SU1641533A1 - Gear-slotting machine - Google Patents

Abstract

The invention relates to machine tools. structure, in particular, to gear-shaping machines for machining cylindrical gears under rolling conditions during tangential incision movement. The aim of the invention is to increase the productivity and accuracy of processing. On the frame of the gear-posting machine there is a longitudinal

Description

The invention relates to a machine tool industry, in particular to gear-shaping machines for machining spur gears under rolling conditions for tangential penetration.

The purpose of the invention is to increase productivity and machining accuracy by combining the installation time of the part with the previous treatment and ensuring the same dimensional wear conditions on both side edges of the embedment and the same chip formation conditions on both dividing tables.

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The drawing shows the kinematic diagram of the machine.

On the frame (not indicated) of the gear-shaping machine, a longitudinal table 1 is placed, carrying divider tables 2 3 and mounted with the possibility of moving a tangent incision P in the plane of the axes of the divider tables and relative brakes. On the longitudinal table 1, parallel to the direction of the tangential incision P, the gear rail 4 is fixed, in engagement with which is the gear wheel 5. The longitudinal table 1 and the divider tables 2 and 3 are connected by means of a rolling chain. This chain includes a gear rail 4, a gear wheel 5 (rack and pinion gear), a guitar of interchangeable gears 65, an input 7 of the summing mechanism 8, an output 9 of this mechanism, a transmission 10, after which the chain splits into two parallel sections - a telescopic shaft 11 gear 12, dividing table 2 and telescopic shaft 13, gear 14, dividing table 3.

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The drive of the longitudinal table 1 is made in the form of a symmetric hydrocylinder 15 of double action, mounted in parallel, a rack 4.

The pitch tables 2 and 3 are connected by a chain 16 of the rolling wheel, which engages a pair of gears, with a spindle 16 of the standard chuck 17. This chain includes gears 18, 19, a guitar of interchangeable gears 20, an input 21 of the summing mechanism 8 and further from this mechanism to divider tables 2 and 3 section | common with a chain of rolling-longitudinal table | 1 - divisive tables 2 and 3.

The drive of the reciprocating motion of the bit 17 includes a motor 22, a drive shaft 23, and a linking mechanism 24.

The drive of the circular feed of the spindle 16 bit contains a body 25 for setting on a circular feed, for example, a guitar of replaceable gear wheels or a feed box, a reversing mechanism 26 and gears 19 and 18 "

The interchangeable gears 6 and 20 guitars are used for rolling chains. The first of them coordinates the movement P of the tangent embedding of the longitudinal table 1 with the rotations of B of the separating tables 2 and 3 at the embedding stage. The second guitar aligns the rotation of the Dolby 17 with the rotations of the В ± separator tables 2 and 3 in the profiling stage.

The feed of the tangential embedment P is set by an adjustable throttle in the control system of the hydraulic cylinder 15. The circular feed is provided by the adjusting member 25.

The machine works as follows.

On one of the dividing tables 9 for example 2, set the workpiece. Then, by movement P, the longitudinal table 1 moves in an accelerated way from the initial arbitrary position to the position of the plunging stage. After that, the hydraulic cylinder 15 switches to the feed rate of the plunging in motion P (. At the same time, the knockout 17 communicates a constant-return movement P, - and a circular feed B ,.

As a result, at the embedding stage, the dividing table 2 simultaneously participates in two movements: movement B, coordinated with movement P (longitudinal table 1, and movement B4, coordinated with movement B of the blade 17.

The embedding period lasts until the plunging 17 penetrates the tooth height of the wheel to be machined. After this, the movement P and the movement coordinated with it cease.

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At the end of the embedding stage, during the full rotation of the dividing table 2, the second stage of processing, wheel profiling, is carried out in a coordinated motion between the slot 17 and B of the divider table 2.

At the profiling stage, when the longitudinal table 1 is stationary, a blank is placed on the separating table 3, for example, using an industrial robot or a manipulator built into the machine.

At the end of the profiling, the movement P stops and the dolby to 17 is brought to the extreme upper position. Then, using the hydraulic cylinder of the longitudinal table 1 in motion P, an accelerated course is reported to the position of the embedding stage for machining the workpiece on the separating table 3. Simultaneously with the start of motion P, the B2 movement starts - 3.

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After moving the dividing table 3 to the position of the embedding stage, the hydrocyles 15 switches to the infeed feed rate. At the same time, the reversible fur 26 is switched to provide the change in the rotational direction of the rotation of the blade 17 in the movement B, and the movement of the P5 dolb and the movement 64 of the separating table are included. As a result, the processing cycle is repeated on the separating table 3, and There is a removal of the processed wheel installation of the new workpiece.

Thus, the machining of the gear wheels on the dividing mills 2 and 3 takes place on the machine. At the same time, the same machining conditions are provided on each table, and the grooves alternately change the output and the cutting edges of its teeth.

Claims (1)

25 claims Gear-shaping machine, on the bed of which a longitudinal table mounted relative to the spindle is placed A 30 groove, equipped with a circular feed drive, with the possibility of a tangent embossing, carried out by a hydraulic cylinder, carries a dividing table, which is kinematically connected to it through a gear-rack drive, to fix the workpiece that differs from In order to increase productivity and accuracy, the machine is equipped with a second dividing table mounted on a longitudinal table in the plane of its tangential incision and kinematically connected to it and to the first dividing table with the hydraulic cylinder Kasa The incision is placed parallel to the rack and pinion of the rack-and-pinion gear and is made in the form of a cylinder with two hundred-third action, and in the drive there is a circle JQ out feeds installed reversing mechanism introduced in the nok. 35 40 45 littel table 1 Compiled by V. Slitkova  Editor S. Lisin Tehred M. Morgental Proofreader A. Obruchar Order 2862 Circulation 421Subscription VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5 After moving the dividing table 3 to the position of the embedding stage, the hydrocyles 15 switches to the infeed feed rate. At the same time, the reversing mechanism 26 switches in order to change the direction of rotation of the chisel 17 into movement B, and the movement P5 of the chisel and movement 64 of the dividing table 3 turn on. As a result, the processing cycle is repeated on the dividing table 3 and removing the machined wheel and installing a new blank. Thus, the machining of the gear wheels on the dividing mills 2 and 3 occurs on the machine. At the same time, the same machining conditions are provided on each table, and the input and output cutting edges of its teeth alternate at the table. Invention Formula Gear-shaping machine, on the bed of which is placed a longitudinal table mounted relative to the spindle a die with a circular feed drive, with the possibility of a tangential insertion carried out by a hydraulic cylinder, l carrying a dividing table kinematically connected to it through a rack-and-pinion gear, designed to secure the workpiece, in order to increase productivity and machining accuracy, the machine is equipped with a second dividing table mounted on a longitudinal table in the plane of its tangent embedding and kinematically connected to it and to the first dividing table, while rotsilindr biting into tangent placed parallel toothed rack and the rack gear is formed as a double-acting cylinder, and the actuator installed circular feed introduced into the machine reversing mechanism.