SU1211001A1 - Apparatus for cutting pipes - Google Patents

Description

. The invention relates to the processing of materials by pressure, namely, pipe cutting equipment.

The aim of the invention is to improve the quality of cutting and reliability of the device.

FIG. 1 shows a device, a longitudinal section, in FIG. 2 shows section A-A in FIG. one.

In the device corrus 1, a hollow spindle 2 is placed, which contains a drive plate 3 associated with the rotational drive, in which a radial feed mechanism of the cutting tool is arranged, made in the form of two similar helical gears. On the screws 4 of the above gears, the swivel arms 5 are fixed, each equipped with a cutting tool 6. A nut 7 is installed on one of the screws 4, and a nut 8 is mounted on the second screw 8.,.

Through the cavity of the spindle 2 passes two hollow halves 9 and 10, formed by longitudinal cutting of the solid hollow shaft along its axis of rotation into two parts.

The connection of the nut 7 with the rod 11 of the power cylinder is carried out with the help of the hollow half-shaft 9 and loosely fastened on it the bracket 12, a. The connection of the nut 8 with the body 13 of the power cylinder is carried out with the help of the second hollow half-shaft 10 and the bracket 14 which is loosely fixed on it.

To prevent rotation of the power cylinder, a guide 15 is mounted on the housing 1, the groove of which includes the rod 11.

Aa

to

12110012

On faceplate 3, there is a sleeve 16, which is a guide for the workpiece and at the same time an element that prevents contamination of the radial feed mechanism.

The device works as follows.

From a drive (not shown), rotation is transmitted to faceplate 3. Together with it, rotation of the helical gears and pivot levers 5 with cutting tools 6, as well as hollow semi-cams 9 and 10, are obtained with respect to the spindle axis.

The movement of the rod 11 of the power cylinder to the left moves the nuts 7 and 8 relative to the screws 4, causing the latter to rotate, which ultimately leads to rotation of the levers 5. Since the thread direction on the screws 4 is the same, and the direction of movement of the nuts 7 and 8 is opposite, This rotation of the levers 5 will lead to a convergence of the cutting tools 6, which corresponds to the radial feed or adjustment of the tool, the diameter of the pipe being turned.

15

20

30 Since the rod 11 and the body 13 of the power cylinder are mounted on the movable hemlock 9 and 10, the feed force developed by the power cylinder will be distributed

j evenly on cutting tools; The removal of cutting tools is carried out when the rod 11 moves to the right.

Since the rod 11 and the body 13 of the power cylinder are mounted on the movable hemlock 9 and 10, the feed force developed by the power cylinder will be distributed

evenly on cutting tools; The removal of cutting tools is carried out when the rod 11 moves to the right.

Phi 2

VNIIPI

Circulation 1000

Order 584/17 Subscription

Branch PPP Patent, Uzhgorod, Proektna St., 4

Claims (2)

1. A device for cutting pipes containing a hollow spindle with a drive plate mounted on it with the possibility of rotation from the radial feed mechanism levers equipped with cutting tools, and the drive of the radial feed mechanism in the form of a power cylinder, characterized in that, in order to improve the quality of cutting and reliability of the device, the radial feed mechanism is made in the form of nuts mounted on rods mounted on the appropriate screws, and the levers with tools are fixed on the latter, with one rod connected to the housing m of the cylinder, and the other - with its stem. 2. The device according to p. ^ Characterized in that the thrust is made in the form of two hollow half-shafts, placed in a hollow spindle.