SU1340976A1 - Device for loading and unloading multispindle lathe - Google Patents

Abstract

The invention relates to the field of machine tools and can be used when loading multi-spindle lathes. The aim of the invention is the expansion of technological capabilities due to the loading and unloading of parts that do not roll along the feeders in an oriented position. On the longitudinal support 2 of the machine, there are placed on the guides 3 the slide 5, moved by the drive 6. On the slide there is a housing 10 of the rotary feeder with grips for blanks and parts. After the machined part is taken from the spindle cartridge 4, the slide is retracted to the right, the parts are reset in the oriented position in the tray 38, the housing is rotated 90 °, the billet is seized and brought into the spindle cartridge 4. 4 Il. 57 cl OS N about with with:

Description

one

FIELD: machine tool industry. The purpose of the invention is the expansion of technological capabilities due to the loading and unloading of non-rolling parts in an oriented position.

FIG. 1 shows the device, a general view; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. 2; in fig. 4 shows a section B-B in FIG. 2

The device comprises a stand 1 fixed on a longitudinal support 2 of the machine and provided with guides 3 on which a slide 5, fixed in the form of a hydraulic cylinder 6, a rod 7, is mounted on the stand 1 fixed to the machine’s spindle 4. which is connected to the slide 5. In the latter, the spindle 4 is fixed perpendicular to the axis 4, axis 8, on which the housing 10 of the rotary feeder is mounted with the help of bearings 9. On the housing 10 of the rotary feeder, an even number of alternating grippers are mounted for the workpiece 11 and for the finished part 12, axes 13-16 of which are located in a plane perpendicular to axis 8 and intersect at a point located on the axis of the spindle 4. The grippers are in the form of spring-loaded springs 17 bolts 18, in which the ends of the clamping jaws 20 are hinged with the help of axes 19. The second end of the jaws 20 is provided with a slot through which the axle 21 fixedly mounted in the rotary feeder is passed. The spring 17 abuts against the rotary pi body 10 The diaphragm-mounted shoulder 24. The device is also equipped with a dividing mechanism, made in the form of 8 disks 25 and 26 mounted on the axle. The disk 25 is fixed and is rigidly connected to the slide 5, and the disk 26 is rigidly connected to the two-arm lever 27 mounted on the axis 8 and can be rotated around it and fitted with a bobbin 28 at the end of each shoulder. from the disk pins 32. Plungers 30 and 31 are located in the same plane. In the housing 10 of the rotary feeder, the pin 33 is fixed, evenly spaced around the circumference in an amount equal to the number of grippers. On the machine bed (not shown), fixed cams 34 and 35 are installed, as well as a feed vertical tray 36 with a single-discharge mechanism 37 and a discharge tray 38. Rigid cams 39 and 40 are attached to the stand 1. Cams 35 and 40 are made in the form of screws The sleeves are installed with the possibility of contacting the shoulders 24, respectively, of the upper and lower cups 18 of the grippers. Cam 35 is installed

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with the possibility of contacting the two ends of the two arms of the lever 27, and the cam 39 is in contact with the piecework mechanism 37.

The device works as follows. In the initial state, the stem 7 is extended from the hydraulic cylinder 6. A slide 5 with a rotary feeder connected to the stem 7 is located near the end of the longitudinal support 2 close to the spindle 4.

The removal of the machined part is carried out as follows.

When idle during the longitudinal slide 2 to the spindle 4, the housing 10 of the rotary feeder is brought to the machined part 12 of the machined part 12 clamped in a cartridge (not shown). The latter comes into contact with the clamping jaws 20, pushes them and pushes the cup 18 away from the center of the rotary feeder compressing the spring 17. After the spindle cartridge 4 unlocks the machined part 12, it will remain clamped in the gripper jaws 20 of the feeder by the force of the compressed springs 17. Next, the machined part is removed from the working area of the semiautomatic machine, rotated by 90 ° and throwing tray 38 in an oriented position. At the same time, the rod 7 is retracted into the hydraulic cylinder 6. The slide 5 moves relative to the longitudinal slide 2 along the guides 3, away from the spindle 4 the machined part 12. The pin 28 meets the fixed cam 34 on its way and rotates the double-shouldered lever 90 °, on which fixed disk 26 dividing mechanism. The plunger 30 located in this disk contacts the cylindrical surface with the pin 33 and rotates the housing 10 of the rotator by 90 °. The other end of the pin 33, protruding from the opposite side of the housing 10, contacts the face surface of the spring-loaded plunger 31 in the disk 25. The latter is recessed in the disk 25, compressing the spring 29 and passing the cable 33. Turning together with the housing 10, the cable 33 contacts with end surface of the spring-loaded plunger 30, also sinks it into the disk 25 and passes on, and the spring-loaded plunger 30 returns to its original position. The next bobbin 33 is in contact with the end surface of the spring-loaded plunger 31, compressing the spring 29. At this time, the bobbin 28 loses contact with the fixed cam 34, and the rotation of the housing 10 0 counterclockwise stops. Thereafter, the housing 10 of the rotary feeder is fixed in this position. To do this, under the action of the spring 29, the plunger 31 rotates the housing 10 of the rotary feeder in the opposite direction, i.e. 5 clockwise, before the previous bobbin 33 contacts with the cylindrical surface of the plunger 30 and keeps it in this pressed position. So about

