RU89433U1 - DEVICE FOR MANUFACTURING PIPES WITH SCREW CORNERS - Google Patents

Abstract

The utility model relates to pipe machining, in particular in artistic forging, and can be used to obtain products from electric-welded or seamless thin-walled steel pipes in the range of diameters, pipes of complex profile, in particular corrugated pipes used as supporting and decorative products. The objective of the claimed utility model is to eliminate this drawback, in particular, expanding technological capabilities by deforming the corrugations on the pipe with a helix angle of 30 ° to 90 °. A device for manufacturing pipes with screw corrugations comprises a mandrel 2 mounted on the frame 1 for installing the pipe 3 at the inlet, screw supports 4 for the frame 1, a support plate 5 with three grooves 6 located at an angle of 120 °, in which three sliders 7 with bodies move 8, the movement adjustment mechanism 9 (FIGS. 1, 4). In the housing 8 of each slider 7, on the bearings 10, a shaft 11 is installed with a forming body - a working roller 12 and a gear motor 13 with a cam clutch 14. The axis of rotation of the working roller 12 is set relative to the longitudinal axis of the pipe 3 at a certain angle (the angle of the helix) ( figure 2). The movement adjustment mechanism 9 is made in the form of a screw-nut, where the screw 15 is fixed to the base plate 5 by a lining 16 with fasteners 17 to rotate relative to the base plate 5 inside the groove 6, the insert 18 of the slide 7 located inside the groove 6 between the slide 7 and serves as a nut the slider plate 19, in turn, placed on different outer sides of the base plate 5. The screw 15 rotates relative to the base plate 5 without linear movement. Rotating relative to the screw 15, the insert 18 of the slider 7 moves linearly in the groove 6, along with which the slider 7 itself moves, adjusting the radial arrangement of the rollers 12 relative to the axis of the pipe 3 (Figs. 1, 4). The movement of the sliders 7 is controlled by rulers (not shown in the figure) installed on the back of the plate. The mandrel 2 for installing the pipe 3 at the inlet is made in the form of a rest 20 with a set of replaceable sleeves 21, for different diameters of the pipe 3 (Fig. 1). The housing 8 of each slider 7 is fixedly connected to its rotary plate 22 mounted on its bracket 23 of the slider 7 parallel to its plane, on the axis 24 with the possibility of rotation around the axis 24 relative to the bracket 23 of the slider 7. In the embodiment, each bracket 23 is made with a number of holes 25 , 26, 27, 28 each of which corresponds to its own helix angle of 35 ° or 45 ° or 55 ° or 90 °, a counter hole 29 is made in each rotary plate 22 for fixing the position of the rotary plate 22 in relation to the bracket 23 in pairs at a selected angle of elevation of the helix, the axis 24 is made with a nut 31 located on the axis 24 under the bracket 23 for additional fixation of the position of the rotary plate 22 relative to the bracket 23 of the slider 7 at the selected angle of elevation of the helix. The latch 30 is made in the example of execution in the form of a threaded rod with two nuts (in Fig. Not marked with positions), which are tightened relative to the rod. The angle of elevation of the helix is the same for all three pairs: the rotary plate 22 - bracket 23 (Fig.1, 2, 3, 4, 5, 6, 7). The device for the manufacture of pipes with screw corrugations, in comparison with the prototype, expands the technological capabilities of the device by deforming the corrugations on the pipe with a different angle of elevation of the helix, due to the fact that in the device each housing with a roller is fixedly connected to a rotary plate mounted on the corresponding bracket of the slider parallel to its plane, on the axis with the possibility of rotation relative to the bracket of the slider, while the bracket is made with a number of holes, each of which corresponds to its angle of elevation the helix is from 30 ° to 90 °, a counter hole is made in the rotary plate for fixing the position of the rotary plate with the fixator relative to the bracket at a selected angle of elevation of the helical line, the axis is made with a nut located on the axis under the bracket to additionally fix the position of the rotary plate relative to the slider bracket . 1 p. F / l, 7 ill.

Description

The utility model relates to pipe machining, in particular in art forging, and can be used to obtain products from electric-welded or seamless thin-walled steel pipes in the range of diameters, pipes of complex profile, in particular corrugated pipes used as supporting and decorative products.

The well-known "Method of manufacturing pipes with screw corrugation" described in the patent for the invention of the USSR No. 176554, B21D 15/04, op. 11.17.65 g.

The device described in the known method contains rotating (drive) forming rings located at an angle and eccentric relative to the axis of the workpiece.

The proposed device involves the continuous receipt of corrugations on the pipe of unlimited length, but installing the pipe in its original position relative to the first ring in the path of the pipe requires sufficient accuracy, and additional directing force, in addition, it is possible to corrugate the pipe of only one diameter.

