CN112893940A - Quick change drill point positive and negative chamfer combination cutting tool - Google Patents
Quick change drill point positive and negative chamfer combination cutting tool Download PDFInfo
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- CN112893940A CN112893940A CN202110236026.6A CN202110236026A CN112893940A CN 112893940 A CN112893940 A CN 112893940A CN 202110236026 A CN202110236026 A CN 202110236026A CN 112893940 A CN112893940 A CN 112893940A
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- 238000005520 cutting process Methods 0.000 title description 6
- 230000008859 change Effects 0.000 title description 3
- 150000001875 compounds Chemical class 0.000 claims abstract description 10
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 8
- 230000013011 mating Effects 0.000 claims description 3
- 238000003754 machining Methods 0.000 abstract description 19
- 238000004519 manufacturing process Methods 0.000 abstract description 13
- 238000009434 installation Methods 0.000 abstract description 2
- 239000000956 alloy Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 229910045601 alloy Inorganic materials 0.000 description 7
- 238000005553 drilling Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/08—Drills combined with tool parts or tools for performing additional working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Abstract
A quick-change drill point positive and negative chamfering compound tool relates to the technical field of machining tools and comprises a tool base body, a drill bit mounting structure, a positive and negative chamfering blade and a blade positioning structure, wherein the drill bit mounting structure comprises a threaded connector and a threaded locking hole, the threaded connector is in threaded connection with the threaded locking hole, a vertical sliding hole and a transverse sliding hole are formed in the tool base body, the positive and negative chamfering blade is arranged in the vertical sliding hole in a sliding manner, the blade positioning structure comprises a limiting ejector rod, an elastic telescopic part, a tightening post and an adjusting bolt, the limiting ejector rod, the elastic telescopic part and the tightening post are sequentially arranged in the transverse sliding hole, one end of the limiting ejector rod is in limiting clamping connection with the positive and negative chamfering blade, the adjusting bolt is in threaded installation in the transverse sliding hole, and the adjusting bolt is in abutting connection with the tightening post, greatly reduces the manufacturing and processing cost, and reduces the manufacturing cost while guaranteeing high-quality and high-efficiency processing.
Description
Technical Field
The invention relates to the technical field of machining tools, in particular to a quick-change drill point forward and reverse chamfering compound tool.
Background
Hole machining is one of the most common material removal methods, and the number of machining processes is 20-40% of the total machining process, depending on the industry. In the flexible tool machining center, the drilling process takes about 30-35% of the total machining time. The hole machining plays an important role in the aeronautical manufacturing industry, and tens of millions of holes are machined on an assembly line of an airplane every year, so that the proportion of the machining cost of a hole machining cutter is high. In the hole machining tool, an integral hard alloy drill bit can be adopted, the quality precision of the hard alloy drill bit machining hole is high, the machining efficiency is also high, but the hard alloy drill bit is too high in cost due to the fact that the hard alloy material is expensive, the grinding manufacturing cost is high, the toughness of the hard alloy material is poor, and the hard alloy drill bit is easy to break, so that the application range in the hole machining field is greatly influenced, and the hard alloy drill bit is difficult to be applied in a large range in the market. In addition, in the hole machining needing the positive and negative chamfers, most of the prior art still needs a two-cutter two-sequence machining mode, inlet chamfer machining and outlet chamfer machining are respectively realized, the operation is complex, and the working efficiency is influenced.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a quick-change drill point forward and reverse chamfering compound tool, which adopts a quick-change drill bit and a quick-change forward and reverse chamfering blade, greatly reduces the manufacturing and processing cost, ensures high-quality and high-efficiency processing, has lower manufacturing cost and higher cost performance, and has the following specific scheme:
a quick-change drill point forward and reverse chamfering compound tool comprises a tool base body, a drill bit mounting structure, a forward and reverse chamfering blade and a blade positioning structure;
the drill bit mounting structure comprises a threaded connector coaxially connected with the drill bit and a thread locking hole formed in the cutter base body, and the threaded connector is in threaded connection with the thread locking hole;
vertical sliding holes are radially arranged on the cutter base body, transverse sliding holes are axially arranged on the cutter base body, the transverse sliding holes are communicated with the vertical sliding holes, the positive and negative chamfering blades slide in the vertical sliding holes, the blade positioning structure comprises a limiting ejector rod, an elastic expansion piece, a support tight column and an adjusting bolt, the limiting ejector rod, the elastic expansion piece and the support tight column are sequentially in the transverse sliding holes and are mutually abutted, one end of the limiting ejector rod is connected with the limiting clamping connection of the positive and negative chamfering blades, the adjusting bolt is threadedly installed in the transverse sliding holes, and the adjusting bolt is abutted against the support tight column.
