SU1000192A1

SU1000192A1 - Screw groove working machine

Info

Publication number: SU1000192A1
Application number: SU813367850A
Authority: SU
Inventors: Виктор Алексеевич Данилов
Original assignee: Новополоцкий Политехнический Институт Им.Ленинского Комсомола Белоруссии
Priority date: 1981-12-25
Filing date: 1981-12-25
Publication date: 1983-02-28

Description

Изобретение относитс к станкостроению и может найти применение. в машиностроении при обработке резьбовых и других изделий с винтовыми канавками, например черв ков., ходовых винтов, шнеков и т.п.This invention relates to a machine tool industry and may be used. in mechanical engineering when machining threaded and other products with screw grooves, such as screws, running screws, screws, etc.

Известен станок дл обработки винтовых .канавок дисковым режущим инструментом, содержащий шпиндель заготовки с приводом, инструментальный шпиндель с приводом и привод продольного перемещени инструмента 1.A known machine for machining helical grooves with a disk cutting tool, comprising a workpiece spindle with a drive, a tool spindle with a drive, and a drive for longitudinal movement of the tool 1.

Недостатком известного станка вл ютс узкие технологические возможноЬти ,ограниченные обработкой лишь 1винтовых канавок посто нного шага на ци (Линдрическихдетал х. Этот станок не позвол ет ,в частности,нарезать винтовые канавки на некруглых детал х, винтовые -канавки переменного шага и глуби ны.The disadvantage of the known machine is narrow technological possibilities, limited by processing only 1-screw grooves of constant pitch on qi (Lindric details. This machine does not allow, in particular, to cut the helical grooves on non-circular parts, the screw grooves of variable pitch and depth.

Цель изобретени - расширение , нологических возможностей.The purpose of the invention is to expand the scope of possibilities.

Указанна цель достигаетс тем, что станок, содержащий шпиндель., несущий .заготовку, инструментальный шпиндель,приводы обоих шпинделей,привод продольного перемещени инструмента , снабжен приводом поперечного пеоемещени инструмента и приводом его поворота относительно направлени об раОатываемой винтовой канавки, св занными с приводом шпиндел заготовки .This goal is achieved by the fact that a machine containing a spindle carrying a workpiece, a tool spindle, drives both spindles, a drive for longitudinal movement of the tool, is equipped with a drive for transverse movement of the tool and turning its drive relative to the direction of the helical groove connected with the workpiece spindle drive .

На чертеже изображена структурна схема предлагаемого станка.The drawing shows a structural diagram of the proposed machine.

Станок содержит шпиндель 1, несущий заготовку 2, продольный суп10 порт 3, поперечный суппорт 4, на котором смонтирована фрезерна или шлифовальна головка5. В головкеч смонтирован инструментальный шпиндель 6,. несущий дисковый инструмент The machine contains a spindle 1 carrying the workpiece 2, a longitudinal soup 10 port 3, a cross slide 4 on which a milling or grinding head 5 is mounted. A tool spindle 6 is mounted in the bucket. carrying disc tool

15 7, например фрезу или шлифовальный круг. Головка 5 выполнена поворотной относительно направлени обраба тываемой винтовой канавки.15 7, for example a mill or grinding wheel. The head 5 is rotatable relative to the direction of the screw groove being machined.

Станок имеет управл еглле по прог The machine has control of prog

20 рамме: привод 8 вращени шпиндел 1, привод 9 продольного перемещени суппорта 3, -привод 10 поперечного перемещени суппорта 4, привод 11 поворота головки 5 вокруг оси враще 25 ни ипиндел 1, и привод 12 вращени инструментального шпиндел 6.20 frame: drive 8 of rotation of spindle 1, drive 9 of longitudinal movement of support 3, drive 10 of lateral movement of support 4, drive 11 of rotation of the head 5 around the axis of rotation 25 or pin 1, and drive 12 of rotation of the tool spindle 6.

Claims

The drives are controlled from the system 13 of the numerical program control. The machine, except for the processing of screw grooves on fpyr30 parts, can work in the following modes: processing screw kamakovok of constant pitch on tapered summer, processing of screw grooves of variable pitch on cylindrical parts and processing of screw grooves of variable pitch on conical parts . Each of the specified CIMs can be implemented in two applications: for processing screw cages of constant or variable depth. . When replacing a disk tool with a worm gear, the proposed machine allows, in addition, to process the gears, splines, non-circular shafts and other products using the running-in method. When machining helical grooves on non-circular parts, when all drives and machine mechanisms are simultaneously involved, the drive 1-1 reports a rotational movement of tool 7 in the spindle b, which is performed with cutting speed. . Spindle 1 with workpiece 2 receive rotational motion V. from drive 8. At the same time, from drive 9 and 10, tool 7 receives longitudinal gear and lateral gear. Straight displacements, which, together with B-f rotation, ensure the screw relative motion of the tool and workpiece. The longitudinal movement P of support 3 and rotation B of the workpiece are interconnected so that during one turn of the workpiece the support 3: moves along the axis of its rotation by the step of the groove cut. To stabilize the speed of the resulting tool feed along the helix, the workpiece spindle 1 rotates at a variable angular speed. Accordingly, the movement P of the slide 3 is also carried out at a variable speed while maintaining the indicated relation between these movements. i The transverse displacement nj supprafra 4 is interconnected with the rotation In Spindle 1 In accordance with the change in the cross-sectional shape of the workpiece 2., the inclination of the helical groove cut on the non-circular part, continuously changes in accordance with the change in the radius of its cross-section. In this connection, at the same time with the listed movements for orientation of the tool (the plane of its rotation in the direction of the screw groove V to the head 5 from the actuator 11, continuous turning of Be around the axis perpendicular to the axis of rotation of the spindle 1 is reported. This movement of the head 5 is functionally connected with the rotation of the spindle 1 hook, which, regardless of the current value of the angle of inclination of the helical groove, the plane of rotation of the tool is tangent to the trajectory of its relative screw movement. The interrelation between the movements B, P, P J and provides software control system. The machine works similarly when machining screw grooves with constant AND variable depth constant and variable pitch on conical parts. / Processing screw grooves of constant pitch on cylindrical parts. the fixed head 5, while in processing the grooves with variable depth, the actuator 10 is used. The transition from one mode of operation to another is carried out by replacing the control program and changing the cutting tool. Thus, the proposed machine as compared to the base one has the technical advantage of having the transverse movement and the drive of the angular I tool orientation controlled by the drive program, which makes the proposed machine more versatile than the base one, since it allows to solve almost all tasks associated with the machining of helical grooves: machining of the helical grooves in circular and non-circular parts of constant and variable pitch, constant and variable depth. Thus, the technical and economic effect of the invention consists in a substantial increase in the universal. machine, which is one; and the main indicators of the effectiveness of any metal-cutting machine. An inventive machine for machining helical grooves with a disk cutting tool, comprising a workpiece spindle with a drive, a tool spindle with a drive and a drive for longitudinal movement of a tool, characterized in that it is equipped with a drive for lateral movement of the tool and rotation of the tool relative to the direction machined helical grooves associated with the drive spindle workpiece. . V Sources of information taken into account during the examination 1. Metal-cutting machines. Edited by N.A. Acherkan. M., Mshino, building, 1965, p. 521, FIG. W, 31c.