SU1335389A1 - Thread-cutting head - Google Patents

Abstract

The invention relates to the field of mechanical engineering and may be used for threading in aggregate machines and automatic lines. The purpose of the invention is to improve the accuracy of the thread being cut in depth by quickly and accurately stopping the spindle at the end of the thread cutting cycle. The stop mechanism of the spindle contains a sleeve 20 with a protrusion on the outer surface. Mounted on the front end of the spindle 3, an adjusting screw 21 fixed to the quill 2, an emphasis 22 made in the form of a two-arm lever fixed on the body of the thread-cutting head, one arm of which interacts with the adjusting screw 21, and the other with the protrusion of the sleeve 20. At the end of the working stroke, the adjusting screw 21 presses on one shoulder of the spring-loaded stop 22, while the other shoulder of the stop interacts with the protrusion of the sleeve 20, stopping the spindle l 3. 2 ill. (L 2.2ft

Description

The invention relates to mechanical engineering and can be used for threading in aggregate machines and automatic lines.

The purpose of the invention is to improve the accuracy of the thread being cut in depth, which is achieved by quickly and accurately stopping the spindle at the end of the thread cutting cycle.

FIG. 1 shows threading head, slit; in fig. 2 is a view A of FIG. one.

The threaded head includes a housing 1 in which a quill 2 is placed, a spindle 3 on bearing supports 4. At the splined end of the spindle 3. A screw 5 is fixed, fixed by a pin 6, which is in connection with a nut 7, which is connected with gear 9. The spline end of the spindle 3 is in connection with the shaft 10 installed in the bearing 10

15

20

gtinoli 2 connected to the rail, which interact with the finisher 25 and reverse the electric motor 15. The head works with a reobsoonment, as follows.

By switching on the electric motor 15 through gears 14, the belt gear 13 and the splined coupling of the shaft 10, the rotation is transmitted to the spindle 3. From the shaft 10 through the gears 16-18 and 9, the nut 7 and the screw 5, the n 2 is moved with the spindle 3, the pinola 2 is in meshing with gear wheel 2A on the shaft of which two stops 23 are installed, interacting with the finisher 25. At the end of the working stroke, the adjusting screw 21 fixed on the quill 2 presses one shoulder along the spring stop 22, while the other shoulder of the latter interacts with the protrusion sleeves 20, stopping spy del 3, wherein one of the abutment

thirty

35

pax 11, at the splined end of which, at-25 23 presses the tip, which is the friction clutch 12, the housing of the friction clutch 12 by means of a belt drive 13 and gears 14 is connected to an electric motor 15. On the shaft 10 there is a replaceable gear 16, which through gears 17 and 18, mounted on shaft 19, is connected to gear 9 of nut 7.

The spindle stop mechanism consists of a bushing 20 with a protrusion located on the front end of spindle 3, an adjusting screw 21 fixed on quill 2, an emphasis 22, which is made in the form of a two-arm lever and fixed on the body of a thread-cutting head, one arm which interacts with an adjusting screw 21, and the other shoulder with a protrusion of the sleeve 20. The distance between the end face of the sleeve 20 and the shoulder is emphasis 22 0.5 cm.

The axial movement of the quill 2 with the spindle 3 is determined by the stop 23 mounted on the gear shaft 24,

40

45.

gives the command to reverse the engine 15 and return the quill to its original position.

Claims (1)

Invention Formula The threading head contains a body in which the pinol and kinematically connected spindle are placed, the drive of its rotation and axial movement and the stop spindle mechanism, which is characterized by the fact that the head has sleeve with a protrusion on the outer surface mounted on the spindle, an adjusting screw fixed to the quill and an emphasis made in the form of a spring-loaded two-arm lever, one arm of which is intended to interact with the adjusting screw, and the other with the protrusion of the sleeve. five 0 connected to the rail gtinoli 2, which interact with the finisher 25 and reverse the electric motor 15. Recreation of the head works as follows. By switching on the electric motor 15 through gears 14, belt drive 13 and splined coupling of shaft 10, rotation is transmitted to spindle 3. From shaft 10 through gears 16 to 18 and 9, nut 7 and screw 5, movement of pinoli 2 with spindle 3 occurs, pinola 2 is in meshing with gear 2A, on the shaft of which there are two stops 23, interacting with the finisher 25. At the end of the working stroke, the adjusting screw 21 fixed to the quill 2 presses one shoulder of the spring-loaded stop 22, while the other shoulder of the latter interacts with the protrusion of the sleeve 20, stopping Spindle 3, one of the stops 23 presses the tip which gives the command to reverse the engine 15 and return the quill to its original position. Invention Formula The threading head contains a body in which the pinol and kinematically interconnected spindle are placed, the drive of its rotation and axial movement and the stop mechanism of the spindle, differing so that, in order to increase the accuracy of the cut thread in depth, the head is provided with a sleeve with a protrusion on the outer surface mounted on the spindle, an adjusting screw fixed to the quill and an emphasis made in the form of a spring-loaded two-arm lever, one arm of which is intended to interact with full-time screw, and the other - with a sleeve projection. bida Editor I. Shulla Compiled by A. Klimov Tehred M.DiDyk Order 4004/13 Circulation 974. Podlisnoe VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4 Proofreader M. Sharoshi