SU915336A1 - Device for stamping with spinning - Google Patents

Description

The invention relates to the processing of metals by pressure, and more specifically to machines for stamping products with running around, and can be used for the manufacture of products of various shapes, including asymmetrical, as well as products with an extended axis.

There is a device for stamping with running, containing mounted on the bed frame can be rotated drive table with the lower part of the stamp, located coaxially with the lower upper movable part of the stamp, mounted on a tool holder housed in a spherical support of the bed, as well as an actuator rocking motion of the tool holder.

The known device for stamping. Running has the following disadvantages: low resistance of the spherical bearing and its high energy consumption ’, low accuracy of the products obtained; limited technological capabilities, since using known devices it is possible to obtain products only axisymmet-. rich form.

The purpose of the invention is to improve the quality of processed products., The reliability and durability of the device, the expansion of technological capabilities by providing the ability to process non-circular products,

The goal is achieved by the fact that the device containing mounted on the bed frame can be rotated drive table with the lower part of the stamp, located coaxially with the lower upper movable part of the stamp, mounted in a spherical bearing statny, as well as the Executive mechanism rocking motion of the upper part of the stamp with a drive made in the form installed in the spherical support of the frame of the two shoulders of the lever, a pair of coaxial axle boxes mounted in the frame with the possibility of rotation, drive rotation of axle boxes, the axis with a spherical support in the middle The spherical support of the axis is mounted in the double-arm lever, each end of the axis is placed rotatably in one of the axle boxes, the mount of the upper part of the stamp is mounted on one of the shoulders of the double-armed lever, and also pivotally connected to the other shoulder of the double-arm lever of the screw shaft with a drive horse, fixed in a steel with the possibility of rotation. In addition, the device can be stocked.

5 the lever-hinge system, in the double-arm lever there is a groove in which the rocker stone is placed, while the axis is made eccentric, the hinge-lever system is articulated

10 with the axis and drive of the actuating mechanism of the swinging movement of the upper part of the stamp, and the spherical support of the axis is located in the rocker stone.

The drive nut is made either in the form of

, 5 rigidly connected with it an wings with a rocker stone, an eccentric shaft articulated with it and a gear reducer connecting the eccentric shaft with an actuator drive of the upper part of the stamp, or in the form of an engine with a gear reducer coupled to the nut.

In addition, the stove device may

25 to be equipped with a drive translational movement in the frame perpen. dicular to the axis of the stamp.

In FIG. 1 shows the general principle,

digital circuit of the device (option

30 with unregulated swinging movement); in fig. 2 shows section A-A in FIG. one; in fig. 3 - a general schematic diagram of the device with the swinging and reciprocating movement of the upper part of the stamp ·; FIG. 4, section B-B in FIG. 3; fyu, 5 section bb in fig. 4 (with the execution of a swinging drive from an adjustable individual motor).

Device for stamping with running in (see Fig. 1 and 2) is constructed as follows.

The upper part 1 of the stamp is fixed on the lower end of the shoulder of the two shoulders lever 2, and its lower part 3 is freely mounted on the die plate 4. The lever 2 through the rocker stone 5 through the sleeve 6 is pivotally connected to the axle 7, pivotally connected to the bush 8, which can be rotated at some angle by means of thrust 9. The axis of rotation of the box 8 is eccentric to the axis 7, therefore when the box 8 is rotated, axis 7 will fall down or rise up, and with it the lever 2 and the upper part 1 of the stamp will be lowered or raised by

