CN111010802A - L-shaped groove hole machining method based on PCB - Google Patents
L-shaped groove hole machining method based on PCB Download PDFInfo
- Publication number
- CN111010802A CN111010802A CN201911248317.6A CN201911248317A CN111010802A CN 111010802 A CN111010802 A CN 111010802A CN 201911248317 A CN201911248317 A CN 201911248317A CN 111010802 A CN111010802 A CN 111010802A
- Authority
- CN
- China
- Prior art keywords
- slot
- transverse
- longitudinal
- slotted hole
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
- H05K3/0047—Drilling 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
- 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
Abstract
The invention provides a PCB-based L-shaped slot hole processing method, which comprises the following steps: dividing the L-shaped slot into a transverse slot and a longitudinal slot according to the processing steps, establishing a plane rectangular coordinate system by taking the intersection point of the two slots as an original point to form four quadrants, and judging the quadrant of an included angle formed by the transverse slot and the longitudinal slot; if the groove is in the first quadrant, the processing sequence is that the longitudinal groove hole is processed firstly, and the transverse groove hole is processed secondly; if the groove is in the second quadrant, the processing sequence is that the transverse groove hole is processed firstly, and the longitudinal groove hole is processed secondly; if the groove is in the third quadrant, the processing sequence is that the longitudinal groove hole is processed firstly, and the transverse groove hole is processed secondly; if the groove is in the fourth quadrant, the processing sequence is that the transverse groove hole is processed firstly, and the longitudinal groove hole is processed secondly; manufacturing a drill belt; the L-shaped slot is divided into two sections of unidirectional slots for slotting, and a special cutter path is provided, so that burrs are avoided.
Description
Technical Field
The invention belongs to the field of PCB (printed circuit board) manufacturing, and particularly relates to a PCB-based L-shaped slot hole machining method.
Background
Pcb (printed Circuit board), which is called printed Circuit board in chinese, is an important electronic component, is a support for electronic components, and is a carrier for electrical connection of electronic components. It is called a "printed" circuit board because it is made using electronic printing. In the process of manufacturing the PCB, a large number of holes are needed to be drilled for matching with the package original or the internal circuit connection of the PCB, wherein the holes comprise L-shaped slotted holes.
The L-shaped slot holes need to be subjected to slotting process twice, and the two slot holes are intersected at one position to form a corner. Burrs can be generated at the corners, subsequent processing needs to be carried out on the burrs, and unnecessary loss is brought due to the breakage rate of the subsequent processing process when the work hours are lost.
Disclosure of Invention
The invention aims to achieve the effect that the L-shaped groove hole has no burr after the grooving is finished and avoid a subsequent treatment process of trimming the burr by improving the processing method of the L-shaped groove hole.
The invention is realized by the following technical scheme:
a PCB-based L-shaped slot hole machining method is characterized by comprising the following steps:
s1, dividing the L-shaped slot into a transverse slot and a longitudinal slot according to the processing steps, establishing a plane rectangular coordinate system by taking the intersection point of the two slots as an original point to form four quadrants, and judging the quadrant of an included angle formed by the transverse slot and the longitudinal slot;
s2, according to the judgment in the step S1, if the included angle formed by the transverse slotted hole and the longitudinal slotted hole is in the first quadrant, the processing sequence is that the longitudinal slotted hole is processed firstly, and then the transverse slotted hole is processed;
s3, according to the judgment in the step S1, if the included angle formed by the transverse slotted hole and the longitudinal slotted hole is in the second quadrant, the processing sequence is that the transverse slotted hole is processed firstly, and the longitudinal slotted hole is processed secondly;
s4, according to the judgment in the step S1, if the included angle formed by the transverse slotted hole and the longitudinal slotted hole is in the third quadrant, the processing sequence is that the longitudinal slotted hole is processed firstly, and then the transverse slotted hole is processed;
s5, according to the judgment in the step S1, if the included angle formed by the transverse slotted hole and the longitudinal slotted hole is in the fourth quadrant, the processing sequence is that the transverse slotted hole is processed firstly, and the longitudinal slotted hole is processed secondly;
s6, manufacturing a drill tape by adopting the processing sequence determined in the S2-S5 corresponding to the S1;
and S7, completing the drilling process of the L-shaped slotted hole.
