CN201524813U - Boring cutter for machining automobile engine valve base ring - Google Patents
Boring cutter for machining automobile engine valve base ring Download PDFInfo
- Publication number
- CN201524813U CN201524813U CN2009202579969U CN200920257996U CN201524813U CN 201524813 U CN201524813 U CN 201524813U CN 2009202579969 U CN2009202579969 U CN 2009202579969U CN 200920257996 U CN200920257996 U CN 200920257996U CN 201524813 U CN201524813 U CN 201524813U
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- automobile engine
- engine valve
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Abstract
The utility model discloses a boring cutter for machining automobile engine valve base ring, which comprises a cutter body, a cutting part is scarf welded at the middle part of one side of the front end of the cutter body, the angle of a first back angle of the cutting part is 10 degrees +/- 10 seconds. The cutting blade of the cutting part is sharper when the back angle is increased to about 10 degrees, the service life of the cutter is improved, meanwhile the blade collapse problem of the cutter is also solved. The utility model has advantages of simple structure, reasonable design and easy operation, can improve the cutting efficiency, prolong the service life of the cutting part, improve the machining precision of the workpiece, thereby reducing the production costs of the enterprise and hoisting the quality of the enterprise product, and the utility model creates higher economic benefits for the enterprise.
Description
Technical field
The utility model belongs to the Machining Technology field, particularly relates to a kind of boring cutter of processing automobile engine valve seat seat ring.
Background technology
The boring cutter of existing processing automobile engine valve seat seat ring comprises cutter hub, and cutter hub front end one side upper surface is provided with cutting tip, and first relief angle of cutting tip is 6 °; Cutting tip mainly is composite polycrystal-diamond (or polycrystalline cubic boron nitride composite sheet), this composite sheet is formed through the HTHP compacting by polycrystalline diamond layer (or polycrystalline cubic boron nitride layer) and hard alloy layer, and composite sheet is in the same place by solder bond with cutter hub.The advantage of this boring cutter is to be convenient to buy to use, but also has following shortcoming: first relief angle is 6 ° and causes cutting edge sharp inadequately, the easy tipping of cutter, and the processing life-span is short, and stock-removing efficiency is restricted, and is squeezed easily in the working angles and weares and teares.
The utility model content
The purpose of this utility model is to provide the boring cutter of the sharper and durable economy of a kind of cutting edge.
For achieving the above object, the boring cutter that is used for processing automobile engine valve seat seat ring of the present utility model comprises cutter hub, and the middle part scarfweld of cutter hub front end one side is provided with cutting tip, the angle of first relief angle of described cutting tip is 10 ° ± 10 '.
As a kind of improvement of the present utility model, the angle of first relief angle of described cutting tip is 10 °.
The utlity model has following advantage:
1. make the cutting edge of cutting tip more sharp after relief angle increases to about 10 °, the service life of having improved cutter, also solved the tipping problem of cutter.
2. first relief angle is in the time of 10 °, and blade is not only sharp but also working stability is reliable, and service life is longer.
In a word, the utility model is simple in structure, reasonable in design, easy to use, can promote the service life of stock-removing efficiency, prolongation cutting tip, the machining accuracy of raising workpiece, thereby reduce the production cost of enterprise, promote the quality of enterprise product, for enterprise creates higher economic benefit.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the vertical view of Fig. 1.
The specific embodiment
As shown in Figure 1, the boring cutter that is used for processing automobile engine valve seat seat ring of the present utility model comprises cutter hub 1, the middle part of cutter hub 1 front end one side is provided with polycrystalline diamond (PCD) composite sheet as cutting tip, and this composite sheet is formed through the HTHP compacting by polycrystalline diamond layer and hard alloy layer.As shown in Figure 1, include polycrystalline diamond material layer 2 and hard alloy layer 3 from top to bottom as the composite polycrystal-diamond of cutting tip, polycrystalline diamond material layer 2 is compressed to one with hard alloy layer 3, and hard alloy layer 3 is welded on the cutter hub 1.The one side scarfweld of cutter hub 1 front end is provided with cutting tip, and the angle of the first relief angle α of described cutting tip is 10 °, and the angle of the second relief angle λ of cutting tip is 20 °.
Certainly, the utility model includes but not limited to present embodiment, is not to be necessary for accurate 10 ° as the angle of the cutting tip first relief angle α, but can be 10 ° ± 10 ' scope in value; And for example composite polycrystal-diamond is also replaceable is polycrystalline cubic boron nitride (PCBN) composite sheet, and this type of conversion all drops within the protection domain of the present utility model.
Claims (2)
1. be used for the boring cutter of processing automobile engine valve seat seat ring, comprise cutter hub, the middle part scarfweld of cutter hub front end one side is provided with cutting tip, it is characterized in that: the angle of first relief angle of described cutting tip is 10 ° ± 10 '.
2. the boring cutter that is used for processing automobile engine valve seat seat ring according to claim 1 is characterized in that: the angle of first relief angle of described cutting tip is 10 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202579969U CN201524813U (en) | 2009-11-10 | 2009-11-10 | Boring cutter for machining automobile engine valve base ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202579969U CN201524813U (en) | 2009-11-10 | 2009-11-10 | Boring cutter for machining automobile engine valve base ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201524813U true CN201524813U (en) | 2010-07-14 |
Family
ID=42516112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202579969U Expired - Fee Related CN201524813U (en) | 2009-11-10 | 2009-11-10 | Boring cutter for machining automobile engine valve base ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201524813U (en) |
-
2009
- 2009-11-10 CN CN2009202579969U patent/CN201524813U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100714 Termination date: 20131110 |