Expanding drill for deep hole machining
A reaming drilling and deep hole technology, which is applied in metal processing equipment, drilling/drilling equipment, drilling repair, etc., can solve the problems of small diameter, poor rigidity, and large length of drill pipes, and improve processing speed , improve the processing quality, improve the effect of speed
Inactive Publication Date: 2016-10-05
TAIZHOU HUADONG NUMERICAL CONTROL ENGINE BED
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Problems solved by technology
The reamer is limited by the hole diameter, the diameter of the drill pipe is small and the length is large, so the rigidity and strength of the drill pipe are poor
Method used
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[0013] See figure 1 with figure 2 , the present invention has a body 1; the body 1 includes a drill bit 11, a drill rod 12 and a Morse taper shank 13; Stretch out from one end of guide rod 2, Morse taper shank 13 stretches out from the other end of guide rod 2; The diameter of described guide rod 2 is less than the diameter of drill bit 11; The outer wall of described guide rod 2 is provided with more than two The chute is evenly distributed along the circumference of its axis, and the chute extends radially along the axis of the guide rod; a guide assembly 3 is provided in each chute; the guide assembly 3 includes a guide block 31 and a return spring 32 The guide block 31 is a ball, the diameter of the mouth of the chute is less than the diameter of the ball, the guide block 31 is slidably arranged in the chute and a return spring 32 is arranged between the guide block 31 and the bottom of the chute; The part out of the chute is a free end and the end face of the free end ...
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The invention relates to an expanding drill for deep hole machining. The expanding drill include a body; the body includes a drill bit, a drill rod, and a Mohs taper shank; a guide rod sleeves the drill rod, and the drill rod is rotatably arranged in the guide rod; the drill bit stretches out from one end of the guide rod, and the Mohs taper shank stretches out from the other end of the guide rod; the diameter of the guide rod is less than that of the drill bit; the outer wall of the guide rod is provided with more than two slide grooves which are circumferentially and evenly distributed along an axis of the guide rod, and the slide grooves extend in the radial direction of the guide rod; each slide groove is internally provided with a guide assembly; each guide assembly includes a guide block and a reset spring, the guide block is slidingly arranged in the slide groove, and the reset spring is arranged between the guide block and the bottom of the slide groove; and a free end of each guide block stretches out of the slide groove, and the end surface of the free end is higher than the outer diameter of the drill bit. The expanding drill facilitates deep hole machining and can ensure the machining straightness.
Description
technical field [0001] The invention relates to a hole processing tool, in particular to a reaming drill for deep hole processing. Background technique [0002] Deep hole processing is often encountered in machining, and one of the commonly used tools for deep hole processing is the reamer. The reamer is limited by the hole diameter, the diameter of the drill pipe is small, and the length is large, so the rigidity of the drill pipe is poor and the strength is low. It is easy to generate vibration, corrugation and taper during processing, which will affect the straightness and surface roughness of deep holes. At the same time, due to the certain depth of the processed hole, it is difficult to determine whether the reaming drill is in place. Contents of the invention [0003] The object of the present invention is to provide a deep hole reaming drill which is convenient for deep hole processing and ensures straightness of processing. [0004] The technical solution for re...
Claims
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IPC IPC(8): B23B51/00B23B51/06
Inventor 丛茂华
Owner TAIZHOU HUADONG NUMERICAL CONTROL ENGINE BED