SU1425049A1 - Arrangement for changing pallets in flexible production module - Google Patents

Abstract

This invention relates to a machine tool industry and can be used in flexible manufacturing systems. The purpose of the invention is to simplify the design - it is provided that one mechanism can perform the functions of installing and removing raids on the desktop of the machine 1 and on the raid feeder included in the module. For this, the plaque changer 1 contains a rod 8 with two grippers on opposite sides and a drive mechanism made in the form of a chain 9, enveloping the drive, tensioning and guiding sprockets 10-13. On the rod 8 there is a clutch element in the form of a plate 14 with grooves open at the bottom. The plate 14 interacts with the chain 9 through a coupling element made in the form of a finger 15, rigidly connected to the center of one axis 16 of the chain link 9. 4 Cp. f-ly, 6 ill. with

Description

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The invention relates to machine tools and can be used in flexible manufacturing systems.

The purpose of the invention, the design simplification, is provided by the possibility of Fibi complementing, by one mechanism, the functions of the installation-removal of plaque on the desktop of the machine and on the feeder of the plaque included in the module.

FIG. 1 depicts a shift device, a general view; in fig. 2 - the same, top view; in fig. 3 - the same, with one groove grip; in fig. 4 - the same, with shtanga, made in the form of slats; pas figs. 5 the same for the case of the presence of an even number of flights; in fig. 6 - the same, for the case of a console arrangement of the housing of the device with the names of the satellite tables.

The production module contains a multi-purpose machine 1 with a rotary table 2, a multi-station 3 shift device and a transport trolley 4 of a flexible production system (GPS). The multi-socket flight changer 3 consists of a fixed part 5 - base and a turning part 6, on which an honored number of flying 7 is installed. To move the touch on the table 2 of the machine 1 or on the GPS transport trolley 4, the sms device contains a bar 8 with two .m grippers at its opposite ends and a drive mechanism made in the form of a chain 9 with four asterisks 10, giving the direction of movement of the chain. On the side of the rod 8, three more stars 11-13 are mounted V-shaped on the chain 9, and a clutch element in the form of a nlastina 14 with two slots open at the bottom is mounted on the rod 8. The plate 14 interacts with the chain 9 through a coupling element made in the form of a finger 15, rigidly connected to the center of one axis 16 of the chain link 9.

The finger 15 for moving the rod 8 (to the left in the drawing) is in the groove between the sprockets 11 and 12, for moving the valve 8 to the right — it is in the groove between the asterisks 12 and 13. At the same time, the finger 15 is mounted for reciprocating both grooves of the plate 14.

It is possible to fasten the finger 15 on the bracket 17 fixed on two axes of one link 18 of the chain 9, and the plate 19 can be made with one groove, as shown in FIG. 3, the finger 15 is also mounted for reciprocating in the groove plane of the plate 19.

In order to reduce the dimensions of the drive mechanism, it is equipped with a stroke doubling mechanism, for which the rod 20 is made in the form of a rail and the gripper contacts the shaft through gears 21, a plate 22 is installed on KOTOpi ix (Fig. 4).

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To ensure the operability of the device, provided there is an even number of pallets in each shift position on the table 2 of the machine 1 and on the transport carriage 4, the pallet lifting mechanism 23 in the form of hydraulic systems is installed on the stationary part 5 of the pallet changer (Fig. 5).

To improve the gripping conditions of the boom 8 from the transport device 4, namely, to prevent the boom from bending during its engagement and disengagement from the pallet grip 7 located on the transport trolley 4, the drive body 24 from the machine 1 side is mounted on the hinge console 25 From the side of the transport carriage 4 in the zone of the vertical part of the chain 9 on the base 5 an emphasis 26 is made, and the groove of the gripper 27 is enlarged to such dimensions that the finger 15 has the possibility of periodically interacting with the emphasis 26.

The device works as follows.

The movement of the raids 7 from the pallet changer onto the table 2 of the multi-purpose machine 1 is carried out as follows (Fig. 1). At the command of the CNC machine tool

The turning part 6 of the device supplies the plane 7 to the change position on the table 2 of the machine 1. In this case, the grip of the pile 7 with the grip on the shtamp of the device occurs. An asterisk 10 is turned counterclockwise. The finger 15, located in the slot of the plate 14, begins to move along the path defined by the chain 9 in the direction of the machine 1.

On the curvilinear part of the trajectory defined by an asterisk 11, the movement of the cusp 7 will be accelerated. Pa horizontal portion of the trajectory between the asterisks

II and 10 of the pallet 7 is moving at a constant speed. When finger 15 enters the curvilinear section of the path of the chain 9 in the engagement zone, indicated by an asterisk 10, pallet 7 begins to slow down and when the finger 15 enters the vertical part of the path, the pallet stops on the table 2 of the machine 1 and the drive of the asterisk 10 turns off. Finger 15

5 is moved by the amount of overrun of the mechanism, not the exit from the left groove of the plate 14. The pallet 7 is fixed on the table 2 when the T-shaped table guides are lowered (not shown). At the same time there is a release of the capture of the pallet 7 and

0 gripping the bar 8. By turning the sprocket 10 clockwise, the bar 8 returns to its original position and, after turning off the drive, remains in the left slot of the plate 14. The pallet 7 is moved from table 2 of the machine 1 to the changer in reverse order.

