CN110539022A - Tungsten steel milling cutter of wear-resistant numerical control key machine and use method - Google Patents
Tungsten steel milling cutter of wear-resistant numerical control key machine and use method Download PDFInfo
- Publication number
- CN110539022A CN110539022A CN201910850255.XA CN201910850255A CN110539022A CN 110539022 A CN110539022 A CN 110539022A CN 201910850255 A CN201910850255 A CN 201910850255A CN 110539022 A CN110539022 A CN 110539022A
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- China
- Prior art keywords
- tungsten steel
- steel milling
- milling cutter
- cutter
- groove
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- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 39
- 238000003801 milling Methods 0.000 title claims abstract description 39
- 239000010959 steel Substances 0.000 title claims abstract description 39
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 229910052721 tungsten Inorganic materials 0.000 title claims abstract description 39
- 239000010937 tungsten Substances 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000000110 cooling liquid Substances 0.000 claims abstract description 23
- 229910052751 metal Inorganic materials 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims abstract description 6
- 239000002826 coolant Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 description 7
- 239000011148 porous material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/02—Milling-cutters characterised by the shape of the cutter
- B23C5/10—Shank-type cutters, i.e. with an integral shaft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/26—Securing milling cutters to the driving spindle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/28—Features relating to lubricating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2222/00—Materials of tools or workpieces composed of metals, alloys or metal matrices
- B23C2222/84—Steel
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Devices For Machine Tools (AREA)
Abstract
The invention discloses a wear-resistant tungsten steel milling cutter of a numerical control key machine and a using method thereof. The internal thread pipe is separated from the top port of the strip-shaped hole, the bottom of the clamping block is bounced into the strip-shaped hole under the action of the reset spring, so that the internal thread pipe has the function of rebounding the clamping fixing structure, and the cooling liquid is injected into a space formed by the annular groove and the adapter pipe and finally sprayed around the tungsten steel milling cutter head through the fine hole groove, so that the cooling liquid can be fully contacted with a high-temperature metal turning surface.
Description
Technical Field
The invention relates to a tungsten steel milling cutter and a using method thereof, in particular to a tungsten steel milling cutter of a wear-resistant numerical control key machine and a using method thereof, belonging to the technical field of application of the numerical control key machine.
Background
Numerical control technology and equipment are the enabling technology and the most basic equipment for developing new and advanced technology industry and advanced industry, the national defense industry such as information industry, biological industry, aviation, aerospace and the like of all countries in the world widely adopts the numerical control technology to improve the manufacturing capability and level and improve the adaptability and competitive power to the market, the developed industrial countries also take the numerical control technology and the numerical control equipment as strategic materials of the countries, not only the numerical control technology and the industry thereof are vigorously developed, but also the blocking and restriction policy is implemented for China in the aspect of high-precision numerical control key technology and equipment
Tungsten steel milling cutter's link is simple relatively, and self does not have the structure with the clamping of drive axostylus axostyle, and takes off from the drive axostylus axostyle and can not separate clamping structure and drive axostylus axostyle through elastic construction, and tungsten steel milling cutter turning metal face one side can be close to the coolant liquid shower head simultaneously, and sprays inadequately comprehensively, causes the cooling effect to remain to promote. Therefore, the tungsten steel milling cutter of the wear-resistant numerical control key machine and the using method are provided for solving the problems.
Disclosure of Invention
the invention aims to solve the problems and provide a tungsten steel milling cutter of a wear-resistant numerical control key machine and a using method thereof.
The tungsten steel milling cutter comprises a tungsten steel milling cutter head, a cooling liquid leading-out structure, a connecting and clamping structure and a springback structure, wherein a cutter bar is welded at one end of the tungsten steel milling cutter head, and a ring surface groove is formed in the middle of the ring surface of the cutter bar;
the cooling liquid guiding structure comprises a switching tube and thin hole channels, bearings are arranged at two ends in the switching tube, two bearings are symmetrically arranged at two sides of the middle part of the cutter bar, four thin hole channels are arranged, and the four thin hole channels are annularly and equidistantly arranged on a circular ring surface at one side in a circular ring surface groove;
The connecting and clamping structure comprises clamping blocks, the clamping blocks are slidably mounted in corresponding strip-shaped holes, the bottoms of the strip-shaped holes are communicated with the interior of the column groove, corresponding surface parts of the clamping blocks are slidably attached to the edge of the port of the internally threaded pipe, and the internally threaded pipe is in threaded connection with the cutter bar;
The resilience structure comprises a return spring, the return spring is located in a rectangular groove, one end of a fixing block is arranged in the rectangular groove in a sliding mode, and two ends of the return spring are fixedly installed on the inner side wall of the rectangular groove and one end of the fixing block respectively.
