CN203725917U - Reamer for processing step holes - Google Patents
Reamer for processing step holes Download PDFInfo
- Publication number
- CN203725917U CN203725917U CN201320674484.9U CN201320674484U CN203725917U CN 203725917 U CN203725917 U CN 203725917U CN 201320674484 U CN201320674484 U CN 201320674484U CN 203725917 U CN203725917 U CN 203725917U
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- CN
- China
- Prior art keywords
- blade
- finish
- reams
- finish reams
- diameter
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- Expired - Fee Related
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Abstract
The utility model relates to a reamer for processing step holes. The reamer comprises a reamer rod, a reamer head is arranged at one end of the reamer rod, a first finish reaming blade, a second finish reaming blade, a third finish reaming blade and a fourth finish reaming blade are sequentially arranged on the reamer head, diameter of the first finish reaming blade is smaller than that of the second finish reaming blade, the diameter of the second finish reaming blade is smaller than that of the third finish reaming blade, the diameter of the third finish reaming blade is smaller than that of the fourth finish reaming blade, the first finish reaming blade has a rear angle which is 3-5 degrees, and the second finish reaming blade has a rear angle which is 5-6 degrees. By the reamer, tool changing is not needed for processing of the step holes.
Description
Technical field
The utility model relates to a kind of reamer of processing step hole.
Background technology
Reamer is conventional reaming or repaiies spot facing cutter, uses more in to the fine finishining in hole.Existing reamer is generally made up of cutter hub and operate portions, the semifinishing and the fine finishining that are mainly used in hole, chipping allowance is less, and the hole larger for chipping allowance adds man-hour, common solution is to change other cutters to carry out roughing, is then finish reaming with reamer.As processing work needs chamfer machining, yet to change in addition cutter simultaneously, greatly reduce production efficiency; Simultaneously reamer shank is smooth, installs and when fixing, fixed effect is often not good, the phenomenon that causes drill bit to get loose, skid with clamping apparatus.
Summary of the invention
For the deficiencies in the prior art, the utility model provides the reamer of a kind of processing for stepped hole without the processing step hole of replacing cutter.
The technical scheme solving the problems of the technologies described above is as follows:
A kind of reamer of processing step hole, comprise knife bar, one end of knife bar is provided with cutter head, on cutter head, be provided with successively first and finish ream blade, second finish reams blade, the 3rd finish reams blade and the 4th finish reams blade, the first diameter that finish reams blade is less than the second diameter that finish reams blade, the second diameter that finish reams blade is less than the 3rd diameter that finish reams blade, the 3rd diameter that finish reams blade is less than the 4th diameter that finish reams blade, first finish reams blade has relief angle, the first relief angle of finish reaming blade is 3 °-5 °, second finish reams blade has relief angle, the second relief angle of finish reaming blade is 5 °-6 °.
Described first finish reams blade, second finish reams blade, the 3rd and finish reams blade and the 4th and finish ream blade and be alloy blade.
Described the first alloy blade is the first symmetrical blade after by two lobe mirror images and forms, and the angle of the first blade and horizontal direction is 35 °, and the angle at two the first blade intervals is 110 °.
Described the second alloy blade is the second symmetrical blade after by two lobe mirror images and forms, and the angle of the second blade and horizontal direction is 35 °, and the angle at two the second blade intervals is 110 °.
The 3rd alloy blade is made up of pintongs the 3rd blade, and between adjacent two the 3rd blades, the angle at interval is 100 °.
The 4th alloy blade is made up of pintongs four blade sword, and between adjacent two four blade swords, the angle at interval is 100 °.
Adopt such scheme, the first diameter that finish reams blade is less than the second diameter that finish reams blade, the second diameter that finish reams blade is less than the 3rd diameter that finish reams blade, the 3rd diameter that finish reams blade is less than the 4th diameter that finish reams blade, first finish reams blade has relief angle, the first relief angle of finish reaming blade is 3 °-5 °, and second finish reams blade has relief angle, and the second relief angle of finish reaming blade is 5 °-6 °.Workpiece is added to man-hour, finish reaming blade, second by first finish reams blade, the 3rd and finish reams blade and the 4th and finish ream blade and respectively machining is carried out in each hole, because these four blades are positioned on same cutter head, therefore, in the process of stepped hole, without changing cutter, the working (machining) efficiency not only improving, and improved machining accuracy.
