CN116213781B - Indexable shallow hole drill assisting chip removal - Google Patents
Indexable shallow hole drill assisting chip removal Download PDFInfo
- Publication number
- CN116213781B CN116213781B CN202310497775.3A CN202310497775A CN116213781B CN 116213781 B CN116213781 B CN 116213781B CN 202310497775 A CN202310497775 A CN 202310497775A CN 116213781 B CN116213781 B CN 116213781B
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- steel belt
- hole
- indexable
- transmission steel
- angle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B39/00—General-purpose boring or drilling machines or devices; Sets of boring and/or drilling machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/10—Arrangements for cooling or lubricating tools or work
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention relates to the technical field of machining tools, in particular to the technical field of indexable shallow hole drilling, and specifically relates to an indexable shallow hole drilling with chip removal assistance. The indexable shallow hole drill comprises a cutter body, a cutter handle, an inner cutter blade, an outer cutter blade, an inner spiral chip groove, an outer spiral chip groove, a Y-shaped cooling inner hole and a closed-loop transmission steel belt, wherein a strip-shaped guide groove consistent with the arrangement direction of the outer spiral chip groove is arranged on the outer spiral chip groove, a lower radial hole and an upper radial hole which are communicated with the cooling inner hole are respectively formed in the bottom end and the top end of the guide groove, and the transmission steel belt is sleeved outside an area formed by the strip-shaped guide groove, the lower radial hole, the cooling inner hole and the upper radial hole. The structure has novel and ingenious conception and can effectively improve the chip removal efficiency.
Description
Technical Field
The invention relates to the technical field of machining tools, in particular to the technical field of indexable shallow hole drilling, and specifically relates to an indexable shallow hole drilling with chip removal assistance.
Background
The indexable shallow hole drill is a drill bit using an indexable blade, and after the blade is worn, the drill bit is machined again by rotating the blade, so that convenience in blade replacement is not needed, high-speed drilling can be performed, and the machining efficiency is high. The indexable shallow hole drill comprises a cutter body and a cutter handle which are coaxially arranged, wherein the bottom end of the cutter handle is fixedly connected with the top end of the cutter body (the top end and the bottom end are relative to the installation direction of the drill bit when drilling a workpiece, the drill bit is vertically downward and the cutter body is positioned below the cutter handle when drilling, the part positioned above is called the top end, the part positioned below is called the bottom end), the bottom end of the cutter body is provided with two indexable blades for bearing a cutting task, one of the indexable blades is relatively close to the center of the drill bit and called the inner blade, the other indexable blade is relatively close to the outer circle of the drill bit and called the outer blade, in addition, the center of the indexable shallow hole drill is also provided with a Y-shaped cooling inner hole (one end opening of the Y-shaped cooling inner hole is positioned at the center of the top end face of the cutter handle, the two openings of the other end are respectively positioned at two sides of the bottom end face of the cutter body, and cooling liquid enters from the center of the top end face of the cutter handle and is used for cooling after being discharged from the bottom end of the cutter body).
The inner blade is close to the center of the drill, the fluctuation of cutting force is larger, the extruded materials are mainly used in the cutting process, so that chips generated in the cutting process are easy to break to form a section shape, the outer blade is far away from the center, the cutting process is stable, the cutting process mainly uses friction, the chips generated in the cutting process are usually in a longer strip shape, and in order to improve the chip removal efficiency, the inner spiral chip removal groove and the outer spiral chip removal groove corresponding to the positions of the inner blade and the outer blade are arranged on the outer circumferential surface of the conventional indexable shallow hole drill, but when the indexable shallow hole drill is used for high-speed drilling or large in feeding amount, the long chips generated at the outer blade are more, the chip removal requirement of the outer spiral chip removal groove cannot be met, and if the long chips cannot be discharged effectively, the long chips are wound, so that the normal workpiece processing is affected.
Disclosure of Invention
The invention provides an indexable shallow hole drill for assisting chip removal, which aims to solve the problem that the chip removal is difficult due to more long chips generated at an outer blade when the existing indexable shallow hole drill is used for high-speed drilling or has larger feeding amount.
