CN203197416U - Double-edge buttress thread chaser - Google Patents
Double-edge buttress thread chaser Download PDFInfo
- Publication number
- CN203197416U CN203197416U CN 201320128677 CN201320128677U CN203197416U CN 203197416 U CN203197416 U CN 203197416U CN 201320128677 CN201320128677 CN 201320128677 CN 201320128677 U CN201320128677 U CN 201320128677U CN 203197416 U CN203197416 U CN 203197416U
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- tooth
- double
- cutting
- working face
- buttress thread
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Abstract
The utility model discloses a double-edge buttress thread chaser which comprises a chaser body. Two adjacent side faces of the chaser body are provided with a first working face and a second working face respectively, and the side face opposite to the first working face is provided with a positioning face. The first working face and the second working face are respectively provided with a cutting tooth part which is composed of an accurate cutting tooth and a rough cutting tooth. The tooth roots of the accurate cutting teeth are provided with side blades. The accurate cutting teeth and the rough cutting teeth are both of a trapezoid-tooth like shape. The tooth shape of the accurate cutting teeth is matched with a thread shape, and the tooth shape of the rough cutting teeth is smaller than the thread shape. A positioning hole is formed in the chaser body. A double-edge tooth shape structure is used in the double-edge buttress thread chaser, and the utilization rate and the machining efficiency of products are high. The design of the side blades on the tooth roots of the accurate cutting teeth enables the cutting force of the entire blade to be decreased. The freestyle cutting mode is used in the double-edge buttress thread chaser, the rough cutting teeth are not in all shape cutting, the cutting force is small, and the service life of the blade is long.
Description
Technical field
The utility model relates to the threading tool field, particularly double-sided blade buttress thread chasing tool.
Background technology
Along with the oil-gas exploration exploitation constantly develops in depth, geological conditions is complicated day by day, and oil well pipe is faced with serious test, and is more and more higher to the requirement of oil well pipe.Buttress thread oil pipe tensile strength is higher, has higher bonding strength, so be widely applied in the oil pipe.Harsh conditions double thread cutter proposes requirements at the higher level, and the precision of double thread and the requirement of surface quality are more and more higher, and requires the high-speed and high-efficiency cutting.In turning processing, buttress thread is because total cutting depth is big, and tool dimension is subjected to the restriction of trapezoidal thread physical dimension.Existing tool stiffness is poor on the market, and its cutting way all is to adopt non-free cutting mode, and each cutting teeth is full tooth form cutting, and cutting resistance is big, and chip removal is not smooth, and iron filings easily twine.If adopt less bite, efficient is too low during roughing, bite bigger a little often produce spring sword or corner wears, time-consuming effort again in actual production, and size that can not better controlled processing.In addition, the cutter structure of Shi Yonging mostly is single face bidentate shape or three odontoids in the market, adopts repeatedly feed to finish the processing of profile of tooth, and working (machining) efficiency is low.
The utility model content
For solving the problems of the technologies described above, the purpose of this utility model is to provide that a kind of cutting resistance is little, working (machining) efficiency is high, chip removal double-sided blade buttress thread chasing tool smoothly.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the utility model is achieved through the following technical solutions:
A kind of double-sided blade buttress thread chasing tool comprises cutter hub, and described cutter hub is respectively equipped with first working face and second working face on adjacent two sides, and the relative side of described first working face is provided with locating surface; Be respectively equipped with the cutting teeth portion that is formed by finishing tooth and roughing tooth on described first working face and second working face; The tooth root of described finishing tooth has side edge; Described finishing tooth and roughing tooth are closely trapezoidal toothed; Described finishing tooth profile of tooth and described form of thread are complementary, and described roughing tooth profile of tooth is less than described form of thread; Described cutter hub is provided with locating hole.
Further, the profile of tooth of described finishing tooth and roughing tooth by tooth top circular arc-straight line profile of tooth, tooth at the bottom of circular arc-straight line profile of tooth and flank straight line profile of tooth form.
Further, the side edge surplus of described side edge is 0.1 ± 0.1mm, the side edge angle is 5 ° 30 ' ± 45 '.
Further, described cutter hub is for closely square.
Further, the finishing tooth in described each cutting teeth portion and the quantity of roughing tooth respectively are one.
Technique scheme has following beneficial effect:
1) the utility model double-sided blade buttress thread chasing tool has two working faces, improves the product utilization rate, also saves the time that the workman changes cutter and tool setting, the working (machining) efficiency height.
2) the utility model double-sided blade buttress thread chasing tool has side edge at the tooth root place of finishing tooth, and has designed rational side edge surplus and side edge angle, makes cutting resistance reduce.
3) cutting way of the utility model double-sided blade buttress thread chasing tool is the free style cutting way, when cutting, because the profile of tooth of roughing tooth is less than form of thread, it or not the holotype cutting, so cutting resistance is less than the cutting force of holotype cutting during cutting, chip removal is smooth and easy, the long service life of cutter.
Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of specification, below with the specific embodiment of the present utility model and conjunction with figs. this patent is elaborated.
Description of drawings
Fig. 1 is the structural representation of the utility model double-sided blade buttress thread chasing tool.
