CN102380810A - Drilling device - Google Patents
Drilling device Download PDFInfo
- Publication number
- CN102380810A CN102380810A CN2011103680465A CN201110368046A CN102380810A CN 102380810 A CN102380810 A CN 102380810A CN 2011103680465 A CN2011103680465 A CN 2011103680465A CN 201110368046 A CN201110368046 A CN 201110368046A CN 102380810 A CN102380810 A CN 102380810A
- Authority
- CN
- China
- Prior art keywords
- bearing
- cavity sleeve
- hollow cavity
- spring
- unit according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005553 drilling Methods 0.000 title abstract description 43
- 238000005520 cutting process Methods 0.000 claims abstract description 33
- 238000005296 abrasive Methods 0.000 claims abstract description 12
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 8
- 239000010432 diamond Substances 0.000 claims abstract description 8
- 230000037250 Clearance Effects 0.000 claims description 11
- 230000035512 clearance Effects 0.000 claims description 11
- 229910052582 BN Inorganic materials 0.000 claims description 6
- PZNSFCLAULLKQX-UHFFFAOYSA-N N#B Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 6
- 239000002131 composite material Substances 0.000 abstract description 18
- 238000000034 method Methods 0.000 abstract description 7
- 239000002245 particle Substances 0.000 abstract description 4
- 238000005476 soldering Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 8
- 238000003754 machining Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- ORILYTVJVMAKLC-UHFFFAOYSA-N Adamantane Chemical compound C1C(C2)CC3CC1CC2C3 ORILYTVJVMAKLC-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229910000997 High-speed steel Inorganic materials 0.000 description 1
- 229910001573 adamantine Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical class [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 210000001699 lower leg Anatomy 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Abstract
The invention provides a drilling device and relates to the technical fields of realizing self centering and automatic chip removal of a jacking drilling tool in the process of drilling composite material. Two ends of a hollow inner cavity sleeve are in threaded connection with a cutting part and a drill holder respectively; the cutting part is connected with the periphery of one end of the hollow inner cavity sleeve through first screw threads; the drill holder is connected with the periphery of the other end of the hollow inner cavity sleeve through second screw threads; one end, far away from the hollow inner cavity sleeve, of the drill holder is connected with a knife handle through a top cover; a centering tip is arranged in the inner cavity of the cutting part; one end of the centering tip is in interference fit with the inner wall of the hollow inner cavity sleeve through a bearing; and a limit piece is arranged on one side, far away from the centering tip, of the bearing. The invention aims to provide a drilling tool for realizing self centering and automatic chip removal of the jacking drilling tool, so that the jacking drilling tool can achieve capacities of self centering and automatic chip removal. Artificial diamond abrasive particles are welded on the surface of the cutting part by a diamond soldering process and the drilling mode is replaced by the grinding mode.
Description
Technical field
The present invention relates to a kind of be used for realizing jacking drilling the instrument self-centering and the technical field of chip removal automatically when carrying out the composite Drilling Operations.
Background technology
Composite is meant the material that is combined by different way by two or more different material, and it can bring into play the advantage of various materials, overcomes the defective of homogenous material, enlarges the range of application of material.Because characteristics such as that composite has is in light weight, intensity is high, machine-shaping is convenient, excellent spring, resistance to chemical attack and good weatherability; Progressively replace timber and metal alloy; Be widely used in fields such as Aero-Space, automobile, electric, building, body-building apparatus, obtained develop rapidly in recent years especially.
Along with developing rapidly and increasingly extensive application of composite, machining becomes requisite important step of composite element manufacture process.Meanwhile, the secondary mechanical processing problems of composite also emerges thereupon.The processing capacity of composite material work piece is in fact considerably less, and itself is shaped basically.But the assembling of composite material structural member be unable to do without the connection of structure, and mechanical connection is still main method of attachment.Therefore, must experience accurate drilling manufacturing procedure in the composite application process satisfying connection request, and the secondary mechanical processing capacity is very big, for example, U.S. F-22 opportunity of combat only wing composite just needs 14000 PRECISION HOLE.Characteristics such as hardness height, intensity are big because composite has, poor thermal conductivity, anisotropy, interlaminar strength are low; In drilling processing; Layering, sur-face peeling, burr, resin are melted, fiber collapses problem such as scarce and perplexing all the time and make on-the-spotly, are a kind of very difficult high-quality material processed.And the high rigidity of carbon fiber makes that tool wear is fast, cutter life short; Carbon fibre reinforced composite plate like common high speed steel twist drill drilling 3 millimeters thick; Every sharpening once can only be processed about 5 holes, once can process about 50 holes with the whole spiral bit sharpening of carbide alloy.
