CN110524048A - A kind of On Combined Broach - Google Patents
A kind of On Combined Broach Download PDFInfo
- Publication number
- CN110524048A CN110524048A CN201910812264.XA CN201910812264A CN110524048A CN 110524048 A CN110524048 A CN 110524048A CN 201910812264 A CN201910812264 A CN 201910812264A CN 110524048 A CN110524048 A CN 110524048A
- Authority
- CN
- China
- Prior art keywords
- blade
- cutter hub
- blades
- locating slot
- keyway
- 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.)
- Granted
Links
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 14
- 229910045601 alloy Inorganic materials 0.000 abstract description 12
- 239000000956 alloy Substances 0.000 abstract description 12
- 239000000463 material Substances 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000003754 machining Methods 0.000 abstract description 3
- 230000001737 promoting effect Effects 0.000 abstract description 2
- 229910000997 High-speed steel Inorganic materials 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 241000826860 Trapezium Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D43/00—Broaching tools
- B23D43/02—Broaching tools for cutting by rectilinear movement
- B23D43/04—Broaching tools for cutting by rectilinear movement having inserted cutting edges
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling, Broaching, Filing, Reaming, And Others (AREA)
Abstract
Cutter hub and blade separate machined are reduced the difficulty of processing of hard alloy using separate structure, improve the machining accuracy of broaching tool, while reducing material cost by a kind of On Combined Broach disclosed by the invention；Secondly, set of blades is mounted on cutter hub by locating slot, and increase positioning key between blade unit cutter hub, axially and radially locating for set of blades and cutter hub is realized by locating slot and positioning key, it is also convenient for the installing and dismounting of blade and cutter hub, the configuration of the present invention is simple, manufacturing cost is low, it is easy to use, the hard alloy type face finishing broach structure engine disk-like accessory tongue-and-groove broach, blade tenon broaching in have high promotional value.
Description
Technical field
The present invention relates to aero-engine Tool Design manufacturing technology, specially a kind of On Combined Broach.
Background technique
Currently, the broaching tool that aero-engine turbine disk and the broaching of compressor disc tongue-and-groove generally use high speed steel material is added
Work, with the update of part material, the hardness of part is higher and higher, and existing high speed steel material broaching tool is in broaching part
When, quick abrasion, the surface quality and dimensional accuracy at part broaching position is increasingly difficult to meet part process requirement.
It finds after study, cemented carbide material is that broaching tool preferably replaces material, is used verifying, carbide broach
The single broaching service life is 3~4 times of similar high-speed steel broach, and overall service life is 5 times of similar high-speed steel broach or more；Mesh
Preceding carbide broach is mostly broached the thick fluting broaching tool and simple type face roughing broach faced directly, but tongue-and-groove machining area
Final type face is broached by type face finishing broach to be formed, but currently without hard alloy type face finishing broach.
Since the high difficulty of processing of Cemented Carbide Hardness is larger, because this type of face finishing broach is limited to complicated manufacturing process not yet
It is resolved, the broaching quality of Yao Tigao tongue-and-groove, promotes broaching efficiency, it is necessary to manufacture and design a kind of type face finish draw of hard alloy
Knife.
Summary of the invention
Aiming at the problem that carbide broach difficulty of processing in the prior art is big, the present invention provides a kind of assembly type and draws
Knife improves broaching quality and broaching efficiency, while also improving the service life of broaching tool.
The present invention is to be achieved through the following technical solutions:
A kind of On Combined Broach, including cutter hub, and it is mounted on the set of blades at the top of it；
Wherein, the top of cutter hub is provided with locating slot along its axial direction, and set of blades is mounted in locating slot, locating slot for pair
Set of blades carries out radial positioning；
It is additionally provided with keyway between set of blades and the contact jaw of cutter hub, is fitted with positioning key in keyway, for set of blades
Carry out axially position.
Preferably, the set of blades includes multistage blade, and multistage blade is mounted on cutter hub along the axially spaced-apart of locating slot
Top.
Preferably, positioning key is provided between every section of blade and cutter hub.
