SU456689A1 - Milling machine - Google Patents

Description

The invention relates to the field of metal and other materials cutting, and is intended for making circular cuts or gaps located at any angle to the rotation of the part.

A milling machine is known, on the bed of which a stand is mounted with vertical guides for the spindle head with a tool and a round table for the workpiece. However, on such a machine, the embedding of a tool into a part can only be carried out at a right angle to the table or parallel to it.

The purpose of the invention is to implement the cutting-in of the tool at any angle to the smallpox rotation of the part when machining circular conical slits.

For this, the proposed machine is equipped with a swivel washer installed in the front part of the spindle head, on which the guides for the carriage carrying the spindle head with tool are made.

FIG. 1 shows the proposed machine, a general view; in fig. 2 - the machine, after setting up for cutting the tool into the part at a given angle, frontal.

A stand 2 with vertical guides 3 for spindle headstock 4, in the front part 5 of which a swivel washer 6 is installed and guide 7 for carriage 8, is installed on the machine stand 1 and has a spindle head 9 with tool 11 installed at the end of spindle 10 ( frezoy), the shape and dimensions of which correspond to the processed circular nroArzi or Iazu. On the spindle head, near the carriage 8, there is a 1x1, its device 12. which provides a rigid connection of the spindle head 9 with the front part of the spindle head 4. The frame 1 also has a slide 13, carrying a round table 14, whose axis lies in the same plane with the spindle axis ten.

The machine works as follows.

The spindle head 9 is turned on the carriage 8 in such a way that the schnnidol S 1H1 tool 11 mounted on the end is directed with its cutting elements at an angle equal to the angle of inclination of the cutting tool or groove. In this position, the spindle head 9 is fixed with a locking device 12 on the non-center part 5 of the head stock. After that, the pivoting plate 6 is turned in such a way that its swiveling 7 are inclined at an angle equal to the angle of inclination of the machined circular slot or groove in the workpiece. Then, the spindle 9 is fixed with its device 12 onto the carriage 8 and released from its connection with the front part 5 of the spindle head. Moving the slide 13 and the movement of the spindle head 4 along the guides 3 of the rack 2 mounted on the round table 14, the part is aligned with the working edge of the Tool 11 in the place of its surface where the circular slot or groove should pass. By twisting the carriage 8 with its guides 7, the tool 1 is driven in as it spins on the spindle 10 into the part in a predetermined direction. The circular feed of the tool is carried out by rotating the turntable 14.

Subject invention

A milling machine, on the bed of which there is a stand with vertical guides for the spindle headstock with the tool and a round table for the workpiece, characterized in that, in order to implement the tool cutting at any angle to the axis of the rotary part of the processing of circular conical cuts, a swivel washer installed in the front part of the spindle head, on which guides are made for the carriage carrying the cradle with the tool.