CN110385475A - A kind of high speed broaching cutters - Google Patents
A kind of high speed broaching cutters Download PDFInfo
- Publication number
- CN110385475A CN110385475A CN201810348149.7A CN201810348149A CN110385475A CN 110385475 A CN110385475 A CN 110385475A CN 201810348149 A CN201810348149 A CN 201810348149A CN 110385475 A CN110385475 A CN 110385475A
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- CN
- China
- Prior art keywords
- briquetting
- face
- empty avoiding
- cutter holder
- mounting groove
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- 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
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- 230000001105 regulatory effect Effects 0.000 claims description 11
- 230000001154 acute effect Effects 0.000 claims description 5
- 210000000515 tooth Anatomy 0.000 description 11
- 229910045601 alloy Inorganic materials 0.000 description 9
- 239000000956 alloy Substances 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910001339 C alloy Inorganic materials 0.000 description 1
- 229910000997 High-speed steel Inorganic materials 0.000 description 1
- 229910000954 Medium-carbon steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000010959 steel Substances 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
A kind of broaching cutters, including cutter hub, cutter holder, blade and briquetting, mounting groove is offered on the cutter hub, the briquetting is installed in the mounting groove by briquetting fastener, the cutter holder is installed in the mounting groove and is compressed by the briquetting, the blade is installed on cutter holder by blade fastener, and the mounting groove includes first side positioning face, lower positioning surface, side empty avoiding face, lower empty avoiding face and the second side-locating face.
Description
Technical field
The present invention relates to the tool of field of machining more particularly to a kind of high speed broaching cutters.
Background technique
In the prior art, broaching tool mainly has monoblock type and two kinds inserted: monoblock type broaching tool be usually use tool steel or
What high-speed steel directly processed, red hardness is inadequate, and processing efficiency is low, and that there are machining accuracies is low, service life is low and maintenance
The problems such as difficult；Inserted broaching tool is that cutter hub is done by medium carbon steel or medium carbon alloy steel, made of embedded alloy knife grain.Inserted drawing
Knife can be divided into welded hard-alloy inserted tooth broach and clip type carbide broach again.It, can be more although welded type broaching tool is durable
It is secondary to reface reuse, but in production process, it is desirable that it has good weldability, need to strictly avoid it is cracked in welding,
Its rise per tooth is realized by sharpening welding hard alloy, high to grinding required precision, and grinding process is complicated；Clip type is hard
Matter alloy cutter bit mostly uses hard alloy blocks to be ground, and is ground multiple cutters tooth on a hard alloy blocks, mostly uses spiral shell
Nail compresses, and repeats reconditioning, but the blade of this clip type carbide broach, in order to reduce grinding allowance, blank will have
Simple groove profile, and the usual volume of this blade is larger, needs multiple screws that could compress, this brings to hard alloy molding
Very big difficulty, hard alloy molding needs to control the deformation in its sintering process, while guaranteeing the position degree between hole again,
Production difficulty is big, and hard alloy blocks will be ground multiple teeth, high to grinding required precision, and production control difficulty is big.
In the prior art, the rise per tooth of the broaching cutters equipped with indexable insert tip, throw away tip, usually by broaching cutters tool apron with
The precision assembly of broach insert needs the precision of strict control broaching cutters tool apron precision and broach insert come what is realized.Broaching
Cutter tool apron designs different sizes according to different rise per tooths, in production process, to the straightness of its positioning reference plane, parallel
Degree and verticality required precision are high, and broaching tool tool apron manufacture craft requires strictly, and manufacture difficulty is big, and cutter bit needs to pass through essence
It is close to grind, it is ensured that its high-precision, high consistency and high interchangeability, accurate grinding technology control difficulty are big.
Summary of the invention
It is an object of the invention to be directed to the above-mentioned problems in the prior art, it is simple to provide a kind of structure, clamping
It is convenient, different blades can be replaced according to actual conditions such as workpiece material, cutting parts, the areas of cut, can flexible, be applicable in
The strong high speed broaching cutters of property.
In order to solve the above technical problems, the invention adopts the following technical scheme:
A kind of broaching cutters, including cutter hub, cutter holder, blade and briquetting offer mounting groove on the cutter hub, and the briquetting passes through
Briquetting fastener is installed in the mounting groove, and the cutter holder is installed in the mounting groove and is compressed by the briquetting, institute
It states blade to be installed on cutter holder by blade fastener, the mounting groove includes first side positioning face, lower positioning surface, side empty avoiding
Face, lower empty avoiding face and the second side-locating face, the first side positioning face and lower the positioning surface first side with the cutter holder respectively
And bottom surface, the side empty avoiding face, lower empty avoiding face and the second side-locating face respectively with the first briquetting side of the briquetting, pressure
Block bottom surface and the cooperation of the second briquetting side, the second side and first briquetting side cooperate, the lower empty avoiding face and pressure
There is empty avoiding gap H1 between block bottom surface, there is empty avoiding gap H2, on the bottom surface between the lower positioning surface and the bottom surface
Through-hole is offered, the through-hole is corresponded on the lower positioning surface and offers adjustment hole, the broaching cutters further includes and the knife
The regulating part of connection is pressed from both sides, the regulating part passes through the through-hole and the adjustment hole cooperates, first briquetting side and second
α at an acute angle between briquetting side.
