SU1234056A1 - Device for setting and securing work - Google Patents

Description

The invention relates to machining and can be used when installing and fixing parts on machine tools.

The purpose of the invention is to expand technological capabilities by combining the installation process and securing the parts to be processed.

FIG. 1 shows a device for mounting and securing parts, a general view; figure 2 - section aa in figure 1; in fig. 3 - device in the loading position.

The device contains a hollow body with a cylindrical sleeve 2, which is placed in its groove, fitted with gears with a crown 3 and mounted on bearings 4. In slot 5, sleeves 2 on axis x 6 are installed with the possibility of rotation of pressure 7 and thrust 8 working jaws between which pin 9 is fixed the spring 10 is made in the form of an equal-arm lever, the ends of which have the ability to interact with the facing surfaces of the arms 7 and 8.

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The housing 1 also contains a copier 1 i with a spherical working surface 12, the radius of which, from the condition of a parallel rotation of the working jaws, is set equal to the radius of rotation of the axes 6 relative to the housing 1, and the slider 13 of the pneumo-hydraulic actuator (not shown) rigidly connected with wedge pusher 14 and by means of an elastic element 15 / with a toothed rack 16 installed in the housing bore, spring-loaded with an elastic element 17 relative to the adjusting screw 18 and kinematically connected to the gear crown 3 of the bushing 2. In this case the wedge Spruce 14 of its tapered surface 19 and the cam 11 by a spherical surface 12 are engageable with radiused surfaces 7 provided on the push and thrust 8 working jaws respectively. On the press working sponge 7 a screw limiter 20 is mounted to move the winding part 21.

The device works as follows.

In the initial position (Fig. 3), the slider 13 and the wedge pusher 14 are shifted to the left so that the beveled surface 19 of the latter releases the pressure sponge 7, as a result of which, under the influence of the spring 10, the sponges rotate around their axes by some angle, thereby increasing the distance between mounting and clamping surfaces. In this position, a cylindrical part 21 placed at the same angle to the axis of the device is installed between the working jaws 7 and 8 until it touches the adjustable stop 20. Next, by turning on the hydraulic drive of the device, move the slider 13 with the wedge pusher 14 to the right.

At the same time, the bevelled surface 19 of the wedge pusher 14, acting on the pressure working sponge 7, rotates it around the axis 6, which also causes the turn of the workpiece 21 and the stop working sponge 8 (at the same time the flat spring 10 is compressed). At the same time, when the slider 13 and the pusher 14 move, the spring 15 is compressed and, with a certain deformation, begins to move the toothed rack 16, which turns the cylindrical sleeve 2 in the direction opposite to the direction of rotation of the jaws 7 and 8 (counter-clockwise in FIG. 3). Thus, when the part is rotated and the working jaws, the axis of the part and the adjustment axis of the device (Fig. 1) coincide with simultaneous fixing of the part.

The release of the machined part is performed in the reverse order when moving the cylinder ram to the left.

The use of the invention makes it possible to automate the loading of a part without using special loading devices by combining the installation process and fixing the part to the working position.

1234056.

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Compiled by V. Zoletev Editor A. Ogar Tehred L.Oleinik Proofreader. Shekmar

Order 2933/12 Circulation 1001Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., d, 4/5

Production and printing company, Uzhgorod, st. Project, 4

Claims (1)

DEVICE FOR INSTALLING AND ATTACHING PARTS, comprising a hollow body and spring-loaded working jaws placed therein, mounted on pivotable axles and kinematically connected with a drive wedge pusher, characterized in that, in order to increase productivity, it is provided with a cylindrical sleeve with a gear ring, mounted rotatably in a groove made in the housing, and a gear rack kinematically connected with it, elastically connected to the drive, while the indicated axes of the working jaws are installed s on a cylindrical sleeve with mutual displacement along the body - ^ one of the working jaws is kinematically connected with the spherical surface of the copier inserted into the device, placed in the body, and the spring of the working jaws is made in the form of an equal arm, the ends of the spring are installed with the possibility of interaction with the inverted to each other by the surfaces of the sponges. SU „„ 1234056 FIG. 1 1'234056