CN104209565B - A kind of three sword forming cutters - Google Patents

A kind of three sword forming cutters Download PDF

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Publication number
CN104209565B
CN104209565B CN201410503757.2A CN201410503757A CN104209565B CN 104209565 B CN104209565 B CN 104209565B CN 201410503757 A CN201410503757 A CN 201410503757A CN 104209565 B CN104209565 B CN 104209565B
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Prior art keywords
cutting edge
face
blades
blade
main cutting
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CN201410503757.2A
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CN104209565A (en
Inventor
刘浩
许九月
叶江华
任海
王希豪
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JIANGXI JIEHAO CARBIDE TOOL Co Ltd
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JIANGXI JIEHAO CARBIDE TOOL Co Ltd
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Abstract

A kind of three sword forming cutters, it includes integrated knife bar and cutter head, described cutter head is provided with three blades of annular array centered by the central shaft of described knife bar, three described blades all include main cutting edge and front cutting edge, described main cutting edge is the curve sword of indent, described curve sword is made up of the indent arcuate blade section of several radian gradual changes and mutual inscribe successively, described front cutting edge is straight line Zhou Ren, axial one end of described cutter head is connected on described knife bar, the other end forms the fluted disc shape end face of three teeth, one end of described main cutting edge is intersected with described front cutting edge, the other end intersects with the crown of described fluted disc shape end face, three described blades are formed with chip area each other, the anterior angle of described main cutting edge is zero degree, first relief angle is 13 ° 15 °, second relief angle is 20 ° 25 °;It is provided with lanyard on the major first flank of the main cutting edge of each described blade, and damping relief angle is 2 ° 4 °.

Description

A kind of three sword forming cutters
Technical field
The present invention relates to the cutting tool field of industrial processes, particularly to a kind of three swords for forming cutter to product appearance plastotype.
Background technology
Machine tooling is a kind of operation being processed stock by cutting tool, lathe is when processing shape, especially electronic product casing is such as: stainless steel material, when aluminum alloy materials and titanium alloy material, complexity due to Cutting Process, product casing with universal cutter processing, it is generally required to several procedures, each it is made up of several little curved surfaces even plane tangent split processing across the curved surface that width is relatively big or radian is bigger, therefore need to use some cuttves ability machine-shapings, segmental arc as bigger in processed radian, such operation needs often to be completed two little segmental arcs by two molding cutters in the course of processing and is connected into a complete segmental arc and completes, operation is numerous and diverse and inefficiency, and precision is the highest.Therefore the cutting tool of prior art as above is obvious for shortcoming present on curved face processing, has very much necessity of improvement further.
Summary of the invention
It is an object of the invention to provide a kind of three sword forming cutters, its technical problem to be solved is: traditional molding cutter is when machining section bar, cannot directly process the segmental arc face that radian is bigger, multiple mutual inscribes little segmental arc face can only be processed by some operation much knives, add operation, and may also can exist between some segmental arc faces intersect will not be irregular etc. situation, further increase follow-up surface treatment procedure.
nullFor solving above-mentioned technical problem,The present invention provides a kind of three sword forming cutters,It includes integrated knife bar and cutter head,Described cutter head is provided with three blades of annular array centered by the central shaft of described knife bar,Three described blades all include main cutting edge and front cutting edge,Described main cutting edge is the curve sword of indent,Described curve sword is made up of the indent arcuate blade section of several radian gradual changes and mutual inscribe successively,Described front cutting edge is the straight line Zhou Ren of the centerline axis parallel with described knife bar,Axial one end of described cutter head is connected on described knife bar,The other end forms the fluted disc shape end face of three teeth,One end of described main cutting edge is intersected with described front cutting edge,The other end intersects with the crown of described fluted disc shape end face,Three described blades are formed with chip area each other,Each described chip area is intersected around forming with the knife back face of another blade by the rake face of a blade in two adjacent blades respectively.
Be preferable over: the anterior angle of described main cutting edge be zero degree, the first relief angle be 13 °-15 °, the second relief angle be 20 °-25 °;First relief angle of front cutting edge is 13 °-15 °, the second relief angle is 20 °-25 °.
It is preferable over: on the major first flank of the main cutting edge of each described blade, be provided with lanyard, and damping relief angle is 2 °-4 °.
It is preferable over: the cutting edge circle run-out tolerance value of described main cutting edge is less than 0.005mm.
It is preferable over: described rake face is plane, and the polishing of described rake surface, the surface roughness of described rake face is less than 0.2 micron.
It is preferable over: in two adjacent described blades, boundary line between rake face and the knife back face of another blade of a blade constitutes the bottom land sideline of described chip area, described bottom land sideline is the camber line of indent, one end, described bottom land sideline is intersected with the roller seating space of described fluted disc shape end face, and the centerline axis parallel of the tangent line of point of intersection that intersects with the roller seating space of described fluted disc shape end face of described bottom land sideline and described knife bar.
It is preferable over: in two the most adjacent described blades, the angle between rake face and the knife back face of another blade of a blade is 80 °, and in two the most adjacent described blades, angle between rake face and the knife back face of another blade of a blade is rounding structure.
It is preferable over: end tooth first relief angle of described fluted disc shape end face is 8 °-12 °, the second relief angle is 18 °-24 °.
Compared with prior art, the invention has the beneficial effects as follows:
One, the main cutting edge of inner concave curve shape is used to disclosure satisfy that the segmental arc face processing of whole product, thus have only to a cutter and just can complete the operation that much knives just can complete, and use the overall segmental arc face surface accuracy that a cutter processes high, there is not the uneven of multiple segmental arc faces split formation, eliminate follow-up finishing step;
Two, it is provided with lanyard on the major first flank of main cutting edge, and then working angles can be made more steady, eliminate shake cutter phenomenon, and lanyard can also strengthen cutting edge strength, and Product processing surface is carried out smoothing effect;
Three, the trench bottom sideline of the imploded arcs wire of described chip area can effectively guide bits slag to discharge to surrounding, the angle rounding structure of bottom land ensure that chip removal is smooth and easy do not block bits while add the structural strength of stage property, described rake face polishing is also beneficial to smooth and easy chip removal.
Accompanying drawing explanation
Fig. 1 is the cutter overall structure schematic diagram of the present invention.
Fig. 2 is the cutter head end face structure schematic diagram of the present invention.
Fig. 3 is the cross section partial structurtes schematic diagram of the main cutting edge of the present invention.
Detailed description of the invention
The one three sword forming cutter proposed the present invention below with reference to accompanying drawing 1 to 3 and preferred embodiment is described in greater detail below.
nullThe present invention provides a kind of three sword forming cutters,It includes integrated knife bar 1 and cutter head 2,Described cutter head 2 is provided with three blades 3 of annular array centered by the central shaft of described knife bar 1,Three described blades 3 all include main cutting edge 4 and front cutting edge 5,Described main cutting edge 4 is the curve sword of indent,Described curve sword is made up of the indent arcuate blade section of several radian gradual changes and mutual inscribe successively,Described front cutting edge 5 is the straight line Zhou Ren of the centerline axis parallel with described knife bar 1,Axial one end of described cutter head 2 is connected on described knife bar 1,The other end forms the fluted disc shape end face 6 of three teeth,One end of described main cutting edge 4 is intersected with described front cutting edge 5,The other end intersects with the crown of described fluted disc shape end face 6,The anterior angle of described main cutting edge 4 is zero degree、First relief angle a is 13 °-15 °、Second relief angle b is 20 °-25 °;First relief angle of front cutting edge 5 is 13 °-15 °, the second relief angle is 20 °-25 °, three described blades 3 are formed with chip area 7 each other, and each described chip area 7 is intersected around forming with the knife back face 9 of another blade 3 by the rake face 8 of a blade 3 in two adjacent blades 3 respectively.
Preferred embodiment: be provided with lanyard 42 on the major first flank 41 of the main cutting edge 4 of each described blade 3, and damping relief angle c is 2 °-4 °, described lanyard 42, and then working angles can be made more steady, eliminate shake cutter phenomenon, and lanyard 42 can also strengthen the cutting edge strength of described main cutting edge 3, and Product processing surface is carried out smoothing effect.
Preferred embodiment: the cutting edge circle run-out tolerance value of described main cutting edge 3 is less than 0.005mm, and then cutting can be made the most accurate.
Preferred embodiment: described rake face 8 is plane, and described rake face 8 surface finish, the surface roughness of described rake face 8 is less than 0.2 micron, and the polishing of described rake face 8 is conducive to smooth and easy chip removal.
Preferred embodiment: in two adjacent described blades 3, boundary line between rake face 8 and the knife back face 9 of another blade 3 of a blade 3 constitutes the bottom land sideline 71 of described chip area 7, described bottom land sideline 71 is the camber line of indent, one end, described bottom land sideline 71 is intersected with the roller seating space of described fluted disc shape end face 6, and the centerline axis parallel of the tangent line of point of intersection that intersects with the roller seating space of described fluted disc shape end face 6 of described bottom land sideline 71 and described knife bar 1, and then gradually becoming shallower as radially while making chip area 7 extend axially, radially discharge while the bits slag entering described chip area 7 can be axially guided.
Preferred embodiment: in two the most adjacent described blades 3, the angle between rake face 8 and the knife back face 9 of another blade 3 of a blade 3 is 80 °, and angle between rake face 8 and the knife back face 9 of another blade 3 of a blade 3 is rounding structure in two the most adjacent described blades 3, rounding structure is utilized to enhance the structural strength between described blade 3 and cutter head 2, and can effectively prevent from considering slag to be worth doing to be stuck in discharge process in the bottom land angle of chip area 7, make chip removal more smooth and easy.
Preferred embodiment: end tooth first relief angle of described fluted disc shape end face 6 is 8 °-12 °, the second relief angle is 18 °-24 °.
Comprehensive described, technical scheme sufficiently effective can complete foregoing invention purpose, and the structural principle of the present invention and principle of work and power the most sufficiently verified, and intended effect and purpose can be reached, and embodiments of the invention can also convert according to these principles, therefore, the present invention include all be previously mentioned in claim in the range of all replacement contents.Any equivalence change made in scope of the present invention patent, within all belonging to the scope of the claims of this case application.

