CN109590518A - Self-locking fast replacing drill - Google Patents
Self-locking fast replacing drill Download PDFInfo
- Publication number
- CN109590518A CN109590518A CN201710919910.3A CN201710919910A CN109590518A CN 109590518 A CN109590518 A CN 109590518A CN 201710919910 A CN201710919910 A CN 201710919910A CN 109590518 A CN109590518 A CN 109590518A
- Authority
- CN
- China
- Prior art keywords
- spacing face
- cone
- cutter head
- cutter hub
- positive round
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/02—Devices for removing scrap from the cutting teeth of circular or non-circular cutters
Abstract
There are positive round cone in self-locking fast replacing drill, including cutter hub and cutter head, the rear end of cutter head, and diameter is gradually reduced positive round cone from back to front, and there is normal cone inner cavity in the front end of cutter hub, and positive round cone and normal cone inner cavity are interference fitted；There are cross spacing face A and longitudinal spacing face A on cutter head；There are cross spacing face B and longitudinal spacing face B on cutter hub；There is chip space B on cutter hub, there is chip space A on cutter head；When cutter head is installed in place in cutter hub, longitudinal spacing face A is abutted with longitudinal spacing face B, and cross spacing face A is abutted with cross spacing face B, and chip space A and chip space B are continuous.Cutter head can be changed quickly in the present invention, and high-efficient, cutter hub is used multiple times, save the cost；It screws in rear blade and cutter hub is interference fitted, drill bit will receive the power counterclockwise that a work piece is given in drilling, in addition the effect in cross spacing face and longitudinal spacing face, is bonded cutter head always with cutter hub, reach self-locking clamping, will not fall off or loosen always in drilling.
Description
Technical field
The present invention relates to a kind of metal cutting process cutters, especially drill bit.
Background technique
Existing drill bit, cutter head and cutter hub are an entirety, after cutter head passivation, need to change on entire drill bit, increase
The cost of enterprise.
In addition, requiring increasingly with the fast development of field of machining efficient, high life, high-precision cutter
Sternly, it is a big development trend that high-speed steel tool is replaced by hard alloy cutter, but due to the toughness of hard alloy cutter compared with
Difference limits its application in certain manufacture fields (especially tapping processing).
Summary of the invention
The present invention is intended to provide self-locking fast replacing drill, cutter head is connect with cutter hub using clamping mode, can be with quick-replaceable knife
Head, cutter hub can be used for multiple times.
In order to achieve the above object, the technical solution adopted by the present invention:
There are the positive round cone of coaxial arrangement, normal cone in self-locking fast replacing drill, including cutter hub and cutter head, the rear end of the cutter head
Diameter is gradually reduced body from back to front, and there is a normal cone inner cavity of coaxial arrangement in the front end of the cutter hub, the positive round cone with just
Circular cone inner cavity interference fit；
There is limiting section A on the cutter head, having the limiting section B being adapted to limiting section A, limiting section A on cutter hub includes laterally limiting
Plane A and longitudinal spacing face A, cross spacing face A are flushed with the front end face of positive round cone, the rear end of longitudinal spacing face A and transverse direction
Confined planes A intersects vertically；The limiting section B includes cross spacing face B and longitudinal spacing face B；There is helix circular on cutter hub
Chip space B, the chip space A for having helix circular on cutter head；
There are two limiting section A and limiting section B is equal, two limiting section A are centered on the axis of cutter head between circumferencial direction etc.
Every setting, two limiting section B are arranged centered on the axis of cutter hub in circumferencial direction at equal intervals；Chip space B has with chip space A
Two；
When cutter head is installed in place in cutter hub, 1 longitudinal spacing face A has and only abuts with 1 longitudinal spacing face B, 1
Cross spacing face A has and only abuts with 1 cross spacing face B, and a chip space A has and only continuous with a chip space B.
Further, two chip space A form four seamed edges in positive round cone, respectively along the radial direction of four seamed edges
Grinding a part forms four inclined-planes.
Wherein, positive round cone is identical as the taper of normal cone inner cavity.
Further, the cone angle of positive round cone and normal cone inner cavity is 6 °.
It is further preferred that positive round cone and the fit tolerance of normal cone inner cavity are 0.002-0.005.
Further, the diameter of positive round cone front end is 9.455mm, and the length of positive round cone is 8mm；Normal cone inner cavity
Length is 8mm, and the diameter of normal cone inner cavity front end is 9.45mm.
