CN207386676U - It is a kind of to process drill mill tool of the both ends with chamfered bore - Google Patents
It is a kind of to process drill mill tool of the both ends with chamfered bore Download PDFInfo
- Publication number
- CN207386676U CN207386676U CN201720584927.3U CN201720584927U CN207386676U CN 207386676 U CN207386676 U CN 207386676U CN 201720584927 U CN201720584927 U CN 201720584927U CN 207386676 U CN207386676 U CN 207386676U
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- main cutting
- knife
- cutting edge
- edge
- face
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Abstract
The utility model, which provides a kind of drill mill of the both ends with chamfered bore of processing, to be had,The processing of aperture size and two chamfers can once be completed,Solve the problems, such as that current device to hole and both ends chamfer machining need separately to carry out,Including the first cutting portion,Second cutting portion,3rd cutting portion,Drill core,Empty knife portion,Straight flute and handle of a knife,First cutting portion includes the first main cutting edge,Knife face after knife face and two after one,In first main cutting edge and another group two after backlash is equipped between knife face,Backlash lower part connects straight flute,It is connected between two first main cutting edges by chisel edge,Second cutting portion and the 3rd cutting parts are in the two side in empty knife portion,Second cutting portion includes knife face after the second main cutting edge and pair two,3rd cutting portion includes knife face after the 3rd main cutting edge and pair three,First main cutting edge and the 3rd main cutting edge are connected by the be located at straight flute side edge edge first secondary land.
Description
Technical field
The utility model is related to hole machined technical fields, and in particular to a kind of to process drill mill tool of the both ends with chamfered bore.
Background technology
Traditional hole machined and chamfering process is scattered progress, using drill bit when processing hole, during chamfering using rose reamer or
It is counterbit.
And there are the parts (such as Fig. 1) of chamfering requirement for hole both ends, it is also necessary to reinstall, position, process.Not only
Cause Tools Requirement quantity big, and the position degree of hole and two chamfers, concentricity decline, and also affect workpiece assembling, sealing
Deng quality, this does not allow in the higher auto parts and components of required precision, space flight military industry.
Utility model content
The utility model provide it is a kind of process both ends with chamfered bore drill mill tool, can once complete aperture size and
The processing of two chamfers solves the problems, such as that current device to hole and both ends chamfer machining need separately to carry out.
The technical solution of the utility model is：Including the first cutting portion, the second cutting portion, the 3rd cutting portion, drill core, sky
Knife portion, straight flute and handle of a knife, first cutting portion have two groups, arranged on the same end face of cutter, respectively including the first main cutting edge,
Knife face after knife face and two after one, in the first main cutting edge and another group of any one group of the first cutting portion two after set between knife face
There is backlash, the backlash lower part connects straight flute, connected between two first main cutting edges by chisel edge, and the sky knife portion is arranged on knife
Have side wall, be groove structure, second cutting portion and the 3rd cutting portion are located at the two side in empty knife portion, the second cutting portion respectively
To chamfering in workpieces processing, the 3rd cutting tip includes the second main cutting edge to chamfering under workpieces processing, the second cutting portion
With knife face after pair two, the 3rd cutting portion includes knife face after the 3rd main cutting edge and pair three, first main cutting edge and the 3rd master
Cutting edge is connected by the be located at straight flute side edge edge first secondary land.
As the preferred of said program, the first cutting portion described in two groups is in center centered on the center of circle of end face in cutter end face
Symmetrical, the backlash bottom is equipped with fillet, and radius of corner is 0.5~0.6mm.
As the preferred of said program, second main cutting edge and the 3rd main cutting edge are just opposite, and the second main cutting
Sword and the 3rd main cutting edge are tilted with sky knife portion bottom in 45° angle to empty knife portion outside, knife after knife face and secondary three after described secondary two
Face is located at the second main cutting edge and the 3rd main cutting edge one side respectively.
As the preferred of said program, the first main cutting edge maximum gauge be d1, the second main cutting edge maximum gauge
For d2, chamfering width is c1 on workpiece to be processed, then meets d2 ＞ d1+2 × c1, the 3rd main cutting edge maximum gauge is d3, empty
The a diameter of d4 in knife portion, lower chamfering width are c2, then meet 2 × c2+1 of d3-d4 ＞, the axial length in the sky knife portion is L1, is treated
Workpieces processing inner hole axial length is L2, then meets L1 ＞ L2+5, a diameter of q of drill core then meets q=0.3d1.
