CN208787693U - A kind of two-sided chaser - Google Patents
A kind of two-sided chaser Download PDFInfo
- Publication number
- CN208787693U CN208787693U CN201821217295.8U CN201821217295U CN208787693U CN 208787693 U CN208787693 U CN 208787693U CN 201821217295 U CN201821217295 U CN 201821217295U CN 208787693 U CN208787693 U CN 208787693U
- Authority
- CN
- China
- Prior art keywords
- tooth
- formed tooth
- sided
- vane body
- chaser
- 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.)
- Active
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of two-sided chasers, belong to numerical control screw thread process tool field, and in particular to a kind of oil well pipe thread process tool.The cutter is mainly made of vane body, formed tooth one, formed tooth two, center hole structure, and uses symmetric design, has the characteristics that structure is simple, easy to change, stability is good, high-efficient, low manufacture cost.By the design to cutting tooth, screw processing quality is improved, reduces disqualification rate, cutter life and blade material utilization rate is improved, reduces the cost of charp tool, processing API round thread is can be widely used for, has a vast market foreground.
Description
Technical field
The utility model belongs to numerical control screw thread process tool field, and in particular to a kind of oil well pipe thread process tool.
Background technique
The special steel pipe that the borehole wall is fixed when tubing and casing is oil gas well mining, can be divided into surface pipe, skill depending on the application
Art casing and production string.The grade of steels such as Q125, P110, N80-Q, N80-1, J55, K55, API mark can be divided into according to different grade of steels
Quasi- thread type is tri- kinds of LC, SC, BC.The processing of API casing threads is mainly using forming tools such as chasers, at present in circle
The chaser of single-blade is generally used in screw thread process.But there are following major defects for single-point tool: 1) cannot after blade abrasion
It utilizes again, needs to recycle melting again and process, cause resource utilization low, processing cost is high；2) cutting tooth of single-blade chasing tool
Uniformly to cut, chip breaking is not easy to be discharged, and is easily wrapped in manufactured thread surface, scratches thread surface, leads to screw thread not
Properly, processing efficiency and lumber recovery are reduced.
Summary of the invention
The utility model is directed to the deficiency of existing round thread chasing tool, provides a kind of two-sided chaser, using symmetrically setting
The method of meter increases formed tooth, improves cutter life, designed by Optimize the forming scheme tooth, is conducive to chip breaking and is discharged, eliminates
Iron cuts the hidden danger for scratching screw thread.
In order to solve the above technical problems, the technical solution used in the present invention is:
A kind of two-sided chaser, including vane body (1), formed tooth one (2), formed tooth two (3), centre bore (4).Institute
It is symmetrical along vane body (1) diagonal line to state formed tooth one (2), formed tooth two (3), centre bore (4)；The formed tooth one (2), at
Shape tooth two (3) includes roughing formed tooth, semifinishing formed tooth, finishing formed tooth；The roughing formed tooth is located at
Vane body (1) diagonal line two sides are followed successively by semifinishing formed tooth, finishing formed tooth outward.When formed tooth one (2) is worn
After to a certain extent, that is, blade may be reversed, continue to process using formed tooth two (3), so that vane body (1) service life improves one
Times.The load of monodentate receiving can be effectively reduced in multiple tooth design, improves cutter life, improves processing efficiency.
Optimization, centre bore (4) is through-hole, as cutting fluid channel, meets process lubrication and cooling needs.
Optimization, roughing forming tooth angle (a) be 28.5 °~29.5 °, semifinishing shape tooth angle (b) be 29 °~30 °,
Finishing forming tooth angle (c) is 29.5 °~30.5 °, different formed tooth angle design, thus it is possible to vary iron cuts stress condition, has
Effect is disconnected to cut and row cuts, and eliminates the hidden danger for scratching screw thread.
Beneficial effect by adopting the above technical scheme is: round thread chasing tool service life is enhanced about more than once, and eliminates and cuts
Cut the hidden danger of winding screw thread, screw thread process efficiency and quality effectively promote, have structure is simple, easy to change, stability is good,
The characteristics of high-efficient, low manufacture cost.
Detailed description of the invention
Fig. 1 is two-edged knife structural schematic diagram: 1, vane body；2, formed tooth one；3, formed tooth two；4, centre bore.
Fig. 2 is one structural schematic diagram of formed tooth；21, roughing formed tooth；22, semifinishing formed tooth；23, it is finish-machined to
Shape tooth；A, roughing shapes tooth angle；B, semifinishing shapes tooth angle；C, finishing forming tooth angle.
