SU1590207A1 - Inserted blade milling cutter - Google Patents

Abstract

The invention relates to metal cutting, namely to cutting heads, which can be used, for example, to machine the end surfaces of flared pipe ends. The aim of the invention is to simplify the design of the head by eliminating the copy mechanism. The head includes a housing 1 with a shank 2. A tool holder 3 is mounted in inclined body guides, kinematically connected by means of a rack and pinion gear 5 with a spring-loaded slider 6 with a center 8. A ring 11 and an adjusting nut 14 are installed on the outer surface of the body. 12 are positioned in the slots 13 of the housing with the possibility of engagement with the rear end of the slider 6. The head is installed in the spindle, and the part is fixed on the caliper of the pipe-flaring machine. When the caliper is moved, the part 9 rests against the center 8 and during the rotation of the head moves the slider, which through the rack and pinion gear moves the tool holder. The processing is carried out until the pins stop at the end of the slider. The required machining size is adjusted by means of the nut 14. When the caliper is retracted, the holder and slide are returned to their original position by the action of the spring 7. 2 sludge.

Description

(54) CUTTER HEAD (57) The invention relates to the processing of metals by cutting, namely to cutter heads that can be used, for example, to process the end surfaces of the flared ends of pipelines. The aim of the invention is to simplify the design of the head by eliminating the copier mechanism. The head contains a housing 1 with a shank 2. A tool holder 3 is mounted in the inclined guides of the housing 4, kinematically connected via a rack gear 5 with a spring-loaded sprocket 6 with a center 8. On the outer surface of the housing, a ring 11 and an adjusting nut 14 are installed. The pins 12 installed in the ring placed in the grooves 13 of the housing with the ability to interact with the rear end of the crawler

6. The head is mounted in the spindle, and the part is fixed to the support of the pipe-rolling machine. When moving the caliper, the part 9 abuts against the center 8 and, during the rotation of the head, moves the crawler, which moves the tool holder through the rack and pinion. Processing is carried out until the pins stop in the end of the crawler. The required processing size is adjusted using § nut 14. When the caliper is retracted, the holder and the crawler return to their original position under the action of the spring 7. 2 ill.

SU „„ 1590207/2

φίίΐ ί

The invention relates to the processing of metals by cutting and can be used, for example, for processing the end surfaces of the flared ends of pipelines.

The aim of the invention is to simplify the construction of the cutting head by eliminating the copier mechanism.

In FIG. 1 shows a cutting head, general view; in FIG. 2 - section A — A on: FIG. one.

The cutter head contains a housing 1 with a shank 2, intended for mounting in the spindle of the machine.

A holder 3 of a tool 4 is mounted in the inclined guides of the housing, kinematically connected by means of a rack gear 5 with a spindle 6 installed in the axial bore of the housing. A spring 7 is installed between the end of the axial bore in the spindle and the bobbin, and with on the opposite side, a center 8 is mounted for rotation to center the workpiece 9. To reduce friction, a ball 10 is installed in the hole of the center 8. On the external threaded turn In the case of the housing, it is possible to axially move the ring 11 with the radial pins 12 located in the longitudinal grooves 13 of the housing with the possibility of interacting with the end face of the sprocket 6. On the threaded surface, the adjusting nut 14 is installed with the possibility of interaction with the ring 11. by means of pin 15 and strap 16. The head is mounted on the spindle of a tube-flaring machine and a support is brought to it with a machined part (pipe) fixed to it 9. When the emphasis of the center 8 in the pipe, the slider 6 moves and through the rack and pinion moves the holder towards the surface to be machined and at an angle equal to half the angle of expansion of the cone of the pipe. In the process 5 of rotation of the head, the end face is trimmed and the sharp edges of the pipe are dull until the pins 12 abut against the end of the crawler. The stop moment and, consequently, the machining size is regulated by the nut 14. When the caliper is retracted, the crawler 6 under the action of the U spring 7 moves in the direction of the part (pipe) withdrawal and moves the holder 3 to the initial position through the rack and pinion transmission.

Claims (1)

15 claims A cutting head containing a housing with a shank, a tool holder mounted in inclined guides of the housing and kinematically connected by means of a rack and pinion with a cushion spring mounted in the axial hole of the housing and mounted on the outer surface of the housing with the possibility of axial displacement elements, characterized in that, in order to simplify the design, a blind axial hole is made in the creep from the opposite side to the spring, in which is mounted with the possibility of rotation, a center introduced into the head for centering the workpiece, and thrust ring elements are made in the form of radial pins placed in longitudinal grooves made in the housing with the possibility of interaction with the end face of the crawler located on the side of the spring, while on the outside A thread is made on the housing surface, on which an adjusting nut introduced into the head is installed with the possibility of interaction with the ring.