SU1428486A1 - Arrangement for bending tubes - Google Patents

Abstract

The invention relates to the processing of metals by pressure, in particular to devices for the bending of pipes, and can be used in various fields of technology both in the conditions of the workshop and in the conditions of the installation floor. The goal is to expand technological capabilities by providing flexible pipes in different planes. The device contains a bending template (G11I 20 with a thrust plate 25 for fixing it in) a bar zone and a bending roller (GR) 9. mounted on a swing holder. 7 associated with the drive. The tube 32 is driven into a caliber formed by brooks of the GSH 20 and GR 9. The holder 7 of the GR 9 turns around the GSH 20 and bends the pipe 32. To remove the bent pipe, the GSH 20 is moved away from the GR 9 due to the figured hole 26 after clearing the stop bar 25 and removed from the work area. 1 hp f-ly, 9 ill.

Description

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J2

4 N3

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NU

CX) O5

srig.1

The invention relates to the processing of metals by pressure, in particular to devices for the bending of pipes, and can be used in various fields of technology both in the conditions of a workshop and in conditions of an assembly site.

The purpose of the invention is to expand the technological and logical capabilities by providing flexible pipes in different planes.

Ma FIG. Figure 1 shows a pipe bender at the beginning of a pipe bend with a bending roller drive from a rotary lever, a general view; in fig. 2 - the same, with the drive of the bending roller - C of the screw; in fig. 3 is a section A-A in FIG. one; in fig. 4 is a view B in FIG. one; in fig. 5 is a section B - B in FIG. one; in fig. 6 is a cross-section of the FIG. 3; in fig. 7 is a section of D-D in FIG. 2; in fig. 8 - drive handle for the screw; in fig. 9 - bending template in the position of the connector. On the base 1, a frame 3 with a support plate 4 is attached in the form of a frame with pipes 2, the axis 5 is attached to the rack, and the shaft 7 is mounted pivotally with the possibility of rotation on the sleeve 6.

On the holder 7, a cantilever axis 8 for a two-bar bending roller 9 is mounted on one of its copps, and the other end of the holder serves to fasten the drive, for example, in the form of a removable rod 10 or screw 11 with a running nut 12, depending on the diameter of the pipes subject to bending.

The rod 10 is fastened with a detachable plug 13 with a deaf hole for the installation of the rod, and the screw 11 with a finger 14, which is installed in the plug 15, which in turn is fixedly attached to the nut 12 (phage 2 and 7).

One end of the screw 11 is hinged with a fork 16 with a finger 17 attached to the support plate 4 with the possibility of swing. In the plane of the swing the holder 8, and to the other end of it also hinged, with the help of the hook 18, the handle handle 19 is attached.

The tube bender also contains a bending template 20 in the form of a sector with a quarter circle angle and a stop plate 21 for fixing the template 20 in the working area with a finger-shaped handle 22 freely mounted on the axis 5. At the end of the template 20, a groove 23 is provided with a supporting surface 24 for the stop bar 21. The landing position on the axis 5 under the template 20 is made in the form of a neck 25 with flat parallel portions spaced one from another at a distance S, and with a length equal to the width h of the template 20. Hole 26 of the template 20 performed with section 27, corresponding to axle 5, neck 25 and with con cylindrical section 28 with it with a diameter corresponding to the axis diameter 5. Center of cylindrical section 0

five

28 is offset from the axial line of axis 5 to the distance H, slightly larger than the diameter of axis 5.

Pattern 20 is made with two creek .mi

29 and 30 with different radii. Bends for pipes

5 31 and 32 of different diameter or for pipe bending

same diameter but with different radius

perished.

In the axial plane of the streams 29 and 30 of the template are also the axial planes of the streams 33 and 34 of the bending roller 9, and the alignment of their planes is provided when the bending roller 9 is mounted on the axis 8 due to the thickness of the textolite washer 35 (Fig. 3).

The bending roller 9 is fixed on the axis by a nut 36, and the template 20 is fixed on the axis 5 by a nut 37 with a washer 38, and to eliminate the backlash between the washer 38 and the bar 21 a adjusting washer 39 is installed.

The pipe bender also contains a two-strand stop 40, fixedly mounted on the support plate 4.

If a screw drive is used in the tube bender and when installing the pipe bead on the floor of the room, in order to improve the working conditions and ensure a favorable working posture, the screw is attached to the extension Z-shaped handle 41 with a plug 42 for connecting to the knotter 18 . The folded spindle 43 and two bushings:; and 44 and 45 are mounted for easy rotation on the rod, and P1 hinge 18 and fork 42 are interconnected with tifts (not shown).

