CN208450731U - Six sword reamer of wide-angle - Google Patents
Six sword reamer of wide-angle Download PDFInfo
- Publication number
- CN208450731U CN208450731U CN201821112024.6U CN201821112024U CN208450731U CN 208450731 U CN208450731 U CN 208450731U CN 201821112024 U CN201821112024 U CN 201821112024U CN 208450731 U CN208450731 U CN 208450731U
- Authority
- CN
- China
- Prior art keywords
- sword
- drill bit
- cutting
- inverted cone
- cylindrical section
- 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.)
- Active
Links
Landscapes
- Drilling Tools (AREA)
- Milling, Broaching, Filing, Reaming, And Others (AREA)
Abstract
The utility model discloses a kind of six sword reamers of wide-angle.Including drill bit, grip shank；The drill bit includes the inverted cone segment of the cylindrical section on head, tail portion, and inverted cone segment is connect with grip shank, and the cylindrical section and back taper Length Ratio are 1:20, and the diametric gradient of inverted cone segment is 0.03:100；The drill bit is six sword structures, and sword is equal with sword spacing, and drill head helix angle is 55 °, and the drill bit head is provided with cutting cone.The utility model uses the reamer of 55 ° of large helix angles, and when cutting stress, axial force is significantly less than conventional reamers, reduces cutting resistance, improves stock-removing efficiency, improves the finish of fraising, and cylindrical section is convenient to carry out burnishing-in, part suitable for mass production to fraising.55 ° of large helix angles also provide bigger chip space, can the chip removal of more unobstructed ground while high efficiency cutting.
Description
Technical field:
The utility model belongs to reamer technical field, in particular to a kind of six sword reamer of wide-angle.
Background technique:
The helical angle of conventional reamers is generally lower than 15 °, and the axial force generated when cutting after stress is larger, and cutting is caused to hinder
Power is larger, and cutting speed is slow, is not suitable for the processing of part volume.In addition, conventional reamers because cutting resistance it is larger, processing
Hole finish is lower.
The information disclosed in the background technology section is intended only to increase the understanding to the general background of the utility model, and
It is not construed as recognizing or implying in any form that information composition is already known to those of ordinary skill in the art existing
Technology.
Utility model content:
The purpose of this utility model is to provide a kind of six sword reamers of wide-angle, to overcome above-mentioned in the prior art scarce
It falls into.
To achieve the above object, the utility model provides a kind of six sword reamer of wide-angle, comprising: drill bit, grip shank；Institute
The inverted cone segment that drill bit includes the cylindrical section on head, tail portion is stated, inverted cone segment is connect with grip shank, the cylindrical section and back taper segment length
Than for 1:20, the diametric gradient of inverted cone segment is 0.03:100；The drill bit is six sword structures, sword and sword spacing phase
It is 55 ° Deng, drill head helix angle, the drill bit head is provided with cutting cone.
Compared with prior art, the utility model has the following beneficial effects:
Using the reamer of 55 ° of large helix angles, when cutting stress, axial force is significantly less than conventional reamers, reduces cutting
Resistance improves stock-removing efficiency, improves the finish of fraising, and cylindrical section is convenient to carry out burnishing-in to fraising, suitable for mass production
Part.55 ° of large helix angles also provide bigger chip space, can the chip removal of more unobstructed ground while high efficiency cutting.
Detailed description of the invention:
Fig. 1 is six sword reamer structural schematic diagram of the utility model wide-angle；
Fig. 2 is the utility model round bur head top view；
Fig. 3 is conventional reamers stress decomposition diagram；
Fig. 4 is the utility model stress decomposition diagram；
Appended drawing reference are as follows: 1- drill bit, 2- grip shank, 3- cylindrical section, 4- inverted cone segment, 5- cutting cone.
Specific embodiment:
Specific embodiment of the present utility model is described in detail below, it is to be understood that the protection of the utility model
Range is not limited by the specific implementation.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " includes " or its change
Changing such as "comprising" or " including " etc. will be understood to comprise stated element or component, and not exclude other members
Part or other component parts.
As shown in Figs. 1-2, a kind of six sword reamer of wide-angle, comprising: drill bit 1, grip shank 2；The drill bit 1 includes head
Cylindrical section 3, tail portion inverted cone segment 4, inverted cone segment 4 connect with grip shank 2, and the cylindrical section 3 is 1:20 with 4 length ratio of inverted cone segment,
The diametric gradient of the inverted cone segment 4 is 0.03:100；The drill bit 1 is six sword structures, and sword is equal with sword spacing, drill bit 1
Helical angle is 55 °, and 1 head of drill bit is provided with cutting cone 5.
