SU1311876A1 - Device for cutting thread - Google Patents

Abstract

The invention relates to the field of metalworking, namely to devices for cutting internal and external threads during the fitting and assembly work. The purpose of the invention is to expand the technological capabilities of the device due to the possibility of cutting threads of various diameters and tags. A threading device comprises a drive sleeve 4, which is axially movable and provided with a thread shank 11 under threading ring 12. The latter has slots 13 under the stop 14 to hold the thread ring 12 from joint rotation of the drive sleeve 4, 1 Il. 3 8 ОЦ I I, / 15

Description

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The invention relates to metalworking, mainly to devices for cutting external and internal threads during fitting and assembly work.

The purpose of the invention is to expand the technological capabilities of thread-cutting devices due to the possibility of cutting threads of various diameters and pitch.

The drawing shows the device, General view.

The thread-cutting device contains guides 1 with a clamping element fixed to them in the form of a self-centering device 2 and a stand 3 carrying the driving sleeve 4 with the: tool holder 5 which cooperates with the driving sleeve through the through slots 6 of the tool holder 5 and rollers 7 drive sleeves 4, a separator 8 with balls 9 and a removable shank 11 interacting with a drive sleeve 4 via a key 10, a shank 11 with a threaded ring 12, having slots 13 under the stopper 14, and a handle 15.

The thread cutting device works as follows.

Into the internal cavity of the drive bushing 4. a replaceable shank 11 with a threaded ring 12 is installed on the key 10 with a threaded thread pitch, while the threaded ring 12 is mounted on the thread of the replaceable shank 11 until the stopper 14 enters the slot 13 of the threaded ring 12.

When the threaded ring 12 is locked, the cut piece, with the clamp of the self-centering device 2 loosened, is displaced all the way into the tool and secured. The handle 15 rotates the drive sleeve 4 together with the tool holder 5, during the rotation of which

Or S. Patrusheva 1921/13

Compiled by V. Churkin Tehred A. Kravchuk

Corre Poppy

Circulation 976 VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, Projecto st., 4

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the tool moves one step at a time.

The driving sleeve 4 with the screwed ring ring 12 is moved up to the stop of the balls 9 of the separator 8 at the end of the rack 3, after which the stopper 14 is folded back and threading is continued by self-engagement when the holder 5 is moved: - by rotating the drive sleeve 4 together with p; ring of rings 12.

The process of screwing the tool from the part is performed in the reverse order, i.e. when the stopper is folded 14 and the subsequent locking of the threaded ring 12.

Transferring to another diameter of the cut thread is done by replacing the tool. The transition to another thread pitch is carried out by replacing the shank 11 with the threaded ring 12,

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The cost effectiveness of using the device comes from reducing the auxiliary processing time.

Claims (1)

Invention Formula 30 A device for threading, comprising a drive sleeve with a tool holder and a stopper and part clamping elements, characterized in that, in order to expand the technological capabilities of the device during fitting and assembly work, the drive sleeve is installed with the possibility of axial movement and provided with a shank with threaded cutting , and the device is equipped with a threaded ring mounted on the shank with slots made on it, while the threaded ring is mounted with the possibility of interaction 45 one of the slots with a stopper. Proofreading M. Pozho Subscription