Furthermore, the drill bit is made of hard alloy, and the cutter base body is made of alloy steel.
Furthermore, the front and back chamfer blades are made of hard alloy.
Furthermore, the chamfering angle range of the front and back chamfering blade is 10-75 degrees, and the extension length range of the front and back chamfering blade relative to the cutter base body is 0-2 mm.
Furthermore, a positioning groove is formed in one side, facing the abutting column, of the front and back chamfering blade, and the shape of the positioning groove is matched with the end part of the limiting ejector rod.
Furthermore, the side surface of the cutter base body, which is in contact with the drill, is a matching surface, the diameter of the matching surface is d1, the diameter of the drill is d2, and the range of d2 is d1 to (d1+1) mm.
Compared with the prior art, the invention has the following beneficial effects:
(1) cutter during operation, the drill bit processes of driling, in cutting process, the drill bit gets into in the work piece gradually, positive and negative chamfer blade is under elastic force and the cutting force effect of elastic expansion piece, when contacting the entry edge of machined hole, realize forward chamfer, when forward chamfer reaches preset size, positive and negative chamfer blade contracts to the hole that slides completely, be in the inside of cutter base member, positive and negative chamfer blade roof pressure spacing ejector pin simultaneously, the two chucking each other, closely cooperate, and spacing ejector pin compression elastic expansion piece, the drill bit continues to process, when positive and negative chamfer blade passes the export of machined hole, positive and negative chamfer blade pops out under elastic force, positive and negative chamfer blade reverse processing, realize reverse chamfer. In addition, the drill bit and the cutter base body are detachably and fixedly connected, different drill bits can be replaced to realize processing of holes with multiple sizes, and meanwhile, the front and back chamfering blade is integrated, so that the multifunctional process capable of drilling and front and back chamfering is realized. In conclusion, the quick-change drill bit and the quick-change forward and reverse chamfering blade are adopted, so that the manufacturing and processing cost is greatly reduced, the high-quality and high-efficiency processing is guaranteed, the manufacturing cost is lower, and the cost performance is higher;
(2) the drill bit adopts whole carbide material to make, and the cutter base member adopts the alloy steel that toughness is higher to make, integrates the positive and negative chamfer blade that carbide made simultaneously on the cutter base member, and the price of alloy steel material is less than carbide's price far away, and manufacturing cost is lower, whole manufacturing cost greatly reduced, and the drill bit possesses carbide drill bit high accuracy high efficiency high temperature resistant wear resistant advantage, solves the shortcoming of whole carbide drill bit easy rupture again, is favorable to marketing to use on a large scale.
Drawings
FIG. 1 is an overall schematic diagram of an embodiment of the present invention;
FIG. 2 is a general schematic view of a positive and negative chamfer insert of the present invention;
3 FIG. 3 3 3 is 3 a 3 schematic 3 view 3 of 3 the 3 forward 3 and 3 reverse 3 chamfer 3 insert 3 of 3 FIG. 32 3 taken 3 along 3 line 3 A 3- 3 A 3 in 3 a 3 positional 3 relationship 3 with 3 the 3 tool 3 base 3. 3
Reference numerals: 1. a tool base; 2. a drill bit; 3. a drill bit mounting structure; 31. a threaded connector; 32. a thread locking hole; 4. a vertical sliding hole; 5. a transverse sliding hole; 6. a blade positioning structure; 61. a limit ejector rod; 62. an elastic extensible member; 63. tightly abutting against the column; 64. adjusting the bolt; 7. a positive and negative chamfering blade; 71. and (6) positioning a groove.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited to these examples.
Combine fig. 1 to 3, a positive and negative chamfer combined tool of quick change drill point, including cutter base member 1, drill bit 2, still include drill bit mounting structure 3, positive and negative chamfer blade 7 and blade location structure 6, drill bit 2 passes through drill bit mounting structure 3 and installs the one end at cutter base member 1, positive and negative chamfer blade 7 inlays to be established on cutter base member 1, and positive and negative chamfer blade 7 can be relative cutter base member 1 reciprocating motion, blade location structure 6 is used for spacing positive and negative chamfer blade 7, when cutter during operation, hole machining is realized to drill bit 2, positive and negative chamfer blade 7 realizes carrying out positive and negative chamfer to the machined hole simultaneously.
Drill bit mounting structure 3 includes threaded connection head 31 with 2 coaxial coupling of drill bit and sets up the screw locking hole 32 on cutter base member 1, and the diameter of threaded connection head 31 is less than the diameter of drill bit 2, sets up with 2 an organic whole of drill bit, and threaded connection head 31 and screw locking hole 32 threaded connection for drill bit 2 can dismantle fixed connection with cutter base member 1. The side surface of the tool base body 1 contacting the drill 2 is a matching surface, the diameter of the matching surface is d1, the diameter of the drill 2 is d2, the range of d2 is d1 to (d1+1) mm, and the drill 2 is tightly attached to the matching surface when being screwed into the screw locking hole 32. So set up, same cutter base member 1 can install than the big 0 ~ 1 mm's of mating surface diameter drill bit 2 for a plurality of not unidimensional drill bits 2 can be installed to cutter base member 1, and economic cost performance improves.
Under initial condition, positive and negative chamfer blade 7 stretches out relative cutter base member 1, and the length range that stretches out of positive and negative chamfer blade 7 relative cutter base member 1 is 0 ~ 2mm, and the elasticity of spring can be controlled through adjusting bolt 64's locking distance to control positive and negative chamfer blade 7's length of stretching out, spring force is big more, and the length that positive and negative chamfer blade 7 stretches out is big more, and the size that can chamfer is big more. In this embodiment, the chamfer angle range of the forward and reverse chamfer blades 7 is 10 ° to 75 °.
In this embodiment, the one end of adjusting bolt 64 that sets up outwards is laminated between cutter base member 1 and is set up, guarantees holistic aesthetic measure. The middle part of the positive and negative chamfering blade 7 is arranged in a hollow way, and guide inclined planes are formed on two sides of the part for chamfering.
Cutter during operation, drill bit 2 processes drilling, in cutting process, drill bit 2 gets into the work piece gradually, positive and negative chamfer blade 7 is under the elastic action and the cutting force effect of elastic expansion piece 62, when contacting the entry edge of machined hole, realize forward chamfer, when forward chamfer reaches preset size, positive and negative chamfer blade 7 contracts to the hole that slides completely, be in the inside of cutter base member 1, positive and negative chamfer blade 7 roof pressure spacing ejector pin 61 simultaneously, the two chucking each other, closely cooperate, and spacing ejector pin 61 compression elastic expansion piece 62, drill bit 2 continues to process, when positive and negative chamfer blade 7 passes the export in machined hole, positive and negative chamfer blade 7 pops out under the elastic action, positive and negative chamfer blade 7 reverse processing, realize reverse chamfer. In addition, the drill bit 2 is detachably and fixedly connected with the cutter base body 1, different drill bits 2 can be replaced to process holes with multiple sizes, and meanwhile, the front and back chamfering blade 7 is integrated to realize a multifunctional process capable of drilling and performing front and back chamfering. In conclusion, the quick-change drill bit 2 and the quick-change forward and reverse chamfering blade 7 are adopted, so that the manufacturing and processing cost is greatly reduced, high-quality and high-efficiency processing is guaranteed, the manufacturing cost is lower, and the cost performance is higher.
In this embodiment, drill bit 2 adopts carbide to make, cutter base member 1 adopts alloy steel to make, positive and negative chamfer blade 7 adopts carbide to make, the price of alloy steel material is less than carbide far away, the manufacturing cost is lower, moreover, the toughness of alloy steel is higher than carbide, the shortcoming of whole carbide drill bit easy rupture has been solved, in addition, because need trompil and a plurality of parts of installation in the cutter base member 1 in this application, it is more suitable to adopt alloy steel to make cutter base member 1, even machining error appears, also can reduce cost relatively.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (6)
1. A quick-change drill point positive and negative chamfering compound cutter comprises a cutter base body (1) and a drill bit (2), and is characterized by further comprising a drill bit mounting structure (3), positive and negative chamfering blades (7) and a blade positioning structure (6);
the drill bit mounting structure (3) comprises a threaded connector (31) coaxially connected with the drill bit (2) and a threaded locking hole (32) formed in the cutter base body (1), and the threaded connector (31) is in threaded connection with the threaded locking hole (32);
the cutter base body (1) is provided with a vertical sliding hole (4) along the radial direction, the cutter base body (1) is provided with a transverse sliding hole (5) along the axial direction, the transverse sliding hole (5) is communicated with the vertical sliding hole (4), the positive and negative chamfer blades (7) are arranged in the vertical sliding hole (4) in a sliding way, the blade positioning structure (6) comprises a limiting ejector rod (61), an elastic expansion piece (62), a tightening column (63) and an adjusting bolt (64), the limiting ejector rod (61), the elastic telescopic piece (62) and the abutting column (63) are sequentially arranged in the transverse sliding hole (5) and are mutually abutted, one end of the limiting ejector rod (61) is in limiting clamping connection with the positive and negative chamfering blade (7), the adjusting bolt (64) is installed on the transverse sliding hole (5) in a threaded manner, and the adjusting bolt (64) is abutted with the abutting column (63).
2. The quick-change drill point forward-reverse chamfering compound tool as claimed in claim 1, characterized in that the drill bit (2) is made of cemented carbide and the tool base body (1) is made of alloy steel.
3. The quick-change drill tip forward and reverse chamfering compound tool as claimed in claim 2, wherein the forward and reverse chamfering blade (7) is made of cemented carbide.
4. The quick-change drill point forward and reverse chamfering compound tool as claimed in claim 1, wherein the chamfer angle range of the forward and reverse chamfering blade (7) is 10-75 degrees, and the protrusion length of the forward and reverse chamfering blade (7) relative to the tool base body (1) is 0-2 mm.
5. The quick-change drill point forward and reverse chamfering compound tool as claimed in claim 4, wherein a positioning groove (71) is formed on one side of the forward and reverse chamfering blade (7) facing the tightening cylinder (63), and the shape of the positioning groove (71) is matched with the end of the limiting ejector rod (61).
6. The quick-change drill point positive and negative chamfering compound tool as claimed in claim 1, characterized in that the side of the tool base body (1) in contact with the drill bit (2) is provided as a mating surface, the diameter of the mating surface is provided as d1, the diameter of the drill bit (2) is provided as d2, and the d2 ranges from d1 to (d1+1) mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110236026.6A CN112893940A (en) | 2021-03-03 | 2021-03-03 | Quick change drill point positive and negative chamfer combination cutting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110236026.6A CN112893940A (en) | 2021-03-03 | 2021-03-03 | Quick change drill point positive and negative chamfer combination cutting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112893940A true CN112893940A (en) | 2021-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110236026.6A Pending CN112893940A (en) | 2021-03-03 | 2021-03-03 | Quick change drill point positive and negative chamfer combination cutting tool |
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| CN (1) | CN112893940A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060140732A1 (en) * | 2004-12-27 | 2006-06-29 | Iscar Ltd. | Deburring tool and cutting insert therefor |
| US20100024220A1 (en) * | 2008-05-28 | 2010-02-04 | Ulf Heule | Deburring Tool For Deburring Drilled Holes |
| DE102009005275A1 (en) * | 2009-01-20 | 2010-07-22 | Heule, Ulf | Cutting knife for cutting tools with break notch |
| CN202317174U (en) * | 2011-11-04 | 2012-07-11 | 郑州市钻石精密制造有限公司 | Combined cutter for machining holes of automobile engine cylinder |
| CN203817469U (en) * | 2014-05-07 | 2014-09-10 | 天合富奥汽车安全系统（长春）有限公司 | Compound tool for drilling and chamfering of obverse face and reverse face |
| CN106064248A (en) * | 2015-04-24 | 2016-11-02 | 好优利工具有限公司 | Boring chamfering tool kit |
| CN106903352A (en) * | 2017-04-25 | 2017-06-30 | 四川天虎工具有限责任公司 | A kind of Double-side rounding drilling tool |
| CN207402128U (en) * | 2017-11-21 | 2018-05-25 | 绵阳市绵工工具有限公司 | A kind of two-way chamfering tool |
-
2021
- 2021-03-03 CN CN202110236026.6A patent/CN112893940A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060140732A1 (en) * | 2004-12-27 | 2006-06-29 | Iscar Ltd. | Deburring tool and cutting insert therefor |
| US20100024220A1 (en) * | 2008-05-28 | 2010-02-04 | Ulf Heule | Deburring Tool For Deburring Drilled Holes |
| DE102009005275A1 (en) * | 2009-01-20 | 2010-07-22 | Heule, Ulf | Cutting knife for cutting tools with break notch |
| CN202317174U (en) * | 2011-11-04 | 2012-07-11 | 郑州市钻石精密制造有限公司 | Combined cutter for machining holes of automobile engine cylinder |
| CN203817469U (en) * | 2014-05-07 | 2014-09-10 | 天合富奥汽车安全系统（长春）有限公司 | Compound tool for drilling and chamfering of obverse face and reverse face |
| CN106064248A (en) * | 2015-04-24 | 2016-11-02 | 好优利工具有限公司 | Boring chamfering tool kit |
| CN106903352A (en) * | 2017-04-25 | 2017-06-30 | 四川天虎工具有限责任公司 | A kind of Double-side rounding drilling tool |
| CN207402128U (en) * | 2017-11-21 | 2018-05-25 | 绵阳市绵工工具有限公司 | A kind of two-way chamfering tool |
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Application publication date: 20210604 |
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| RJ01 | Rejection of invention patent application after publication |