Fig. 2 is the generalized section at the finishing tooth tooth root side edge C-C place of double-sided blade buttress thread chasing tool shown in Figure 1.
The specific embodiment
As shown in Figure 1, the utility model double-sided blade buttress thread chasing tool comprises cutter hub 1, and described cutter hub is respectively equipped with first working face 21 and second working face 22 on 1 adjacent two sides, and described first working face 21 relative sides are provided with locating surface 3; Be respectively equipped with the cutting teeth portion that is formed by finishing tooth 4 and roughing tooth 5 on described first working face 21 and second working face 22.The design of two working faces makes working (machining) efficiency and product utilization rate improve.
The tooth root of described finishing tooth 4 has side edge.As shown in Figure 2, in the present embodiment, the side edge surplus A of described side edge is designed to 0.1 ± 0.1mm, and the side edge angle B is designed to 5 ° 30 ' ± 45 '.
As shown in Figure 1, described finishing tooth 4 and roughing tooth 5 are closely trapezoidal toothed, are used for the processing buttress thread; Described finishing tooth 4 profiles of tooth and described form of thread are complementary, and described roughing tooth 5 profiles of tooth are less than described form of thread; Have only finishing tooth 4 to be full thread form cutting, make the cutting cross section comprise a complete form of thread, guaranteed geometric accuracy and the surface smoothness of thread tooth.Roughing tooth 5 is not the holotype cutting, makes cutting resistance reduce.
The cutter hub 1 of described double-sided blade buttress thread chasing tool is provided with locating hole 6, is used for the blade installation is positioned knife rest.
The profile of tooth of described finishing tooth 4 and roughing tooth 5 by tooth top circular arc-straight line profile of tooth, tooth at the bottom of circular arc-straight line profile of tooth and flank straight line profile of tooth form.Circular arc radian at the bottom of, tooth top circular arc poor by tooth top reasonable in design and the tooth not only guarantees the precision of product to make that also cutting force reduces, the long service life of cutter.
In the present embodiment, cutter hub 1 squarish of double-sided blade buttress thread chasing tool.Finishing tooth in each cutting teeth portion and the quantity of roughing tooth are set to each one.
By reference to the accompanying drawings embodiment of the present utility model has been done detailed description above, but the utility model is not limited to above-mentioned embodiment, in the ken that one skilled in the relevant art possesses, can also under the prerequisite that does not break away from the utility model aim, make a variety of changes.
Claims (5)
1. a double-sided blade buttress thread chasing tool comprises cutter hub, it is characterized in that: described cutter hub is respectively equipped with first working face and second working face on adjacent two sides, and the relative side of described first working face is provided with locating surface; Be respectively equipped with the cutting teeth portion that is formed by finishing tooth and roughing tooth on described first working face and second working face; The tooth root of described finishing tooth has side edge; Described finishing tooth and roughing tooth are closely trapezoidal toothed; Described finishing tooth profile of tooth and described form of thread are complementary, and described roughing tooth profile of tooth is less than described form of thread; Described cutter hub is provided with locating hole.
2. double-sided blade buttress thread chasing tool according to claim 1 is characterized in that: the profile of tooth of described finishing tooth and roughing tooth by tooth top circular arc-straight line profile of tooth, tooth at the bottom of circular arc-straight line profile of tooth and flank straight line profile of tooth form.
3. double-sided blade buttress thread chasing tool according to claim 1, it is characterized in that: the side edge surplus of described side edge is 0.1 ± 0.1mm, the side edge angle is 5 ° 30 ' ± 45 '.
4. double-sided blade buttress thread chasing tool according to claim 1, it is characterized in that: described cutter hub is for closely square.
5. double-sided blade buttress thread chasing tool according to claim 1, it is characterized in that: the finishing tooth in described each cutting teeth portion and the quantity of roughing tooth respectively are one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320128677 CN203197416U (en) | 2013-03-21 | 2013-03-21 | Double-edge buttress thread chaser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320128677 CN203197416U (en) | 2013-03-21 | 2013-03-21 | Double-edge buttress thread chaser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203197416U true CN203197416U (en) | 2013-09-18 |
Family
ID=49141556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320128677 Expired - Fee Related CN203197416U (en) | 2013-03-21 | 2013-03-21 | Double-edge buttress thread chaser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203197416U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103406607A (en) * | 2013-03-21 | 2013-11-27 | 昆山华辰精密工具有限公司 | Double-edged buttress thread chasing tool blade |
| CN103624343A (en) * | 2013-11-28 | 2014-03-12 | 昆山华辰精密工具有限公司 | Tool for machining casing pipe with buttress threads |
-
2013
- 2013-03-21 CN CN 201320128677 patent/CN203197416U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103406607A (en) * | 2013-03-21 | 2013-11-27 | 昆山华辰精密工具有限公司 | Double-edged buttress thread chasing tool blade |
| CN103624343A (en) * | 2013-11-28 | 2014-03-12 | 昆山华辰精密工具有限公司 | Tool for machining casing pipe with buttress threads |
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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: 20130918 Termination date: 20210321 |