CN103008733B - A kind of ladder apex point shovel drill blade - Google Patents
A kind of ladder apex point shovel drill blade Download PDFInfo
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- CN103008733B CN103008733B CN201210561284.2A CN201210561284A CN103008733B CN 103008733 B CN103008733 B CN 103008733B CN 201210561284 A CN201210561284 A CN 201210561284A CN 103008733 B CN103008733 B CN 103008733B
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- ladder
- breaker
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- apex point
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Abstract
The present invention relates to a kind of ladder apex point shovel drill blade.Also do not have now widely applicable, adaptable, the ladder apex point shovel drill blade that during work, stable cutting is sharp with cutting.The present invention includes cutter head and cutter hub, be characterized in: cutter head is isosceles triangular structure, two waists of the cutter head of this isosceles triangular structure are respectively arranged with left ladder group and right ladder group, ladder one_to_one corresponding in ladder and right ladder group in left ladder group, the front and back of cutter head is respectively arranged with a front chip-breaker and a back side chip-breaker, the upper end of front chip-breaker extends on a ladder of top in right ladder group, the lower end of front chip-breaker extends to the top of left land, the upper end of back side chip-breaker extends on a ladder of top in left ladder group, the lower end of this back side chip-breaker extends to the top of right land.Reasonable in design of the present invention, widely applicable, adaptable, during work, stable cutting is sharp with cutting.
Description
Technical field
The present invention relates to a kind of shovel drill blade, especially relate to a kind of ladder apex point shovel drill blade, belong to five metals machining tool, be applicable in mechanical processing industry.
Background technology
Replace the disposable type cutter of common fluted drill to shovel brill in existing market and be divided into knife bar and blade, wherein, blade adopts the end tooth geometry of standard, cut relatively steady, cutting resistance is medium, although it is not very good for cutting sharpness, but when using under normal circumstances, the service condition of this kind of blade is also fine, when but encountering the situation of plant capacity deficiency or the perceptual deficiency of drilling, this kind of blade just easily produces and cuts unstable situation, thus greatly reduce the overall performance of shovel brill, as can be seen here, the existing blade applicable surface for shoveling in brill is narrower, various working can not be applicable to.
It is not adopt end tooth geometry that cutter head at present on the drill bit of other type also has, if publication date is on 04 28th, 2010, publication number is in the Chinese patent of CN201442122U, disclose a kind of two-step diamond drill bit, this two-step diamond drill bit comprises bit sub and second order bit body, second order bit body makes two steps, cutting place on first step is welded with adamantine first rank blade, cutting place on second step is welded with adamantine second-order blade, the object being provided with hierarchic structure in this drill bit is the hole in order to once complete two diameters.And for example publication date is on 09 09th, 2009, publication number is in the Chinese patent of CN101524769, disclose a kind of interior cold transposition step drill, this interior cold transposition step drill comprises fixed part and drill body, described drill body is have step cylindrical, described drill body axial cross section outline is stepped, and the external diameter of drill body near one end of described fixed part is greater than the external diameter away from fixed part one end, side tool block and the outer side tool block of end face for the outside of machining hole in the end face that described drill body top is respectively equipped with for the core of machining hole, the stair-stepping jut of described drill body is provided with indexable insert tip, throw away tip, described bit-body face is provided with two helicla flutes with accommodating drilling cuttings and cutting fluid, the entity part of described drill body is shaped with the cutting fluid of two threaded hole for certain pressure of annotating, the object of this interior cold transposition step drill is in order to a feed just can produce shoulder hole.
In sum, also there is no a kind of reasonable in design now, widely applicable, adaptable, the ladder apex point shovel drill blade that during work, stable cutting is sharp with cutting.
Summary of the invention
The object of the invention is to overcome above shortcomings in prior art, and a kind of reasonable in design is provided, widely applicable, adaptable, the ladder apex point shovel drill blade that during work, stable cutting is sharp with cutting.
The present invention's adopted technical scheme that solves the problem is: this ladder apex point shovel drill blade comprises cutter head and cutter hub, described cutter head is fixed on cutter hub, at least two connecting holes are provided with in described cutter hub, this connecting hole is via-like structure, the bottom of described cutter hub is provided with locating slot, the both sides of described cutter hub are respectively arranged with left land and right land, this left land and right land flush with the front and back of cutter hub respectively, described ladder apex point shovel drill blade is integral type structure, its design feature is: described cutter head is isosceles triangular structure, two waists of the cutter head of this isosceles triangular structure are respectively arranged with left ladder group and right ladder group, the shape of ladder in described left ladder group, quantity and position respectively with the shape of ladder in right ladder group, quantity and position one_to_one corresponding, the front and back of described cutter head is respectively arranged with a front chip-breaker and a back side chip-breaker, this front chip-breaker and back side chip-breaker are ramp-like configuration, the upper end of described front chip-breaker extends on a ladder of top in right ladder group, the lower end of this front chip-breaker extends to the top of left land, the upper end of described back side chip-breaker extends on a ladder of top in left ladder group, the lower end of this back side chip-breaker extends to the top of right land.Cutter head is provided with left ladder group and right ladder group, namely the apex point of blade adopts ladder reconditioning apex point, during use, ladder cuts one by one, greatly reduces cutting resistance, effectively can extend the service life of blade, reduce axial force and torque, front chip-breaker and back side chip-breaker reasonable in design, scientific arrangement, better can carry out point bits.Stable cutting when the present invention works, cuts sharp, adaptable, even if when encountering the situation of plant capacity deficiency or the perceptual deficiency of drilling, blade also can cut by stable carrying out.
As preferably, the drift angle number of degrees of the cutter head of isosceles triangular structure of the present invention are 90-150 degree.Make the cutting effect of cutter head in the present invention better thus.
As preferably, the ladder quantity in left ladder group of the present invention is 2-5.Make the design of cutter head in the present invention more reasonable thus.
As preferably, locating slot of the present invention is rectangular configuration.Make structure of the present invention more simple thus, locating effect is better.
As preferably, the quantity of connecting hole of the present invention is two.Make structure of the present invention simpler thus.
As preferably, connecting hole of the present invention is shoulder hole structure.
As preferably, the axis of connecting hole of the present invention is vertical with cutter hub.Make fixed effect of the present invention better thus.
As preferably, the quantity of locating slot of the present invention is one, and this locating slot is positioned at the middle position of the bottom of cutter hub.
The present invention compared with prior art, has the following advantages and effect: structure is simple, reasonable in design, dependable performance, two waists of the cutter head of isosceles triangular structure are respectively arranged with left ladder group and right ladder group, can cutter life be increased, reduce axial force and torque.A front chip-breaker and a back side chip-breaker is respectively arranged with at the front and back of cutter head, the upper end of front chip-breaker extends on a ladder of top in right ladder group, the lower end of this front chip-breaker extends to the top of left land, the upper end of back side chip-breaker extends on a ladder of top in left ladder group, the lower end of this back side chip-breaker extends to the top of right land, scientific arrangement, better can carry out point bits.
Stable cutting when the present invention works, cuts sharp, adaptable, even if when encountering the situation of plant capacity deficiency or the perceptual deficiency of drilling, blade also can cut by stable carrying out.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of ladder apex point shovel drill blade in the embodiment of the present invention.
Fig. 2 is the plan structure schematic diagram of Fig. 1.
Fig. 3 is the left TV structure schematic diagram of Fig. 1.
Fig. 4 is the perspective view of ladder apex point shovel drill blade in the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, also by embodiment, the present invention is described in further detail, and following examples are explanation of the invention and the present invention is not limited to following examples.
Embodiment.
See Fig. 1 to Fig. 4, the ladder apex point shovel drill blade in the present embodiment comprises cutter head 1 and cutter hub 2, and cutter head 1 is fixed on cutter hub 2, and ladder apex point shovel drill blade is integral type structure.
Be provided with two connecting holes 24 in the cutter hub 2 of the present embodiment, this connecting hole 24 is via-like structure, is usually provided with at least two connecting holes 24 in cutter hub 2 of the present invention.Connecting hole 24 in the present embodiment is shoulder hole structure, and the axis of connecting hole 24 is vertical with cutter hub 2, and cutter hub 2 can better be fixed.
The bottom of the cutter hub 2 in the present embodiment is provided with a locating slot 23, and this locating slot 23 is positioned at the middle position of the bottom of cutter hub 2, and locating slot 23 is rectangular configuration.Be respectively arranged with left land 21 and right land 22 in the both sides of cutter hub 2, this left land 21 and right land 22 flush with the front and back of cutter hub 2 respectively.