The invention is realized by adopting the following technical scheme: the utility model provides an indexable shallow hole drill of supplementary chip removal, including the cutter body, the handle of a knife, interior blade, outer blade, interior spiral chip groove, outer spiral chip groove and Y type cooling hole, the transmission steel band of closed loop (the transmission steel band is the strip when the skilled person knows, can make the transmission steel band form the closed loop with the both ends of transmission steel band mode such as welding, bolted connection after the installation, be equipped with on the outer spiral chip groove with outer spiral chip groove arrangement direction unanimity and be used for the strip guide way of sliding placement transmission steel band, bottom and the top of guide way are opened respectively have with cooling hole intercommunication down radial hole and last radial hole, transmission steel band transmission cover is outside the closed loop region that guide way, down radial hole, cooling hole, go up radial hole forms, the lateral surface of transmission steel band (the lateral surface of transmission steel band indicates the lateral surface that keeps away from the closed loop center department of transmission steel band) on the equipartition has a plurality of lugs.
Working principle: when the indexable shallow hole drill drills a workpiece, cooling liquid enters from the center of the top end of the cutter handle and then passes through the center of the cutter handle and then is discharged from the bottom end of the cutter body, during the process, when the cooling liquid passes through a transmission steel belt which is transmitted to a cooling inner hole from the center of the top end of the cutter handle, the cooling liquid impacts a lug on the transmission steel belt, so that the transmission steel belt carries out closed-loop transmission, and when the indexable shallow hole drill drills the workpiece to discharge chips, the lug on the transmission steel belt which is transmitted to the strip-shaped guide groove drives the chips to be discharged, thereby achieving the aim of assisting chip removal.
Further, the transition surfaces of the two ends of the guide groove and the two ends of the cooling inner hole are arc surfaces respectively, so that the transmission resistance of the transmission steel belt is reduced, and the chip removal efficiency is improved.
Further, the bump is provided with chip teeth for cutting off the chips, so that the long chips are cut into sections, and the occurrence of winding of the long chips is reduced.
The beneficial effects of the invention are as follows: 1) The cutting chips are pushed to be discharged through closed-loop transmission of the transmission steel belt; 2) The cooling liquid is utilized to impact the convex blocks on the transmission steel belt to be used as the power for the transmission of the transmission steel belt, and an external power device is not needed; 3) The structure is novel and ingenious in conception.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.
FIG. 1 is a front view of the indexable gun drill of the present invention without a drive steel belt installed;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a top view of FIG. 1;
FIG. 4 is a schematic perspective view of the indexable gun drill of the present invention without a steel belt;
FIG. 5 is a schematic diagram showing a second perspective view of the indexable gun drill of the present invention without a steel belt;
FIG. 6 is an expanded view of the drive steel belt of the present invention;
FIG. 7 is a partial enlarged view at B in FIG. 6;
FIG. 8 is a schematic diagram of the closed loop drive principle of the drive steel belt of the present invention;
fig. 9 is a schematic perspective view of the indexable gun drill of the present invention after the transmission steel belt is installed.
In the figure: 1-knife body, 2-knife handle, 3-inner blade, 4-outer blade, 5-inner spiral chip groove, 6-outer spiral chip groove, 7-cooling inner hole, 8-transmission steel belt, 9-guide groove, 10-upper radial hole, 11-lower radial hole, 12-bump, 13-micro nut, 14-micro screw, 15-through hole, 16-chip tooth.
Detailed Description
In order that the above objects, features and advantages of the invention will be more clearly understood, a further description of the invention will be made. It should be noted that, without conflict, the embodiments of the present invention and features in the embodiments may be combined with each other.
In the description, it should be noted that the terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. It should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms described above will be understood by those of ordinary skill in the art as the case may be.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced otherwise than as described herein; it will be apparent that the embodiments in the specification are only some, but not all, embodiments of the invention.
