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Hard tube end forming equipment and forming method

A pipe end forming and hard pipe technology, applied in the field of hydraulic machinery, can solve the problems of difficult control of welding quality, low production efficiency, limited capacity expansion, etc., and achieve the effect of improving labor efficiency, good forming quality and improving forming quality

Active Publication Date: 2012-06-13
ZOOMLION HEAVY IND CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For a long time, there are two main ways to produce hydraulic hard pipes. One is to buckle the ferrule outside the steel pipe and seal it with the conical surface of the ferrule or the conical surface plus a sealing ring. The advantage of this production method is high production efficiency. The disadvantage is poor repeatability, ferrule is restricted by imported parts, high cost, and capacity expansion is limited
The other is to weld standard joints to steel pipes by welding. The advantage of this production method is that the joints are better sealed, but the disadvantages are that the production efficiency is low, the welding quality is difficult to control, and welding quality defects are easy to cause leakage and blockage

Method used

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  • Hard tube end forming equipment and forming method
  • Hard tube end forming equipment and forming method
  • Hard tube end forming equipment and forming method

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Embodiment Construction

[0033] Hereinafter, the present invention will be described in detail with reference to the drawings and in conjunction with the embodiments. It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other if there is no conflict.

[0034] Such as figure 2 with image 3 As shown, according to the embodiment of the present invention, the tube end forming equipment of a hard tube includes a work support table 70, a feeding part 10, a clamping part 20, an extrusion forming part 30 and a heating part 50. The clamping part 20, the extrusion forming part 30 and the heating part 50 are sequentially arranged along the feeding direction of the feeding part 10. The feeding part 10 is arranged at the outer end of the extrusion forming part 30 and drives the extrusion forming part 30 to move away from or close to the hard tube 40 to be formed. The clamping part 20 clamps the hard tube 40 to be formed so that the hard tube 40 to...

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Abstract

The invention provides hard tube end forming equipment and a forming method. The hard tube end forming equipment comprises a feeding portion (10), a clamping portion (20) and an extrusion forming portion (30), wherein the clamping portion (20) is used for fixing a hard tube (40) to be formed, and the extrusion forming portion (30) is used for forming a tube end structure of the hard tube (40) to be formed. The hard tube end forming equipment is characterized in that a heating portion (50) is further arranged between the clamping portion (20) and the extrusion forming portion (30). The hard tube end forming equipment is stable in structure, high in reliability, low in cost, high in production efficiency, high in positioning precision and fine in forming quality.

Description

Technical field [0001] The invention relates to the field of hydraulic machinery in engineering machinery, and in particular to a hard tube end forming equipment and a forming method. Background technique [0002] Hydraulic hard pipes are widely used in construction machinery, especially in the high-pressure field. Because of their unique stability, they have attracted much attention, and because their production costs are much lower than rubber hoses, hydraulic hard pipes are replaced by hydraulic pipes without relative movement. The trend of the hose at the location is becoming more and more obvious. For a long time, there have been two main methods for the production of hydraulic hard pipes. One is to buckle the ferrule outside the steel pipe and use the tapered surface or the tapered surface of the ferrule to seal with a sealing ring. The advantage of this production method is high production efficiency. The disadvantages are poor re-assembly, the ferrule is restricted by im...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D19/00B21D37/16
Inventor 曾利成梁莎
Owner ZOOMLION HEAVY IND CO LTD
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