CN102814560A - Taper thread milling cutter with internal cooling structure - Google Patents
Taper thread milling cutter with internal cooling structure Download PDFInfo
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- CN102814560A CN102814560A CN201210354380XA CN201210354380A CN102814560A CN 102814560 A CN102814560 A CN 102814560A CN 201210354380X A CN201210354380X A CN 201210354380XA CN 201210354380 A CN201210354380 A CN 201210354380A CN 102814560 A CN102814560 A CN 102814560A
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- taper thread
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Abstract
The invention discloses a taper thread milling cutter with an internal cooling structure. The taper thread milling cutter comprises a cutter bar body, wherein the cutter bar body is composed of a cylindrical handle part and a cone-cylinder bar part which are integrally machined and shaped; a section platform advantageous for mounting and chip removal is milled at the front end of the cone-cylinder bar part; a milling blade with a triangular structure is detachably and separately assembled on the front part of the section platform; the milling blade is provided with at least one cutting edge, and only one cutting edge is located in a cutting processing position when the milling blade is assembled at any angle; an internal cooling liquid flow channel is formed in the cutter bar body; the liquid outlet of the internal cooling liquid flow channel points to the cutting processing position; and the cutter bar body is matched and combined with the milling blade to form an internally-cooled taper thread milling cutter structure. The taper thread milling cutter with the internal cooling structure has the characteristics of being simple in structure, low in cost, good in cooling effect, high in processing accuracy and long in service life, and is capable of meeting the requirements on processing of various taper threads.
Description
Technical field
The present invention relates to the technical field of machining cutting tool,, specifically have the taper thread milling cutter of interior cooling structure especially for a kind of milling cutter apparatus of milling thread.
Background technology
In mechanical taper thread processing, the traditional processing mode mainly contains two kinds: a kind of is the screw tap processing that has tapering; Another kind is the toothrow thread milling processing that has tapering.All there is certain manufacturing deficiency in these several kinds traditional processing modes.Screw tap machining screw not only crudy is poor, and fineness is not high, and middle footpath size is difficult to control, and screw tap in the screw thread process also easy abrasion with fracture, cause workpiece scrap or workpiece manufacture cost too high.Toothrow thread milling is processed in to be carried out taper thread to add the man-hour tool resistance big, sends out shake easily, and feeding can not strengthen, and cutter life is short, and the cost of charp tool is very high.Moreover in machining because the cutting of the high speed rotating of milling cutter also can produce the high temperature ablation phenomenon, cause product or cutting performance to reduce or scrap, thereby all can external cooling fluid when traditional milling, to guarantee effective heat radiation.But the mode of this external cooling tube has also caused the parts at cutting position too many, and work is very inconvenient, and the position of its spray coolant is also very undesirable, therefore can not realize the effect of lowering the temperature and lubricating better.
Summary of the invention
Technical problem to be solved by this invention is to above-mentioned prior art present situation, and provides working (machining) efficiency high, and the milling rigidity is good, and the cost of charp tool is low, highly versatile and have good heat radiating and the taper thread milling cutter with interior cooling structure of lubricant effect.This screw cutter is simple for structure, safe and reliable, long service life, can be through changing the process requirements that different blades satisfy multiple size taper thread.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: the taper thread milling cutter with interior cooling structure; Comprise the knife bar body; The knife bar body is made up of with awl mast portion the cylinder shank of one machine-shaping; The preceding end milling of awl mast portion is shaped on the tangent plane platform that is beneficial to installation and chip removal, and the anterior detachable separate type of this tangent plane platform is fitted with the milling cutting insert of structure triangular in shape, and milling cutting insert is shaped on a cutting edge at least; And this milling cutting insert is arbitrarily angled only to have a cutting edge to be in the cut position when equipped; Be shaped on the internal coolant runner in the knife bar body, the liquid outlet of this internal coolant runner points to the cut position, and knife bar body and milling cutting insert match and constituted the screw cutter structure of tapering formula internally cooled.
For optimizing technique scheme, the concrete measure of taking also comprises:
Above-mentioned internal coolant runner comprises that feed liquor sprue that is shaped on along the central axis of cylinder shank and the inclination that in awl mast portion, is shaped on extend the directional inclination runner that is communicated with the feed liquor sprue; Liquid outlet is the mouth spray of directional inclination runner, and this mouth spray is positioned on the tangent plane platform and points to the cut position.
The afterbody that above-mentioned tangent plane platform extends back has the smooth curved surface that is arcs of recesses.
Above-mentioned tangent plane platform is shaped on recessed district, the location of matching with milling cutting insert, and milling cutting insert is fixedly mounted in the recessed district, this location, and recessed district, location has two sidewalls, and two sidewalls change the location with two frontier defenses of triangle milling cutting insert respectively and match.
The junction of two sidewalls in recessed district, above-mentioned location is shaped on the extension slot that holds cutting edge.
Above-mentioned milling cutting insert is shaped on three cutting edges, and three cutting edges lay respectively at three corner positions of milling cutting insert.
The center of above-mentioned milling cutting insert is shaped on the assembling through hole, and recessed district, location is shaped on threaded mounting hole, and milling cutting insert is recessed in the district through the dismountable location that is fitted in of special screw.
The center line of above-mentioned threaded mounting hole departs from the central axis of awl mast portion.
The slanted angle of the first side wall in two above-mentioned sidewalls and the preceding transverse plane of awl mast portion be 55 degree to 58 degree, the angle of any two adjacent edges of milling cutting insert is 60 degree.
Compared with prior art; Knife bar body of the present invention is made up of with awl mast portion the cylinder shank of one machine-shaping; What the bar portion of awl cylindricality can improve this product greatly is adding the milling rigidity in man-hour; The knife bar body is shaped on the internal coolant runner, this product is added at workpiece can guarantee that milling cutting insert can not burn out because of overheated man-hour better, thereby also improved greatly the service life of product.Interior cooling type makes the cooling effect of cutter higher better, when milling, does not also need the direction of artificial adjustment spray cooling fluid, and is easy to use, simple to operate.Knife bar body of the present invention and milling cutting insert adopt dismountable mode equipped simultaneously, have improved the interchangeability between tool parts greatly, have eliminated the defective of conventional tool versatility difference, can realize the demand of multiple screw thread processing through changing different milling cutting inserts.The present invention's interchangeability simple in structure, with low cost, general is strong, has the accuracy of screw machining height, and is effective, and fireballing characteristics can provide sound assurance for the screw thread processing of efficient stable.
Description of drawings
Fig. 1 is the structural representation of facing of the embodiment of the invention;
Fig. 2 is the rearview of Fig. 1;
Fig. 3 is the upward view of Fig. 1;
Fig. 4 is the vertical view of Fig. 1;
Fig. 5 is the right view of Fig. 1;
Fig. 6 is the left view of Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are described in further detail.
Fig. 1 is extremely shown in Figure 6 to be structural representation of the present invention.
Reference numeral wherein is: feed liquor sprue A, directional inclination runner B, mouth spray C, threaded mounting hole D, knife bar body 1, cylinder shank 11, awl mast portion 12, preceding transverse plane 12a, tangent plane platform 121, smooth curved surface 121a, location are recessed into district 122, extension slot 123, the first side wall 124, milling cutting insert 2, cutting edge 21, special screw 3.
Extremely shown in Figure 6 like Fig. 1; Taper thread milling cutter with interior cooling structure of the present invention; Comprise knife bar body 1; Knife bar body 1 is made up of with awl mast portion 12 the cylinder shank 11 of one machine-shaping, and the preceding end milling of awl mast portion 12 is shaped on the tangent plane platform 121 that is beneficial to installation and chip removal, and the anterior detachable separate type of this tangent plane platform 121 is fitted with the milling cutting insert 2 of structure triangular in shape; Milling cutting insert 2 is shaped on a cutting edge 21 at least; And this milling cutting insert 2 is arbitrarily angled only to have a cutting edge 21 to be in the cut position when equipped, and the cutting edge angular bisector and knife bar body 1 center line that are in the cut position simultaneously have certain included angle, are not traditional vertical angle.Be shaped on the internal coolant runner in the knife bar body 1, the liquid outlet of this internal coolant runner points to the cut position, and knife bar body 1 matches with milling cutting insert 2 and constituted the screw cutter structure of tapering formula internally cooled.In workpiece process, milling cutter can produce very high temperature when cutting, and high temperature can cause blade or workpiece to be ablated, and causes the workpiece quality difference of processing and milling cutter short service life.Usually adopt the method for external cooling tube in the conventional art, through cooling tube working position is sprayed cooling fluid and realize cooling, this method has the defective that is difficult to overcome, and cooling effect is bad, the position regular meeting deviation of sprinkling.Knife bar body 1 of the present invention is shaped on the internal coolant runner can directly directedly wash cooling to the cut position, thereby its cooling effect is better.Then in knife bar body 1 body, flowing through, so knife bar body 1 also can be cooled off timely all the time and is in the normal operating temperature owing to cooling fluid.The cooling flushing of inner-cooled also has a big advantage, can timely the chip that cuts be washed away exactly, guarantees the clean and tidy of cutting environment, thereby has improved the machining accuracy of screw thread.The assembling of knife bar body 1 of the present invention and the detachable separate type of milling cutting insert 2 employings; Improved equipped flexibility and the interchangeability of cutter; No matter be that knife bar body 1 or milling cutting insert 2 damages all can not cause whole cutter to be scrapped; Knife bar body 1 through with the milling cutting insert with different cutting edges 21 2 assembling can satisfy the process requirements of multiple size taper thread, thereby its applicability is wider.The present invention is simple for structure, with low cost, has good cooling results, and the characteristics of machining accuracy height and long service life are suitable for the demand that multiple taper thread is processed.
As shown in Figure 1 among the embodiment; Internal coolant runner of the present invention comprises that feed liquor sprue A that is shaped on along the central axis of cylinder shank 11 and the inclination that in awl mast portion 12, is shaped on extend the directional inclination runner B that is communicated with feed liquor sprue A; Liquid outlet is the mouth spray C of directional inclination runner B, and this mouth spray C is positioned on the tangent plane platform 121 and points to the cut position.
The afterbody that above-mentioned tangent plane platform 121 extends back has the smooth curved surface 121a that is arcs of recesses.Smooth curved surface 121a can more convenient chip removal, and the chip removal resistance can reduce the cooling fluid flushing time.
Fastness in order to guarantee that milling cutting insert 2 is installed of the present invention; Among the embodiment; Tangent plane platform 121 is shaped on recessed district 122, the location of matching with milling cutting insert 2; Milling cutting insert 2 is fixedly mounted in the recessed district 122, this location, and recessed district 122, location has two sidewalls, and two sidewalls change the location with two frontier defenses of triangle milling cutting insert 2 respectively and match.Recessed district 122, location is the recessed platform of turning, and one of two sidewall in recessed district 122, location are longer relatively, and another is shorter relatively.
In order to guarantee that two sidewalls can not influence the placement of milling cutting insert 2, recessed district, location 122 is cooperated with the effective of milling cutting insert 2, the recessed junction of distinguishing 122 two sidewalls, location is shaped on the extension slot 123 that holds cutting edge 21 among the embodiment.
Described milling cutting insert 2 of the present invention is shaped on three corner positions that 21, three cutting edges 21 of three cutting edges lay respectively at milling cutting insert 2.Be shaped on three cutting edges 21 and can further enlarge the scope of application of the present invention, cutting edge 21 can be identical, also can have different screw chasing angles.
Among the embodiment, the center of milling cutting insert 2 is shaped on the assembling through hole, and recessed district 122, location is shaped on threaded mounting hole D, and milling cutting insert 2 is through special screw 3 dismountable being fitted in the recessed district 122, location.
