SU1199578A1 - Charging/discharging arrangement - Google Patents

Abstract

LOADING AND UNLOADING DEVICE containing a feeding mechanism made in the form of a pusher mounted for reciprocating movement, a rotary table with clamping mechanisms and an unloading mechanism, characterized in that, in order to expand technological capabilities, the feeding mechanism is provided with a spring-loaded puller located above the pusher parallel to it and two levers mounted on a pusher with levers supported on the ends, placed with the possibility of swinging relative to the levers, and that the spring-loaded stripper is kinematically coupled to the arms and each clamp mechanism is formed as a T-shaped spring-loaded clamping arms mounted coaxially to the feeder. (L; o QO ate cx

Description

The invention relates to a machine tool industry and, in particular, to loading and unloading devices of machine tools. The purpose of the invention is to expand the technological capabilities of the device by ensuring the supply of parts of different sizes. FIG. 1 shows the proposed arrangement, general, general view; in fig. 2 is a section A-A Hff.i of FIG. one; in fig. 3 shows a section BB in FIG. one; in fig. 4 shows a section B-B in FIG. 2; ya fig. 5 - the figure of YY in FIG. 2; on fi-g- .- b - section dd in fig. 2; in fig. 7 is a sectional view E — E of FIG. 2; in fig. 8 - the same, for different dimensions of parts; in fig. 9 is a section of an LF in FIG. 2. On the plate (Fig. 1) a rotary table 2 is installed, on which evenly spaced clamping mechanisms 3 are mounted, which contain spring-loaded hooks 4 (Fig. 6), a pusher 5 with roller 6, in contact with the strip 7 of the elastic drive 8 (Fig. one). Clamps 4 (Fig. 6) are made with L-shaped rectangular sections with windows 9, which serve to install springs 10. Springs 10 are mounted on screws 11 and act on clamps 4 through their heads to automatically secure part 12. Clamps 4 also have lead-in chamfer 13 (Fig. 2) and support sites 14 (Fig. 6). The support pads 14 through the lever 15 and the pusher 5 with the roller 6 are operated by an earring 16 for final fastening of the part 12. Adjustable lugs 7 are mounted on each periphery of the clamping mechanism 3 on the periphery of the turntable 2 (Fig. 2-4), which provide simultaneous movement of the turntable 2 with the housings 18 and 19 of the carriages 20 and 21 (fig.), 2 and 4). On the heads of the stops 17 fixed adjustable supports 22, interacting with the limit switch 23 (Fig. 3). A carriage 20 with a loading mechanism and a cassette 24 with blanks and a carriage 21 with an unloading mechanism and container 25 for receiving finished parts are fixed on the plate (Figs. 1, 2 and 4). The loading mechanism (Fig. 2) contains a pneumatic cylinder 26, on the rod of which is mounted a pusher 27 with a spring-loaded puller 28 (Fig. 7 and 8) and an orienting retainer 29, fixed with a pusher 27 on the pusher 27 and kinematically connected with a spring-loaded puller 28. The retainer 29 represents It is a pair of levers, at the ends of which the swinging supports 30 are fixed. The ability of the locking levers 29 to change their position relative to the axis of the loaded part 12 ensures the orientation of parts of different dimensions. The unloading mechanism (Fig. 4) contains a pneumatic cylinder 31, the stem of which with the help of an earring 32 on which the support 33 is mounted, is connected to a pusher 34 on which a puller 35 is fixed, which is a spring tape with a tip 36. The support 33 when the unloading mechanism works interacts with the limit switch 37. On the base 38 of the carriage 20 (FIG. 2) are fixed a copier 39, adjustable support 40 (FIG. 3), a stand 41 with a roller and a limit switch 23. On the body 18 of the carriage 20 (FIG. 2) are mounted on X axis rollers 42 (Fig. 5), interacting with the working surface The copier 39. The housing 18 of the carriage 20 (Fig. 2) is connected to the base 38 of the same carriage by means of strips 43. A rolling pin, 44 with a spherical tip abutting against the adjustable support 40, and a spring 45 are mounted on the housing 18 of the carriage 20 (fig. 3) serving to return the body 18 of the carriage 20 to its original position. On the housing 18 of the carriage 20, a hinged abutment 46 is hinged together (FIG. 3). Adjustable elements 47 (FIGS. 2 and 3) are mounted between the base 38 of the carriage 20 and the plate 1 to align the base of the cassette 24 with the supporting surface of the clamping mechanism 3. On the base 48 of the carriage 21 (FIG. 4) there is mounted a copier 49, an adjustable support 40 (FIG. 3) and stand 50 with a roller. The body 19 of the carriage 2 is a receiver 51 (FIG. 4) with an inclined plane along which the machined part 12 falls into the container 25. On the body 19 of the carriage 21 rollers 52 are mounted (FIG. 4), which are in contact with the working surface of the copier 49 during movement housing 19 relative to the base 48. The housing 19 of the carriage 21 is connected to the base 48 of the same carriage with the mud of the rails 53 (Fig. 4). On the body 19 of the carriage 21, a limit switch 37 is mounted and a hinged stop 54 is hinged. The adjustable elements 55 are mounted between the base 48 of the carriage 21 and the plate 1 to create a pressing force by the tip 36 of the puller 35 on the drop part 12. On the bases 38 and 48 of the carriage 20 and 21, stop screws 56 (FIG. 3) are mounted to fix the housings 18 and 19 of these carriages in the initial position. The device works as follows. The turntable 2 rotates clockwise continuously from a machine drive (not shown). The bases 38 and 48 of the carriages 20 and 21 are fixed. The housing 18 of the carriage 20 under the action of the springs 45 is pressed against the stop screw 56 located on the base 38 of the carriage 20. The folding stop 46 is in a horizontal position. Upon further movement of the turntable 2, the adjustable stop 17 captures the folding stop 46, and the body 18 of the carriage 20

starts moving synchronously with the turntable 2.

At the beginning of the synchronous rotation, the support 22 located on the stop 17, presses the limit switch 23 fixed on the base 38 of the carriage 20, is given a command to the pneumatic distributor (not shown), and the compressed air flows simultaneously into the cavities of the pneumatic cylinders 26 and 31 of the loading and unloading mechanisms.

The pneumatic cylinder 26, on the brush of which the pusher 27 with the spring-loaded puller 28 is located, supplies from the cassette 24 the part 12 to the clamping mechanism / anism 3. The pusher 27 moves forward and the pushed-off spring puller 28 abuts the part. The spring-loaded puller 28, overcoming the friction force, retreats back, turning the orienting retainer 29, which with its levers and swinging supports 30 provides the output of the part 12 from the cassette 24 and loads it into the clamping mechanism 3 in the oriented position. At the same time, the pusher 27 with the puller 28 separates the lower part from the rest of the parts and passes under the parts. Upon further movement of the pusher 27 with the puller 28, the part 12 in the oriented position abuts against the spring-loaded hooks 4 of the clamping mechanism 3, lifts them, passes under them until the stop of the clamping mechanism 3, and is clamped by the clamp 4.

The spring force of the tacks 4 of the clamping mechanism 3 should be greater than the spring force of the puller 28. This makes it possible to more reliably orient and fix the part in the clamping mechanism 3.

The unloading mechanism is triggered idle and at the same time with its support 33 presses the limit switch 37, a pneumatic distributor (not shown) is switched and compressed air is fed into the cavities of the pneumatic cylinders 26 and 31 of the loading and unloading mechanisms for reverse. In this case, the pusher 27 with the spring-loaded puller 28 of the loading mechanism moves back, is removed from the puller 28, and under the action of the spring it removes the kinematically associated orienting retainer 29 from the part 12. The pusher 27 with the spring-loaded puller 28 returns to its original position, freeing up space for next detail.

At the same time, the puller 35 of the unloading mechanism by the tip 36 dumps the processed part 12 into the container 25, and if there is no part, it passes idly. The removal force of the part must be greater than the force of fixing the part in the clamping mechanism.

In this way, the operation cycle of the mechanisms for loading and unloading parts during the period of synchronous rotation of the carriages 20 and 21 and the turntable 2 is carried out.

During synchronous rotation, the folding stops 46 and 54 run with their bevels on the rollers of the uprights, the rollers rolling over the beveled surface of the folding stops 46 and 54 move them relative to the adjustable stop 17. The housings 18 and 19 of the carriages 20 and 21 compress the springs 45, which act on rolling pins 44. The latter, with their spherical tips, abut against the adjustable support 40. At the end of the synchronous rotation, the folding stop 46, which rolls onto the stand 41 roller, is disconnected from the adjustable stop 17. The housings 20 and 19 of the carriages 20 and 21 c disconnect. The separate table 2, and under the action of the compressed springs 45 located on the rolling pins 44, the carriages 20 and 21 return to their original position, resting against the stop screws 56.

Item 12, located in clamping m. Mechanism 3, rotating with rotary table 2, enters the machine processing area, is automatically clamped and processed. The machined part 12 is moved to the discharge mechanism. Upon further rotation of the turntable 2, the support 22 presses the limit switch 23, and the cycle of operation of the loading and unloading mechanisms is repeated.

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Claims (1)

LOADING AND UNLOADING DEVICE containing a feeding mechanism made in the form of a pusher mounted with the possibility of reciprocating movement, a rotary table with clamping mechanisms and an unloading mechanism, characterized in that, in order to expand technological capabilities, the feeding mechanism is equipped with a spring-loaded puller located above the pusher parallel to it, and two levers pivotally mounted on the pusher with supports at the ends, arranged to swing relative to the levers, while The spring-loaded puller is kinematically connected with levers, and each clamping mechanism is made in the form of L-shaped spring-loaded clamps mounted coaxially to the feeding mechanism. Fi g. 1 Z5 C © Si M QO