CN204953983U - Two screw locking crown drill bits in V type constant head tank - Google Patents
Two screw locking crown drill bits in V type constant head tank Download PDFInfo
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- CN204953983U CN204953983U CN201520779357.4U CN201520779357U CN204953983U CN 204953983 U CN204953983 U CN 204953983U CN 201520779357 U CN201520779357 U CN 201520779357U CN 204953983 U CN204953983 U CN 204953983U
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- blade
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- drilling rod
- type locating
- screw
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Abstract
The utility model relates to a two screw locking crown drill bits in V type constant head tank, including drilling rod, crown blade and housing screw, the axis location of drilling rod is equipped with through and through owner and cools off the hole, and the cold junction constructs in the left end of work portion is equipped with two branches cooling holes, constitutes Y shape, the terminal surface of drilling rod work portion is equipped with the blade mounting groove, and the bottom of blade mounting groove is for being used for to the V type locating surface of hat tooth blade location, and the both sides of blade mounting groove are blade installation face, is provided with perpendicularly in every side blade installation to be used for joining in marriage soon the fastening screw of housing screw, the right -hand member of crown blade is equipped with for the V type locating surface that matches with drilling rod work portion locating surface, and the crown blade is equipped with the shoulder hole that is used for installing the housing screw, the axis perpendicular to blade installation face of shoulder hole, and the position of shoulder hole is relative with the position of fastening screw, the crown blade passes through the housing screw and fastens on the drilling rod. Adopt the inslot to lock into, carry the joint strength of high tooth hat blade and cutter body.
Description
Technical field
The utility model relates to two screw lock crown drill bit in a kind of V-type locating slot.
Background technology
Crown drill bit is that head adopts carbide alloy or other high performance materials, and drilling rod adopts a kind of combination type drill bit of alloy steel material.There is 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 " locking is run through in pin location, screw ", " broken line groove location, positive left-hand thread screw lock ", " location, intersection V-arrangement face, post-tensioning screw lock ", " open pin location, non-screw rotate clamping " etc. all multi-form.These location and locking mode respectively have feature, but most complex structure, production cost is higher.
Utility model content
The purpose of this utility model is the deficiency overcoming prior art existence, provides two screw lock crown drill bit in a kind of V-type locating slot.
The purpose of this utility model is achieved through the following technical solutions:
Two screw lock crown drill bit in V-type locating slot, feature is: comprise drilling rod, crown blade and housing screw, 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, form seamed edge near the position of chip area, seamed edge is the helicoid of a helical pitch identical with chip area; Described shank is cylindrical shape; Described neck is the assembly that cone and cylinder are formed; The axial location of described drilling rod is provided with straight-through main Cooling Holes, and the left end in operate portions is provided with two points of Cooling Holes, and two points of Cooling Holes communicate with main Cooling Holes and form Y shape inner-cooling structure; The end face of described drilling rod operate portions is provided with blade installation slot, the bottom of blade installation slot is in order to the V-type locating surface to hat teeth cutter blade location, the both sides of blade installation slot are blade installed surface, and every side blade installed surface is vertically installed with the fastening screw screwing housing screw;
The right-hand member of described crown blade is provided with the V-type locating surface in order to match with drilling rod operate portions locating surface, the left end of crown blade 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, after two, the intersection of knife face forms chisel edge, and between main cutting edge and chisel edge, mill has transitional edges; Crown blade is provided with crown seamed edge in diametric(al), crown seamed edge has the face of cylinder of width in the shape of a spiral, crown blade is provided with the shoulder hole for installing housing screw, and the axes normal of shoulder hole is in blade installed surface, and the position of shoulder hole is relative with the position of fastening screw;
Described crown blade is anchored on drilling rod by housing screw.
Further, two screw lock crown drill bit in above-mentioned V-type locating slot, wherein, the inscribed circle of described knife back central authorities is that drilling rod core is thick, the diameter of main Cooling Holes be drilling rod core thick 1/3 ~ 1/2.
Further, two screw lock crown drill bit in above-mentioned V-type locating slot, wherein, described two points of Cooling Holes form two cooling liquid outlets in the left side place of operate portions.
Further, two screw lock crown drill bit in above-mentioned V-type locating slot, wherein, the angle of described V-type locating surface is 90 ° ~ 140 °.
Again further, two screw lock crown drill bit in above-mentioned V-type locating slot, wherein, the angle formed between main cutting edge is drift angle, and angle is 120 ~ 140 °.
Again further, two screw lock crown drill bit in above-mentioned V-type locating slot, wherein, the ladder angle of described shoulder hole is 40 ° ~ 90 °.
Substantive distinguishing features and the progress of technical solutions of the utility model are mainly reflected in:
In V-type locating slot, two screw lock crown drill bit adopts V-arrangement location structure, and in V-type locating slot, two screw lock crown drill bit adopts cold access structure in Y shape, and more simple compared with the structure of path cold in double helix, production cost is lower.V-arrangement location has that structure is simple, production precision is easy to the features such as guarantee.The production cost of crown blade and drill bit knife bar can be reduced.In V-type locating slot, the blade contact area of two screw lock crown drill bit is large, and bearing capacity is strong, clamping good reliability, is applicable to roughing feed and cuts.Adopt in groove and be locked into, can further improve the bonding strength of crown blade and cutter hub, contribute to improving the bearing capacity of drill bit in high feeding situation, and contribute to the reliability of the axiality ensureing blade and knife bar shank.
Accompanying drawing explanation
Fig. 1: the schematic front view of the utility model drill bit;
Fig. 2: schematic diagram is looked on a left side for the utility model drill bit;
The C-C cross-sectional schematic of Fig. 3: Fig. 2;
Fig. 4: the schematic front view of drilling rod;
Fig. 5: schematic diagram is looked on a left side for drilling rod;
Fig. 6: the enlarged diagram of drilling rod operate portions left end;
The A-A cross-sectional schematic of Fig. 7: Fig. 4;
The B-B cross-sectional schematic of Fig. 8: Fig. 5;
Fig. 9: on drilling rod, fastening screw arranges schematic diagram;
Figure 10: the schematic front view of crown blade;
Figure 11: schematic diagram is looked on a left side for crown blade;
The D-D cross-sectional schematic of Figure 12: Figure 10;
Figure 13: the partial schematic diagram of crown blade seamed edge helical angle.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical solutions of the utility model are described further:
As shown in figures 1-4, two screw lock crown drill bit in V-type locating slot, comprise drilling rod 1, crown blade 2 and housing screw 3, drilling rod 1 comprises the operate portions 5, neck 6 and the shank 7 that are connected mutually successively centered by same central axis, operate portions is provided with helical form chip area 8, entity part outside chip area 8 is the knife back 9, and form seamed edge 4 near the position of chip area, seamed edge 4 is the helicoid of a helical pitch identical with chip area; Shank 7 is in cylindrical shape; Neck 6 is the assembly that cone and cylinder are formed.
As also shown in e.g. figs. 4-7, the axial location of drilling rod is provided with straight-through main Cooling Holes 10, left end in operate portions 5 is provided with two points of Cooling Holes 11, two points of Cooling Holes 11 communicate with main Cooling Holes 10 and form Y shape inner-cooling structure, and two points of Cooling Holes form two cooling liquid outlets 12 in the left side place of operate portions; The end face of drilling rod operate portions 5 is provided with blade installation slot, the bottom of blade installation slot is in order to the V-type locating surface 14 to hat teeth cutter blade location, the angle of V-type locating surface 14 is 90 ° ~ 140 °, as shown in Figure 8, Figure 9, the both sides of blade installation slot are blade installed surface, and every side blade installed surface is vertically installed with the fastening screw 15 screwing housing screw.The inscribed circle of knife back central authorities is drilling rod core thick 13, and the diameter of main Cooling Holes 10 is 1/3 ~ 1/2 of drilling rod core thick 13.
As shown in Figure 10 ~ 12, the right-hand member of crown blade is provided with the V-type locating surface 16 in order to match with drilling rod operate portions locating surface, the angle of V-type locating surface 16 is 90 ° ~ 140 °, the left end of crown blade is provided with the cutting edge be made up of chisel edge 17, transitional edges 18 and main cutting edge 19, the intersection of chip area and rear knife face forms main cutting edge 19, the angle formed between main cutting edge is drift angle 20, angle is 120 ~ 140 °, after two, the intersection of knife face forms chisel edge 17, and between main cutting edge and chisel edge, mill has transitional edges 18; Crown blade is provided with crown seamed edge 21 in diametric(al), crown seamed edge 21 has the face of cylinder of width in the shape of a spiral, crown blade is provided with the shoulder hole 23 for installing housing screw, the axes normal of shoulder hole 23 is in blade installed surface, the position of shoulder hole is relative with the position of fastening screw 15, and the ladder angle 24 of shoulder hole is 40 ° ~ 90 °.
Crown blade 2 is anchored on drilling rod 1 by housing screw 3.
As Figure 13, the helical angle 22 of crown seamed edge 21 is 15 ° ~ 30 °, and matches with the spiral angle of chip area 8, and usually, helical angle 22 is larger, and the cutting ability of crown blade 2 is better; Helical angle 22 is less, and the intensity of crown blade 2 is higher, is more suitable for the processing of high hard material.
In V-type locating slot, two screw lock crown drill bit adopts V-arrangement location structure, and in V-type locating slot, two screw lock crown drill bit adopts cold access structure in Y shape, and more simple compared with the structure of path cold in double helix, production cost is lower.V-arrangement location has that structure is simple, production precision is easy to the features such as guarantee.The production cost of crown blade and drill bit knife bar can be reduced.In V-type locating slot, the blade contact area of two screw lock crown drill bit is large, and bearing capacity is strong, clamping good reliability, is applicable to roughing feed and cuts.In V-type locating slot, two screw lock crown drill bit, adopts in groove and is locked into, can further improve the bonding strength of crown blade and cutter hub, contributes to the axiality ensureing blade and knife bar shank.
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 (6)
- Two screw lock crown drill bit in 1.V type locating slot, it is characterized in that: comprise drilling rod, crown blade and housing screw, 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, form seamed edge near the position of chip area, seamed edge is the helicoid of a helical pitch identical with chip area; Described shank is cylindrical shape; Described neck is the assembly that cone and cylinder are formed; The axial location of described drilling rod is provided with straight-through main Cooling Holes, and the left end in operate portions is provided with two points of Cooling Holes, and two points of Cooling Holes communicate with main Cooling Holes and form Y shape inner-cooling structure; The end face of described drilling rod operate portions is provided with blade installation slot, the bottom of blade installation slot is in order to the V-type locating surface to hat teeth cutter blade location, the both sides of blade installation slot are blade installed surface, and every side blade installed surface is vertically installed with the fastening screw screwing housing screw;The right-hand member of described crown blade is provided with the V-type locating surface in order to match with drilling rod operate portions locating surface, the left end of crown blade 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, after two, the intersection of knife face forms chisel edge, and between main cutting edge and chisel edge, mill has transitional edges; Crown blade is provided with crown seamed edge in diametric(al), crown seamed edge has the face of cylinder of width in the shape of a spiral, crown blade is provided with the shoulder hole for installing housing screw, and the axes normal of shoulder hole is in blade installed surface, and the position of shoulder hole is relative with the position of fastening screw;Described crown blade is anchored on drilling rod by housing screw.
- 2. two screw lock crown drill bit in V-type locating slot according to claim 1, is characterized in that: the inscribed circle of described knife back central authorities is that drilling rod core is thick, the diameter of main Cooling Holes be drilling rod core thick 1/3 ~ 1/2.
- 3. two screw lock crown drill bit in V-type locating slot according to claim 1, is characterized in that: described two points of Cooling Holes form two cooling liquid outlets in the left side place of operate portions.
- 4. two screw lock crown drill bit in V-type locating slot according to claim 1, is characterized in that: the angle of described V-type locating surface is 90 ° ~ 140 °.
- 5. two screw lock crown drill bit in V-type locating slot according to claim 1, it is characterized in that: the angle formed between main cutting edge is drift angle, angle is 120 ~ 140 °.
- 6. two screw lock crown drill bit in V-type locating slot according to claim 1, is characterized in that: the ladder angle of described shoulder hole is 40 ° ~ 90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520779357.4U CN204953983U (en) | 2015-10-09 | 2015-10-09 | Two screw locking crown drill bits in V type constant head tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520779357.4U CN204953983U (en) | 2015-10-09 | 2015-10-09 | Two screw locking crown drill bits in V type constant head tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204953983U true CN204953983U (en) | 2016-01-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520779357.4U Active CN204953983U (en) | 2015-10-09 | 2015-10-09 | Two screw locking crown drill bits in V type constant head tank |
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| Country | Link |
|---|---|
| CN (1) | CN204953983U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112605440A (en) * | 2021-01-08 | 2021-04-06 | 苏州阿诺精密切削技术有限公司 | Novel draw formula crown tool bit after cooling |
-
2015
- 2015-10-09 CN CN201520779357.4U patent/CN204953983U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112605440A (en) * | 2021-01-08 | 2021-04-06 | 苏州阿诺精密切削技术有限公司 | Novel draw formula crown tool bit after cooling |
| CN112605440B (en) * | 2021-01-08 | 2024-05-28 | 苏州阿诺精密切削技术有限公司 | Novel cooling back-pull type tooth crown cutter head |
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Legal Events
| 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. |