SU1355389A1 - Generating mechanism for gear-grinding machine - Google Patents

Abstract

The invention relates to mechanical engineering, in particular to the structures of the rolling mechanisms of gear grinding machines with slow rolling movements and fast tool movement. The purpose of the invention is to improve accuracy. The rolling mechanism includes a table 1, on the guides 2 of which the rolling carriage 3 is located, carrying the spindle 4 with the product 5 fixed on it and the rolling roller 6, which is connected by means of ribbons with the stand of belts located on the additional carriage 10 coinciding with the axis of the article 5, at an angle of ± 90 ° amp; The carriage 10 is located on the guides 11, perpendicular to the axis of the product and the direction of movement of the rolling carriage 3. On the table 1 is placed a drive shaft 12 with two cranks, which by means of two rocker stones 15 and 16 arranged in mutually perpendicular planes of variable stones eccentricities interact with the carriages, respectively, 3 and 10. The setting of the rolling mechanism consists in setting the stand of tapes to the required angle d of inclination of the tapes relative to the direction of movement of the rolling carriage 3. 2 Il. (L Fig. F co. Eed SP 05 00 CO III, T / / 7 J2 -J 7

Description

The invention relates to mechanical engineering, in particular to the structures of the rolling mechanisms for gear grinding machines.

The purpose of the invention is to improve the accuracy of gear grinding machines with slow rolling movement and fast tool movement.

Fig, 1 shows a diagram of the mechanism of rolling, general view; FIG. 2 is a view A of FIG. 1,

The rolling mechanism includes a table 1, on the guides 2 of which a rolling carriage 3 is located, carrying a spindle 4 with a sanding product 5 fixed on it and a rolling roller 6, which is connected with a strap 9 of belts 7 and 8 on an additional carriage 10 seconds the possibility of installation rotation around the axis coinciding with the axis of the product 5, at an angle i90 °.

The carriage 10 is located on the guides 11, perpendicular to the axis of the article 5 and the direction of movement of the rolling carriage 3. On the table 1 there is a drive shaft 12 with two cranks 13 and 14 fixed to it, which, by means of two eccentricities located in mutually perpendicular planes of rocker stones 15 and 16, interact through mutually perpendicular slide grooves 17 and 18 with carriages respectively 3 and 10. Since the rocker stones, the rocker grooves and the runner carriage guides and the auxiliary carriage are in mutually perpendicular planes, it is possible to move the carriage parallel to each other. ATA and additional carriage relative to each other.

The device works as follows.

The rotation of the drive shaft 12 through the crank stones 15 and 16, which interact with the rocker slots 17 and 18, are located on cranks 13 and 14 and is converted into harmonic reciprocating movements II along the guides 2 and P along the guides 11 of the table 1, rolling-in carriage 3 and additional carriages 10 implemented in mutually perpendicular planes. The magnitude of the movements P and P. is determined by

eccentricity value

-rfi

rocker stones 15 and 16. When P moves, the carriage 3 of the rolling together with it moves the spindle 4 progressively with the reference rolling roller 6 fixed on it and the product 5, which through the belts 7 and 8 receive a rotational movement. Tape 7 and 8 due to the rotation of the rack 9 are installed at a certain angle e / to the direction of movement of the carriage 3 rolling. The relative movement of the rolling roller 6 along the belts 7 and 8 is provided by matching the movements of the carriages 3 and 10, and the rolling roller is rotated both from the movement of the rolling carriage 3 and the additional rotation from the movement of the additional carriage 10,

The setting of the rolling mechanism consists in setting the rack 9 of tapes to the required angle with / tilting the tapes relative to the direction of movement of the rolling carriage 3, which is determined by the dependence

, de cos c / -,

in the diameter of the rolling product;

D is the diameter of the rolling roller; Dp; the relative movement of the rolling roller 6 — the belts 7, 8 along the tension line of the belts; the ratio of the strokes P and P, as well as the eccentricities Г j and Г of rocker stones 15 and 16 is determined by the dependence

U

IS

tga T

TO

Ui p.

P |

15

R 5i

 ft 2

This movement is provided by coordinating the movements P, 2G (at k: rag 3 and U 2G additional carriage 10, If we denote the relative movement of the rolling roller along the belts by P, then it can be determined from

P

P.

/ Cos

The proposed mechanism allows machining of gears with rolling diameters d g less than or equal to the diameter of the rolling roller D (d 5. D) in a wide range,

as the ratio of the strokes P and P of the carriages 3 and 10, determined by the required angle of inclination of the belts, is limited only by the size of the mechanism performed, and not by the principle of operation. The angle tx is set within О ± 90 °. Setting the angle o / more ± 90 ° does not expand the range, since the value of cos о is harmoniously changed from the maximum value 1 to the minimum value O within the range of the angle

7Г 0 from О to + --п and can

Claims (1)

make sense only when changing the location of the grinding wheels of the relative rolling roller to the opposite. Invention Formula The rolling mechanism of the gear grinding machine that contains the placed table guides a carriage with a spindle ;, carrying a rolling roller, connected by means of ribbons with a rotatable stand, characterized in that, in order to improve the accuracy of rolling in machines with slow rolling movements and fast movement of the tool, the rolling mechanism is equipped with an additional rotary carriage around an axis that coincides with the axis of the spindle in guides, which additionally made on the machine table perpendicular to the spindle axis, and placed on the machine table shaft with two cranks and rocker stones, made with the possibility of adjusting the value of their eccentricities I1 placed respectively in mutually perpendicular grooves, which are made in each of the carriages. Compiled by I, Kuznetsova Editor M, Kelemesh Tehred M. Diedst Proofreader L, Patay ---------- - - - Order 5744/13 Circulation 970 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab, 4/5 Production and printing company, Uzhgorod, st. Project, 4 fie.g