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Coupling automatic pre-screwing machine

A pre-tightening and automatic technology, applied in the direction of metal processing equipment, metal processing, manufacturing tools, etc., can solve problems that affect the strength and sealing of threaded connections, squeeze out oil, and stick buttons, etc., to save labor costs and improve production The effect of work efficiency and convenient maintenance

Active Publication Date: 2017-06-30
青岛精研自动化设计有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current standard sets strict torque requirements for the make-up of oil and casing of different specifications and steel grades. If the make-up torque is too large, the thread of the oil and casing will be squeezed, causing sticking, which will affect the strength of the threaded connection. and tightness; insufficient buckle torque will lead to loose buckle, tripping, poor sealing, etc.

Method used

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  • Coupling automatic pre-screwing machine
  • Coupling automatic pre-screwing machine
  • Coupling automatic pre-screwing machine

Examples

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Embodiment Construction

[0027] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0028] Examples, such as figure 1 , 2 , 3, 4, 5, 6, 7, 8, and 9, a coupling automatic pre-twisting machine includes a frame body 4, and the top of the frame body 4 is sequentially provided with floating back clamps from one side to the other side 1. Coupling support frame 2, main tong 3; after the oil pipe to be screwed reaches the pre-tightening station, the floating back tong 1 clamps one end of the oil pipe, and the cylinder of the floating back tong centering mechanism moves to center the oil pipe at the predetermined position , the coupling to be twisted is lifted by the coupling support frame 2, concentric with the main tongs main shaft, the main tongs 3 quickly reach the coupling clamping position under the push of the oil cylinder 39, the clamping oil cylinder moves, the main tongs 3 clamp the coupling, and connect The hoop support frame 2 falls, an...

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Abstract

The invention belongs to the technical field of petroleum machinery equipment, particularly relates to a coupling automatic pre-screwing machine. The coupling automatic pre-screwing machine provided by the invention completes the screwing by pre-screwing a coupling mechanically and automatically. In order to solve the above technical problems, an adopted technical scheme is that the coupling automatic pre-screwing machine comprises a frame body, wherein a floating back-pincher, a coupling support frame and a main pincher are arranged on the top of the frame body from one side to the other side in sequence; the floating back-pincher clamps one end of an oil pipe tightly, a to-be-screwed coupling is elevated by the coupling support frame, and is concentric with a spindle of the main pincher; and the main pincher clamps the coupling, the coupling support frame falls, the main pincher drives the coupling to rotate and axially advance at a certain speed, and after the contact, the coupling and an oil pipe are screwed connected with each other.

Description

technical field [0001] The invention belongs to the technical field of petroleum machinery and equipment, in particular to an automatic coupling pre-twisting machine. Background technique [0002] With the new construction of a large number of oil and casing production plants and the technical transformation and expansion of the original production plants, the localization process of oil and casing has made great progress. In the production process of oil and casing, the coupling making and breaking equipment is the key equipment after the threading machine. The quality of the coupling making and breaking directly affects the connection performance and sealing performance of the oil and casing. The current standard sets strict torque requirements for the make-up of oil and casing of different specifications and steel grades. If the make-up torque is too large, the thread of the oil and casing will be squeezed, causing sticking, which will affect the strength of the threade...

Claims

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Application Information

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IPC IPC(8): B23P19/06
CPCB23P19/061
Inventor 于宁魏绪贞李光袁晓峰于甜甜
Owner 青岛精研自动化设计有限公司
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