MOBILE FLANGING MACHINE AND METHOD OF ASSEMBLING A MOBILE FLANGING MACHINE

Abstract

A mobile flanging machine for pipes has a portable frame on which a drive is mounted, which drives a roller via a transmission, and an adjustment mechanism fixed to the frame, on which a counter-pressure roller is movably held, wherein a bent flange can be produced on the pipe end by inserting a pipe end into a gap between the roller and the counterpressure roller. A method for assembling the mobile flanging machine involves transporting and setting up a frame with a rotatably mounted roller and an adjustment mechanism on which a counterpressure roller is movably held, transporting a drive with a first coupling part to the frame, connecting the first coupling part to a second coupling part for driving the roller, and fixing the drive to the frame.

Claims

1. A mobile flanging machine (1) for pipes, comprising: a portable frame (2), a drive (3) mounted on the portable frame, a roller (5) that is configured to be driven by the drive via a transmission (16), adjustment mechanism (6) fixed to the frame (2), and a counterpressure roller (7) movably held on the adjustment mechanism (6), wherein a bent-over flange is produced on a pipe end by inserting the pipe end into a gap between the roller (5) and the counterpressure roller (7).

2. The mobile flanging machine according to claim 1, wherein the drive (3) is detachably fixed to the frame (2).

3. The mobile flanging machine according to claim 1, wherein the drive (3) is engaged with the transmission (16) via a coupling part (17, 18).

4. The mobile flanging machine according to claim 3, wherein the coupling part (17, 18) is designed as a claw coupling.

5. The mobile flanging machine according to claim 1, wherein the flanging machine (1) has a total weight of less than 130 kg.

6. The mobile flanging machine according to claim 1, wherein the frame (2) is substantially cuboidal and has interconnected profiles (20, 21).

7. The mobile flanging machine according to claim 1, wherein the adjustment mechanism (6) is designed as a toggle lever mechanism.

8. The mobile flanging machine according to claim 1, wherein a foot lever is provided on the adjustment mechanism (6) and configured for actuating or moving the counterpressure roller (7).

9. The mobile flanging machine according to claim 1, wherein the drive (3) comprises an electric motor connected to the coupling part (17, 18) via an angular gear (4).

10. The mobile flanging machine according claim 1, wherein a housing is provided around the frame (2) and the drive (3).

11. The mobile flanging machine according claim 1, wherein a contact surface is provided around the roller (5) for limiting the axial movement of the pipe.

12. The mobile flanging machine according to claim 11, wherein the contact surface comprises a plurality of strips (9) fixed to an upper side of a cover plate (8).

13. The mobile flanging machine according to claim 12, wherein the strips (9) are screwed to the frame (2).

14. A method for assembling a mobile flanging machine (1) comprising the following steps: transporting and setting up a frame (2) with a rotatably mounted roller (5) and an adjustment mechanism (6) on which a counterpressure roller (7) is movably held; transporting a drive (3) with a first coupling part (17) to the frame (2); connecting the first coupling part (17) to a second coupling part (18) for driving the roller (5), and fixing the drive (3) to the frame (2).

15. The method according to claim 14, wherein a housing is mounted around the frame (2) and the drive (3).

Description

[0016] FIG. 1 shows a perspective view of a mobile flanging machine according to the invention;

[0017] FIG. 2 shows an exploded view of the flanging machine of FIG. 1;

[0018] FIG. 3 shows a top view of the flanging machine of FIG. 1;

[0019] FIG. 4 shows a side view of the flanging machine of FIG. 1, and

[0020] FIG. 5 shows a cutaway side view through the flanging machine of FIG. 1.

[0021] A mobile flanging machine 1 comprises a frame 2 which is substantially cuboidal in shape and has a drive 3 in the form of an electric motor projecting from one end face. The drive 3 is connected to an angular gear 4 to transmit a rotational movement of the drive 3 to a roller 5, which is arranged on an upper side of the frame 2. To ensure safety, a housing is provided around the frame 2 and the drive 3, which is not shown in FIG. 1.