As shown in Figure 3-4, during processing, normal force F acts on 1 cutting edge of drill bit to reamer, can generate axial force Y and diameter
To two component of power X, conventional reamers can generate biggish axial force Y, so that reamer is by larger since spiral angle a is smaller
Cutting resistance, affect reamer stock-removing efficiency, the finish of fraising is also poor.The reamer of this patent is due to spiral angle a
55 °, according to axial force Y=F × cosa, the axial force Y being subject to will be significantly less than conventional reamers, such reamer in processing by
The cutting resistance arrived is also smaller, not only increases processing efficiency, and the finish of fraising is also improved.Reamer high-efficient cutting
When, a large amount of iron filings can be generated, large helix angle provides bigger chip space, can carry out chip removal more unobstructedly.Spiral angle a
After increase, axial force Y reduces, and radial force X increases, and in order to reduce the vibration of radial force X generation, cylindrical section 3 falls instead of a part
Section 4 is bored, drill bit 1 is stabilized, improves cutting quality.
The description of the aforementioned specific exemplary embodiment to the utility model is in order to illustrate and illustration purpose.These
Description is not wishing to for the utility model to be limited to disclosed precise forms, and it will be apparent that according to the above instruction, can carry out
It is many to change and change.The purpose of selecting and describing the exemplary embodiment is that explaining the specific principle of the utility model
And its practical application, so that those skilled in the art can be realized and utilize a variety of different examples of the utility model
Property embodiment and various chooses and changes.The scope of the utility model is intended to by claims and its waits similar shapes
Formula is limited.
Claims (1)
1. a kind of six sword reamer of wide-angle, it is characterised in that: including drill bit, grip shank；The drill bit include head cylindrical section,
The inverted cone segment of tail portion, inverted cone segment are connect with grip shank, and the cylindrical section and back taper Length Ratio are 1:20, the inverted cone segment diameter
The gradient in direction is 0.03:100；The drill bit is six sword structures, and sword is equal with sword spacing, and drill head helix angle is 55 °, the brill
Head portion is provided with cutting cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821112024.6U CN208450731U (en) | 2018-07-13 | 2018-07-13 | Six sword reamer of wide-angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821112024.6U CN208450731U (en) | 2018-07-13 | 2018-07-13 | Six sword reamer of wide-angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208450731U true CN208450731U (en) | 2019-02-01 |
Family
ID=65170764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821112024.6U Active CN208450731U (en) | 2018-07-13 | 2018-07-13 | Six sword reamer of wide-angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208450731U (en) |
-
2018
- 2018-07-13 CN CN201821112024.6U patent/CN208450731U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102787812B (en) | A kind of monolithic many ribs drilling rod | |
| CN203918039U (en) | Combination subland drill | |
| CN208450731U (en) | Six sword reamer of wide-angle | |
| CN101392781A (en) | Expansion bolt | |
| CN206028821U (en) | Multi -purpose chamfer sword of combined type | |
| CN207534016U (en) | Multi-functional compound step drill | |
| CN202645436U (en) | Combined drill bit | |
| CN203592177U (en) | Conical step drill | |
| CN209520405U (en) | A kind of spiral bit | |
| CN203371087U (en) | Twist drill | |
| CN207239241U (en) | A kind of two-way rose reamer used on numerical control device | |
| CN201687825U (en) | Self-drilling screw | |
| CN203371061U (en) | Clamping jaw structure of bearing turning cutter | |
| CN201807749U (en) | Multifunctional combination turning tool | |
| CN2785769Y (en) | Electric drill head | |
| CN202527754U (en) | Left-rotation drill bit | |
| CN207577486U (en) | A kind of U drill point sets applied to numerical-control horizontal lathe | |
| CN205674272U (en) | A kind of combination jacking cutting tool | |
| CN203197324U (en) | Inclination drill bit | |
| CN110374511A (en) | A kind of boring and coring drilling rod | |
| CN112008118A (en) | Diameter changing method of diameter-variable handheld electric drill | |
| CN201037492Y (en) | Tapping screw with tail tip having cutting angle | |
| CN201297315Y (en) | Expansion bolt | |
| CN216741383U (en) | Positioning device for diamond composite drill bit | |
| CN207494643U (en) | A kind of taper milling cutter for being used to process high-temperature alloy material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |