A method for removing flash or burrs at the initial section of a workpiece thread by a numerically controlled lathe

A technology of CNC lathes and starting sections, which is applied in manufacturing tools, metal processing equipment, thread trimmers, etc., can solve the problem of increasing the risk of accidental damage to the thread surface. Participation and other issues to achieve the effect of improving accuracy and efficiency, eliminating replacement, and reducing the amount of removal

Active Publication Date: 2021-05-28
BEIBU GULF UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Grinding by hand with a file has the disadvantages of low efficiency, requiring manual participation, increasing the risk of accidental damage to the thread surface and additional labor costs
In addition, both documents focus on the beginning and end ends of non-tapered straight threads, which are not suitable for flash or burr removal of tapered threads

Method used

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  • A method for removing flash or burrs at the initial section of a workpiece thread by a numerically controlled lathe
  • A method for removing flash or burrs at the initial section of a workpiece thread by a numerically controlled lathe
  • A method for removing flash or burrs at the initial section of a workpiece thread by a numerically controlled lathe

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Embodiment Construction

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and / or" includes any and all combinations of one or more of the ass...

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Abstract

The invention provides a method for removing burrs or burrs at the beginning of a thread of a workpiece by a numerically controlled lathe, comprising the following steps: after turning a thread on a workpiece, returning a turning tool to the starting point of the final cutting stroke of the thread; The amount of burr removal; thread interpolation is performed according to the original cutting parameters of the thread, the thread is turned and the turning tool is positioned to the actual starting point of the thread; the chamfering direction along the starting section of the thread is based on the maximum lead of the sharp-edged helix. Equal lead thread interpolation for turning burrs or burrs. The method for removing the burrs or burrs at the beginning of the thread of the workpiece by the CNC lathe can accurately remove the foundations of the burrs or the burrs, and does not need to change the tool, thus saving the trouble of changing the tool.

Description

technical field [0001] The invention relates to the technical field of numerical control machining of threads, in particular to a method for removing flash or burrs at the initial section of a workpiece thread by a numerical control lathe. Background technique [0002] The oil pipe thread specification stipulates that the small end (starting end) of the thread should have a chamfer of 60 or 65 degrees. After the turning of the forming tool is completed, the incomplete section within the range of about 0 to 1.5 times the lead of the initial chamfering section of the thread will produce flying. Edges or burrs, flashes or burrs are located on the distal side of the thread profile (proximal side of the alveolar). The existence of flashes or burrs not only affects the normal detection of thread parameters, but also affects the sealing performance of threads during use, increases the risk of thread surface damage, and even leads to thread connection failure. [0003] The existing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23G9/00B23G1/44
CPCB23G1/44B23G9/009
Inventor 刘建群孙凤芝刘珈利何永玲黎泉石南辉贾广攀
Owner BEIBU GULF UNIV
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