Preferably, the blade includes pedestal and the forming part that is arranged at the top of it, and the both ends of pedestal are respectively arranged with tightly
Gu portion, blade is connected in locating slot by fastening part.
Preferably, the section of the locating slot is L-type structure, and the bottom surface of locating slot is inclined-plane, and inclined-plane is upward from connecting pin
Inclination, the pedestal of blade are fitted in locating slot.
Preferably, the horizontal sextant angle on the inclined-plane is 5 °~15 °.
Preferably, the bottom of the blade is provided with blade keyway, and blade keyway is the U-type groove of bottom opening, cutter hub
Top is provided with cutter hub keyway, and cutter hub keyway is open-topped U-type groove, and the lower part of positioning key is fitted in cutter hub keyway, fixed
The top of position key is fitted in blade keyway.
Preferably, the forming part of the blade is arranged at intervals with multiple cutters tooth, and appearance bits are provided between two neighboring cutter tooth
Slot, the bottom surface of chip pocket and the angle of vertical plane are 10 °~25 °.
Preferably, the set of blades includes three sections of blades, is respectively used for rough machined first blade and the second blade, with
And the third blade for finishing.
Preferably, the cutter tooth size of first blade and the second blade increases along broaching direction by tooth, on third blade
Multiple cutters tooth size it is identical.
Compared with prior art, the invention has the following beneficial technical effects:
A kind of On Combined Broach provided by the invention, by cutter hub and blade separate machined, is reduced hard using separate structure
The difficulty of processing of matter alloy, improves the machining accuracy of broaching tool, while reducing material cost；Secondly, set of blades passes through positioning
Slot is mounted on cutter hub, and increases positioning key between set of blades and cutter hub, realizes set of blades by locating slot and positioning key
With axially and radially locating for cutter hub, it is also convenient for the installing and dismounting of blade and cutter hub.
Further, set of blades uses multiple blades, reduces the difficulty of processing of blade, while improving the precision of blade.
Further, blade is fixed in locating slot by pedestal, accurate positioning and convenient for fix.
Further, the bottom surface of locating slot is set as inclined-plane, by inclined-plane to blade carry out radial positioning, guarantee blade by
It is relatively reliable with cutter hub cooperation under power state, and ensure that the accuracy of positioning,
Further, chip pocket uses vertical belt angle between two cutters tooth, ensure that blade has enough chip spaces, simultaneously
Blade has enough intensity, while guaranteeing that blade is refaced and will not influence cutter hub intensity.
Further, roughing is carried out using the first blade and the second blade, is then finished using third blade, it is real
It now to the gradually processing of forming part, avoids primary broaching amount excessive, broaching tool is caused to damage, while improving the use longevity of broaching tool
Life, finishes type face by third blade, processing type face is made to meet design standard.
Detailed description of the invention
Fig. 1 is the perspective view of hard alloy type of the present invention face finishing broach；
Fig. 2 is the main view of hard alloy type of the present invention face finishing broach；
Fig. 3 is the left view of hard alloy type of the present invention face finishing broach；
Fig. 4 is the cross-sectional view of hard alloy type of the present invention face finishing broach locating piece；
Fig. 5 is the perspective view of cutter hub of the present invention；
Fig. 6 is the cross-sectional view of cutter hub of the present invention；
Fig. 7 is the perspective view of blade of the present invention；
Fig. 8 is the cross-sectional view of blade of the present invention；
Fig. 9 is the perspective view of locating piece of the present invention；
Figure 10 is the perspective view of 2 hard alloy type face finishing broach of the embodiment of the present invention.
In figure: 1, cutter hub；2, the first blade；3, the second blade；4, third blade；5, fastening part；6, positioning key；7, hold bits
Slot；8, positioning surface；9, cutter hub keyway；10, type face；11, blade keyway；12, locating slot.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings, described to be explanation of the invention rather than limit
It is fixed.
Refering to fig. 1-9, a kind of On Combined Broach, including cutter hub 1, and it is mounted on the set of blades at the top of it.
Wherein, the top of cutter hub 1 is provided with locating slot 12, and set of blades is axially mounted to locating slot 12 along locating slot 12
In.
Set of blades includes multiple blades, and multiple blades are sequentially arranged in locating slot 12, each blade include pedestal and
Forming part at the top of it is set, and the both ends of pedestal are respectively arranged with fastening part 5, and blade is connected in locating slot 12 by fastening part 5
In.
The quantity of blade is 2-6.
Refering to Fig. 3, the section of locating slot 12 is L-type structure, and the positioning surface 8 of 12 bottom of locating slot is inclined-plane, and inclined-plane connects certainly
End inclination upwards is connect, for blade radial positioning；The pedestal of blade is fitted in locating slot 12, and the fastening part at pedestal both ends is logical
Screw is crossed to connect with cutter hub 1.
Refering to Fig. 6, the horizontal sextant angle on inclined-plane is 5 °~15 °, preferably 10 °.
Refering to Figure 4 and 5, it is additionally provided between blade base and cutter hub 1 for the positioning key 6 to blade axially position,
Setting extends radially through the cutter hub keyway 9 of cutter hub 1 in 1 locating slot 12 of cutter hub, and in the bottom surface of blade base, setting extends radially through knife
The blade keyway 11 of piece, positioning key 6 are fitted in cutter hub keyway 9 by screw, and the top surface of positioning key 6 is higher than the bottom of locating slot 12
Face, positioning key 6 are located in blade keyway 11, and then realize the radial positioning of blade and cutter hub 1.
In order to guarantee the precision of hard alloy type face finishing broach, the positioning surface 8 of cutter hub and blade is to the bounce of benchmark
0.005-0.01mm, the gap 0.005-0.01mm of positioning key and cutter hub and blade.
Refering to Fig. 9, positioning key 6 is rectangular configuration.
Refering to Fig. 7 and 8, there are multiple cutters tooth in the forming part side of blade, the forming part in the type face 10 and part of cutter tooth
Type face is identical, is arranged vertical chip pocket 7 between two neighboring cutter tooth, and the bottom of chip pocket and the angle of vertical plane be 10 °~
25 °, knife Profile of AT has anterior angle and relief angle, and the anterior angle of cutter tooth is 12~18 °, and the relief angle of cutter tooth is 2 °~5 °.
Chip pocket 7 is preferably 20 °, and cutter tooth anterior angle is preferably 15 °, and cutter tooth relief angle is preferably 3 °.
The machined surface profile degree precision of blade is less than 0.005mm.
Chip pocket 7 can guarantee the bonding strength between insert shape and pedestal, avoid blade between 10 °~25 °
It is broken in 7 position of chip pocket, while ensuring that the depth of chip pocket 7, the scrap discharge generated during easy to process.
Referring to Fig.2, set of blades is preferably three sections of blades, including the first blade 2, the second blade 3 and third blade 4, first
Blade 2 and the second blade 3 are for roughing broaching tool piece, and third blade 4 is finishing broaching tool piece, are used for processing and forming portion
Position.
First blade 2, the second blade 3 and third blade 4 are sequentially arranged on cutter hub 1 according to the broaching direction of broaching tool,
The cutter tooth size of first blade 2 and the second blade 3 increases along broaching direction by tooth, the size of multiple cutters tooth on third blade 4
It is identical.
The length of blade is less than 100mm, in the length orientation, convenient for the linear cutter of blade chip pocket, reduces disconnected
The probability of silk improves processing efficiency, reduces processing cost, while reducing the loss of chopping, improves the precision of blade, secondly uses
Three blades are a set of blades, convenient for the installation calibrating of blade while guaranteeing precision, when the quantity of blade is excessive, are being pacified
Error is larger when dress.
In use, the first blade 2 and the second blade 3 carry out roughing to the forming part of workpiece first, due to
Each cutter tooth of first blade 2 and the second blade 3 increases by tooth, therefore is gradually processed during broaching to forming part,
It avoids primary broaching amount excessive, broaching tool is caused to damage, design in this way can also improve the service life of broaching tool, finally by third
Blade 4 is that finishing broach finishes type face, and processing type face is made to meet design standard.