The tungsten steel milling head is of four helical blade structures, and the concave surface space of each helical blade structure is communicated with the inside of the annular groove through a thin pore channel.
the annular groove is positioned between the two bearings, and an annular space is formed between the annular groove and the adapter tube.
The pipe is installed to switching pipe annular face volume, and the pipe passes through the hose and is connected with external coolant liquid output device.
the bar hole is equipped with four, and four bar hole annular equidistance is seted up in cutter arbor annular surface one side.
the middle positions of the two side walls of the strip-shaped hole are both vertically fixed with the other end of the fixing block on the same side, and the depth dimension of the strip-shaped hole is smaller than the length dimension of the extending clamping block.
The clamp splice is right trapezoid structure, and the middle part of clamp splice both sides has all seted up the rectangle recess.
The inclined plane part of clamp splice surpasss the outer port of bar hole, and the inclined plane of clamp splice passes through reset spring and the slip of internal thread pipe mouth of pipe inward flange and pastes and lean on together.
The surface of the clamping block in the column groove is provided with anti-skid grains.
A use method of a tungsten steel milling cutter of a wear-resistant numerical control key machine comprises the following steps:
(1) Firstly, one end of a cutter driving connecting shaft rod extends into a column groove, an internal threaded pipe is rotated to rotate towards the outer side of a cutter bar, and the inner side ends of four clamping blocks can gradually extend into the column groove to be attached to and pressed on the cutter driving connecting shaft rod, so that the effect of firmly connecting a cutter and a driving shaft is achieved;
(2) Separating the internal threaded pipe from the top port of the strip-shaped hole in the reverse operation mode of the step (1), and enabling the bottom of the clamping block to be sprung into the strip-shaped hole under the action of the reset spring, so that the clamping fixing structure has the function of springing back;
(3) The hose connected with the cooling liquid conveying equipment is connected with the port of the guide pipe, so that the cooling liquid can be injected into a space formed by the annular groove and the adapter tube in the running state of the cooling liquid conveying equipment, and finally sprayed around the tungsten steel milling head through the fine hole groove, so that the cooling liquid can be fully contacted with a high-temperature metal turning surface.
The invention has the beneficial effects that:
1. The tool holder is reasonable in structural design, and the inner ends of the four clamping blocks can gradually extend into the column groove to be attached to and pressed on the tool driving connecting shaft lever by rotating the internal threaded pipe to the outer side of the tool bar, so that the effect of firmly connecting the tool and the driving shaft is achieved.
2. The structure of the invention separates the internal thread pipe from the top port of the strip-shaped hole, and enables the bottom of the clamping block to be bounced into the strip-shaped hole under the action of the return spring, thereby having the function of rebounding the clamping and fixing structure.
3. According to the invention, the cooling liquid is injected into a space formed by the annular groove and the adapter tube and is finally sprayed around the tungsten steel milling head through the fine hole groove, so that the cooling liquid can be fully contacted with the high-temperature metal turning surface.
drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a perspective view of the overall structure of the present invention;
FIG. 2 is a partial cross-sectional view of the overall structure of the present invention;
FIG. 3 is a schematic view of the end face structure of the tool holder of the present invention;
FIG. 4 is a schematic view of the cross-sectional view of the middle of the tool holder of the present invention.
in the figure: 1. tungsten steel milling cutter head, 2, pore canals, 3, cutter arbor, 4, adapter tube, 5, post groove, 6, internal thread pipe, 7, pipe, 8, bearing, 9, anchor ring groove, 10, bar hole, 11, rectangle recess, 12, reset spring, 13, clamp splice, 14, fixed block.
Detailed Description
in order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
Referring to fig. 1-4, a wear-resistant tungsten steel milling cutter of a numerical control key machine comprises a tungsten steel milling cutter head 1, a coolant outlet structure, a connecting clamping structure and a springback structure, wherein a cutter bar 3 is welded at one end of the tungsten steel milling cutter head 1, and a ring surface groove 9 is formed in the middle of the ring surface of the cutter bar 3;
the cooling liquid guiding structure comprises a switching tube 4 and thin hole channels 2, bearings 8 are arranged at two ends in the switching tube 4, the two bearings 8 are symmetrically arranged at two sides of the middle of the cutter bar 3, the number of the thin hole channels 2 is four, and the four thin hole channels 2 are annularly and equidistantly arranged on a circular ring surface at one side in a circular ring groove 9;
The connecting clamping structure comprises clamping blocks 13, the clamping blocks 13 are slidably mounted in corresponding strip-shaped holes 10, the bottoms of the strip-shaped holes 10 are communicated with the inside of the column groove 5, corresponding surface parts of the clamping blocks 13 are slidably attached to the edge of the port of the internal thread pipe 6, and the internal thread pipe 6 is in threaded connection with the cutter bar 3;
The resilience structure comprises a return spring 12, the return spring 12 is located in a rectangular groove 11, one end of a fixing block is arranged in the rectangular groove 11 in a sliding mode, and two ends of the return spring 12 are fixedly installed on the inner side wall of the rectangular groove 11 and one end of the fixing block 14 respectively.
Further, the tungsten steel milling head 1 is provided with four helical blade structures, and the concave space of the helical blade structure is communicated with the inside of the annular groove 9 through the thin hole channel 2.
furthermore, the annular groove 9 is located between the two bearings 8, and an annular space is formed between the annular groove 9 and the adapter tube 4.
furthermore, the pipe 7 is installed to the adapter tube 4 annular face volume, and the pipe 7 is connected with external coolant liquid output device through the hose.
further, bar hole 10 is equipped with four, and four bar hole 10 annular equidistance is seted up in 3 toroidal surfaces one side of cutter arbor.
further, the middle positions of the two side walls of the strip-shaped hole 10 are vertically fixed with the other end of the fixing block 14 on the same side, and the depth dimension of the strip-shaped hole 10 is smaller than the length dimension of the clamping block 13 extending into the hole.
Further, the clamping block 13 is of a right-angle trapezoidal structure, and rectangular grooves 11 are formed in the middle of two sides of the clamping block 13.
further, the inclined surface of the clamping block 13 partially exceeds the outer side port of the strip-shaped hole 10, and the inclined surface of the clamping block 13 is in sliding contact with the inner edge of the pipe port of the internal threaded pipe 6 through the return spring 12.
Furthermore, the surface of the clamping block 13 in the column groove 5 is provided with anti-skid grains.
A use method of a tungsten steel milling cutter of a wear-resistant numerical control key machine comprises the following steps:
(1) Firstly, one end of a cutter driving connecting shaft rod extends into a column groove 5, an internal threaded pipe 6 is rotated to rotate towards the outer side of a cutter bar 3, and the inner side ends of four clamping blocks 13 can gradually extend into the column groove 5 to be attached to and pressed on the cutter driving connecting shaft rod, so that the effect of firm connection between a cutter and a driving shaft is achieved;
(2) Separating the internal threaded pipe 6 from the top port of the strip-shaped hole 10 in the reverse operation mode of the step 1, and enabling the bottom of the clamping block 13 to be sprung into the strip-shaped hole 10 under the action of the reset spring 12, so that the clamping fixing structure has the function of rebounding;
(3) The hose connected with the cooling liquid conveying equipment is connected with the port of the conduit 7, the cooling liquid can be injected into a space formed by the annular groove 9 and the adapter tube 4 in the running state of the cooling liquid conveying equipment, and finally the cooling liquid is sprayed around the tungsten steel milling head 1 through the fine hole groove, so that the cooling liquid can be fully contacted with the high-temperature metal turning surface.
it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. the utility model provides a wearability numerical control key machine tungsten steel milling cutter which characterized in that: the tungsten steel milling cutter comprises a tungsten steel milling cutter head (1), a cooling liquid leading-out structure, a connecting and clamping structure and a springback structure, wherein a cutter bar (3) is welded at one end of the tungsten steel milling cutter head (1), and a ring surface groove (9) is formed in the middle of the ring surface of the cutter bar (3);
The cooling liquid guiding structure comprises an adapter tube (4) and thin hole channels (2), bearings (8) are assembled at two ends in the adapter tube (4), two bearings (8) are symmetrically assembled at two sides of the middle of the cutter bar (3), four thin hole channels (2) are arranged, and the four thin hole channels (2) are annularly and equidistantly arranged on a circular ring surface at one side in a circular groove (9);
The connecting clamping structure comprises clamping blocks (13), the clamping blocks (13) are slidably mounted in corresponding strip-shaped holes (10), the bottoms of the strip-shaped holes (10) are communicated with the inside of the column groove (5), corresponding surface parts of the clamping blocks (13) are slidably attached to the edge of the port of the internally threaded pipe (6), and the internally threaded pipe (6) is in threaded connection with the cutter bar (3);
The resilience structure comprises a return spring (12), the return spring (12) is located in a rectangular groove (11), a fixing block (14) one end is arranged in the rectangular groove (11) in a sliding mode, and two ends of the return spring (12) are fixedly installed on the inner side wall of the rectangular groove (11) and one end of the fixing block (14) respectively.
2. A wear resistant numerically controlled key machine tungsten steel milling cutter as claimed in claim 1 wherein: the tungsten steel milling head (1) is of four helical blade structures, and the concave surface space of each helical blade structure is communicated with the inside of the annular groove (9) through the thin hole channel (2).
3. A wear resistant numerically controlled key machine tungsten steel milling cutter as claimed in claim 1 wherein: the annular groove (9) is positioned between the two bearings (8), and an annular space is formed between the annular groove (9) and the adapter tube (4).
4. a wear resistant numerically controlled key machine tungsten steel milling cutter as claimed in claim 1 wherein: the pipe (7) is installed to adapter tube (4) annular face volume, and pipe (7) are connected with external coolant liquid output device through the hose.
5. A wear resistant numerically controlled key machine tungsten steel milling cutter as claimed in claim 1 wherein: bar hole (10) are equipped with four, and four bar hole (10) annular equidistance is seted up in cutter arbor (3) toroid one side.
6. a wear resistant numerically controlled key machine tungsten steel milling cutter as claimed in claim 1 wherein: the middle positions of the two side walls of the strip-shaped hole (10) are vertically fixed with the other end of the fixing block (14) on the same side, and the depth dimension of the strip-shaped hole (10) is smaller than the length dimension of the clamping block (13) which stretches into the strip-shaped hole.
7. A wear resistant numerically controlled key machine tungsten steel milling cutter as claimed in claim 1 wherein: the clamping block (13) is of a right-angle trapezoidal structure, and rectangular grooves (11) are formed in the middle of two sides of the clamping block (13).
8. A wear resistant numerically controlled key machine tungsten steel milling cutter as claimed in claim 1 wherein: the inclined surface part of the clamping block (13) exceeds the outer side port of the strip-shaped hole (10), and the inclined surface of the clamping block (13) is attached to the inner edge of the pipe opening of the internal threaded pipe (6) in a sliding mode through the return spring (12).
9. A wear resistant numerically controlled key machine tungsten steel milling cutter as claimed in claim 1 wherein: the surface of the clamping block (13) in the column groove (5) is provided with anti-skid grains.