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adjustment H, This is achieved by changing the distance between parts 1 and 3 of the stamp and, therefore, changing the height of the workpiece, laid in the lower part of the stamp. The axle box 8 has two machines connected by a bridge in the frame 10 of the machine, between which the lever 2 is placed (the box 8 rotation drive is not shown in the drawings). The lever 2 is equipped with a spherical bearing support 11 located between the upper part 1 of the stamp and the axis 7. The second lever arm 2 is hinged by means of the spherical supports 12 and disc springs GZ connected to the shaft-screw 14. The latter passes through the groove in the lever 2 and can move along its the longitudinal axis in the bearings 15 of the frame 10. The axial movement of the shaft-screw 14 is connected to the nut 16, rigidly connected to the link 17. The axial movement of the nut 16 is limited to the frame 10. The linkage 17 is rocked by means of the rocker stone 18 and eccentric gear shaft 19, rigidly connected with the shaft 20. Gear 21 21 of the gear reducer (busting-guitar) is rigidly connected to the latter. Gear 21 receives movement from the gear 23, which sits on the shaft 24 connected to the drive motor (not shown ). The gear ratio of gear teeth 2322-21 is chosen so that for a full revolution of the eccentric shaft 19, the movable part 1 of the stamp oscillates by the angle φ, and the gear 23 with the drive shaft 24 rotates a few turns. Shaft-screw 14 is collapsible for easy installation. Bearing 25 of this shaft is attached to it on the thread. The lower part 3 of the stamp is the matrix, which lay the workpiece blank.

The matrix 3 is made cylindrical centering collar, through which it is centered along the axis of the stamp and is protected from displacement during the formation of the product. The matrix 3 is rigidly connected with the table 26, which in turn is rigidly connected to the worm wheel 27 resting on the plate 4. The worm shaft 28 interacting with the wheel 27 and connected to the motor (not shown)

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attached to the housing 29, the housing 29 is made bearing support worm shaft 28. The matrix 3, thus, can be rotated around the vertical axis of the stamp, the Matrix 3 has a Central hole for the passage of the ejector 30, driven by a hydraulic cylinder 31 and returned to the original, 0 lower position spring 32.

The proposed device works as follows

In the initial position, the axis · 7 is in the -most upper position. The drive shaft motor 24 is included. The workpiece is processed by the robot into matrix 3. The motors drive the rotation of the worm 28 and rotate the axle box 8. 25 movement the rocker 17 turns the nut 16. in this case, the screw shaft 14 receives an axial movement of the bearings 15. When the axial motion of the screw shaft 14 by the springs 13 and 12 supports a cart ₃₀ acts on the rocker-arm 2 and it produces deviation of the vertical arm th die axis at an angle B ', the value of which is determined by a constant length of the wings 17, the magnitude of radius of the eccentric 19.

³⁵ The upper part of the stamp is swinging. At the same time, the axleboxes 8 by means of a lever 9 and a drive (did not show in the drawing), for which the hydraulic motor is mainly used, rotate around the axis and lower the axis 7, and with it the lever-link 2 and the upper part of the stamp 1 to the workpiece. It is deformed and shaping the product. The blank at this time can stand on the spot or rotate together with the matrix 3. The rotation of the latter is reported by the motor-motor through the worm wheel 27 and the worm 28. Lowering the upper part of the stamp and turning the matrix 3 is done to obtain the specified dimensions of the product. After that, the rotation of the axlebox 8 is reversed and the upper part 1 of the stamp is retracted to the initial position from the matrix 3. The rotation of the matrix 3 is stopped. Turns on the hydraulic drive (in the drawing

five

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not shown), and in the cylinder 31 is supplied under pressure fluid, under the action of which the ejector 30 rises and lifts the product from the matrix 3. The robot removes the finished product and lays the next workpiece into the matrix. The cycle is over.

In order to intensify the process of forming and expanding technological capabilities, the device is up to. fully equipped with mechanisms,. shown in FIGS. 3, 4 and 5,

Axis 7 is made in the form of an eccentric shaft 33 with a lever 34. Shaft 33, turning at some angle; makes an oscillatory motion and reports the same motion to the lever 2 and the upper part 1 of the stamp, as a result of which it simultaneously and synchronously with the swinging motion receives a reciprocating (discrete) motion. For this purpose, the lever 34 is pivotally connected to the connecting rod 35 of the hinge-crank mechanism, the drive shaft 34 is made with the crank 36, and the eccentricities and cranks of the shafts 24, 19 and 33 are installed in phase so that a deforming force is applied to the workpiece during synchronous swing and translational motion of the upper part of the 1 stamp.

