CN203124882U - Blade for processing buttress threads of petroleum pipe - Google Patents

Blade for processing buttress threads of petroleum pipe Download PDF

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Publication number
CN203124882U
CN203124882U CN 201320128679 CN201320128679U CN203124882U CN 203124882 U CN203124882 U CN 203124882U CN 201320128679 CN201320128679 CN 201320128679 CN 201320128679 U CN201320128679 U CN 201320128679U CN 203124882 U CN203124882 U CN 203124882U
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CN
China
Prior art keywords
tooth
cutting
blade
roughing
profile
Prior art date
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
Application number
CN 201320128679
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Chinese (zh)
Inventor
李长清
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KUNSHAN HUACHEN PRECISION TOOL CO Ltd
Original Assignee
KUNSHAN HUACHEN PRECISION TOOL CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by KUNSHAN HUACHEN PRECISION TOOL CO Ltd filed Critical KUNSHAN HUACHEN PRECISION TOOL CO Ltd
Priority to CN 201320128679 priority Critical patent/CN203124882U/en
Application granted granted Critical
Publication of CN203124882U publication Critical patent/CN203124882U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a blade for processing buttress threads of a petroleum pipe. The blade comprises a blade body, a cutting tooth part and a positioning hole, wherein a working surface is formed on one side surface of the blade body, and a positioning surface is formed on the other opposite side surface; the positioning hole is formed in the blade body; the cutting tooth part is formed on the working surface and comprises a precision cutting tooth and four rough cutting teeth; the precision cutting tooth and the rough cutting teeth adopt nearly-trapezoid tooth profiles; each nearly-trapezoid tooth profile comprises a tooth crest circular-linear tooth profile, a tooth root circular-linear tooth profile and tooth flank linear tooth profiles; the tooth profile of the precision cutting tooth is matched with a thread tooth profile, and the tooth profiles of the rough cutting teeth are smaller than the thread tooth profile; and differences between the tooth crest of the precision cutting tooth and the tooth crests of the rough cutting teeth are sequentially increased. The blade for processing the buttress threads of the petroleum pipe is small in cutting resistance, high in processing efficiency and smooth in chip removal.

Description

Petroleum pipeline buttress thread processing blade
Technical field
The utility model relates to the threading tool field, particularly a kind of petroleum pipeline buttress thread processing blade.
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 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 petroleum pipeline buttress thread processing smoothly blade.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the utility model is achieved through the following technical solutions:
A kind of petroleum pipeline buttress thread processing blade comprises cutter hub, cutting teeth portion and locating hole, and it is characterized in that: described cutter hub side is provided with working face, and another relative side is provided with locating surface; Described locating hole is located on the cutter hub; Described cutting teeth portion is located on the described working face, and is made up of 1 finishing tooth and 4 roughing tooths; Described finishing tooth and roughing tooth are closely trapezoidal toothed, this near trapezoidal toothedly is made up of circular arc-straight line profile of tooth at the bottom of tooth top circular arc-straight line profile of tooth, the tooth and flank straight line profile of tooth; 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 roughing tooth increases successively with respect to the tooth top difference of described finishing tooth.
Preferably, described 1 finishing tooth and 4 roughing tooths are arranged according to the order of successively decreasing highly successively along described working face, make described cutting teeth portion form a gradient.
Preferably, described roughing tooth respectively is 0.10 ± 0.06mm, 0.32 ± 0.06mm, 0.64 ± 0.06mm, 1.10 ± 0.06mm with respect to the tooth top difference of described finishing tooth; Difference respectively is 0.010+0.04mm, 0.26 ± 0.02mm, 0.43 ± 0.02mm at the bottom of the tooth.
Preferably, described cutter hub is trapezoidal cutter hub.
Preferably, described locating hole is manhole.
Technique scheme has following beneficial effect:
1) profile of tooth of the finishing tooth of the utility model petroleum pipeline buttress thread processing blade and roughing tooth is used for processing and shaves the shape screw thread partially for closely trapezoidal, has adopted rational tooth top difference and tooth low poor, and cutting force is little.
2) the utility model petroleum pipeline buttress thread processing blade adopts five tooth profiles of tooth of 1 finishing tooth and 4 finishing tooths, just can finish processing maximum twice, better rigidity lathe time processing just can be finished the processing of workpiece, and production and processing efficient is the several times of existing process tool.
2) cutting way of the utility model petroleum pipeline buttress thread processing blade is the free style cutting way, by the asymptotic cutting of roughing tooth and finishing tooth, has solved the load problem pockety between each tooth.And, in when cutting because the profile of tooth of roughing tooth less than form of thread, is not the holotype cutting, so during cutting cutting resistance less than the cutting force of holotype cutting.
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 petroleum pipeline buttress thread processing blade.
Fig. 2 is the cutting teeth portion structural representation of petroleum pipeline buttress thread processing blade shown in Figure 1.
The specific embodiment
As depicted in figs. 1 and 2, the utility model petroleum pipeline buttress thread processing blade comprises cutter hub 1, cutting teeth portion 3 and locating hole 5, and described cutter hub 1 side is provided with working face 2, and another relative side is provided with locating surface 4; Described locating hole 5 is located on the cutter hub 1; Described cutting teeth portion 3 is located on the described working face 2, and is made up of 1 finishing tooth 31 and 4 roughing tooths 32; Described finishing tooth 31 and roughing tooth 32 are closely trapezoidal toothed, this near trapezoidal toothedly is made up of circular arc-straight line profile of tooth at the bottom of tooth top circular arc-straight line profile of tooth, the tooth and flank straight line profile of tooth; Described finishing tooth 31 profiles of tooth and described form of thread are complementary, and described roughing tooth 32 profiles of tooth are less than described form of thread; Described roughing tooth 32 increases successively with respect to the tooth top difference A of described finishing tooth 31.
The finishing tooth 31 of this petroleum pipeline buttress thread processing blade and roughing tooth 32 profiles of tooth are for closely trapezoidal toothed, thereby are used for processing buttress thread.
This petroleum pipeline buttress thread processing blade adopts free style cutting way, and load is evenly distributed between each tooth, when cutting because the profile of tooth of roughing tooth 32 less than form of thread, is not the holotype cutting, thus during cutting cutting resistance less than the cutting force of holotype cutting.Finishing tooth 31 is the holotype cutting, makes the cutting cross section comprise a complete form of thread, to guarantee geometric accuracy and the surface smoothness of thread tooth.
As shown in Figure 2,1 finishing tooth 31 and 4 roughing tooths 32 are arranged according to the order of successively decreasing highly successively along described working face 2, make described cutting teeth portion 3 form a gradient.Adopt five tooth profiles of tooth, production and processing efficient improves.Roughing tooth 322 respectively is 0.10 ± 0.06mm, 0.32 ± 0.06mm, 0.64 ± 0.06mm, 1.10 ± 0.06mm with respect to the tooth top difference A of finishing tooth 31; Difference B respectively is 0.010+0.04mm, 0.26 ± 0.02mm, 0.43 ± 0.02mm at the bottom of the tooth.
In the present embodiment, the cutter hub 1 of this petroleum pipeline buttress thread processing cutter is trapezoidal cutter hub.The locating hole 5 that is positioned on the cutter hub 1 is manhole, is used for blade is installed in knife rest.
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 petroleum pipeline buttress thread processing blade comprises cutter hub, cutting teeth portion and locating hole, and it is characterized in that: described cutter hub side is provided with working face, and another relative side is provided with locating surface; Described locating hole is located on the cutter hub; Described cutting teeth portion is located on the described working face, and is made up of 1 finishing tooth and 4 roughing tooths; Described finishing tooth and roughing tooth are closely trapezoidal toothed, this near trapezoidal toothedly is made up of circular arc-straight line profile of tooth at the bottom of tooth top circular arc-straight line profile of tooth, the tooth and flank straight line profile of tooth; 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 roughing tooth increases successively with respect to the tooth top difference of described finishing tooth.
2. petroleum pipeline buttress thread according to claim 1 processing blade is characterized in that: described 1 finishing tooth with 4 roughing tooths along described working face according to the order arrangement of successively decreasing highly successively, make described cutting teeth portion form a gradient.
3. petroleum pipeline buttress thread according to claim 2 is processed blade, and it is characterized in that: described roughing tooth respectively is 0.10 ± 0.06mm, 0.32 ± 0.06mm, 0.64 ± 0.06mm, 1.10 ± 0.06mm with respect to the tooth top difference of described finishing tooth; Difference respectively is 0.010+0.04mm, 0.26 ± 0.02mm, 0.43 ± 0.02mm at the bottom of the tooth.
4. petroleum pipeline buttress thread according to claim 1 is processed blade, and it is characterized in that: described cutter hub is trapezoidal cutter hub.
5. petroleum pipeline buttress thread according to claim 1 is processed blade, and it is characterized in that: described locating hole is manhole.
CN 201320128679 2013-03-21 2013-03-21 Blade for processing buttress threads of petroleum pipe Expired - Fee Related CN203124882U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320128679 CN203124882U (en) 2013-03-21 2013-03-21 Blade for processing buttress threads of petroleum pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320128679 CN203124882U (en) 2013-03-21 2013-03-21 Blade for processing buttress threads of petroleum pipe

Publications (1)

Publication Number Publication Date
CN203124882U true CN203124882U (en) 2013-08-14

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320128679 Expired - Fee Related CN203124882U (en) 2013-03-21 2013-03-21 Blade for processing buttress threads of petroleum pipe

Country Status (1)

Country Link
CN (1) CN203124882U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103128381A (en) * 2013-03-21 2013-06-05 昆山华辰精密工具有限公司 Slant ladder thread machining blade of petroleum pipeline
CN105057715A (en) * 2015-09-06 2015-11-18 昆山华辰精密工具有限公司 Double-hole double-edged blade

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103128381A (en) * 2013-03-21 2013-06-05 昆山华辰精密工具有限公司 Slant ladder thread machining blade of petroleum pipeline
CN105057715A (en) * 2015-09-06 2015-11-18 昆山华辰精密工具有限公司 Double-hole double-edged blade

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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: 20130814

Termination date: 20210321