Specific embodiment
To enable those skilled in the art to better understand the technical solution of the utility model, with reference to the accompanying drawing to this
Utility model is further described.It is necessarily pointed out that following embodiment is served only for making furtherly the design
It is bright, it should not be understood as the limitation to the design protection scope, professional and technical personnel in the field makes according to the content of the design
Some nonessential modifications and adaptations, still fall within the protection scope of the utility model.
FIG. 1 is a schematic structural view of the utility model, including vane body 1, formed tooth 1, formed tooth 23, centre bore 4.
Wherein formed tooth 1, formed tooth 23, centre bore 4 are symmetrical along 1 diagonal line of vane body.
Fig. 2 is one structural schematic diagram of formed tooth, including roughing formed tooth 21, semifinishing formed tooth 22, is finish-machined to
Shape tooth 23, wherein roughing forming tooth angle a is 29.5 °, semifinishing forming tooth angle b is 29.75 °, finishing forming tooth angle c is
30°。
Technical effect: average to process using the blade when processing 139.7 × 9.17 mm P110 LC petroleum casing pipe of Ф
130 groups/piece of screw thread increases by 150% or more compared with the single-blade chasing tool service life, and does not occur shaking line and step.
Claims (3)
1. a kind of two-sided chaser, it is characterised in that by vane body (1), formed tooth one (2), formed tooth two (3), centre bore
(4) structure composition, the formed tooth one (2), formed tooth two (3), centre bore (4) are symmetrical along vane body (1) diagonal line；It is described
Formed tooth one (2), formed tooth two (3) include roughing formed tooth, semifinishing formed tooth, finishing formed tooth；It is described thick
Tooth position is shaped in vane body (1) diagonal line two sides, is followed successively by semifinishing formed tooth, finishing formed tooth outward.
2. a kind of two-sided chaser according to claim 1, it is characterised in that centre bore (4) is through-hole.
3. a kind of two-sided chaser according to claim 1, it is characterised in that it is 28.5 ° that roughing, which shapes tooth angle (a),
~29.5 °, semifinishing forming tooth angle (b) be 29 °~30 °, to shape tooth angle (c) be 29.5 °~30.5 ° for finishing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821217295.8U CN208787693U (en) | 2018-07-30 | 2018-07-30 | A kind of two-sided chaser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821217295.8U CN208787693U (en) | 2018-07-30 | 2018-07-30 | A kind of two-sided chaser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208787693U true CN208787693U (en) | 2019-04-26 |
Family
ID=66203821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821217295.8U Active CN208787693U (en) | 2018-07-30 | 2018-07-30 | A kind of two-sided chaser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208787693U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111545779A (en) * | 2020-05-19 | 2020-08-18 | 成都工具研究所有限公司 | Complex-forming multi-tooth cutter and machining method and using method thereof |
-
2018
- 2018-07-30 CN CN201821217295.8U patent/CN208787693U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111545779A (en) * | 2020-05-19 | 2020-08-18 | 成都工具研究所有限公司 | Complex-forming multi-tooth cutter and machining method and using method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202356688U (en) | Twist drill bit cooling structure | |
| CN103240429B (en) | A kind of turning cutting tool of sample fast turning and adopt its sizing cutting process | |
| CN202317274U (en) | Diamond composite reamer for intermittent stepped deep hole processing | |
| CN208787693U (en) | A kind of two-sided chaser | |
| CN202278228U (en) | Integral twist drill for processing titanium alloy | |
| CN203459720U (en) | Worm drill bit capable of automatically cooling | |
| CN201677101U (en) | Diameter guiding combined cutting screw tap | |
| CN203197416U (en) | Double-edge buttress thread chaser | |
| CN205289971U (en) | Thread processing gang tool | |
| CN204747600U (en) | Cold drill bit in carbide | |
| CN204524375U (en) | integral alloy R type balance milling cutter | |
| CN204148601U (en) | A kind of Double-edged milling cutter | |
| CN104174902A (en) | High-precision inner-cooling stepped drill | |
| CN205200646U (en) | A smart milling cutter utensil for hub surface processing | |
| CN204892999U (en) | Two -sided angle of throat piece of two skies | |
| CN103909299B (en) | Diamond drill bit | |
| CN102179576A (en) | Guiding compound cutting screw tap based on different diameters | |
| CN207431362U (en) | A kind of single side side milling forming cutter | |
| CN206392928U (en) | A kind of milling cutter of high-speed cutting | |
| CN206393833U (en) | An a kind of segment type diamond beading | |
| CN204194986U (en) | The thread turning cutter of ball screw | |
| CN103252540A (en) | Thread machining tool | |
| CN205342021U (en) | Drill bit with diamond dust granule | |
| CN205341959U (en) | Follow -on spiral line cutter | |
| CN204476291U (en) | Tower-type multi-layer blade water-cooled drill bit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |