CN208427767U - A kind of aperture perforation cutter - Google Patents
A kind of aperture perforation cutter Download PDFInfo
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- CN208427767U CN208427767U CN201820835544.3U CN201820835544U CN208427767U CN 208427767 U CN208427767 U CN 208427767U CN 201820835544 U CN201820835544 U CN 201820835544U CN 208427767 U CN208427767 U CN 208427767U
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- Prior art keywords
- cutter
- utility
- model
- knife
- cast gate
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Abstract
The utility model provides a kind of aperture perforation cutter, the cutter hub including cylindrical type, and the cutter head portion of described cutter hub one end is arranged in, and the cutter head portion includes the blade at the top of the head body and the head body of cylinder type.The blade has symmetrical two the first knife faces and symmetrical two the second knife faces, and first knife face and second knife face are plane, and is spaced symmetrical.The maximum width D on the top of the blade2Equal to the outlet diameter Φ of the cast gate.The aperture of the utility model penetrates through cutter, significantly improves the processing efficiency of cast gate, reduces production cost.Meanwhile the notch of the cast gate of formation is sharp, inner surface is smooth, hence it is evident that more high-quality than the cast gate that electro-discharge machining obtains.
Description
Technical field
The utility model belongs to cutting-tool engineering field, specifically, being to penetrate through cutter about a kind of aperture
Background technique
In the prior art, the machining pouring gate on injection mould product, generallys use electro-discharge machining mode, however electro-discharge machining is deposited
In following technological deficiency:
(1), the electrode of pre-production gate shape is needed, then carries out electro-discharge machining again, therefore, total process time
It is long.
(2), cast gate rough inner surface, notch is not sharp, and burr is more, it is also necessary to polish burr with grinding machine, cause to handle
Process increases, and process time extends, and processing efficiency is low, and production cost reduces.
Therefore, it is necessary to a kind of novel cast gate processing method be researched and developed, to overcome above-mentioned technological deficiency in the prior art.
Utility model content
The inventor of the utility model passes through long-term practical experience, has invented a kind of novel cast gate processing method:
Using the tool sharpening cast gate ground on milling machine, processing efficiency is significantly improved, production cost is reduced.
The purpose of this utility model is to provide a kind of apertures to penetrate through cutter, to improve processing efficiency, reduces processing cost,
And improve processing quality.
To achieve the above object, the utility model uses following technical scheme:
A kind of aperture perforation cutter, the cutter hub including cylindrical type, and the cutter head portion of described cutter hub one end, the knife are set
Head includes the blade at the top of the head body and the head body of cylinder type;
The blade has symmetrical two the first knife faces and symmetrical two the second knife faces, first knife face and described
Second knife face is plane, and is spaced symmetrical;
The maximum width D on the top of the blade2Equal to the outlet diameter Φ of the cast gate.
According to the utility model, the diameter of the head body is less than the diameter of the cutter hub.
According to the utility model, with the interconnecting piece of cone type between the cutter hub and the cutter head portion.
According to the utility model, the diameter of the head body is less than the maximum width D2。
Angle theta according to the utility model, between two first knife faces4For 10-160 degree;Two second knives
Angle theta between face5For 60-160 degree.
Further, the angle theta4For 20-120 degree.
Further, the angle theta5For 90-150 degree.
Compared with prior art, the utility model has following advantageous effects:
The aperture of the utility model penetrates through cutter, can be used for processing injection mould cast gate on milling machine.Due to not using electric discharge
Processing method, there is no need to the electrodes of pre-production gate shape, so that process time shorten to the half of electro-discharge machining, significantly
Processing efficiency is improved, production cost is reduced.
Meanwhile it is sharp using the notch of the cast gate of the aperture of the utility model perforation tool sharpening, inner surface is smooth, bright
It is aobvious more high-quality than the cast gate that electro-discharge machining obtains.
The aperture of the utility model penetrates through cutter, it can also be used to the opening in hole on product.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that processed product is splitted along the cast gate plane of symmetry.
Fig. 2 is the main view of the perforating cutter of one embodiment.
Fig. 3 is the main view enlarged drawing in the cutter head portion of Fig. 2.
Fig. 4 is the top view of the perforating cutter of the utility model.