The movement of the pallet 7 from the changer to the transport trolley 4 GPS is as follows.

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At the command of the GPS control computer (not shown), the transport carriage 4 takes up a position in front of the shift device (Fig. 2). The changer feeds into the shift position on the transport 4 on the fly 7. wherein the pallet grip 7 engages with the grip of the rod 8. By rotating the drive sprocket 10 clockwise, the finger 15, skirting the sprocket 12, moves to the right slot of the plate 14. Acceleration, braking and stopping When moving to a transport trolley, the pallets 7 are similar to moving 2 machines onto a table.

For the case of fixing the finger 15 on the bracket 17 attached to the link 18 of the chain 9 (Fig. 3), to move the stele-satellite 7 to the GPS vehicle 4, the finger 17 bends around the sprocket 12, not the exit from the groove of the plate 19.

The release of the grip of the rod 8 and the grip of the pallet 7 occurs when the transport carriage 4 is moved in the direction perpendicular to the position of the rod 8. By rotating the sprocket 10 counterclockwise, the finger 15 leads the rod 8 to the changer and after turning off the drive remains in the slot of the plate 19 in the event of a grip with two grooves (Fig. 1) on the vertical part of the trajectory between the asterisks 12 and 13.

The movement of the pallet 7 from the transport carriage 4 to the changer takes place in the reverse order.

When inserted into the pallet changer (Fig. 4) of the stroke doubling mechanism, the operation proceeds in a similar way. In this case, the bar 20, made in the form of a rail, is driven by movable wheels 21 fixed on the plate 22. When there are an even number of sockets for the pallets (Fig. 5), the grip of the pallet 7 is carried out with the bar grip 8 when lifting a pallet with a lifting mechanism 23.

In the case of the work of the changer with notches 7 with the dimensions of the working surface of 800x800 mm and 1000x1000 mm and more, the departure of bar 8 will be 950-100 mm and 1200-1250 mm, respectively. In this case, as a result of inaccuracies at the exit of the carriage 4 to the shift position during the coupling and disengagement of the grip of the rod 20 and the grip of the pallet 7 located on the transport carriage 4, the rod 20 may be unacceptably bent in the horizontal plane (Fig. 6).

To move the transport carriage 4 to the pallet change position 7, the pickup of the rod 8 is moved upwards to a height that allows the pickup of the pallet to be taken freely on the cart 4. To this end, the body 24 of the pallet changer 24 when the finger 15 hits the stop 26, the groove depth the gripper 27 allows (fig. 6) to rotate in a vertical plane around the hinge 25. The rod 20 rises and the gripper pallet on

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passes under the grip

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Claims (5)

Invention Formula . Pallet changer in a flexible manufacturing module. Contains a pallet feed mechanism located on the base of an annular rotary station. With pallet sockets located in the central m of the table aperture in a separate housing a longitudinally movable horizontal leg with a pallet gripping at the end and an element of the envelope with a drive made in the form of an envelope leading , tensioning and guiding sprockets, chains with a reciprocal element of coupling the position of exchanging raids with a machine and a pallet feed mechanism, characterized in that, for the purpose of the yiiponiennn design, the tanga is equipped with an additional gripper an atom located at its other end, and the clutch element is discharged. chips in the form of a finger horizontally mounted on one of the chain links, the coupling element being fixed in the central part of the rod and made in the front of the plate with the hinge with an open bottom groove, while tensioning and guiding sprockets in the chain in the areas of engagement it with a bar, corresponding to the extreme and central position of shtang. vertpka.P) - but directed down. 2. The device according to claim 1, characterized in that the number of sockets on the turntable is odd, and the sockets are located on it with the possibility of simultaneously pausing the positions of the pallets of only one socket. 3. The device according to claim 1. characterized by. that the number of sockets on the turntable is made even, while the pallet changer is equipped with pallet lifts installed in the micro-clock positions ;. pallet 4. Device in 1П1. 1 and 3, characterized in that it is provided with a mechanism for doubling the speed of movement of the pole relative to the speed of alternation of the reciprocal coupling element, made in the form of gears located on the plates, kinematically connected with two toothed racks, one of which is rigidly mounted in the housing, and friend made on 1tappge. 5. Device on PP. 1 and 4, characterized in that the inapnnpno case is fixed in the base, and the latter is provided with an abutment installed in the engagement zone of the corresponding groove of the part of the part with. with a corresponding KpaiincM iola, PPG;: g, - gi, when interacting with the mechanism, learn the pallet, and the chpore is fixed, len with the ability to fit it with a finger at all times, 5 times and 10). Thebes. 2 21 21 20 I y X (AND-