SU870024A1

SU870024A1 - Apparatus for cutting thread

Info

Publication number: SU870024A1
Application number: SU792831754A
Authority: SU
Inventors: Феликс Николаевич Канареев; Сергей Петрович Машин; Александр Олегович Харченко
Original assignee: Севастопольский Приборостроительный Институт
Priority date: 1979-10-25
Filing date: 1979-10-25
Publication date: 1981-10-07

Description

(54) УСТРОЙСТВО ДЛЯ НАРЕЗАНИЯ РЕЗЬБЫ(54) DEVICE FOR THREAD CUTTING

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Изобретение относитс к станкостроению и может быть использовано в специальных станках, агрегатных станках, станках-автоматах и автоматических лини х, где производитс обработка резьбовых отверстий.The invention relates to a machine tool industry and can be used in special machines, aggregate machines, automatic machines and automatic lines where machining of threaded holes is made.

Известно устройство дл нарезани резьбы, включающее шпиндель, резцедержатель и резьбовый копирр ,A threading device is known, comprising a spindle, a toolholder and a threaded copier,

Недостатками известного устройства вл ютс низка производительность и низкое качество нарезаемых резьб.The disadvantages of the known device are low productivity and low quality of the cut threads.

Цепью изобретени вл етс увеличение производительности процесса обработки резьбовых отверстий и повышение качества нарезаемых резьб.The chain of the invention is to increase the productivity of the machining process of the threaded holes and improve the quality of the cut threads.

Дл этого устройство снабжено гильзой с закрецленными на ней роликами , установленной с возможностью качани в пиноли, на которой установлен пневмоцилиндр, причем на поршне пневмоцилиндра выполнены копирные пачы , взаимодействующие с роликами.For this, the device is equipped with a sleeve with rollers closed on it, installed with the possibility of swinging in quill shells, on which a pneumatic cylinder is mounted, and on the piston of the pneumatic cylinder there are copier packs interacting with the rollers.

1а фиг.1 изображено предлагаемое Устройство дл нарезани резьбы по вихревому методуJ на фиг.2 - сечение А-А фиг.1; на фиг.3 - сечение Б-Б1a of FIG. 1 shows the proposed Vortex Cutting Device in FIG. 2 — section AA of FIG. 1; figure 3 - section bb

фиг.1.figure 1.

Claims

The device comprises a spindle 1 installed rotatably in the sleeve 2. The sleeve 2 is connected to the pin 3 via two centers i, the axes of which are perpendicular to the axis of the spindle 1, Pinol 3 with its front part interacts with the threaded surface of the copier 5 fixed in the housing 6. In the rear part, pinions 3 and a gear wheel 7 and an air cylinder 8 with pneumatic actuators 9 and 10 are installed. The piston 11 is in contact with two rollers I2, installed in a sleeve

2. The nuts 13 are screwed on the piston 11. In the front part of the spindle 1, there is a tool holder 14 with a cutter 15, the workpiece 16 is being fixed. The device works as follows. Spindle 1 with tool holder 14 and cutter 15 is associated with rotation. At the same time, the quill 3, in which the liner 2 with the spindle 1 is mounted eccentrically, rotates from the wheel 7, receives an axial movement from the copier 5 in the direction of the part 16, equal to the pitch of the cut thread for each quill rotation. The axis of rotation of the quill coincides with the axis of the machined hole in the part; | w 16. Together with the quill 3, the pneumatic cylinder 8 rotates and moves, the piston of which is in the extreme right position under the action of the compressed spirit roses that have come along the pneumatic actuator 9 into the left cavity of the cylinder. In such a state, the piston 11, with its copy slots by means of rollers 12; the sleeve 2 is held with the spindle 1 and the cutter 15 in the working position until the thread in the .16 part is not cut to the desired length. After this, the track switch is triggered, the key in the drawings is not shown. The valve is shown switching to pneumoma. the hysterests and liftings are fed into the first cavity of the cylinder 8, moving the piston 11 to the extreme left position. As a consequence, with the help of rollers 12, which interact with the grooves of the piston 1Ij, the blade 2 is rotated with the spindle 1 and the tool holder 14 relative to the axis of the centers 9 and the cutter 15 is thereby withdrawn from the cut thread. Working stroke ends. After this, the spindles with the spindle are reversed to move until the track 44 reverse switch is activated - air is fed into the left cavity of the cylinder 8, piston 1I returns to the right and the device is set in the initial position again. The thread is cut in one pass. Such a device solution for threading allows threading; Improve the performance of the threading process by means of the vortex method by a factor of 10-12 compared with multi-pass cutting to improve the quality of the cut threads by increasing tool cost, since the cutter is in contact with the workpiece for a short time and the rest of the time is cooled. Claims The device dp threading, including a spindle, a tool holder and a threaded copier, is characterized in that, in order to improve the performance and quality of processing, it is provided with a sleeve with rollers fixed on it, installed with a possibility of swinging in the quill thimble on it. a pneumatic cylinder is installed, and on the piston of the pneumatic cylinder there are copier grooves interacting with the rollers. Sources of information taken into account in examination 1, I. Shevlkov. and Melnichenko V.D. Processing of parts on aggregate and special machines. -M., Mechanical Engineering, 1971, p. 136, Fig.79

FIG. g

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