Claims (7)

  1. null1. a sword forming cutter,It includes integrated knife bar and cutter head,Described cutter head is provided with three blades of annular array centered by the central shaft of described knife bar,Three described blades all include main cutting edge and front cutting edge,Described main cutting edge is the curve sword of indent,Described curve sword is made up of the indent arcuate blade section of several radian gradual changes and mutual inscribe successively,Described front cutting edge is the straight line Zhou Ren of the centerline axis parallel with described knife bar,Axial one end of described cutter head is connected on described knife bar,The other end forms the fluted disc shape end face of three teeth,One end of described main cutting edge is intersected with described front cutting edge,The other end intersects with the crown of described fluted disc shape end face,It is provided with lanyard on the major first flank of the main cutting edge of each described blade,And damping relief angle is 2 °-4 °,Three described blades are formed with chip area each other,Each described chip area is intersected around forming with the knife back face of another blade by the rake face of a blade in two adjacent blades respectively.
  2. A kind of three sword forming cutters, it is characterized in that: in two adjacent described blades, boundary line between rake face and the knife back face of another blade of a blade constitutes the bottom land sideline of described chip area, described bottom land sideline is the camber line of indent, one end, described bottom land sideline is intersected with the roller seating space of described fluted disc shape end face, and the centerline axis parallel of the tangent line of point of intersection that intersects with the roller seating space of described fluted disc shape end face of described bottom land sideline and described knife bar.
  3. A kind of three sword forming cutters, it is characterized in that: in two the most adjacent described blades, the angle between rake face and the knife back face of another blade of a blade is 80 °, and in two the most adjacent described blades, angle between rake face and the knife back face of another blade of a blade is rounding structure.
  4. A kind of three sword forming cutters, it is characterised in that: end tooth first relief angle of described fluted disc shape end face is 8 °-12 °, the second relief angle is 18 °-24 °.
  5. A kind of three sword forming cutters, it is characterised in that: the anterior angle of described main cutting edge be zero degree, the first relief angle be 13 °-15 °, the second relief angle be 20 °-25 °;First relief angle of front cutting edge is 13 °-15 °, the second relief angle is 20 °-25 °.
  6. A kind of three sword forming cutters, it is characterised in that: described rake face is plane, and the polishing of described rake surface, and the surface roughness of described rake face is less than 0.2 micron.
  7. 7. the one three sword forming cutter as described in any one in claim 2,3,6, it is characterised in that: the cutting edge circle run-out tolerance value of described main cutting edge is less than 0.005mm.
CN201410503757.2A 2014-09-28 2014-09-28 A kind of three sword forming cutters Active CN104209565B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105328220A (en) * 2015-12-15 2016-02-17 常州市海力工具有限公司 Curved surface formed tool
CN108580997B (en) * 2018-05-31 2020-04-07 上海电气电站设备有限公司 Forming milling cutter for machining blade root of gas turbine compressor blade

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4654622B2 (en) * 2004-07-01 2011-03-23 株式会社タンガロイ Rotary cutting tool
CN201895130U (en) * 2010-11-23 2011-07-13 常州市新西华亚工具有限公司 Novel T-shaped milling cutter
CN201988785U (en) * 2010-11-23 2011-09-28 常州市新西华亚工具有限公司 Spiral copy cutter
JP2012206228A (en) * 2011-03-30 2012-10-25 Npo Green Network Milling tool
CN104001978A (en) * 2014-06-13 2014-08-27 苏州博睿测控设备有限公司 Hard alloy milling tool
CN204053052U (en) * 2014-09-28 2014-12-31 江西杰浩硬质合金工具有限公司 A kind of three sword forming cutters

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4654622B2 (en) * 2004-07-01 2011-03-23 株式会社タンガロイ Rotary cutting tool
CN201895130U (en) * 2010-11-23 2011-07-13 常州市新西华亚工具有限公司 Novel T-shaped milling cutter
CN201988785U (en) * 2010-11-23 2011-09-28 常州市新西华亚工具有限公司 Spiral copy cutter
JP2012206228A (en) * 2011-03-30 2012-10-25 Npo Green Network Milling tool
CN104001978A (en) * 2014-06-13 2014-08-27 苏州博睿测控设备有限公司 Hard alloy milling tool
CN204053052U (en) * 2014-09-28 2014-12-31 江西杰浩硬质合金工具有限公司 A kind of three sword forming cutters

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