Refering to fig. 10, it is the On Combined Broach of another embodiment, the two sides of the insert shape are provided with type face 10, knife
The section of the pedestal of piece is up big and down small trapezium structure, and the pedestal of 12 dovetail grooves of locating slot at the top of cutter hub 1, blade is equipped
In dovetail groove.
Cutter hub 1 and blade separate machined are reduced hard using separate structure by On Combined Broach provided by the invention
The difficulty of processing of alloy, while reducing material cost；Secondly, determining portion's setting locating slot 12, the bottom of locating slot in cutter hub 1
For inclined-plane, radial positioning is carried out to blade by inclined-plane, ensure that the accuracy of positioning, the installing and dismounting of blade and cutter hub is more
It is convenient；Then blade is used using multistage blade unit, further reduced the difficulty of processing of blade, while improving blade
Precision.
The On Combined Broach solves carbide broach profile grinding using electric processing method using segmentation structure
The problem of processing, 20 ° of chip pockets of cutter tooth solve the problems, such as that the chip removal of broaching and normal reconditioning, the tooth punching of broaching tool side ensure that cutter tooth
Intensity and rigidity.The configuration of the present invention is simple, manufacturing cost is low, easy to use, which is sending out
There is high promotional value in the broaching of motivation disk-like accessory tongue-and-groove, blade tenon broaching.
The above content is merely illustrative of the invention's technical idea, and this does not limit the scope of protection of the present invention, all to press
According to technical idea proposed by the present invention, any changes made on the basis of the technical scheme each falls within claims of the present invention
Protection scope within.
Claims (10)
1. a kind of On Combined Broach, which is characterized in that including cutter hub (1), and be mounted on the set of blades at the top of it；
Wherein, the top of cutter hub (1) is provided with locating slot (12) along its axial direction, and set of blades is mounted in locating slot (12), positioning
Slot (12) is used to carry out radial positioning to set of blades；
It is additionally provided with keyway between set of blades and the contact jaw of cutter hub (1), positioning key (6) are fitted in keyway, for blade
Group carries out axially position.
2. On Combined Broach according to claim 1, which is characterized in that the set of blades includes multistage blade, multistage blade
The top of cutter hub (1) is mounted on along the axially spaced-apart of locating slot (12).
3. On Combined Broach according to claim 2, which is characterized in that be respectively provided between every section of blade and cutter hub (1)
There are positioning key (6).
4. On Combined Broach according to claim 2, which is characterized in that the blade includes pedestal and is arranged at the top of it
Forming part, the both ends of pedestal are respectively arranged with fastening part (5), and blade is connected in locating slot (12) by fastening part (5).
5. On Combined Broach according to claim 4, which is characterized in that the section of the locating slot (12) is L-type structure, fixed
The bottom surface of position slot (12) is inclined-plane, and inclined-plane tilts upwards from connecting pin, and the pedestal of blade is fitted in locating slot (12).
6. On Combined Broach according to claim 5, which is characterized in that the horizontal sextant angle on the inclined-plane is 5 °~15 °.
7. On Combined Broach according to claim 2, which is characterized in that the bottom of the blade is provided with blade keyway
(11), blade keyway (11) is the U-type groove of bottom opening, is provided with cutter hub keyway (9) at the top of cutter hub (1), cutter hub keyway (9)
For open-topped U-type groove, the lower part of positioning key (6) is fitted in cutter hub keyway (9), and the top of positioning key (6) is fitted in knife
In piece keyway (11).
8. On Combined Broach according to claim 2, which is characterized in that the forming part of the blade is arranged at intervals with multiple knives
Tooth is provided with chip pocket (7) between two neighboring cutter tooth, and the bottom surface of chip pocket (7) and the angle of vertical plane are 10 °~25 °.
9. On Combined Broach according to claim 8, which is characterized in that the set of blades includes three sections of blades, is respectively used
In rough machined first blade (2) and the second blade (3), and for the third blade (4) of finishing.
