CN204295018U - J type seamed edge correction spiral bit - Google Patents
J type seamed edge correction spiral bit Download PDFInfo
- Publication number
- CN204295018U CN204295018U CN201420734237.8U CN201420734237U CN204295018U CN 204295018 U CN204295018 U CN 204295018U CN 201420734237 U CN201420734237 U CN 201420734237U CN 204295018 U CN204295018 U CN 204295018U
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- edge
- seamed edge
- drill bit
- main cutting
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- Expired - Lifetime
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- 238000012937 correction Methods 0.000 title claims abstract description 14
- 238000005520 cutting process Methods 0.000 claims abstract description 22
- 238000005553 drilling Methods 0.000 abstract description 10
- 229910000838 Al alloy Inorganic materials 0.000 abstract description 3
- 238000005266 casting Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000012545 processing Methods 0.000 description 6
- 229910003460 diamond Inorganic materials 0.000 description 3
- 239000010432 diamond Substances 0.000 description 3
- 229910001148 Al-Li alloy Inorganic materials 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- JFBZPFYRPYOZCQ-UHFFFAOYSA-N [Li].[Al] Chemical compound [Li].[Al] JFBZPFYRPYOZCQ-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 description 2
- 239000001989 lithium alloy Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
本实用新型涉及J型棱边修正麻花钻头，刀体和柄部是以同一中心轴线为中心的同轴圆柱体，刀体上磨出有螺旋状排屑槽，刀体头部的端面位置磨有两处后刀面，后刀面与排屑槽的交线形成主切削刃，两处后刀面的交线形成横刃，刀体靠近排屑槽的位置形成棱边，主切削刃与横刃之间磨有内刃，主切削刃与棱边的交点即为刀尖，对刀尖处的棱边清边形成J型棱边。设计J型棱边，刀尖附近的棱边变窄，减少入钻时的钻头阻力，使得钻头具备一定的径向切削能力，保证工件表面不垂直于钻孔方向时的钻孔精度，对于铸造铝合金尤为重要。也非常适合具有预铸孔的场合，当钻头自身制造精度，如同轴度和对称度高，并且强度足够时，通过棱边的切削能力保证钻削精度。
The utility model relates to a J-shaped edge correction twist drill bit. The cutter body and the shank are coaxial cylinders centered on the same central axis. The cutter body is ground with a spiral chip removal groove, and the end face position of the cutter body head is ground. There are two flanks, the intersection line of the flank and the chip flute forms the main cutting edge, the intersection line of the two flanks forms the chisel edge, the position of the cutter body close to the chip flute forms an edge, and the main cutting edge and An inner edge is ground between the chisel edges, and the intersection point of the main cutting edge and the edge is the tip of the tool, and the edge at the tip is cleaned to form a J-shaped edge. The J-shaped edge is designed, and the edge near the tool tip is narrowed, which reduces the resistance of the drill bit when drilling, so that the drill bit has a certain radial cutting ability, and ensures the drilling accuracy when the surface of the workpiece is not perpendicular to the drilling direction. For casting Aluminum alloys are especially important. It is also very suitable for occasions with pre-cast holes. When the drill bit itself has high manufacturing accuracy, such as high axiality and symmetry, and the strength is sufficient, the cutting ability of the edge can ensure the drilling accuracy.
Description
Technical field
The utility model relates to a kind of cutter of high-speed and high-efficiency cutting metal, particularly relates to a kind of J type seamed edge correction spiral bit for automotive casting aluminium alloy, the high-accuracy drilling of novel aluminum lithium alloy.
Background technology
Drilling is the important process in metal cutting, but most drilling processing belongs to preliminary working, the surface quality in hole, and dimensional accuracy and positional precision do not reach the final requirement of part usually, follow-uply also need reaming, bore hole or further fine finishining of reaming.
Due to not only very high to position accuracy demand in the processing such as automotive casting aluminium alloy, novel aluminum lithium alloy, the particular/special requirement of highly-efficient processing ability also must be possessed.This carries out corresponding improvement with regard to needing to the structure of drill bit, to improve surface quality and the drilling efficiency in hole under the prerequisite ensureing bore position precision.
Summary of the invention
The purpose of this utility model is to provide a kind of J type seamed edge correction spiral bit, the requirement to reaning allowance precise hard_drawn tuhes during to meet high position degree processing request and follow-up employing diamond reamer.
The purpose of this utility model is achieved through the following technical solutions:
J type seamed edge correction spiral bit, comprise cutter hub and shank, cutter hub and shank are the coaxial clyinders centered by same central axis, feature is: described cutter hub has ground helical form chip area, the endface position mill of cutter head body has knife face behind two places, the intersection of rear knife face and chip area forms main cutting edge, behind two places, the intersection of knife face forms chisel edge, cutter hub forms seamed edge near the position of chip area, between main cutting edge and chisel edge, mill has inner edge, the intersection point of main cutting edge and seamed edge is point of a knife, forms J type seamed edge to the clear limit of the seamed edge at point of a knife place.
Further, above-mentioned J type seamed edge correction spiral bit, wherein, the drill bit feed of every rotation that the length of described J type seamed edge equals 3 ~ 5 times.
Further, above-mentioned J type seamed edge correction spiral bit, wherein, the width of described J type seamed edge is 0.1 ~ 0.2mm.
Further, above-mentioned J type seamed edge correction spiral bit, wherein, described J type seamed edge bottom position is formed with drift angle.
Further, above-mentioned J type seamed edge correction spiral bit, wherein, the angle of described drift angle is 10 ~ 15 °.
Substantive distinguishing features and the progress of technical solutions of the utility model are mainly reflected in:
Design J type seamed edge, the drill bit seamed edge near point of a knife narrows, and reduces into drill bit resistance during brill, and makes drill bit possess certain radial cutting ability, ensure that borehole accuracy when surface of the work is not orthogonal to boring direction, particularly important for Birmasil.Also be applicable to very much the occasion with precast hole, when drill bit self accuracy of manufacture, as axiality and symmetry high, and when intensity is enough, be enough to ensure drilling precision by the cutting power of seamed edge.Requirement to reaning allowance precise hard_drawn tuhes when meeting high position degree processing request and follow-up employing diamond reamer.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solutions of the utility model are described further:
Fig. 1: organigram of the present utility model;
Fig. 2: the organigram of cutter head body;
The close-up schematic view of Fig. 3: J type seamed edge.
Detailed description of the invention
As shown in Figure 1, J type seamed edge correction spiral bit, comprise cutter hub 1 and shank 2, cutter hub 1 and shank 2 are the coaxial clyinders centered by same central axis, shank 2 is the higher one section of cylinder of circle precision, possesses cutting power during use by handle of a knife clamping shank 2 to transmit machine power and make cutter rotation.Cutter hub 1 has ground spiral helicine chip area 3, knife face 4 after the endface position mill of cutter head body has two places, rear knife face 4 forms main cutting edge 5 with the intersection of chip area 3, behind two places, the intersection of knife face 4 forms chisel edge 6, to cutter hub grind off unnecessary part near the position of chip area 3 by clear limit technique at cutter hub 1, only retain a spiral helicine face of cylinder, form seamed edge 7.
As shown in Figure 2, between main cutting edge 5 and chisel edge 6, grind inner edge 10, be used for revising chisel edge further, to improve the centering ability of drill bit.Further, by adjustment inner edge 10, relative position between chisel edge 6 and main cutting edge 5 three and angle, improve Chip Morphology and be beneficial to chip breaking.Main cutting edge 5 is point of a knife 8 with the intersection point of seamed edge 7, carries out the clear limit of secondary form J type seamed edge 9 near point of a knife 8 to seamed edge 7.
As shown in Figure 3, the length L of J type seamed edge is the drill bit feed of every rotation of 3 ~ 5 times.The width W of J type seamed edge is 0.1 ~ 0.2mm.During the clear limit of secondary, J type seamed edge bottom position forms drift angle a, and drift angle a angle is 10 ~ 15 °, is beneficial to raising hole wall quality.
In sum, design J type seamed edge, the drill bit seamed edge mill near point of a knife is narrow, reduce into drill bit resistance during brill, and make drill bit possess certain radial cutting ability, and ensure that borehole accuracy when surface of the work is not orthogonal to boring direction, particularly important for Birmasil.Also be applicable to very much the occasion with precast hole, when drill bit self accuracy of manufacture, as axiality and symmetry high, and when intensity is enough, be enough to ensure drilling precision by the cutting power of seamed edge.Requirement to reaning allowance precise hard_drawn tuhes when meeting high position degree processing request and follow-up employing diamond reamer.
It is emphasized that: be only preferred embodiment of the present utility model above, not any pro forma restriction is done to the utility model, every above embodiment is done according to technical spirit of the present utility model any simple modification, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (3)
1.J type seamed edge correction spiral bit, comprise cutter hub and shank, cutter hub and shank are the coaxial clyinders centered by same central axis, it is characterized in that: described cutter hub has ground helical form chip area, the endface position mill of cutter head body has knife face behind two places, the intersection of rear knife face and chip area forms main cutting edge, behind two places, the intersection of knife face forms chisel edge, cutter hub forms seamed edge near the position of chip area, between main cutting edge and chisel edge, mill has inner edge, the intersection point of main cutting edge and seamed edge is point of a knife, forms J type seamed edge to the clear limit of the seamed edge at point of a knife place.
2. J type seamed edge correction spiral bit according to claim 1, is characterized in that: the drill bit feed of every rotation that the length of described J type seamed edge equals 3 ~ 5 times.
3. J type seamed edge correction spiral bit according to claim 1, is characterized in that: the width of described J type seamed edge is 0.1 ~ 0.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420734237.8U CN204295018U (en) | 2014-11-27 | 2014-11-27 | J type seamed edge correction spiral bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420734237.8U CN204295018U (en) | 2014-11-27 | 2014-11-27 | J type seamed edge correction spiral bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204295018U true CN204295018U (en) | 2015-04-29 |
Family
ID=53100599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420734237.8U Expired - Lifetime CN204295018U (en) | 2014-11-27 | 2014-11-27 | J type seamed edge correction spiral bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204295018U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104439432A (en) * | 2014-11-27 | 2015-03-25 | 苏州阿诺精密切削技术股份有限公司 | J-shaped seamed edge correction auger bit |
-
2014
- 2014-11-27 CN CN201420734237.8U patent/CN204295018U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104439432A (en) * | 2014-11-27 | 2015-03-25 | 苏州阿诺精密切削技术股份有限公司 | J-shaped seamed edge correction auger bit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160412 Address after: 311200 Xu village, Xintang street, Xiaoshan District, Zhejiang, Hangzhou Patentee after: HANGZHOU BINUO PRECISION TOOLS CO.,LTD. Address before: Suzhou City, Jiangsu province 215021 Industrial Park Kuatang subarea Baoda Road No. 8 Patentee before: SUZHOU AHNO PRECISION CUTTING TOOL TECHNOLOGY CO.,LTD. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150429 |