CN113079642A - Manufacturing method for eliminating burrs of thick copper plate PTH half-hole - Google Patents
Manufacturing method for eliminating burrs of thick copper plate PTH half-hole Download PDFInfo
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- CN113079642A CN113079642A CN202110258082.XA CN202110258082A CN113079642A CN 113079642 A CN113079642 A CN 113079642A CN 202110258082 A CN202110258082 A CN 202110258082A CN 113079642 A CN113079642 A CN 113079642A
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- manufacturing
- groove
- hole
- eliminating
- thick copper
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/0011—Working of insulating substrates or insulating layers
- H05K3/0044—Mechanical working of the substrate, e.g. drilling or punching
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/0011—Working of insulating substrates or insulating layers
- H05K3/0055—After-treatment, e.g. cleaning or desmearing of holes
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/02—Details related to mechanical or acoustic processing, e.g. drilling, punching, cutting, using ultrasound
- H05K2203/025—Abrading, e.g. grinding or sand blasting
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention provides a manufacturing method for eliminating burrs of a PTH half hole of a thick copper plate. The manufacturing method for eliminating the burrs of the PTH half-hole of the thick copper plate comprises the following steps: s1: manufacturing a gong belt; s2: sanding and high-pressure water washing are carried out after a gong is finished, and the step S1 specifically comprises the following steps: s101: roughly milling dust by using a cutter a with the diameter of 1.4 mm; s102: routing by using a knife b with the diameter of 1.0 mm; s103: finishing by using a cutter c with the diameter of 1.0 mm; s104: the burr trimmed by a cutter d with the diameter of 0.8mm-0.9mm is used. The manufacturing method for eliminating the PTH half-hole burrs of the thick copper plate can thoroughly solve the PTH half-hole burrs, save the cost for repairing the burrs subsequently and improve the product quality.
Description
Technical Field
The invention relates to the technical field of circuit boards, in particular to a manufacturing method for eliminating burrs of a PTH half-hole of a thick copper plate.
Background
In the prior art, PTH half-hole plates are mostly manufactured due to half-hole burrs, and particularly, plates with inner-layer bottom copper exceeding 3OZ are manufactured. Because the inner layer bottom copper of the multilayer board exceeds 3OZ, when a half hole is milled, burrs are formed at the intersection position of the half hole and the groove due to the action of stress and the easy-stretching characteristic of copper, and the burrs cannot be eliminated by 100%, so that the product quality is influenced.
Therefore, it is necessary to provide a new manufacturing method for eliminating the burr of the thick copper plate PTH half-hole to solve the above technical problems.
Disclosure of Invention
The invention aims to provide a manufacturing method for eliminating burrs of a PTH half-hole of a thick copper plate, which is simple in process.
In order to solve the technical problem, the manufacturing method for eliminating the burr of the PTH half hole of the thick copper plate provided by the invention comprises the following steps:
s1: manufacturing a gong belt;
s2: and grinding and high-pressure water washing are carried out after one gong is finished.
Preferably, the step S1 specifically includes the following steps:
s101: roughly milling dust by using a cutter a with the diameter of 1.4 mm;
s102: routing by using a knife b with the diameter of 1.0 mm;
s103: finishing by using a cutter c with the diameter of 1.0 mm;
s104: the burr trimmed by a cutter d with the diameter of 0.8mm-0.9mm is used.
Preferably, in the step S101, 0.2mm is reserved for single side of coarse gong dust.
Preferably, the diameter of the blade d in step S104 is 0.8 mm.
Preferably, the diameter of the blade d in step S104 is 0.9 mm.
Preferably, use dull polish equipment to dull polish in step S1, dull polish equipment includes the roof, a plurality of electric telescopic handle are installed to the bottom side of roof, electric telescopic handle' S bottom side fixed mounting has the stabilizer blade, the top side fixed mounting of roof has first motor, fixed mounting has the lead screw on the output shaft of first motor, the screw thread has cup jointed and has removed the seat on the lead screw, the bar hole has been seted up to the top side of roof, the downthehole fixed mounting of bar has the dead lever, it runs through to remove the seat the bar hole and with the dead lever slides and cup joints, remove the bottom side of seat and install the second motor, be connected with the subassembly of polishing on the output shaft of second motor.
Preferably, a plurality of rotating seats are installed on the top side of the top plate, and the rotating seats are rotatably sleeved with the screw rod.
