SU1389999A1 - Arrangement for working parts - Google Patents

Abstract

The invention relates to mechanical engineering and the technology of abrasive machining of the ends of large springs. The aim of the invention is to improve the accuracy and quality of abrasive machining of the ends of large springs. In the base 2 of the round work table, the landing pins 3 are radially arranged, the diameter of which is equal to the inner diameter of the springs being machined 4. In the disk 5, grooves 6 are made on the outer surface coaxially with the landing pins 3, which are shaped to repeat the end coil of the spring being processed 4. the periphery has a bevel 7. The base 2 and the disk 5 are rigidly fixed on the axis 8. The base 2 serves to install the device on a rotating magnetic plate 9. The disk 5 serves to fix the processed end of the spring to the maximum and a processing zone. 5 il.

Description

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The invention relates to mechanical engineering and the technology of abrasive machining of the ends of large springs.

The purpose of the invention is to improve the accuracy and quality of abrasive machining of the ends of large springs.

FIG. 1 shows the device, a general view; in fig. 2 - the same, top view; in fig. 3 shows section A-A in FIG. 2; in fig. 4 shows a section BB in FIG. 2; in fig. 5 - device at the time of installation of the spring, entering into the disk and fixing it on the pin.

The device contains a round work table 1, in the base 2 of which the landing pins 3 are radially located, the diameter of which is equal to the inner diameter of the springs 4 being processed (Fig. 3 and 5), and in the work table disk 5 on the outer surface coaxially with the landing pins 3 grooves 6 are made, which are shaped like a turn of a spiral and repeat an end turn of the spring 4 being processed, while the disk 5 has a bevel 7 circumferentially 7. The base 2 and the disk 5 are rigidly fixed on the axis 8. The base 2 serves to install the device on a rotating magnet Plate 9, for example, a typical flat grinding machine. The disk 5 serves to secure the processed end of the spring as close as possible to the treatment area.

In the disk 5, the springs to be machined are fixed in the groove along the end coils, while the depth of the groove is chosen equal to half the diameter of the rod from which the spring is made, thereby ensuring reliable support over the entire surface, simultaneously grinding all the springs by creating a machining surface on the same level.

To ensure rigidity of the installation, exclude radial displacement in the disk 5 in the center of the grooves 6 there are pins 10 (Fig. 2), the height of which is chosen structurally and is equal to half the diameter of the rod of the spring being processed. On the periphery

the disk is bevelled, and the maximum depth of the groove 6 is chosen equal to half the diameter of the rod.

The maximum approach of the end of the spring to the nearest working turn 11 is due to the bevel 7 of the periphery of the disk 5. Thus, the treated area 12 of the spring end has a reliable support over the entire surface.

The device works as follows.

0 The springs 4 to be ground are alternately mounted on the radially arranged pins 3 of the base 2 (Fig. 1 and 5) in a high 1-2 turns position, which is promoted by the bevel of the disk 5 in combination with the size of the pins 10 (Fig. 2 and 5 ) height. The springs are then screwed down until the upper ground end coil enters the groove 6, which is shaped to repeat the end coil of the spring, with the lower part

The Q of the spring is fixed to the inside diameter by a landing pin 3 (Figs. 1, 3 and 5). In the disk 5, the ends of the processed springs fixed in the grooves 6 are installed on the same level. After installing the entire set of springs, the working table of the machine is brought under the end of the abrasive wheel 13 and grinding begins.

Claims (1)

Invention Formula five A device for processing parts, containing a shaft fixed with an axially rotatable base with mounting pins, characterized in that, in order to improve the grinding accuracy of the spring ends, the device is equipped with a disk fixed with an axis aligned with the processing side of the pins located coaxially with the landing pins of the base, while on the disk coaxially with the pins are grooves in the shape of a spiral turn, and on its peripheral part from the side opposite to the treatment, the bevel is made. ten 12 FIG. 2 6 5 FIG. FIG. five