Jacketed drilling bit
A technology of drill bits and casings, which is applied in the direction of drill repair, drill tool accessories, tool joints, etc., which can solve the problems of easy breakage and easy loss of drill head clips, etc., and achieve the effect of prolonging the service life and being convenient to use
Inactive Publication Date: 2010-03-17
李远强
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Problems solved by technology
[0003] Purpose of the present invention: in order to solve the problem that the tail end of the original drill bit (1) is directly in rigid contact with the clip of the drill head, it is easy to break when drilling (especially drilling small holes for thick steel plates), and the clip of the drill head is easy to wear and tear
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[0007] The present invention will be further described below in conjunction with the accompanying drawings.
[0008] The specific embodiment is to add an outer jacket elastic washer (2) at the tail end of the drill bit (1).
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The invention discloses a jacketed drilling bit, which comprises a drilling bit (1) and a jacket elastic washer (2). The jacket elastic washer is jacketed on the tail end of the drilling bit (1). Thejacketed drilling bit solves the problems that the tail end of the original drilling bit (1) is directly in rigid contact with a drilling machine head clip and is easy to fracture when drilling (particularly when drilling small holes on a thick steel plate), the drilling machine head clip is easy to wear down, and the like. The jacketed drilling bit is favorable for users and the society, is convenient to use, provides a new model for the drilling bit, and can greatly improve the service life of the drilling bit.
Description
technical field [0001] The patent of the present invention relates to a drill bit used for drilling in mechanical processing. Background technique [0002] At present, mechanical processing has penetrated into various fields of society, and the drill bits used in large quantities on drilling machines are an indispensable tool and have been widely used by the whole society. But present drill bit is direct rigidity contact with the drilling machine head clip that links to each other, easily breaks when working, and the drilling machine clip that links to each other is also easy to wear and tear. For this reason, it is necessary to explore and improve the structure of the existing drill bit, so as to reduce the loss of the drill bit and the loss of the drill head clip, which is beneficial to the user and the society. Contents of the invention [0003] Purpose of the present invention: in order to solve the problem that the tail end of the original drill bit (1) is directly i...
Claims
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IPC IPC(8): B23B51/00B23B51/12
Inventor 李远强
Owner 李远强