[0022] An adjustment mechanism 6 in the form of a lever mechanism is arranged in the frame 2, in particular a toggle lever mechanism, via which a counterpressure roller 7 is rotatably and movably mounted. A pipe end can be inserted into a gap between the roller 5 and the counterpressure roller 7 in order to be de-formed by rotation of the roller 5 and the introduction of force via the counter-pressure roller 7, in particular to be provided with a radially projecting flange. For this purpose, the roller 5 is profiled and comprises a radially protruding section 50 and a cylindrical section 51 of smaller diameter. The profiling of the roller 5 and the counterpressure roller 7 can also be selected differently to shape the bend at the end of the pipe. Below the roller 5, a cover plate 8 is fixed to the frame 2, on which several strips 9 are arranged, which are screwed to the frame 2. The strips 9 form a contact surface to limit axial movement of the pipe during forming. The diameter of the pipe to be formed can be freely selected in wide ranges, for example the pipe can have a diameter between 50 mm to 400 mm, in particular 80 mm to 315 mm. For other wall thicknesses, the roller 5 can be exchanged for flanging.

[0023] The adjustment mechanism 6 preferably comprises a toggle mechanism with two articulated levers 11 and 12, which act on a lever 13 on which the back pressure roller 7 is rotatably mounted. As shown in FIG. 5, the lever 13 is rotatably mounted about an axis 14, which is formed at an angle 19. The adjustment mechanism 6 can be designed as a preassembled unit as shown in FIG. 2 and can be actuated manually or by motor. In the embodiment shown, an electric motor 22 is provided as a drive that acts on the levers 11 and 12 to move the lever 13 and thus the counterpressure roller 7. Via the electric motor 22, the counterpressure roller 7 can be moved towards and away from the roller 5 in order to deform a pipe end.

[0024] The frame 2 comprises longitudinal profiles 20 and transverse profiles 21, which are connected to each other. The adjustment mechanism 6 is fixed to the frame 2 at two transverse profiles 21. Furthermore, a housing 15 is fixed to the frame 2, on which the roller 5 is rotatably mounted. A transmission 16 is provided in the housing 15, which can be engaged with the angular gear 4 and the drive 3 via a coupling. A first coupling part 17 is arranged on the angular gear 4 on the output side, which is part of a claw coupling.

[0025] As shown in FIGS. 4 and 5, the first coupling part 17 is engageable with a second coupling part 18 to transmit torque from the drive 3 to the roller 5. The second coupling part 18 is connected to the transmission 16.

[0026] When the mobile flanging machine 1 is to be set up at a location, for example at a construction site where pipelines are being installed, the drive 3 with the angular gear 4 can be disassembled from the frame 2 so that the coupling with the first coupling part 17 and the second coupling part 18 are disengaged. The drive 3 with the angular gear 4 can then be transported as a separate unit, and the actuator with the angular gear and the frame 2 with the adjustment mechanism 6 can each have a weight between 20 to 40 kg to be transported separately. At the desired location, the first coupling part 17 on the angular gear 4 can then be brought into engagement with the second coupling part 18 to then fix the drive 3 to the frame 2 before the mobile flanging machine 1 is put into operation.

[0027] In the example shown, the force of the adjustment mechanism is applied via a lever mechanism. However, it is also possible to effect a force transmission via a rotary drive and a gear, for example with a spindle or gearwheels. Other mechanisms than shown can also be used for force transmission. It is also possible to produce a linear adjustment using a wedge principle instead of the toggle principle.

[0028] A counter can be provided on the mobile flanging machine to record the number of flanging processes. This can be implemented, for example, via a mechanical button for a swiveling unit. The counter can thus be used to measure the number of flanging operations.

[0029] Furthermore, a guide rail may be provided to guide the motor during an assembly movement. The guide can be provided with a stop so that a motor mount is in alignment with the coupling from coupling parts 17 and 18. This position can then be fixed by a screw or other fastener.

LIST OF REFERENCE SIGNS

[0030] 1 Mobile flanging machine [0031] 2 Frame [0032] 3 Drive [0033] 4 Angular gear [0034] 5 Roller [0035] 6 Adjustment mechanism [0036] 7 Counterpressure roller [0037] 8 Cover plate [0038] 9 Strip [0039] 11 Lever [0040] 12 Lever [0041] 13 Lever [0042] 14 Axis [0043] 15 Housing [0044] 16 Transmission [0045] 17 First coupling part [0046] 18 Second coupling part [0047] 19 Angle [0048] 20 Longitudinal profile [0049] 21 Transverse profile [0050] 22 Electric motor [0051] 50 Radially protruding section [0052] 51 Cylindrical section