Preferably, the grinding assembly comprises a mounting seat, a mounting groove is arranged on the bottom side of the mounting seat, an installation block is installed in the installation groove, the bottom side of the installation block extends out of the installation groove and is fixedly connected with a polishing disc, the inner walls of the two sides of the mounting groove are respectively provided with a groove, a sliding rod is arranged in the groove in a sliding way, one end of the sliding rod extends out of the groove and is fixedly connected with a spherical chuck, an annular clamping groove is annularly arranged on the mounting block, the spherical chuck is matched with the annular clamping groove, the other end of the sliding rod is provided with a sliding groove, a supporting rod is fixedly arranged on the inner wall of one side of the groove, one end of the supporting rod extends into the sliding groove and is connected with the sliding groove in a sliding way, the supporting rod is sleeved with a spring, one end of the spring is fixedly connected with the inner wall of the groove, and the other end of the spring is fixedly connected with the sliding rod.
Preferably, the top end of the mounting block is arc-shaped.
Preferably, the inner walls of the two sides of the mounting groove are provided with positioning grooves, the bottom sides of the positioning grooves are provided with openings, the two sides of the mounting block are fixedly provided with positioning blocks, and the positioning blocks are matched with the positioning grooves.
Compared with the related technology, the manufacturing method for eliminating the burrs of the PTH half-hole of the thick copper plate provided by the invention has the following beneficial effects:
the invention provides a manufacturing method for eliminating PTH half-hole burrs of a thick copper plate, which can thoroughly solve the PTH half-hole burrs, save the cost generated by subsequent burr repair and improve the product quality.
Drawings
FIG. 1 is a schematic structural diagram of a preferred embodiment of the manufacturing method for eliminating burrs of PTH half holes of thick copper plates according to the present invention;
FIG. 2 is a schematic view of a sanding apparatus;
FIG. 3 is a schematic diagram of the sanding assembly of FIG. 2;
FIG. 4 is a schematic structural view of the mounting block shown in FIG. 3;
FIG. 5 is a bottom view of the mounting base shown in FIG. 3;
fig. 6 is a bottom view of the mounting block shown in fig. 3.
Reference numbers in the figures: 1. roof, 2, electric telescopic handle, 3, stabilizer blade, 4, first motor, 5, lead screw, 6, rotate the seat, 7, remove the seat, 8, the bar hole, 9, the dead lever, 10, the second motor, 11, the subassembly of polishing, 12, the mount pad, 13, the mounting groove, 14, the installation piece, 15, the dish of polishing, 16, ring groove, 17, the recess, 18, the slide bar, 19, the spherical dop, 20, the spout, 21, branch, 22, the spring, 23, the locating piece, 24, the constant head tank.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
The first embodiment:
referring to fig. 1, in a first embodiment of the present invention, a method for removing burrs of a PTH half hole of a thick copper plate includes the following steps:
s1: manufacturing a gong belt;
s2: and grinding and high-pressure water washing are carried out after one gong is finished.
The step S1 specifically includes the following steps:
s101: roughly milling dust by using a cutter a with the diameter of 1.4 mm;
s102: routing by using a knife b with the diameter of 1.0 mm;
s103: finishing by using a cutter c with the diameter of 1.0 mm;
s104: the burr trimmed by a cutter d with the diameter of 0.8mm-0.9mm is used.
And in the step S101, 0.2mm is reserved on the single side of the coarse gong dust.
The diameter of the blade d in the step S104 is 0.8 mm.
The diameter of the blade d in the step S104 is 0.9 mm.
Compared with the related technology, the manufacturing method for eliminating the burrs of the PTH half-hole of the thick copper plate provided by the invention has the following beneficial effects:
the invention provides a manufacturing method for eliminating PTH half-hole burrs of a thick copper plate, which can thoroughly solve the PTH half-hole burrs, save the cost generated by subsequent burr repair and improve the product quality.
Second embodiment:
based on the manufacturing method for eliminating the thick copper plate PTH half-hole burrs provided by the first embodiment of the application, the second embodiment of the application provides another manufacturing method for eliminating the thick copper plate PTH half-hole burrs. The second embodiment is merely a preferred way of the first embodiment, and the implementation of the second embodiment does not affect the implementation of the first embodiment alone.
The second embodiment of the present invention will be further described with reference to the drawings and the following description.