As a further improvement of the above technical scheme:
The first side positioning face is equipped with multiple lug bosses being parallel to each other, the first side of the cutter holder be equipped with it is described
The groove of raised portion fits, the setting direction of the lug boss are vertical with the wire pulling method direction of the broaching cutters.
The sharp angle α value range is 5 °≤α≤45 °.
There is empty avoiding gap H3 between first briquetting side and the side empty avoiding face.
The value range of the H2 is 0≤H2≤0.8mm.
The regulating part is screw, and the adjustment hole is threaded hole.
The briquetting fastener is dowel screw.
Compared with the prior art, the advantages of the present invention are as follows:
(1) broaching cutters of the invention is equipped between lower empty avoiding face and briquetting bottom surface and between lower positioning surface and bottom surface and keeps away
Empty gap not only can guarantee that briquetting can effectively compress cutter holder, but also when needing to adjust the rise per tooth of broaching cutters, pass through tune
Section part can be adjusted the position of cutter holder, and then have adjusted the position of blade, that is, have adjusted the rise per tooth of broaching cutters, and
α at an acute angle between first briquetting side and the second briquetting side, i.e. briquetting are wedge structure, ensure that briquetting has enough cutter holder
Pressing force, keep the positioning of cutter holder more reliable and more stable, meet the requirement of complicated processing condition, therefore broaching cutters of the invention
Stable structure is reliable, and adjustment is convenient and fast.
(2) broaching cutters of the invention, first side positioning face and first side are male-female, and the setting side of lug boss
To vertical with the wire pulling method direction of broaching cutters, cutter holder beat can not only be prevented, moreover it is possible to play when adjusting the position of cutter holder
Effective guiding role.
Detailed description of the invention
Fig. 1 is the three-dimensional structure diagram of broaching cutters of the present invention.
Fig. 2 is the partial enlarged view of Fig. 1.
Fig. 3 is the three-dimensional structure diagram of the mounting groove of broaching cutters of the present invention.
Fig. 4 is the three-dimensional structure diagram of the briquetting of broaching cutters of the present invention.
Fig. 5 is the three-dimensional structure diagram of the cutter holder of broaching cutters of the present invention.
Each label indicates in figure:
1, cutter hub；11, mounting groove；111, first side positioning face；1111, lug boss；112, lower positioning surface；1121, adjustment hole；
113, side empty avoiding face；114, lower empty avoiding face；115, the second side-locating face；2, cutter holder；21, first side；211, groove；22, bottom
Face；221, through-hole；23, second side；3, blade；4, briquetting；41, the first briquetting side；42, briquetting bottom surface；43, the second briquetting
Side；5, briquetting fastener；6, blade fastener；7, regulating part.Specific embodiment
The present invention is described in further details below with reference to Figure of description and specific embodiment.
Fig. 1 to Fig. 5 shows a kind of embodiment of broaching cutters of the present invention, which includes cutter hub 1, cutter holder 2, knife
Piece 3 and briquetting 4 offer mounting groove 11 on cutter hub 1, and briquetting 4 is installed in mounting groove 11 by briquetting fastener 5, and cutter holder 2 fills
It is located in mounting groove 11 and is compressed by briquetting 4, blade 3 is installed on cutter holder 2 by blade fastener 6, and mounting groove 11 includes
First side positioning face 111, lower positioning surface 112, side empty avoiding face 113, lower empty avoiding face 114 and the second side-locating face 115, the first side are fixed
Plane 111 and lower positioning surface 112 cooperate with the first side 21 of cutter holder 2 and bottom surface 22 respectively, side empty avoiding face 113, lower empty avoiding face
114 and second side-locating face 115 match respectively with the first briquetting side 41 of briquetting 4, briquetting bottom surface 42 and the second briquetting side 43
It closes, second side 23 and the first briquetting side 41 cooperate, there is empty avoiding gap H1 between lower empty avoiding face 114 and briquetting bottom surface 42,
There is empty avoiding gap H2 between lower positioning surface 112 and bottom surface 22, through-hole 221 is offered on bottom surface 22, is corresponded on lower positioning surface 112
Through-hole 221 offers adjustment hole 1121, and broaching cutters further includes the regulating part 7 connecting with cutter holder 2, and regulating part 7 passes through through-hole 221
Cooperate with adjustment hole 1121, α at an acute angle between the first briquetting side 41 and the second briquetting side 43, lower empty avoiding face 114 and briquetting
It is equipped with empty avoiding gap between bottom surface 42 and between lower positioning surface 112 and bottom surface 22, not only can guarantee that briquetting 4 can be pressed effectively
Tight cutter holder 2, and when needing to adjust the rise per tooth of broaching cutters, it is only necessary to rotate regulating part 7, can position to cutter holder 2 into
Row adjustment, α at an acute angle between the first briquetting side 41 and the second briquetting side 43, i.e. briquetting 4 are wedge structure, ensure that briquetting
4 pairs of cutter holders 2 have enough pressing forces, keep the positioning to cutter holder 2 more reliable and more stable, meet the requirement of complicated processing condition, because
This broaching cutters stable structure of the invention is reliable, and adjustment rise per tooth is convenient and efficient.
In the present embodiment, first side positioning face 111 be equipped with multiple lug bosses 1111 being parallel to each other, the first of cutter holder 2
Side 21 is equipped with the groove 211 cooperated with lug boss 1111, and the setting direction of lug boss 1111 and the broaching of broaching cutters add
Work direction is vertical, and first side positioning face 111 and first side 21 are male-female, and the setting direction and broaching of lug boss 1111
The wire pulling method direction of cutter is vertical, can not only prevent 2 beat of cutter holder, moreover it is possible to play when adjusting the position of cutter holder 2 and effectively lead
To effect.
In order to guarantee that the wedge structure of briquetting 4 compresses the stability of cutter holder 2, sharp angle α value range is 5 °≤α≤45 °, this
In embodiment, α is equal to 18 °.
There is empty avoiding gap H3, as long as H1 and H3 is arranged reasonable between first briquetting side 41 and side empty avoiding face 113
In range, the value range of H2 is 0≤H2≤0.8mm, and in the present embodiment, H1 is equal to 0.1mm, and H2 is equal to 0.5mm, H3 etc.
In 0.2mm.
In the present embodiment, regulating part 7 is screw, and adjustment hole 1121 is threaded hole, when adjusting the rise per tooth of broaching cutters, only
Screw need to be rotated, is adjusted very convenient.Regulating part 7 may be alternatively provided as the opposite dowel screw of both ends thread rotary orientation, through-hole
221 are set as threaded hole.
In the present embodiment, briquetting fastener 5 is dowel screw, and the thread rotary orientation at both ends is opposite.
Although the present invention has been disclosed as a preferred embodiment, however, it is not intended to limit the invention.It is any to be familiar with ability
The technical staff in domain, without deviating from the scope of the technical scheme of the present invention, all using the technology contents pair of the disclosure above
Technical solution of the present invention makes many possible changes and modifications or equivalent example modified to equivalent change.Therefore, all
Without departing from the content of technical solution of the present invention, according to the present invention technical spirit any simple modification made to the above embodiment,
Equivalent variations and modification, all shall fall within the protection scope of the technical scheme of the invention.
Claims (1)
1. a kind of broaching cutters, including cutter hub, cutter holder, blade and briquetting, mounting groove is offered on the cutter hub, the briquetting is logical
Briquetting fastener to be crossed to be installed in the mounting groove, the cutter holder is installed in the mounting groove and is compressed by the briquetting,
The blade is installed on cutter holder by blade fastener, and the mounting groove includes first side positioning face, lower positioning surface, side empty avoiding
Face, lower empty avoiding face and the second side-locating face, the first side positioning face and lower the positioning surface first side with the cutter holder respectively
And bottom surface, the side empty avoiding face, lower empty avoiding face and the second side-locating face respectively with the first briquetting side of the briquetting, pressure
Block bottom surface and the cooperation of the second briquetting side, the second side and first briquetting side cooperate, the lower empty avoiding face and pressure
There is empty avoiding gap H1 between block bottom surface, there is empty avoiding gap H2, on the bottom surface between the lower positioning surface and the bottom surface
Through-hole is offered, the through-hole is corresponded on the lower positioning surface and offers adjustment hole, the broaching cutters further includes and the knife
The regulating part of connection is pressed from both sides, the regulating part passes through the through-hole and the adjustment hole cooperates, first briquetting side and second
α at an acute angle between briquetting side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810348149.7A CN110385475A (en) | 2018-04-18 | 2018-04-18 | A kind of high speed broaching cutters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810348149.7A CN110385475A (en) | 2018-04-18 | 2018-04-18 | A kind of high speed broaching cutters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110385475A true CN110385475A (en) | 2019-10-29 |
Family
ID=68283873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810348149.7A Pending CN110385475A (en) | 2018-04-18 | 2018-04-18 | A kind of high speed broaching cutters |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110385475A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110977019A (en) * | 2019-12-20 | 2020-04-10 | 东方电气集团东方汽轮机有限公司 | Indexable hard alloy broach for rough broaching of wheel disc groove of gas turbine |
| CN113020702A (en) * | 2021-03-04 | 2021-06-25 | 西安交通大学 | Machine presss from both sides formula broach device |
-
2018
- 2018-04-18 CN CN201810348149.7A patent/CN110385475A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110977019A (en) * | 2019-12-20 | 2020-04-10 | 东方电气集团东方汽轮机有限公司 | Indexable hard alloy broach for rough broaching of wheel disc groove of gas turbine |
| CN113020702A (en) * | 2021-03-04 | 2021-06-25 | 西安交通大学 | Machine presss from both sides formula broach device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20191029 |