Brief description of the drawings
Fig. 1 is the structural representation of the reamer of processing step hole of the present utility model;
Fig. 2 be along A-A in Fig. 1 to cutaway view;
Fig. 3 be along B-B in Fig. 1 to cutaway view;
Fig. 4 be along C-C in Fig. 1 to cutaway view;
Fig. 5 be along D-D in Fig. 1 to cutaway view;
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described further.
Referring to figs. 1 through Fig. 5, the reamer of processing step hole of the present utility model, comprise knife bar 1, one end of knife bar 1 is provided with cutter head 2, on cutter head 2, being provided with successively first finish reams blade 3, second and finish reams blade 4, the 3rd and finish ream blade 5 and the 4th and finish ream blade 6, the first diameter that finish reams blade 3 is less than the second diameter that finish reams blade 4, and first finish reams blade 3, second finish reams blade 4, the 3rd and finish ream blade 5 and the 4th and finish ream blade 6 and be alloy blade.The second diameter that finish reams blade 4 is less than the 3rd diameter that finish reams blade 5, and the 3rd diameter that finish reams blade 5 is less than the 4th diameter that finish reams blade 6.First finish reams blade 4 has relief angle, and the first relief angle k that finish reams blade is 3 °-5 °, and second finish reams blade has relief angle, and the second relief angle L that finish reams blade is 5 °-6 °.Described the first alloy blade 3 is the first symmetrical blade after by two lobe mirror images and forms, and the angle e of the first blade and horizontal direction is 35 °, and the angle f at two the first blade intervals is 110 °.Described the second alloy blade is the second symmetrical blade after by two lobe mirror images and forms, and the angle g of the second blade and horizontal direction is 35 °, and the angle h at two the second blade intervals is 110 °.The 3rd alloy blade is made up of pintongs the 3rd blade, and between adjacent two the 3rd blades, the angle i at interval is 100 °.The 4th alloy blade is made up of pintongs four blade sword, and between adjacent two four blade swords, the angle j at interval is 100 °.
Claims (1)
1. the reamer of a processing step hole, comprise knife bar, one end of knife bar is provided with cutter head, it is characterized in that, on cutter head, be provided with successively first and finish ream blade, second finish reams blade, the 3rd finish reams blade and the 4th finish reams blade, the first diameter that finish reams blade is less than the second diameter that finish reams blade, the second diameter that finish reams blade is less than the 3rd diameter that finish reams blade, the 3rd diameter that finish reams blade is less than the 4th diameter that finish reams blade, first finish reams blade has relief angle, the first relief angle of finish reaming blade is 3 °-5 °, second finish reams blade has relief angle, the second relief angle of finish reaming blade is 5 °-6 °,
Described first finish reams blade, second finish reams blade, the 3rd and finish reams blade and the 4th and finish ream blade and be alloy blade; Described first finish reams blade is the first symmetrical blade after by two lobe mirror images and forms, and the angle of the first blade and horizontal direction is 35 °, and the angle at two the first blade intervals is 110 °; Described second finish reams blade is the second symmetrical blade after by two lobe mirror images and forms, and the angle of the second blade and horizontal direction is 35 °, and the angle at two the second blade intervals is 110 °; The 3rd finish reams blade is made up of pintongs the 3rd blade, and between adjacent two the 3rd blades, the angle at interval is 100 °; The 4th finish reams blade is made up of pintongs four blade sword, and between adjacent two four blade swords, the angle at interval is 100 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320674484.9U CN203725917U (en) | 2013-10-29 | 2013-10-29 | Reamer for processing step holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320674484.9U CN203725917U (en) | 2013-10-29 | 2013-10-29 | Reamer for processing step holes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203725917U true CN203725917U (en) | 2014-07-23 |
Family
ID=51196022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320674484.9U Expired - Fee Related CN203725917U (en) | 2013-10-29 | 2013-10-29 | Reamer for processing step holes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203725917U (en) |
-
2013
- 2013-10-29 CN CN201320674484.9U patent/CN203725917U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 Termination date: 20151029 |
|
| EXPY | Termination of patent right or utility model |