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Bent pipe forming device and bent pipe forming method

A technology of forming device and forming method, applied in forming tools, metal processing equipment, manufacturing tools, etc., can solve problems such as poor quality of elbows, avoid pipe wall deformation, improve product quality, and reduce pipe wall deformation.

Pending Publication Date: 2019-11-12
HENAN YONGFUDE SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the embodiments of the present application is to provide a pipe bend forming device, which aims to improve the problem of poor quality of pipe bends pressed by existing pipe benders

Method used

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  • Bent pipe forming device and bent pipe forming method
  • Bent pipe forming device and bent pipe forming method
  • Bent pipe forming device and bent pipe forming method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] figure 1 A schematic structural diagram of the elbow forming device 100 provided in Embodiment 1 of the present application is shown, please refer to figure 1 , this embodiment provides an elbow forming device 100, and the elbow forming device 100 is mainly used for pressing an elbow to manufacture an elbow or an elbow. The elbow forming device 100 includes a mold 110 and a pressure assembly 120 .

[0053] figure 2 A schematic structural view of the mold 110 provided by the embodiment of the present application is shown, image 3 A schematic structural view of another state of the mold 110 provided by the embodiment of the present application is shown.

[0054] see Figure 1 to Figure 3 . The elbow forming device 100 is provided with a mold cavity 111 extending along a first direction 101 . The parting surface of the mold 110 is a curved surface. The mold cavity 111 is used to place a straight pipe, and under the action of the mold 110 , the straight pipe is pre...

Embodiment 2

[0113] The present application also provides a bend pipe forming method, Figure 9 The main flowchart of the elbow forming method provided by Embodiment 2 of the present application is shown. In this embodiment, the elbow forming method adopts the elbow forming device 100 provided in Embodiment 1 to form an elbow.

[0114] See Example 1 and Figure 1-Figure 9 . In this embodiment, the elbow forming method includes:

[0115] Step S1: Make a preset distance between the fixed lower mold 130 and the movable lower mold 140 . Before the upper die 150 is pressed down, there is a preset distance between the fixed lower die 130 and the movable lower die 140. The distance gradually decreases until it is close to zero.

[0116] In this embodiment, the preset distance is set to be less than or equal to the maximum distance that the first guide part 141 and the second guide part 151 resist and move relative to each other, so that after the upper mold 150 is pressed down, the first gui...

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Abstract

The invention relates to the field of bent pipe forming, in particular to a bent pipe forming device and a bent pipe forming method. The bent pipe forming device comprises a base, a fixed lower mold,a moving lower mold, an upper mold and a pressure assembly; and the moving lower mold is provided with a first guide part, the upper mold is provided with a second guide part matched with the first guide part, the first guide part can abut against the second guide part and can relatively move to enable the moving lower mold to get close to the fixed lower mold and be subjected to mold assembly, and the pressure assembly comprises a liquid inlet pipe, a control valve, a pressure sensor and a pipe segment joint. In the mold assembly process, a straight pipe shrinks towards the middle from the two ends, and bears bending stress of a mold, and the gap between the fixed lower mold and the moving lower mold continuously releases the bending stress of the straight pipe. The problem that due to the large bending stress differences, a bent pipe is not uniform in thickness can be solved, the bent pipe quality is improved, the pressure assembly controls the pressure of fluid in the straight pipe,the in-pipe pressure is increased at the moment of mold assembly, the pipe body and the mold cavity wall are attached, and deforming of the bent pipe is avoided.

Description

technical field [0001] The present application relates to the field of pipe bend forming, in particular, to a pipe bend forming device and a pipe bend forming method. Background technique [0002] Bend pipes are usually made by pressing straight pipes with bending dies. The bent pipes formed by existing straight pipe bending machines have problems of poor quality, for example, large differences in thickness and large deformation of bent pipes. Contents of the invention [0003] The purpose of the embodiment of the present application is to provide a bent pipe forming device, which aims to improve the problem of poor quality of the bent pipe pressed by the existing pipe bending machine. [0004] The first aspect of the present application provides an elbow forming device. The elbow forming device is provided with a cavity extending along a first direction. The elbow forming device includes a base, a fixed lower die, a movable lower die, an upper die and a pressure assembly....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D7/06B21D37/10
CPCB21D7/06B21D37/10
Inventor 王朝永方峥
Owner HENAN YONGFUDE SCI & TECH CO LTD