For solving crudy and the cutter life problem in the composite, experts and scholars have carried out a large amount of theoretical and experimental studies both at home and abroad, generally believe to adopt diamond jacking drilling instrument can obtain good crudy and long life tools.But when using jacking drilling instrument to carry out Drilling Operations, there is so long-term insurmountable problem; Promptly because jacking drilling instrument does not have the apex point part of drilling tools such as picture fluted drill, straight-flute drill; Thereby, Drilling Operations can't accomplish as drilling tools such as fluted drill, straight-flute drill, to feel relieved when beginning with apex point; Have a strong impact on the positional precision in hole, finally cause the decline of part assembly quality.Another problem that is present in the practical application of jacking drilling instrument is; Jacking drilling instrument is processed cylindric smear metal that the processing of composite through hole particularly back forms and is separated the back with workpiece elastic recovery takes place carrying out through hole; It is blocked in is difficult in the jacking drilling instrument inner chamber take out; Must adopt manual mode to force to take out smear metal, cause working (machining) efficiency low, can't be used for field machining.
Summary of the invention
A kind of drilling tool that the object of the present invention is to provide a kind of method of jacking drilling instrument self-centering and chip removal and realize this method; Use the drilling tool of this method can solve above-mentioned two problems, make jacking drilling instrument obtain the ability of centering and the ability of automatic chip removal.Simultaneously; In order to obtain the more excellent hole crudy of composite; The cutter manufacture craft of a kind of " generation cutting with mill " is cited, and promptly through diamond brazing technology the diamond abrasive particle is welded on the surface of cutting tip, substitutes the Drilling Operations mode with the grinding mode.
The two ends of hollow cavity sleeve of the present invention be threaded respectively cutting tip, drillstock, cutting tip through first be threaded in hollow cavity sleeve one end periphery, drillstock through second be threaded in the hollow cavity sleeve other end periphery; Drillstock connects handle of a knife away from an end of hollow cavity sleeve through top cover; The cavity arrangements centering of cutting tip is top, and the top end of feeling relieved is provided with locating part away from the top side of centering through the inwall interference fit of bearing and hollow cavity sleeve on the bearing.
Bearing of the present invention comprises clutch shaft bearing, second bearing, and second bearing is arranged in the side near locating part.
Cutting part of the present invention comprises tip, top bottom, top middle part, top top; The two ends of top bottom connect tip, top middle part respectively; The other end at top middle part connects top top, and top upper bearing is connected the inwall of hollow cavity sleeve, and cutting tip is stretched out in the tip.
Locating part of the present invention comprises first spring shim, spring, second spring shim, and first spring shim contacts with bearing, and spring is between first spring shim, second spring shim, and second spring shim contacts with top cover.
Second spring shim of the present invention is a staged, comprises path part, large-diameter portion branch, and path partly stretches in the spring, and large-diameter portion divides and hollow cavity sleeve matched in clearance.
The inwall matched in clearance of spring of the present invention and hollow cavity sleeve.
Evenly arrange super-hard abrasive near the top end of centering on the cutting tip body of the present invention.
Super-hard abrasive of the present invention is a kind of in diamond, cubic boron nitride, the polycrystalline cubic boron nitride.
At least one through hole is set on the top cover of the present invention.
The present invention is used for feeling relieved and the drilling tool of chip removal is automatically accomplished the centering action through the top locating hole by material surface of centering that end face stretches out.Simultaneously, the top certain flexible stroke that has of feeling relieved makes jacking drilling instrument obtain the function of automatic chip removal whereby.
Jacking drilling instrument of the present invention can separate with centring means as the working portion of actual participation cutting, i.e. jacking drilling instrument is connected with centring means through threaded engagement.Jacking drilling instrument is when accomplishing cutter life or jacking drilling instrument and must scrap, and jacking drilling instrument can be disassembled and install easily, can not influence the use of whole drilling tool.
The present invention connects the through hole that leaves two manual chip removals on the top cover of shank portion, promptly at instrument owing to when some emergency case can't accomplish automatic chip removal, can reach the effect that the cylinder smear metal is discharged through manual chip-removal hole extruding entire tool inner chamber.
