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Space pipe fitting flexible bending and torsion forming device

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: 2017-05-31
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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  • Space pipe fitting flexible bending and torsion forming device
  • Space pipe fitting flexible bending and torsion forming device
  • Space pipe fitting flexible bending and torsion forming device

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Experimental program
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Embodiment Construction

[0027] This embodiment is a flexible bending torsion forming device for a space pipe. Through the coordinated control of the feeding mechanism, the movable mold control mechanism and the torsion mechanism, the space pipe is formed. The pipe 3 is inserted into the fixed mold assembly 8 and the bending mold assembly 7 through the hollow shaft 22 on the torsion mechanism 4, and the pipe 3 is clamped by the three-jaw chuck 28 to realize the pipe torsion movement. The first feeding mechanism 2 drives the torsion mechanism 4 and the pipe 3 to approach the fixed die assembly 8 to realize the pipe feeding movement. The second feeding mechanism 5 drives the movable mold control mechanism 6 to rotate the movable mold assembly 7 relative to the fixed mold assembly 8 to achieve bending in one direction. The movable mold control mechanism 6 is provided with a feather key cylinder 44 and a feather key shaft 45, which is adapted to the change of the distance between the sliding block 14 and ...

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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 torsion forming device for space pipe fittings. Background technique [0002] The space pipe flexible bending forming device is applied to the technical field of pipe plastic processing, and can be formed into pipes with different shapes according to different application requirements. From the perspective of structural features, the flexible bending forming device for space pipes 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 pipe bending mechanism that can be used to form spatial multi-turn components", but it cannot form continuous spatial spline components. European patent EP2399688A1 discloses "a three-roller push-bending forming method", which generates a space pipe by applying torque on a feeding mechanism. The formi...

Claims

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Application Information

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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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