SU1425030A1 - Arrangement for automatic change of tool units - Google Patents

Abstract

The invention relates to the automation of mechanical engineering, specifically to rotary conveyor machines with devices for automatic change of tool blocks. The purpose of the invention is to increase reliability and performance by reducing the number of moving parts and, consequently, reducing the response time of the cycle by reducing the inertia of the system as a whole. The device comprises a rotor 1 of extraction, a rotor 2 of extraction control, a rotor 3 of insert with a block feed mechanism 4 connected by a tool conveyor 8 in which there are quick-change tool blocks. Removing a faulty unit occurs in the rotor 1 due to the rotation of the two shoulders arm around its axis and the interaction of the unit with the spring-loaded stem. After checking the extraction by rotor 2, a control signal is fed to mechanism 4, which transfers the block from the stationary casing 38 to the rotor 3 inserts, where under the action of the screw-type copier the block is set into the empty slot of the instrumental conveyor 8. 1Cp. f-ly, 8 ill. (L

Description

th th

SP

00

15

J5 57

The invention relates to the automation of mechanical engineering, specifically to rotary conveyor machines with devices for automatic change of tool blocks.

The purpose of the invention is to increase reliability and performance.

This goal is achieved by reducing the number of moving parts and consequently by decreasing the cycle time of a srabatagean for C4et reducing the inertia of the system as a whole,

The figure shows the layout of the device; Fig. 2 shows a section A-A in Fig. 3; a scan of the copier grooves of the extraction rotor; FIG. 4 shows a helical sector of the extraction rotor, a plan view and a scan; in FIG. 5 a control rotor, view c. plan and scan; in fig. 6 is a diagram of the interaction of the rod with the rotor limit switch control 5 in FIG. 7; a diagram of the interaction of the tool unit supplied for installation in the tool conveyor by the insert rotor with the stop of the latter; Fig. 8 is a variant of embedding the device in a rotor conveyor machine.

The device for automatic changing the tool of the 1S block contains the rotor 1 of the extraction, the control sprocket (rotor) 2, the rotor 3 inserts with the mechanism 4 for feeding the blocks ,.

In turn, the rotor 1 of the extraction consists of a drum 5 rotating on a stationary shaft 6 from the interaction of the sprocket 7 with an instrumental conveyor 8 in which the tool blocks 9 are located. On the shaft 6 the groove copier 10 with upper a and lower b profiles is fixed . On the drum 5 there are vertical pillars II, in which sliders 12 are installed with figured grooves 13 and with fingers 14. Pa, faces 14 interact with the profile a- or b of the slot-hole copier 0. On the uprights of the uprights 11 on the axes 15 are fixed the grippers vertical two shoulders pbPtaroB 16, located circumferentially at a distance equal to the pitch of the tool chain 86 The two shoulders levers 16 contain stops 17f that interact with the lower edges of the tool block I and serve as their support

o

S

0

five

0

35

40

 45

50

55

and the rollers 18, located in the shaped grooves 13 of the slide 12.

Above the double shoulders rytagi 16 on the sprocket 7 mounted spring-loaded rods 19, at the lower ends of which are fixed fork clamps 20, resting in the upper edges of the tool unit 9. At the upper ends of the rods 19 fixed rollers 2, interacting with a screw sector 22 fixedly mounted on the shaft 6 The screw sector 22 has a surface failure at the site of bending with the instrumental conveyor 8 of the rotor 1 (FIG. 4).

The rotor 2 of the extraction control, located between the rotors 1 and 3, includes an asterisk 23, having a constant engagement with the tool conveyor 8 and rotating on the stationary shaft 24. On the asterisk 23 evenly around the circumference at a distance equal to the pitch of the tool conveyor 8, spring-loaded rods 25 with plugs 26 are located, resting on the upper edges of the blocks 9 and the rollers 27 cooperating with a screw sector 28 fixedly mounted on the shaft 24,

The screw sector 28 has a dip in the surface at the site of bending with the instrumental conveyor 8 of the control sprocket 2 and the limit switch 29 fixed on the screw sector 28 in the lower part of the helical surface. The limit switch 29 has the ability to interact with the roller 27 of the spring-loaded stem 25 at the bottom for the stem 25, position (Fig. 6).

Under the instrumental conveyor S for holding the instrumental blocks 9 on the shaft 24 is fixedly fixed. flax pan 30.

The rotor 3 of the insert consists of a drum 31, on which circumferentially vertical grooves 32 are made at a distance equal to the pitch of the tool conveyor 8 having a constant engagement with the sprocket 33 of the drum 31.

The rotor 3 has a cylinder 34, an envelope of the drum 3, on the inner surface of the cylinder 34, a screw copier 35 is fixed on the bend section by an instrumental conveyor 8, sprockets 33,

The upper end of the screw machine 35 is at the level of the pallet 30

the control sprocket 2, and the bottom one - at a distance of 1/2 the height of the tool block 9 below the pallet 30 of the control sprocket 2,

The grooves 32 b of the slab 31 are provided with spring-loaded stops 36 for holding the tool blocks 9 in the working position.

The block feeder 4, which serves to send the adjusted instrumental blocks 37, includes a sleeve 38, the lower plane of which is at the lower end of the screw-type copier 35, in which the adjusted magnetic blocks 37, which interact with teeth 39 stars 40 through the ratchet mechanism 41 from the electromagnet 42.

The device for automatic change of instrumental blocks works as follows.

During operation, the instrumental conveyor 8 with serviceable instrumental blocks 9 bends around the rotor 1 of the extraction, in which the instrumental blocks 9 from being pulled under the force of gravity and the spring-loaded rods 19 are held by the stops of the two double shoulders 16 fixed by the sliders 12, during the transition to the control the sprocket 2 instrumental blocks 9 are held by the disc tray 30,

4 In the rotor 3 inserts, the instrumental blocks 9 are kept from being thrust by spring-loaded stops 36,

When a faulty unit is detected, a control system (not shown) is given a signal to the controlled arrow 43, the arrow 43 occupies position II and intersects the groove and for the time the pallet 14 of the slider 12 passes into the groove b. Next, the arrow 43 returns to its original position and the finger 1 14 of the remaining sliders. 12 continue to move along the slot a, i. Only one roller moves along slot b during the replacement period. After the faulty block 9 fails into the pallet, in slot b, finger 14 rises to spring-loaded shelf 43, lifts it, and passes into groove a. The shelf 43 is the slot forming a. Thus, the transition of the finger 14 from the groove a to the groove b is provided.

Finger 14 slider 12 moves down in a vertical

5 Q

Jt

j

0

five

0

five

the strut II and through the shaped groove 13 acts on the roller 18 of the two shoulders lever 16 and causes it to rotate around the axis 15,

The double-shouldered lever 16 gets out of engagement with the faulty tool block 9, thereby losing its lower support.

The tool unit 9 under the action of its own weight and the action of the spring-loaded plug 20 falls down, the caMbijj carried out the extraction.

Upon further movement, the empty socket of the instrumental conveyor 8 passes to the rotor 2 of the extraction control, and the truncated rod 19 with the fork-grip 20 due to the interaction of the roller 21 with the helical sector 22 rises, and the fork 20 again sits on the edges of the tool block 9,

When an empty socket passes through the rotor 2 due to the absence of a support (instrumental unit), the spring-loaded plug 26 with the stem 25 falls down and closes the limit switch 29 when moving in a lowered state, which sends a signal to the electromagnet 42 of the block feeder 4 ,.

If, for any reason, the block in the extraction rotor is not removed, the closing switch does not close, thereby checking the extraction,

The electromagnet 42 rotates the sprocket 40 through the snares' mechanism, which with the teeth 39 acts on the adjusted tool block 37, which is in the fixed holder 38, and causes it to skip A into the groove 32 of the drum 31,

In the groove 32, the gripped tool block 37 is pushed up by the action of the screw driver 35 covering the cylinder 34 until the spring-loaded stop 36 locks the tool block in the working position, thereby inserting it.

Upon further operation, the block 37 goes to the rigid pallet, and the spring-loaded stem 25 of the control sprocket 2, due to the interaction of the roller 27 with the screw sector 28, returns to its original position and sits on the edges of the block with a fork 26.

In the absence of replacement of the blocks, the spring-loaded rods 19 and 25 of the rotor I of the extraction and the control sprocket 2 are kept in the initial position by the screw sectors 22 and 28 through 21 and 27.

j In the following operations: extracts: and inserts are repeated in the same manner.

Claims (2)

1. A device for automatic replacement of instrumental blocks, containing sequentially installed rotors for extracting and inserting instrumental blocks with sockets for the latest, enveloping them with a tool-locking tool holder set on each of; , and around the axis of the rotor screw sector, the screw surface of which is arranged to interact with the rods, each of which, in turn, is placed with the possibility of interaction in one from the positions corresponding to the absence of a tool block in the socket, with a limit switch, and the extraction rotor is equipped with ejector pushers of blocks from the sockets and sector, while the ejector blocks are made similar to the spring-loaded rotor rotor control rods, and the rotor insert cage is placed outside the latter, and the feed mechanism tools A new conveyor, a control system, with a JQ of mental blocks, is equipped with a rotary. than the insertion rotor has a holder with instrumental blocks and a feed mechanism of the latter, and each rotor withdrawal slot includes a block retaining gripper arranged to interact with a vertically movable slider with a slider, characterized in that installed with the ability to interact with the tool blocks in the cage, and feed them into the slot 25 of the rotor insert. 2. The device according to A.1, about tl and - which is so that the capture of the extraction rotor is made in the form of a two-arm lever fixed on the axis and productivity, it is supplied with gg in the vertical plane on the slider by the rotor control Extraction - a shaped groove is made, in which the possibility of moving over the latter is mounted on a roller mounted on one of the arms of the lever, the other arm of which is located with the possibility of instrumental blocks placed between the extraction and insert rotors, made with a final spring-clamp connected with the control system of the end valve 35 by fixing and releasing blocks. JQ mental blocks are equipped with swiveling an asterisk-rammer installed with the possibility of interaction with the instrumental blocks located in the holder and feeding them into the insertion rotor sockets 25. 2. The device according to claim 1, about tl and - which is so that the pickup of the extraction rotor is made in the form of a double possibility of moving over the latter a roller mounted on one of the arms of the lever, the other arm of which is located with the possibility of by fixing and releasing blocks. one h 3 BUT FiveM : FIG. five L : L} | R 7 J Fig, 1 FM, in