Fig. 5 is the left view enlarged drawing in the cutter head portion of one embodiment.
Fig. 6 is that the aperture of second embodiment penetrates through the main view of cutter.
Fig. 7 is the main view enlarged drawing in the cutter head portion of Fig. 6.
Fig. 8 is the left view enlarged drawing in the cutter head portion of second embodiment.
Fig. 9 is that processed product is mounted on jig, with the schematic diagram of the tool sharpening cast gate of the utility model, in figure,
There are relational expressions: alpha+beta=90 degree at the angle α of the cast gate at the angle β and processed product of jig.
In figure: (1,3)-cutter hub, (2,4)-cutter head portion, 5- processed product, 6- jig, 21- tapered tip, 22- chip removal
Slot, 23- blade, 211- protrusion, 221- rake face, 231- flank, the bottom surface 222-, another side 223-, the head 41- master
Body, 42- blade, 43- interconnecting piece, the first knife face of 421- 421, the second knife face of 422-
Specific embodiment
With reference to the accompanying drawing, the technical solution of the utility model is described in further detail with specific embodiment.It answers
Understand, following embodiment is merely to illustrate the utility model not for restriction the scope of the utility model.
As shown in Figures 2 to 5, one embodiment of the utility model provides a kind of perforating cutter, including cylindrical type
Cutter hub 1, and the cutter head portion 2 of described 1 one end of cutter hub is set, the cutter head portion 2 is symmetrical structure, has tapered tip 21, institute
It states and symmetrically opens up two chip spaces 22 in tapered tip 21, the tapered tip 21 between two chip spaces 22 is blade 23,
The chip space 22 extends downward into the upper end of the cutter hub 1.
There are two side, one of side is vertically arranged the tool of chip space 22, is rake face 221, before two described
Knife face 221 is symmetrical arranged;The rake face 221 is vertically arranged, being capable of effective guarantee machining accuracy.The lateral surface of the blade 23
For flank 231.The angle after tangent line intersection in two 231 symmetric positions of flank is θ2。
The perforating cutter of the utility model is used for when processing injection mould cast gate on milling machine, due to not using electro-discharge machining
Method, there is no need to the electrodes of pre-production gate shape to significantly improve so that process time shorten to the half of electro-discharge machining
Processing efficiency reduces production cost.Meanwhile, interior table sharp using the notch of the cast gate of the tool sharpening of the utility model
Face is smooth, hence it is evident that more high-quality than the cast gate that electro-discharge machining obtains.
Further, the bottom surface 222 of the chip space is horizontal.
According to the utility model, another side 223 of the chip space 22 opposite with the rake face 221 is also vertical
Setting, so that the rake face 221 of the same chip space 22 and the angle of another side 223 are 90 in Fig. 4
Degree.
According to the utility model, the θ2It is 20~60 degree.
Further, the θ2It is 30~50 degree.
According to the utility model, the top center of the tapered tip 21 has protrusion 211.
According to the utility model, the two sides of the protrusion 211 are symmetrical, form angle theta3。θ3Setting for process when
Prevent cracking of cutter.
Further, the θ3It is 60~150 degree.
According to the utility model, the maximum width D on the top of two blades 231Than the outlet diameter Φ of the cast gate
It is slightly smaller.When being used for machining pouring gate, it is ensured that the cutter head portion 2 can drill from the top surface of the processed product 3, until
The side of the processed product 3 starts to expand, but does not penetrate through.
Further, the maximum width D1It is the 90%~98% of Φ.
Further, the maximum width D1It is the 95%~98% of Φ.
As shown in figures 1 and 3, the θ2With the θ1Numerical value is equal.
According to the utility model, the perforating cutter of the utility model, using A1, AF1 or AFU steel, in hard material
Machining pouring gate on material, or the demanding smart hole of machining tolerance on softwood.
Also common cutter material can be used to prepare the cutter of the utility model, the processing for the hole that commercial tolerance requires.
