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A flexible bending and twisting forming device for space pipe fittings

A pipe fitting and bending technology, which is applied in the field of flexible bending and torsion forming devices for space pipe fittings, can solve the problems of many degrees of freedom of the movable die and troublesome motion control.

Active Publication Date: 2018-05-01
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this forming method is that there are more degrees of freedom in the movable mold, and the motion control is more troublesome.

Method used

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  • A flexible bending and twisting forming device for space pipe fittings
  • A flexible bending and twisting forming device for space pipe fittings
  • A flexible bending and twisting forming device for space pipe fittings

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Embodiment Construction

[0027] This embodiment is a flexible bending and twisting forming device for space pipes. Through coordinated control of the feeding mechanism, the movable mold control mechanism and the twisting mechanism, the space pipe is formed. The pipe material 3 is inserted into the fixed mold assembly 8 and the movable mold assembly 7 through the hollow shaft 22 on the torsion mechanism 4, and the pipe material 3 is clamped by the three-jaw chuck 28 to realize the pipe material torsion movement. The first feeding mechanism 2 drives the twisting mechanism 4 and the pipe material 3 to approach the fixed die assembly 8 to realize the feeding movement of the pipe material. The second feeding mechanism 5 drives the movable mold control mechanism 6 to make the movable mold assembly 7 rotate relative to the fixed mold assembly 8 to realize bending in one direction. Movable mold control mechanism 6 is provided with feather key barrel 44 and feather key shaft 45, adapts to the distance change ...

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Abstract

The invention discloses a space pipe fitting flexible bending and torsion forming device which is used for forming space pipe fittings of any geometric shape. A movable die control mechanism controls the relative position of a movable die and a fixed die to control the bending radius, the torsion angle of a torsion mechanism is controlled to change the bending plane, feeding mechanisms are controlled to achieve continuous feeding, and thus the space pipe fittings are formed. A three-jaw chuck on the torsion mechanism is utilized to clamp the pipe fittings, and torsion movement of the pipe fittings is achieved. The torsion mechanism is fixed to the first feeding mechanism to achieve feeding movement of the pipe fittings. The movable die control mechanism is installed on the second feeding mechanism and drives a movable die assembly to be deviated relative to a fixed die assembly when the second feeding mechanism works to achieve bending operation. The movable die control mechanism drives the movable die to rotate relative to the fixed die, and adjustment is flexible. The feeding mechanisms are driven by motors, and the torsion mechanism and a bending mechanism are driven to achieve bending and torsion forming of the space pipe fittings in multiple directions.

Description

technical field [0001] The invention relates to the technical field of plastic processing of metal pipe fittings, in particular to a flexible bending and torsion forming device for space pipe fittings. Background technique [0002] The space pipe fitting flexible bending forming device is applied in the technical field of pipe fitting plastic processing, and can form pipe fittings with different shapes according to different application requirements. From the perspective of structural features, the flexible bending forming device for space pipe fittings is mainly composed of a feeding mechanism, a frame, a fixed mold, a movable mold and a movable mold operating mechanism. US Patent No. 4,416,136 proposes "a bending mechanism that can be used to form space multi-inflection components", but it cannot form continuous space spline components. European patent EP2399688A1 discloses "a three-roller push-bending forming method". The space pipe is generated by applying torque to the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D7/00
CPCB21D7/00
Inventor 吴建军张增坤陈林杰叱鑫田来龚一甲
Owner NORTHWESTERN POLYTECHNICAL UNIV
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