CN203541736U - Reamer for small-diameter internal holes - Google Patents
Reamer for small-diameter internal holes Download PDFInfo
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- CN203541736U CN203541736U CN201320723782.2U CN201320723782U CN203541736U CN 203541736 U CN203541736 U CN 203541736U CN 201320723782 U CN201320723782 U CN 201320723782U CN 203541736 U CN203541736 U CN 203541736U
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- angle
- land
- rake face
- aperture
- reamer
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Abstract
A reamer for small-diameter internal holes is composed of a reamer body made of high-speed steel and a reamer handle. The reamer body is toothed blades which are identical in structure and are in central symmetry (namely, a two-tooth reamer body), the width B of the reamer body ranges from 0.5d to 0.7d, each toothed blade is defined by connecting a blade back, a front blade face, a blade band, a first rear blade face, a second rear blade face and tooth backs in sequence, and the d is the hole diameter of the machine holes.
Description
Technical field
The utility model belongs to cutter field, particularly a kind of non-extruding reamer for small diameter bore (aperture 1mm～3mm) processing.
Background technology
The processing of small diameter bore (aperture 1mm～3mm), conventionally adopt reamer, existing non-extruding high-speed reamer has single-blade and two kinds of versions of four swords, and Single-blade reamer is not only manufactured difficulty, and the monolateral stressed imbalance in use that causes, affect the crudy in hole, although stress balance in four sword reamers uses, its chip space is less, cause chip removal not smooth, and the man-hour spending while manufacturing is many, and difficulty is large, manufacturing cost increases.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of novel small diameter inner hole reamer is provided, and not only stress balance in aperture processing of this kind of reamer, holds bits situation good, and more easily manufacture.
Small diameter inner hole reamer described in the utility model, cutter hub and the handle of a knife by high-speed steel, made form, cutter hub profile of tooth blade identical by two-strip structure and that be centrosymmetric forms (being two serrated knife bodies), width B=0.5d～the 0.7d of cutter hub, described profile of tooth blade joins and surrounds successively, the aperture that described d is processed hole by land, rake face, land, major first flank, the second rear knife face and the back of tooth.
Small diameter inner hole reamer described in the utility model, the structure of its profile of tooth blade each several part is as follows: rake face is vertical guide and the center of crossing cutter hub, the angle of rake face and vertical guide is anterior angle, the height h of rake face is capacity chip slot depth, described anterior angle is 0 °, described capacity chip slot depth is 0.18d～0.16d, the aperture that d is processed hole, land is inclined-plane, and the angle W of land and rake face is groove angle, and described groove angle is 120 °, land be center take cutter hub as the center of circle, 1/2nd apertures in processed hole are the arc surface of radius, the horizontal width f=0.1mm of blade, major first flank is inclined-plane, the angle α of major first flank and horizontal plane is the first relief angle, the intersection of major first flank and the second rear knife face to the distance of rake face is K, the second rear knife face is inclined-plane, the angle β of the second rear knife face and horizontal plane is the second relief angle, the back of tooth is vertical guide, parallel with rake face, when the aperture=1mm～1.5mm in processed hole, described the first relief angle α=20 °, K=0.2mm, the second relief angle β=40 °, when the aperture≤3mm in the processed hole of 1.5mm <, described the first relief angle α=15 °, K=0.3mm, the second relief angle β=40 °.
Small diameter inner hole reamer described in the utility model, the optimal way that in its profile of tooth blade, land and rake face join is to join by arc surface, when the aperture=1mm～1.5mm in processed hole, radius R=the 0.1mm of described arc surface, when the aperture≤3mm in the processed hole of 1.5mm <, the radius R=0.3mm of described arc surface.
The utlity model has following beneficial effect:
1, because the cutter hub of small diameter inner hole reamer described in the utility model is two toothing forms, and optimized the structure of profile of tooth blade each several part, thereby in aperture process stress balance, operate steadily, hold bits situation good, compare with four sword reamers with existing single-blade, aperture crudy obviously improves.
2,, because small diameter inner hole reamer described in the utility model is two toothing forms, with respect to existing single-blade and four sword reamers, more easily manufacture, thereby can reduce manufacturing cost.
Small diameter inner hole reamer described in the utility model can be widely used in the aperture processing of various materials, is particularly suitable for the aperture processing of difficult-to-machine material.
Accompanying drawing explanation
Fig. 1 is the structural representation of small diameter inner hole reamer described in the utility model;
Fig. 2 is the A-A profile of Fig. 1.