Cutter head 1 in the present embodiment is isosceles triangular structure, and the drift angle number of degrees of the cutter head 1 of this isosceles triangular structure are 120 degree, and the drift angle number of degrees of the cutter head 1 of isosceles triangular structure of the present invention are usually at 90-150 degree.
The present embodiment is respectively arranged with left ladder group 12 and right ladder group 13 on two waists of the cutter head 1 of isosceles triangular structure, wherein, left ladder group 12 is made up of three ladders, right ladder group 13 is also made up of three ladders, in left ladder group 12 shape of ladder, quantity and position respectively with the shape of ladder in right ladder group 13, quantity and position one_to_one corresponding, when cutter head 1 rotates around blade axis, left ladder group 12 is identical with the movement locus of two ladders corresponding in right ladder group 13.Ladder quantity in the left ladder group 12 of the present invention can be determined according to actual conditions, and under normal circumstances, the ladder quantity in left ladder group 12 is 2-5.
The present embodiment is respectively arranged with a front chip-breaker 11 and a back side chip-breaker at the front and back of cutter head 1, this front chip-breaker 11 and back side chip-breaker are ramp-like configuration, wherein, the upper end of front chip-breaker 11 extends on a ladder of top in right ladder group 13, and the lower end of this front chip-breaker 11 extends to the top of left land 21.The upper end of back side chip-breaker extends on a ladder of top in left ladder group 12, and the lower end of this back side chip-breaker extends to the top of right land 22.
Ladder apex point shovel drill blade in the present embodiment is on the basis of former fluted drill, and all-in-one-piece drill bit is changed to the interchangeable drill bit of blade, blade adopts locating slot 23 to position, and is screwed, very easy to use.Blade is divided into cutter head 1 and cutter hub 2, and blade is provided with several ladders on the apex point of standard type blade, point consider during to reduce axial force and torque and cutting, raising drilling efficiency; In cutter hub 2, there are locating slot 23 and connecting hole 24, cutter head 1 have the tip shapes that notch cuttype apex point and cylindrical dorsal horn etc. are special, tool sharpening can be made wider general.
Chisel edge in the present invention can be X-shaped or H-shaped etc., and the apex point of blade adopts notch cuttype reconditioning apex point, can increase cutter life, reduce axial force and torque, better point bits; Dorsal horn or relief angle clear sword to foreign round can be had at the cylindrical of blade; Blade hook angle has worn chip-breaker, more effectively can carry out chip breaking.When the present invention is installation, adopt locating slot 23 to locate, screw fastening can be W type reconditioning apex point at point of a knife place, and with chip-breaker.
In the present invention, the front of said blade is x face, the back side of blade is y face, in fact, from the structure of blade, the front of blade and the back side of blade are identical, as long as after namely blade rotates 108 degree, the front of blade and the back side of blade have exchanged, the present invention is to describe aspect, just be defined as front and back.
In addition, it should be noted that, the specific embodiment described in this description, the shape, institute's title of being named etc. of its parts and components can be different, and the above content described in this description is only to structure example of the present invention explanation.The equivalence change that structure, feature and the principle of all foundations described in inventional idea of the present invention are done or simple change, be included in the protection domain of patent of the present invention.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment; only otherwise depart from structure of the present invention or surmount this scope as defined in the claims, protection scope of the present invention all should be belonged to.
Claims (4)
1. a ladder apex point shovel drill blade, comprise cutter head and cutter hub, described cutter head is fixed on cutter hub, at least two connecting holes are provided with in described cutter hub, this connecting hole is via-like structure, the bottom of described cutter hub is provided with locating slot, the both sides of described cutter hub are respectively arranged with left land and right land, this left land and right land flush with the front and back of cutter hub respectively, described ladder apex point shovel drill blade is integral type structure, it is characterized in that: described cutter head is isosceles triangular structure, two waists of the cutter head of this isosceles triangular structure are respectively arranged with left ladder group and right ladder group, the shape of ladder in described left ladder group, quantity and position respectively with the shape of ladder in right ladder group, quantity and position one_to_one corresponding, the front and back of described cutter head is respectively arranged with a front chip-breaker and a back side chip-breaker, this front chip-breaker and back side chip-breaker are ramp-like configuration, the upper end of described front chip-breaker extends on a ladder of top in right ladder group, the lower end of this front chip-breaker extends to the top of left land, the upper end of described back side chip-breaker extends on a ladder of top in left ladder group, the lower end of this back side chip-breaker extends to the top of right land, described left ladder group is made up of three ladders, and described right ladder group is also made up of three ladders, and when cutter head rotates around blade axis, left ladder group is identical with the movement locus of two ladders corresponding in right ladder group, one, centre ladder in described left ladder group is complete supporting surface, and one, the centre ladder in described right ladder group is complete supporting surface, chisel edge is X-shaped or H-shaped, and the apex point of blade adopts notch cuttype reconditioning apex point, to increase cutter life, reduces axial force and torque, better point bits, dorsal horn or relief angle clear sword is to foreign round had at the cylindrical of blade, blade hook angle has worn chip-breaker, more effectively carries out chip breaking, during installation, adopt locating slot location, screw fastening is W type reconditioning apex point at point of a knife place, and with chip-breaker, the drift angle number of degrees of the cutter head of described isosceles triangular structure are 90-150 degree, and described connecting hole is shoulder hole structure, and the axis of described connecting hole is vertical with cutter hub.
2. ladder apex point shovel drill blade according to claim 1, is characterized in that: described locating slot is rectangular configuration.
3. ladder apex point shovel drill blade according to claim 1, is characterized in that: the quantity of described connecting hole is two.
4. ladder apex point shovel drill blade according to claim 1, is characterized in that: the quantity of described locating slot is one, and this locating slot is positioned at the middle position of the bottom of cutter hub.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210561284.2A CN103008733B (en) | 2012-12-21 | 2012-12-21 | A kind of ladder apex point shovel drill blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210561284.2A CN103008733B (en) | 2012-12-21 | 2012-12-21 | A kind of ladder apex point shovel drill blade |
Publications (2)
| Publication Number | Publication Date |
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| CN103008733A CN103008733A (en) | 2013-04-03 |
| CN103008733B true CN103008733B (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210561284.2A Active CN103008733B (en) | 2012-12-21 | 2012-12-21 | A kind of ladder apex point shovel drill blade |
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| CN (1) | CN103008733B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108927555A (en) * | 2018-09-11 | 2018-12-04 | 浙江甬岭数控刀具有限公司 | Indexable depth drill |
| CN112676615A (en) * | 2020-12-16 | 2021-04-20 | 浙江坤博精工科技股份有限公司 | Anti-deviation spade drill |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202097441U (en) * | 2011-06-07 | 2012-01-04 | 李仕清 | Combined cutting drill cutter head |
| CN202411491U (en) * | 2011-12-02 | 2012-09-05 | 朱红梅 | Spade drill blade |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10328918A (en) * | 1997-05-28 | 1998-12-15 | Ngk Spark Plug Co Ltd | Drill and cutting part thereof |
| US5957635A (en) * | 1998-08-21 | 1999-09-28 | Allied Machine & Engineering Corp. | Drill tool assembly |
| US6371702B1 (en) * | 1999-08-18 | 2002-04-16 | Kennametal Pc Inc. | Spade blade drill and method of making |
| US20070036622A1 (en) * | 2005-08-12 | 2007-02-15 | Yg-1 Co., Ltd. | Spade drill insert |
| WO2009093764A1 (en) * | 2008-01-22 | 2009-07-30 | Yg-1 Co., Ltd | Drill insert |
| CN202356683U (en) * | 2011-12-02 | 2012-08-01 | 郁其娟 | Blade of high-speed steel spade drill |
| CN203003221U (en) * | 2012-12-21 | 2013-06-19 | 浙江欣兴工具有限公司 | Stepped drill point spade drill blade |
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2012
- 2012-12-21 CN CN201210561284.2A patent/CN103008733B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202097441U (en) * | 2011-06-07 | 2012-01-04 | 李仕清 | Combined cutting drill cutter head |
| CN202411491U (en) * | 2011-12-02 | 2012-09-05 | 朱红梅 | Spade drill blade |
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| CN103008733A (en) | 2013-04-03 |
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Address after: 314301 No. 699, Yanshan Road, liuliji Town, Shupu Town, Haiyan County, Jiaxing City, Zhejiang Province Patentee after: Zhejiang Xinxing Tools Co.,Ltd. Address before: No. 33, Huanbei Road, liuliji Town, Shupu Town, Haiyan County, Jiaxing City, Zhejiang Province Patentee before: ZHEJIANG XINXING TOOLS Co.,Ltd. |