SU1433594A1 - Gripper feeding device for press - Google Patents

Abstract

The invention relates to the cold working of metals by pressure and can be used to transfer workpieces between the working positions of a multi-position press. The goal is to increase reliability in operation. The device contains mechanisms of transverse, longitudinal, vertical movements (MS1), (PP) and “(VP), respectively, lines 1 with grippers 2, 3, 4, 5, a mechanism for synchronizing transverse trans. rooms, spring-pneumatic compensators for energy losses in 1SP and PP, fixation units. WFP consists of line g

Description

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ek 1, frames 6, levers 9 pivotally connected with beams 8. The last levers 11 of the PP mechanism are suspended on the sliders 14 of the VP mechanism, driven by pneumatic cylinders 15. The transverse and longitudinal movements of the rulers 1 are carried out by free oscillations of the levers 9 and P SHP and PP, which are fixed by snaps 35, 36, 48, 4 and hooks 40, 53, and released by electromagnets 46, 47, 59. Loss compensators in the GPP and PP consist of springs 25, 33 and pneumatic cylinders 29, 31, which are dropped before dropping latches pre-compress these springs, and the last at the beginning of the course Iffln and PP provide energy to the swinging elements of the mechanisms. The work of the transferor is automated. 4 3.p. f-ly, 8 ill.

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The invention relates to the cold processing of metals by pressure and can be used for moving the workpieces between the working positions of a multi-position press.

The aim of the invention is to increase the reliability of operation.

FIG. 1 shows a grapple feeder to the press; in FIG. 2, the same plan view; in FIG. 3, view A in FIG. one; in fig. 4 is a section BB in FIG. one; in fig. 5 shows a section B-B in FIG. I; in fig. 6 a section of YYY in FIG. 3; FIG. 7 is a section of the DD-D in FIG. five; in fig. 8 is a diagram of a clamshell feeder to the press.

The gripper feeding device to the press contains clamshell lines 1 with spring-loaded grippers 2 - 3, lifting mechanism, lifting drive, mechanism for longitudinal movement of grab bars, mechanism for transverse movement of grab lines, mechanism for synchronizing transverse movement of grab lines, mechanisms for fixing grab lines in the extreme positions with longitudinal and transverse movement, dampers-compensators.

The mechanism of transverse movement of the rulers is made in the form of four horizontal frames 6 rigidly fastened to the consoles i, horizontal frames 6 placed in pairs to the right and left of the press 7 9 are made on rolling bearings. The frames 6, the levers 9 and the traverse 8 form articulated parallelograms, in which the traverses 8 are stationary, and the frames 6 have the ability to swing on the levers 9, making plane-parallel reciprocating movements, remaining in a horizontal position relative to the traverses 8 and moving the ruler 1 in the transverse direction. In the vertical position of the levers 9, the claws 2-5 of the rulers 1 are in a closed position, and when the rulers are set aside for the stroke, in the open position. The longitudinal movement mechanism is associated with the supports 10 located on the side of the press 7 above the crossheads 8, and contains levers P, which are drawn and have spaced eyes Z and the same distance between the hinges of the Arm to the length of the lever. The cross members 8 with the transverse mechanism and the rulers 1, due to the levers 11, are able to swing with an oscillation amplitude equal to the feed stroke during longitudinal movement. The lifting mechanism is made in the form of two housings 12 fixed on the press 7 bed (base), in roller guides 13 of which drive sliders 14 are placed, bearing supports 10. The drive sliders 14 are pneumatic power tsipindra 15 fixed on the housings 12 (base) and having the ability to interact with sliders 14, carrying the mechanisms of longitudinal and transverse movement with rulers 1. Mechanism

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synchronizing cross sweeps of the rulers 1, is made in the form of arrangement X on each side of the press of two hinged rhombuses consisting of four arms of levers 16 and two bottom levers 17, which are hingedly mounted on the grass lines 8 in brackets 18 on axes 19 The ends of the levers 17 are connected by means of the levers 16 with 20 half-shells 21 arranged in the guides mounted on the brackets 18. The latter are connected by connecting rods 22 to the hinges 23 mounted on the arms of the levers 9.

