SU1368193A1 - Drive of working tools of forging machine - Google Patents

Abstract

The invention relates to forging and stamping, in particular, to the design of the drives of workers, forging machine tools. The purpose of the invention is to increase the drive reliability and performance. When the crank is rotated and the corresponding: movement of the connecting rod 16, the sleeve 17 is rotated with double-sided internal cutting of the opposite direction. This causes axial movement of the screws 19 and 20, which in turn move the plungers 13 and 14. The latter displaces the working fluid under pressure from the cavities 42 of the auxiliary cylinders 11 and 12, from where it is transferred through main lines 9 and 10 to the power cylinders. This causes the movement of moving elements in the latter, i.e. the movement of working tools mounted on moving parts. The reverse movement of working tools is carried out by the return cylinders, which causes the liquid to be expelled from the cavities of the power cylinders in the cavity 42. 3 sludge. % (P

Description

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The invention relates to forging and stamping production, in particular, to the construction of drives for working tools of a forging machine.

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

Figure 1 shows the drive of the working tools of the Forging Machine, a general view; FIG. 2 shows a device for supplying liquid under pressure to power cylinders; a general view of FIG. 3 is a section AA in FIG. 2.

The drive contains power cylinders 2 and 3 mounted in the machine bed 1 with movable elements 4 and 5 for installing working tools 6 and 7, as well as a device for supplying pressurized fluid to the power cylinders with the rod cavity 39 of the stop plungers 24.

The overload protection of the hydraulic system is used by the safety valve 40 and the battery 41. The hydraulic cavities 42 of the power cylinders 2 and 3 are connected by lines 9 and 10 to the cavities 43 of the auxiliary cylinders 11 and 12. The drive of the forging machine works as follows.

When the electric motor (not shown) is turned on, crank 15 rotates, which by means of connecting rod 16 transfers movement to sleeve 17. Screws 19 and 20 in sleeve 18 together with plungers 13 and 14 perform axial movement and fluid from cavities 43 is fed into

ry 2 and 3 in the form of housing 8 ,. installed-2o cavity 42 power cylinders 2 and 3,

 in the housing 8 and connected by lines 9 and 10 to the power cylinders 2 and 3 of the auxiliary cylinders 11 and 12 with the plungers 13 and 14, the crank gear with the crank 15, the connecting rod 16 and the communication center of the said gear with the plungers 13 and 14, made in the form mounted in the housing 8 coaxially to the plungers 13 and 14 of the sleeve 17 with double-sided internal cutting of the opposite direction, mounted in the housing 8 parallel to the axis of the sleeve 17 of the pins 18, as well as screws 19 and 20 with different cutting direction and flanges 21 with sockets for locating the pins 18, with the screw 19 and 20 with their cuttings are articulated with corresponding cuttings of the sleeve 17, which is connected with a pin 22 to the connecting rod 16. Working tools 6 and 7 are mounted on the plates 23. In power cylinders 2 and 3 there are also plunger-stops 24 joined by screw-cutting with nuts 25 , connected with 1 gearboxes 26, which are interconnected by a shaft 27. The nuts 25 are driven by an electric motor 28.

The movable elements 4 and 5 and the plungers-lugs 24 are installed in the guide sleeves 29 and 30 fixed in the power cylinders 2 and 3 by means of flanges 31.

Plate 23 is connected with the rod of the cylinder 32 and 33 reverse. The pump 34 delivers fluid through pipelines 35 and 36 into the cylinders 32 and 33 of the reverse and through the pipeline 37 through the valve 38 25

thirty

35

40

45

50

55

while moving the moving elements 4 and 5, there is a working stroke of tools 6 and 7. During the return stroke of tools 6 and 7, the working fluid is expelled from cavity 42 of power cylinders 2 and 3 in cavity 43, while reverse movement of tools 6 and 7 occurs at the expense of the forces of the cylinders 32 and 33 of the return stroke, and the fixed stop occurs when the moving elements 4 and 5 approach the stop plunger 24.

The machine is protected against overloading by the plunger-stops 24, which, moving from the forging axis (if tools 6 and 7 stop during the working stroke), displace fluid from cavity 39 of power cylinders 2 and 3 into the accumulator 4. The same effect used in the case of forging before clamping of the dies (for precision forging) ...

The punching space H (i.e., the forging size) is changed in the case when the cavities 3 of the power cylinders 2 and 3 are connected to the drain via the hydraulic distributor 38, and when the electric motor 28 is turned on through the gearboxes 26 and the shaft 27, the nuts 25 are rotated and the stop plungers 24 move either to the axis or from the forging axis, thus changing the initial position of the moving elements 4 and 5, i.e. coke size After adjusting the machine to the forging size, the pressure from the pump 34 is supplied to the cavity 39 of the power cylinders 2 and 3.

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while moving the moving elements 4 and 5, there is a working stroke of tools 6 and 7. During the return stroke of tools 6 and 7, the working fluid is expelled from cavity 42 of power cylinders 2 and 3 in cavity 43, while reverse movement of tools 6 and 7 occurs due to the efforts of the cylinders 32 and 33 of the return stroke, and a fixed stop occurs when the moving elements 4 and 5 approach the stop plunger 24.

The machine is protected against overloading by the plunger-stops 24, which, moving from the forging axis (if the tools 6 and 7 stopped during the working stroke), displace the liquid from the cavity 39 of the power cylinders 2 and 3 into the accumulator 41. The same the effect is used in the case of forging before closing of the dies (with precision forging) ...

The punching space H (i.e., the forging size) is changed when the cavities 39 of the power cylinders 2 and 3 are connected to the drain via the hydraulic distributor 38, and when the electric motor 28 is turned on through the gearboxes 26 and the shaft 27, the nuts 25 are rotated and the plungers-stops 24 are moved either to the axis or from the forging axis, changing the initial position of the moving elements 4 and 5, i.e. size forging. After adjusting the machine to the forging size, the pressure from the pump 34 is supplied to the cavity 39 of the power cylinders 2 and 3.

The technical and economic effect of the implementation of the invention is provided by an increase in reliability and performance as compared with the basic object.

Claims (1)

Claims of the invention A drive of the working tools of the forging machine, containing power cylinders with movable elements mounted in the frame for installing working tools, as well as a device for supplying pressurized fluid to the power cylinders in the form of a housing installed in the housing and connected with power lines auxiliary cylinders with plungers, a crank gear and a communication center 26 24 with plunslerami, characterized in that, in order to increase reliability and performance, the communication node of the crank-rod gear with plungers made as mounted in the housing coaxially to the plungers with the possibility of rotating the sleeve with double-sided internal cutting of the opposite direction, installed in the housing parallel to the axis of the sleeve of the pins, as well as screws with different cutting direction and flanges with sockets for placing the pins, their screws are articulated with components and bushings and installed with the possibility of interaction with the plungers, and the sleeve is connected With the corresponding link of the crank drive gear. FIG. one Fig.Z  A (covered)