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 9, an indexable shallow hole drill for assisting chip removal comprises a cutter body 1, a cutter handle 2, an inner blade 3, an outer blade 4, an inner spiral chip groove 5, an outer spiral chip groove 6, a Y-shaped cooling inner hole 7 and a closed-loop transmission steel belt 8 (as known by those skilled in the art, the transmission steel belt 8 is strip-shaped when being installed, two ends of the transmission steel belt 8 can be connected such as welded, bolted or the like after being installed so that the transmission steel belt 8 forms a closed loop), the outer spiral chip groove 6 is provided with a strip-shaped guide groove 9 which is consistent with the arrangement direction of the outer spiral chip groove 6 and is used for slidably placing the transmission steel belt 8, the bottom end and the top end of the guide groove 9 are respectively provided with a lower radial hole 11 and an upper radial hole 10 which are communicated with the cooling inner hole 7, the transmission steel belt 8 is sleeved outside a closed-loop area formed by the guide groove 9, the lower radial hole 11, the cooling inner hole 7 and the upper radial hole 10, and a plurality of lugs 12 are uniformly distributed on the outer side surface of the transmission steel belt 8 (the outer side surface of the transmission steel belt 8 refers to a side surface far from the closed-loop center of the transmission steel belt 8).
Working principle: as shown in fig. 8 and 9, the direction indicated by the vertical arrow in fig. 8 is the flowing direction of the cooling liquid, the direction indicated by the rotating arrow is the driving direction of the driving steel belt 8, specifically, when the workpiece is drilled by the indexable short hole drill, the cooling liquid enters the cooling inner hole from the center of the top end of the tool handle 2, namely, passes through the center of the tool handle 2 and the center of the tool body 1 and then is discharged from the bottom end of the tool body 1, and during the process, when the cooling liquid passes through the driving steel belt 8 which is driven to the cooling inner hole 7 from the center of the top end of the tool handle 2, the cooling liquid impacts the bump 12 on the driving steel belt 8, so that the driving steel belt 8 carries out closed-loop driving, and at the moment, when the workpiece is drilled by the indexable short hole drill, the chip is discharged by the bump 12 on the driving steel belt 8 which is driven to the guide groove 9, the chip is driven to be discharged, thereby achieving the purpose of assisting chip discharging.
In the concrete implementation, the transition surfaces of the two ends of the guide groove 9 and the two ends of the cooling inner hole 7 are arc surfaces respectively, so that the transmission resistance of the transmission steel belt 8 is reduced, and the chip removal efficiency is further improved.
In particular, the chip teeth 16 for cutting the chips are provided on the projections 12, so that the long chips are cut into segments, and the occurrence of winding of the long chips is reduced.
In specific implementation, the bump 12 is a right-angle triangular column, and one of right-angle faces of the right-angle triangular column is in contact with and fixedly connected with the outer side face of the transmission steel belt 8. The bump 12 structure is embodied and standardized.
In the concrete implementation, the other right angle surface of the right angle triangular column on the transmission steel belt 8 which is transmitted to the cooling inner hole 7 is positioned above the inclined surface of the right angle triangular column, so that the cooling liquid is convenient to impact, the transmission steel belt 8 is smoother, and the chip removal efficiency is further improved.
In particular, the crumb teeth 16 are located at a corner of the right triangular prism remote from the drive steel belt 8.
In specific implementation, as shown in fig. 6, 7 and 8, the transmission steel belt 8 includes a strip steel belt body and a micro nut 13, a micro screw 14 matched with the micro nut 13 is disposed on an outer side surface of one end portion of the steel belt body (a side surface of a closed loop center of the transmission steel belt is far away from when the outer side surface of the steel belt body is used for closing the transmission steel belt), a through hole 15 matched with the micro screw 14 is disposed on the other end portion of the steel belt body, and the micro screw 14 is screwed on the micro nut 13 after passing through the through hole 15, so that closed loop installation of the transmission steel belt is realized. In this embodiment, the through holes 15 on the other end of the steel strip body are multiple and multiple through holes 15 are uniformly distributed along the length direction of the steel strip body, and the tightness of the transmission steel strip is adjusted by performing adaptive installation with the through holes 15 at different positions through the micro screw 14.
