SU925501A1 - Cone gear teeth generation method - Google Patents

Description

The invention relates to the processing of metals by pressure, in particular, to the manufacture of teeth of bevel wheels by rolling.

A device for rolling teeth of bevel wheels is known, comprising a bed, a gear rolling tool with a drive and spindles, upper and lower synchronizers, a fixture with a clamp, a rocking chair with a swing drive and a bracket mounted on it, a workpiece heating inductor placed on the bracket, and a stop [1 ].

A disadvantage of the known device is that it does not provide a constant gap between the inductor and the workpiece if its height differs from the set, for example, upon receipt of the Billet by stamping, since the rocker stop is mounted on the bed and provides a constant distance only between the inductor and the bed. The inconsistency of the gap between the inductor and the workpiece leads to different heating temperatures of the workpieces, which reduces the accuracy and quality of the bevel wheels.

The aim of the present invention is to improve the accuracy and quality of bevel wheels by ensuring a constant gap between the inductor and the workpiece.

This goal is achieved by the fact that in the device for rolling the teeth of the bevel wheels containing the frame, gear rolling tool, C. drive and spindles, upper and lower / synchronizers, a fixture with a clamp, a rocking chair with a swing drive and a bracket mounted on it, a workpiece heating inductor placed on the bracket, and a stop, a stop is placed on the bracket with the possibility of interaction with the clamp, and the bracket is mounted on the rocking chair movably in the direction of the geometric axis of the lower synchronizer.

In FIG. 1 shows a device, a General view; in FIG. 2 - node I and? FIG. 1.

A device for rolling teeth of bevel wheels comprises a bed 1, a gear rolling tool with a drive and spindles (not shown in the drawings), upper and lower 2 synchronizers, a fixture with a clamp 3, a rocking chair 4 with a swing drive c. view of the hydraulic cylinder 5 and the bracket 6 mounted on it, the bracket 6 is mounted movably in the direction of the axis 7 of the synchronizer 2. A transformer is placed on the bracket 6

925Y01

8, the inductor 9 and the emphasis 10, having the possibility of interaction with the clamp 3.

The device operates as follows.

The workpiece 11, obtained by stamping or by another method, but not subjected to preliminary turning, is installed in the fixture and secured with a clamp 3. The bracket 6 with the inductor 9 is lowered by the rocker 4 using the hydraulic cylinder 5 to the heating position until the contact of the stop 10 with the clamp 3, while the gap Δ between the inductor 9 and the workpiece 11 remains constant regardless of the height of the workpiece And, which ensures the stability of the heating temperature of each workpiece.

After heating the workpiece 11, the inductor 9 is withdrawn, and a gear, knurling tool is brought to the workpiece, with which the teeth of the bevel wheel are rolled. At the end of knurling, the knurling tool is retracted, clamp 3 releases the workpiece 14, which is removed from the device.

The device allows to ensure the stability of the heating temperature of each preparation, which increases the quality and accuracy of bevel gears.

Claims (1)

8, an inductor 9 and an anvil 10, having an opportunity to interact with the clip 3. The device operates as follows. The workpiece 11, obtained by shtampovka 5 or another method, but not subjected to pre-turning, set in the device and secured with clamp 3. Kronshtein 6 with inductor 9 is lowered with a rocking chair 4 using the U of the hydraulic cylinder 5 to the heating position until the stop 10 comes in contact with clamp 3, however, the predetermined gap D between the inductor 9 and the workpiece 11 is kept constant regardless of the height of the workpiece And, than 15, the heating temperature of each workpiece is ensured. After heating the workpiece, And the inductor 9 is retracted, and a toothed 2 rolling tool is fed to the workpiece, with which the teeth of the bevel gear are rolled. At the end of knurling, the tool is retracted, clamp 3 releases the workpiece M, which is removed 25 from the device. The device ensures the stability of the heating temperature of each billet, which improves the quality and accuracy of bevel gears. The invention of the device for rolling the teeth of bevel gears, comprising a frame, a toothed knurling tool with a drive and spindles, upper and lower synchronizers, a clamping device, a rocking chair with a swing drive and mounted on it with a brace, a workpiece heating inductor placed on the bracket, and a stop , differing from the fact that, in order to increase the accuracy and quality of processing by ensuring the constancy of the gap between the inductor and the workpiece, the emphasis is placed on the bracket with the possibility of With a clip, and the bracket is mounted on the rocking chair movably in the direction of the geometric axis of the lower synchronizer. The source of information taken into account in the examination: 1. Tselikov A. I. and others. Special rolling mills, Moscow, Metallurgists, 1971, p. 278-280, fig. 133 (prototype).