Further, in the step S6, the rotation direction of the tool in the drill strip parameters is set to be clockwise rotation.
Further, if it is determined that the first quadrant is determined in the step S1, the tool path for manufacturing the drill tape in the step S6 is: feeding from one end of the longitudinal slot far away from the original point to finish the longitudinal slot, and then feeding from the original point to the X-axis forward direction to finish the transverse slot.
Further, if the second quadrant is determined in the step S1, the tool path for manufacturing the drill strip in the step S6 is: feeding from one end of the transverse slot far away from the original point to finish the transverse slot, and then feeding from the original point to the Y-axis forward direction to finish the longitudinal slot.
Further, if it is determined as the third quadrant in the step S1, the tool path for manufacturing the drill tape in the step S6 is: feeding from one end of the longitudinal slot far away from the original point to finish the longitudinal slot, and then feeding from the original point to the negative direction of the X axis to finish the transverse slot.
Further, if it is determined that the fourth quadrant is determined in the step S1, the tool path for manufacturing the drill tape in the step S6 is: feeding from one end of the transverse slot far away from the original point to finish the transverse slot, and then feeding from the original point to the Y-axis to finish the longitudinal slot.
Further, in the step S6, the tool path for manufacturing the drill strip is: and carrying out a slotting process and then carrying out a slot expanding process on each slot hole.
Furthermore, the diameter of the slotting cutter is 1.1 mm.
Further, the diameter of the groove expanding cutter is 1.3 mm.
Further, the cutter path for manufacturing the drill strip is as follows: after the grooving process and the slot expanding process of the transverse slot hole/the longitudinal slot hole of the L-shaped slot hole are finished to obtain a complete slot hole, the processing process of the longitudinal slot hole/the transverse slot hole is carried out.
Further, the generation principle of the burr is as follows: in the traditional process, a cutter path is directly designed into an L shape for grooving. When grooving is carried out to the corner, because the route that the cutter passed through is bored empty, the panel of corner receives the rotatory cutting effect of cutter side direction, can drag out the burr to the direction of being bored empty.
The technical principle of the invention is as follows: the L-shaped grooving process is improved into a process combination of two one-way slotted hole grooving processes, so that the problem that when a cutter is at a corner, due to the fact that a to-be-grooved area is communicated with a grooved area and is mutually in a right angle, the corner loses plate support at one side of the grooved area, and wire drawing and burrs are generated is solved.
In order to further improve the deburring effect, an independent tool path design is needed according to different trends of the L-shaped slot holes. What is needed first is to determine the orientation of the L-shaped slots. In the invention, a plane rectangular coordinate system is established and four quadrants are divided to position the shape and the trend of the L-shaped slotted hole. And splitting the L-shaped slot into a transverse slot and a longitudinal slot. The intersection of the transverse slot and the longitudinal slot is set as the origin, and the X axis of the horizontal coordinate and the Y axis of the vertical coordinate are established. After the intersection point of two unidirectional slotted holes in the L-shaped slotted hole is superposed with the original point, the included angle area formed by the two unidirectional slotted holes is arranged in a quadrant of the plane rectangular coordinate system, so that the shape of the L-shaped slotted hole is judged.
Aiming at four forms of the L-shaped slotted hole presented by four quadrants in a plane rectangular coordinate system, a special cutter path is designed aiming at the L-shaped slotted hole of each form. So that the L-shaped slot hole can be grooved in any shape. The rotation direction of the cutter is matched with the cutter path, so that when the cutter is used for cutting a plate positioned at a corner, the cutter rotates from the direction of the grooved area to the direction of the area to be grooved, and the problem that wire drawing and burrs are easily generated due to the fact that the grooved area which is drilled to be hollow does not have a supporting effect is solved by the rotation direction.
The invention has the beneficial effects that: the L-shaped slot is divided into two sections of unidirectional slots for slotting, so that burrs are avoided. The cutter path aiming at the L-shaped slotted holes in the four forms is designed, so that the deburring effect is further enhanced. And finally, the overall quality of the L-shaped slotted hole is improved by slotting and expanding the unidirectional slotted hole.
Drawings
Fig. 1 is a schematic view of an L-shaped slot in a first quadrant according to an embodiment of the present invention.
