Conicity mounting type eccentric cam machine deep hole drilling bit and blade
A technology of deep hole drill bit and jig card, applied in boring/drilling, drilling/drilling equipment, repairing and other directions, can solve problems such as difficulty in making eccentric taper, and achieve the effect of improving processing accuracy and processing efficiency
Inactive Publication Date: 2009-08-26
田清安
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Problems solved by technology
In addition, although my country's patent ZL92230935.3 "Taper Eccentric Machine Card Deep Hole Drill Bit and Blade" has improved the above-mentioned deep hole drill bit and has its characteristics, it also has shortcomings: 1. The eccentric taper on the taper eccentric hole is very small. Difficulty; 2. The four guide pieces on the outer edge of the cutter can only be used for large drills. For small and medium drills, there is no place to install and use because the diameter is too small.
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[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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The invention relates to a taper mounted eccentric machine card deep hole drill bit and a blade. Including cutter body(1), outer cutter(2), inner cutter(3), guide piece(5), live key(6), taper screw(7), chip removal hole(8), oil inlet clearance(9) , the two chip holes (8) each have a radial dovetail groove (11), an axial reference surface (13) and a dovetail blade machine card composed of the bottom surface of the machine card; there are four guide parts on the outer edge of the cutter body (1). Card, the guide piece (5) is installed in the dovetail groove with a taper screw machine card, the side R of the guide piece (5) is fastened by the taper screw (7) and forms a combined machine card at the bottom of the groove; the blade is regrindable, with The blade with a tapered through hole, the blade machine card is a taper-mounted eccentric machine card; the inner knife (3) can also be used on a small-diameter cutter body to process small-diameter holes; it has a simple structure, easy assembly and disassembly, and avoids hardening and cracks caused by welding. ; Automatic adjustment of machine clamping force, replaceable blades and guides; adjustable cutting angle to improve processing accuracy and efficiency.
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, although my country's patent ZL92230935.3 "Taper Eccentric Machine Card Deep Hole Drill Bit and Blade" has improved the above-mentioned deep hole drill bit and has...
Claims
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IPC IPC(8): B23B51/00B23B41/02
Inventor 田清安
Owner 田清安