Description of drawings
Fig. 1 is inner chamber partial sectional view of this drilling tool;
Fig. 2 provides a kind of structure of centering top 8 to describe;
The practical implementation method
Below in conjunction with accompanying drawing technical scheme of the present invention is elaborated:
As shown in Figure 1; The two ends of hollow cavity sleeve 2 of the present invention be threaded respectively cutting tip 1, drillstock 3; Cutting tip 1 is connected the periphery of hollow cavity sleeve 2 one ends through first screw thread 4, and drillstock 3 is connected the periphery of hollow cavity sleeve 2 other ends through second screw thread 5; Drillstock 3 connects handle of a knife 6 away from an end of hollow cavity sleeve 2 through top cover 7; It is top 8 that the cavity arrangements of cutting tip 1 is felt relieved, and top 8 the end of feeling relieved is through the inwall interference fit of bearing with hollow cavity sleeve 2, away from top 8 the side of feeling relieved locating part is set on the bearing.
As shown in Figure 1, bearing of the present invention comprises that clutch shaft bearing 13, second bearing, 14, the second bearings 14 are arranged in the side near locating part.
Like Fig. 1, shown in Figure 2; Cutting part 1 of the present invention comprises tip 9, top bottom 10, top middle part 11, top top 12; The two ends of top bottom 10 connect tip 9, top middle part 11 respectively; The other end at top middle part 11 connects top top 12, and top top 12 bearings are connected the inwall of hollow cavity sleeve 2, and cutting tip 1 is stretched out in tip 9.
As shown in Figure 1; Locating part of the present invention comprises first spring shim 15, spring 16, second spring shim 17; First spring shim 15 contacts with bearing, and spring 16 is between first spring shim 15, second spring shim 17, and second spring shim 17 contacts with top cover 7.
As shown in Figure 1, second spring shim 17 of the present invention is a staged, comprises that path part 18, large-diameter portion divide 19, and path part 18 stretches in the spring 16, large-diameter portion divide 19 with hollow cavity sleeve 2 matched in clearance.
As shown in Figure 1, the inwall matched in clearance of spring 16 of the present invention and hollow cavity sleeve 2.
Evenly arrange super-hard abrasive near the end of centering top 8 on cutting tip 1 body of the present invention.
Super-hard abrasive of the present invention is a kind of in diamond, cubic boron nitride, the polycrystalline cubic boron nitride.
Drilling tool cutting tip 1 of the present invention adopts the version of jacking drilling instrument.Hollow cavity sleeve 2 provides the installing space of tool interior, retrains the radially free degree of inner bodies such as second bearing 14, spring 16 simultaneously.Drillstock 3 provides a handle of a knife 6 of instrument to be used for the instrument clamping, provides the restricted internal part vertically to the top cover 7 of the thrust effect of having moved.Cutting tip 1, hollow cavity sleeve 2 connect through first screw thread 4, and hollow cavity sleeve 2, drillstock 3 connect through second screw thread 5, cutting tip 1, hollow cavity sleeve 2, the drillstock 3 common outer shape that constitute this drilling tool.Feel relieved top 8 be installed in drilling tool inner chamber, guarantee coaxial relation with cutting tip 1.The present invention feels relieved and guarantees certain clearance between the inwall of top 8 top bottom 10 and cutting tip 1.Cutting tip 1 is stretched out in feel relieved top 8 tip 9.Top top 12 and clutch shaft bearing 13, second bearing, 14 interference fit, the diameter at top middle part 11 is bigger slightly than top top 12, and bearing is carried out axial location.Clutch shaft bearing 13, second bearing 14 and sleeve 2 inwall matched in clearance, the end of hollow cavity sleeve 2 is arranged locating part.First spring shim 15 is installed in second bearing, 14 upper surfaces, and internal diameter is greater than the bearing inner race external diameter, with hollow cavity sleeve 2 inwall matched in clearance.Spring 16 is installed between first spring shim 15 and second spring shim 17.Second spring shim 17 is designed to staged, and path part 18 stretches into spring 16 inner chambers and limits its radial-play, large-diameter portion divide 19 with hollow cavity sleeve 2 matched in clearance.The upper surface 20 of second spring shim 15 contacts with top cover 7 bottom surfaces.Leave certain clearance between spring 16 and hollow cavity sleeve 2 inwalls, prevent that the axial compression of spring is unrestricted.
