindle assembly contains a sleeve 1, in which the spindle 3 is mounted at an angle OS to its axis in rolling bearings 2, on its upper part there is a milling cutter 4, on the lower part there is a drive pulley 5. A sleeve 1 is installed in a cylindrical bore of the spindle assembly 6. On the outer surface of the liner

A crown gear 7 is cut, in engagement with which a gear wheel (or a screw c) 8 is mounted, mounted on a shaft 9 mounted in case 6 without the possibility of axial displacement. A scale 10 is fixed on the upper end of the sleeve 1. The case 6 is mounted on the bed

The second machine on which the table 12 is mounted also serves as the base surface for feeding the workpieces 13 during milling.

Spindle node works as follows.

By rotating the shaft 9 through the gear 8 and the ring gear 7, in the case 6, the sleeve 1 is rotated around its axis. With

In this case, the spindle 3 with the cutting tool 4 will describe, in space relative to the axis of the sleeve 1, a conical surface with an apex angle equal to 2a. Turn

the sleeves 1 are made until a right angle is provided between the base surface of the table 12 and the axis of the spindle 3 in the direction of the feed vector of the workpiece 13, i.e. until the axes of the spindle 3 and the liner are inserted into a plane parallel to the workpiece surface to be machined. In this case, instead of purely longitudinal milling of wood, a transition to longitudinal-transverse milling will be observed, since in the machined plane the axis of the milling cutter 4

The angle between the fibers of the wood will not be 90 °, but 90 ± l due to the inclination of the cutter axis. The angle oc is 2-3 °.

By turning the sleeve 1 relative to the body 6, controlling the required angle on a scale of 10, the test

billets, achieving their desired machining accuracy.

Due to the wear of the bearing supports and the reduction of the rigidity of the assembly, the upper part of the spindle with the cutting tool during rotation forms a conical surface, which makes the treated surface non-perpendicular to the base and release of defective parts, and turning the liner compensates for this technological error, which improves the tuning accuracy machine tool.

f3 c.

BUT

Type A

2

Fig.d

Claims (1)

A SPINDLE ASSEMBLY OF A WOODWORKING MACHINE, including a spindle mounted on bearings in a sleeve that is housed in a housing, characterized in that, in order to improve the accuracy of the machine setting, the axes of the bearings are located in the sleeve at an angle to its axis, and the sleeve is rotatably mounted in the housing around its axis. Fig.)