In addition, the plate 4 is made with guides, and the frame 10 - with a groove under them to allow the plate 4 to move along the bed 10 in a horizontal plane.

This movement is performed both simultaneously with the rotation of the matrix 3 around the vertical axis of the stamp, and independently of this rotation. The plate 4 is driven by a screw mechanism mounted in a “bed 10 (not shown in the drawings). Offset of the plate 4 with the matrix 3 relative to the axis of the upper part of the stamp allows to obtain products with an elongated longitudinal axis, as well as products of asymmetric shape. In order to control the magnitude of the swing angle, the drive shaft screw 14 can be

is made about G of an individual (autonomous) engine, as shown in FIG. 5. In this case, the nut 16 is rigidly connected to the worm wheel 37 of the gearbox. The worm shaft 38 of which is connected by a bevel gear 39 with a hydromotor 40 controlled by a spool 41. pump 42.

All movements with the exception of reciprocating with a constant stroke of the upper stamp can be adjustable and controlled both as a function of the path (or angle of rotation) and as a function of time. This significantly expands the technological capabilities of the device. The effect of stamping with running in this way is achieved by rocking the upper part of the die and the rotary movement of the lower part. Changing the height of the workpiece is carried out by mechanical movement of the upper part. stamp - change (adjustment) interstamp distance - relatively fixed and rigid plane of the press table (matrix plate), which increases the accuracy of the product,

The introduction of reciprocating motion with a constant stroke, synchronous to the swinging movement of the upper part of the stamp allows to intensify the stamping process with running by reducing the friction between the upper part of the die A and the workpiece. The quality of the resulting products is significantly increased due to a more complete study of the metal over the cross section. Also increases the resistance of the stamps by reducing their contact time with the workpiece.

The plate of the lower part of the stamp with the possibility of translational displacement to the axis of the upper part of the stamp by a specified amount and the ability to control the swinging movement also expand the technological capabilities of the device and, in particular, provide the possibility of manufacturing products with an elongated axis and asymmetric shape.

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Claims (5)

1, PUNCHING STAMPING DEVICE, containing a driving table mounted on the bed plate with the possibility of rotation with the lower part of the stamp, coaxially located lower upper mobile part of the stamp, mounted in the spherical support of the bed, as well as an executive mechanism for rocking movement of the upper part of the stamp with the drive, characterized in that, in order to improve the quality of the processed products, reliability and durability of the device, expanding technological capabilities by providing the ability to process non-circular products, the executive mechanism of the oscillating movement of the upper part of the stamp is made in the form of a two-arm lever mounted in a spherical support of the base box, mounted in a frame with the possibility of rotation, drive in the gate of the axle box, axis with a spherical support in the middle part, while the spherical support axis is mounted in the double-shoulder lever , each end of the axis is placed rotatably in one of the axle boxes, on one of the shoulders of the two shoulders of the lever there is a mounting unit for the upper part of the stamp, which is also hingedly connected to the other shoulder of the two shoulders of the screw shaft with the drive nut fixed in the frame so that it can be rotated, 2. Device by π. 1, characterized in that it is equipped with a lever-hinge system, in the two shoulders of the lever, a groove is made in which the rocker stone is placed, the axis is made eccentric, the lever-hinge system is articulated with the axis and the actuator of the rocking movement of the upper part of the die, and the spherical axle support is placed in the rocker stone. 3. Device by π. 1, characterized in that the drive nut is made in the form of a rigidly connected with her backstage with rocker stone, articulated with him eccentric shaft and a gear reducer connecting the eccentric shaft with the actuator rocking motion, the upper part of the stamp. · 4. The device according to π, 1, characterized in that the actuator nut, ki is made in the form of articulated with her motor · with gear reducer. 5. The device on π. 1, characterized in that the plate is equipped with a drive translational movement in the frame perpendicular to the axis of the stamp. 511 915336 1 915336 2