FIG. 2 is a schematic view of an L-shaped slot in the second quadrant according to an embodiment of the present invention.
Fig. 3 is a schematic view of an L-shaped slot in the third quadrant according to an embodiment of the present invention.
Fig. 4 is a diagram of an L-shaped slot in the fourth quadrant according to an embodiment of the present invention.
Detailed Description
The invention is further illustrated by the following figures and examples.
Referring to fig. 1, 2, 3 and 4,
example 1:
a PCB-based L-shaped slot hole machining method is characterized by comprising the following steps:
s1, dividing the L-shaped slot into a transverse slot and a longitudinal slot according to the processing steps, establishing a plane rectangular coordinate system by taking the intersection point of the two slots as an original point to form four quadrants, and judging the quadrant of an included angle formed by the transverse slot and the longitudinal slot;
s2, according to the judgment in the step S1, if the included angle formed by the transverse slotted hole and the longitudinal slotted hole is in the first quadrant, the processing sequence is that the longitudinal slotted hole is processed firstly, and then the transverse slotted hole is processed;
s3, according to the judgment in the step S1, if the included angle formed by the transverse slotted hole and the longitudinal slotted hole is in the second quadrant, the processing sequence is that the transverse slotted hole is processed firstly, and the longitudinal slotted hole is processed secondly;
s4, according to the judgment in the step S1, if the included angle formed by the transverse slotted hole and the longitudinal slotted hole is in the third quadrant, the processing sequence is that the longitudinal slotted hole is processed firstly, and then the transverse slotted hole is processed;
s5, according to the judgment in the step S1, if the included angle formed by the transverse slotted hole and the longitudinal slotted hole is in the fourth quadrant, the processing sequence is that the transverse slotted hole is processed firstly, and the longitudinal slotted hole is processed secondly;
s6, manufacturing a drill tape by adopting the processing sequence determined in the S2-S5 corresponding to the S1;
and S7, completing the drilling process of the L-shaped slotted hole.
The L-shaped grooving process is improved into a process combination of two one-way slotted hole grooving processes, so that the problem that when a cutter is at a corner, due to the fact that a to-be-grooved area is communicated with a grooved area and is mutually in a right angle, the corner loses plate support at one side of the grooved area, and wire drawing and burrs are generated is solved.
Example 2:
on the basis of the embodiment 1, the technical scheme is automatically improved, and the specific improvement scheme is as follows:
the rotation direction of the cutter is set to be clockwise rotation in the drilling belt parameters.
Aiming at the L-shaped groove in the first quadrant form, the cutter path for manufacturing the drill strip is as follows: feeding from one end of the longitudinal slot far away from the original point to finish the longitudinal slot, and then feeding from the original point to the X-axis forward direction to finish the transverse slot.
Aiming at the L-shaped groove in the second quadrant shape, the cutter path for manufacturing the drill strip is as follows: feeding from one end of the transverse slot far away from the original point to finish the transverse slot, and then feeding from the original point to the Y-axis forward direction to finish the longitudinal slot.
Aiming at the L-shaped groove in the third quadrant form, the cutter path for manufacturing the drill strip is as follows: feeding from one end of the longitudinal slot far away from the original point to finish the longitudinal slot, and then feeding from the original point to the negative direction of the X axis to finish the transverse slot.
Aiming at the L-shaped groove in the fourth quadrant form, the cutter path for manufacturing the drill strip is as follows: feeding from one end of the transverse slot far away from the original point to finish the transverse slot, and then feeding from the original point to the Y-axis to finish the longitudinal slot.