The dampers-compensators in the transverse displacement mechanism are made in the form of a spring 25 encased in support cups 24 placed in a guide sleeve 26 mounted in a vertical rack 27 mounted on the cross bar 8. On the frames 6, adjustable stops 28 are fixed, pneumatic supports are fixed on racks 27 power cylinders 29 mounted with brackets 30 on racks 27. At the same time, an adjustable stop 28 and a rod of a pneumatic cylinder 29 have the opportunity to interact with opposite cups 24, and a vertical rack 27 covers aets the PAM Coy 6.

Pneumatic cylinders 3 and 32 are fixed on the cross-arms 8 with the possibility of interaction with the springs 33 and 34 of the dampers-compensators mounted in the sliders 14 of the lifting mechanism. The mechanism for fixing the transverse movement of the rulers 1 is made in the form of four snap-levers 35 and 36, one ends of which are articulated pivotally with the housings 37 mounted on vertical posts 27, and the others are equipped with rollers 38 and 39, having the ability to interact respectively with hooks 40 and 41 fixed in bounds 6. Hooks 40 and 41 have inclined planes I. In housings 37, articulated beams 42 are installed, having perpendicular pivot axes of the hinges, and in latches-levers 35 and 36 are mounted by means of an axis 43, pushers 44 having e guiding parts housed in the orifices of the pivot beam 42, the pushers 44 are arranged vertically and spring-loaded with springs 45 supported in the pivot beam 42 so that the springs 45 create the clamping force of the latch levers 35 and 36 through the

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The cables K to the housings 37 and hold the levers 35 and 36 in the positions corresponding to their working positions when coupled to the hooks 40 and 41. The actuators of the pushers 44 are electromagnets 46 and 47 mounted on the housings 37.

The locking mechanism of the longitudinal movement of the rulers i is made in the form of four similar snap levers 48 and 49 installed two at a time symmetrically relative to the pneumatic cylinders 31 and 32 in the housings 50 fixed on the cross-arms 8. The rollers 51 and 52 of these levers have the ability to interact with the hooks 53 and

54, mounted on the slide 14 of the lifting mechanism. In the housings 50 are installed pivotally swivel traverses

55, and the latches-levers 48 and 49, using an axis 56, assembled the pushers 57 with springs 58, with the help of which the levers 48 and 49, which have stops K, are kept in the working position. The drive of the pushers 57 is made in the form of electromagnets 59 and 60 mounted on the housings 50. The stops 28 are made adjustable in length.

The rollers 38, 9, 51 and 52, as well as the articulation of the levers 35, 36, 48 and 49, respectively, with the housings 37 and 50, are made on rolling bearings. Spring-loaded clamps 2-5 are equipped with contactless sensors 61-64, which give electrical signals during the gripping of the workpieces and compressing the springs of the respective grippers (not shown). Hooks 40, 41, 53 and 54 are equipped with contactless sensors 65 - 68, operating respectively from levers 35, 36, 48 and 49, which emit electrical signals when they close the corresponding hook levers with hooks. The upper and lower positions of the sliders 14 are fixed by the contactless sensors 69 and 70, which give electrical signals at the respective positions of the sliders 14. Positions 71-74 denote slots.

Grab feeder to the press works as follows.

In the initial position before punching, the ruler 1 is in the lower position in the opened state and occupy the extreme left position relative to the press 7. In this case, the frames 6 and the levers 9 are fixed by the latches-levers 36, the traverses 8 and the levers 11 - by the latches-levers 48, and the sliders 14

5 1433594.

