SU647035A1

SU647035A1 - Tube-bending machine

Info

Publication number: SU647035A1
Application number: SU762405777A
Authority: SU
Inventors: Борис Михайлович Колявкин; Игорь Викторович Никитин; Рюрик Игоревич Тавастшерна
Original assignee: Предприятие П/Я В-2946; Всесоюзный Научно-Исследовательский Институт По Монтажным М Специальным Строительным Работам
Priority date: 1976-09-15
Filing date: 1976-09-15
Publication date: 1979-02-15

Description

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Изобретение относитс к трубогибочному производству и может быть использовано в нефт ной, газовой и других отрасл х промышленности при изготовлении согнутых элементов трубопроводов.The invention relates to pipe bending production and can be used in the oil, gas and other industries in the manufacture of bent piping elements.

Известен станок дл гибки труб с зональным индукционным нагревом, снабженный водилом. В таком станке .один конец трубыA known machine for bending pipes with zone induction heating, provided with a carrier. In such a machine. One end of the pipe

закрепл етс в поворотном водиле, а другому .концу придаетс пр молинейное осевое перемещение, в результате которого труба изгибаетс . Радиус гибки определ етс положением оси поворотного водила 1. Однако известный станок имеет одно поворотное водило, и на нем без перестановки фубы можно получить только один согнутый участок.is fixed in the swivel cage, and to the other end is attached a straight linear axial movement, as a result of which the pipe is bent. The bending radius is determined by the position of the axis of the rotary carrier 1. However, the known machine has one rotary carrier, and on it, without shifting the cuba, only one bent portion can be obtained.

Наиболее близким к предлагаемому из известных станков дл гибки труб с зональным индукционным нагревом вл етс ста ,нок, содержащий станину с установленными на ней кареткой продольной подачи, индукционным нагревателем дл нагрева труб и гибочными поворотными водилами, смонтированными , на ос х, расположенных по разные стороны от индукциолного нагревател в Плоскости, перпендикул рной плоскости The closest to the proposed of the known machine for bending pipes with zone induction heating is a hundred, comprising a frame with a longitudinal feed carriage mounted on it, an induction heater for heating the pipes and bending rotary saws mounted on axes located on opposite sides from an induction heater in a plane perpendicular to the plane

гибки и проход щей через центр изгиба трубы 2.bending and passing through the center of the bend of the pipe 2.

Однако известный станок не обеспечивает получение на одной трубе нескольких согнутых участков без прерывани процесса гибки и перестановки зажимов поворотных водил. Вс кое прерывание процесса гибки с выключением нагрева трубы снижает качество изготовлени согнутых участков и производительность станка.However, the known machine does not provide on one pipe several bent sections without interrupting the bending process and rearranging the clamps of the swivel carriers. The complete interruption of the bending process with shutdown of the heating of the pipe reduces the quality of production of the bent sections and machine productivity.

Цель изобретени - повышение производительности станка.The purpose of the invention is to increase the productivity of the machine.

Дл этого водила- установлены один на другом с возможностью поворота При этом верхнее водило снабжено зажимом, а нижнее -ограничителем поворота верхнего водила и гнездом дл фиксатора, смонтированного на станине.For this carrier, they are mounted one on another with the possibility of rotation. In this case, the upper carrier is equipped with a clip, and the lower one - with a limiter of rotation of the upper carrier and a socket for a clamp mounted on the frame.

Claims

FIG. 1 shows the proposed machine, a general view; in fig. 2 — view along arrow A of FIG. one; in fig. 3 - the relative position of the parts of the machine in the initial position; in fig. 4 is the same after receiving the first bent portion on the tube; in fig. 5 - The same, after receiving the second bent section on the pipe. On the machine frame 1, a heating source for the pipe in the form of an inductor 2 and a high-quality transformer 3, feed carriage 4 with drive mechanism 5, guide rollers 6, main carrier 7 rotatable around axis 8 are mounted. FieM mounted carrier 9, rotary around axis 10 and provided with a clamp 11, as well as a stopper 12 retracting when the bent pipe is removed from the machine. The limiter 12 has a limit switch (not shown). The main carrier 7 is fixed in its initial position by means of a controlled latch 13 mounted on the bed 1. The carriage 4 is made movable along the lead screw 14 rotated by the actuator 5. The pipe billet 15 is placed inside the ring inductor 2 between the guide roller 6 and fixed in the clamp of the carriage 4 and the clamp 1 of the carrier 9. The proposed machine works in the following manner. The workpiece 15 is installed on the machine and secured in the clamps, induction heating of the workpiece 15 is turned on, and the drive 5 moves the carriage 4 and the workpiece 15 clamped in it towards the carrier 9. Because the workpiece 15 is fixed in the clamp 11 of the carrier 9, and the main carrier 7 is secured with a lock 13, moving the workpiece causes the carrier 9 to rotate around the axis 10. The workpiece 15 bends in a heated section by a radius equal to the distance from the axis 10 to the axis of the workpiece 15. The speed of movement of the workpiece 15 is chosen equal to the heating rate of its inductor, and It goes all the way to the carrier 9 in the limiter 12. Then the limit switch is triggered, which sends a signal that the latch 13 departs from the main carrier 7 and allows it to rotate around the axis 8. Bending the workpiece to the other side starts fia radius equal to the distance from axis 8 to. billet axis 15. Bending continues at a constant speed until the specified angle of the second bend is reached. After this, induction heating is turned off and the longitudinal feed of the carriage 4 is stopped, the clamps break, the stopper 12 is lowered, and the carrier 9 is retracted to a position convenient for removal from the machine of the finished product. After removing the bent pipe, the machine mechanisms return to their original position, the machine is ready for loading the next billet. The invention makes it possible to accelerate the process of making bent pipe sections, to improve their quality, since the bending of two conjugate radii is carried out without stopping the machine. An invention of a pipe bending machine comprising a frame with a longitudinal feed carriage mounted on it, an induction heater for heating the tubes, and bending rotary carriers mounted on axes located on opposite sides of the induction heater in the plane perpendicular to the plane of the bend and the passage pipe through the center of the bend, characterized in that., in order to increase productivity, the carrier is mounted one on another with the possibility of rotation, while the upper carrier is provided with a clip, and the lower - a limiter of rotation of the upper carrier and a slot for a clamp mounted on the frame. Borrowers of information taken into account during the examination 1. Author's certificate number G19775, Kji. B 21 D 7/16, 1957.

2. Certificate of author No. 239772, cl. B 21 D 7/00, 1966.

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