In order to further improve the deburring effect, an independent tool path design is needed according to different trends of the L-shaped slot holes. What is needed first is to determine the orientation of the L-shaped slots. In the invention, a plane rectangular coordinate system is established and four quadrants are divided to position the shape and the trend of the L-shaped slotted hole. And splitting the L-shaped slot into a transverse slot and a longitudinal slot. The intersection of the transverse slot and the longitudinal slot is set as the origin, and the X axis of the horizontal coordinate and the Y axis of the vertical coordinate are established. After the intersection point of two unidirectional slotted holes in the L-shaped slotted hole is superposed with the original point, the included angle area formed by the two unidirectional slotted holes is arranged in a quadrant of the plane rectangular coordinate system, so that the shape of the L-shaped slotted hole is judged. Aiming at four forms of the L-shaped slotted hole presented by four quadrants in a plane rectangular coordinate system, a special cutter path is designed aiming at the L-shaped slotted hole of each form. So that the L-shaped slot hole can be grooved in any shape. The rotation direction of the cutter is matched with the cutter path, so that when the cutter is used for cutting a plate positioned at a corner, the cutter rotates from the direction of the grooved area to the direction of the area to be grooved, and the problem that wire drawing and burrs are easily generated due to the fact that the grooved area which is drilled to be hollow does not have a supporting effect is solved by the rotation direction.
Example 3:
on the basis of the embodiment 1 or the embodiment 2, the technical scheme is improved as follows:
the cutter path for making the drill strip is as follows: and carrying out a slotting process and then carrying out a slot expanding process on each slot hole.
The diameter of the slotting cutter is 1.1 mm.
The diameter of the groove expanding cutter is 1.3 mm.
The cutter path for making the drill strip is as follows: after the grooving process and the slot expanding process of the transverse slot hole/the longitudinal slot hole of the L-shaped slot hole are finished to obtain a complete slot hole, the processing process of the longitudinal slot hole/the transverse slot hole is carried out.
In order to make the size of the slot more accurate and ensure the side wall of the slot to be smoother, the slotting process of the unidirectional slot is divided into two steps, namely a slotting process and a slot expanding process. Can more effectively avoid burr production when promoting the slotted hole quality.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any other embodiments that can be easily conceived or replaced by those skilled in the art within the technical scope of the present invention should be covered by the present invention.
The invention is applied to a large data server system board set based on a purley platform.
The present invention is not limited to the above-described embodiments, and various modifications and variations of the present invention are intended to be included within the scope of the claims and the equivalent technology of the present invention if they do not depart from the spirit and scope of the present invention.
Claims (10)
1. A PCB-based L-shaped slot hole machining method is characterized by comprising the following steps:
s1, dividing the L-shaped slot into a transverse slot and a longitudinal slot according to the processing steps, establishing a plane rectangular coordinate system by taking the intersection point of the two slots as an original point to form four quadrants, and judging the quadrant of an included angle formed by the transverse slot and the longitudinal slot;
s2, according to the judgment in the step S1, if the included angle formed by the transverse slotted hole and the longitudinal slotted hole is in the first quadrant, the processing sequence is that the longitudinal slotted hole is processed firstly, and then the transverse slotted hole is processed;
s3, according to the judgment in the step S1, if the included angle formed by the transverse slotted hole and the longitudinal slotted hole is in the second quadrant, the processing sequence is that the transverse slotted hole is processed firstly, and the longitudinal slotted hole is processed secondly;
s4, according to the judgment in the step S1, if the included angle formed by the transverse slotted hole and the longitudinal slotted hole is in the third quadrant, the processing sequence is that the longitudinal slotted hole is processed firstly, and then the transverse slotted hole is processed;
s5, according to the judgment in the step S1, if the included angle formed by the transverse slotted hole and the longitudinal slotted hole is in the fourth quadrant, the processing sequence is that the transverse slotted hole is processed firstly, and the longitudinal slotted hole is processed secondly;
s6, manufacturing a drill tape by adopting the processing sequence determined in the S2-S5 corresponding to the S1;
and S7, completing the drilling process of the L-shaped slotted hole.
2. The method of claim 1, wherein in the step of S6, the direction of the cutter set in the drilling parameters is clockwise rotation.
3. The method of claim 2, wherein if it is determined that the first quadrant is determined in the step S1, the tool path for fabricating the drill tape in the step S6 is: feeding from one end of the longitudinal slot far away from the original point to finish the longitudinal slot, and then feeding from the original point to the X-axis forward direction to finish the transverse slot.
4. The method of claim 2, wherein if it is determined that the second quadrant is determined in the step S1, the tool path for fabricating the drill tape in the step S6 is: feeding from one end of the transverse slot far away from the original point to finish the transverse slot, and then feeding from the original point to the Y-axis forward direction to finish the longitudinal slot.
5. The method of claim 2, wherein if it is determined that the third quadrant is determined in the step S1, the tool path for fabricating the drill tape in the step S6 is: feeding from one end of the longitudinal slot far away from the original point to finish the longitudinal slot, and then feeding from the original point to the negative direction of the X axis to finish the transverse slot.
6. The method of claim 2, wherein if it is determined that the fourth quadrant is determined in the step S1, the tool path for fabricating the drill strip in the step S6 is: feeding from one end of the transverse slot far away from the original point to finish the transverse slot, and then feeding from the original point to the Y-axis to finish the longitudinal slot.
7. A PCB-based L-shaped slot hole machining method according to claims 1-6, wherein in the step S6, the cutter path for manufacturing the drill strip is as follows: and carrying out a slotting process and then carrying out a slot expanding process on each slot hole.
8. A PCB-based L-shaped slot machining method as in claim 7, wherein the diameter of the slotting cutter is 1.1 mm.
9. A PCB-based L-shaped slot hole machining method as in claim 7, wherein the diameter of the slot expanding cutter is 1.3 mm.
10. A PCB-based L-shaped slot hole machining method as defined in claim 7, wherein the cutter path for manufacturing the drill strip is as follows: after the grooving process and the slot expanding process of the transverse slot hole/the longitudinal slot hole of the L-shaped slot hole are finished to obtain a complete slot hole, the processing process of the longitudinal slot hole/the transverse slot hole is carried out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911248317.6A CN111010802B (en) | 2019-12-09 | 2019-12-09 | L-shaped groove hole machining method based on PCB |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911248317.6A CN111010802B (en) | 2019-12-09 | 2019-12-09 | L-shaped groove hole machining method based on PCB |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111010802A true CN111010802A (en) | 2020-04-14 |
| CN111010802B CN111010802B (en) | 2021-09-21 |
Family
ID=70114093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911248317.6A Active CN111010802B (en) | 2019-12-09 | 2019-12-09 | L-shaped groove hole machining method based on PCB |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111010802B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112333920A (en) * | 2020-11-09 | 2021-02-05 | 奥士康科技股份有限公司 | Method for solving burrs of intersecting grooves |
| CN112976144A (en) * | 2021-02-24 | 2021-06-18 | 奥士康科技股份有限公司 | Method for eliminating burrs at corners of L-shaped irregular slotted holes |
| CN113473711A (en) * | 2021-05-06 | 2021-10-01 | 江门崇达电路技术有限公司 | Method for removing copper wires in hole of L-shaped groove of PCB |
| CN114505900A (en) * | 2022-04-18 | 2022-05-17 | 惠州威尔高电子有限公司 | PCB-based U-shaped groove processing method, electronic equipment and storage medium |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106385766A (en) * | 2016-11-02 | 2017-02-08 | 深圳市深联电路有限公司 | PCB special-shaped hole making method for removing burrs |
| CN107160098A (en) * | 2016-03-08 | 2017-09-15 | 深圳光启高等理工研究院 | Hole forming method and cable fixing piece |
| CN107820365A (en) * | 2017-10-19 | 2018-03-20 | 梅州市志浩电子科技有限公司 | A kind of PCB processing method and PCB |
| CN108650791A (en) * | 2018-04-11 | 2018-10-12 | 大连崇达电路有限公司 | The processing method of square groove or special-shaped groove of the knuckle radius less than 0.30mm in printed wiring board |
| CN108770209A (en) * | 2018-07-10 | 2018-11-06 | 江西旭昇电子有限公司 | The forming method of printed wiring board profiled holes |
| CN109926798A (en) * | 2019-03-18 | 2019-06-25 | 昆山苏杭电路板有限公司 | The short slot processing method of the different conventional shape of L-type |
| CN110267438A (en) * | 2019-06-28 | 2019-09-20 | 奥士康精密电路（惠州）有限公司 | A kind of processing method improving abnormity intersection hole |
-
2019
- 2019-12-09 CN CN201911248317.6A patent/CN111010802B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107160098A (en) * | 2016-03-08 | 2017-09-15 | 深圳光启高等理工研究院 | Hole forming method and cable fixing piece |
| CN106385766A (en) * | 2016-11-02 | 2017-02-08 | 深圳市深联电路有限公司 | PCB special-shaped hole making method for removing burrs |
| CN107820365A (en) * | 2017-10-19 | 2018-03-20 | 梅州市志浩电子科技有限公司 | A kind of PCB processing method and PCB |
| CN108650791A (en) * | 2018-04-11 | 2018-10-12 | 大连崇达电路有限公司 | The processing method of square groove or special-shaped groove of the knuckle radius less than 0.30mm in printed wiring board |
| CN108770209A (en) * | 2018-07-10 | 2018-11-06 | 江西旭昇电子有限公司 | The forming method of printed wiring board profiled holes |
| CN109926798A (en) * | 2019-03-18 | 2019-06-25 | 昆山苏杭电路板有限公司 | The short slot processing method of the different conventional shape of L-type |
| CN110267438A (en) * | 2019-06-28 | 2019-09-20 | 奥士康精密电路（惠州）有限公司 | A kind of processing method improving abnormity intersection hole |
Non-Patent Citations (1)
| Title |
|---|
| 王睿: "《数控加工工艺编制与实施》", 31 July 2014 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112333920A (en) * | 2020-11-09 | 2021-02-05 | 奥士康科技股份有限公司 | Method for solving burrs of intersecting grooves |
| CN112976144A (en) * | 2021-02-24 | 2021-06-18 | 奥士康科技股份有限公司 | Method for eliminating burrs at corners of L-shaped irregular slotted holes |
| CN113473711A (en) * | 2021-05-06 | 2021-10-01 | 江门崇达电路技术有限公司 | Method for removing copper wires in hole of L-shaped groove of PCB |
| CN114505900A (en) * | 2022-04-18 | 2022-05-17 | 惠州威尔高电子有限公司 | PCB-based U-shaped groove processing method, electronic equipment and storage medium |
| CN114505900B (en) * | 2022-04-18 | 2022-11-08 | 惠州威尔高电子有限公司 | PCB-based U-shaped groove processing method, electronic equipment and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111010802B (en) | 2021-09-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111010802B (en) | L-shaped groove hole machining method based on PCB | |
| CN112040652B (en) | Forming method for improving burrs of PTH half holes | |
| CN106961798B (en) | A kind of deep method of PCB aperture processing control | |
| CN102223763B (en) | Manufacturing method of connecting sheet circuit board | |
| CN106211541B (en) | A kind of positioning datum point and method improving circuit board cutting accuracy | |
| CN109807477B (en) | Composite processing method for PCB hole | |
| CN105792545B (en) | Pcb board half bore moulding process | |
| CN112752437B (en) | Forming method of metallized semi-hole and PCB | |
| CN105491797A (en) | Processing method for short slot hole of printed circuit board | |
| CN107820365B (en) | PCB processing method and PCB | |
| CN205213147U (en) | PTH right angle square groove improves structure | |
| JP4293466B2 (en) | Outline processing method | |
| CN110418505A (en) | A kind of precision PCB blank plate and its processing molding method | |
| CN213152457U (en) | FPC board with small slotted hole | |
| CN108901135A (en) | A kind of production method of non-metallic macropore | |
| CN111182731B (en) | Tree core groove processing method and printed circuit board | |
| CN109514200B (en) | Method for manufacturing nonlinear arc-shaped empennage | |
| CN111343792A (en) | Machining method of multi-angle micro square groove | |
| CN112512219A (en) | Copper-containing half groove machining method for PCB | |
| CN111093329B (en) | Small-size stepped PCB forming method | |
| CN106102352B (en) | A method of solving non-symmetrical line slab warping | |
| CN110868805B (en) | Manufacturing process of circuit board with three-dimensional pattern | |
| CN204200788U (en) | Gong plate structure | |
| CN113784512B (en) | Method for manufacturing semi-metallized hole of circuit board | |
| CN213426554U (en) | PCB board with flange connection structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 510730 No. 22, Ying Ying Road, Guangzhou Free Trade Zone, Guangzhou, Guangdong Applicant after: Guangzhou Guanghe Technology Co., Ltd Address before: 510730 No. 22, Ying Ying Road, Guangzhou Free Trade Zone, Guangzhou, Guangdong Applicant before: DELTON TECHNOLOGY (GUANGZHOU) Inc. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |