CN206824716U - A kind of replaceable blade hair style step drill - Google Patents
A kind of replaceable blade hair style step drill Download PDFInfo
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- CN206824716U CN206824716U CN201720410035.1U CN201720410035U CN206824716U CN 206824716 U CN206824716 U CN 206824716U CN 201720410035 U CN201720410035 U CN 201720410035U CN 206824716 U CN206824716 U CN 206824716U
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- cutter head
- step drill
- knife
- handle
- cutting part
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Abstract
The utility model embodiment discloses a kind of replaceable blade hair style step drill, including：Cutter head and handle of a knife, the cutter head and the detachable connection of handle of a knife；The cutter head, overall is in cone shape, and it includes the cutting part of nose part and multiple stacking arrangements；The nose part, it is cone shape；Each cutting part is all disc-shape, and the diameter of the cutting part positioned at preceding layer is more than positioned at the diameter of the cutting part of later layer；The handle of a knife, in cylindrical shape.Difference and prior art, the step drill that the utility model embodiment provides, cutter head and the detachable connection of handle of a knife, different cutter heads is connected in available same handle of a knife, it is convenient and practical, save material.Meanwhile cutter head also includes separable two parts set, in a certain partial destruction, that part of damage can be changed, further save material, realize the multiple utilization of current material.
Description
Technical field
The utility model embodiment is related to stage property field, more particularly to a kind of replaceable blade hair style step drill.
Background technology
Step drill also known as step drill or high speed steel fully ground step drill, are mainly used in sheet metal Drilling operation, and a drill bit can replace branched
Drill bit uses, and processes the hole of different-diameter as needed, and can realize that macropore disposably machines, it is not necessary to more bit change and
Beat positioning hole etc..
Existing step drill when needing to change, handle of a knife is pulled out in use, the shank section of step drill is inserted into lathe
Go out.Such replacing cutter head needs entirely to extract handle of a knife out, more inconvenient, and because handle of a knife is all general part, it is different
Step drill all cause unnecessary waste with handle of a knife.
Utility model content
The utility model embodiment is mainly solving the technical problems that provide a kind of replaceable blade hair style step drill, cutter head
Portion and the separable setting of shank section, cutter head portion changes convenient.
In order to solve the above technical problems, the technical scheme that the utility model uses is：A kind of interchangeable bit is provided
Formula step drill, including：Cutter head and handle of a knife, the cutter head and the detachable connection of handle of a knife；The cutter head, it is overall in cone
Shape, it includes the cutting part of nose part and multiple stacking arrangements；The nose part, it is cone shape；Each cutting part is all
For disc-shape, the diameter of the cutting part positioned at preceding layer is more than positioned at the diameter of the cutting part of later layer；The handle of a knife, in circle
Bar shape.
Difference and prior art, the step drill that the utility model embodiment provides, cutter head and the detachable connection of handle of a knife,
Different cutter heads can be connected with same handle of a knife, it is convenient and practical, save material.Meanwhile cutter head also includes separable setting
Two parts, in a certain partial destruction, that part of damage can be changed, further save material, it is real
The multiple utilization of current material is showed.
Brief description of the drawings
One or more embodiments are illustrative by the picture in corresponding accompanying drawing, these exemplary theorys
The bright restriction not formed to embodiment, the element for having same reference numbers label in accompanying drawing are expressed as similar element, removed
Non- have a special statement, and composition does not limit the figure in accompanying drawing.
Fig. 1 is a kind of structural representation for replaceable blade hair style step drill that the utility model embodiment provides；
Fig. 2 is the structural representation for another replaceable blade hair style step drill that the utility model embodiment provides；
Fig. 3 is the cutter head and handle of a knife attachment structure schematic diagram shown in Fig. 2；
Fig. 4 is the cutter head shown in Fig. 2 and the schematic diagram of the another attachment structure of handle of a knife；
Fig. 5 is the structural representation for another replaceable blade hair style step drill that the utility model embodiment provides.