The foregoing is only a specific embodiment of the invention to enable those skilled in the art to understand or practice the invention. Although described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the embodiments, and they should be construed as covering the scope of the appended claims.
Claims (4)
1. The indexable shallow hole drill for assisting chip removal comprises a cutter body (1), a cutter handle (2), an inner cutter blade (3), an outer cutter blade (4), an inner spiral chip groove (5), an outer spiral chip groove (6) and a Y-shaped cooling inner hole (7), and is characterized by further comprising a closed-loop transmission steel belt (8), wherein the outer spiral chip groove (6) is provided with a strip-shaped guide groove (9) which is consistent with the arrangement direction of the outer spiral chip groove (6) and is used for slidably placing the transmission steel belt (8), the bottom end and the top end of the guide groove (9) are respectively provided with a lower radial hole (11) and an upper radial hole (10) which are communicated with the cooling inner hole (7), the transmission steel belt (8) is sleeved outside a closed-loop area formed by the guide groove (9), the lower radial hole (11), the cooling inner hole (7) and the upper radial hole (10), a plurality of lugs (12) are uniformly distributed on the outer side surface of the transmission steel belt (8), the lugs (12) are right-angle triangular columns, one right-angle surface of the right-angle triangular columns is in contact with the outer side surface of the transmission steel belt (8) and fixedly connected, the right-angle surface of one right-angle triangular column is transmitted to the right-angle column body, the right-angle surface of the transmission steel belt (8) is provided with a right-angle triangular column body, the right-angle column surface of the other right-angle column is used for cutting chips, and chips are arranged on the right-angle column surface of the chip cutter, the crumb teeth (16) are located at a corner of the right triangular prism remote from the drive steel belt (8).
2. Indexable shallow hole drill for assisting chip removal according to claim 1, characterized in that the transition surfaces between the two ends of the guide groove (9) and the two ends of the cooling inner hole (7) are arc surfaces.
3. The indexable shallow hole drill for assisting chip removal according to claim 2, wherein the transmission steel belt (8) comprises a strip-shaped steel belt body and a miniature nut (13), a miniature screw rod (14) matched with the miniature nut (13) is arranged on the outer side surface of one end part of the steel belt body, a through hole (15) matched with the miniature screw rod (14) is arranged on the other end part of the steel belt body, and the miniature screw rod (14) is screwed on the miniature nut (13) after passing through the through hole (15).
4. A chip removal assisting indexable short hole drill according to claim 3, characterized in that the number of through holes (15) in the other end of the steel strip body is plural and the plural through holes (15) are uniformly distributed along the length of the steel strip body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310497775.3A CN116213781B (en) | 2023-05-06 | 2023-05-06 | Indexable shallow hole drill assisting chip removal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310497775.3A CN116213781B (en) | 2023-05-06 | 2023-05-06 | Indexable shallow hole drill assisting chip removal |
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| Publication Number | Publication Date |
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| CN116213781A CN116213781A (en) | 2023-06-06 |
| CN116213781B true CN116213781B (en) | 2023-07-14 |
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| CN202310497775.3A Active CN116213781B (en) | 2023-05-06 | 2023-05-06 | Indexable shallow hole drill assisting chip removal |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2184373A (en) * | 1985-12-21 | 1987-06-24 | Komet Stahlhalter Werkzeug | Drilling tool |
