SU573383A1 - Tool for setting and removing nipples of the automatic apparatus for centering spoke wheels - Google Patents

Description

I

The invention relates to the production of spoke wheels, in particular, equipment for the automatic centering of these wheels when they are discarded.

A known nppelevant twisting nipg sang on the outside of the rim, rigidly connected to the base of the device for centering the spoke wheels l. The axial force of the rigid nipple is perceived by the rim and therefore the wheel can be centered in this case only with a rigidly fixed rim.

A nipple driver is also known, which contains a rotational drive mechanism, a feed mechanism, a spokes and nipple catcher, js

This nipple-driver is mounted on guides with the ability to move in the direction of the spokes from the action of the hydraulic cylinder.

When moving the nipple blade in the direction of the rim, the blade of the nip-hell nut is automatically fed, and together with the body, the catch nipples fit the rim. Opposite to the hole of the latter, in the groove there is a hook, located on the inner side of the rim, a spoke-25 spoke

The spring-loaded tack is populated from the action of the hydrocylshadra.

The disadvantage of such a nipple is that the device for holding the spine in the groove of the catcher does not pinch the needle, but only holds it in the desired position in the axial direction. As a result, the axial twisting force needed to hold the blade of the screwdriver in the slot of the nipple is completely perceived by the rim. Such nipples are not suitable for automatic centering devices with active control of the shape of the rim, in which the rim must be installed in a free state. In addition, the bulkiness of the device for holding the spokes in the slots of the catcher eliminates the possibility of its use while simultaneously tightening all the nipples.

The purpose of the invention is to protect the wrap from axial twisting forces and ensure the compactness of the device.

Claims (1)

This is achieved by the fact that the nipple driver of the automatic device for centering the spoke wheels is provided with a mechanism for compensating the axial force made in the wire. a frame with a compensation bracket and a suspension consisting of a body with longitudinal grooves and hinges of a cross that are hinged in these grooves, interacting with the body through rollers and springs. FIG. 1 shows a nipple with an axial compensator, general view; in fig. 2 - view A on f8gg. one; in fig. 3 shows a section BB in FIG. 1. A nipple device consists of an electric motor with a gearbox 1, a pneumatic cylinder 2 and a piston 3, made in one piece with the hub 4. In the hub 4 a shaft 5 is installed, which has the ability to move in the axial direction with the piston and rotate relative to it. At the splined end of the shaft sits the output gear 6 of the gearbox. Between the flange 7 of the shaft and the end of the piston bushing there are balls 8. On the left side, the shaft carries the tip (screwdriver) 9c with a prefixed safety device 1O of the nipple. The nishtelevert parts are mounted on a frame with a bracket compensator 11, carrying a spy gear 12. The frame is mounted on the housing of the centering device on one side on the telescopic device 13, and on the suspension bracket with a shchugoy, which has three degrees of freedom. The suspension consists of body 14, in the longitudinal grooves 15 of which rollers 16 are mounted, which sit at the ends of the cross-axis of the spider 17. The longitudinal axis of the cross protrudes from the rear side of the body 14 and through the return spring 18 acts on the body and on the whole nickel . The case also has a slider 19, which is wired to the cross axis of the cross and to an eccentric cr - titanium 20 rack 21. A vertical feed ipoc 22 is attached to the compensation bracket, which keeps the nipple gate in an inoperative position in the lower position. This facilitates the installation of the centering collar. The Nipplevert is turned on after the installation of the co. esa and gripper spokes 12 (in the amount of vertical feed nipepeverta). During the rotational movement of the nitteverther, compressed air is supplied to the right cavity of the pneumatic cylinder. The piston 3 moves the rotating shaft 5 with a screwdriver in the direction of the rim until the screwdriver blade contacts the nipple head, which is like a stop. Upon encountering resistance from the side of the piston, the compressed air, acting on the rear wall of the pneumatic cylinder, moves it to the right together with the entire nipplevert. This movement is accompanied by compression of the return spring 18 and continues until the rim is clamped t between the screwdriver and the spokes catch. The axial force required to hold the blade of the screwdriver in the nipple slot is further perceived by the frame bracket. The rear rack; the suspension allows adjustment of the suspension point in the vertical and horizontal planes. The proposed nipple-driver creates design efforts for the automatic centering of the spoke wheels with the active control of a freely suspended rim while simultaneously positioning the eipelverts. Claims of the invention: Nippepbwaert automatic device for centering spiaev wheels, comprising a drive mechanism for rotational motion VIA, feed mechanism, spokes catch and nipple, characterized in that. To protect the rim from twisting the axial force and ensure the compactness of the device, it is equipped with an axial force compensation mechanism, made in the form of a frame with a compensation bracket consisting of a body with longitudinal grooves and a cross that is hinged in these pairs, interacting with the body through the frame in the spring. Sources of information taken into account in the examination: 1. US patent N 275953О, cl. 157-15, 1956. 2, the Federal Republic of Germany Patent No. 2О27788, cl. 63 d 5 / О2, 1970; , "about R