SU1750959A1 - Auxiliary rotor of rotating machine - Google Patents

Abstract

Use: for rotary processing of products by stamping and pressing. SUMMARY OF THE INVENTION: The rotor comprises drums mounted on a shaft and a block holder with tool blocks. The drive of the upper sliders is made in the form of hydraulic cylinders with pistons. Cylinders, an additional piston with a rod and a pusher are coaxially mounted in the rod. The latter is placed in a hole made in the slider, and in contact with the ends with an additional stem and tool. The piston and rod cavities of a typical cylinder are connected, respectively, in pairs with the rod and piston cavities of the additional cylinder. When fluid is supplied to the piston cavity of the main cylinder, pressure is transmitted through the orifice into the rod cavity of the additional cylinder. When pressure is applied to the rod end of the main cylinder, it enters the piston cavity of the additional cylinder. An additional rod acts on the pusher, ensuring that the product is pushed out during the return stroke of the slide. 1 hp ff, 2 ill. with C

Description

The invention relates to mechanical engineering, in particular to the design of technological rotors of rotary machines for stamping and pressing operations.

A technological rotor with a hydromechanical drive is known, comprising a cylinder block mounted on a shaft, a drum with sliders placed axially in grooves mounted for movement along an axis and interacting with a fixed cam drive. Coaxially to the slider and to the tool at each working position the hydraulic actuator is installed in the cylinder bidet with the rod.

The disadvantage of this rotor is the impossibility of simultaneously pushing the product out of the die and the punch.

Closest to the present invention is a technological rotor of punching operations, which contains upper, middle and lower drums mounted on the shaft, drive sliders installed with the ability to interact with the tool block tool, while the slide drives are made in the form of working hydraulic cylinders located on the upper drum.

A disadvantage of the known rotor is the impossibility of pushing the treatment object out of the punch.

The purpose of the invention is the expansion of the technological capabilities of the working rotor.

This goal is achieved by the fact that a technological rotor of a rotor machine, containing drums mounted on a shaft with drive sliders and a block holder with tool blocks, a drive of sliders in the form of

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a cylinder of cylinders with a piston and a rod, provided with an ejection mechanism, made in the form of an additional cylinder coaxially located in the rod with a piston and rod, and a pusher; in the slider, a hole is made coaxially with the rod, a pusher is installed in said hole with the ability of one end to interact with the stem of the additional cylinder, and the other with the tool.

A comparison of the proposed technical solution with other technical solutions shows that the implementation of the technological rotor is hydromechanical with driving the sliders with the tool from the cylinder shafts is widely known, but its supply with an ejection mechanism made in the form of an additional cylinder with a piston and a rod and a pusher installed in the shaft the slider hole with the ability to interact with one end of its rod additional cylinder, and the other with the tool, gives the device a new e property: allows you to push the treatment item out simultaneously from the punch and die. In addition, it allows the pusher to perform movements with a stationary punch and use it as an additional tool (for sheet punching, to punch holes, for punching, to form the central part of the product), and to use it to hold the product when receiving it, for Press and center the part for sheet metal forming.

FIG. 1 shows the proposed rotor, a longitudinal section; in fig. 2 - tool block, longitudinal section.

The technological rotor of the rotary machine contains a plurality of tool sets, axially located in the housing, including the upper 1. middle 2 and lower 3 drums, block 4, and shaft 5. Drums 1-3 and block 4 are mounted coaxially on shaft 5, They are studs 6 and are a single rigid structure. In the upper drum 1, there are sdro cylinders 7 with pistons 8 and 9 and rods 10. In the middle drum 2, sliders 11 are axially mounted with rollers 12 and pushers 13 placed in the holes of the sliders.

Sliders 11 using rollers 12 interact with cylindrical Cams 14 installed in the glass 15 mounted on the fixed plate 16 of the machine frame, 8 lower drum 3 sliders 17 are installed with rollers 18, grippers 19, elastically connected with sliders 17 s

using springs 20. The sliders 17 receive movement from a cylindrical cam 21 mounted in a beaker 22 fixed to the frame plate 23. Instrumental

the blocks 24 are installed in the block holder 4 between the sliders and contain a matrix 25, a punch 26, ejectors 27 and 28, and a spring 29. The upper sliders 11 are connected to the punches 26, the lower sliders 17 are connected

0 with ejectors 28 matrices of instrumental blocks. The cylinders 7, the slide blocks 11 and 17 and the tool blocks 24 are placed in the rotor coaxially. The supply of working fluid in the cavities of the hydraulic cylinders is forced through channels 30, 31 and bore 32 in the rod 10 from the hydraulic actuator (not shown) through a flat distribution device 33. The rotor is mounted in the bearings 34 and 35 and is rotated through a gear wheel 36. The piston 8 and the rod 10 have a channel 37 connecting the piston cavity 38 with the rod cavity 39. The subject of processing is position 40.

The device works as follows.

The rotor is driven into rotation by a drive (not shown) through a gear wheel 36. During the rotation of the rotor, each processing tool 24 is conveyed sequentially and continuously into each tool unit 24 by a transport device (not shown). Simultaneously, the slider 11 together with the associated punch 26 moves downward, and the slider 17c pusher 28

5 moves up. The punch 26 is pushed in and the processing object 40 is clamped with a force equal to the spring 20 force. The sliders 11 and 17 move by moving the rollers 12 and 18 in the slots

0 fixed cylindrical cams 14 and 21 installed in glasses 15 and 22. The profile of the grooves of cams 14 and 21 is made in accordance with the cyclogram of the rotor.

5 If, due to the shape of the product or for reliable clamping, additional movements are required, the fluid from the hydraulic system under low pressure is fed through the channel 31 into the rod cavity 39 and

0 the hole 32 into the space above the piston 9. The piston 8 with the rod 10 occupies the upper position, the piston 9 emerges from the rod and additionally pushes the product into the matrix 25 with the help of the ejector 27.

5 A possible situation is when a low-pressure liquid is supplied simultaneously through channels 30 and 31 to the piston 38 and rod 39 cavities of the cylinder, then due to the area difference the piston 8 with the rod 10 goes down, the piston 9 comes out of

rod, there is an additional course of the punch 26 and ejector 27, providing pushing the subject of processing in the matrix 25 and its clip.

After the treatment object in the die and the punch is clamped securely, the transport device releases the product 40 and leaves the rotor, the hydraulic cylinder 7 performs a working movement with technological effort. Fluid from the hydraulic system with the help of a flat distribution device 33 through channel 30 is supplied to the piston cavity 38 of the cylinder, the piston 8, the rod 10 and the piston 9 move together downwards. Through the slider 11, the working movement and force developed by the hydraulic cylinder is transferred to the punch 26 and stamping of the product 40 occurs.

The channel 37 in the piston 8 and the rod 10 is performed if necessary, i.e. it may not be. When this channel is not present, the piston cavity 38 of the main cylinder is not connected to the rod cavity 39 of the auxiliary cylinder. The piston 9, having encountered the pusher 13 in its path, rises through the opening 32 and the channel 31 connected to the drain, raises the pusher, displaces the working fluid above the piston 9 and occupies the upper position relative to the rod 10, their lower ends are in the same plane. In the presence of channel 37, the piston 9 rises with fluid entering the cavity 39. Upon completion of the stamping, channel 30 is connected to the drain, the working fluid through channel 31 and the hole 32 is fed into the rod cavity 39 and into the space above the piston 9. up, and the piston 9 - down, relative to the rod 10. i.e. the end of the piston 9 is below the end of the rod 10.

Further, by means of the cam 14, the slider 11 together with the punch 26 is moved by the cam 14 upward, the slider 17 together with the ejector 28 is lifted up by the cam 21. After compressing the spring 20, the ejector 28 starts to push the product out of the matrix 25. During the slide 11, the pusher 13 abuts the end of the piston 9, stops and prevents the movement of the ejector 27, the latter stops and abuts the product 40. The slider 11 together with the punch 26 continues movement, the punch is separated from the processing object 40 held by the ejector 27 and 28. A transport device is inserted,

which captures the product. The rod cavity 39 by the channel 31 is connected with a drain by means of the distributor 33, the spring 29 moves the ejector 27, the pusher 13 and the piston 9 upwards. The slider 17 with the help of the cam 21 pulls down the ejector 28. The ejectors release the product 40 and the transport device removes it from the rotor.

The proposed device, in comparison with the prototype, expands the technological capabilities of the working rotor:

-provides the possibility of stamping the product in dies with a plane of the connector, which makes the forming surfaces uniformly but between the punch and the die;

- allows simultaneously pushing the object of treatment from the punch into the die;

- expands the capabilities of the rotor when receiving, transferring the product to the transport device;

-improves the reliability of the subject of processing;

- allows the ejector to make movements with a fixed punch, which allows it to be used as an additional tool for punching holes in sheet metal forming to form the central part of the product during body forming.

Claims (2)

1. Technological rotor of a rotor machine, containing drums mounted on a shaft with drive sliders and a blocker with tool blocks, drive of sliders in the form of hydraulic cylinders with a piston and a rod arranged in a drum, characterized in that in order to expand technological capabilities, it is equipped with a mechanism ejection, made in a video axle located in the rod of an additional cylinder with a piston and a rod and a pusher, a hole is made in the slider coaxially with the rod, the pusher is installed in said hole with zmozhnostyu reacting with one end to the rod of the auxiliary cylinder, and the other - with the tool. 2. A rotor according to claim 1, characterized in that the piston and rod cavities of the main cylinder are respectively connected in pairs with the piston and piston cavities of the additional cylinder. SЈ 6S609U / 3 AT