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at one time, the rotary feeder is fixed in the angular position, and the axis of the next gripper carrying the workpiece is aligned with the axis of the spindle 4, and the axis of the previous gripper carrying the machined part is turned to the vertical position. With further forward movement of the slide 5 from the spindle 4, the machined part 12 moves to the discharge chute 38, while the thicket 18 by the shoulders 24 contacts the rigid jaw 40, which pushes the pinch 18 from the center of the feeder and squeezes its springs 17. Sharpiro mounted in the thicket 18 clamping The jaws 20 rotate on the axles 19, moving together with the pulley 18 from the center of the feeder, and unclamp the machined part 12, which is removed by its own weight along the discharge chute in the oriented position. Then the next billet is loaded into the spindle. To do this, from the hydraulic cylinder 6 through the 1PTOCK 7, the slide 5 receives a reciprocating translational movement in the direction of the clamping 4. Another bobbin 28, which, after the previous rotation of the feeder, rotates 90 ° counterclockwise to the upper position, contacts the fixed cam 34 and deploys the double-shouldered lever 27 clockwise arrow pas 90 °. The spring-loaded plungers 30 and 31 of the disk 26 fixed on the double-arm lever are sunk into the lip 33 and the disk 26 and the double-arm lever 27 are fixed against the fixed 33 in the angular position of the zipper axle to the end of the turn. are fixed against rotation in a clockwise direction by the plungers 30 and 31 of the fixed disk 25. The blank 11 is mixed by the feeder into a cartridge (not shown) of the spindle 4 and clamped in it.

Further, the longitudinal caliper 2 idly moves away from the shpinddel 4 and returns the loading device installed on it to the initial state, while the clamping jaws 20 are pulled off with the clamped spindle of the workpiece. The pin 28 is in contact with the fixed cam 34, turns the feeder counterclockwise by 90 °. The next gripper for the machined part is set against the spindle, and the upper position of the feeder is occupied by the gripper of the workpiece. When the longitudinal slide 2 approaches the extreme right position, the upper grip box 18 contacts the shoulders 24 with the fixed cam 35 and this cam is pushed up from the center of the feeder, compressing the springs 17. The sponges 20, lifting together with the cup 18, pivotally turn in it - the grip is opened to receive the next blank. Attached to the rack 1, fixedly mounted on the caliper 2, hard cam 39

in contact with the mechanism

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37 by issue. The next blank along the vertical feed chute 36 is delivered to the upper grip of the rotary feeder.

During the cycle of the loading device, the feeder performs the following movements;

translational to the joint with the longitudinal support;

reciprocating movement from the hydraulic drive with a simultaneous rotation of 90 ° counterclockwise;

again forward movement to the spindle from the drive;

reciprocating translational movement together with the longitudinal caliper while simultaneously turning it counterclockwise through 90 °.

The proposed design provides loading and unloading of parts, non-rolling along the trays, in an oriented position, thus ensuring the reliability of the device and increasing productivity.

Claims (1)

Invention Formula A device for loading and unloading a turning multistage lathe containing a rotary feeder with a gripper mounted on a hydraulically operated slide placed on a longitudinal carriage support, underwater and bypass trays, in order to expand technological capabilities by ensuring loading and unloading to trays of details in the oriented position, the device is supplied with additional captures, established, 1enpy in a plane, perpendicular. The pivot feeder axis of the rotary feeder, and made in the form of spring-loaded cups with sponges, which are harnessed in them, the free end of which is provided with a slit with an axle fixed in the rotary pitt body, and installed on the slide with a rotary feeder, is a dividing mechanism, made in the form of two discs, fitted with spring-loaded plungers placed at an angle to each other, seams uniformly fixed around the circumference in the rotary feeder with the possibility of interaction with the face and cylindrical surface of spring-loaded plungers, one of the discs mounted on the slide without support, and the other with reversible rotation in conjunction with the rotary controller when interacting with the cam inserted into the device locked on the machine bed, while the spring-loaded ones are installed with the ability to interact with the additional , 1 entered ku, packs of mi, one of which is fixed motionless on the frame, and the other - on the longitudinal support of the machine. 0 five 12.  n 23 rs  // / 2S 2 Fig.Z 31 25.26 J / 29 Fy