CN102581353A - Designing and processing method of enveloped counter bit for titanium alloy - Google Patents
Designing and processing method of enveloped counter bit for titanium alloy Download PDFInfo
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- CN102581353A CN102581353A CN2012100778447A CN201210077844A CN102581353A CN 102581353 A CN102581353 A CN 102581353A CN 2012100778447 A CN2012100778447 A CN 2012100778447A CN 201210077844 A CN201210077844 A CN 201210077844A CN 102581353 A CN102581353 A CN 102581353A
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Abstract
The invention creates and provides a processing method of an enveloped counter bit for titanium alloy. The processing method comprises the following steps: (1) lathing, turning and molding, respectively turning an excircle and an inner hole of an open enveloped counter bit according to drawing requirements and turning 2 degrees of inner conical degree and 0.4-0.5 of allowance in a 1:50 taper hole, turning the remainder into the size, (2) preparing a special welding clamp for a blade, (3) outside grinding, roughly grinding the excircle of the special welding clamp of the blade according to the size of the inner hole of the open enveloped counter bit, (4) inside grinding, precisely grinding the 1:50 taper hole into required size, (5) milling, preparing a milling slot on the special welding clamp of the blade according to specification of the blade, (6) fixing the special welding clamp of the blade on the open enveloped counter bit, (7) welding the blade, and (8) taking down the special welding clamp of the blade. According to the designing and processing method of the enveloped counter bit for titanium alloy, the problem that the blade of the enveloped counter bit for titanium alloy cannot be fixed in the welding process and occurred adhesion phenomenon are effectively solved, the product quality is ensured and the production cost is reduced.
Description
Technical field
The present invention relates to design and the processing method of a kind of titanium alloy, be used for the processing in the hole on the titanium alloy skin part with the covering counterbit.
Background technology
Along with the high speed development of aerospace field, all require omnibearing raising at aspects such as the material of aircraft manufacturing and mechanical performances, each link that is applied to airplane component processing that especially titanium alloy material is general.
Titanium alloy material is a kind of new structural material, and it has superior performance indications, obtains increasingly extensive application at industrial departments such as Aeronautics and Astronautics, chemical industry, shipbuildings.Titanium alloy is that the covering counterbit is used in the hole that is used on the machining titanium alloy skin part with the covering counterbit, is applied in aviation field widely, mainly contains the covering counterbit of two kinds of forms; A kind of is the whole covering counterbit of high-speed steel, and a kind of is the covering counterbit of welding alloy blade, and the former processing method is fairly simple; But production cost is than higher, for production in enormous quantities, with causing very big waste; Latter's difficulty of processing is bigger; The bad assurance of product quality that processing method is produced, but the production cost reduction of degree greatly, so be applied in the processing in the hole on the skin part widely.
Summary of the invention
The purpose of the invention provides design and the processing method of a kind of titanium alloy with the covering counterbit; Efficiently solve the adhesion phenomenon of titanium alloy with the covering counterbit difficult problem that blade can't be fixed in welding process and generation; Guarantee product quality, and reduced production cost.
The technical scheme of the invention: titanium alloy is used the covering counterbit, comprises blade, cutter hub, knife bar and alignment pin, and cutter hub is fixed on the knife bar through alignment pin, and blade and cutter hub flexibly connect.
Said blade and cutter hub welding.
Described titanium alloy may further comprise the steps with the processing method of covering counterbit:
1) turner: the car moulding, the respectively cylindrical and the hole, lining of car opening covering counterbit by drawing, and car goes out 2 ° of internal tapers, and 1:50 taper hole made allowance 0.4~0.5, all the other cars are to size;
2) the welding special fixture of making blade;
3) outer mill: the cylindrical of roughly grinding the welding special fixture of blade according to hole dimension in the opening covering counterbit;
4) mill in: correct grinding 1:50 taper hole is to requiring size.
5) miller:, on the welding special fixture of blade, join the milling cutter groove according to the specification of blade;
6) the welding special fixture with blade is fixed on the opening covering counterbit;
7) welding blade;
8) take off the welding special fixture of blade.
The welding special fixture of said blade becomes " protruding " font, adopts the 1Cr18Ni9Ti material, and the consistent size of its small end size and taper hole holds in size and the opening covering counterbit hole dimension consistent greatly.
The anterior angle γ of said blade is 0 °, and relief angle α is 12 °, and cutter tilt β is 0 °, and groove angle θ is 60 °, and end R is 1.5, and oblique angle δ is 10 °, and entad angle ε is 2 °.
In the processing of the cutter hub of covering counterbit, the actual size in hole, lining is usually than the big 0.5mm of theoretical size car in lining hole; In the processing of the cutter hub afterbody taper hole of covering counterbit, need make special-purpose reamer and feeler gauge according to the tapering size value and process and measure.
The cutter hub of said covering counterbit is provided with through hole.
The beneficial effect of the invention:
1) the welding special fixture of this blade can well solve the difficult problem that blade can't be fixed in welding process; These anchor clamps adopt the 1Cr18Ni9Ti material; The thermal conductivity of this material is low; Even blade welds, still can well dismantle at the high temperature action bottom knife, and when welding blade, not stick together; Therefore can realize that same cutter hub and knife bar use repeatedly, also greatly reduce production cost when guaranteeing product quality.
2) the anterior angle γ of said blade is 0 °, and relief angle α is 12 °, and cutter tilt β is 0 °, and groove angle θ is 60 °, and having end R simultaneously is 1.5, is convenient to scrap fallaway in use like this; Oblique angle δ is 10 °, and purpose is to make stable cutting in working angles; Entad angle ε is 2 °, be simultaneously in anti-tapering, can reduce friction in use like this, reduce the heat that produces in the working angles, prolong the service life of cutter.
3) in the processing of the cutter hub of covering counterbit, the actual size in hole, lining is usually than the big 0.5mm of theoretical size car in lining hole; In the processing of the cutter hub afterbody taper hole of covering counterbit, need make special-purpose reamer and feeler gauge according to the tapering size value and process and measure, adopt this process to satisfy the requirement of production better.
4) on the cutter hub of covering counterbit, be provided with through hole, purpose be for alleviate the weight of this covering counterbit, play alleviate in the effect in hole.
Description of drawings
Fig. 1 is the structural representation of the invention titanium alloy with the covering counterbit.
Fig. 2 is the structural relation sketch map of blade and cutter hub.
Fig. 3 is the side view of Fig. 1.
Fig. 4 is the A-A sectional views among Fig. 2.
Fig. 5 is the structural representation of the welding special fixture of blade.
The specific embodiment
As shown in Figure 1, titanium alloy is used the covering counterbit, comprises blade 2, cutter hub 1, knife bar 3 and alignment pin, and cutter hub 1 is fixed on the knife bar 3 through alignment pin, and blade 2 flexibly connects with cutter hub 1.
Shown in Fig. 2 to 4, said blade 2 and cutter hub 1 welding.
Described titanium alloy may further comprise the steps with the processing method of covering counterbit:
1) turner: the car moulding, the respectively cylindrical and the hole, lining of car opening covering counterbit by drawing, and car goes out 2 ° of internal tapers, and 1:50 taper hole made allowance 0.4~0.5, all the other cars are to size;
2) the welding special fixture of making blade 2;
3) outer mill: the cylindrical of roughly grinding the welding special fixture of blade 2 according to hole dimension in the opening covering counterbit;
4) mill in: correct grinding 1:50 taper hole is to requiring size;
5) miller:, on the welding special fixture of blade 2, join the milling cutter groove according to the specification of blade 2;
6) the welding special fixture with blade 2 is fixed on the opening covering counterbit;
7) welding blade 2;
8) take off the welding special fixture of blade 2.
As shown in Figure 5, the welding special fixture of said blade 2 becomes " protruding " font, adopts the 1Cr18Ni9Ti material, and the consistent size of its small end size and taper hole holds in size and the opening covering counterbit hole dimension consistent greatly.
The anterior angle γ of said blade 2 is 0 °, and relief angle α is 12 °, and cutter tilt β is 0 °, and groove angle θ is 60 °, and end R is 1.5, and oblique angle δ is 10 °, and entad angle ε is 2 °.
In the processing of the cutter hub 1 of covering counterbit, the actual size in hole, lining is usually than the big 0.5mm of theoretical size car in lining hole; In the processing of the cutter hub afterbody taper hole of covering counterbit, need make special-purpose reamer and feeler gauge according to the tapering size value and process and measure.
The cutter hub 1 of said covering counterbit is provided with through hole.
Claims (7)
1. titanium alloy is used the covering counterbit, comprises blade (2), cutter hub (1), knife bar (3) and alignment pin, and cutter hub (1) is fixed on the knife bar (3) through alignment pin, it is characterized in that: blade (2) flexibly connects with cutter hub (1).
2. titanium alloy as claimed in claim 1 is used the covering counterbit, it is characterized in that: said blade (2) and cutter hub (1) welding.
3. titanium alloy as claimed in claim 2 is characterized in that with the processing method of covering counterbit, may further comprise the steps:
1) turner: the car moulding, the respectively cylindrical and the hole, lining of car opening covering counterbit by drawing, and car goes out 2 ° of internal tapers, and 1:50 taper hole made allowance 0.4~0.5, all the other cars are to size;
2) the welding special fixture of making blade (2);
3) outer mill: the cylindrical of roughly grinding the welding special fixture of blade (2) according to hole dimension in the opening covering counterbit;
4) mill in: correct grinding 1:50 taper hole is to requiring size;
5) miller:, on the welding special fixture of blade (2), join the milling cutter groove according to the specification of blade (2);
6) the welding special fixture with blade (2) is fixed on the opening covering counterbit;
7) welding blade (2);
8) take off the welding special fixture of blade (2).
4. titanium alloy as claimed in claim 3 is with the processing method of covering counterbit; It is characterized in that: the welding special fixture of said blade (2) becomes " protruding " font; Adopt the 1Cr18Ni9Ti material; The consistent size of its small end size and taper hole holds in size and the opening covering counterbit hole dimension consistent greatly.
5. titanium alloy as claimed in claim 4 is characterized in that with the processing method of covering counterbit: the anterior angle γ of said blade (2) is 0 °, and relief angle α is 12 °; Cutter tilt β is 0 °, and groove angle θ is 60 °, and end R is 1.5; Oblique angle δ is 10 °, and entad angle ε is 2 °.
6. titanium alloy as claimed in claim 5 is characterized in that with the processing method of covering counterbit: in the processing of the cutter hub (1) of covering counterbit, the actual size in hole, lining is usually than the big 0.5mm of theoretical size car in lining hole; In the processing of the cutter hub afterbody taper hole of covering counterbit, need make special-purpose reamer and feeler gauge according to the tapering size value and process and measure.
7. titanium alloy as claimed in claim 6 is characterized in that with the processing method of covering counterbit: the cutter hub of said covering counterbit (1) is provided with through hole.
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CN201210077844.7A CN102581353B (en) | 2012-03-22 | 2012-03-22 | Designing and processing method of enveloped counter bit for titanium alloy |
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CN201210077844.7A CN102581353B (en) | 2012-03-22 | 2012-03-22 | Designing and processing method of enveloped counter bit for titanium alloy |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102825439A (en) * | 2012-09-13 | 2012-12-19 | 沈阳飞机工业(集团)有限公司 | Machining method for profile countersink drill |
CN103433815A (en) * | 2013-09-17 | 2013-12-11 | 沈阳飞机工业(集团)有限公司 | Method for processing bolt head combined dimple drill |
CN103753163A (en) * | 2013-12-31 | 2014-04-30 | 梧州市三禾添佰利五金加工有限公司 | Woodworking cutting tool machining method |
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SU560685A1 (en) * | 1975-09-30 | 1977-06-05 | Челябинский Ордена Ленина И Ордена Трудового Красного Знамени Станкостроительный Завод Им.Серго Орджоникидзе | A method of manufacturing a tool for machining holes, such as a countersink, with internal channels from a tubular billet |
CN2040826U (en) * | 1988-12-14 | 1989-07-12 | 江忠明 | Hard alloy hollow drill |
KR20050009446A (en) * | 2003-07-16 | 2005-01-25 | 한국항공우주산업 주식회사 | Countersink Forming Cutter |
CN101134255A (en) * | 2006-08-29 | 2008-03-05 | 中信重型机械公司 | Hard alloy precision working rack type cutter and processing technique |
US20090250139A1 (en) * | 2006-04-13 | 2009-10-08 | Hiroshi Nakamura | Plate-like cutting tool and fixing jig |
CN201423463Y (en) * | 2009-06-01 | 2010-03-17 | 沈阳飞机工业(集团)有限公司 | Titanium alloy covering countersink drill |
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2012
- 2012-03-22 CN CN201210077844.7A patent/CN102581353B/en active Active
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SU560685A1 (en) * | 1975-09-30 | 1977-06-05 | Челябинский Ордена Ленина И Ордена Трудового Красного Знамени Станкостроительный Завод Им.Серго Орджоникидзе | A method of manufacturing a tool for machining holes, such as a countersink, with internal channels from a tubular billet |
CN2040826U (en) * | 1988-12-14 | 1989-07-12 | 江忠明 | Hard alloy hollow drill |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102825439A (en) * | 2012-09-13 | 2012-12-19 | 沈阳飞机工业(集团)有限公司 | Machining method for profile countersink drill |
CN102825439B (en) * | 2012-09-13 | 2015-01-21 | 沈阳飞机工业(集团)有限公司 | Machining method for profile countersink drill |
CN103433815A (en) * | 2013-09-17 | 2013-12-11 | 沈阳飞机工业(集团)有限公司 | Method for processing bolt head combined dimple drill |
CN103433815B (en) * | 2013-09-17 | 2015-10-14 | 沈阳飞机工业(集团)有限公司 | The processing method of bolt head combination socket drill |
CN103753163A (en) * | 2013-12-31 | 2014-04-30 | 梧州市三禾添佰利五金加工有限公司 | Woodworking cutting tool machining method |
CN103753163B (en) * | 2013-12-31 | 2016-04-27 | 梧州市三禾添佰利五金加工有限公司 | A kind of processing method of wood cutter |
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