SU1495052A1 - Arrangement for moving a movable assembly - Google Patents

Abstract

The invention relates to mechanical engineering, in particular, to cam mechanisms for feeding elements that carry, for example, a cutting tool, a workpiece, or one of the elements of the mechanism. The aim of the invention is the expansion of technological capabilities by limiting the specified movement of moving parts. A spring-loaded cylindrical cam with a groove in which a roller is mounted fixedly mounted with the pusher of the mobile unit is mounted on the shaft of the device with the possibility of axial movement. When braking the movable unit at a given point, the roller of the pusher acts on the cam and moves it, overcoming the resistance of the spring against the stop. At the signal of the braking sensor, the mobile node is stopped and the mobile node returns to its original position. Cam stop can be made in the form of an electromagnet, and the cam is mounted on the shaft freely in the axial direction. 2 hp f-ly, 4 ill.

Description

I

(21) 4050922 / 25-08

(22) 04/07/86

(46) 07.23.89. Bup. N 27

(71) Central Design Bureau for Mechanization and Automation of the Riga Scientific and Production Association TechnopriOr

(72) L.V. Roze

(53) 621.9 (088.8)

(56) .. h-TopcKoe sv1gdete.pstvo USSR. No. 806952, cl. F 16 H 25/18, 1978.

(54) DEVICE / SHCH MOVEMENTS MOBILE KNOT

(57) The invention relates to mechanical engineering, in particular to cam feed mechanisms for elements carrying, for example, a cutting tool, a workpiece, or one of the elements of the mechanism. The aim of the invention is to expand the technological capabilities of the system by limiting the specified movement of moving parts. The shaft of the device is mounted with axial movement of a spring-loaded cylindrical cam with a groove in which a roller is mounted, rigidly fastened to the pusher of the mobile unit. When braking the movable unit at a given point, the roller of the pusher acts on the cam and moves it, overcoming the resistance of the spring against the stop. At the sensor signal, the deceleration of the movable unit is stopped, and the movable unit returns to its original position, the cam stop can be executed; in the form of an electromagnet, and the cam is mounted on the shaft freely axially directed. 2 hp f-ly, 4 ill.

(L

The invention relates to mechanical engineering, in particular to cam feed mechanisms for elements carrying, for example, a cutting tool, a workpiece or one of the elements of the mechanism.

The aim of the invention is the expansion of technological capabilities by limiting the specified movement of moving parts.

Fig. 1 shows a device for moving a movable assembly, in its initial position; figure 2 - the same, at the time of stopping the mobile node; on fig.Z - section aa in figure 1; Fig. 4 is a variant of the clamping element.

The device contains a drive shaft 1, on which the Hzshindric cam 2 is mounted with axial movement with the help of a ball separator 3, slides 1 along the shaft groove and a groove on the inner surface of cam 2. The roller 4 mounted on the pusher 5 coupled to the movable unit 6, interacts with the profile groove made on the outer surface of the cylindrical cam 2.

The cam 2 is pressed by the calibrated spring 7 to the stop 8. The spring pressure is adjusted by nuts 9 and is sufficient to move the cam 5 with the movable unit 6 by the cam.

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ate N3

The mobile node 6 interacts with the brake mechanism, completed, for example, in the form of an electromagnet T a 10.

The device works as follows.

When the shaft 1 rotates, the cam 2 simultaneously rotates, pressed against the stop 8, the roller 4, interacting with the groove of the cam 2, via the pusher 5 informs the movable knot 6 a reciprocating motion.

The end point of the moving of the mobile node is determined by a sensor (not shown), which sends a signal to the brake mechanism 10, which stops the mobile node 6.

Since the shaft 1 with the cam 2 continues to rotate due to the fact that the force of the spring 7 is less than the braking force of the mechanism 10, the roller A moves the cam 2 along the axis of the shaft 1, overcoming the force of the spring 7 until the choice of the rest of the movement path of the node 6. when the mechanism is suspended, the command is given, for example, by the sensor 11 to turn off the brake mechanism 10, and the cam 2 ensures that the movable node 6 returns to its original position.

The stop 8 can be made, for example, in the form of an electromagnet, in which the core 12 with the coil 13 is fixed rigidly on the base, and the measles 14 is connected to the cam 2 by means of a radial bearing 15 mounted axially rigidly in the cam 2.

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Upon the return of the box 14 with the cam 2 to the stop, the sensor 11 is activated, the electromagnet is activated, keeping the cam pressed to the stop until the next command of the working cycle.

Claims (1)

1. A device for moving a movable assembly, comprising a shaft with a spring-loaded axially movable cylindrical cam placed on it with a groove on the side surface and a pusher mounted on the movable assembly with the possibility of interacting with the groove on the outer surface of the cam 1, characterized in that expansion of technological capabilities, the device is provided with an axial stop mounted on the shaft, designed to interact with the end face of the cam by means of a clamping element, and brake fur The anism associated with the movable organ, while the force generated by the clamping element, less effort of the brake mechanism. according to claim 1, about t l and - the fact that the presser in the form of a tared according to p, j, o t l and - the fact that the presser is in the form of electromagic /////// V /////// V 7 - J JOOOOOOOO r x5  - fZ Z222i M oooooooooooo w / 9ut.t FIG. : --her  SHShShSh FigLrj p77 -e eleven