CN203448724U - Stepped reaming tool - Google Patents
Stepped reaming tool Download PDFInfo
- Publication number
- CN203448724U CN203448724U CN201320473159.6U CN201320473159U CN203448724U CN 203448724 U CN203448724 U CN 203448724U CN 201320473159 U CN201320473159 U CN 201320473159U CN 203448724 U CN203448724 U CN 203448724U
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- China
- Prior art keywords
- tool
- stepped
- staged
- cutter hub
- utility
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- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a stepped reaming tool. The stepped reaming tool comprises a tool rod and a stepped tool body. The tool rod is provided with a first locking pin hole, the stepped tool body is provided with a second locking pin hole matched with the first locking pin hole, and the tool rod is connected with the stepped tool body through a cylindrical pin to form an integrated structure. Because the stepped tool body is arranged on the tool rod and is used for radial and axial stepped and layered cutting, requirements for product process precision are met, cutting force and cutting heat in the cutting process are greatly reduced, durability of the tool is improved, and part machining precision is improved as well.
Description
Technical field
The utility model relates to process tool, relates in particular to a kind of staged countersink.
Background technology
The object of spot-facing is in order to guarantee the perpendicularity of aperture and centerline hole, so that the part position being connected with hole is correct, connects reliable.Connection nose end ream at workpiece goes out cylindricality or tapered counterbore, with counter-sunk screw, imbeds in hole relevant part is coupled together, and makes outward appearance neat, and rigging position is compact.By aperture flattening end surface, and vertical with centerline hole, can make the end face of connecting bolt (or nut) and connector keep good contact.But countersink of the prior art is simple in structure, especially at the bottom of the fork of auto parts left and right turn joint during inner plane fine finishining, cutter easily produces that the problems such as tipping, breakage are serious, and tool life is low, and processing is of poor quality afterwards, and overall price/performance ratio is lower.
Therefore, prior art needs further improve and develop.
Utility model content
In view of above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of staged countersink, to improve tool life, improves the precision to parts machining.
The technical solution of the utility model is as follows:
A kind of staged countersink, it comprises knife bar and staged cutter hub, wherein, on described knife bar, be provided with the first lockpin hole, on described staged cutter hub, be provided with second lockpin hole suitable with described the first lockpin hole, described knife bar is connected by a straight pin with described staged cutter hub, forms integral structure.
Described staged countersink, wherein, is at least provided with two blades on described staged cutter hub, blade is ladder-like arranged on described cutter hub.
Described staged countersink, wherein, is all provided with a chip dividing groove on each blade.
Described staged countersink, wherein, described chip dividing groove is inverted V-shaped and is arranged on corresponding blade.
The utility model provides a kind of staged countersink, staged cutter hub is set on knife bar, its for radially with axial step layered cutting, both met Product Process required precision, greatly reduce again cutting force and the heat in metal cutting of working angles, improve tool life, improved again the precision to parts machining simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of staged countersink in the utility model;
Fig. 2 is the structural representation of staged cutter hub in the utility model;
Fig. 3 is the structural representation of chip dividing groove in the utility model;
Fig. 4 is the cross-sectional view of blade in the utility model.
The specific embodiment
The utility model provides a kind of staged countersink, for making the purpose of this utility model, technical scheme and effect clearer, clear and definite, below the utility model is further described.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
The utility model provides a kind of staged countersink, as shown in Figure 1, Figure 2 with shown in Fig. 4, it comprises knife bar 1 and staged cutter hub 2, on described knife bar 1, be provided with the first lockpin hole, on described staged cutter hub 2, be provided with second lockpin hole 3 suitable with described the first lockpin hole, described knife bar 1 is connected by a straight pin with described staged cutter hub 2, forms integral structure.
Further, be at least provided with two blades 4 on described staged cutter hub 2, blade 4 is ladder-like arranged on described cutter hub 2, certainly can to blade number, suitably increase according to concrete actual conditions.The cutting edge of described blade 4 can be semicircle, spirality or other shapes.And on each blade 4, be all provided with a chip dividing groove 5, as shown in Figure 3, described chip dividing groove 5 is inverted V-shaped and is arranged on corresponding blade 4, to add man-hour be the dextrad cutting auto parts that turn clockwise to the utility model actual, most of smear metal is by corresponding blade 4 excisions of end face, smear metal fractures under the effect of described chip dividing groove 5, does not affect the precision of processing plane.
Should be understood that; application of the present utility model is not limited to above-mentioned giving an example; for those of ordinary skills, can be improved according to the above description or convert, all these improvement and conversion all should belong to the protection domain of the utility model claims.
Claims (3)
1. a staged countersink, it comprises knife bar and staged cutter hub, it is characterized in that, on described knife bar, be provided with the first lockpin hole, on described staged cutter hub, be provided with second lockpin hole suitable with described the first lockpin hole, described knife bar is connected by a straight pin with described staged cutter hub, forms integral structure
;on described cutter hub, be at least provided with two blades, blade is ladder-like arranged on described cutter hub.
2. staged countersink according to claim 1, is characterized in that, is all provided with a chip dividing groove on each blade.
3. staged countersink according to claim 2, is characterized in that, described chip dividing groove is inverted V-shaped and is arranged on corresponding blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320473159.6U CN203448724U (en) | 2013-08-05 | 2013-08-05 | Stepped reaming tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320473159.6U CN203448724U (en) | 2013-08-05 | 2013-08-05 | Stepped reaming tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203448724U true CN203448724U (en) | 2014-02-26 |
Family
ID=50128628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320473159.6U Expired - Fee Related CN203448724U (en) | 2013-08-05 | 2013-08-05 | Stepped reaming tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203448724U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114101758A (en) * | 2021-12-23 | 2022-03-01 | 北京新风航天装备有限公司 | Self-guiding flat-bottom countersink drill for flat-bottom blind hole |
-
2013
- 2013-08-05 CN CN201320473159.6U patent/CN203448724U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114101758A (en) * | 2021-12-23 | 2022-03-01 | 北京新风航天装备有限公司 | Self-guiding flat-bottom countersink drill for flat-bottom blind hole |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140226 Termination date: 20160805 |