Thus, the disadvantage of this device is the limited technological capabilities and low productivity.

It is known "Device for corrugating a cylindrical shell" described in the USSR copyright certificate No. 638402, B21D 15/04, op. 12/25/78

The known device contains corrugating rollers mounted in a separator with the possibility of forced rotation around a cylindrical shell, a planetary gear, a drive with two kinematically connected V-belt drives.

The proposed device involves working with a linearly moving cylindrical shell, the length of which is no more than the magnitude of the working stroke (the formation of corrugations on the pipe), in addition, the installation of the next pipe to its original position is possible only after the working body (the working pipe moving assembly) is returned to its original position.

Thus, the disadvantage of this device is the limited technological capabilities and low productivity.

It is known "Device for the manufacture of pipes with multi-screw helical corrugations" "described in the patent for the invention of Russia No. 2050213, B21D 15/04, op. 12/20/95

The known device comprises a mandrel with a variable cross section in the form of a cylindrical support part and a working part with protrusions and depressions in the form of two sets of profiled rotating rollers, forming elements in the form of two sets of disks, a drive for feeding a pipe.

The proposed device involves working with a pipe whose length is no more than the stroke (the formation of corrugations on the pipe), in addition, the installation of the next pipe to its original position is possible only after the working body (node working movement of the pipe) is returned to its original position.

Thus, the disadvantage of this device is the limited technological capabilities and low productivity.

Known "Device for the manufacture of pipes with helical corrugations" described in the patent for the invention of Russia No. 2168384, B21D 15/04, op. 06/10/2001

The known device comprises forming rollers installed in the housing and placed around the axis of the device and at an angle to it with the possibility of rotation around its axes and a tube working displacement unit, a loading unit in the form of a drive and a tray, an unloading unit in the form of a slider with a drive for moving it and with the device capture with a drive of its closing-opening. The forming rollers are made with drive mechanisms for radial movement and movement of the rollers relative to the axis of the device.

The proposed device is very difficult constructively, therefore, expensive, in addition, the proposed device involves working with a pipe whose length is no more than the stroke (the formation of corrugations on a long pipe in its entirety along its entire length is possible only with an additional stroke), and, the installation of each pipe in the initial position is carried out with mandrels placed inside the pipe, which also complicates the production.

Thus, the disadvantage of this device is the high cost, limited technological capabilities and low productivity.

The well-known "Machine for the formation of corrugations on pipe blanks" described in the USSR author's certificate No. 413716, B21D 15/04, op. 04/05/78

The known machine tool contains two heads rotating around the axis of the workpiece, moving the workpiece along the axis, placed relative to the workpiece, one outside and the other inside (additionally being a mandrel for the workpiece), forming bodies, some of which are installed in the head located in the cavity of the workpiece, and the other part installed in the head located on the outside of the workpiece on the brackets with protrusions, a mechanism for adjusting the forming bodies (for the required diameter and angle of rotation of the tool axes relative to the axis of the workpiece . (Pitch angle helical line) to the outer side of the workpiece, as the rotary nuts mating with the bracket lug having threads and a pin actuators forming bodies made by electric motors: inner - via the gear and the gear outer - via satellite and cogwheel

The proposed device is very difficult constructively, therefore, expensive, in addition, the proposed device involves working with a pipe whose length is no more than the stroke (the formation of corrugations on the pipe), and the installation of the next pipe in its original position is possible only after the return of one of the working bodies (heads with forming bodies located inside the workpiece) to their original position.

Thus, the disadvantage of this device is the high cost, limited technological capabilities and low productivity.

The closest analogue, selected as a prototype, is the "Device for the manufacture of pipes with screw corrugations", described in the utility model of Russia No. 45948 op. 06/10/2005

A known device for the manufacture of pipes with helical corrugations, contains a bed, two mandrels installed at the inlet and outlet of the pipe, made in the form of lunettes with replaceable sleeves, for different external pipe diameters, three drive forming bodies with rollers uniformly placed outside the circumference of the pipe, axes which, in turn, are placed at an estimated angle to the axis of the pipe, the mechanisms for adjusting the forming bodies to the required pipe diameter, each roller of the driving forming bodies is installed in a housing mounted on a slider, crawling the uns are placed in the grooves of a fixed vertical plate fixed on the bed between the mandrels, the mechanism for adjusting each forming body to the required pipe diameter is made in the form of a screw with a nut, the screw is mounted for rotation relative to the plate inside the groove, the nut rotating along the screw is rotated in in the form of a slider insert placed inside the groove between the slider and the slider plate, which in turn are placed on different exterior sides of the slab and rigidly connected to the slider insert.

The disadvantage of this device is the limited technological capabilities, consisting in the fact that on this device it is possible to deform the corrugations on the pipe with only one angle of elevation of the helix.

The objective of the claimed utility model is to eliminate this drawback, in particular, expanding technological capabilities by deforming the corrugations on the pipe with a helix angle of 30 ° to 90 ° (for example, in the embodiment 35 °, 45 °, 55 °, 90 °).

The technical result is that, using the proposed device, you can get a pipe of any length with screw corrugations located with an angle of elevation of the helix from 30 ° to 90 °.

This object is achieved by the fact that in the device for the manufacture of pipes with screw corrugations containing a bed, a mandrel installed at the inlet of the pipe, made in the form of lunettes with replaceable sleeves, for different outer diameter of the pipe, three drive forming bodies uniformly placed outside the circumference of the pipe with rollers, the axes of which, in turn, are placed at a design angle to the axis of the pipe, the mechanisms for adjusting the forming bodies to the required pipe diameter with sliders, each roller of the driving forming bodies is placed in the housing e mounted on the corresponding bracket of the slider, the sliders are placed in the grooves of the fixed vertical plate fixed on the bed between the mandrels, according to the utility model, each housing with a roller is fixedly connected to the rotary plate mounted on the corresponding bracket of the slider parallel to its plane, on the axis with the possibility of rotation relative to the bracket of the slider, while the bracket is made with a number of holes, each of which corresponds to its angle of elevation of the helix from 30 to 90 °, in the rotary plate is made but the counter-hole for fixing the position of the rotary plate relative to the bracket with a fixed angle of elevation of the helix, the axis is made with a nut located on the axis under the bracket for additional fixing the position of the rotary plate relative to the bracket of the slider.

Due to the fact that in the device each housing with a roller is fixedly connected with a rotary plate mounted on the corresponding bracket of the slider parallel to its plane, on the axis with the possibility of rotation relative to the bracket of the slider, the bracket is made with a number of holes, each of which corresponds to its own angle of elevation a helical line from 30 ° to 90 °, a counter hole is made in the rotary plate for fixing the position of the rotary plate relative to the bracket with a fixer at a selected angle of elevation of the helical line, axis ene with a nut, placed on the axis at a bracket for additional fixation of the turning plate position relative to the slide bracket, extend technological capabilities of the device by deforming the corrugations on the tube with a different helix angle.

Thus, the combination of the claimed features allows you to significantly expand the technological capabilities of the proposed devices, you can get a pipe of any length with screw corrugations with any angle of elevation of the helix from 30 ° to 90 ° in one pass through the rollers of the molding bodies.

The inventive device for the manufacture of pipes with screw corrugations has a novelty, differing from the prototype of the above characteristics, and ensures the achievement of the technical result perceived by the applicant.

The inventive device for the manufacture of pipes with screw corrugations can be widely used in the field of art forging, therefore, meets the criterion of "industrial applicability".

The essence of the proposed device for the manufacture of pipes with screw corrugations is illustrated by drawings, which show:

figure 1 is a General view of the proposed device for the manufacture of pipes with screw corrugations with a slit AA;

figure 2 is the same, a top view with a section BB;

figure 3 is the same, left view;

figure 4 is the same, left view with a section bb;

figure 5 is the same, a top view of the rotary plate pos.22;

figure 6 is the same, a top view of the bracket pos.23;

Fig.7 is the same, part of a top view in section GG.

A device for manufacturing pipes with screw corrugations contains a mandrel 2 mounted on the frame 1 for installing the pipe 3 at the inlet, screw supports 4 for the frame 1, a support plate 5 with three grooves 6, located at an angle of 120 °, in which three sliders 7 with bodies move 8, the movement adjustment mechanism 9 (FIGS. 1, 4).

In the housing 8 of each slider 7, on the bearings 10, a shaft 11 is installed with a forming body - a working roller 12 and a gear motor 13 with a cam clutch 14. The axis of rotation of the working roller 12 is set relative to the longitudinal axis of the pipe 3 at a certain angle (the angle of the helix) ( figure 2).

The movement adjustment mechanism 9 is made in the form of a screw-nut, where the screw 15 is fixed to the base plate 5 by a lining 16 with fasteners 17 to rotate relative to the base plate 5 inside the groove 6, the insert 18 of the slide 7 located inside the groove 6 between the slide 7 and serves as a nut the slider plate 19, in turn, placed on different outer sides of the base plate 5. The screw 15 rotates relative to the base plate 5 without linear movement. Rotating relative to the screw 15, the insert 18 of the slider 7 moves linearly in the groove 6, along with which the slider 7 itself moves, adjusting the radial arrangement of the rollers 12 relative to the axis of the pipe 3 (Figs. 1, 4).

