SU401458A1 - METHOD OF PROCESSING OF TEETH TEETH OF TEAMS - Google Patents

Description

one

The invention relates to metal working.

There are known methods for machining teeth of gear wheels with an arbitrary arrangement of their axes, according to which, when gearing with linear contact of teeth, a helical movement of a generating wheel can be arbitrary, if a screw surface with a screw parameter and an axis coinciding with screw parameter and axis of relative motion of the transmission wheels.

When machining gears with different gear ratios in a known manner, one needs a tool with a screw surface, the screw parameter and the axis of which must necessarily coincide with the screw parameter and the axis of relative motion of the transmission wheels.

The proposed method reduces the number of tool movements and simplifies cutting movements.

For this, the auxiliary surface is reproduced by one of the simplest movements of the cutting edges and is given to it by movement relative to one of the many axes of the screw-producing wheel.

The auxiliary surface is made either in the form of a body of revolution, the geometric axis of which coincides with the axis of the screw producing wheel, and it is informed

telp motion with the speed of a screw producing wheel, or in the form of a non-spinning cylinder, which form a parallel axis of the screw producing wheel,

and inform it of the rotational motion with the angular velocity of the screw producing wheel.

FIG. 1 is a diagram of the processing, auxiliary surface, performed in the form of a body of rotation; in fig. 2 - the same for a non-circular cylinder.

The axes of gears 1 and 2, rotating at angular speeds (1) 1 and nd) 2, are removed by one

from the other for a given shortest distance and intersect the node with an angle not generally equal to 90 °. As is known, the position of the axis of the screw producing wheel 3, which intersects at right angles the segment 4 of the shortest distance at the point a, is determined by the segments and the angle (And which are removed and which constitute the axis of the screw generating wheel 3 with the axles wheels 1 and 2. At the same time through any point on the segment 4 you can spend

the two axes of the propeller driving wheel, which together form a closed ruled surface enclosed between the axles of the wheels. FIG. 1 shows one axis 3, selected, for example, by structural considerations.

The auxiliary surface 5 of rotation makes only a translational movement along the selection axis of the screw producing wheel 3 with the translational speed V-j of the screw generating wheel. At the same time, the axis of rotation of the auxiliary surface 5 coincides with the axis of the screw producing wheel 3. With this absolute movement of the rotation surface 5 with the translational speed of the ultrasonic binge drop wheel, the characteristics of the auxiliary rotation surface in its movements relative to the axes of the wheels 1 and 2 will coincide with the contact line 6 surfaces of the processed teeth.

The auxiliary device 1a in the form of a non-circular cylinder (Fig. 2) performs only a rotational motion around the selected axis of the screw producing wheel with an angular velocity of the solenoid generating wheel. In this case, the rectilinear generators 8-8, 9-9, 10-10, 11-11, 12-12 and 13-13 of the cylindrical auxiliary surface are arranged parallel to the axis of the screw producing wheel. With such an absolute movement of a cylindrical nove1 with an angular velocity oj: i of a SCREW production wheel, the characteristics of the cylindrical supporting surface 7 in its movements relative to the axes of the wheels coincide with the line 4 of the contact surfaces of the teeth to be machined.

PRIORITY

Claims (3)

1. The method of machining the teeth of gears by the arbitrary positioning of their axes, which form engagement with the linear contact of the teeth, by means of a screw producing wheel and the absorbing surface, when the latter one of the simplest movements (translational or rotary), which in order to reduce the number of movements of the tool, the auxiliary surface is reproduced by the cutting edges of the tool when it conveys a nasty movement (translational or rotational), and then this surface set the movement relative to any axis of the screw production wheel. 2. A method according to claim 1, characterized in that the auxiliary surface is made in the shape of a rotational body whose geometrical axis coincides with the axis of the screw producing wheel, and imparts to it a translational motion with the speed of the screw producing wheel. 3. Snozhno n. 1, characterized in that the auxiliary surface is made in the form of a circular cylinder, which forms parallel to the axis of the production screw wheel, and gives it a rotational driving with an angular speed of a screw drive wheel. n / FIG