Referring to fig. 2 to 6, the embodiment is different from the first embodiment in that a sanding device is used for sanding in step S1, the sanding device includes a top plate 1, a plurality of electric telescopic rods 2 are installed on a bottom side of the top plate 1, support legs 3 are fixedly installed on a bottom side of the electric telescopic rods 2, a first motor 4 is fixedly installed on a top side of the top plate 1, a lead screw 5 is fixedly installed on an output shaft of the first motor 4, a moving seat 7 is sleeved on the lead screw 5 in a threaded manner, a strip-shaped hole 8 is formed in a top side of the top plate 1, a fixing rod 9 is fixedly installed in the strip-shaped hole 8, the moving seat 7 penetrates through the strip-shaped hole 8 and is slidably sleeved with the fixing rod 9, a second motor 10 is installed on a bottom side of the moving seat 7, and an output shaft of the second motor 10 is connected with a.
A plurality of rotating seats 6 are installed on the top side of the top plate 1, and the rotating seats 6 are rotatably sleeved with the screw rod 5.
The polishing component 11 comprises a mounting seat 12, a mounting groove 13 is formed in the bottom side of the mounting seat 12, a mounting block 14 is mounted in the mounting groove 13, the bottom side of the mounting block 14 extends out of the mounting groove 13 and is fixedly connected with a polishing disc 15, grooves 17 are formed in the inner walls of the two sides of the mounting groove 13, a sliding rod 18 is slidably mounted in the groove 17, one end of the sliding rod 18 extends out of the groove 17 and is fixedly connected with a spherical clamping head 19, an annular clamping groove 16 is annularly formed in the mounting block 14, the spherical clamping head 19 is matched with the annular clamping groove 16, a sliding groove 20 is formed in the other end of the sliding rod 18, a supporting rod 21 is fixedly mounted on the inner wall of one side of the groove 17, one end of the supporting rod 21 extends into the sliding groove 20 and is slidably connected with the sliding groove 20, a spring 22 is sleeved on the supporting rod 21, and one end of the spring 22, the other end of the spring 22 is fixedly connected with the slide bar 18.
The top end of the mounting block 14 is arc-shaped.
Positioning grooves 24 are formed in the inner walls of the two sides of the mounting groove 13, the bottom sides of the positioning grooves 24 are provided with openings, positioning blocks 23 are fixedly mounted on the two sides of the mounting block 14, and the positioning blocks 23 are matched with the positioning grooves 24.
Start first motor 4 during the use, the output shaft of first motor 4 drives lead screw 5 and rotates, lead screw 5 drives and removes seat 7 and slides on lead screw 5, it drives second motor 10 and removes to remove seat 7, second motor 10 drives the subassembly 11 that polishes and removes, when needs change polish dish 15, draw down and drag polish dish 15, polish dish 15 and drive installation piece 14 and remove downwards, installation piece 14 extrusion spherical dop 19, spherical dop 19 drives slide bar 18 extrusion spring 22, polish dish 15 and can dismantle after spherical dop 19 breaks away from ring groove 16.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A manufacturing method for eliminating burrs of a PTH half hole of a thick copper plate is characterized by comprising the following steps:
s1: manufacturing a gong belt;
s2: and grinding and high-pressure water washing are carried out after one gong is finished.
2. The manufacturing method for eliminating the burrs of the PTH half hole of the thick copper plate according to claim 1, wherein the step S1 comprises the following steps:
s101: roughly milling dust by using a cutter a with the diameter of 1.4 mm;
s102: routing by using a knife b with the diameter of 1.0 mm;
s103: finishing by using a cutter c with the diameter of 1.0 mm;
s104: the burr trimmed by a cutter d with the diameter of 0.8mm-0.9mm is used.
3. The manufacturing method for eliminating the PTH half-hole burrs of the thick copper plate as claimed in claim 2, wherein 0.2mm is reserved on one side of the coarse gong dust in step S101.
4. The manufacturing method for eliminating the burr of the thick copper plate PTH half-hole as claimed in claim 2, wherein the diameter of the blade d in step S104 is 0.8 mm.
5. The manufacturing method for eliminating the burr of the thick copper plate PTH half-hole as claimed in claim 2, wherein the diameter of the blade d in step S104 is 0.9 mm.
