CN204621175U - The two screw lock crown drill bit in V-arrangement location - Google Patents
The two screw lock crown drill bit in V-arrangement location Download PDFInfo
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- CN204621175U CN204621175U CN201520347465.4U CN201520347465U CN204621175U CN 204621175 U CN204621175 U CN 204621175U CN 201520347465 U CN201520347465 U CN 201520347465U CN 204621175 U CN204621175 U CN 204621175U
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Abstract
The utility model relates to the two screw lock crown drill bit in V-arrangement location, and comprise drilling rod, crown blade, housing screw and screw plug, drilling rod comprises operate portions, neck and shank, and operate portions is provided with helical form chip area, and the knife back is provided with Cooling Holes vertically; Shank is cylindrical shape, is provided with single straight Cooling Holes vertically; Neck is provided with the through hole be connected with the single straight Cooling Holes of shank by the Cooling Holes of the operate portions knife back, and through hole is provided with coupled logical radial screw bore, and radial screw bore place is furnished with screw plug; The end face of drilling rod operate portions is provided with in order to the V-type locating slot to hat teeth cutter blade location, and V-type locating slot both sides are provided with the fastening screw screwing housing screw, and crown blade is anchored in V-type locating slot by housing screw.Spiral inner-cooling structure, reduces drilling rod core thick under not reducing the prerequisite of drilling rod intensity, contribute to increasing chip space; V-arrangement location structure contact surface is large, and positioning precision is high; Crown blade groove is convenient to convenient clamping in the subsequent techniques such as face coat.
Description
Technical field
The utility model relates to the two screw lock crown drill bit in a kind of V-arrangement location, belongs to high-speed and high-efficiency cutting tool technical field.
Background technology
Crown drill bit is that head adopts carbide alloy or other high performance material, and drilling rod adopts a kind of combination type drill bit of alloy steel material, has the advantages such as use cost is low, the range of work is large.
At present, the head of crown drill bit and drilling rod have multiple combination mode.Such as there are " pin is located, and screw runs through locking ", " broken line groove is located, positive left-hand thread screw lock ", " open pin location, non-screw rotates clamping " etc. all multi-form.
Utility model content
The purpose of this utility model overcomes the deficiency that prior art exists, and provides that a kind of structure is simple, the two screw lock crown drill bit in reliable clamping, V-arrangement with low cost location.
The purpose of this utility model is achieved through the following technical solutions:
The two screw lock crown drill bit in V-arrangement location, feature is: comprise drilling rod, crown blade, housing screw and screw plug, described drilling rod comprises the operate portions, neck and the shank that are connected mutually successively centered by same central axis, described operate portions is provided with helical form chip area, entity part outside chip area is the knife back, and the knife back is provided with Cooling Holes vertically; Described shank is cylindrical shape, is provided with single straight Cooling Holes vertically; Described neck is the assembly that cone and cylinder are formed, and neck is provided with the through hole be connected with the single straight Cooling Holes of shank by the Cooling Holes of the operate portions knife back, and through hole is provided with coupled logical radial screw bore, and radial screw bore place is furnished with screw plug; The end face of described drilling rod operate portions is provided with in order to the V-type locating slot to hat teeth cutter blade location, and V-type locating slot both sides are provided with the fastening screw screwing housing screw;
The cutter blade of described crown blade removes its parallel portion by a cylinder, cutter blade has ground chip area, cutter blade right-hand member is removed V-shaped part and is formed V-arrangement angle, match with the V-type locating slot of drilling rod operate portions, cutter blade left end is provided with the cutting edge be made up of chisel edge, transitional edges and main cutting edge, the intersection of chip area and rear knife face forms main cutting edge, and after two, the intersection of knife face forms chisel edge, and between main cutting edge and chisel edge, mill has transitional edges; The upper and lower face of cylinder of cutter blade grinds unnecessary part and retain a section spiral line formation seamed edge, cutter blade offers two for installing half shoulder hole of housing screw;
Described crown blade is anchored on drilling rod by housing screw.
Further, the above-mentioned two screw lock crown drill bit in V-arrangement location, wherein, the described operate portions knife back is provided with two Cooling Holes vertically.
Further, the above-mentioned two screw lock crown drill bit in V-arrangement location, wherein, the Cooling Holes of the described operate portions knife back is in the axial direction in the shape of a spiral; The lead of screw of helical form Cooling Holes is identical with the lead of screw of chip area.
Further, the above-mentioned two screw lock crown drill bit in V-arrangement location, wherein, the aperture of the Cooling Holes of the described operate portions knife back is less than the aperture of the single straight Cooling Holes of shank.
Further, the above-mentioned two screw lock crown drill bit in V-arrangement location, wherein, the Cooling Holes of the described operate portions knife back is near chip area position.
Further, the above-mentioned two screw lock crown drill bit in V-arrangement location, wherein, the Cooling Holes of the described operate portions knife back forms cooling liquid outlet in the left side place of operate portions.
Further, the above-mentioned two screw lock crown drill bit in V-arrangement location, wherein, the inscribed circle of described knife back central authorities is that drilling rod core is thick, and the Cooling Holes on the knife back is thick away from drilling rod core in diametric(al).
Further, the above-mentioned two screw lock crown drill bit in V-arrangement location, wherein, the angle of the V-type locating surface of described V-type locating slot is 90 ° ~ 120 °.
Again further, the above-mentioned two screw lock crown drill bit in V-arrangement location, wherein, the cutter blade right-hand member of described crown blade is provided with groove.
Again further, the above-mentioned two screw lock crown drill bit in V-arrangement location, wherein, in the shape of a spiral, helical angle is 15 ° ~ 30 ° to described seamed edge.
The substantive distinguishing features that technical solutions of the utility model are outstanding and significant progress are mainly reflected in:
1. the drilling rod of the two screw lock crown drill bit in the utility model V-arrangement location possesses spiral inner-cooling structure, and it is thick that double helix inner-cooling structure can reduce drilling rod core under the prerequisite not reducing drilling rod intensity, contributes to increasing chip space, reduces chip removal resistance; Double helix inner-cooling structure contributes to the optimization space of improving drilling rod chip removal flute profile, namely can design different flute profiles for different machined materials;
2. drilling rod and crown blade adopt V-arrangement location structure, and V-arrangement location structure is simple, and production precision is easy to ensure, V-arrangement location structure contact surface is large, and positioning precision is high, and structural reliability is good;
3. drilling rod adopts segmentation inner-cooling structure, and shank is single straight hole, and aperture is slightly large; Working portion is double helical bore, and aperture is slightly little, through by the through hole of neck, and neck connecting hole seals through screw plug;
4. crown blade has groove structure, is convenient to convenient clamping in the subsequent techniques such as face coat;
5. two screw lock structure, reliable clamping, auxiliary screw is many, and cost is low.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solutions of the utility model are described further:
Fig. 1: the decomposition texture schematic diagram of the two screw lock crown drill bit in V-arrangement location;
Fig. 2: the schematic front view of drilling rod;
Fig. 3: the schematic side view of drilling rod;
The A-A cross-sectional schematic of Fig. 4: Fig. 2;
The D-D cross-sectional schematic of Fig. 5: Fig. 2;
The B-B cross-sectional schematic of Fig. 6: Fig. 3;
Fig. 7: the connection diagram of crown blade and drilling rod;
Fig. 8: the schematic front view of crown blade;
Fig. 9: schematic diagram is looked on a left side for crown blade;
Figure 10: the schematic diagram of crown blade seamed edge helical angle.