10. On Combined Broach according to claim 9, which is characterized in that first blade (2) and the second blade (3)
Cutter tooth size increases along broaching direction by tooth, and the size of multiple cutters tooth on third blade (4) is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910812264.XA CN110524048B (en) | 2019-08-30 | 2019-08-30 | Assembled broach |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910812264.XA CN110524048B (en) | 2019-08-30 | 2019-08-30 | Assembled broach |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110524048A true CN110524048A (en) | 2019-12-03 |
| CN110524048B CN110524048B (en) | 2021-07-27 |
Family
ID=68665349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910812264.XA Active CN110524048B (en) | 2019-08-30 | 2019-08-30 | Assembled broach |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110524048B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112846383A (en) * | 2020-12-30 | 2021-05-28 | 西安交通大学 | Machine presss from both sides formula tongue-and-groove broach device |
| CN117020311A (en) * | 2023-08-16 | 2023-11-10 | 中国航发成都发动机有限公司 | Tool for repairing bottom crack of mortises of low-pressure turbine disk |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2697271A (en) * | 1954-05-12 | 1954-12-21 | Lapointe Machine Tool Co | Multiple-tooth broach |
| CN201500817U (en) * | 2009-09-18 | 2010-06-09 | 沈阳黎明航空发动机(集团)有限责任公司 | Turbine disk fir-tree tonguing and groove machine clamped broach |
| CN102717149A (en) * | 2012-06-01 | 2012-10-10 | 上海交通大学 | Adjustable finishing broach of wheel disc and tenon slot combination surface |
| CN203265777U (en) * | 2013-05-24 | 2013-11-06 | 四平博尔特工艺装备有限公司 | Christmas tree mortise broach |
| US20140255112A1 (en) * | 2013-03-08 | 2014-09-11 | United Technologies Corporation | Broach tool rake face with a tailored surface topography |
| JP2015066671A (en) * | 2013-10-01 | 2015-04-13 | 株式会社不二越 | Surface broach tool and surface broach board |
| CN106424917A (en) * | 2016-10-11 | 2017-02-22 | 恒锋工具股份有限公司 | Workpiece machining method for wheel groove finishing broach with wheel cut tooth profile |
| CN206169391U (en) * | 2016-08-30 | 2017-05-17 | 中航动力股份有限公司 | Assembled broach |
-
2019
- 2019-08-30 CN CN201910812264.XA patent/CN110524048B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2697271A (en) * | 1954-05-12 | 1954-12-21 | Lapointe Machine Tool Co | Multiple-tooth broach |
| CN201500817U (en) * | 2009-09-18 | 2010-06-09 | 沈阳黎明航空发动机(集团)有限责任公司 | Turbine disk fir-tree tonguing and groove machine clamped broach |
| CN102717149A (en) * | 2012-06-01 | 2012-10-10 | 上海交通大学 | Adjustable finishing broach of wheel disc and tenon slot combination surface |
| US20140255112A1 (en) * | 2013-03-08 | 2014-09-11 | United Technologies Corporation | Broach tool rake face with a tailored surface topography |
| CN203265777U (en) * | 2013-05-24 | 2013-11-06 | 四平博尔特工艺装备有限公司 | Christmas tree mortise broach |
| JP2015066671A (en) * | 2013-10-01 | 2015-04-13 | 株式会社不二越 | Surface broach tool and surface broach board |
| CN206169391U (en) * | 2016-08-30 | 2017-05-17 | 中航动力股份有限公司 | Assembled broach |
| CN106424917A (en) * | 2016-10-11 | 2017-02-22 | 恒锋工具股份有限公司 | Workpiece machining method for wheel groove finishing broach with wheel cut tooth profile |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112846383A (en) * | 2020-12-30 | 2021-05-28 | 西安交通大学 | Machine presss from both sides formula tongue-and-groove broach device |
| CN117020311A (en) * | 2023-08-16 | 2023-11-10 | 中国航发成都发动机有限公司 | Tool for repairing bottom crack of mortises of low-pressure turbine disk |
| CN117020311B (en) * | 2023-08-16 | 2025-09-16 | 中国航发成都发动机有限公司 | Tool for repairing bottom crack of mortises of low-pressure turbine disk |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110524048B (en) | 2021-07-27 |
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