6. The manufacturing method of claim 1, wherein in step S1, a sanding device is used for sanding, the sanding device includes a top plate, a plurality of electric telescopic rods are mounted on a bottom side of the top plate, support legs are fixedly mounted on a bottom side of the electric telescopic rods, a first motor is fixedly mounted on a top side of the top plate, a lead screw is fixedly mounted on an output shaft of the first motor, a moving seat is sleeved on the lead screw through threads, a strip-shaped hole is formed in a top side of the top plate, a fixing rod is fixedly mounted in the strip-shaped hole, the moving seat penetrates through the strip-shaped hole and is slidably sleeved with the fixing rod, a second motor is mounted on a bottom side of the moving seat, and a sanding component is connected to an output shaft of the second motor.
7. The manufacturing method for eliminating the burrs of the PTH half holes of the thick copper plate as claimed in claim 6, wherein a plurality of rotating seats are installed on the top side of the top plate, and the rotating seats are rotatably sleeved with the screw rod.
8. The manufacturing method of claim 6, wherein the grinding assembly comprises a mounting seat, a mounting groove is formed in the bottom side of the mounting seat, a mounting block is mounted in the mounting groove, the bottom side of the mounting block extends out of the mounting groove and is fixedly connected with a grinding disc, grooves are formed in the inner walls of the two sides of the mounting groove, a sliding rod is slidably mounted in the groove, one end of the sliding rod extends out of the groove and is fixedly connected with a ball chuck, an annular clamping groove is formed in the mounting block in an annular shape, the ball chuck is matched with the annular clamping groove, a sliding groove is formed in the other end of the sliding rod, a supporting rod is fixedly mounted on the inner wall of one side of the groove, one end of the supporting rod extends into the sliding groove and is slidably connected with the sliding groove, and a spring is sleeved on the supporting rod, one end of the spring is fixedly connected with the inner wall of the groove, and the other end of the spring is fixedly connected with the sliding rod.
9. The method of claim 8, wherein the top end of the mounting block is curved.
10. The manufacturing method of eliminating the PTH half hole burrs of the thick copper plate as claimed in claim 8, wherein positioning grooves are formed in the inner walls of the two sides of the mounting groove, the bottom side of each positioning groove is provided with an opening, positioning blocks are fixedly mounted on the two sides of the mounting block, and the positioning blocks are matched with the positioning grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110258082.XA CN113079642B (en) | 2021-03-10 | 2021-03-10 | Manufacturing method for eliminating burrs of thick copper plate PTH half-hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110258082.XA CN113079642B (en) | 2021-03-10 | 2021-03-10 | Manufacturing method for eliminating burrs of thick copper plate PTH half-hole |
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| Publication Number | Publication Date |
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| CN113079642A true CN113079642A (en) | 2021-07-06 |
| CN113079642B CN113079642B (en) | 2022-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110258082.XA Active CN113079642B (en) | 2021-03-10 | 2021-03-10 | Manufacturing method for eliminating burrs of thick copper plate PTH half-hole |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0304472A1 (en) * | 1987-03-09 | 1989-03-01 | The Charles Stark Draper Laboratory, Inc. | Biased grinding assembly |
| KR980000637A (en) * | 1996-06-24 | 1998-03-30 | 김광호 | Gold plated terminal cleaning device |
| CN112040652A (en) * | 2020-08-24 | 2020-12-04 | 胜宏科技（惠州）股份有限公司 | Forming method for improving PTH half-hole burrs |
| CN212145794U (en) * | 2020-03-21 | 2020-12-15 | 温州山立密封件有限公司 | Electric linear polishing and grinding machine |
| CN112091758A (en) * | 2020-09-16 | 2020-12-18 | 奥士康科技股份有限公司 | PCB board production and processing drilling cleaning device |
-
2021
- 2021-03-10 CN CN202110258082.XA patent/CN113079642B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0304472A1 (en) * | 1987-03-09 | 1989-03-01 | The Charles Stark Draper Laboratory, Inc. | Biased grinding assembly |
| KR980000637A (en) * | 1996-06-24 | 1998-03-30 | 김광호 | Gold plated terminal cleaning device |
| CN212145794U (en) * | 2020-03-21 | 2020-12-15 | 温州山立密封件有限公司 | Electric linear polishing and grinding machine |
| CN112040652A (en) * | 2020-08-24 | 2020-12-04 | 胜宏科技（惠州）股份有限公司 | Forming method for improving PTH half-hole burrs |
| CN112091758A (en) * | 2020-09-16 | 2020-12-18 | 奥士康科技股份有限公司 | PCB board production and processing drilling cleaning device |
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| Publication number | Publication date |
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| CN113079642B (en) | 2022-06-17 |
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