10. A method of using a wear resistant numerically controlled key machine tungsten steel milling cutter according to claims 1-9, characterized by: the using method comprises the following steps:
(1) Firstly, one end of a cutter driving connecting shaft lever extends into a column groove (5), an internal threaded pipe (6) is rotated to rotate towards the outer side of a cutter bar (3), and the inner side ends of four clamping blocks (13) can gradually extend into the column groove (5) to be attached to and pressed on the cutter driving connecting shaft lever, so that the effect of firm connection between a cutter and a driving shaft is achieved;
(2) Separating the internal threaded pipe (6) from the top port of the strip-shaped hole (10) in a reverse operation mode of the step (1), and enabling the bottom of the clamping block (13) to be sprung into the strip-shaped hole (10) under the action of the reset spring (12), so that the clamping fixing structure has a springback function;
(3) the hose connected with the cooling liquid conveying equipment is connected with the port of the conduit (7), the cooling liquid can be injected into a space formed by the annular groove (9) and the adapter tube (4) in the running state of the cooling liquid conveying equipment, and finally the cooling liquid is sprayed around the tungsten steel milling head (1) through the fine hole groove, so that the cooling liquid can be fully contacted with a high-temperature metal turning surface.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201910850255.XA CN110539022A (en) | 2019-09-10 | 2019-09-10 | Tungsten steel milling cutter of wear-resistant numerical control key machine and use method |
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CN201910850255.XA CN110539022A (en) | 2019-09-10 | 2019-09-10 | Tungsten steel milling cutter of wear-resistant numerical control key machine and use method |
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CN110539022A true CN110539022A (en) | 2019-12-06 |
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CN201910850255.XA Pending CN110539022A (en) | 2019-09-10 | 2019-09-10 | Tungsten steel milling cutter of wear-resistant numerical control key machine and use method |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111644675A (en) * | 2020-05-27 | 2020-09-11 | 株洲钻石切削刀具股份有限公司 | Inner-cooling cutting tool and cutting system |
CN111673947A (en) * | 2020-06-05 | 2020-09-18 | 安徽承研塑业有限公司 | Cutting side band recycling mechanism for plastic sheet production |
CN113020680A (en) * | 2021-03-11 | 2021-06-25 | 苏州科技大学 | Combined plane milling cutter |
CN114012151A (en) * | 2021-11-15 | 2022-02-08 | 张家港市锐正精密工具有限公司 | Milling cutter for manufacturing key transversely extending in lock hole and machining method thereof |
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GB707680A (en) * | 1951-12-13 | 1954-04-21 | Crawford & Company Tottenham L | Improvements in or relating to drill chucks and the like |
JPH06134648A (en) * | 1992-06-17 | 1994-05-17 | Makino Milling Mach Co Ltd | Cutting method and device |
WO1999060079A2 (en) * | 1998-05-21 | 1999-11-25 | The Trustees Of Columbia University In The City Of New York | Milling tool with rotary cryogenic coolant coupling |
CN102218678A (en) * | 2011-05-26 | 2011-10-19 | 常州宝隆冶金设备制造有限公司 | Fuel receiving device |
CN203542224U (en) * | 2013-09-29 | 2014-04-16 | 东莞市安默琳节能环保技术有限公司 | Outer cooling-to-inner cooling cutter handle device and cutting device |
CN105965078A (en) * | 2016-07-01 | 2016-09-28 | 天津众达精密机械有限公司 | Self-centering milling cutter clamping device |
-
2019
- 2019-09-10 CN CN201910850255.XA patent/CN110539022A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB707680A (en) * | 1951-12-13 | 1954-04-21 | Crawford & Company Tottenham L | Improvements in or relating to drill chucks and the like |
JPH06134648A (en) * | 1992-06-17 | 1994-05-17 | Makino Milling Mach Co Ltd | Cutting method and device |
WO1999060079A2 (en) * | 1998-05-21 | 1999-11-25 | The Trustees Of Columbia University In The City Of New York | Milling tool with rotary cryogenic coolant coupling |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111644675A (en) * | 2020-05-27 | 2020-09-11 | 株洲钻石切削刀具股份有限公司 | Inner-cooling cutting tool and cutting system |
CN111644675B (en) * | 2020-05-27 | 2022-06-14 | 株洲钻石切削刀具股份有限公司 | Inner-cooling cutting tool and cutting system |
CN111673947A (en) * | 2020-06-05 | 2020-09-18 | 安徽承研塑业有限公司 | Cutting side band recycling mechanism for plastic sheet production |
CN113020680A (en) * | 2021-03-11 | 2021-06-25 | 苏州科技大学 | Combined plane milling cutter |
CN114012151A (en) * | 2021-11-15 | 2022-02-08 | 张家港市锐正精密工具有限公司 | Milling cutter for manufacturing key transversely extending in lock hole and machining method thereof |
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Application publication date: 20191206 |