Embodiment
For the ease of understanding the utility model, with reference to the accompanying drawings and detailed description, the utility model is carried out more
Detailed description.It should be noted that when element is expressed " being fixed on " another element, it can be directly in another element
Above or therebetween there may be one or more elements placed in the middle.When an element is expressed " connection " another element, it can
To be directly to another element or there may be one or more elements placed in the middle therebetween.This specification is used
Term " vertical ", " horizontal ", "left", "right" and similar statement for illustrative purposes only.
Unless otherwise defined, technology all used in this specification and scientific terminology are with belonging to skill of the present utility model
The implication that the technical staff in art field is generally understood that is identical.In art used in the description of the present utility model in this specification
Language is intended merely to describe the purpose of specific embodiment, is not intended to limit the utility model.Art used in this specification
Language "and/or" includes the arbitrary and all combination of one or more related Listed Items.
Embodiment one
Refering to Fig. 1, a kind of step drill of the offer of the utility model embodiment one, including：Cutter head 11 and handle of a knife 12, cutter head
11 are fixedly connected with handle of a knife 12.
Cutter head 11, overall is in cone shape, and it includes the cutting part 112 of nose part 111 and multiple stacking arrangements.
Nose part 111 is cone shape, and its vertex is blade.
Each cutting part 112 is all disc-shape, and the diameter positioned at the cutting part 112 of later layer is more than positioned at preceding layer
The diameter of cutting part 112, the joint of each cutting part 112 is blade.
Preferably, the quantity of cutting part 112 is 14.Equally, the quantity of cutting part 112 can be 6,8,10 or
It is other.
Cut to form a clearance surface 113 in the side of cutter head 11, clearance surface 113 is advantageous to the row to fines caused by cutting
Go out.The clearance surface 113 extends from the top of cutter head 11 to bottom.
Alternatively, graduation mark 1131 can be set on clearance surface 113, for when being cut, to the depth in the hole of cutting
Measure.
Alternatively, also settable chip area 1132, the chip area 1132 prolong from the top of cutter head 11 to bottom on clearance surface 113
Stretch, the chip area 1132 would be even more beneficial to discharge fines caused by cutting.
Handle of a knife 12, overall is in cylindrical shape, and one top surface is connected with the bottom surface of cutter head 11.
Embodiment two
Refering to Fig. 2, a kind of step drill of the offer of the utility model embodiment two, including：Cutter head 21 and handle of a knife 22, cutter head
21 with 22 detachable connection of handle of a knife.
Cutter head 21, overall is in cone shape, and it includes the cutting part 212 of nose part 211 and multiple stacking arrangements.
Nose part 211 is cone shape, and its vertex is blade.
Each cutting part 212 is all disc-shape, and the diameter positioned at the cutting part 212 of later layer is more than positioned at preceding layer
The diameter of cutting part 212, the joint of each cutting part 212 is blade.
Preferably, the quantity of cutting part 212 is 14.Equally, the quantity of cutting part 212 can be 6,8,10 or
It is other.
Cut to form a clearance surface 213 in the side of cutter head 21, clearance surface 213 is advantageous to the row to fines caused by cutting
Go out.The clearance surface 213 extends from nose part 21 to the bottom of cutting part 212.
Alternatively, graduation mark 2131 can be set on clearance surface 213, for when being cut, to the depth in the hole of cutting
Measure.
Alternatively, also settable chip area 2132, the chip area 2132 prolong from the top of cutter head 21 to bottom on clearance surface 213
Stretch, the chip area 2132 would be even more beneficial to discharge fines caused by cutting.
Refering to Fig. 3, lug boss 214 is also included on the bottom surface of cutter head 21, the lug boss 214 is hollow cylinder shape,
Screw thread is provided with the medial surface of lug boss 214.
The shape of above-mentioned lug boss 214 can also be：Hollow cube shaped, cone shape etc..
One insertion section 221 is set on handle of a knife 22, and the shape of the insertion section 221 is identical with the shape of lug boss 214, its outside
Screw thread is again provided with face.
, can be by cutter head 21 and the phase of handle of a knife 22 by the cooperation of the screw thread on the screw thread on lug boss 214 and insertion section 221
Connection.
Refering to Fig. 4, in certain embodiments, one first magnetic part 2141 also can be set inside lug boss 214, and be located at
Two fixed blocks 2142 being oppositely arranged on the medial surface of lug boss 214.The shape of the fixed block 2142 can be cuboid, cylinder
Or other shapes.
The second magnetic part 2211 that one polarity is opposite with the first magnetic part 2141 is set on insertion section 221, and is located at
Two fixing grooves 2212 being oppositely arranged on lateral surface, the shape of the fixing groove 2212 are identical with the shape of fixed block 2142.
During connection, insertion section 221 is inserted in lug boss 214, and the first magnetic part 2141 and the second magnetic part 2211 pass through magnetic
Power attracts each other, and connects., can meanwhile fixed block 2142 is embedded into fixing groove 2212 in position alignment fixing groove 2212
To prevent insertion section 221 from producing displacement in lug boss 214.
Embodiment three
Refering to Fig. 5, on the basis of the step drill described in two is implemented, cutter head 31 includes：First cutter device 311 and
Two cutter devices 312.Wherein, it is in cone shape that the first cutter device 311 is overall, and it includes nose part 3111 and multiple stackings
First cutting part 3112 of arrangement.
Nose part 3111 is cone shape, and its vertex is blade.
Each cutting part 3112 is all disc-shape, is more than positioned at the diameter of the cutting part 3112 of later layer and is located at preceding layer
Cutting part 3112 diameter, the joint of each cutting part 3112 is blade.
An inward recess 3113 is additionally provided with the bottom surface of first cutter device 311, is set on the medial surface of the inward recess 3113
It is equipped with screw thread.
Second cutter device 312, overall is in truncated conical shape, and it is made up of multiple second cutting parts 3121.Every 1 second cuts
It is all disc-shape to cut portion 3121, and the cutting part 3121 positioned at preceding layer is more than positioned at the diameter of the cutting part 3121 of later layer
Diameter, the joint of each cutting part 3121 is blade.
A connecting portion 3122 is provided with the bottom surface of second cutter device 312, screw thread is again provided with its lateral surface.
, can be by the first cutter device by the cooperation of the screw thread on the screw thread on inward recess 3113 and connecting hole 3122
311 are connected with the second cutter device 312.
Optionally, an interior also settable magnetic part for inward recess 3113, and on the medial surface of inward recess 3113 in opposite directions
Two fixed blocks set.
The second magnetic part that one polarity is opposite with the first magnetic part is set on connecting portion 3122, and on lateral surface
Two fixing grooves being oppositely arranged.
During connection, connecting portion 3122 is inserted in inward recess 3113, and the first magnetic part is mutual by magnetic force with the second magnetic part
Attract, and connect.Meanwhile fixed block is embedded into fixing groove in position alignment fixing groove, can prevent connecting portion 3122 from existing
Displacement is produced in connecting hole 3113.
Difference and prior art, the step drill that the utility model embodiment provides, cutter head and the detachable connection of handle of a knife,
Different cutter heads can be connected with same handle of a knife, it is convenient and practical, save material.Meanwhile cutter head also includes separable setting
Two parts, in a certain partial destruction, that part of damage can be changed, further save material, it is real
The multiple utilization of current material is showed.
It should be noted that preferably implementation of the present utility model is given in specification of the present utility model and its accompanying drawing
Mode, still, the utility model can be realized by many different forms, however it is not limited to the implementation described by this specification
Mode, these embodiments are not as the extra limitation to the utility model content, there is provided the purpose of these embodiments is to make
Understanding more thorough and comprehensive to disclosure of the present utility model.Also, above-mentioned each technical characteristic continues to be mutually combined, formed
The various embodiments not being enumerated above, it is accordingly to be regarded as the scope of the utility model specification record；Further, to this area
For those of ordinary skill, it can according to the above description be improved or be converted, and all these modifications and variations should all belong to
The protection domain of the appended claims for the utility model.
Claims (10)
- A kind of 1. replaceable blade hair style step drill, it is characterised in that including：Cutter head and handle of a knife, the cutter head can divide with handle of a knife Connected from formula；The cutter head, overall is in cone shape, and it includes the cutting part of nose part and multiple stacking arrangements；The nose part, it is cone shape；Each cutting part is all disc-shape, and the diameter positioned at the cutting part of later layer is straight more than the cutting part positioned at preceding layer Footpath；The handle of a knife, in cylindrical shape.
- 2. step drill according to claim 1, it is characterised in that the side of the cutter head is provided with a clearance surface, described Clearance surface extends at the top of cutter head to bottom.
- 3. step drill according to claim 2, it is characterised in that be provided with graduation mark on the clearance surface.
- 4. according to the step drill described in claim any one of 1-3, it is characterised in that set a projection on the bottom surface of the cutter head Portion, the lug boss are hollow three-dimensional shape, and screw thread is provided with the medial surface of the lug boss.
- 5. step drill according to claim 4 a, it is characterised in that insertion section, the insertion are provided with the handle of a knife The shape in portion is identical with the shape of the lug boss, and screw thread is provided with the insertion section lateral surface.
- 6. step drill according to claim 4, it is characterised in that the lug boss be internally provided with the first magnetic part and Two fixed blocks being oppositely arranged on lug boss medial surface.
- 7. step drill according to claim 5 a, it is characterised in that polarity and the first magnetic are provided with the insertion section The second opposite magnetic part of portion and two fixing grooves being oppositely arranged on lateral surface.
- 8. according to the step drill described in claim any one of 1-3, it is characterised in that the cutter head includes：First cutter device And second cutter device；First cutter device includes the first cutting part of nose part and multiple stacking arrangements；Second cutter device, including multiple second cutting parts.
- 9. step drill according to claim 8, it is characterised in that be additionally provided with inward recess on first cutter device 3113, screw thread is provided with the medial surface of the inward recess；Connecting portion is provided with second cutter device, screw thread is provided with the connecting portion lateral surface.
- 10. step drill according to claim 8, it is characterised in that inward recess is additionally provided with first cutter device, One first magnetic part and two fixed blocks being oppositely arranged on inward recess medial surface are provided with the inward recess；Connecting portion is provided with second cutter device, it is opposite with the first magnetic part that a polarity is provided with the connecting portion Second magnetic part and two fixing grooves being oppositely arranged on lateral surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720410035.1U CN206824716U (en) | 2017-04-18 | 2017-04-18 | A kind of replaceable blade hair style step drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720410035.1U CN206824716U (en) | 2017-04-18 | 2017-04-18 | A kind of replaceable blade hair style step drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206824716U true CN206824716U (en) | 2018-01-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720410035.1U Active CN206824716U (en) | 2017-04-18 | 2017-04-18 | A kind of replaceable blade hair style step drill |
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| Country | Link |
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| CN (1) | CN206824716U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108422365A (en) * | 2018-05-15 | 2018-08-21 | 苏州明上系统科技有限公司 | A kind of hardware that can replace cutter head |
-
2017
- 2017-04-18 CN CN201720410035.1U patent/CN206824716U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108422365A (en) * | 2018-05-15 | 2018-08-21 | 苏州明上系统科技有限公司 | A kind of hardware that can replace cutter head |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518000 Workshop 105, No. 1, Xintianhuasai Industrial Plant, Jihua Road, Bantian Street, Longgang District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Zhishan Science and Technology Co., Ltd. Address before: 518000 Workshop 105, No. 1, Xintianhuasai Industrial Plant, Jihua Road, Bantian Street, Longgang District, Shenzhen City, Guangdong Province Patentee before: Zhi Shang Science and Technology Ltd. of Shenzhen |
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| CP01 | Change in the name or title of a patent holder |