SU1053973A1 - Boring head - Google Patents

Boring head Download PDF

Info

Publication number
SU1053973A1
SU1053973A1 SU813317409A SU3317409A SU1053973A1 SU 1053973 A1 SU1053973 A1 SU 1053973A1 SU 813317409 A SU813317409 A SU 813317409A SU 3317409 A SU3317409 A SU 3317409A SU 1053973 A1 SU1053973 A1 SU 1053973A1
Authority
SU
USSR - Soviet Union
Prior art keywords
boring head
boring
cutting blade
productivity
cutting
Prior art date
Application number
SU813317409A
Other languages
Russian (ru)
Inventor
Николай Федорович Уткин
Виталий Викторович Григорьев
Николай Семенович Силин
Михаил Николаевич Коростелев
Original Assignee
Ленинградский Ордена Красного Знамени Механический Институт
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ленинградский Ордена Красного Знамени Механический Институт filed Critical Ленинградский Ордена Красного Знамени Механический Институт
Priority to SU813317409A priority Critical patent/SU1053973A1/en
Application granted granted Critical
Publication of SU1053973A1 publication Critical patent/SU1053973A1/en

Links

Abstract

BORING HEAD by ed. St. No. 776766, which means that in order to increase the productivity and quality of processing, the holder is provided with a second cutting blade, which is diametrically opposed to the first one on the same circle.

Description

This invention relates to metalworking and can be used for boring operations and holes in lengthy parts such as pipes. According to the main auth. No. 776766 is a known boring head having a plate with one cutting blade. On the floating plate diametrically cutting blade mounted support element Q. The disadvantages of this head are the low productivity and quality of processing due to the presence of one cutting blade, which re-takes all the force effect that occurs during cutting. The purpose of the invention is to increase the productivity and quality of machining. The goal is achieved in that the holder is equipped with a second cutting blade located diametrically opposed to the first one on the same circle in the boring head. This leads to the fact that the boring head combines the best sides of two processing methods: the method of dividing the thickness of the slice, which is characterized by high productivity, but low quality of the hole and the method of dividing the width of the slice, which provides about The quality is high, but the productivity of this method is low. Such a constructive solution ensures an increase in the indices of the proaeccai, the accuracy of the hole for drift and non-linearity of the axis, as well as the accuracy of the diametrical dimensions, the surface roughness decreases, the tool life and cutting modes are enhanced. FIG. shows a section aa in figure 2; in fig. 2 - view B ka of fig .; in fig. 3 - tool holder; figure 4 is a view In fig.Z; in fig. 5 diagram of radial forces. The boring head consists of a hollow body 1, a node for fastening it to a boring bar, a floating holder 2 installed in a groove with cutting blades 3 and 4 and a supporting element 5. The boring head is provided with pins 6 and 7 fixed to the outer surface of the body I. Cutting blade 3 sharpened with the main angle in terms of C, and the cutting blade 4a, and &iP; q rt 2- “ctgs where t is the seam allowance, mm; 5 - feed boring head, mm / rev. The tops of the blades are located on the same circumference equal to the diameter of unpacking. The proposed boring head works as follows. When boring the workpiece, rotation is reported, and the boring head mounted on the boring bar by means of the attachment unit receives translational feed motion. The filling of the boring head of the axle is realized either by the filling hole or by means of a special device for filling. When cutting metal due to the difference between the main angles in terms of cutting blades 3 and. 4, a radial component A Pm-Pq-i H arises, under the action of which the constant contact of the holders 2 through the supporting element 5 with the surface of the machined hole is made. The tangential components of the cutting forces, ,, and P are perceived by the fins 6 and 7 fastened on the frame. When oscillations occur, the boron-, w-angi caused by the unevenness of the removed allowance for the circumference of the circumference, the holder 2 does not participate in the oscillatory movement of the head body, it is constantly pressed against the bore portion of the hole. The use of the proposed invention will allow to increase the productivity of processing by 80-85%, to increase the accuracy and purity of the surface by 70-75%.

Claims (1)

  1. BORING HEAD by ed.
    St. No. 776766, it is clear that in order to increase productivity and processing quality, the toolholder is equipped with a second cutting blade, the location is diametrically opposite to the first on one circle.
    FROM CO
    SJ (rig. F>
SU813317409A 1981-07-15 1981-07-15 Boring head SU1053973A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU813317409A SU1053973A1 (en) 1981-07-15 1981-07-15 Boring head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU813317409A SU1053973A1 (en) 1981-07-15 1981-07-15 Boring head

Publications (1)

Publication Number Publication Date
SU1053973A1 true SU1053973A1 (en) 1983-11-15

Family

ID=20969102

Family Applications (1)

Application Number Title Priority Date Filing Date
SU813317409A SU1053973A1 (en) 1981-07-15 1981-07-15 Boring head

Country Status (1)

Country Link
SU (1) SU1053973A1 (en)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
°1. Авторское свидетельство СССР 776766, кл. В 23 В 29/03, 1973 (прототип).. *

Similar Documents

Publication Publication Date Title
SU1053973A1 (en) Boring head
US3164039A (en) Internal tube finishing machine
US2711664A (en) Boring head
US2389858A (en) Toolholder assembly
SU878420A1 (en) Rotating cutting tool
JP2002178203A (en) Tool for cutting/machining
US3144795A (en) Tool
US2190492A (en) Expansible cutter
CA2076335A1 (en) Precision Depth Spindle
GB2010708A (en) Rotary bore cutting tools
US744725A (en) Tool-holder.
RU2125505C1 (en) Boring chuck
EP0297133A1 (en) Cam lock for tool elements
US1097318A (en) Cylinder-reboring device.
US2170590A (en) Tool-holding device
US2867440A (en) Floating reamer or tap holder
SU1194589A1 (en) Boring apparatus
SU1426702A1 (en) Arrangement for boring holes
SU1308440A1 (en) Thread-cutting head
JPH0288108A (en) Micro boring head
GB842167A (en) Improvements in apparatus for turning and boring cylindrical bars or holes
SU1296311A1 (en) Tool for working deep bores
SU615214A1 (en) Cutter holder
RU2053048C1 (en) Boring chuck
KR900000135B1 (en) Controllable perforating device