CN112719375A - Method for prolonging service life of milling cutter during PCB board splitting - Google Patents
Method for prolonging service life of milling cutter during PCB board splitting Download PDFInfo
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- CN112719375A CN112719375A CN202011505078.0A CN202011505078A CN112719375A CN 112719375 A CN112719375 A CN 112719375A CN 202011505078 A CN202011505078 A CN 202011505078A CN 112719375 A CN112719375 A CN 112719375A
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- milling cutter
- cutting
- service life
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- axis feed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C9/00—Details or accessories so far as specially adapted to milling machines or cutter
-
- 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
- B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
- B23Q15/007—Automatic control or regulation of feed movement, cutting velocity or position of tool or work while the tool acts upon the workpiece
- B23Q15/08—Control or regulation of cutting velocity
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
The invention discloses a method for improving the service life of a milling cutter during PCB splitting, which comprises the following steps: setting the cutting speed of the milling cutter, cutting the independent PCB by adopting a reciprocating and circulating three-section and/or four-section Z-axis feed, starting cutting of the next section only when the milling cutter reaches the service life after the last section of circular cutting, and recording the length of the corresponding service life of the milling cutter when each section reaches the service life so as to obtain the service life of the milling cutter; the invention considers the influence of the cutting speed on the milling cutter, adjusts the cutting speed, and further improves the service life of the milling cutter.
Description
Technical Field
The invention relates to the technical field of milling cutters, in particular to a method for prolonging the service life of a milling cutter during PCB splitting.
Background
The aluminum substrate consists of a circuit layer (copper foil layer), an insulating layer and a metal base layer, has a good heat dissipation function, and is widely applied to the manufacturing industry of automobile electronic parts. The metal base layer is a supporting mechanism of the aluminum substrate and has the characteristics of large hardness coefficient, good thermal conductivity and extensibility and the like. When machining is cut apart, the high-speed rotation of main shaft drives milling cutter and carries out the aluminium material cutting, and considering aluminium essence hardness is big, and milling cutter is rotatory at high speed and the phenomenon of generating heat appears, quality abnormal phenomena such as aluminium base board cutting position department deckle edge, burr easily appear, after the milling cutter of renewal, although can improve present cutting deckle edge, burr anomaly, nevertheless have the restriction that milling cutter life is low (about 3 m). Frequently change milling cutter simultaneously and increase the cost in business, most enterprises are reduction in production cost, to cutting deckle edge, the manual file that uses of burr adoption personnel, clear up the clearance mode. Personnel manually clear up aluminium base board deckle edge burr and increased the human input cost.
In the prior art, as shown in fig. 1, a cutting surface of a milling cutter generally adopts three sections, and the sequence is as follows: the production of the first section for cutting the 1 st product, the cutting of the 2 nd product, the use of the second section, the cutting of the 3 rd product, the use of the third section, the cutting of the first section for producing the 4 th Panel using the milling cutter, the installation of the above sequence, and the reciprocating cycle.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects of the prior art, the invention provides a method for improving the service life of a milling cutter during PCB splitting, and the method can solve the problems of low cutting efficiency and high labor cost when the milling cutter is used for cutting a PCB.
The technical scheme is as follows: the invention discloses a method for improving the service life of a milling cutter during PCB splitting, which comprises the following steps:
set for milling cutter cutting speed, adopt the three-section and/or four-section Z axle feed cutting independent PCB board of reciprocal circulation, and wait for the cutting of first section circulation and make milling cutter reach life, just begin the cutting of next section, the length that every section milling cutter corresponds life when reaching life is recorded, and then obtains this milling cutter's life.
Further, the method comprises the following steps:
the cutting speed is set to be 200 mm/Min-290 mm/Min.
Further, the method comprises the following steps:
the cutting speed was set at 250 mm/Min.
Further, the method comprises the following steps:
and aiming at the PCB with the thickness of more than or equal to 1.65mm, three-section Z-axis feed cutting is adopted, and the PCB with the thickness of less than or equal to 1.15mm is cut by four-section Z-axis feed cutting.
Further, the method comprises the following steps:
the Z-axis feed data for each of the three-stage cutting and four-stage cutting can be set independently.
Further, the method comprises the following steps:
and aiming at the three-section type Z-axis feed cutting, the first section feed Z-axis descending value is smaller than the second section feed descending value, and the second section feed Z-axis descending value is smaller than the third section feed Z-axis descending value.
Further, the method comprises the following steps:
and aiming at the four-section type Z-axis feed cutting, the first section feed Z-axis descending value is smaller than the second section feed Z-axis descending value, and the second section feed Z-axis descending value is further smaller than the third section feed Z-axis descending value.
Further, the method comprises the following steps:
the milling cutter was a fishtail milling cutter from Union Tool, japan.
Has the advantages that: the invention considers the influence of the cutting speed on the milling cutter, adjusts the cutting speed, and further improves the service life of the milling cutter.
Drawings
FIG. 1 is a flow chart of a method according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments 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 invention provides a method for improving the service life of a milling cutter during PCB splitting, which comprises the following steps:
set for milling cutter cutting speed, adopt the three-section and/or four-section Z axle feed cutting independent PCB board of reciprocal circulation, and wait for the cutting of first section circulation and make milling cutter reach life, just begin the cutting of next section, the length that every section milling cutter corresponds life when reaching life is recorded, and then obtains this milling cutter's life.
Specifically, the method comprises the following steps:
firstly, the cutting speed of the milling cutter to the PCB is adjusted, the thickness of the PCB is set to be 1/65mm, the single-section cutting length is set to be 0.27m, and the mode of the three-section milling cutter is the same, in the embodiment, the cutting speed is set to be 200 mm/Min-300 mm/Min. Optimally, the cutting speed is set to 250 mm/s.
In this embodiment, the cutting speed is set to 450mm/Min, and about 1.08m, the milling cutter has slight burrs, and the burrs are manually lightly processed, and about 1.9m, the burrs are heavy and need to be cleaned by using a file.
The cutting speed is set to 420mm/Min again in this embodiment, about 1.5m at this time, the milling cutter has slight burrs, and the milling cutter can be manually lightly processed, and about 2.2m at this time, the burrs are heavy and need to be cleaned by using a file.
The cutting speed was again set to 350mm/Min, at which time about 1.58m, the milling cutter had slightly rough edges, which were manually light-treated, and about 2.3m, the rough edges were heavy and needed to be cleaned with a file.
The cutting speed is set to 290mm/Min, at the moment, about 1.95m, the milling cutter has slight burrs, and the burrs are manually lightly processed, and at about 2.7m, the burrs are heavy and need to be cleaned by a file.
The cutting speed is set to 250mm/Min, at the moment, about 2.05m, the milling cutter has slight burrs, and the milling cutter can be manually and lightly processed, and when about 3m, the burrs are heavy and need to be cleaned by a file.
The cutting speed is set to 200mm/Min, at the moment, about 1.9m, the milling cutter has slight burrs, and the milling cutter can be manually and lightly processed, and at about 2.5m, the burrs are heavy and need to be cleaned by a file.
When the cutting speed was set to 150mm/Min, the burr was heavy at about 1.89m, and it was cleaned with a file.
The milling cutter scrap rate due to the edge breakage was 3/4, which is a main cause of the reduction in the service life of the milling cutter, and it was found that the service life of the Union Tool fishtail milling cutter can be extended to 5m based on the conventional flow by communicating with well-known companies such as haen (germany), Union Tool (japan) and the like, which were manufacturers of milling cutters, from the viewpoint of the milling cutter material.
As shown in fig. 1, in the case of a constant cutter material, the present embodiment modifies three functions in the NC program, so that the service life of each milling cutter is reached after the quality abnormality occurs in cutting, and then the next milling cutter is replaced for cutting, and from the on-site result, the service life of the first milling cutter can reach 3m, the second milling cutter can reach 4.5m, the third milling cutter can reach 2.5m, and the service life of one milling cutter can reach 10 m. Namely: carry out the cutting of first section earlier to first PCB board, because first section milling cutter and chuck distance are big, vibrate the range during cutting greatly, the cutting edge wearing and tearing are severe, and data is little when event life sets up. In this embodiment, the first-stage feed Z-axis drop value is 1 mm; cutting the first section of the fourth PCB circularly, cutting the first section of the corresponding PCB circularly, and cutting the second section of the PCB after the quality is abnormal;
in the second section, the third section of milling cutter is close to the chuck, the chuck is stable for fixing the milling cutter, the oscillation amplitude is small during cutting, and the abrasion degree of the cutting edge is light, so that the service life is prolonged compared with that of the first section of milling cutter. In conclusion, no matter three-section type cutting or four-section type cutting is adopted, different data can be set for according to the vibration amplitude alone in each section, and the utilization rate of the milling cutter is increased and the service life of the milling cutter is prolonged by fully utilizing the characteristics of each section of the milling cutter.
In this embodiment, a three-stage Z-axis feed cutting is adopted for a PCB with a thickness of 1.65mm or more, and a four-stage Z-axis feed cutting is adopted for a PCB with a thickness of 1.15mm or less. Experiments prove that when the thickness of the aluminum substrate PCB is 1.15mm, the single-section cutting is adopted, and after the service life is up, the next section is manually replaced, so that the service life of the milling cutter can be prolonged to 12 m. Increase every section milling cutter and set for the different data functions of life alone, and have the four-section type, to the cutting length of different aluminium material PCB thickness make full use of milling cutter, prolonged milling cutter life, reduce manufacturing cost, through production test, actual effect is fine.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention without departing from the spirit or scope of the embodiments of the invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to encompass such modifications and variations.
Claims (8)
1. A method for improving the service life of a milling cutter during PCB splitting is characterized by comprising the following steps:
set for milling cutter cutting speed, adopt the three-section and/or four-section Z axle feed cutting independent PCB board of reciprocal circulation, and wait for the cutting of first section circulation and make milling cutter reach life, just begin the cutting of next section, the length that every section milling cutter corresponds life when reaching life is recorded, and then obtains this milling cutter's life.
