SU1255392A1 - Automatic rotor - Google Patents

Description

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The invention relates to a machine tool industry, in particular, to rotary machines of continuous action, in the course of which automatic tool changing takes place, and can be used for sequential processing of a workpiece from two sides simultaneously at the same working position with different (different type) tools.

The purpose of the invention is to increase the productivity of the machine and expand its technological capabilities by providing consistent processing of the part from two sides in one working position with different types of tools.

Fig, 1 shows the machine, general view, section; in fig. 2 is a section A-A in FIG. 1; FIG. 3 is a section BB in FIG. 2 | in fig. 4 - section bb In fig.Z; in fig. 5 - tool head with devices for satas i-nodding, removal and removal of parts, section.

The rotor machine contains a frame 1 with 2 rotatable-dividing devices fixed to it with the possibility of reciprocating movement, for example, in the form of gear sectors with the required 4 number of teeth. On the central shaft 3 of the rotor is fixed centrally drum 4 with equal-. The clamping devices 5, numbered on its 35 Hz circumference, are made in the form of collet chucks. The tool blocks 7. rigidly fixed in the form of spindle assemblies bearing tool multi-spindle heads 8, each of which is equipped with a mechanism 9, are rigidly fixed from above and below with respect to the drum 4 on the central shaft 3 by means of faceplates 6. rotation of the tool head 8 at a predetermined design angle, made, for example, in the form of a gear, interacting with the drives of 2 rotary separating devices.

The rotary automat also contains a drive 10 of the central shaft 3 of the rotor, an electric drive 11 of rotation of workers 12553922

an array 14 with grippers 15, and housed in each upper tool head 8, while supporting 16 for pushing, pulling and removing parts 30

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Lei, made in the form of a sleeve, in which a rod 18 connected to a pusher 17 is installed with the possibility of reciprocating movement along the longitudinal axis of the sleeve. At the same time, due to the reciprocating movement of the pins 18, they can interact in the upper position with the thrust sleeve 19 fixed in the upper part of the liner, and in the lower position with clamp collet 20. To ensure the left or right direction of rotation of the spindles 13 of the tool blocks 7, said spindles 13 are equipped with an asterisk and 21 and 22 and the switching mechanism 23, a chain transmission, and at the free ends of the central shaft 3, i.e. two hollow shafts 24 and 25 are coaxially mounted on top and bottom of its central, carrier drum 4, sprockets 26 and 27, respectively, are installed at one end of the shafts 24 and 25, and on. the other ends are bevel gears 28 and 29, designed to interact with bevel gears 30 and 31 mounted on the shaft of the electric drive 11 for rotating the working tools.

The control of the chain-shifting mechanism 23 is provided by a closed stream cam 32.

The mechanism 12 of the reciprocating movement of the spindles 13 of the tool blocks 7 includes a roller 33 in contact with the cam 34, providing control of the working stroke and the downward movement of the spindles 13.

Compression springs 35 (return springs) are designed to retract spindles 13 with tool heads 8 from the workpiece.

Instrumental multispindle heads 8 are mounted on spindles x 13 in such a way that their axes are located between each pair of clamping devices 5, and their clamps 36 are made quick-detachable, the tools of tool heads B, 55 are example, in the form of a rod with a transition mechanism 12 reciprocating threaded part for tightening the nut, moving the spindles 13 tool and conical base, fixed blocks 7, boot oral in a through conical sleeve (not

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Lei, made in the form of a sleeve, in which a rod 18 connected to a pusher 17 is installed with the possibility of reciprocating movement along the longitudinal axis of the sleeve. At the same time, due to the reciprocating movement of the pins 18, they can interact in the upper position with the thrust sleeve 19 fixed in the upper part of the liner, and in the lower position with clamp collet 20. To ensure the left or right direction of rotation of the spindles 13 of the tool blocks 7, said spindles 13 are equipped with an asterisk , and 21 and 22 and the switching mechanism 23, a chain transmission, and at the free ends of the central shaft 3, i.e. two hollow shafts 24 and 25 are coaxially mounted on top and bottom of its central, carrier drum 4, sprockets 26 and 27, respectively, are installed at one end of the shafts 24 and 25, and on. the other ends are bevel gears 28 and 29, designed to interact with bevel gears 30 and 31 mounted on the shaft of the electric drive 11 for rotating the working tools.

The control of the chain-shifting mechanism 23 is provided by a closed stream cam 32.

The mechanism 12 of the reciprocating movement of the spindles 13 of the tool blocks 7 includes a roller 33 in contact with the cam 34, providing control of the working stroke and the downward movement of the spindles 13.

Compression springs 35 (return springs) are designed to retract spindles 13 with tool heads 8 from the workpiece.

Multi-spindle tool heads 8 are mounted on spindle x 13 in such a way that their axes are located between each pair of clamping devices 5, and their clamps 36 are quick-detachable, shown) mounted in the drum 4 plate. Tool heads 8 include a central shaft (spindle) 37 with a spur gear 38 for transmitting rotation to vertically mounted working spindles 39 and a bevel gear 40 for transmitting rotation to a horizontally mounted working spindle m 41, having place only in the instru- them. mental heads 8. In this case, the working vertical 39, and horizontal 41 spindles, respectively, are equipped with individual gears. Tool heads 8 set-. 5, the interaction of the actuator 2 with furred-also bushings 42, designed to interact with the latches 36 while fixing the tool heads 8 in a predetermined operating position.

The loading device 14, carrying the grippers 15, it is advisable to perform, for example, in the form of an endless non-power conveyor, the entrance of the drum 4, which engages with the toothed rim 43 of the drum 4 and has the possibility. adjusting the length of the span of the ring gear 43. The grippers 15 are made of a tick-borne type, with one of the jaws being spring-loaded or made of an elastic material, which facilitates the opening of the jaws using a plate 45 installed in front of the feeder 44 and their subsequent spontaneous closure.

Clamping devices 5 to facilitate the removal of machined parts, it is advisable to equip the stop 46 and the device 16 with a nut 47 mounted on the end of the lower part of the sleeve.

The machine works as follows.

The shaft 3 of the working rotor, carrying in its central part a drum 4 with clamping devices 5 and 4 instrumental blocks 7 with instrumental multi-spindle heads 8 mounted above and below the drum, obtains the required constant rotation from the drive 10.

The loading device 14, carrying the grippers 13, engages with the ring gear 43 of the drum 4, receives synchronous rotation from the latter and performs loading for

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clamping devices 5 oriented parts coming from feeder 44 to clamps 15, the sponges of which open up when hitting the plate 45 and the oriented part is held inside the grips 15. When the axes of the parts are aligned with the axes of the clamping devices 5 (collet chucks), the part is pre-installed on working position with the help of devices 16. For this the spindles are 13 tool blocks 7- together with the tool head 8 turned by 20

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By turning 9 the swiveling-dividing devices of the automaton, the predetermined design angle, which ensures the combination of the axis of the part with the axis of the pusher 17 of the tool 16, is fed to the workpiece.

In this case, the tool head 8 of the upper tool block 7, due to the positioning of its axis between a pair of clamping devices 5, makes pushers 1 7 in the lowest position, pushing the two parts into the clamping devices 5 at the same time not more than 1/2 the depth clamping device 5 (collet chuck). After such a pre-installation, the resilient jaws of the grippers 15, due to the incessant movement of the loading device 14, slide off the surface of the pre-installed part and with the closed jaws are again transported to the feeder 44.

After the parts have been removed from the claws 15 as a result of the continued lowering of the tool head 8, the pushers 17 of the fixtures 16 press on the parts and put them in contact with the stops 46 of the clamping devices 5. At the same time, the pushing forces of the pusher 17 connected to the rod 18 installed inside the sleeves (devices 16) with the restriction of its movement upwards along the sleeves by the thrust sleeve 19, and downwards by the clamp collet 20, are supported by the elastic properties of the latter. The collet 20, the ram of the plunger 17 along an annular groove (not shown), holds the plunger 17 in its lowest position, ensuring that the part is pushed in. When a part under the pressure of a pushing pusher 17 comes into contact with the stop 46 of the collet chuck (clamping device 5), the elastic force of the collet 20 becomes insufficient to hold the pusher 17 in the lowest position, and it is freed from contact with the collet 20, together with the rod 18, rises upwardly into the device 16 (sleeves). As a result of this movement, the pusher 17 is placed inside the sleeve, and the rod 18, which has entered into engagement with the stop sleeve 19, will come out free

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At the end of the cycle, the corresponding machining operation of the parts, for example, drilling, the lower and upper tool heads 8 5 are retracted from their working positions to their

extreme positions (lower or upper, respectively), after which the interaction of the actuators 2 and the rotation mechanisms 9 of the rotary-dividing 10 devices, namely the interaction of the gear sectors, fixed on the base 1, and the gear wheels installed in each head 8, rotates the instrumental holocomposts up behind the body of the instrument 8 to the new working position and, the head 8, simultaneously changing the working tools as a result of the continued movement, the cops enter them into the treatment area the cutting head 8 down towards the pushed part,

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to perform the following operation.

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the final clamping of the part in the collet chuck of the mounting tool 5 is carried out by means of the nut 47 of the tool 1b

After clamping the parts in the clamping devices 5 of the respective 25 working positions, using the actuators 2 and the rotation mechanisms 9 of the rotation-dividing devices, the tool heads 8 are rotated to the required working position Q, they are fed to the parts, fixed on the latches 36 included in sleeves 42, with two working positions. The working tools are machined from one tool head 8. The required direction of rotation is transmitted by the working tool from spindles 13, kinematically connected to the electric drive 11 via sprockets 21 and 22, the chain transfer mechanism 23 mounted on the shaft 3 of two hollow shafts 24 and 25 and placed sprockets 26 and 27 and bevel gears 28 and 29.45 at their ends

The cam 34, having a track, is executed according to the cyclogram of the machine, controls the working feed of the tool, the process of machining the de-jq hoists within the optimal parameters specified by the requirements of the process, and stopping the rotation of the working tool.

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Upon completion of all the machining operations required by the conditions of the machining process, the tool heads 8 are uncoupled and removed from the workpiece to the lowest and upper positions.

After rotation of the lower intruder heads 8 to align the axes of the fixtures 16 with the axes of the machined parts, the nuts 47 of the fixtures 16 of the lower tool heads 8 are fed until they come into contact with the stops 46 of the clamping devices 5 and press the said stops 46 to release the part from the clamp. At. In this way, the upper tool head 8 is lowered onto the decompressed part with its fixture 16 with a collet 20 for removing and removing the machined part. The collet 20 with its conical part presses on the part, opens from the counterpressure from the part, seizes the latter and, due to the incessant rotation of the working rotor, removes the part from the working position, for example, into the discharge chute.

Simultaneously with the unloading of the machined parts, the parts are loaded into the released clamping in method 5 of drum 4. The cycle is repeated.

At the end of the cycle of the corresponding machining operation of the parts, for example, drilling, the lower and upper tool heads 8 are retracted from their working positions to their

extreme positions (lower or upper, respectively), after which the interaction of the actuators 2 and the rotation mechanisms 9 of the rotary-dividing devices, namely the interaction of the gear sectors, fixed on the base 1, and the gear wheels installed in each head 8, rotates the tool heads 8 to the new working position and, thus changing the working tools, enter them into the treatment area

to perform the following operation.

Upon completion of all the machining operations required by the conditions of the machining process, the tool heads 8 are uncoupled and removed from the workpiece to the lowest and upper positions.

After rotation of the lower intruder heads 8 to align the axes of the fixtures 16 with the axes of the machined parts, the nuts 47 of the fixtures 16 of the lower tool heads 8 are fed until they come into contact with the stops 46 of the clamping devices 5 and press the said stops 46 to release the part from the clamp. At. In this way, the upper tool head 8 is lowered onto the decompressed part with its fixture 16 with a collet 20 for removing and removing the machined part. The collet 20 with its conical part presses on the part, opens from the counterpressure from the part, seizes the latter and, due to the non-stop rotation of the working rotor, removes the part. from a working position, for example, to an unloading tray.

Simultaneously with the unloading of the machined parts, the parts are loaded into the released clamping devices 5 of the drum 4. The cycle is repeated.

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Editor N. Dankulich

Compiled by ELHO Marov

Tehred L,. Serdaokova Proofreader L. Pilipenko

Order 4761/17 Circulation 826. Subscription

VNIIPI USSR State Committee

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

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

Claims (3)

1. ROTARY AUTOMATIC CONTENT-. a working rotor mounted on the bed with clamping devices and tool blocks with multi-spindle tool heads evenly spaced around the drum circumference, including devices for pushing, removing and removing parts, and a loading device, characterized in that, in order to increase the performance of the machine and expand its technological capabilities, it is equipped with rotary-dividing devices with drives that are located on the bed, and rotation mechanisms, races laid in each tool head, while the axes of the latter are located between each pair of clamping devices, and the latches of the rotary-dividing devices are mounted on the rotor drum. 2. Automatic pop. ^ characterized in that each drive of the rotary-dividing device is made in the form of a gear sector installed with the possibility of rotation around the axis of the tool head. 3. The machine according to claims. 1 and 2, provided that the devices for pushing, removing and removing parts are made in the form of a sleeve installed with the possibility of reciprocating movement of the rod, the pusher connected to it, the thrust sleeve installed in the upper part of the sleeve, and the collet located in the lower part of the sleeve, and the sleeve and sleeve installed with the possibility of interaction with the rod. ND SL SP Nd 1,125