In figure, the join radius (teeth groove bottom land arc surface radius) of arc surface of intersection to distance, h-capacity chip slot depth, R-land and the rake face of rake face of horizontal width, K-major first flank and the second rear knife face of the arc surface (teeth groove bottom land arc surface) that in figure, 1-cutter hub, 2-handle of a knife, 3-land, 4-rake face, 5-land, 6-major first flank, the 7-the second rear knife face, 8-back of tooth, 9-land and rake face join, the width of B-cutter hub, W-groove angle, ɑ-the first relief angle, β-the second relief angle, f-land.
The specific embodiment
Below by embodiment, also by reference to the accompanying drawings the structure of small diameter inner hole reamer described in the utility model is described further.
Embodiment 1
Described in the present embodiment, small diameter inner hole reamer is for processing the aperture of aperture d=1mm on being the part of 40Cr, 45# steel at material.
Described in the present embodiment, as shown in Figure 1 and Figure 2, cutter hub 1 and the handle of a knife 2 by high-speed steel, made form the structure of small diameter inner hole reamer, and cutter hub 1 profile of tooth blade identical by two-strip structure and that be centrosymmetric forms, and the width B of cutter hub is 0.6mm.Described profile of tooth blade is joined and surrounds successively by land 3, rake face 4, land 5, major first flank 6, the second rear knife face 7 and the back of tooth 8.
The structure of profile of tooth blade each several part is as follows:
As shown in Figure 2, rake face 4 is vertical guide and the center of crossing cutter hub, and the angle of rake face and vertical guide is anterior angle, and the height h of rake face is capacity chip slot depth, and described anterior angle is 0 °, described capacity chip slot depth h=0.18mm; Land 3 is inclined-plane, and land and rake face 4 join by arc surface 9, the radius R=0.1mm of described arc surface, and land 3 is groove angle with the angle W of rake face 4, described groove angle is 120 °; Described land 5 be center take cutter hub as the center of circle, the arc surface of radius=0.5mm, the horizontal width f=0.1mm of land; Major first flank 6 is inclined-plane, and the angle α of major first flank and horizontal plane is the first relief angle, described the first relief angle α=20 °, and the intersection of major first flank and the second rear knife face is K to the distance of rake face, described K=0.2mm; The second rear knife face 7 is inclined-plane, and the angle β of the second rear knife face and horizontal plane is the second relief angle, described the second relief angle β=40 °; The described back of tooth 8 is vertical guide, parallel with rake face 4.
Described in the present embodiment, small diameter inner hole reamer is for processing the aperture of aperture d=2mm on being the part of titanium alloy T c4, Tc9 at material.
Described in the present embodiment, as shown in Figure 1 and Figure 2, cutter hub 1 and the handle of a knife 2 by high-speed steel, made form the structure of small diameter inner hole reamer, and cutter hub 1 profile of tooth blade identical by two-strip structure and that be centrosymmetric forms, and the width B of cutter hub is 1.4mm.Described profile of tooth blade is joined and surrounds successively by land 3, rake face 4, land 5, major first flank 6, the second rear knife face 7 and the back of tooth 8.
The structure of profile of tooth blade each several part is as follows:
As shown in Figure 2, rake face 4 is vertical guide and the center of crossing cutter hub, and the angle of rake face and vertical guide is anterior angle, and the height h of rake face is capacity chip slot depth, and described anterior angle is 0 °, described capacity chip slot depth h=0.32mm; Land 3 is inclined-plane, and land and rake face 4 join by arc surface 9, the radius R=0.3mm of described arc surface, and land 3 is groove angle with the angle W of rake face 4, described groove angle is 120 °; Described land 5 be center take cutter hub as the center of circle, the arc surface of radius=1mm, the horizontal width f=0.1mm of land; Major first flank 6 is inclined-plane, and the angle α of major first flank and horizontal plane is the first relief angle, described the first relief angle α=15 °, and the intersection of major first flank and the second rear knife face is K to the distance of rake face, described K=0.3mm; The second rear knife face 7 is inclined-plane, and the angle β of the second rear knife face and horizontal plane is the second relief angle, described the second relief angle β=40 °; The described back of tooth 8 is vertical guide, parallel with rake face 4.
Embodiment 3
Described in the present embodiment, small diameter inner hole reamer is for processing the aperture of aperture d=3mm on being the part of high temperature alloy GH33 at material.
