SU1504386A1 - Device for fixing parts - Google Patents

Abstract

The invention relates to mechanical engineering and can be used to reliably fix various parts, in particular, hockey sticks. The purpose of the invention is the expansion of operational capabilities while improving the reliability of fixation. On the base element in the form of a table 1, a movable hollow body 2 is mounted inside which a spring 3 and a retainer 4 are installed with a nut 5 screwed on it. The latter is at the same time a supporting surface for an eccentric element in the form of a cam 6 mounted eccentrically relative to the wheel 7 on a rotating shaft 8 fixed in the bearing housing 9. The wheel 7 is provided with teeth and handles for rotation. The cam 6 and the housing 2 are interconnected by a pull. The point of connection of the cam to the cam is offset from its axis of rotation by a value determined by the conditions of operation. At the same time, it is possible to automate the fixation process, expand the range of geometrical parameters of the clamped parts, and also ensure self-braking of the eccentric element relative to the mating surface of the clamp after clamping the part. 2 Il.

Description

The invention relates to mechanical engineering, to devices for fixing parts, in particular hockey sticks.

The purpose of the invention is the expansion of operational capabilities by ensuring the automation of the fixation process while increasing reliability.

On fkg.1 schematically shows the proposed device, the cut; figure 2 - the same plan.

On the table 1, the hollow body 2 is mounted movably on guides (not shown), inside which spring 3 and clamp 4 are installed, with nut 5 screwed on it, which is at the same time supporting surface for cam 6 mounted eccentrically relative to wheel 7 on shaft 8 fixed in the bearing housing 9. The wheel 7 is provided with teeth or a handle for its rotation. The cam and the clamping unit are interconnected by a pull 10. The coupling point between the pu and the cam is offset from its axis of rotation by an amount determined by the conditions of operation.

The device works as follows.

To clamp the parts, you need to turn the wheel 7 half a turn, while the cam 6 also rotates 1/2 turn, the end of the pull 10, connected to the cam, forms an arc of 180, and the opposite end of the pull connected with hollow housings 2 , moves a distance of 2R, and the mxator clamps the part

The eccentricity E relative to the wheel 7 and the cam 6 makes it possible to fix the clip against self-opening. The clamping force and stroke adjust with the help of nuts 5 and springs 3. o

When the wheel is turned again through 180, the device operates in reverse order and the part is released. Using the invention simplifies

fixation mechanism because when before

5 0 5

0

5 o

five

0

Placement of the clamping unit does not require cylinders. The manufacture of the installation is much more economical. In the course of operation, energy is saved, air consumption or the need for a hydroelectric station is excluded.

This device allows the use of a part clamp with wide range of dimensions. The reliability of fixing the workpiece ensures the quality of processing.

Claims (1)

Invention Formula A device for fixing parts, comprising a base element, a clamping unit, an axially movable and spring-loaded retainer, which is kinematically connected with a rotatable eccentric element of the drive mechanism, characterized in that, in order to expand operational ones. capabilities by providing automation of the fixation process with increased reliability, it is equipped with a thrust and a toothed wheel, the clamping unit is made in the form of a hollow body, movably mounted in guides relative to the base part, the lock is installed in the body cavity and is spring-loaded relative to the latter, the drive made in the form of a rotating stepped shaft mounted on the base element, one of the steps of which is located eccentrically relative to the axis of rotation; on the stepped shaft there are mounted e, in a circumferential direction, a gear wheel and an eccentric element, the latter being located at an eccentric stage, and a kinematically connecting the movable hollow body with an eccentric element, hinged on each of them, with the point of attachment to the eccentric element is located with a certain eccentricity value relative to the axis of rotation of the stepped shaft. Editor T. Lazorenko Compiled by A. Khramtsov Tehred M. Khodanich Proofreader M. Pojo Order 5230/35 Circulation 699 VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5 Production and publishing complex Patent, g. Uzhgorod, st. Gagarin, 101 Subscription