CN102873388A - Multi-chip breaker groove milling cutter for printed circuit board (PCB) plate - Google Patents
Multi-chip breaker groove milling cutter for printed circuit board (PCB) plate Download PDFInfo
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- CN102873388A CN102873388A CN2011101982070A CN201110198207A CN102873388A CN 102873388 A CN102873388 A CN 102873388A CN 2011101982070 A CN2011101982070 A CN 2011101982070A CN 201110198207 A CN201110198207 A CN 201110198207A CN 102873388 A CN102873388 A CN 102873388A
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- chip
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- multibreak
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Abstract
The invention discloses a multi-chip breaker groove milling cutter for a printed circuit board (PCB) plate. The multi-chip breaker groove milling cutter comprises a body and a head which is fixedly connected to one end of the body, wherein a plurality of spiral chip removal grooves are formed in the outer lateral surface of the head along the axial direction of the head; first cutting edges and chip breaker grooves are formed in the same lateral edges of the juncture of the chip removal grooves and the outer lateral surface of the head on which the chip removal grooves are positioned, and two ends of each first cutting edge are provided with the other first cutting edge which is overlapped with the first cutting edge respectively along the directions of the chip removal grooves; a tip is formed on one lateral surface, which is away from the body, of the head; a second cutting edge is arranged on the tip; and the number of the chip breaker grooves is more than that of the chip removal grooves. By the multi-chip breaker groove milling cutter, chips are small and fine and are discharged smoothly; and the cutting resistance is reduced, the performance is improved, and the service life is prolonged.
Description
Technical field
The present invention relates to a kind of pcb board spare with multibreak bits slotting cutter.
Background technology
The PCB milling cutter is the cutting tool that mills in profile (moulding) process.Profile of tooth difference by milling cutter can be divided into helical tooth cutter and rhombus tooth milling cutter, is divided into again upper chip removal (the dextrorotation groove is main cutting edge) milling cutter and lower chip removal (left-handed groove is main cutting edge) milling cutter by the difference of chip removal direction.Lower chip removal type rhombus tooth milling cutter is to process left-handed chip area (main cutting edge) and the dextrorotation groove chip-breaker that quantity does not wait on the face of cylinder of milling cutter, form staggered one by one rhombus cutter tooth, produce little and flat cutting edge at each rhombus tooth, be mainly used in the processing of rigid plate.
But common rhombus tooth milling cutter all is the design of few one of chip breaking slot-number ratio chip area (forming the groove of main cutting edge) number, make it have some common problems, it is more loose to be mainly reflected in tooth (blade) distribution, and the facewidth is larger, causes cutting resistance larger, easy breaking, the smear metal that produces in the working angles is larger, and it is bad to produce easily chip removal, because cutting resistance is large, cause the vibrations of cutter and main shaft also large, the corresponding use life longevity is just shorter.
Summary of the invention
In order to overcome defects, the invention provides a kind of pcb board spare with multibreak bits slotting cutter, the bits that this milling cutter not only produces are less, thinner, and chip removal is more smooth and easy, and cutting resistance reduces, and performance improves, simultaneously also corresponding raising of life-span.
The present invention for the technical scheme that solves its technical problem and adopt is: a kind of pcb board spare comprises body and the head of this body one end that is connected with multibreak bits slotting cutter, is axially arranged with some helical form chip areas along it on the described head lateral surface; On the same side of the boundary of the head lateral surface at described every chip area and its place, be interval with successively the first cutting edge and chip-breaker, and the two ends of described each the first cutting edge all have another first cutting edge with it overlapping (be that cutter rotates a circle, all first cutting edges form enclosed shape) along described chip area direction; Described head forms the tip away from a side of described body, and described tip is provided with the second cutting edge, and described chip-breaker is more than described chip area quantity.
As a further improvement on the present invention, described chip-breaker is than the depth as shallow 0-0.08mm of described chip area.
As a further improvement on the present invention, described chip removal groove depth 0.2-0.5mm.
As a further improvement on the present invention, described milling cutter length is 37.9-38.2mm.
As a further improvement on the present invention, described chip-breaker manys two than described chip area.
As a further improvement on the present invention, described tip is fishtail along the cross sectional shape of head axes, and described tip is projected as lightning shape (being that the tip is from radially being seen as fishtail, from axially being seen as lightning shape) on the cross section vertical with the axis of head.
The invention has the beneficial effects as follows:
By guarantee the cutting space-closed (cutter rotate a circle can not have cut less than the place) situation under as far as possible every main cutting edge is divided into multistage (more tooth is arranged), its effect is, first prevents that a penetration of a cutting tool area of each cutting edge is excessive, resistance to cutting is excessive, makes cutter distortion and ruptures; Reduce the cutting resistance in the processing, more stable when making Tool in Cutting, swing less.The second, because the chip breaking sword is more closeer, so can divide better bits, make smear metal become more broken, easier discharge can reduce the smear metal accumulation to the impact of crudy.
This pcb board spare is with more than the chip breaking slot-number ratio chip area number (main cutting edge) of multibreak bits slotting cutter two, three chip-breakers have also just been increased on original basis, it is closeer more even that blade is distributed, cutting edge less (facewidth diminishes), its cutting resistance significantly reduces, machine tool chief axis is stressed to be reduced, and has also protected the main shaft of lathe when having improved machining accuracy; Each cutting edge is stressed more even, and the cutter vibrations are inhibited; Improved the chip removal ability of cutter, prolonged cutting-tool's used life, made processing more smooth and easy.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is chip area cross-sectional structure schematic diagram of the present invention;
Fig. 3 is chip-breaker cross-sectional structure schematic diagram of the present invention;
Fig. 4 is tip configuration schematic diagram of the present invention.
By reference to the accompanying drawings, make the following instructions:
1---body 2---head
3---chip areas 4---the first cutting edge
5---chip-breaker 6---tip
7---the second cutting edge
The specific embodiment
A kind of pcb board spare comprises the head 2 of body 1 and this body one end that is connected with multibreak bits slotting cutter, is axially arranged with some helical form chip areas 3 along it on the described head lateral surface; On the same side of the boundary of the head lateral surface at described every chip area and its place, be interval with successively the first cutting edge 4 and chip-breaker 5, and the two ends of described each the first cutting edge all have another first cutting edge with it overlapping (be that cutter rotates a circle, all first cutting edges form enclosed shape) along described chip area direction; Described head forms tip 6 away from a side of described body, and described tip is provided with the second cutting edge 7, and described chip-breaker is more than described chip area quantity.
Above-mentioned chip-breaker is than the depth as shallow 0-0.08mm of described chip area.
Above-mentioned chip removal groove depth 0.2-0.5mm.
Above-mentioned milling cutter length is 37.9-38.2mm.
Above-mentioned chip-breaker manys two than described chip area.
Above-mentioned tip is fishtail along the cross sectional shape of head axes, and described tip is projected as lightning shape (being that the tip is from radially being seen as fishtail, from axially being seen as lightning shape) on the cross section vertical with the axis of head.
Claims (6)
1. a pcb board spare comprises body (1) and the head (2) of this body one end that is connected with multibreak bits slotting cutter, is axially arranged with some helical form chip areas (3) along it on the described head lateral surface; On the same side of the boundary of the head lateral surface at described every chip area and its place, be interval with successively the first cutting edge (4) and chip-breaker (5), and all to have another first cutting edge along described chip area direction overlapping with it at the two ends of described each the first cutting edge; Described head forms tip (6) away from a side of described body, and described tip is provided with the second cutting edge (7), it is characterized in that: described chip-breaker is more than described chip area quantity.
2. pcb board spare according to claim 1 is with multibreak bits slotting cutter, and it is characterized in that: described chip-breaker is than the depth as shallow 0-0.08mm of described chip area.
3. pcb board spare according to claim 1 and 2 is characterized in that: described chip removal groove depth 0.2-0.5mm with multibreak bits slotting cutter.
4. pcb board spare according to claim 3 is with multibreak bits slotting cutter, and it is characterized in that: described milling cutter length is 37.9-38.2mm.
5. pcb board spare according to claim 4 is with multibreak bits slotting cutter, and it is characterized in that: described chip-breaker manys two than described chip area.
6. pcb board spare according to claim 4 is with multibreak bits slotting cutter, and it is characterized in that: described tip is fishtail along the cross sectional shape of head axes, and described tip is projected as lightning shape on the cross section vertical with the axis of head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101982070A CN102873388A (en) | 2011-07-15 | 2011-07-15 | Multi-chip breaker groove milling cutter for printed circuit board (PCB) plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101982070A CN102873388A (en) | 2011-07-15 | 2011-07-15 | Multi-chip breaker groove milling cutter for printed circuit board (PCB) plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102873388A true CN102873388A (en) | 2013-01-16 |
Family
ID=47475025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101982070A Pending CN102873388A (en) | 2011-07-15 | 2011-07-15 | Multi-chip breaker groove milling cutter for printed circuit board (PCB) plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102873388A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108372324A (en) * | 2018-04-25 | 2018-08-07 | 浙江瑞亨精密工具有限公司 | The processing method in slot or hole on a kind of milling cutter and wiring board for processing line plate |
| CN110587006A (en) * | 2019-09-27 | 2019-12-20 | 广东鼎泰高科精工科技有限公司 | Diamond-shaped right-handed left-handed PCB milling cutter and machining method thereof |
| CN113199072A (en) * | 2020-01-30 | 2021-08-03 | 佑能工具株式会社 | Rotary cutting tool |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07195221A (en) * | 1993-12-28 | 1995-08-01 | Hitachi Tool Eng Ltd | Roughing ball end mill |
| CN101172308A (en) * | 2006-10-31 | 2008-05-07 | 佑能工具株式会社 | Rotation cutting tool |
| CN201470965U (en) * | 2009-09-14 | 2010-05-19 | 哈尔滨飞机工业集团有限责任公司 | Organic glass milling tools |
| CN201871787U (en) * | 2010-10-28 | 2011-06-22 | 昆山欧思克精密工具有限公司 | Zigzag tungsten steel coarse end mill |
| CN202169402U (en) * | 2011-07-15 | 2012-03-21 | 华伟纳精密工具（昆山）有限公司 | Milling cutter with multiple chip breaker grooves for PCB (printed circuit board) |
-
2011
- 2011-07-15 CN CN2011101982070A patent/CN102873388A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07195221A (en) * | 1993-12-28 | 1995-08-01 | Hitachi Tool Eng Ltd | Roughing ball end mill |
| CN101172308A (en) * | 2006-10-31 | 2008-05-07 | 佑能工具株式会社 | Rotation cutting tool |
| CN201470965U (en) * | 2009-09-14 | 2010-05-19 | 哈尔滨飞机工业集团有限责任公司 | Organic glass milling tools |
| CN201871787U (en) * | 2010-10-28 | 2011-06-22 | 昆山欧思克精密工具有限公司 | Zigzag tungsten steel coarse end mill |
| CN202169402U (en) * | 2011-07-15 | 2012-03-21 | 华伟纳精密工具（昆山）有限公司 | Milling cutter with multiple chip breaker grooves for PCB (printed circuit board) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108372324A (en) * | 2018-04-25 | 2018-08-07 | 浙江瑞亨精密工具有限公司 | The processing method in slot or hole on a kind of milling cutter and wiring board for processing line plate |
| CN110587006A (en) * | 2019-09-27 | 2019-12-20 | 广东鼎泰高科精工科技有限公司 | Diamond-shaped right-handed left-handed PCB milling cutter and machining method thereof |
| CN113199072A (en) * | 2020-01-30 | 2021-08-03 | 佑能工具株式会社 | Rotary cutting tool |
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Application publication date: 20130116 |