The beneficial effects of the utility model are：
1st, above-mentioned drill mill tool is effectively simplified existing hole machined process, makes aperture size and two chamfers in time processing
It is molded in process, improves position degree, the concentricity in hole and two chamfers, and reduce cutter usage quantity, reduce dress
Folder, the time of tool changing, processing quality is improved, production efficiency can be greatly improved.Also it is both ends band chamfering hole machined from now on
New thinking is provided.
2nd, cutter row of progress by the way of straight flute cuts, and the aperture processing and second that can not only meet the first cutting portion is cut
Row cuts when cutting the upper chamfer machining in portion, and cutting when can also meet the chamfering under the processing of the 3rd cutting portion excludes, and row is made to cut more
It is smooth, improve processing quality.
3rd, the backlash bottom of the first cutting tip uses arc transition, increases the bending angle of cutting, also optimizes brill
The disconnected of head cuts performance, prevents iron and cuts and twines knife phenomenon.
Description of the drawings
Fig. 1 is the structure diagram of the utility model workpiece to be processed.
Fig. 2 and Fig. 3 is the front view of the utility model.
Fig. 4 is the left view of the utility model.
1-handle of a knife；2-the first cutting portion；3-the second cutting portion；4-the three cutting portion；5-sky knife portion；6-backlash bottom
Angle；7-the first main cutting edge；Knife face after 8-one；Knife face after 9-two；10-backlash；11-the first secondary land；12-the second master
Cutting edge；Knife face after 13-pair two；14-the three main cutting edge；Knife face after 15-pair three；16-chisel edge；17-drill core；18—
Straight flute.
Specific embodiment
The embodiment of the utility model is described in detail below in conjunction with attached drawing.
As shown in Fig. 2-Fig. 3, the structure of the present embodiment include the first cutting portion 2, the second cutting portion 3, the 3rd cutting portion 4,
Drill core 17, empty knife portion 5, straight flute 18 and handle of a knife 1, first cutting portion 2 have two groups, arranged on the same end face of cutter, wrap respectively
Include after the first main cutting edge 7, one knife face 9 after knife face 8 and two, the first main cutting edge 7 of any one group of the first cutting portion 3 with it is another
In group two after be equipped with backlash 10 between knife face 9,10 lower part of backlash connects straight flute 18, between two first main cutting edges 7
It is connected by chisel edge 16, the sky knife portion 5 is arranged on cutter side wall, for groove structure, 3 and the 3rd cutting portion of the second cutting portion
4 are located at the two side in empty knife portion 5 respectively, and the second cutting portion 3 is to chamfering in workpieces processing, and the 3rd cutting portion 4 is processing work
Chamfering under part, the second cutting portion 3 include knife face 13 after the second main cutting edge 12 and pair two, and the 3rd cutting portion 4 includes the 3rd master and cuts
Sword 14 and knife face 15 after pair three are cut, 7 and the 3rd main cutting edge 14 of the first main cutting edge is by being located at 18 side edge of straight flute
The secondary land 11 of the first of edge connects.
First cutting portion 2 described in two groups is centrosymmetric distribution in cutter end face centered on the center of circle of end face, the backlash
Base angle 6 is fillet, and radius of corner is 0.5~0.6mm.
Second main cutting edge, 12 and the 3rd main cutting edge 14 is just opposite, and the second main cutting edge 12 and the 3rd main cutting
Sword 14 is tilted with 5 bottom of sky knife portion in 45° angle to empty knife portion outside, and knife face 15 distinguishes position after knife face 13 and secondary three after described secondary two
In the second main cutting edge 12 and 14 one side of the 3rd main cutting edge.
First main cutting edge, 7 maximum gauge is d1, and 12 maximum gauge of the second main cutting edge is d2, and chamfering is wide on workpiece
It spends for c1, then meets d2 ＞ d1+2 × c1,14 maximum gauge of the 3rd main cutting edge is d3, empty 5 a diameter of d4 of knife portion, and lower chamfering is wide
It spends for c2, then meets 2 × c2+1 of d3-d4 ＞, the axial length in the sky knife portion 5 is L1, and inner hole of workpiece axial length is L2, then
Meet L1 ＞ L2+5,17 a diameter of q of drill core then meets q=0.3d1.