2. The method for improving the service life of the milling cutter during PCB splitting as recited in claim 1, wherein the cutting speed is set to 200 mm/Min-290 mm/Min.
3. The method for improving the service life of the milling cutter during PCB board splitting as recited in claim 2, wherein the cutting speed is set to 250 mm/Min.
4. The method for improving the service life of the milling cutter during PCB board splitting according to claim 1, wherein the PCB board with the thickness of 1.65mm or more is cut by three-stage Z-axis feed, and the PCB board with the thickness of 1.15mm or less is cut by four-stage Z-axis feed.
5. The method for improving the service life of the milling cutter during PCB board splitting according to claim 4, wherein the Z-axis feed data of each segment of the three-segment cutting and the four-segment cutting can be set independently.
6. The method for improving the service life of the milling cutter during PCB board splitting according to claim 5, wherein for three-stage Z-axis feed cutting, the first stage Z-axis feed drop value is smaller than the second stage Z-axis feed drop value, and the second stage Z-axis feed drop value is smaller than the third stage Z-axis feed drop value.
7. The method for improving the service life of the milling cutter during PCB board splitting according to claim 5, wherein for four-segment Z-axis feed cutting, the first segment Z-axis feed drop value is smaller than the second segment Z-axis feed drop value, and the second segment Z-axis feed drop value is smaller than the third segment Z-axis feed drop value.
8. The method for improving the life of a milling cutter in PCB board separation as claimed in claim 1, wherein the milling cutter is a fishtail milling cutter of Union Tool, Japan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011505078.0A CN112719375A (en) | 2020-12-18 | 2020-12-18 | Method for prolonging service life of milling cutter during PCB board splitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011505078.0A CN112719375A (en) | 2020-12-18 | 2020-12-18 | Method for prolonging service life of milling cutter during PCB board splitting |
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| CN112719375A true CN112719375A (en) | 2021-04-30 |
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| CN202011505078.0A Pending CN112719375A (en) | 2020-12-18 | 2020-12-18 | Method for prolonging service life of milling cutter during PCB board splitting |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117283638A (en) * | 2023-11-27 | 2023-12-26 | 四川职业技术学院 | A cutting system for traditional Chinese medicine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06114797A (en) * | 1992-03-13 | 1994-04-26 | Tamachi Kogyo Kk | Cutting method for printed board and the like |
| CN101815406A (en) * | 2010-04-08 | 2010-08-25 | 梅州五洲电路板有限公司 | Process for cutting printed circuit board |
| CN102284733A (en) * | 2011-07-06 | 2011-12-21 | 奥士康精密电路（惠州）有限公司 | Gong plate method of printed circuit board (PCB) |
| CN103567520A (en) * | 2012-08-09 | 2014-02-12 | 上海工程技术大学 | Blind groove diamond coating milling cutter |
| CN105946015A (en) * | 2016-06-25 | 2016-09-21 | 苏州杰力澳自动化设备有限公司 | Full-automatic curved board dividing machine |
| CN108067943A (en) * | 2016-11-18 | 2018-05-25 | 蓝思科技（长沙）有限公司 | Zirconia ceramics structural member low roughness processing method and its equipment of use |
| CN110913587A (en) * | 2019-11-12 | 2020-03-24 | 奥士康科技股份有限公司 | Routing and cutting processing method for 0.8mm-1.2mm regular grooves of PCB |
-
2020
- 2020-12-18 CN CN202011505078.0A patent/CN112719375A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06114797A (en) * | 1992-03-13 | 1994-04-26 | Tamachi Kogyo Kk | Cutting method for printed board and the like |
| CN101815406A (en) * | 2010-04-08 | 2010-08-25 | 梅州五洲电路板有限公司 | Process for cutting printed circuit board |
| CN102284733A (en) * | 2011-07-06 | 2011-12-21 | 奥士康精密电路（惠州）有限公司 | Gong plate method of printed circuit board (PCB) |
| CN103567520A (en) * | 2012-08-09 | 2014-02-12 | 上海工程技术大学 | Blind groove diamond coating milling cutter |
| CN105946015A (en) * | 2016-06-25 | 2016-09-21 | 苏州杰力澳自动化设备有限公司 | Full-automatic curved board dividing machine |
| CN108067943A (en) * | 2016-11-18 | 2018-05-25 | 蓝思科技（长沙）有限公司 | Zirconia ceramics structural member low roughness processing method and its equipment of use |
| CN110913587A (en) * | 2019-11-12 | 2020-03-24 | 奥士康科技股份有限公司 | Routing and cutting processing method for 0.8mm-1.2mm regular grooves of PCB |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117283638A (en) * | 2023-11-27 | 2023-12-26 | 四川职业技术学院 | A cutting system for traditional Chinese medicine |
| CN117283638B (en) * | 2023-11-27 | 2024-02-09 | 四川职业技术学院 | A cutting system for traditional chinese medicine |
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Application publication date: 20210430 |
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