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Internal expanding type clamping mechanism of large-caliber hot bend bevelling machine

A technology of hot simmering pipe bending and clamping mechanism, which is applied in the field of metal pipe processing and piping system, and can solve the problems of large size of fixture, difficulty in processing alignment, structural limitation, etc.

Active Publication Date: 2013-10-23
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the fixtures of hot-simmering pipe bending and beveling machine tools currently used in China adopt the separate external tube-holding type. The fixture and the cutting host are two-part structure, and it is difficult to align the processing. The external tube-holding fixture is used. Due to structural limitations, the size of the fixture is relatively large. Large, especially when processing large-diameter hot-simmered pipes, and one fixture can only correspond to one pipe diameter specification

Method used

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  • Internal expanding type clamping mechanism of large-caliber hot bend bevelling machine
  • Internal expanding type clamping mechanism of large-caliber hot bend bevelling machine
  • Internal expanding type clamping mechanism of large-caliber hot bend bevelling machine

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Embodiment Construction

[0063] Example. Taking the processing of Φ1016mm and 90° hot-simmering pipe bending as an example, the structure of the hot-simmering pipe bending beveling machine and its internal expansion clamping mechanism is as follows Figure 1-Figure 4 shown. It mainly includes front cage 6, hydraulic cylinder 7, end plate 11, thrust plate 12, connecting rod 13, cylindrical pin 14, front tightening body 15, ejector rod 16, adjustment pad 17, expansion block 18, grease nozzle 22, Connecting disc 23, rear tension body 32, lock nut 33, axle sleeve 34, pressing bench 35.

[0064] The piston rod end of the hydraulic cylinder 7 is fixedly connected to the end plate 11 by the screw 8 on the flat washer 9 and the spring washer 10, and a thrust plate 12 is installed on the piston rod of the hydraulic cylinder 7 outside the end plate 11; the front cage 6 is set on the hydraulic cylinder After the other end of 7, the mouth of the front cage 6 is connected with the outer edge of the end plate 11 w...

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Abstract

The invention discloses an internal expanding type clamping mechanism of a large-caliber hot bend bevelling machine. The end of a piston rod of a hydraulic oil cylinder (7) is fixedly connected with an end disc (11). A thrust disc (12) is installed at the portion, outside the end disc (11), of the piston rod of the hydraulic oil cylinder (7). The other end of the hydraulic oil cylinder (7) is sleeved with a front protective cage (6), and then the outer edge of the end disc (11) is connected with a front expanding body (15) and an ejector rod (16) through the opening edge of the front protective cage (6). One end of a connection rod (13) is connected to the thrust disc (12), and the other end of the connection rod (13) is connected with the ejector rod (16). A connection disc (23) is fixedly connected with the ejector rod (16), a sub-notch at one end of the connection disc (23) is connected with the front expanding body (15), and the other end of the connection disc (23) is connected with a rear expanding body (32). The piston rod of the hydraulic oil cylinder (7) penetrates through the thrust disc (12), then is sleeved with a shaft sleeve (34) and a second thrust disc (12) and finally is locked and fixed. The internal expanding type clamping mechanism of the large-caliber hot bend bevelling machine is convenient and fast to use, relieves labor intensity of workers and improves machining efficiency.

Description

technical field [0001] The invention relates to an internally expanding clamping mechanism of a large-caliber hot-simmering pipe bending beveling machine. It relates to the processing of metal pipes and the technical field of piping systems. Background technique [0002] In recent years, with the rapid development of domestic oil and gas pipeline construction, my country has to build thousands of kilometers of long-distance oil and gas pipelines every year. Due to the constraints of the topography and other conditions of the pipeline laying section, the use of hot-simmered elbows has increased significantly, and The bending angle of the elbow is diverse, and there are only straight-side pipe sections with a length of 500mm at both ends of the elbow. Most of the fixtures of hot-simmering pipe bending and beveling machine tools currently used in China adopt the separate external tube-holding type. The fixture and the cutting host are two-part structure, and it is difficult to ...

Claims

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Application Information

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IPC IPC(8): B23Q3/00
Inventor 尹铁张锋乐天马子健田艳玲张建平马志峰张毅刘然
Owner BC P INC CHINA NAT PETROLEUM CORP
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