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Deep hole drilling bit and blade

A technology of deep hole drill bit and taper, which is applied in the direction of boring/drilling, drilling/drilling equipment, drilling repair, etc. It can solve problems such as difficulties in making eccentric taper, and achieve the effect of improving processing accuracy and processing efficiency

Inactive Publication Date: 2007-06-06
田清安
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, my country's patent ZL922 30935.3 "Taper Eccentric Machine Card Deep Hole Drill Bit and Blade" has improved the above-mentioned deep hole drill bit and has its own characteristics, but it also has shortcomings: 1. It is very difficult to make the eccentric taper on the taper eccentric hole ;2. The four guides on the outer edge of the cutter can only be used for large drills. For small and medium-sized drills, there is no place to install them because the diameter is too small.

Method used

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Embodiment Construction

[0016] Accompanying drawing is the embodiment of the present invention, and it comprises cutter body 1, outer cutter 2, inner cutter 3, guide member 5, live key 6, taper screw 7, chip removal hole 8, oil inlet gap 9 etc. Each of the two chip removal holes 8 has a dovetail blade machine card, and the dovetail blade machine card includes a radial dovetail groove 11, an axial reference plane 13, and a machine card bottom surface. The reference plane 13 is perpendicular to the bottom surface of the blade machine card and the radial dovetail groove 11 . There are two threaded holes perpendicular to it in the datum plane 13, and two adjusting screws 10 are installed inside, which are used for adjusting the size after grinding the blade. The middle part of the bottom surface of the blade machine card is provided with an eccentric threaded hole based on the blade hole, which is used to fix the blade. A knife shim 4 is placed under the blade to increase the strength of the blade and pr...

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Abstract

The present invention is one kind of deep hole drilling bit and blade on eccentric chuck. The drill chuck includes a cutter body, an outer cutter, an inner cutter, a guide piece, a movable key, a conic screw, two rows of clearance holes, an oil feeding interval, an axial datum plane, etc. The blade with conic through hole may be re-sharpened. The present invention has simple structure, convenient assembling and disassembling, adjustable cutting angle and other features.

Description

technical field [0001] The invention relates to a metal cutting tool, in particular to a taper mounted eccentric card deep hole drill and a blade for deep hole processing. Background technique [0002] The currently used deep hole drill is to weld the inner cutter and outer cutter on the cutter body by brazing for one-time use, or weld it on the handle of the cutter and install it on the cutter body. And it requires high matching precision, and more importantly, hard alloy blades are hardened and cracked after high-temperature welding; in use, the efficiency is low, easy to wear, and easy to break. The guide piece is also welded on the dovetail block, pressed on the cutter body through a tight fit, and then ground through the outer edge. During use, it is easy to wear and crush, and it is disposable. In addition, my country's patent ZL922 30935.3 "Taper Eccentric Machine Card Deep Hole Drill Bit and Blade" has improved the above-mentioned deep hole drill bit and has its own...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B51/00B23B41/02
Inventor 田清安
Owner 田清安
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