CN208495883U - Device for processing drill - Google Patents
Device for processing drill Download PDFInfo
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- CN208495883U CN208495883U CN201821017396.0U CN201821017396U CN208495883U CN 208495883 U CN208495883 U CN 208495883U CN 201821017396 U CN201821017396 U CN 201821017396U CN 208495883 U CN208495883 U CN 208495883U
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- shank
- drill
- drill body
- changeover portion
- hold
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Abstract
The utility model relates to the technical fields of machining, disclose a kind of device for processing drill, shank and drill body including cylindrical structure, shank includes hold-down segment and changeover portion, hold-down segment is equipped with clamping plane, when drill bit clamping, fastening screw is pressed on clamping plane, clamping plane has good clamping force to the cutting of big torsion, it is avoided that cutter inside contracts or skids, and then guarantee cutting-tool's used life, simultaneously, shank includes changeover portion, changeover portion can increase the structural rigidity of shank and drill body, it forms a step between hold-down segment, play the role of limit, the axial displacement for avoiding processing reaction force from generating, furthermore, since shank is that coaxial welding connects with drill body, so, shank and drill body can be made of different materials, intensity and the higher drill body of rigid requirements are made of hard alloy, it is right Intensity and the somewhat lower shank of rigid requirements can be made of lower-cost steel material, advantageously reduce material cost.
Description
Technical field
The utility model relates to the technical fields of machining, more particularly to a kind of device for processing drill.
Background technique
The shank of existing drill bit generally is cylindrical structure, when clamping, fastening structure directly with cylindrical body shank
Peripheral wall abuts, and since the peripheral wall of shank is smooth arc surface, stability is poor when clamping, is using the processed of big cutting force
Cheng Zhonghui generates cutter and inside contracts and skid, and then the risk of cutter tipping or fracture occurs, thus greatly reduces making for drill bit
Use the service life.Moreover, high intensity and high rigidity requirement in order to guarantee drill bit, the existing device for processing drill is all to use
Hard alloy manufacture, since the shank and drill bit of drill bit are all integral structures, so entire drill bit all needs to have using hard alloy
When the shank that is arranged it is longer, need biggish material cost, be unfavorable for save the cost.
Utility model content
The purpose of the utility model is to provide a kind of device for processing drill, the drill bit clamping stability of processing compared with
The service life of drill bit can be effectively ensured, moreover it is possible to save material cost in height.
To solve the above-mentioned problems, the utility model provides a kind of device for processing drill, including cylindrical structure
Shank and drill body, the shank connect with the drill body coaxial welding；
The shank includes hold-down segment and changeover portion, and the diameter of the changeover portion is greater than the diameter of the hold-down segment, described
Hold-down segment is equipped with clamping plane, and the clamping plane is arranged along the length direction of the shank.
Further, the diameter difference of the changeover portion and the hold-down segment is 5mm~10mm.
Further, the changeover portion is equipped with connecting hole, and the connecting hole is arranged along the axial direction of the changeover portion, institute
The one end for stating drill body is connect with the connecting hole coaxial welding, and the other end of the drill body is equipped with drill bit.
Further, the shank further includes the conical section connecting with the changeover portion, along the shank to the drill body
Direction, the diameter of the conical section gradually successively decreases.
Further, the diameter of the drill body is d, and the d meets: 16mm≤d < 30mm.
Further, the drill body is hard alloy drill body.
Further, the shank is CR40 steel shank.
The utility model provides the device for being used for processing drill, shank and drill body including cylindrical structure, and shank includes
Hold-down segment and changeover portion, hold-down segment is equipped with clamping plane, and when drill bit clamping, fastening screw is pressed on clamping plane, plane
The stability of clamping can be effectively ensured compared to arc surface clamping for clamping, have good clamping force to the cutting of big torsion, can keep away
Exempt from cutter to inside contract or skid, and then guarantees cutting-tool's used life, meanwhile, shank includes changeover portion, and changeover portion can increase shank
With the structural rigidity of drill body, a step being formed between hold-down segment, plays the role of limit, processing reaction force is avoided to produce
Raw axial displacement, further, since shank with drill body is that coaxial welding connects, so, shank and drill body can use different
Material production is made intensity and the higher drill body of rigid requirements of hard alloy, somewhat lower to intensity and rigid requirements
Shank can using lower-cost steel material make, advantageously reduce material cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram in the utility model embodiment for the device of processing drill；
Fig. 2 is the diagrammatic cross-section in the utility model embodiment for the device of processing drill.
In figure, 10, shank；20, drill body；101, hold-down segment；102, changeover portion；103, conical section；104, clamping plane；
105, connecting hole；201, drill bit.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
In the description of the present invention, it should be understood that term " on ", "lower", "left", "right", "top", "bottom" etc.
The orientation or positional relationship of instruction is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model
It is described with simplifying, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation structure
It makes and operates, therefore should not be understood as limiting the present invention.
Referring to figs. 1 and 2, a kind of device for processing drill of the utility model embodiment is schematically showed
Part, shank 10 and drill body 20 including cylindrical structure, shank 10 are connect with 20 coaxial welding of drill body, will be wanted to intensity and rigidity
Ask higher drill body 20 to be made of hard alloy, the shank 10 somewhat lower to intensity and rigid requirements can using cost compared with
Low steel material production, is manufactured, the manufacturing method of welding procedure can be arrived accordingly, with respect to using whole hard alloy material
Material cost is reduced to greatest extent, and in the present embodiment, shank 10 is made of CR40 steel, steel material various spies easy to process
Different shape, adaptability is wider, and drill body 20 is manufactured using cemented carbide material；Further, shank 10 includes hold-down segment 101 and mistake
Section 102 is crossed, the diameter of changeover portion 102 is greater than the diameter of hold-down segment 101, and hold-down segment 101 is equipped with clamping plane 104, compresses flat
Face 104 is arranged along the length direction of shank 10, and clamping plane 104 is generally cutting plane, and when drill bit clamping, fastening screw is compressed
On clamping plane 104, the stability of clamping can be effectively ensured compared to arc surface clamping for plane clamping, cut big torsion
There is good clamping force, be avoided that cutter inside contracts or skids, and then guarantees cutting-tool's used life, meanwhile, shank 10 included
Section 102 is crossed, changeover portion 102 can increase the structural rigidity of shank 10 Yu drill body 20, and a platform is formed between hold-down segment 101
Rank plays the role of limit, the axial displacement for avoiding processing reaction force from generating, it is preferable that setting changeover portion 102 and hold-down segment
101 diameter difference is 5mm~10mm.
In the present embodiment, changeover portion 102 is equipped with connecting hole 105, and connecting hole 105 is set along the axial direction of changeover portion 102
It sets, one end of drill body 20 is connect with 105 coaxial welding of connecting hole, by the company that one end of drill body 20 is extended to changeover portion 102
It connects in hole 105 and is welded and fixed with connecting hole 105, guarantee the stable connection of drill body 20 and shank 10, reduce Drill Crack
The other end of risk, drill body 20 is equipped with drill bit 201, and drill bit 201 is accommodated by the other end component of drill body 20, according to need
The angle of the drill point angle to be processed is designed, and can effectively remove the surplus for needing to process, and can effectively improve manufacture effect
Rate.
Shank 10 further includes the conical section 103 connecting with changeover portion 102, along shank 10 to the direction of drill body 20, conical section
103 diameter gradually successively decreases, and setting 103 one side of conical section can optimize surface structure, reduces drill body 20 and changeover portion 102
On the other hand step height has certain effect to chip removal and the cooling angle of coolant liquid.
In the present embodiment, the diameter for the drill bit 201 that the diameter of drill body 20 is processed as needed is designed, and generally, is bored
The diameter of body 20 is d satisfaction: 16mm≤d < 30mm；The handle for the drill bit 201 that the diameter of 10 hold-down segment 101 of shank is processed as needed
Portion's diameter is designed, and according to industrial nature, the diameter of hold-down segment 101 is that D is typically designed to D=20mm or=25mm.
It should be understood that various information are described in the utility model using term " first ", " second " etc., but these
Information should not necessarily be limited by these terms, these terms are only used to for same type of information being distinguished from each other out.For example, not departing from this
In the case where utility model range, " first " information can also be referred to as " second " information, and similar, " second " information can also be with
Referred to as " first " information.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvement and replacement can also be made, these change
It also should be regarded as the protection scope of the utility model into replacement.
Claims (7)
1. a kind of device for processing drill, which is characterized in that shank and drill body including cylindrical structure, the shank with
The drill body coaxial welding connection；
The shank includes hold-down segment and changeover portion, and the diameter of the changeover portion is greater than the diameter of the hold-down segment, the compression
Section is equipped with clamping plane, and the clamping plane is arranged along the length direction of the shank.
2. being used for the device of processing drill as described in claim 1, which is characterized in that the changeover portion and the hold-down segment
Diameter difference is 5mm~10mm.
3. such as the described in any item devices for processing drill of claims 1 or 2, which is characterized in that the changeover portion is equipped with
Connecting hole, the connecting hole are arranged along the axial direction of the changeover portion, and one end of the drill body is coaxially welded with the connecting hole
It connects in succession, the other end of the drill body is equipped with drill bit.
4. being used for the device of processing drill as claimed in claim 3, which is characterized in that the shank further includes and the transition
The conical section of section connection, along the shank to the direction of the drill body, the diameter of the conical section gradually successively decreases.
5. such as the described in any item devices for processing drill of claims 1 or 2, which is characterized in that the diameter of the drill body
For d, and the d meets: 16mm≤d < 30mm.
6. being used for the device of processing drill as described in claim 1, which is characterized in that the drill body is hard alloy drill body.
7. being used for the device of processing drill as described in claim 1, which is characterized in that the shank is CR40 steel shank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821017396.0U CN208495883U (en) | 2018-06-28 | 2018-06-28 | Device for processing drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821017396.0U CN208495883U (en) | 2018-06-28 | 2018-06-28 | Device for processing drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208495883U true CN208495883U (en) | 2019-02-15 |
Family
ID=65282867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821017396.0U Active CN208495883U (en) | 2018-06-28 | 2018-06-28 | Device for processing drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208495883U (en) |
-
2018
- 2018-06-28 CN CN201821017396.0U patent/CN208495883U/en active Active
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