SU1433537A1 - Arrangement for feeding and supporting billet to sheet-bending press - Google Patents

Abstract

The invention relates to the processing of metals by pressure and can be used in forging and mechanical engineering. The goal is enhanced functionality. The device comprises a table plate 21 with billet tacks 22 deployed relative to the axis of the table body 14 from the controlled hydraulic motor 23 associated with the table plate by means of a gear 24 with gear 25 and a gear wheel 26. The table body is mounted with the possibility of rotation in a vertical plane on The cylinder rods 7 and 8. The cylinder bodies are mounted on trolley 6 .. Cylinder 7 is rigidly fixed, and cylinder 8 is hinged. The cart is moved along the guides 2 by plunger cylinders 27 and 28. Their rods 29 and 30 are connected to the base 1, and the cylinders to the cart. On the basis of the fixed three sensor J3. When the trolley with the workpiece is moving, one of the sensors is triggered, which gives a signal to the countdown of the path of the trolley until the central sensor is activated. The latter provides control of the table plate rotation before the edge of the workpiece is installed at a given angle and at a certain distance from the axis of the bending matrix 31. 7 Il. th and 1B and // / (O (L with 4 with with with SP with Wut.t

Description

The invention relates to the processing of metals by pressure and can be used in forging and pressing machinery.

The purpose of the invention is to enhance the functionality by using presses as c. the course of the lower beam, and with the course of the upper beam; through the use of without readjustment with different geometry of the bending tool and the thickness of the workpiece; by providing support for the workpiece when bending the workpiece at an angle to the edge and when bending the workpiece from all sides; due to the increased mass of the workpiece at certain times the device measures.

FIG. 1 shows the proposed device, in-id in the plan; FIG. 2 is a section A-A in FIG. ; in fig. 3 - ras cut bb in fig 2; in fig. 4 is a section bb in FIG. 2; Fig, 5 is a section of GG in Fig, 2; in fig. 6 - section d-ka fig.-2; in fig. 7 - node I fig.Z,

The device comprises a base 1 with guides 2 and 3 Guides. covered by roller bearings 4 and 5j located on trolley 6 On; There are two pairs of cylinders 7 and 8 located in the bed. The cylinders 7 are fixed on the trolley with half-rings 9. The cylinders 8 are mounted with half-rings with GH axles rotating in bearings 1 I located in the housings 1 attached to the trolley.

On the cylinder rods, with the possibility of rolling on axles x 3, a housing 14 of table 5 is installed, in which, using covers 15 and 16 and bearings 7 and 18, a splined shaft 19 is rotatably mounted, on which a table 21 with magnetic clamps 22 is fixed with a nut 20. On the table body there is a hydraulic motor 235 gearbox 24 with gear 25, which is meshed with a gear wheel 26 mounted on the plate 21 of the table. The cart is placed using two plunger cylinders 27 and 28, the rods 29 to 30 of which are connected to the base, and the cylinders to the cart. Three sensors 33 are located at the same distance from the axis of the matrix 31 mounted on the press table 32 in the feed plane. Moreover, the sensors are located in a row with equal pitch and the middle one on the feed axis parallel to the guide rail.

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The device works as follows.

In the initial position, the cart is in the extreme position from the press brake on the loading axis, f The rod 30 of the cylinder 28 is extended, and the pin 29 of the cylinder 27 is retracted. The cylinder rods 7 and 8 are in their lowest position. The upper plane of the magnetic claws 22 coincides with the upper plane of the matrix 3. The workpiece is installed on the table plate 21 with the help of loading means, positioned by the edge being processed along the axis of the strand matrix.

Software control device. . The control of the operation of the press and the device is equipped with a control program with known parameters of the tool and the workpiece. The device is ready for operation. A command is given to unload the workpiece into a press brake. Magnetic clamps 22 are activated and the workpiece is fixed relative to the table plate 21. After the tacks have been actuated, the cylinders 27 and 28 move the carriage 6 in the direction of the press brake. When the carriage with the workpiece is moving, one of the extreme sensors 33 is triggered, which gives a signal for counting the path of the carriage to the center sensor 33, thus providing complete information for turning control the table plates 21 until all three sensors 33 are activated, i.e. setting the workpiece parallel to the axis of the matrix stream at a known distance. The control unit gives the command to move the carriage dp to feed the workpiece to the press brake punch.

Controlled hydraulic cylinders 27 and 28 work out the movement and give a signal to move the punch down. When the workpiece is reached, a signal is issued for the next movement of the workpiece, depending on the stroke of the punch. The control program provides movement of the trolley 6 with the help of controlled hydraulic cylinders 27 and 28, as well as lifting and tilting the table body 14 and the table plate 21 associated with it with the help of controlled hydraulic cylinders 7 and 8.

Upon completion of the bend, the control program provides control of the removal of the workpiece from the bend zone, with

Depending on the part, the retraction will occur when the table plate 21 is horizontal and in the state turned to an angle of up to 75. The control program rotates the table plate 21 from the controlled hydraulic motor 23 through a kinematic chain consisting of a gearbox 24, gear 25 and a gear wheel 26, to the required angle for the subsequent bends. Upon completion. the required number of bends, the product is unloaded, the cart with the plate 21 of the table in horizontal position is fed by hydraulic cylinders 27 and 28 to the loading position, thus completing the automatic cycle for processing the workpiece.

The advantages of the proposed technical solution in comparison with the prototype are that it provides accurate products in a wide range of processed products and does not require device adjustment when the dimensions and shape of the product and tool are changed, as well as bends at any angle to the edge. and the implementation of bends from several sides of the workpiece, as well as the possibility of removing the workpiece from under the press punch at an angle to the feed plane,

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Claims (1)

Invention Formula a cube mounted on mounted on the basis of the guides with the possibility of translational movement in the direction perpendicular to the axis of the bend of the bending die , and a mechanism for controlling the mechanisms, characterized in that, in order to expand the functionality, the table is complete with shdm of the body and plate, the clamps are mounted on the plate, while the table plate is pivotally mounted relative to the body and made drive, and the table lifting and turning mechanisms are made in the form of four hydraulic cylinders, one pair of which is rigidly fixed with their cases on the trolley, and the bodies of the other pair of hydraulic cylinders are rotatably mounted on the trolley The hinge is connected with the hydraulic cylinder rods, and the system for controlling the mechanisms of the table-moving table is equipped with three sensors to control the position of the front edge of the workpiece relative to the axis of the handle. matrix defined based on parallel axes Ruch River matrix, wherein the sensor is disposed in the middle A device for feeding and supporting 35 a plane passing through the axis of the guides of the trolley, and the extreme ones - symmetrically to this plane. blanks to the press brake, containing the base, the driving carriage passing through the axis of the carriage guides, and the extreme ones - symmetrically to this plane. lc Theb.6 7