The center line of threaded mounting hole D departs from the central axis of awl mast portion 12.The center line of threaded mounting hole D is perpendicular to the central axis of awl mast portion 12, can have a cutting edge 21 to be in the cutwork position when guaranteeing that milling cutting insert 2 is installed, so two lines and non-intersect.
The slanted angle of the first side wall 124 in two sidewalls in recessed district 122, location and the preceding transverse plane 12a of awl mast portion 12 be 55 degree to 58 degree, the angle of milling cutting insert 2 any two adjacent edges is 60 degree.Article two, the angle between sidewall is 60 degree.The present invention is through test of many times, and the first side wall 124 is the best effort angle at 55 degree with the slanted angle of the preceding transverse plane 12a of awl mast portion 12 when 58 spend.
Product structure of the present invention is unique, can be suitable for multiple taper thread cutting, has the machining accuracy height, and the characteristics that the milling rigidity is strong can provide sound assurance for the processing of efficient stable.
Claims (9)
1. the taper thread milling cutter that has interior cooling structure; Comprise knife bar body (1); It is characterized in that: described knife bar body (1) is made up of the cylinder shank (11) and the awl mast portion (12) of one machine-shaping; The preceding end milling of described awl mast portion (12) is shaped on the tangent plane platform (121) that is beneficial to installation and chip removal; The anterior detachable separate type of this tangent plane platform (121) is fitted with the milling cutting insert (2) of structure triangular in shape; Described milling cutting insert (2) is shaped on a cutting edge (21) at least, and this milling cutting insert (2) is arbitrarily angled only has a cutting edge (21) to be in the cut position when equipped, is shaped on the internal coolant runner in the described knife bar body (1); The liquid outlet of this internal coolant runner points to the cut position, and described knife bar body (1) and milling cutting insert (2) match and constituted the screw cutter structure of tapering formula internally cooled.
2. the taper thread milling cutter with interior cooling structure according to claim 1; It is characterized in that: described internal coolant runner comprises that feed liquor sprue (A) that is shaped on along the central axis of cylinder shank (11) and the inclination that in awl mast portion (12), is shaped on extend the directional inclination runner (B) that is communicated with feed liquor sprue (A); Described liquid outlet is the mouth spray (C) of directional inclination runner (B), and this mouth spray (C) is positioned at tangent plane platform (121) and goes up and point to the cut position.
3. the taper thread milling cutter with interior cooling structure according to claim 2 is characterized in that: the afterbody that described tangent plane platform (121) extends back has the smooth curved surface (121a) that is arcs of recesses.
4. the taper thread milling cutter with interior cooling structure according to claim 3; It is characterized in that: described tangent plane platform (121) is shaped on the recessed district, location (122) that matches with milling cutting insert (2); Described milling cutting insert (2) is fixedly mounted in the recessed district, this location (122); Recessed district, described location (122) has two sidewalls, and described two sidewalls change the location with two frontier defenses of triangle milling cutting insert (2) respectively and match.
5. the taper thread milling cutter with interior cooling structure according to claim 4 is characterized in that: the junction of (122) two sidewalls in recessed district, described location is shaped on the extension slot (123) that holds cutting edge (21).
6. the taper thread milling cutter with interior cooling structure according to claim 5 is characterized in that: described milling cutting insert (2) is shaped on three cutting edges (21), and described three cutting edges (21) lay respectively at three corner positions of milling cutting insert (2).
7. the taper thread milling cutter with interior cooling structure according to claim 6; It is characterized in that: the center of described milling cutting insert (2) is shaped on the assembling through hole; Recessed district, described location (122) is shaped on threaded mounting hole (D), and described milling cutting insert (2) is recessed in the district (122) through the dismountable location that is fitted in of special screw (3).
8. the taper thread milling cutter with interior cooling structure according to claim 7 is characterized in that: the center line of described threaded mounting hole (D) departs from the central axis of awl mast portion (12).