Further, cutter hub material is steel alloy, and the material of cutter head is hard alloy.
Further, there is the cylindrical body of coaxial arrangement in the rear end of the positive round cone, and normal cone intracavity posterior end has and cylinder
The round cavity of body adaptation.Cylindrical body can play the role of positioning.
Compared with prior art, the invention has the following advantages that
Cutter head is connect with cutter hub using clamping mode in the present invention, it is only necessary to quickly change the cutter head for using post-passivation
It can continue to process, cutter hub can be used for multiple times, and efficiency is higher；The positive round cone of rear blade is screwed in by the normal cone with cutter hub
Inner cavity surface closely touch, and forms interference fit, and drill bit will receive the power counterclockwise that a work piece is given in drilling, add
The effect in upper cross spacing face and longitudinal spacing face, is bonded cutter head always with cutter hub, reaches self-locking clamping, cutter head and cutter hub it
Between cooperate close, will not fall off or loosen always in drilling, and clamping mode makes the replacement rapid and convenient of cutter head.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of cutter head in the present invention；
Fig. 2 is the A of Fig. 1 to schematic diagram；
Fig. 3 is the B of Fig. 2 to schematic diagram；
Fig. 4 is the structural schematic diagram of cutter hub in the present invention；
Fig. 5 is cutter head with reference to figure；
Fig. 6 is with reference to figure one；
Fig. 7 is with reference to figure two；
Fig. 8 is with reference to figure three；
Fig. 9 is with reference to figure four；
Figure 10 is with reference to figure five；
Figure 11 is with reference to figure six；
Figure 12 is with reference to figure seven；
Figure 13 is with reference to figure eight；
Figure 14 is with reference to figure nine；
In figure: 1- cutter hub, 2- cutter head, 3- positive round cone, 4- normal cone inner cavity, 5- cross spacing face A, 6- longitudinal spacing face
A, 7- cross spacing face B, 8- longitudinal spacing face B, 9- chip space B, 10- chip space A, 11- seamed edge, the inclined-plane 12-, 13- cylindrical body,
14- round cavity.
Specific embodiment
In order to which technical solution of the present invention and advantage is more clearly understood, the present invention is carried out into one below in conjunction with attached drawing
Step is described in detail.
As shown in Figs 1-4, self-locking fast replacing drill disclosed by the invention, including cutter hub 1 and cutter head 2,1 material of cutter hub are alloy
Steel, the material of cutter head 2 are hard alloy.There is the positive round cone 3 of coaxial arrangement in the rear end of cutter head 2, and positive round cone 3 is straight from back to front
Diameter is gradually reduced, and there is the normal cone inner cavity 4 of coaxial arrangement in the front end of cutter hub 1, and positive round cone 3 and normal cone inner cavity 4 are interference fitted.
There is the cylindrical body 13 of coaxial arrangement in the rear end of positive round cone 3, and there is the round cavity being adapted to cylindrical body 13 in 4 rear end of normal cone inner cavity
14.Cylindrical body 13 can play the role of positioning.
Wherein, positive round cone 3 is identical as the taper of normal cone inner cavity 4, and the cone angle of positive round cone 3 and normal cone inner cavity 4 is equal
It is 6 °.Positive round cone 3 and the fit tolerance of normal cone inner cavity 4 are 0.002-0.005, for example, the diameter of 3 front end of positive round cone is
9.455mm, the length of positive round cone 3 are 8mm；The length of normal cone inner cavity 4 is 8mm, and the diameter of 4 front end of normal cone inner cavity is
9.45mm。
There is limiting section A on cutter head 2, having the limiting section B being adapted to limiting section A, limiting section A on cutter hub 1 includes cross spacing
Face A5 and longitudinal spacing face A6, cross spacing face A5 are flushed with the front end face of positive round cone 3, the rear end of longitudinal spacing face A6 and cross
It intersects vertically to confined planes A5；Limiting section B includes cross spacing face B7 and longitudinal spacing face B8；There is helix to surround on cutter hub 1
Chip space B9, the chip space A10 for having helix circular on cutter head 2.
As shown in Figure 6,7, limiting section A and limiting section B it is equal there are two, two limiting section A centered on the axis of cutter head 2
Circumferencial direction is arranged at equal intervals, and two limiting section B are arranged centered on the axis of cutter hub 1 in circumferencial direction at equal intervals；Chip space
B9 and chip space A10 have two.