Described in the present embodiment, as shown in Figure 1 and Figure 2, cutter hub 1 and the handle of a knife 2 by high-speed steel, made form the structure of small diameter inner hole reamer, and cutter hub 1 profile of tooth blade identical by two-strip structure and that be centrosymmetric forms, and the width B of cutter hub is 1.5mm.Described profile of tooth blade is joined and surrounds successively by land 3, rake face 4, land 5, major first flank 6, the second rear knife face 7 and the back of tooth 8.
The structure of profile of tooth blade each several part is as follows:
As shown in Figure 2, rake face 4 is vertical guide and the center of crossing cutter hub, and the angle of rake face and vertical guide is anterior angle, and the height h of rake face is capacity chip slot depth, and described anterior angle is 0 °, described capacity chip slot depth h=0.50mm; Land 3 is inclined-plane, and land and rake face 4 join by arc surface 9, the radius R=0.3mm of described arc surface, and land 3 is groove angle with the angle W of rake face 4, described groove angle is 120 °; Described land 5 be center take cutter hub as the center of circle, the arc surface of radius=1.5mm, the horizontal width f=0.1mm of land; Major first flank 6 is inclined-plane, and the angle α of major first flank and horizontal plane is the first relief angle, described the first relief angle α=15 °, and the intersection of major first flank and the second rear knife face is K to the distance of rake face, described K=0.3mm; The second rear knife face 7 is inclined-plane, and the angle β of the second rear knife face and horizontal plane is the second relief angle, described the second relief angle β=40 °; The described back of tooth 8 is vertical guide, parallel with rake face 4.
Claims (3)
1. a small diameter inner hole reamer, cutter hub (1) and the handle of a knife (2) by high-speed steel, made form, it is characterized in that cutter hub (1) profile of tooth blade identical by two-strip structure and that be centrosymmetric forms, the width (B) of cutter hub is 0.5d～0.7d, described profile of tooth blade joins and surrounds successively, the aperture that described d is processed hole by land (3), rake face (4), land (5), major first flank (6), the second rear knife face (7) and the back of tooth (8).
2. small diameter inner hole reamer according to claim 1, it is characterized in that described rake face (4) is vertical guide and the center of crossing cutter hub, the angle of rake face and vertical guide is anterior angle, the height (h) of rake face is capacity chip slot depth, described anterior angle is 0 °, described capacity chip slot depth is 0.18d～0.16d, the aperture that d is processed hole, described land (3) is inclined-plane, and the angle (W) of land and rake face is groove angle, and described groove angle is 120 °, described land (5) be center take cutter hub as the center of circle, 1/2nd apertures in processed hole are the arc surface of radius, the horizontal width (f) of land is 0.1mm, described major first flank (6) is inclined-plane, the angle (α) of major first flank and horizontal plane is the first relief angle, the intersection of major first flank and the second rear knife face to the distance of rake face is K, described the second rear knife face (7) is inclined-plane, the angle (β) of the second rear knife face and horizontal plane is the second relief angle, the described back of tooth (8) is parallel with rake face (4), when the aperture=1mm～1.5mm in processed hole, described the first relief angle (α)=20 °, K=0.2mm, described the second relief angle (β)=40 °, when the aperture≤3mm in the processed hole of 1.5mm <, described the first relief angle (α)=15 °, K=0.3mm, the second relief angle (β)=40 °.
3. according to small diameter inner hole reamer described in claim 1 or 2, it is characterized in that land (3) and rake face (4) join by arc surface (9), when the aperture=1mm～1.5mm in processed hole, radius (the R)=0.1mm of described arc surface, when the aperture≤3mm in the processed hole of 1.5mm <, radius (the R)=0.3mm of described arc surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320723782.2U CN203541736U (en) | 2013-11-15 | 2013-11-15 | Reamer for small-diameter internal holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320723782.2U CN203541736U (en) | 2013-11-15 | 2013-11-15 | Reamer for small-diameter internal holes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203541736U true CN203541736U (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320723782.2U Expired - Fee Related CN203541736U (en) | 2013-11-15 | 2013-11-15 | Reamer for small-diameter internal holes |
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| Country | Link |
|---|---|
| CN (1) | CN203541736U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103624330A (en) * | 2013-11-15 | 2014-03-12 | 成都发动机（集团）有限公司 | Small-diameter internal reamer |
-
2013
- 2013-11-15 CN CN201320723782.2U patent/CN203541736U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103624330A (en) * | 2013-11-15 | 2014-03-12 | 成都发动机（集团）有限公司 | Small-diameter internal reamer |
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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: 20140416 Termination date: 20211115 |
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| CF01 | Termination of patent right due to non-payment of annual fee |