9. the taper thread milling cutter with interior cooling structure according to claim 8; It is characterized in that: the slanted angle of preceding transverse plane (12a) of the first side wall (124) in described two sidewalls and awl mast portion (12) be 55 degree to 58 degree, the angle of any two adjacent edges of said milling cutting insert (2) is 60 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210354380.XA CN102814560B (en) | 2012-09-22 | 2012-09-22 | Taper thread milling cutter with internal cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210354380.XA CN102814560B (en) | 2012-09-22 | 2012-09-22 | Taper thread milling cutter with internal cooling structure |
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| Publication Number | Publication Date |
|---|---|
| CN102814560A true CN102814560A (en) | 2012-12-12 |
| CN102814560B CN102814560B (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210354380.XA Active CN102814560B (en) | 2012-09-22 | 2012-09-22 | Taper thread milling cutter with internal cooling structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105458300A (en) * | 2015-12-14 | 2016-04-06 | 广东工商职业学院 | Method for machining inner shape of vibration disc through digital controlled lathe |
| CN109365893A (en) * | 2018-12-07 | 2019-02-22 | 西安交通大学 | A kind of Whirlwind milling cutter with self cooling and lubrication structure |
| CN110899871A (en) * | 2019-11-26 | 2020-03-24 | 成都比扬精密机械有限公司 | Deep hole thread milling cutter |
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| DE3737315A1 (en) * | 1987-11-04 | 1989-05-18 | Link Johann & Ernst Gmbh & Co | Tool for boring and thread cutting |
| CN1836813A (en) * | 2005-03-24 | 2006-09-27 | 埃莫克精密工具厂里查德格林普尔有限责任两合公司 | Bore screw milling cutter |
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| CN102500845A (en) * | 2011-11-09 | 2012-06-20 | 宁波中天联合机电制造有限公司 | Cutter and method for machining inside tapered thread |
| CN202317325U (en) * | 2011-11-28 | 2012-07-11 | 贵阳广航铸造有限公司 | Single-edge trapezoidal thread milling cutter |
| CN202741870U (en) * | 2012-09-22 | 2013-02-20 | 宁波川景誉机械科技发展有限公司 | Taper thread milling cutter with internal cooling structure |
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2012
- 2012-09-22 CN CN201210354380.XA patent/CN102814560B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE3737315A1 (en) * | 1987-11-04 | 1989-05-18 | Link Johann & Ernst Gmbh & Co | Tool for boring and thread cutting |
| CN1836813A (en) * | 2005-03-24 | 2006-09-27 | 埃莫克精密工具厂里查德格林普尔有限责任两合公司 | Bore screw milling cutter |
| EP1864741A2 (en) * | 2006-06-09 | 2007-12-12 | EMUGE-Werk Richard Glimpel GmbH & Co.KG Fabrik für Präzisionswerkzeuge | Tool for machining a workpiece, cutting element and carrier piece |
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| CN102500845A (en) * | 2011-11-09 | 2012-06-20 | 宁波中天联合机电制造有限公司 | Cutter and method for machining inside tapered thread |
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| CN202741870U (en) * | 2012-09-22 | 2013-02-20 | 宁波川景誉机械科技发展有限公司 | Taper thread milling cutter with internal cooling structure |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105458300A (en) * | 2015-12-14 | 2016-04-06 | 广东工商职业学院 | Method for machining inner shape of vibration disc through digital controlled lathe |
| CN109365893A (en) * | 2018-12-07 | 2019-02-22 | 西安交通大学 | A kind of Whirlwind milling cutter with self cooling and lubrication structure |
| CN109365893B (en) * | 2018-12-07 | 2020-02-18 | 西安交通大学 | Cyclone milling cutter with self-cooling lubricating structure |
| CN110899871A (en) * | 2019-11-26 | 2020-03-24 | 成都比扬精密机械有限公司 | Deep hole thread milling cutter |
| CN110899871B (en) * | 2019-11-26 | 2022-04-29 | 成都比扬精密机械有限公司 | Deep hole thread milling cutter |
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| Publication number | Publication date |
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| CN102814560B (en) | 2015-06-10 |
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