Drilling tool of the present invention adopts the tubular structure form, has certain wall thickness.Super-hard abrasive is arranged on cutting tip 1 body end near centering top 8 in an orderly manner, and the utilization soldering processes are welded on the surface with abrasive particle.Wherein, super-hard abrasive plays a part to remove material in the Drilling Operations process, and side abrasive particle reconditioning is the machining hole inwall.Adopt the device of this structure can improve the cutter life of composite hole machining tool by adamantine wearability; Utilize the hole crudy of the processing mode raising composite of " cutting " to grind generation.
Claims (9)
1. drill unit; The two ends that it is characterized in that hollow cavity sleeve (2) be threaded respectively cutting tip (1), drillstock (3); Cutting tip (1) is connected the periphery of hollow cavity sleeve (2) one ends through first screw thread (4), and drillstock (3) is connected the periphery of hollow cavity sleeve (2) other end through second screw thread (5); Drillstock (3) connects handle of a knife (6) away from an end of hollow cavity sleeve (2) through top cover (7); The cavity arrangements centering top (8) of cutting tip (1), an end of feel relieved top (8) are through the inwall interference fit of bearing and hollow cavity sleeve (2), and the side away from centering top (8) on the bearing is provided with locating part.
2. drill unit according to claim 1 is characterized in that above-mentioned bearing comprises clutch shaft bearing (13), second bearing (14), and second bearing (14) is arranged in the side near locating part.
3. drill unit according to claim 1 and 2; It is characterized in that above-mentioned cutting part (1) comprises tip (9), top bottom (10), top middle part (11), top top (12); The two ends of top bottom (10) connect tip (9), top middle part (11) respectively; The other end at top middle part (11) connects top top (12), and top top (12) bearing is connected the inwall of hollow cavity sleeve (2), and cutting tip (1) is stretched out in tip (9).
4. drill unit according to claim 1 and 2; It is characterized in that above-mentioned locating part comprises first spring shim (15), spring (16), second spring shim (17); First spring shim (15) contacts with bearing; Spring (16) is positioned between first spring shim (15), second spring shim (17), and second spring shim (17) contacts with top cover (7).
5. drill unit according to claim 4; It is characterized in that above-mentioned second spring shim (17) is staged; Comprise path part (18), large-diameter portion branch (19); Path part (18) stretches in the spring (16), large-diameter portion branch (19) and hollow cavity sleeve (2) matched in clearance.
6. drill unit according to claim 5 is characterized in that the inwall matched in clearance of above-mentioned spring (16) and hollow cavity sleeve (2).
7. drill unit according to claim 1 is characterized in that evenly arranging super-hard abrasive near the end of centering top (8) on cutting tip (1) body.
8. drill unit according to claim 7 is characterized in that super-hard abrasive is a kind of in diamond, cubic boron nitride, the polycrystalline cubic boron nitride.
9. drill unit according to claim 1 is characterized in that on the top cover (7) at least one through hole being set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103680465A CN102380810A (en) | 2011-11-18 | 2011-11-18 | Drilling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103680465A CN102380810A (en) | 2011-11-18 | 2011-11-18 | Drilling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102380810A true CN102380810A (en) | 2012-03-21 |
Family
ID=45820863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103680465A Pending CN102380810A (en) | 2011-11-18 | 2011-11-18 | Drilling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102380810A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103586500A (en) * | 2013-11-04 | 2014-02-19 | 中航成飞民用飞机有限责任公司 | Hole making method for honeycomb interlayer composite materials |
| CN103707128A (en) * | 2012-10-01 | 2014-04-09 | 大隈株式会社 | Thread cutting machine |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1365660A (en) * | 1918-03-08 | 1921-01-18 | Collier Arthur | Bit and like boring-tool |
| DE383221C (en) * | 1923-10-11 | Werner Paul | Disc cutter | |
| US1705049A (en) * | 1926-02-18 | 1929-03-12 | Harry W Howland | Boring instrument |
| US4012161A (en) * | 1974-05-15 | 1977-03-15 | Shultz William E | Rotary cutting device |
| CN2033719U (en) * | 1988-09-07 | 1989-03-08 | 河北胜利客车厂 | Jacking drill |
| FR2668405A1 (en) * | 1990-10-31 | 1992-04-30 | Thieblemont Georges | Cutting-out assembly including an ejection device |
| CN2198071Y (en) * | 1994-05-11 | 1995-05-24 | 王树梅 | Movable centre of miller |
| CN2241596Y (en) * | 1995-12-22 | 1996-12-04 | 李大弟 | Saw-type trepanning drill |
| DE202010000542U1 (en) * | 2010-04-09 | 2010-06-10 | Kaiser Gmbh & Co. Kommanditgesellschaft | Tool for generating a blind hole-like recess |
| CN102211217A (en) * | 2011-06-06 | 2011-10-12 | 大连理工大学 | Trepanning tool with self-air cooling and chip removing functions |
| CN202357001U (en) * | 2011-11-18 | 2012-08-01 | 南京航空航天大学 | Drilling device |
-
2011
- 2011-11-18 CN CN2011103680465A patent/CN102380810A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE383221C (en) * | 1923-10-11 | Werner Paul | Disc cutter | |
| US1365660A (en) * | 1918-03-08 | 1921-01-18 | Collier Arthur | Bit and like boring-tool |
| US1705049A (en) * | 1926-02-18 | 1929-03-12 | Harry W Howland | Boring instrument |
| US4012161A (en) * | 1974-05-15 | 1977-03-15 | Shultz William E | Rotary cutting device |
| CN2033719U (en) * | 1988-09-07 | 1989-03-08 | 河北胜利客车厂 | Jacking drill |
| FR2668405A1 (en) * | 1990-10-31 | 1992-04-30 | Thieblemont Georges | Cutting-out assembly including an ejection device |
| CN2198071Y (en) * | 1994-05-11 | 1995-05-24 | 王树梅 | Movable centre of miller |
| CN2241596Y (en) * | 1995-12-22 | 1996-12-04 | 李大弟 | Saw-type trepanning drill |
| DE202010000542U1 (en) * | 2010-04-09 | 2010-06-10 | Kaiser Gmbh & Co. Kommanditgesellschaft | Tool for generating a blind hole-like recess |
| CN102211217A (en) * | 2011-06-06 | 2011-10-12 | 大连理工大学 | Trepanning tool with self-air cooling and chip removing functions |
| CN202357001U (en) * | 2011-11-18 | 2012-08-01 | 南京航空航天大学 | Drilling device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103707128A (en) * | 2012-10-01 | 2014-04-09 | 大隈株式会社 | Thread cutting machine |
| CN103707128B (en) * | 2012-10-01 | 2017-04-12 | 大隈株式会社 | thread cutting machine |
| CN103586500A (en) * | 2013-11-04 | 2014-02-19 | 中航成飞民用飞机有限责任公司 | Hole making method for honeycomb interlayer composite materials |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102649179B (en) | Tool holder and with a tool holder and the tooling system of a cutter | |
| CN110091177A (en) | A kind of BTA deep hole drilling rolling composite processing machine tool | |
| CN201728375U (en) | Movable thimble special for sleeve | |
| CN202963646U (en) | Novel honing reamer | |
| CN109531078A (en) | A kind of processing method of phenolic aldehyde adhesive plaster divergence type solid cage | |
| CN201405102Y (en) | Inner cooling indexable cutter blade drill head | |
| CN203438012U (en) | Novel horizontal machining center with composite gun-drill function | |
| CN102380810A (en) | Drilling device | |
| CN202357001U (en) | Drilling device | |
| CN100411785C (en) | Ring-cutting knife | |
| CN102658468B (en) | Method, device and drill for machining glass reinforced plastic sleeve | |
| CN206382607U (en) | A kind of diamond screw-on cutter | |
| CN211101618U (en) | Lathe convenient to central siphon class parts machining | |
| CN110842258B (en) | Method for adjusting cutting diameter of drill bit | |
| CN209969658U (en) | Improved drilling device | |
| CN207127298U (en) | Cold cylindrical drill in automatic blanking | |
| CN102430933B (en) | Gun drill clamping tool for processing oblique oil hole of large-displacement general power machine crankshaft | |
| CN207656972U (en) | A kind of mobile phone glass drill bit | |
| CN203197326U (en) | Half-moon drill bit for deep hole | |
| CN210412719U (en) | Device for processing PBX composite material containing hard foreign matters | |
| CN201677213U (en) | Digital-control silicon chip grinding bed | |
| CN216729726U (en) | Drill bit for centering drilling | |
| CN108637595B (en) | Method for machining hollow shaft of coal mining machine and grinding center for grinding hollow shaft | |
| CN201389703Y (en) | Grinding processing device for upper threads of soft rubber roller | |
| CN213945149U (en) | Electroplating reaming honing rod |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120321 |