SU1761996A1 - Workpiece axial fixing unit - Google Patents

Abstract

Use: in engineering. Summary of the Invention: on the stepped shaft, axial fixation means is placed in the form of main and additional washers rigidly connected to each other by means of the shank. The washers are located on the shaft sections having a smaller diameter, and the shank covers the portion of the larger shaft diameter. The washers have an identical shape, which ensures its independent orientation on the shaft 1 з п ф-л 5 ял

Description

The invention relates to mechanical engineering and can be used in devices for axial fixation of parts.

The aim of the invention is to improve the convenience of operation due to the independent orientation of the washer on the stepped shaft while ensuring safety.

FIG. 1 shows the device assembly; in fig. 2 shows section A-A in FIG. 1: in FIG. 3 - quick washer (main view); in fig. 4 shows a section BB in FIG. 3; in fig. 5 - quick washer (view in space).

The node axial fixation of parts contains male part 1. with at least one annular shoulder 2, gripping part 3 with an axial hole 4. whose diameter d corresponds to the diameter d of collar 2 of the male part 1, and quick-release means 5 axial fixation in the form of a washer 6 with an axial cylindrical hollow shank 7. wherein the washer 6 has an axial bore 87 with a diameter di which corresponds to the diameter di1 of the male part 1 and a radial slot 9. whose width I is equal to the diameter di of the hole 8. the outer diameter D of the shank of the washer 6 is smaller its outer diameter DL and the diameter D2 of the cavity 10 larger than the diameter of the shank 7 di openings 8 washers 6.

At the free end 11 of the shank 7, the additional washer 12 is rigidly and symmetrically fixed identical to the main washer 6 of the form the covered part 1 is made with the end section 11 whose diameter da is equal to the diameter dT1 of the part 1. At the same time the main washer 6 and the additional washer 12 are placed on the covered part 1 on both sides of the collar 2 and the end 13 of one of the washers (6 or 11) is in contact with the end 14 of the female part 3

In addition, the shoulder 2 of the male part 1. At least from one of the ends 15 and 16 (clamping end 15) is made with a conical surface q and the ends facing back to the shoulder 2 are made with the surface Q, the response form of the surface q. moreover, on the shank 7 there are two diametrically opposed radial recesses 18.

The device is operated as follows.

The quick-release means 5 axial fixation is gripped by the fingers for two diameters (/

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radially opposite grooves 18 of the hollow cylindrical shank 7 and positioned so that any of the two surfaces Q, which is to be clamped, is facing the surface q, which is to be clamped by that of the two surfaces Q, which faces when clamped to it. This is followed by the clamping of one of the two mentioned surfaces Q clamping its surface q. At the same time, the relative position of the parts 1 and 3 is fixed. When compressing the parts, the quick-release means 5 is held by the radius notches 18 of the shank 7. It does not matter what the two surfaces (q and Q) of the three q, Q and Q the quick-release means 5 will be compressed, since in any case the fingers are outside the compression surfaces and the possibility of injuries is excluded.

The effectiveness of the proposed device is to increase the convenience of operation due to the independent orientation of the quick-release means on the stepped shaft. At the same time, in the proposed device, which contains a quick-release means, having a slightly increased linear extension, the presence of the same quick-release means achieves greater accuracy of its installation, which is provided by a greater extent of the surface over which this quick-release means is installed (despite the discontinuity this surface), which eliminates any distortions during its installation, as well as durability, since the proposed device contains quick-release means during has twice the total number of end faces, than the number of the end surfaces is compressed-expandable at one time or another operation. The very same factor that the device as a whole has a slightly increased

the linear extent, as well as the quick-release means contained in it, is not significant compared with the effectiveness of the device proposed.

Claims (2)

1. An axial fixation unit containing a male component with at least one annular shoulder, a female component with an axial bore, the diameter of which corresponds to the collar of the male component, and quick-release axial fixation means in the form of a washer with an axial cylindrical hollow shank, the washer has an axial bore whose diameter corresponds to the diameter of the male part, and a radial slot, whose width is equal to the diameter of the hole, the outer diameter of the shank of the washer is less than its outer diameter, and the diameter The cavity of the shank is larger than the diameter of the washer opening, characterized in that, in order to increase the convenience of operation due to the independent orientation of the washer on the stepped shaft while ensuring safety, an additional washer rigidly and symmetrically fixed on the free end of the shank, identical to the main form washer, covers the part made with an end section whose diameter is equal to the diameter of the part itself, with the main and additional washers placed on the male part on both sides of the collar, and the end ne of the washers in contact with the ends of the female part. 2. The assembly according to claim 1, characterized in that the collar of the male part is smaller: / at least one of the ends is made with a conical surface, and the surfaces of washers that are reciprocal to the shoulder are of reciprocal shape, with two diametrically opposite radial grooves on the shank. J / / 13 Figs. C Ј S FIG 4