When being used for machining pouring gate, the preparation method of the perforating cutter of the utility model:
1) it selects the cylindrical rod of A1, AF1 or AFU steel as cutter hub 1, first opens chip space 22 in one end of cutter hub 1, then
The cutter hub 1 for holding chip space 22 successfully is clipped on knife sharpener, knife sharpener is pulled to θ21/2 angle, then ground, so that two
The angle after tangent line intersection in 231 symmetric position of flank is θ2。
2) top for grinding two blades 23 in the cutter head portion 2, processes the protrusion 211, so that maximum
Width D1To design width.
3) by knife sharpener pull to θ3Identical angle grinds the two sides of the protrusion 211 symmetrically, so that two sides
Angle between face is θ3。
As shown in Figure 6 to 8, second embodiment of the utility model provides a kind of aperture perforation cutter, the aperture
Perforation cutter includes the cutter hub 3 of cylindrical type, and the cutter head portion 4 of described 3 one end of cutter hub is arranged in, and the cutter head portion 4 includes cylinder
The blade 42 at 41 top of head body 41 and the head body of figure.
The blade 42 has symmetrical two the first knife faces 421 and symmetrical two the second knife faces 422, first knife
Face 421 and second knife face 422 are plane, and are spaced symmetrical.
The maximum width D on the top of the blade 422Equal to the outlet diameter Φ of the cast gate.
The aperture of the utility model penetrates through cutter, is used for when processing injection mould cast gate on milling machine, when using first reality
The injection mould perforating cutter for applying example carries out roughing with after finishing to milling machine, penetrates through cutter one using the aperture of the utility model
Knife can realize the perforation of cast gate.
It is therefore not necessary to the electrode of pre-production gate shape, process time is the half of electro-discharge machining, significantly improves life
Efficiency is produced, reduces production cost, and the notch for the cast gate processed is sharp, inner surface is smooth, hence it is evident that obtain than electro-discharge machining
Cast gate is high-quality.
According to the utility model, the diameter of the head body 41 is less than the diameter of the cutter hub 3.Above-mentioned setting can mention
High manufacturing accuracy ensures processing quality.
Further, with the interconnecting piece 43 of cone type between the cutter hub 3 and the cutter head portion 4.Pass through the circle
The interconnecting piece 43 of frustum type realizes that the diameter of the head body 41 is less than the diameter of the cutter hub 3.Aperture has been effectively ensured to pass through
The quality of logical cutter.
According to the utility model, the diameter of the head body 41 is less than the maximum width D2.Further increase processing
Precision ensures processing quality.
Angle theta according to the utility model, between two first knife faces 4214For 10-160 degree;Two described second
Angle theta between knife face 4225For 60-160 degree.
According to the utility model, the angle theta4For 20-120 degree.
According to the utility model, the angle theta5For 90-150 degree.
According to the utility model, the aperture of the utility model penetrates through cutter, using A1, AF1 or AFU steel, for hard
Cast gate is penetrated through on material, or the high smart hole of tolerance is penetrated through on softwood.
Also it can be used common cutter material to prepare the cutter of second embodiment of the utility model, wanted for commercial tolerance
The perforation in the hole asked.
The processing method of the aperture perforation cutter of the utility model, includes the following steps:
(1), one end of A1, AF1 or AFU steel pole (i.e. cutter hub 3) of cylinder type is ground by knife sharpener it is small, until setting
Diameter is counted, the cutter head portion 4 of cylinder type is formed.
(2), knife sharpener is pulled to θ41/2 angle, the top in cutter head portion 4 is ground into out symmetrical first knife face 421, then
Knife sharpener is pulled to θ51/2 angle, and cutter hub 3 is rotated by 90 °, thus by the top in cutter head portion 4 grind out two it is symmetrical
Second knife face 422.
(3), finally by the maximum width D on the top of the blade 422It is milled to the outlet diameter of the cast gate or smart hole.
A specific embodiment according to the present utility model, using the knife of above-mentioned one embodiment and second embodiment
Tool processes cast gate shown in FIG. 1, the bus L poured on the cross section that the opening's edge plane of symmetry is splitted1And L2Angle theta1It is 30 degree,
The center line L of the cast gate of processed product3Angle α with the vertical side edge of the cross section is 40 degree.
The size of corresponding perforating cutter are as follows: θ2It is 30 degree, the outlet diameter Φ of the cast gate is 0.8mm, described in two
The maximum width D on 23 top of blade1It is the 95% of Φ for 0.76mm.