As shown in Fig. 1,2,3,5,6, two chip space A10 form four seamed edges 11 in positive round cone 3, respectively along four
Radial direction grinding a part of seamed edge 11 forms four inclined-planes 12, reduces when being put into cutter head 2 in positive round cone 3 and normal cone
The size of the contact position at 4 edge of chamber.As shown in figure 9, using the vacancy of chip space B and 4 junction of normal cone inner cavity that cutter head 2 is first
It is put into cutter hub 1, four inclined-planes 12 make cutter head 2 have certain gap when being put into cutter hub 1, will not block and fail to lay down.
Simultaneously when rotary cutter 2, form the front end of the inner cavity of normal cone before this 4 of interference fit, with rotation angle increase,
Mating surface can be more and more big.
As shown in Fig. 8,10,11, when rotating clockwise cutter head and screwing in, the originally portion of conical cavity and cone contact squeeze
Divide sub-fraction in only enclosing, can gently be screwed in cutter head using knife rest is unloaded, the part of cutter head and cutter hub extrusion fit
More and more, the face of cooperation is more and more big, to the last cooperates in place, and inclined-plane 12 also plays transitional function, makes to screw in and more hold
Easily.
As shown in Figure 12,13,14, when cutter head 2 is installed in place in cutter hub 1,1 longitudinal spacing face A6 has and only with 1
A longitudinal spacing face B8 is abutted, and 1 cross spacing face A5 has and only abuts with 1 cross spacing face B7, and a chip space A10 has
And it is only continuous with a chip space B9, at this point, each face fits closely, without gap.In longitudinal spacing face A6 and longitudinal spacing
Under the action of the B8 of face, cutter head 2 obtains position-limiting action in circumferencial direction with cutter hub 1；Cross spacing face A5's and cross spacing face B7
Under effect, cutter head 2 and cutter hub 1 obtain position-limiting action in the axial direction.
As shown in Figure 13,14, cutter head can be constantly subjected to the component of an axial direction, fit closely cutter head with cutter hub.Work as knife
After first 2 are screwed into place, due to the extruding of interference fit, cutter head will receive the effect of F1 and F2, due to taper, F1 and F2
The component F3, F3 for generating an axial direction fit closely cutter head 2 with cutter hub 1, reach locking purpose；When drilling, knife
Head rotate clockwise, cutting edge will be given its power counterclockwise by a work piece, plus cross spacing face with indulge
Effect to confined planes reaches self-locking clamping so that cutter head is firmly fitted on cutter hub, drilling when will not fall off always or
It loosens, cooperates closely between cutter head and cutter hub, and clamping mode makes the replacement rapid and convenient of cutter head, efficiency is higher.In use,
Only needing, which will use the cutter head of post-passivation quickly to change, can continue to process, and cutter hub can be used for multiple times, save the cost.
Certainly, the present invention can also have other various embodiments, without deviating from the spirit and substance of the present invention, ripe
Various corresponding changes and modifications, but these corresponding changes and modifications can be made according to the present invention by knowing those skilled in the art
All it should fall within the scope of protection of the appended claims of the present invention.
Claims (8)
1. self-locking fast replacing drill, it is characterised in that: including cutter hub (1) and cutter head (2), the rear end of the cutter head (2), which has, coaxially to be set
The positive round cone (3) set, diameter is gradually reduced positive round cone (3) from back to front, and there is coaxial arrangement in the front end of the cutter hub (1)
Normal cone inner cavity (4), the positive round cone (3) and normal cone inner cavity (4) are interference fitted；
There is limiting section A on the cutter head (2), having the limiting section B being adapted to limiting section A, limiting section A on cutter hub (1) includes laterally
Confined planes A (5) and longitudinal spacing face A (6), cross spacing face A (5) are flushed with the front end face of positive round cone (3), longitudinal spacing face
The rear end of A (6) intersects vertically with cross spacing face A (5)；The limiting section B includes cross spacing face B (7) and longitudinal spacing face B
(8)；There are the chip space B (9) that helix is circular, the chip space A (10) for having helix circular on cutter head (2) on cutter hub (1)；
Limiting section A and limiting section B it is equal there are two, two limiting section A centered on the axis of cutter head (2) circumferencial direction at equal intervals
Setting, two limiting section B are arranged centered on the axis of cutter hub (1) in circumferencial direction at equal intervals；Chip space B (9) and chip space A
(10) there are two；
When cutter head (2) is installed in place in cutter hub (1), 1 longitudinal spacing face A (6) have and only with 1 longitudinal spacing face B (8)
It abuts, 1 cross spacing face A (5) has and only abuts with 1 cross spacing face B (7), and a chip space A (10) has and only with one
Chip space B (9) is continuous.
2. self-locking fast replacing drill according to claim 1, it is characterised in that: two chip space A (10) are in positive round cone (3)
Four seamed edges (11) of upper formation form four inclined-planes (12) along radial direction grinding a part of four seamed edges (11) respectively.
3. self-locking fast replacing drill according to claim 1, it is characterised in that: positive round cone (3) and normal cone inner cavity (4)
Taper is identical.
4. self-locking fast replacing drill according to claim 3, it is characterised in that: positive round cone (3) and normal cone inner cavity (4)
Cone angle is 6 °.
5. according to claim 1, self-locking fast replacing drill described in 3 or 4, it is characterised in that: positive round cone (3) and normal cone inner cavity
(4) fit tolerance is 0.002-0.005.
6. self-locking fast replacing drill according to claim 1, it is characterised in that: the diameter of positive round cone (3) front end is
9.455mm, the length of positive round cone (3) are 8mm；The length of normal cone inner cavity (4) be 8mm, normal cone inner cavity (4) front end it is straight
Diameter is 9.45mm.
7. self-locking fast replacing drill according to claim 1, it is characterised in that: cutter hub (1) material is steel alloy, cutter head (2)
Material be hard alloy.
8. self-locking fast replacing drill according to claim 1, it is characterised in that: the rear end of the positive round cone (3) has coaxially
There are the round cavity (14) being adapted to cylindrical body (13) in the cylindrical body (13) of setting, normal cone inner cavity (4) rear end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710919910.3A CN109590518A (en) | 2017-09-30 | 2017-09-30 | Self-locking fast replacing drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710919910.3A CN109590518A (en) | 2017-09-30 | 2017-09-30 | Self-locking fast replacing drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109590518A true CN109590518A (en) | 2019-04-09 |
Family
ID=65955744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710919910.3A Pending CN109590518A (en) | 2017-09-30 | 2017-09-30 | Self-locking fast replacing drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109590518A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112388035A (en) * | 2020-11-05 | 2021-02-23 | 成都工具研究所有限公司 | Modular rotating tool and installation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4218162A (en) * | 1977-11-02 | 1980-08-19 | Elizabeth Jean Hillier | Drilling bit |
| US20080219790A1 (en) * | 2007-03-06 | 2008-09-11 | Zick Jonathan A | Conduit reamer tool element |
| CN201195211Y (en) * | 2008-01-25 | 2009-02-18 | 四川天虎工具有限责任公司 | Mechanically-clamped insection type drill |
| CN104759664A (en) * | 2015-04-21 | 2015-07-08 | 成都锋宜精密工具制造有限公司 | Self-locking type head-replaceable carbide drill |
| CN207309028U (en) * | 2017-09-30 | 2018-05-04 | 成都成量工具集团有限公司 | Self-locking fast replacing drill |
-
2017
- 2017-09-30 CN CN201710919910.3A patent/CN109590518A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4218162A (en) * | 1977-11-02 | 1980-08-19 | Elizabeth Jean Hillier | Drilling bit |
| US20080219790A1 (en) * | 2007-03-06 | 2008-09-11 | Zick Jonathan A | Conduit reamer tool element |
| CN201195211Y (en) * | 2008-01-25 | 2009-02-18 | 四川天虎工具有限责任公司 | Mechanically-clamped insection type drill |
| CN104759664A (en) * | 2015-04-21 | 2015-07-08 | 成都锋宜精密工具制造有限公司 | Self-locking type head-replaceable carbide drill |
| CN207309028U (en) * | 2017-09-30 | 2018-05-04 | 成都成量工具集团有限公司 | Self-locking fast replacing drill |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112388035A (en) * | 2020-11-05 | 2021-02-23 | 成都工具研究所有限公司 | Modular rotating tool and installation method thereof |
| CN112388035B (en) * | 2020-11-05 | 2022-07-01 | 成都工具研究所有限公司 | Modular rotating tool and installation method thereof |
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