In the case of the benchtop version of the pipe bender, it is secured to the standing table 5 in the position tilted 90 ° so that the plane of the rack 3 rests on the plane of the table top (Fig. 4), and in that position it is fixed. gtami 47 through the holes 48 (fig. 2).

The pipe bender works as follows.

The pipe 32 is brought into the corresponding stream of the template (in this case, the stream 30) so that it rests on the stop 40 in the corresponding stream. This bending roller should be in its initial position - 5 SRI (omitted from the vertical plane, as shown in Fig. 1). Thus, the pipe is actually inserted into a non-closed opening formed by the profile of the stream 39 on one side, and on the other side by the stream 34, on the bending roller. The pipe can be turned both from the side of the stop 40, and from its opposite side, based on the conditions of formation of the place of bending of the pipe.

In order to bend pipes, the lever is transferred with the necessary force from the rightmost side of the right (Fig. 1) B counterclockwise. At the same time, the bending roller 9 bends the pipe into the template flow and runs around its outer surface.

0

0

The bending angle of a single transition can be obtained in the range from 0 to 90 °, and the cycle is repeated to bend at a larger angle, for which the bending roller 9 is brought to its lowest position (Fig. 1) and the pipe is pulled to the right by the required amount .

Claims (2)

1. A pipe bender containing a base with a cantilever-fixed axis with a cantilever axis, a bending template with a hole for landing on the axle, a brace strap with a handle. After the bending is completed, the pipe is removed at the initial position of the bending roller (Fig. 1), and when To form a pipe in order to fix the bending template, there are several bends in different planes, a barrel area, as well as a bending roller, which prevent dragging along the brook, which is mounted on the holder connected to the stand, the template is opened. To do this, strike the finger 22 with a hammer, for example, with a hammer, counterclockwise and then which middle part and the non-working end are driven, characterized in that, in order to expand the technological possibilities  the template 20 to the left until it stops so that 15 due to the provision of flexible pipes in different cylindrical section 28 of the hole 26 becomes coaxial with axis 5, after which the template is rotated on axis 5. The pipe 32 is completely free and can be mixed into the gap between the roller and the template and easily is drawn in the direction perpendicular to the plane of the drawing. To bend another pipe, the template is closed with a strip, as shown in FIG. one. In a similar way, the process of pipe bending is performed using a screw drive. At the same time, the screw is rotated through the extension handle when not fully using the pipe bender. In the same double-sleeved pattern, pipes of the same diameter with different radii can be bent. Or pipes of different diameters. The pipe bender is easy to maintain, fast-acting, transportable, versatile, has wide technological capabilities. planes, resistant plate freely installed ia OS .; i1ablops on the 6oKOBoii, the piori of the template is made with the on-face surface for the end face of the stop g, the seat on the axis for the template is made in the form of a neck with flat parallel sections and with a length equal to the template width, the template hole is made with a section corresponding to the neck, and a cylindrical section adjoining it with a diameter corresponding to the axis diameter, and the holder of the bending roller is mounted on the n axis of the cylinder with the possibility of swinging in the plane of the bend. 2. A tube bender in accordance with claim 1, characterized in that the drive of the bending roller holder is made in the form of a screw pair of nuts hinged to the holder, the screw of which is hinged at one end on the base with the possibility of rolling in the plane of the handle and grip, hingedly x, is used in a modal plot. Invention Formula 1. A pipe bender containing a base with a yoke fixed with a cantilever axis, a bending template with a hole for landing on the axle, a mounting bar with a handle for fixing the bending template in the working area, and a bending roller mounted on the holder, related to for fixing the bending template in the working area, as well as the bending roller mounted on the holder connected to the stand which middle part and the non-working end are driven, characterized in that, in order to expand the technological possibilities by providing bending pipes in different by providing bending pipes in different 0 planes, resistant plate freely installed ia OS .; i1ablops on the 6oKOBoii, the piori of the template is made with the on-face surface for the end face of the stop g, the seat on the axis for the template is made in the form of a neck with flat parallel sections and with a length equal to the template width, the template hole is made with a section corresponding to the neck, and a cylindrical section adjoining it with a diameter corresponding to the axis diameter, and the holder of the bending roller is mounted on the n axis of the cylinder with the possibility of swinging in the plane of the bend. 2. The tube bender according to claim 1, characterized in that the drive of the bending roller holder is made in the form of a screw pair of nuts hinged to the holder, the screw of which is hinged at one end on the base with the possibility of rolling in the plane of the holder and handle, hingedly Possibilities for pipe bending in several flat screws with the other end of the screw. J7 J2 yy LA r 12  / vx t kJ y / s 20 0 / X ten 13  /. 47 47 6 srigL Z Yr FIG. 6 YES 15 7 15 FIG. 7 2 CPU d. 8 FIG. 9