SU433011A1 - WORKING ROTOR - Google Patents

Description

.one

The invention relates to machine tools.

Working rotors are known for machining workpieces, which are equipped with spindles with a collet chuck for workpieces in them and tool rods, the axes of which are located with eccentricity relative to the axes of the spindles according to the number of working positions.

The proposed rotor is distinguished by the fact that, in order to alternately install auxiliary and cutting tools along the spindle axis, the latter are fixed at the end of the rod on a circle whose radius is equal to the above eccentricity.

FIG. 1 shows a general view of the working position of the rotor; in fig. 2 is a section along A-A in FIG. one; in fig. 3 is a view along arrow B in FIG. one.

At each working position, instrumental blocks were measured. Each block consists of a casing 1, in which a rotating spindle 3 is mounted on a bearing 2. A drive gear 4 is seated on a P1 spindle. Inside of P1 nindel there is a collet clamp of the workpiece consisting of a collet 5, which is screwed on the craw 6, the grooves of which include cams 7, mounted on an axis x 8 of the adjusting ring 9. The collet is opened after unclamping by a spring 10. On the upper part of the spindle there is a sleeve 11, on the upper end of which a ball bearing is mounted

2

12 is connected to the rotor slider, and the second end of the sleeve is made in the form of a cone designed to rotate the cams during the clamping of the collet. In the lower part of the housing there is a rod 13, the center of which is located with eccentricity of the spindle in relation to the spindle axis. At the end of the rod, on the circle with a radius equal to the eccentricity, there are fixed an auxiliary tool, in particular, a sub-spring stop 14, feeding the workpieces into the collet, and a cutting tool 15 processing the workpiece. At the lower end of the stem, lever 16. is fixed. It rotates the stem. The lever is driven from the cam 17 mounted on the rotor frame. The lever is returned to its original position by a spring 18. When performing machining machining, in which a cross-feed of the tool is required, the lever

nrnvodnts in motion from the Coppra 19, installed on the same bed. The rod is moved in the axial direction to feed the workpiece and the tool feed to the chuck for cutting from the drum copier fixed in the rotor frame in the usual way. An axle 20 is fixed in the lever, on which a roller 21 is installed, rolling on the side copy 17. The axis serves to set the stop 14 in the center of the spindle and to fine-tune the cutting tool in case it is fed in the cross direction {for example, when cutting annular grooves in the workpiece). The lever also has a screw-in screw 22, which serves to fine-tune and limit the tool feed in the axial direction, as. when moving the rod, the end of the screw rests against the end of the block, the shock absorber is a spring mounted in the rotor slide. A movable stop 23 is fixed at the end of the body of the block, by rotating it, the tool is accurately positioned in the center of the spindle. The stop is fixed by a stopper consisting of a pile 24, fixed at the end of the block's cornea, and the sleeve 25, secured, embedded in the rotary lever. In the case of a non-stick tool, the ditch is excluded. In the center of the spindle there is a height-adjustable rod 26 screwed into the fitting 27. At the lower end of the rod there is a movable spring-loaded tip 28, which serves as a stop during iodification of the workpiece into the collet and as an ejector of the processed workpiece during unclamping the collet. In addition, it does not allow the workpiece to be straightened when clamped with its collet, which ensures the accuracy of processing linear dimensions.

When the rotor rotates, the roller 21 of the pivoting lever 16 locates on the copier 17 and rotates the rod 13 to the position of feeding the workpiece to the collet 5, maintaining the workpiece in this position on the specified rotational path of the rotor until the workpiece enters the collet. The workpiece is fed into the collet from the drum copier 1 by means of an integrated spring 14 installed at the end of the rod, and the collet is clamped by the rotor slider by means of the cup 11. After this, the shredder 13 is lowered into the lower position, the roller 21 of the rotary lever 16 comes off the copier 17, and the rod, by the action of returning the spring 18 of the spring, rotates up to the stop 23 in the position of feeding the tool 15 to the rezapie. At the initial moment of movement of the rod, the bushing 25 enters the finger 24 and fixes the position of the tool along the center of the pindel axis 3. After the cutting process is completed, the stock moves back to the desired position, the luiiira node expands by the action of the rotor slider, and the machined part is pushed out by a spring-loaded rod 28. npHCiMHHK block 29.

Pre iMET Invention

Working rotor for; mechapic processing of workpieces, equipped according to the number of working positions by spindles with a collet clamping of workpieces and tool rods, the axes of which are arranged with eccentricity relative to the axes of the hygroscopic tape, that is, in order to ensure transportation. The mounts of the alternate installation of auxiliary and cutting tools along the axis of the spindle, they are fixed at the end of the shaft along a circumference, the radius of which is equal to the eccentricity.