Detailed description of the invention
As shown in Figure 1, the two screw lock crown drill bit in V-arrangement location, comprise drilling rod 1, crown blade 2, two housing screws 3 and screw plug 4, as Fig. 2, Fig. 4, Fig. 5, drilling rod comprises the operate portions 5, neck 6 and the shank 7 that are connected mutually successively centered by same central axis, operate portions 5 is provided with helical form chip area 8, chip area 8 operationally plays and holds bits and chip removal effect, entity part outside chip area 8 is the knife back 9, the inscribed circle of the knife back 9 central authorities is the thick H of drilling rod core, the thick diameter of usual core is larger, and intensity is higher, and during work, feeding is faster; But the thick diameter of core is less, the space of chip area 8 is less, and chip removal ability is poorer, restricts the further raising of feed speed on the contrary; The knife back 9 is provided with two Cooling Holes 10 vertically, and Cooling Holes 10 is in the axial direction in the shape of a spiral, identical with the lead of screw of chip area 8; The Cooling Holes 10 of the operate portions knife back is near chip area position, and Cooling Holes 10 is thick away from drilling rod core in diametric(al), and drilling rod core is thick just can be reduced as far as possible and not affect intensity.
Shank 7, in cylindrical shape, is provided with single straight Cooling Holes 12, vertically in order to be sent on cutter by the cooling fluid of lathe cooling system; The aperture of the single straight Cooling Holes 12 of shank is greater than the aperture of the Cooling Holes 10 of the operate portions knife back; Shank 7 is one section of cylinder that circle precision is higher, clamps shank to transmit machine power during use by handle of a knife, makes cutter rotate and possess cutting power.
Neck 6 is the assembly that cone and cylinder are formed, and operationally, chip can be avoided to splash and strike handle of a knife and machine tool chief axis, play a protective role; Neck is provided with the through hole 13 be connected with the single straight Cooling Holes of shank by the Cooling Holes of the operate portions knife back, can provide cooling fluid incessantly; Through hole 13 is provided with coupled logical radial screw bore, and radial screw bore place is furnished with screw plug 4, avoids cooling fluid to reveal; The Cooling Holes of the operate portions knife back forms cooling liquid outlet 11 in the left side place of operate portions, provides cooling fluid operationally to crown blade 2.
As Fig. 3, Fig. 6, Fig. 7, the end face of drilling rod operate portions is provided with in order to the V-type locating slot 14 to hat teeth cutter blade location, and the angle of the V-type locating surface of V-type locating slot is 90 ° ~ 120 °, and V-type locating slot both sides are provided with the fastening screw 15 screwing housing screw 3.When assembling, the hat axis of half shoulder hole of teeth cutter blade 2 and the axis coaxle of the fastening screw 15 of drilling rod, housing screw 3 screws in fastening screw 15, is closely fixed on drilling rod 1 by crown blade 2.
As shown in Figure 8, Figure 9, the cutter blade of crown blade 2 removes its parallel portion by a cylinder, cutter blade grinds chip area 27, cutter blade right-hand member is removed V-shaped part and is formed V-arrangement angle, angle is 90 ~ 120 °, cutter blade right-hand member is provided with groove 35, and groove 35 is convenient to convenient clamping in the subsequent techniques such as face coat.Cutter blade left end is provided with the cutting edge be made up of chisel edge 28, transitional edges 29 and main cutting edge 30, chip area 27 forms main cutting edge 30 with the intersection of rear knife face, the angle formed between main cutting edge is drift angle 31, angle is 120 ~ 140 °, can adjust according to the difference of machined material, after two, the intersection of knife face forms chisel edge 28, grinds transitional edges 29 between main cutting edge 30 and chisel edge 28; The upper and lower face of cylinder of cutter blade grinds unnecessary part and retain a section spiral line formation seamed edge 33, cutter blade offers two for installing half shoulder hole 16 of housing screw, and the installation for blade is fastening.
As Figure 10, seamed edge 33 is spiral faces of cylinder with one fixed width, operationally be used for the diameter of determining hole, its helical angle 34 is typically designed to 15 ° ~ 30 °, helical angle 34 is larger, and the cutting ability of crown blade is better, and helical angle 34 is less, the intensity of crown blade is higher, is more suitable for the processing of high hard material.
Crown blade has V-arrangement location structure, and V-arrangement location structure is fairly simple, and production precision is easy to ensure.V-arrangement location structure contact surface is comparatively large, and positioning precision is high, and structural reliability is good.Crown blade has the locking mechanism of half shoulder hole, two screw lock structure, and auxiliary screw is many, and cost is very low.Crown blade has groove structure, is convenient to convenient clamping in the subsequent techniques such as face coat.
The two screw lock crown drilling rod in V-arrangement location adopts V-arrangement location structure, and V-arrangement location structure is simple, and production precision is easy to ensure, V-arrangement location structure contact surface is large, and positioning precision is high, and structural reliability is good.Drilling rod is segmentation inner-cooling structure, and shank is single straight hole, and aperture is slightly large; Working portion is double helical bore, and aperture is slightly little, through by the through hole of neck, and neck connecting hole seals through screw plug.Two screw lock structure, auxiliary screw is many, and cost is low.
In sum, the drilling rod of the two screw lock crown drill bit in the utility model V-arrangement location possesses spiral inner-cooling structure, and it is thick that double helix inner-cooling structure can reduce drilling rod core under the prerequisite not reducing drilling rod intensity, contributes to increasing chip space, reduces chip removal resistance.Double helix inner-cooling structure contributes to the optimization space of improving drilling rod chip removal flute profile, namely can design different flute profiles for different machined materials.
It is to be understood that: the above is only preferred embodiment of the present utility model; for those skilled in the art; under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
- The two screw lock crown drill bit in 1.V shape location, it is characterized in that: comprise drilling rod, crown blade, housing screw and screw plug, described drilling rod comprises the operate portions, neck and the shank that are connected mutually successively centered by same central axis, described operate portions is provided with helical form chip area, entity part outside chip area is the knife back, and the knife back is provided with Cooling Holes vertically; Described shank is cylindrical shape, is provided with single straight Cooling Holes vertically; Described neck is the assembly that cone and cylinder are formed, and neck is provided with the through hole be connected with the single straight Cooling Holes of shank by the Cooling Holes of the operate portions knife back, and through hole is provided with coupled logical radial screw bore, and radial screw bore place is furnished with screw plug; The end face of described drilling rod operate portions is provided with in order to the V-type locating slot to hat teeth cutter blade location, and V-type locating slot both sides are provided with the fastening screw screwing housing screw;The cutter blade of described crown blade removes its parallel portion by a cylinder, cutter blade has ground chip area, cutter blade right-hand member is removed V-shaped part and is formed V-arrangement angle, match with the V-type locating slot of drilling rod operate portions, cutter blade left end is provided with the cutting edge be made up of chisel edge, transitional edges and main cutting edge, the intersection of chip area and rear knife face forms main cutting edge, and after two, the intersection of knife face forms chisel edge, and between main cutting edge and chisel edge, mill has transitional edges; The upper and lower face of cylinder of cutter blade grinds unnecessary part and retain a section spiral line formation seamed edge, cutter blade offers two for installing half shoulder hole of housing screw;Described crown blade is anchored on drilling rod by housing screw.
- 2. the two screw lock crown drill bit in V-arrangement location according to claim 1, is characterized in that: the described operate portions knife back is provided with two Cooling Holes vertically.
- 3. the two screw lock crown drill bit in V-arrangement location according to claim 1 and 2, is characterized in that: the Cooling Holes of the described operate portions knife back in the axial direction in the shape of a spiral.
- 4. the two screw lock crown drill bit in V-arrangement location according to claim 3, is characterized in that: the lead of screw of described helical form Cooling Holes is identical with the lead of screw of chip area.
- 5. the two screw lock crown drill bit in V-arrangement location according to claim 1 and 2, is characterized in that: the aperture of the Cooling Holes of the described operate portions knife back is less than the aperture of the single straight Cooling Holes of shank.
- 6. the two screw lock crown drill bit in V-arrangement location according to claim 1 and 2, is characterized in that: the Cooling Holes of the described operate portions knife back is near chip area position.
- 7. the two screw lock crown drill bit in V-arrangement location according to claim 1, is characterized in that: the Cooling Holes of the described operate portions knife back forms cooling liquid outlet in the left side place of operate portions.
- 8. the two screw lock crown drill bit in V-arrangement location according to claim 1, is characterized in that: the angle of the V-type locating surface of described drilling rod operate portions V-type locating slot is 90 ° ~ 120 °.
- 9. the two screw lock crown drill bit in V-arrangement location according to claim 1, is characterized in that: the cutter blade right-hand member of described crown blade is provided with groove.
- 10. the two screw lock crown drill bit in V-arrangement location according to claim 1, is characterized in that: in the shape of a spiral, helical angle is 15 ° ~ 30 ° to described seamed edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520347465.4U CN204621175U (en) | 2015-05-26 | 2015-05-26 | The two screw lock crown drill bit in V-arrangement location |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520347465.4U CN204621175U (en) | 2015-05-26 | 2015-05-26 | The two screw lock crown drill bit in V-arrangement location |
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| CN204621175U true CN204621175U (en) | 2015-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520347465.4U Active CN204621175U (en) | 2015-05-26 | 2015-05-26 | The two screw lock crown drill bit in V-arrangement location |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104827094A (en) * | 2015-05-26 | 2015-08-12 | 苏州阿诺精密切削技术股份有限公司 | V-shaped positioning double-screw locking tooth crown drill bit |
| CN105171062A (en) * | 2015-09-30 | 2015-12-23 | 苏州阿诺精密切削技术股份有限公司 | Double-bolt locking crown drill rod in V-shaped positioning groove |
| CN105171060A (en) * | 2015-09-30 | 2015-12-23 | 苏州阿诺精密切削技术股份有限公司 | Tooth crown blade locked through double screws in V-shaped positioning groove |
| CN105171061A (en) * | 2015-10-09 | 2015-12-23 | 苏州阿诺精密切削技术股份有限公司 | Tooth crown drill bit locked through two screws in V-shaped positioning groove |
| CN105522201A (en) * | 2016-01-25 | 2016-04-27 | 台州华达工量具制造有限公司 | Drill with replaceable tool bit |
| CN108480722A (en) * | 2018-06-11 | 2018-09-04 | 常熟市磊王合金工具有限公司 | A kind of interior cold subland drill of shank grooving lap guard bits |
-
2015
- 2015-05-26 CN CN201520347465.4U patent/CN204621175U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104827094A (en) * | 2015-05-26 | 2015-08-12 | 苏州阿诺精密切削技术股份有限公司 | V-shaped positioning double-screw locking tooth crown drill bit |
| CN105171062A (en) * | 2015-09-30 | 2015-12-23 | 苏州阿诺精密切削技术股份有限公司 | Double-bolt locking crown drill rod in V-shaped positioning groove |
| CN105171060A (en) * | 2015-09-30 | 2015-12-23 | 苏州阿诺精密切削技术股份有限公司 | Tooth crown blade locked through double screws in V-shaped positioning groove |
| CN105171061A (en) * | 2015-10-09 | 2015-12-23 | 苏州阿诺精密切削技术股份有限公司 | Tooth crown drill bit locked through two screws in V-shaped positioning groove |
| CN105522201A (en) * | 2016-01-25 | 2016-04-27 | 台州华达工量具制造有限公司 | Drill with replaceable tool bit |
| CN108480722A (en) * | 2018-06-11 | 2018-09-04 | 常熟市磊王合金工具有限公司 | A kind of interior cold subland drill of shank grooving lap guard bits |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Suzhou City, Jiangsu province 215021 Industrial Park Kuatang subarea Baoda Road No. 8 Patentee after: Suzhou Ahno Precision Cutting Technology Co., Ltd. Address before: Suzhou City, Jiangsu province 215021 Industrial Park Kuatang subarea Baoda Road No. 8 Patentee before: Suzhou Ahno Cutting Tool Technology Co., Ltd. |