The process principle of above-mentioned drill mill tool is described below.
The processing of workpiece to be processed hole size is first completed using the first cutting portion, then moves quickly through workpiece to be processed
Empty knife part, using the upper chamfering of the second cutting portion workpieces processing, then griffe to make the junction in the 3rd cutting portion and empty knife portion with
Hole lower face is concordant, and offset cutter 0.5mm or so mills out lower chamfering with the 3rd cutting portion.
It these are only the preferred embodiment of the present invention, be not intended to limit the invention, for those skilled in the art
For member, the invention may be variously modified and varied.Any modification within the spirit and principles of the invention, being made,
Equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
Claims (4)
1. a kind of process drill mill tool of the both ends with chamfered bore, it is characterised in that：Including the first cutting portion, the second cutting portion,
Three cutting portions, drill core, empty knife portion, straight flute and handle of a knife, first cutting portion have two groups, arranged on the same end face of cutter, difference
Including knife face after knife face and two after the first main cutting edge, one, the first main cutting edge of any one group of the first cutting portion with another group
In two after backlash is equipped between knife face, the backlash lower part connects straight flute, is connected between two first main cutting edges by chisel edge
It connects, the sky knife portion is arranged on cutter side wall, is groove structure, and second cutting portion and the 3rd cutting portion are located at empty knife portion respectively
Two side, the second cutting portion is to chamfering in workpieces processing, and the 3rd cutting tip is to chamfering under workpieces processing, the second cutting
Portion includes knife face after the second main cutting edge and pair two, and the 3rd cutting portion includes knife face after the 3rd main cutting edge and pair three, and described the
One main cutting edge and the 3rd main cutting edge are connected by the be located at straight flute side edge edge first secondary land.
2. drill mill tool according to claim 1, it is characterised in that：First cutting portion described in two groups is in cutter end face to hold
Be centrosymmetric distribution centered on the center of circle of face, and the backlash bottom is equipped with fillet, and radius of corner is 0.5~0.6mm.
3. drill mill tool according to claim 1, it is characterised in that：Second main cutting edge and the 3rd main cutting edge are just
Relatively, and the second main cutting edge and the 3rd main cutting edge are tilted with empty knife portion bottom in 45° angle to empty knife portion outside, and described secondary two
Knife face is located at the second main cutting edge and the 3rd main cutting edge one side respectively after knife face and secondary three afterwards.
4. drill mill tool according to claim 1, it is characterised in that：The first main cutting edge maximum gauge is d1, the
Two main cutting edge maximum gauges are d2, and chamfering width is c1 on workpiece to be processed, then meets d2 ＞ d1+2 × c1, the 3rd main cutting
Sword maximum gauge is d3, and the empty a diameter of d4 in knife portion, lower chamfering width is c2, then meets 2 × c2+1 of d3-d4 ＞, the sky knife portion
Axial length for L1, workpiece to be processed inner hole axial length is L2, then meets L1 ＞ L2+5, a diameter of q of drill core, then full
Sufficient q=0.3d1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720584927.3U CN207386676U (en) | 2017-05-24 | 2017-05-24 | It is a kind of to process drill mill tool of the both ends with chamfered bore |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720584927.3U CN207386676U (en) | 2017-05-24 | 2017-05-24 | It is a kind of to process drill mill tool of the both ends with chamfered bore |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207386676U true CN207386676U (en) | 2018-05-22 |
Family
ID=62403081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720584927.3U Expired - Fee Related CN207386676U (en) | 2017-05-24 | 2017-05-24 | It is a kind of to process drill mill tool of the both ends with chamfered bore |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207386676U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108971594A (en) * | 2018-09-03 | 2018-12-11 | 中山市园丰精密刃具有限公司 | A kind of appearance molding composite cutter |
-
2017
- 2017-05-24 CN CN201720584927.3U patent/CN207386676U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108971594A (en) * | 2018-09-03 | 2018-12-11 | 中山市园丰精密刃具有限公司 | A kind of appearance molding composite cutter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180522 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |