Long U pipe bending machine and operation method thereof

Abstract

The invention discloses a long U pipe bending machine. The long U pipe bending machine comprises a machine table provided with a control electric box, and further comprises a cut-off mechanism, a bending mechanism and a clamping and feeding mechanism which are arranged on the machine table. The cut-off mechanism is arranged in the middle part of the machine table and applied to cut a pipe according to a predetermined length; the bending mechanism is arranged at one end of the machine table and applied to bend the pipe into a predetermined shape; the clamping and feeding mechanism is arranged between the cut-off mechanism and the bending mechanism and applied to clamp the pipe and feed the pipe in the direction from the cut-off mechanism to the bending mechanism. The long U pipe bending machine has following technical effects that firstly, the structure is more compact; secondly, operating power is small and rated power is low; thirdly, the number of equipment spare and accessory partsis reduced nearly one third, so that cost is lower and maintenance is easier; fourthly, the degree of automation is high and labor intensity is reduced; and fifthly, when different lengths of bobby pin pipes are produced, accessories do not need to be changed and the degree of intelligence is higher, and thus the production efficiency can be improved. The invention further discloses an operating method of the long U pipe bending machine.

Description

technical field [0001] The invention relates to pipe fitting processing equipment, in particular to a long U-pipe bending machine and an operating method thereof. Background technique [0002] Long U tube, also called hairpin tube, is a long U-shaped tube, usually made of copper tube or aluminum tube, and is the main accessory of heat exchange tube. In actual use, it is generally connected with a short U-shaped joint to form a U-shaped tube radiator, which is widely used in the field of heat exchange. [0003] At present, hairpin tubes, especially those used in air conditioner heat exchangers, generally use figure 1 The pipe bending machine shown in the above generally adopts the method of "cutting" - "bending", which has a low degree of automation, a high rate of defective products, and there are many spare parts on the machine, which occupies a large area. A in the figure shows the length adjustment area of ​​the pipe fittings. Basically, every time a hairpin tube of a l...

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Problems solved by technology

[0003] At present, hairpin tubes, especially those used in air conditioner heat exchangers, generally use figure 1 The pipe bending machine shown in the above generally adopts the method of "cutting" - "bending", which has a low degree of automation, a high rate of defective products, and there are many spare parts on the machine, which occupies a large area.

A in the figure shows the length adjustment area of ​​the pipe fittings. Basically, every time a hairpin tube of a length specification is processed, it is necessary to stop the machine and manually adjust the length of the length adjustment area, which is extremely inconvenient to operate.

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