The movement of the sliders 7 is controlled by rulers (not shown in the figure) installed on the back of the plate.

The mandrel 2 for installing the pipe 3 at the inlet is made in the form of a rest 20 with a set of replaceable sleeves 21, for different diameters of the pipe 3 (Fig. 1).

The housing 8 of each slider 7 is fixedly connected with its rotary plate 22 mounted on its bracket 23 of the slider 7 parallel to its plane, on the axis 24 with the possibility of rotation around the axis 24 relative to the bracket 23 of the slider 7.

In the example of execution, each bracket 23 is made with a series of holes 25, 26, 27, 28, each of which corresponds to its helix angle of 35 ° or 45 ° or 55 ° or 90 °, in each pivot plate 22 a counter hole 29 is made for fixing by a latch 30 pairwise position of the rotary plate 22 relative to the bracket 23 at a selected angle of elevation of the helix, the axis 24 is made with a nut 31 placed on the axis 24 under the bracket 23 for additional fixation of the position of the rotary plate 22 relative to the bracket 23 of the slider 7 at a selected angle of elevation a helix. The latch 30 is made in the example of execution in the form of a threaded rod with two nuts (in Fig. Not marked with positions), which are tightened relative to the rod. The angle of elevation of the helix is the same for all three pairs: the rotary plate 22 - bracket 23 (Fig.1, 2, 3, 4, 5, 6, 7).

A device for the manufacture of pipes with screw corrugations works as follows.

Using the rotary plates 22 choose the angle of elevation of the helix 35 ° or 45 ° or 55 ° or 90 ° (the calculated angle of the axes of the shafts 11 (axes of rotation of the rollers 12). The selected angles are fixed with latches 30 and nuts 31 on the axes 24.

Using the screw 15 of the movement adjusting mechanism 9, the forming bodies are adjusted — the working rollers 12 installed in the casings 8 of the slider 7 to the required pipe diameter 3.

The pipe 3 (workpiece) through the receiving rest 20 with one of the replaceable bushings 21 for the required diameter of the pipe 3 is manually inserted between the three working rollers 12. Rotating from the gear motor 13, the working rollers 12 deform the pipe 3 to screw corrugations and give it a rotational-translational motion pushing her to the exit.

The length of the pipe 3 is not limited, it can be limited only by the size of the room in which the device is installed.

Without turning off the device, without reinstalling it and its individual mechanisms, it is possible to deform pipes 3 to screw corrugations of a predetermined length by feeding a workpiece to the device — into the receiving lance 20 one after another and to receive pipes with screw corrugations at the output of the output lunette.

The device for the manufacture of pipes with screw corrugations, in comparison with the prototype, expands the technological capabilities of the device by deforming the corrugations on the pipe with a different angle of elevation of the helix, due to the fact that in the device each housing with a roller is fixedly connected to a rotary plate mounted on the corresponding bracket of the slider parallel to its plane, on the axis with the possibility of rotation relative to the bracket of the slider, while the bracket is made with a number of holes, each of which corresponds to its angle of elevation the helix is from 30 ° to 90 °, a counter hole is made in the rotary plate for fixing the position of the rotary plate with the fixator relative to the bracket at a selected angle of elevation of the helical line, the axis is made with a nut located on the axis under the bracket to additionally fix the position of the rotary plate relative to the slider bracket .

Claims (1)

A device for manufacturing pipes with helical corrugations, comprising a bed, a mandrel installed at the inlet of the pipe, made in the form of lunettes with interchangeable bushings for different external pipe diameters, three drive forming bodies with rollers uniformly placed outside the circumference of the pipe, the axes of which, in turn, are placed at a calculated angle to the axis of the pipe, the mechanisms for adjusting the forming bodies to the required pipe diameter with sliders, each roller of the driving forming bodies is placed in a housing mounted on the corresponding crown matte slide, sliders are placed in the grooves of a fixed vertical plate mounted on the frame between the mandrels, characterized in that each housing with a roller is fixedly connected to the rotary plate mounted on the corresponding bracket of the slide parallel to its plane, on the axis with the possibility of rotation relative to the bracket of the slide, This bracket is made with a number of holes, each of which corresponds to its own helix angle from 30 to 90 °, in the rotary plate there is a counter hole for fixing the lock position swivel plate relative to the bracket at a selected helix angle lifting axis is provided with a nut, placed on the axis at a bracket, to further secure the position of the rotary plate with respect to the slide bracket.