RU2547058C1 - Device for fabrication of items out of metal plates - Google Patents

Abstract

FIELD: metallurgy.

SUBSTANCE: device contains frame, two flanges with windows and cylindrical holes to install driven and non-driven horizontal shafts with rollers, cushions, roll bearings and non-driven vertical assemblies of rollers and device for rollers changing. In the frame from the drive side of the horizontal shafts a longitudinal groove is made to secure one flange, the second flange is secured in the longitudinal grooves of the provided at least two carrying beams having possibility of movement at right angle to the longitudinal grooves using the device for rollers changing in the sliding guides made in the frame. The roll bearings of the horizontal shafts located in the second flange are installed on the spacing bushings with internal cone holes interacting with the made cone ends of the horizontal shafts and are secured by means of wedges. The device for rollers changing is made in form of the driven shaft located on the frame with bearing supports and rack-and-pinion gears, which gear wheels are installed on the driven shaft, and racks are installed in the bearing beams.

EFFECT: rigidity increasing of the device and quality improvement of items.

2 cl, 6 dwg

Description

The invention relates to the field of metal forming, and more specifically to equipment for the production of cylindrical and profile welded straight-line pipes, open and closed bent profiles.

A device for the manufacture of sheet metal products is described in French patent No. 2263045, class. B21C 37/08 claimed 08/19/1974, publ. 10/03/1975

This device contains a frame, a bed made of 2 housings and cheeks with windows fixed to them, one of the housings is mounted with the ability to move perpendicular to the horizontal axis, horizontally mounted upper work roll, fixed with its necks in the pillows, and lower work roll, fixed with their necks in the cheek bores, pressure mechanisms for radial movement of the upper work roll and means for transshipment of the rolls, made in the form of a support that can be raised and rotated around the axis by 180 ° and odderzhivaet cantilever mounted two opposing pairs of shafts with the working rolls.

A disadvantage of the known design of the device for the production of sheet metal products is that it has insufficient rigidity due to the fact that the frame is made of an open type with a cover, and this reduces the rigidity of the stand, and therefore the quality of the products. In addition, the tool for transshipment of rolls is very cumbersome, significantly increases the weight of the equipment, and its location on the service side makes it difficult to maintain the equipment.

The cantilever arrangement of the rolls imposes restrictions on the use of such a design for working with a strip of large width, for example, for roll forming devices or devices for cutting a roll of tape.

Of the known devices for the manufacture of products of their sheet metal, the closest in technical essence is the device described in the patent of the Russian Federation No. 2188730, class. B21D 5/06, B21C 37/08, claimed 11/05/97, publ. 09/10/2002

It contains a frame, a bed made of two buildings, one of which has the ability to move perpendicular to the horizontal axis of the device, and mounted on the bodies of the cheeks. Windows and holes are made in the cheeks for placement of horizontal and idle vertical roll units. The upper horizontal rolls are equipped with push mechanisms. In addition, the device has a means for transshipment of horizontal nodes of the rolls in the Assembly.

The main disadvantage of the device is the increased metal consumption and the complexity of manufacturing, since it must have a removable set of horizontal and vertical nodes of the rolls and, in addition, each pair of horizontal rolls is equipped with a device for transshipment.

A bed of two removable cases dramatically reduces the rigidity of the device, which will adversely affect the reliability of the equipment and the quality of manufactured products.

The disadvantage of this device is also the large cycle time of transshipment of each pair of horizontal rolls due to the large number of manual assembly and dismantling locksmith operations.

The objective of the present invention is to provide a device for the production of sheet metal products, which allows to reduce the time of transshipment, metal consumption, labor intensity, manufacturing cost and improve the quality of manufactured products.

This object is achieved by the fact that in the device for the production of sheet metal containing a frame, two cheeks with windows and cylindrical openings for accommodating drive and non-drive horizontal shafts with rolls, pillows, rolling bearings and non-drive vertical nodes of the rolls and means for transshipment of rolls, according to the invention, a longitudinal groove is made in the frame on the drive side of the horizontal shafts for fastening one cheek, and the second cheek is fixed in the longitudinal grooves provided for at least bearing beams having the ability to move perpendicularly to the longitudinal grooves using means for transshipment of the rolls in the slide rails made in the frame, while the rolling bearings of the horizontal shafts located in the second cheek are mounted on distance bushings with internal conical holes that interact with the conical horizontal ends shafts, and secured by wedges. In addition, the means for transshipment of rolls is made in the form of a drive shaft placed on the frame with bearing bearings and rack and pinion gears, the gears of which are mounted on the drive shaft, and the racks are fixed in the bearing beams.

Due to the provided possibility of extending the second cheek with the elements of the extension device placed on it by means of a stationary means for transferring the rolls to a service-friendly position for replacing the horizontal and vertical rolls, the time for transferring the rolls, the metal consumption, the complexity and the manufacturing cost are reduced.

In the previously known device, each pair of horizontal shafts with rolls (we have seven, see figure 2) is equipped with transshipment means and transshipment is carried out by nodes of vertical and horizontal rolls. It should be noted that when manufacturing on the device, for example, welded pipes with a diameter of up to 40 mm due to the greatest compactness of the cheeks with elements of small stroke and manual accessibility for maintenance, the second cheek extended for transshipment remains in place.

With a larger diameter of the pipes being welded, the second cheek with elements of an electric bridge crane is removed and laid in front of the device for subsequent dismantling and installation of the rolls.

The implementation of the means for transshipment of rolls, the rigid fastening of the first cheek with the elements and the rigid fixation of the second cheek with the elements in the transverse grooves of the frame by seven pairs of horizontal shafts with wedge joints provide sufficient rigidity of the entire device and, as a result, obtain high quality products.

To explain the invention, a specific embodiment of the invention is provided below with reference to the accompanying drawings, in which:

figure 1 - shows a front view (from the service side) on the device for the production of sheet metal products;

figure 2 is a view of figure 1;

figure 3 is a section bB in figure 2;

figure 4 is a section bb in figure 1;

figure 5 - place G in figure 1;

figure 6 is a section DD in figure 5.

A device for the production of sheet metal products contains a frame 1, cheeks 2, 3 with windows 4, 5 and cylindrical holes 6. In the windows 4 there are upper horizontal shafts 7 with pillows 8, rolling bearings 9 and horizontal upper rollers 10. In the windows 5 are placed nodes 11 with vertical rolls 12. In the cylindrical holes 6 in the pillows 13 on the rolling bearings 14, the lower horizontal shafts 15 and the lower horizontal rolls 16 are mounted. Moreover, in relation to the pipe-welding molding mill, in the direction of the technological essa (in figures 1, 2 is shown by an arrow) all lower horizontal rolls 16 are driven from drives 17, including cardan shafts 18, gear stands 19, 20, 21, gearboxes 22, 23, 24, electric motors 25, 26, 27 and frames 28, 29, 30. The first four upper horizontal rolls 10 are non-driven, and the remaining upper horizontal rolls are driven. All vertical rolls 12 are non-driven. All upper horizontal rolls 10 with cushions 8 are equipped with spring-loaded safety devices 31 and the possibility of vertical movement in the windows 4 by means of pressure screws 32, 33, nuts 34, 35 and helms 36, 37. Cheek 2 is rigidly fixed in the longitudinal groove 38 of frame 1. Cheek 3 is fixed rigidly with the help of conical pins 39, washers 40 and wedges 41 in the longitudinal grooves 42 of at least two load-bearing beams 43, which are able to move thanks to the means for transshipment 44 of the rolls in the located sliding guides 45 and removable strips 46 of the frame 1. FROM The tool for transshipment 44 of the rolls comprises a shaft 47 with bearing bearings 48 and rotation drives 49, which are mounted on the frame 1. On the shaft 47, gears 50 are mounted, interacting with the racks 51, which are rigidly fixed in the bearing beams 43. Rolling bearings 9 of the upper horizontal shafts 7 , rolling bearings 14 of the lower horizontal shafts 15 located in the jaw 3 are mounted on spacer sleeves 52 with tapered bores 53 interacting with the tapered ends of the horizontal shafts 7, 15 and secured by wedges 54.

On the front of the device on the frame 1 there are vertical guide rollers 55, 56 for sheet metal.

The drive for transshipment means, in addition to the gearbox, can be equipped with an electric motor or two gearboxes located at the ends with helms for moving the rods manually.

A device for the production of sheet metal works as follows.

Before the transshipment of horizontal 10, 16 and vertical 12 rolls, wedges 54 of all seven pairs of non-driven and driven horizontal shafts 7, 15 are driven out.

Further, from the electric motor (not shown) or using the steering wheels 36, 37, manually rotating the shafts 47 with gears 50 on both sides, the rails 51 are moved perpendicular to the axis of the device along with the supporting beams 43 fixed on them, the cheeks 3 with the vertical roll assemblies 11 mounted on it 12 and pillows 8 assembly with rolling bearings 9 and spacer sleeves 52.

Moreover, due to the implementation of conical holes 53 in the bushings 52, and on the shafts 7, 15 of the conical ends, the cheek 3 with the elements housed therein freely moves along the sliding guides 45 of the frame 1 to the transshipment position (shown thinly in FIG. 3).

After that, at the units for the production of smaller products, the technological tool of the horizontal 10, 16 and 12 vertical rolls is changed to others for the production of the required size of the product.

On units for the production of larger products, the cheek 3 is assembled after dismantling the conical pins 39, washers 40 and wedges 41 with an electric bridge crane (not shown) and is removed and placed in a convenient position for transshipment of rolls next to the device.

With the interchangeable tool kit (rolls) installed, the cheek 3 means for transhipments 44 is returned to its working position and is rigidly attached to the stationary cheek 2 assembly using wedges 54.

The proposed design of the device for the production of sheet metal products in comparison with the known allows to reduce the time of transshipment, metal consumption, labor intensity, manufacturing cost and improve the quality of manufactured products.

Claims (2)

1. A device for the production of sheet metal containing a frame, two cheeks with windows and cylindrical openings for accommodating drive and non-drive horizontal shafts with rolls, pillows, rolling bearings and nodes of non-drive vertical rolls and means for transshipment of rolls, characterized in that the frame on the drive side of the horizontal shafts has a longitudinal groove for fastening one cheek, and the second cheek is fixed in the longitudinal grooves of at least two supporting beams installed with possible the ability to move perpendicular to the longitudinal grooves using means for transshipment of the rolls in the slide rails made in the frame, while the rolling bearings of the horizontal shafts located in the second cheek are mounted on spacer sleeves with internal conical holes that interact with the ends of the horizontal shafts made conical and secured by wedges. 2. The device according to claim 1, characterized in that the means for transshipment of the rolls is made in the form of a drive shaft mounted on a frame with bearing bearings and rack and pinion gears, the gears of which are mounted on the drive shaft, and the racks are fixed in the carrier beams.

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