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Pipe end extrusion molding machine

A technology of forming machine and pipe end, applied in the direction of metal extrusion, metal extrusion die, metal extrusion control equipment, etc. Ring mismatch and other problems, to achieve the effect of good molding quality, low noise, and overall performance enhancement

Inactive Publication Date: 2010-06-23
CHINA NAT OFFSHORE OIL CORP +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The welding connection is generally welded by circular seam, which is easy to produce welding slag, pollutes the environment during operation, poor working conditions, and unsafe
The connection method of ferrule-type pipe fittings requires that the snap ring and the steel pipe are connected by interference, so the material properties, outer diameter and roundness of the steel pipe are required to be high, and the requirements for the size and heat treatment of the snap ring are also very high. , so in the process of use, there are often cases where the pipeline and the snap ring do not match each other, causing leakage; in addition, the snap ring can only be used once, which increases the cost of repair and maintenance; moreover, the failure of the snap ring pipe fitting connection The method is in the form of injection. When it is applied in a pressure situation, such as a hydraulic system, it will cause a large amount of hydraulic oil to leak out.

Method used

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  • Pipe end extrusion molding machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Extrude a 316 stainless steel tube with a diameter of 12.7 mm and a wall thickness of 1.24 mm. Pull out the positioning pin (71), rotate 90 degrees and put it down; operate the rotating handle (72), turn the machine head (7); put it into the clamping mold (8), and put the extrusion mold (9) into the machine head (7 ) and tighten it clockwise; after the clamping mold (8) is tightened clockwise (about 5 turns), turn the positioning pin (71) 90 degrees and put it down, when the positioning pin (71) automatically falls into the pin hole, that is Stop the rotation; press the preload switch A to preload, so that the clamping mold (8) is automatically adjusted in place, and the nut is inserted into the steel pipe to be processed; the diameter to be extruded is 12.7mm, and the wall thickness is Put the 1.24mm 316 stainless steel pipe into the machine head (7), press the squeeze switch C, press the squeeze switch C, the programmable logic controller (PLC) (3) receives the signal...

Embodiment 2

[0053] Extrude a carbon steel pipe with a diameter of 33.4mm and a wall thickness of 4.55mm. Pull out the positioning pin (71), rotate 90° and put it down; operate the rotating handle (72), turn the machine head (7), put it into the clamping mold (8), and put the extrusion mold (9) into the machine head (7 ) and screw it clockwise; after the clamping mold (8) is screwed clockwise (about 5 turns), turn the positioning pin (71) down by 90°, when the positioning pin (71) automatically falls into the pin hole, that is Stop the rotation; press the pre-press switch A to pre-press, so that the clamping mold is automatically adjusted in place, and the nut is inserted into the steel pipe to be processed; the diameter to be extruded is 33.4mm, the wall thickness is 4.55mm Put the carbon steel pipe into the machine head (7), press the squeeze switch C, press the squeeze switch C, the programmable logic controller (PLC) (3) receives the signal, and the hydraulic mechanism oil pump (5) sup...

Embodiment 3

[0055] Select the extruded steel pipes of the above-mentioned embodiment 1 and embodiment 2. After placing a special sealing ring at the extruded pipe port, use a pipe joint to connect the two pipe ends of the extruded steel pipe of the same size. After the oil pressure test, the pressure rating of the pipe fittings is above 40Mpa.

[0056] The production plant of the pressure sensor involved in the embodiment of the present invention is: Swiss Xiuba Huba, the model is 0511.943253542; the production plant of the displacement sensor is: Japan Omron, the model is E2E-X2-3DIS; Products for sale; the content not described in the embodiments is prior art, so no more details are given.

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Abstract

The invention provides a pipe end extrusion molding machine, comprising a frame, a hydraulic mechanism, an electric control mechanism, a compound hydro-cylinder, a pressurized cylinder, a mould and a nose. The hydraulic mechanism, the electric control mechanism and the pressurized cylinder are arranged in the frame; the compound cylinder, the mould and the nose are arranged on the panel of the frame; the mould is positioned in the nose and is connected with the compound cylinder; the electric control mechanism is connected with the hydraulic mechanism and the pressurized cylinder respectively; the hydraulic mechanism is connected with the pressurized cylinder through a hydraulic oil pipe, and is connected with the compound cylinder through an oil return pipe; the compound cylinder and the pressurized cylinder are connected through the hydraulic oil pipe; and a required specific shape can be extruded at the pipe end by a cold extruding method so as to realize pipeline extrusion molding connection. The machine has reasonable structure design, can be applied to pipeline pipe end extrusion molding in various sizes, has evenly pressurized pipe ends, good quality of molding manufacture, safe and reliable performance, stable operation, small noise and high working efficiency.

Description

technical field [0001] The invention relates to pipeline connection equipment, in particular to a pipe end extrusion molding machine. Background technique [0002] In the technical fields of petroleum, petrochemical, shipbuilding, drilling, construction machinery, etc., pipelines are very important components. For example, water, gas, oil, etc. involved in engineering in these technical fields are all transmitted through the connection of pipelines. to related equipment and components. [0003] At present, the connection of pipelines usually includes two connection methods: welding and non-welding. For pipelines with a diameter of less than 50mm, the welding method is usually used in the occasions where the pressure is low and the cleanliness of the pipeline is not very high, while the application fields with high requirements for pressure and cleanliness, such as hydraulic systems, usually use What is more important is the connection method of ferrule-type pipe fittings a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C23/02B21C23/21B21C26/00B21C31/00B21C25/02
Inventor 吴定安虞明星沈岚白秉仁李淑民王东锋韩小宁
Owner CHINA NAT OFFSHORE OIL CORP
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