CN202162468U - Transpositional thread processing blade - Google Patents
Transpositional thread processing blade Download PDFInfo
- Publication number
- CN202162468U CN202162468U CN2011202729249U CN201120272924U CN202162468U CN 202162468 U CN202162468 U CN 202162468U CN 2011202729249 U CN2011202729249 U CN 2011202729249U CN 201120272924 U CN201120272924 U CN 201120272924U CN 202162468 U CN202162468 U CN 202162468U
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- China
- Prior art keywords
- basil
- regular polygon
- cutting
- cutter blade
- polygon cutter
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Abstract
The utility model discloses a transpositional thread processing blade which comprises an a regular polygon-shaped blade body formed by enclosing an upper surface, a lower surface and a plurality of side surfaces, wherein two cutting edge angles are formed at each angle part of a regular polygon of the regular polygon-shaped blade body, and the transpositional thread processing blade is characterized in that the tips of the two cutting edge angles extend out of the range of the regular polygon enclosed by side surface extension lines of the regular polygon-shaped blade body. The transpositional thread processing blade has the advantages of large chip removal space, smooth chip removal, good cutting quality and high processing efficiency.
Description
Technical field
The utility model relates to the metal cutting manufacture field, relates in particular to Indexable threading insert.
Background technology
Existing Cutting blade for machining screw thread; The negative angle blade that the thickness direction of knife face and vane body extends in parallel after comprising; This blade only is formed with a screw chasing basil in the bight that a pair of adjacent side of tabular vane body triangular in shape forms, the blade material utilization rate is low.
Publication number is the six sword Indexable threading inserts that two pieces of Chinese patent documents of CN101626860A and CN101466490A disclose a kind of triangular shaped body respectively; The cutting basil height of this type of blade all is limited in the triangle scope that vane body side extended line surrounds, when the pitch of blade increases, and blade tooth proportions (tooth depth; Circular arc size at the bottom of tooth top, the tooth; Thread form half-angle etc.) also increase thereupon, under the situation of vane body size constancy, will cut basil limitation in height in the triangle scope that vane body side extended line surrounds; The chip-breaker size that will inevitably cause the blade basil reduces; Irrational chip-breaker size is provided with, and chip breaking, the chip removal space of blade in process reduced, and causes screw processing quality to descend; Cause that processing cutting force increases, even the situation that causes the blade basil to burst apart and destroy; Simultaneously; Blade tow sides cutting edge all raises up with respect to the vane body upper surface in the above-mentioned patent documentation, and this a pair of cutting edge angle only has a cutting basil to participate in cut when screw chasing; Carry out screw thread when one of them cutting basil and add man-hour; The structure of another cutting edge angle raising may make iron filings twine on it, and stops the discharge of iron filings, causes the destruction of this cutting basil and the decline of workpiece thread quality.
The utility model content
The technical problem that the utility model will solve is the deficiency that overcomes prior art, and the Indexable threading insert that a kind of chip removal space is big, chip removal is smooth and easy, cutting quality good, working (machining) efficiency is high is provided.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of Indexable threading insert; Comprise the regular polygon cutter blade that surrounds by upper and lower two surfaces and a plurality of side; Said regular polygon cutter blade is formed with two cutting basils in each bight of regular polygon, it is characterized in that: the tip of said two cutting basils extends to beyond the regular polygon scope that the side extended line of regular polygon cutter blade surrounded.
The said cutting basil is surrounded by upper and lower two surfaces of two basil sides and regular polygon cutter blade; A surface of said regular polygon cutter blade forms the rake face of this cutting basil; Another surface is formed for dodging the empty avoiding face of another cutting basil smear metal that cut produces in same bight, and said empty avoiding face is the fillet surface of inclination.
Two cutting basils in each bight of said regular polygon cutter blade oppositely are provided with, and the rake face of two cutting basils is divided on upper and lower two surfaces of regular polygon cutter blade.
The anterior angle of the said cutting basil is γ, 0 ° of < < 30 ° of γ.
The empty avoiding face of the said cutting basil forms angle δ ,-30 ° of < < 45 ° of δ with the surface of regular polygon cutter blade.
Upper and lower two surfaces of said regular polygon cutter blade are provided with and the corresponding chip breaker of each cutting basil.
The joint of the side of the said cutting basil and regular polygon cutter blade is provided with the smoothing structure.
The said cutting basil is the triangle thread basil or the rectangular thread basil or the trapezoidal thread basil.
Compared with prior art, the advantage of the utility model is:
The Indexable threading insert of the utility model extends to the tip of the cutting basil beyond the regular polygon scope that the side extended line of regular polygon cutter blade surrounded, to increase the chip-breaker width of blade; Guarantee that smear metal has bigger chip removal space, during screw cutting, help curling and discharge of smear metal; And; Heat in metal cutting also can comparatively fast be discharged in bigger chip removal space, can improve the blade quality, reduces smear metal to the influence of machining screw on the workpiece; For conventional thread turning blade, the vane body utilization rate of the Indexable threading insert of the utility model is higher, and smear metal frictional force in flow process is little; The workpiece screw thread is highly polished; And blade strength is good, can effectively improve working (machining) efficiency, reduces production costs.Each cuts the basil and is equipped with empty avoiding face, the fillet surface of this empty avoiding face for tilting, and the cutting basil was twined in smear metal when it can avoid screw chasing, prevented the blade tipping, also can prevent simultaneously the screw thread that shaped on the smear metal scraping workpiece to improve screw processing quality.
Description of drawings
Fig. 1 is the perspective view of the utility model;
Fig. 2 is the plan structure sketch map of the utility model;
Fig. 3 is the right TV structure sketch map of the utility model;
Fig. 4 is the structure for amplifying sketch map of the cutting basil in the utility model;
Fig. 5 is an A-A cross section view among Fig. 4.
Each label is represented among the figure:
1, regular polygon cutter blade; 11, surface; 12, side; 13, side extended line; 2, the cutting basil; 21, basil side; 22, rake face; 23, transition circle cambered surface; 24, smoothing structure; 3, empty avoiding face; 4, chip breaker.
The specific embodiment
Fig. 1 to Fig. 5 shows a kind of Indexable threading insert embodiment of the utility model; This Indexable threading insert comprises the regular polygon cutter blade 1 that is surrounded by upper and lower two surfaces 11 and a plurality of sides 12; Regular polygon cutter blade 1 is formed with two cutting basils 2 in each bight of regular polygon; The tip of two cutting basils 2 extends to beyond the regular polygon scope that the side extended line 13 of regular polygon cutter blade 1 surrounded; The regular polygon cutter blade 1 of present embodiment is the equilateral triangle cutter blade, is provided with six cutting basils 2 altogether.The utility model can increase the chip-breaker width of blade; Guarantee that smear metal has bigger chip removal space, during screw cutting, help curling and discharge of smear metal; And; Heat in metal cutting also can comparatively fast be discharged in bigger chip removal space, can improve the blade quality, reduces smear metal to having shaped the influence of screw thread on the workpiece; For conventional thread turning blade, the vane body utilization rate of the Indexable threading insert of the utility model is higher, and smear metal frictional force in flow process is little; The workpiece screw thread is highly polished; And blade strength is good, can effectively improve working (machining) efficiency, reduces production costs.
In the present embodiment; The cutting basil 2 is surrounded by upper and lower two surfaces 11 of two basil sides 21 and regular polygon cutter blade 1, and each cuts between adjacent two basil sides 21 of two basil sides 21 and two cutting basils 2 of the basil 2 and connects through a transition circle cambered surface 23 respectively, and a surface 11 of regular polygon cutter blade 1 forms the rake face 22 of this cutting basil 2; Another surface 11 is formed for dodging the empty avoiding face 3 of another cutting basil 2 smear metals that cut produces; The fillet surface of empty avoiding face 3 for tilting, from the viewed of regular polygon cutter blade 1, empty avoiding face 3 is the equidirectional extension with the rake face 22 of its cutting basil 2; This cutting basil 2 was twined in smear metal when this empty avoiding face 3 can be avoided screw chasing; Prevent the blade tipping, also can effectively increase the chip removal space of cutter simultaneously, can prevent the screw thread that has shaped on the smear metal scraping workpiece; Help the smooth discharge of smear metal, improve screw processing quality.
In the present embodiment; Two cutting basils 2 in regular polygon cutter blade 1 each bight oppositely are provided with; The rake face 22 of two cutting basils 2 is divided on upper and lower two surfaces 11 of regular polygon cutter blade 1; Just select to use in six cutting basils 2 arbitrarily through the upset blade, this makes the cutting basil 2 quantity on the same blade increase, and can improve stock utilization; Each cuts the basil 2 and another cutting basil 2 adjacent basil sides 21 and is longer than and respectively cuts the adjacent basil side 21 in the basil 2 and side 12, avoids two adjacent cutting basils 2 to form machining interference, prevents to influence crudy and the cutting basil 2 is caused damage.Upper and lower two surfaces 11 of regular polygon cutter blade 1 are equipped with chip breaker 4, and chip breaker 4 is the θ angle with respect to surface 11 and extends 10 °≤θ≤70 °; θ in the present embodiment=42 °; Each cuts, and the symmetrical center line of the basil 2 is parallel with an adjacent side 12, and the two spacing is D, and D changes along with the variation of blade pitch or tooth depth; Pitch P=2.31mm in the present embodiment, A=2.95mm.Because the particularity of screw thread processing; Add the smear metal that produces man-hour at screw thread and be mostly the not long smear metal of frangible, this just requires to have on the screw tool under the bigger chip removal space, particularly internal thread machining situation even more important; The design of the cutting basil 2 of the utility model has broken through the limitation of the side 12 of vane body; Leave very big surplus for the design of chip breaker 4, guarantee the appropriate design and the big chip removal space of chip breaker 4, help the discharge of smoothness and the distributing of heat in metal cutting of smear metal.The cutting basil 2 is provided with smoothing structure 24 with the joint of the side 12 of regular polygon cutter blade 1, can remove the surface quality of machined burrs, raising workpiece screw thread.The cutting basil 2 can be the triangle thread basil or the rectangular thread basil or the trapezoidal thread basil, and the present embodiment cutting basil 2 is the triangle thread basil.The anterior angle of the cutting basil 2 is γ, 0 ° γ 30 °, and in the present embodiment, γ=11 °; The empty avoiding face 3 of the cutting basil 2 forms angle δ with the surface of regular polygon cutter blade 1 11 ,-30 ° δ 45 °, and in the present embodiment, δ=32 °.Each cuts the basil 2 can adopt identical physical dimension, after a cutting basil 2 is worn in process, is that available another cutting basil 2 is processed through transposition or upset blade.
The above-mentioned just preferred embodiment of the utility model is not that the utility model is done any pro forma restriction.Though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model.Any those of ordinary skill in the art; Under the situation that does not break away from the utility model technical scheme scope; All the technology contents of above-mentioned announcement capable of using is made many possible changes and modification to the utility model technical scheme, or is revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not break away from the utility model technical scheme, all should drop in the scope of the utility model technical scheme protection any simple modification, equivalent variations and modification that above embodiment did according to the utility model technical spirit.
Claims (9)
1. Indexable threading insert; Comprise the regular polygon cutter blade (1) that surrounds by upper and lower two surfaces (11) and a plurality of side (12); Said regular polygon cutter blade (1) is formed with two cutting basils (2) in each bight of regular polygon, it is characterized in that: the tip of said two cutting basils (2) extends to beyond the regular polygon scope that the side extended line (13) of regular polygon cutter blade (1) surrounded.
2. Indexable threading insert according to claim 1; It is characterized in that: the said cutting basil (2) is surrounded by upper and lower two surfaces (11) of two basil sides (21) and regular polygon cutter blade (1); A surface (11) of said regular polygon cutter blade (1) forms should cut the rake face (22) of the basil (2); Another surface (11) is formed for dodging the empty avoiding face (3) of another cutting basil (2) smear metal that cut produces in same bight, and said empty avoiding face (3) is the fillet surface of inclination.
3. Indexable threading insert according to claim 2; It is characterized in that: two cutting basils (2) in each bight of said regular polygon cutter blade (1) are reverse to be provided with, and the rake face (22) of two cutting basils (2) is divided on upper and lower two surfaces (11) of regular polygon cutter blade (1).
4. according to claim 2 or 3 described Indexable threading inserts, it is characterized in that: the anterior angle of the said cutting basil (2) is γ, 0 ° of < < 30 ° of γ.
5. according to claim 2 or 3 described Indexable threading inserts, it is characterized in that: the empty avoiding face (3) of the said cutting basil (2) forms angle δ ,-30 ° of < < 45 ° of δ with the surface (11) of regular polygon cutter blade (1).
6. Indexable threading insert according to claim 4 is characterized in that: the empty avoiding face (3) of the said cutting basil (2) forms angle δ ,-30 ° of < < 45 ° of δ with the surface (11) of regular polygon cutter blade (1).
7. Indexable threading insert according to claim 6 is characterized in that: upper and lower two surfaces (11) of said regular polygon cutter blade (1) are provided with and the corresponding chip breaker (4) of each cutting basil (2).
8. Indexable threading insert according to claim 7 is characterized in that: the said cutting basil (2) is provided with smoothing structure (24) with the joint of the side (12) of regular polygon cutter blade (1).
9. Indexable threading insert according to claim 8 is characterized in that: the said cutting basil (2) is the triangle thread basil or the rectangular thread basil or the trapezoidal thread basil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202729249U CN202162468U (en) | 2011-07-29 | 2011-07-29 | Transpositional thread processing blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202729249U CN202162468U (en) | 2011-07-29 | 2011-07-29 | Transpositional thread processing blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202162468U true CN202162468U (en) | 2012-03-14 |
Family
ID=45798319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202729249U Withdrawn - After Issue CN202162468U (en) | 2011-07-29 | 2011-07-29 | Transpositional thread processing blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202162468U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102896381A (en) * | 2011-07-29 | 2013-01-30 | 株洲钻石切削刀具股份有限公司 | Indexable thread machining blade |
-
2011
- 2011-07-29 CN CN2011202729249U patent/CN202162468U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102896381A (en) * | 2011-07-29 | 2013-01-30 | 株洲钻石切削刀具股份有限公司 | Indexable thread machining blade |
| CN102896381B (en) * | 2011-07-29 | 2014-09-17 | 株洲钻石切削刀具股份有限公司 | Indexable thread machining blade |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120314 Effective date of abandoning: 20140917 |
|
| RGAV | Abandon patent right to avoid regrant |