| CN1212643A (en) * | 1996-02-29 | 1999-03-31 | 彗星罗伯特布朗宁精密刀具有限公司 | Drilling tool for machine tool and method of producing the same |
| DE102005059703B3 (en) * | 2005-12-14 | 2006-12-14 | Audi Ag | Shaft tool used as a drilling tool, e.g. a reamer, comprises a guiding step raised opposite a groove plane and embedded in grooves to remove a mixture of used cooling lubricant and chips separately from an air stream |
| JP2012206205A (en) * | 2011-03-29 | 2012-10-25 | Mitsubishi Materials Corp | Drill holder, and cutting-edge replaceable drill |
| CN204148581U (en) * | 2014-10-15 | 2015-02-11 | 重庆金仑工业股份有限公司 | Can interior chip-removal drill bit |
| CN207534020U (en) * | 2017-11-22 | 2018-06-26 | 信一秀塔克机械（苏州）有限公司 | A kind of improved cutter arbor for depth drill |
| CN112605436A (en) * | 2020-10-27 | 2021-04-06 | 无锡秀研精密机械有限公司 | Novel drill bit installation chip removal mechanism |
| CN114029517A (en) * | 2021-12-02 | 2022-02-11 | 四川道勤切削工具有限公司 | Inner hole machining tool capable of automatically removing chips |
| CN114029532A (en) * | 2021-12-13 | 2022-02-11 | 株洲钻石切削刀具股份有限公司 | Modular drilling machining tool |
| CN115584934A (en) * | 2022-09-30 | 2023-01-10 | 深圳漠北能源科技有限公司 | Efficient oil drilling drill bit of center chip removal |
| CN115635119A (en) * | 2022-12-09 | 2023-01-24 | 江苏万众精密工具有限公司 | Drilling bit for plastic part processing machine tool and working method thereof |
| CN115716214A (en) * | 2022-11-14 | 2023-02-28 | 中航西安飞机工业集团股份有限公司 | Scrap cleaning device and scrap cleaning method for scrap winding of hole making cutter |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013175478A2 (en) * | 2012-05-24 | 2013-11-28 | Gershon System Ltd. | Method for designing a cutting edge of a cutting tool, cutting tools comprising the same, and cutting elements with multiple such cutting portions |
| US20180099337A1 (en) * | 2016-10-08 | 2018-04-12 | Ray Fitzgerald Woods | Devices for Broken Drill Bit Removal |
-
2023
- 2023-05-06 CN CN202310497775.3A patent/CN116213781B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2184373A (en) * | 1985-12-21 | 1987-06-24 | Komet Stahlhalter Werkzeug | Drilling tool |
| CN1212643A (en) * | 1996-02-29 | 1999-03-31 | 彗星罗伯特布朗宁精密刀具有限公司 | Drilling tool for machine tool and method of producing the same |
| DE102005059703B3 (en) * | 2005-12-14 | 2006-12-14 | Audi Ag | Shaft tool used as a drilling tool, e.g. a reamer, comprises a guiding step raised opposite a groove plane and embedded in grooves to remove a mixture of used cooling lubricant and chips separately from an air stream |
| JP2012206205A (en) * | 2011-03-29 | 2012-10-25 | Mitsubishi Materials Corp | Drill holder, and cutting-edge replaceable drill |
| CN204148581U (en) * | 2014-10-15 | 2015-02-11 | 重庆金仑工业股份有限公司 | Can interior chip-removal drill bit |
| CN207534020U (en) * | 2017-11-22 | 2018-06-26 | 信一秀塔克机械（苏州）有限公司 | A kind of improved cutter arbor for depth drill |
| CN112605436A (en) * | 2020-10-27 | 2021-04-06 | 无锡秀研精密机械有限公司 | Novel drill bit installation chip removal mechanism |
| CN114029517A (en) * | 2021-12-02 | 2022-02-11 | 四川道勤切削工具有限公司 | Inner hole machining tool capable of automatically removing chips |
| CN114029532A (en) * | 2021-12-13 | 2022-02-11 | 株洲钻石切削刀具股份有限公司 | Modular drilling machining tool |
| CN115584934A (en) * | 2022-09-30 | 2023-01-10 | 深圳漠北能源科技有限公司 | Efficient oil drilling drill bit of center chip removal |
| CN115716214A (en) * | 2022-11-14 | 2023-02-28 | 中航西安飞机工业集团股份有限公司 | Scrap cleaning device and scrap cleaning method for scrap winding of hole making cutter |
| CN115635119A (en) * | 2022-12-09 | 2023-01-24 | 江苏万众精密工具有限公司 | Drilling bit for plastic part processing machine tool and working method thereof |
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| Publication number | Publication date |
|---|---|
| CN116213781A (en) | 2023-06-06 |
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