The size of corresponding aperture perforation cutter are as follows: the angle theta between two first knife faces4It is 60 degree, two institutes
State the angle theta between the second knife face5It is 120 degree.
Specific procedure of processing is as follows:
The roughing stage: as shown in figure 9, the angle β of jig 6 is 50 degree, it is first that processed product 5 is fixed with jig 6, and even
It is fixed on milling machine together with jig 5, then by the perforating cutter of one embodiment vertically from top to bottom from processed product 5
Top surface while rotation while cut, cut depth be 0.05mm/ time, revolving speed be 2500 revs/min, when cutter decline 0.05mm depth
When, cutter is lifted up, bits foam is discharged from the chip space 22, then repeats to cut, until separating out mouth, there is also about 0.05mm.
Finishing stage: causing perforating cutter to wear since the roughing stage repeatedly cuts, and machining accuracy reduces, therefore needs
A knife is changed to finish last 0.05mm depth.Controlling revolving speed is 3000 revs/min, and a knife gos deep into 0.05mm, is protected
It demonstrate,proves and is expanded slightly outwards at the gate outlet of the side of processed product 5, but and be not penetrated.
The perforation stage: cutter is penetrated through with the aperture of second embodiment, control revolving speed is 3000 revs/min, and a knife will be to be added
The side of chemical product 5 penetrates through, and forms outlet.
The perforating cutter of the utility model and aperture penetrate through cutter, are not limited solely to the aperture of cast gate shown in FIG. 1.It can
For opening up for other cast gates, the aperture on product can also be realized by boring method conventional in the prior art.
Specific embodiment of the utility model is described in detail above, but it is only used as example, the utility model
It is not restricted to particular embodiments described above.To those skilled in the art, any that this practical is equal
Modifications and substitutions are also all among the scope of the utility model.Therefore, the institute under the spirit and scope for not departing from the utility model
The equal transformation and modification of work, should all cover in the scope of the utility model.
Claims (7)
1. a kind of aperture penetrates through cutter, which is characterized in that the cutter hub including cylindrical type, and the cutter head of described cutter hub one end is set
Portion, the cutter head portion include the blade at the top of the head body and the head body of cylinder type;
The blade has symmetrical two the first knife faces and symmetrical two the second knife faces, first knife face and described second
Knife face is plane, and is spaced symmetrical;
The maximum width D on the top of the blade2Equal to the outlet diameter Φ of cast gate.
2. aperture according to claim 1 penetrates through cutter, which is characterized in that the diameter of the head body is less than the knife
The diameter of body.
3. aperture according to claim 2 penetrates through cutter, which is characterized in that have between the cutter hub and the cutter head portion
The interconnecting piece of cone type.
4. aperture according to claim 1 penetrates through cutter, which is characterized in that the diameter of the head body be less than it is described most
Big width D2。
5. aperture according to claim 1 penetrates through cutter, which is characterized in that the angle theta between two first knife faces4
For 10-160 degree;Angle theta between two second knife faces5For 60-160 degree.
6. aperture according to claim 5 penetrates through cutter, which is characterized in that the angle theta4For 20-120 degree.
7. aperture according to claim 5 penetrates through cutter, which is characterized in that the angle theta5For 90-150 degree.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201820835544.3U CN208427767U (en) | 2018-05-31 | 2018-05-31 | A kind of aperture perforation cutter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201820835544.3U CN208427767U (en) | 2018-05-31 | 2018-05-31 | A kind of aperture perforation cutter |
Publications (1)
Publication Number | Publication Date |
---|---|
CN208427767U true CN208427767U (en) | 2019-01-25 |
Family
ID=65099871
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201820835544.3U Expired - Fee Related CN208427767U (en) | 2018-05-31 | 2018-05-31 | A kind of aperture perforation cutter |
Country Status (1)
Country | Link |
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CN (1) | CN208427767U (en) |
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2018
- 2018-05-31 CN CN201820835544.3U patent/CN208427767U/en not_active Expired - Fee Related
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Legal Events
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190125 Termination date: 20210531 |
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CF01 | Termination of patent right due to non-payment of annual fee |