the lifting mechanism is in the lower latch-levers 48 with hooks 53. Ram-position. After installing the boot 6 with the rulers 1, under the action of a strong device (not shown), the weighing weight, as well as additional efforts to position I and the working stroke of the spring 33, press the control system (not until the half free vibration time) the press gives an electric signal motion relative to the upper hinge to turn on the electromagnets 47. levers 11, moving the ruler 1. At the same time, the bark of the magnet 47 is drawn in the direction from left to right. At the end of the magnetic fields and, creating a force for this movement, the latch levers 49 LIA on the pushers 44 direct the frames 6 in the right position, from the bottom up, turn the latches-When electrical signals are received, the levers 36, dropping their rollers 39 words from the sensors 68, the electro hook system 41, and freeing the frames 6 of the pneumatic control switches off the fixings. Under the action of the weight of the frame 5, the pneumatic cylinders 15 and the switches 6 with the rulers 1, the grippers 2-5, the pneumatic cylinders 29, 31 1 and the levers 9 move, completing and 32. At the same time, the piston cavities free oscillatory motion from the cylinders 15 and 31 cavities relative to the upper hinges of the lever cylinders 29 and 32 are connected with the atmosphere 9. When the pitch 9 of the pitch approaches ver-20 by Feroy, and in the piston cavities of the cylindrical position of the adjustable pads 29 and 32 to the rod end, the cylinders 28 come into contact with the glass-lindr 31 compressed air enters the and 24, and grippers 2nd zagotovkoy.Polzuny lifting mechanism 14, under the action comprised within the first position. The force of gravity lowers in the bottom this kinetic energy of the moving 25 position and is fixed by the sensor; the parts are transferred to the springs 25 and springs 70. Simultaneously with the lowering of the half of the grips 2. Simultaneously, the shafts 14 are shifting the displacement of the rulers 1 rollers 38 latches lindrov 29, 31 and 32. In this case, the pneumatic levers 35 meet on their way the cylinders 29 compress the springs of the inclined surfaces And the hooks 40, zo (giving them the energy needed to roll in through them, turning the lever to compensate for the losses 35 and with spring pressure 45. After that, when the grips are closed, as well as the rollers 38 will pass the upper losses, which will occur during the after-point of the inclined planes and hooking the grippers). The rod 74 40, the latch levers 35, under the action of the pneumatic cylinder 31, after the spring 45, the rollers enter the rollers.38 in engagement, retracts into the cylinder 31, the hooks 35, and fix the linear position. ki 1 in a closed state, holding the pneumatic cylinder 32 after the workpiece clamped by clips 2, Electron-switching through the rod 72 compresses the critical signals from the sensors 6140 34 (common energy, 1 (fig. 3) and 66 (fig. 5) through the friction in the hinges of the longitudinal mechanism that compensates for losses on the electropneumatic control of the mechanism, the pneumatic displacement and actuation of the retractor 15 and 31 (phi 6) are activated. Compressed lye-levers 48 during the course of the mechanism air entering the piston cavities45 longitudinal movement to the left). With cylinders 15, the slides 14 in the entry of electrical sip1als raise the upper position fixed by the sensor-from sensors 70 fixing the bottom com 69, and entering the piston in-position of the creep 14, the system of the cylinder 31, the rod 74 compresses the electromagnets 46, spring 33 (co-operating energy, which, acting on the pushers 44, to compensate for the losses, locks the levers 35 from the hooks of the longitudinal movement of the pawns 40, releasing the mechanism of cross-hinge and hinge operation move and under fixing. Under the liquor-levers 49) .. When the force of the springs 25 is applied to the regulating electric signal from the sensors, the stops 2B of the frame 6, Rulers 1, 69 fixing the upper position, the clamps 2-5 and the lever 9 are deflected by the sliders 14, the system control in the direction of the stroke of the ruler 1, makes electromagnets 59, which, possibly, free oscillatory motion affecting the pushers 57, dropping off the upper hinges of the levers

9 and release the workpiece from the grippers 2, installed on the second position. The open position of the ruler t is fixed by sensors 65 mounted on hooks 41. Electrical signals from sensors 65 turn on the press for a working stroke and simultaneously turn on magnets 60 and switch pneumatic cylinders. At the same time, stamping is performed at the second position, actuation of the latches-levers 49 and return of the frames 6 to the left initial position, and retracting the rod in the pneumatic cylinders 29. The left-hand side positions at the longitudinal and cross-section of the frame 6 are fixed by means of levers 49, on which electrical signals are supplied to the control system by sensors 67. An electrical signal

Nominal movements, characterized in that, in order to improve reliability of operation, it is equipped with sliders installed at the base of the end of the stroke, which can be displaced to the transmitter from the press control system, and electrical signals from sensors 67 include electromagnets 47, and the cycle of operation is repeated. The symmetry of the transverse movements of the rulers 1 is synchronized through the sliders 21, the connecting rods 22, the hinges 23 and the levers 9. The accuracy of moving the rulers in the longitudinal direction is provided by the levers 9 and 11 of the mechanisms of transverse and longitudinal movements with spaced eyes. In this case, the traverse 8, the levers 9, the frame 6 from the vertical direction, and the dampers-compensators fixed on the traverses and on the sliders, the supports are mounted on sliders, adjustable stops along the gauge25 are installed on the clamshell lines with the possibility of interaction between them and one from the deformers-compensators, fixed 1 h traverse, the transverse drive 30 of the puppy is mounted on the traverse and connected with the dampers-compensators fixed on the traverse, the drive of the longitudinal movement of the clamshell mounted on the traverses with

neyk 1 form in the direction of the possibility of interaction with the damping of the I5E

Dolny the movement of the rulers 1 rigid structure, moving with the help of levers 11.

Claims (3)

1. Grab the feeding device to the press, containing the base, the clamshell with spring-loaded Zahra-compensators mounted on the sliders. 2. Device POP.1, characterized in that the drives under the transverse and longitudinal movements grab rulers are made in the form of power cylinders .. 3. The device according to claim 1, characterized in that the dampers located symmetrically from the 45 compensators are made in the form of springs, relative to the feed axis and installed 4. The device according to claim 1, about tl and with the possibility of a lift, which is longitudinal, in that the mechanisms and transverse displacement, the fixation of the clamshell in the extreme lifting clamshell, made-positions with longitudinal and transverse in the form of supports, connected with drive Q n displacements made in the form of lifting, and traverse, the mechanism of longitudinal-spring-loaded-latch levers, tare movement of the clams ruler, made in the form of t r, hinged traverse with supports and mounted on the supports can be rotated in a vertical plane parallel to the feed axis; a mechanism for transverse movement of grab rulers, made in a rotating type levers, hinged at one end on the crossbars symmetrically with respect to the feed axis, can be rotated in a plane, perpendicular to the feed axis, and hingedly connected with free ends to the clamshell ruler, and adjuster) 1x along the length of the stops, mechanisms for synchronizing the lateral movement of the clamshell: rulers mounted on cross-arms, drives of transverse and longitudinal movement of grab rulers and mechanisms of fixing grab rulers in extreme  positions at longitudinal and transverse Nominal movements, characterized in that, in order to improve reliability of operation, it is equipped with sliders installed on basic directions, and compensating dampers mounted on crossbars and sliders, the supports are mounted on sliders, adjustable by dpi25 not stops are mounted on grab rulers with the possibility of interaction between them with one of the expansion joints, fixed for 1 hour of the traverse, the transverse drive 30 of the shaft is mounted on the traverse and connected with the dampers of the compensator, fixed and traverse, longitudinal movement of the drive lines is mounted on the gripper cross member Ramie-compensators attached to the sliders. 2. Device POP.1, characterized in that the drives transverse and longitudinal movements grab rulers are made in the form of power cylinders .. 3. The device according to claim 1, distinguished by the fact that dampers mounted on traverses, cyclists mounted on sliders and grab rulers with the possibility of gg interaction with strapped lever latches, rotation actuators of latches-levers having a rotary traverse, are hinged on trappers, pushers, movably set 9143359 innovated in pivotal traverses and pivotally connected with spring-loaded lever-latches, and electromagnets attached to the traverses with the possibility of interaction with and pushing U1 5. The device according to n.l; characterized in that the mechanism for synchronizing the movement of the grab bars is made in the form of two shoulders levers hinged on cross-arms, sliders mounted on cross-bars with the possibility of transposition perpendicular to the feed axis, levers, each of which is pivotally connected to one end of the double-arm lever and from one of the sliders, and connecting rods pivotally connecting the sliders to pivoting levers . 2ff /// /// X /// /// /// /// /// // l Y / / - / 7 / /// // // 7 8id and 9ag.Z 2 25 26  Rig. /four Editor E. Kopcha 7 59 in Compiled by I. ment gov Tehred A. KravchukKorrektor L. Pilipenko ss