SU984703A1 - Chuck for mounting and securing parts such as discs - Google Patents

Description

one

The invention relates to the field of machine tools and can be used to install and fasten parts such as disks, mainly from a fragile non-metallic material, such as abrasive wheels.

The closest to the proposed technical essence and the achieved effect is a device for securing parts such as disks, i containing a clamping ring and clamping elements mounted in the housing, connected to a hard drive. eleven.

A disadvantage of this device is the impossibility of its use 15 in machines that provide a full cycle of automatic processing of parts. As for changing the part to be machined, it is necessary to manually remove the locking washer and the clamping disk.

The purpose of the invention is to automate the installation and securing of parts.

This goal is achieved by the fact that the clamping elements are made in the form of clamps with gears rotating at an angle of 90 with gears in contact with a rail made on the drive rod, and the device is equipped with a self-aligning axially spring-loaded ring placed on the housing, and stops for grip interactions.

FIG. 1 shows a cartridge, a longitudinal section; FIG. 2 shows section A-A in FIG.

Claims (1)

The cartridge includes a housing 1, in three grooves of which the clamps 2 are mounted on gear x 3 so that they can be rotated on bearings t around axes 5 fixedly mounted in housing 1 from a toothed triangular rail 6 mounted with reciprocating motion The sleeve 9 7 fixedly mounted in the housing 1, the rail 6 is connected to the control rod 8, which provides the reciprocating movement of the rail 6, the housing 1 is fixedly fixed through the transition flange 9 to the machine spindle 10, torque keys serve keys P and 12. The self-adjusting ring 13 is mounted on the transition flange 9 with the possibility of axial movement and face skew. The ring 13 deder lives from rotation when the torque is transmitted by key 12 and is spring loaded. Six sets of disc kfs located in the threaded cups 15 installed in the transition flange 9 fixed by cap nuts 16. Axial movement of the ring 13 is limited by bolts 17 and nuts 18. The position of the support end B of the ring 13 relative to the support surfaces B of the tacks 2 is determined by adjusting the position of the threaded cups 15 in the transition flange 9 and is set so that between them there is a distance of 2-3 mm less than the height of the clamped part 19. Setting the disc springs 1 4 to transfer them in m The clamping force is calculated by bolts 17 and nuts 18. Supports 20 and 21 restrict the rotation of gear wheels 3 with claws 2 to a position in which the bearing surfaces B of the claws form the base end for the clamped part. 19I strictly perpendicular to the axis of the cartridge. This position adjusts with a fit of the compensatory rings 22 under the supports 20. For clamping in the cartridge of parts of smaller height, use of spacer rings 231 Neck 1 of body 1 serves for preliminary centering, and neck D for precise centering of clamped part 19. Neck A is slightly smaller (on 3-5 mm) diameter than the diameter of the hole of the part so that at the time of its pre-installation and the cartridge to eliminate the high (up to 0.03 mm) positioning accuracy of the machine components. The self-adjusting spring-loaded ring 13 compensates for the stroke of the manipulator Lne is shown) when it sends parts of different (within tolerance) heights to. .4 the centering neck of the cartridge, which allows the base end of the part to be set to the same plane each time as the manipulator moves to the hard stop. The cartridge works as follows. The starting position of the cartridge is the position j in which the hooks 2 in the slots of the housing 1 are located along the axis of the cartridge, the rack 6 and the control rod 8 are in the extreme position, the self-adjusting ring 13 is moved to the left as far as it will go by the action of the disc springs 14. The force of the springs closes through the ring 13, the bolts 17 and the nuts 18 to the bottom of the threaded cups 13 installed in the transition flange 9. After the part 19 is installed in the cartridge and held by the operator in the compressed (together with the rings 13 and 25) position so that its base end E was in the plane of the tacks B, the part is clamped as follows. Axial movement to the left of the control rod 8 and the triangular bar 6 connected with it causes rotational movement of gear wheels 3 with tacks 2 fixed to them. Rotational movement occurs until the supports 20 belonging to the gear wheels 3 are not pressed into the supports 21 fixedly mounted in the housing 1. In this position, the supporting surfaces B of the claws 2 form the base end for the clamped part. The clamping is carried out by pressing the part 19 with a self-aligning ring 13 with the force developed by the cup springs 14 to the supporting surfaces B of the tacks 2 after the auto-operator is retracted to its original position. The proposed cartridge for mounting and securing parts is primarily intended for use on automatic machines, in which these operations are part of an automatic part processing cycle. . As a result, manual labor completely eliminated with the installation (removal) and fastening (squeezing) of the workpieces (for example, in automatic machines), moreover, machines that allow these operations to be performed in automatic mode can be easily integrated in automatic lines or to be part of the processing complexes ... Claims for mounting and securing parts such as disks containing a clamping ring and clamping elements mounted in a housing associated with a hard drive, are required in order to automate the installation and closing operation. the parts, the clamping elements 36 are made in the form of hooks with gears rotating at an angle 9 and in contact with a rail made on the drive shaft, the device. equipped with a self-aligning axially spring-loaded ring placed on the body, and stops designed to interact with sticking. Sources of information taken into account in expert 1. USSR author's certificate No. itlSlSO, cl. In 2 In k5 / QQ, 1971 (prototype). II Z (D (pue.i 0