CN115568101A - PCB processing method and milling machine workbench used by same - Google Patents
PCB processing method and milling machine workbench used by same Download PDFInfo
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- CN115568101A CN115568101A CN202211358585.5A CN202211358585A CN115568101A CN 115568101 A CN115568101 A CN 115568101A CN 202211358585 A CN202211358585 A CN 202211358585A CN 115568101 A CN115568101 A CN 115568101A
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- 238000003801 milling Methods 0.000 title claims abstract description 36
- 238000003672 processing method Methods 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 claims abstract description 16
- 238000005520 cutting process Methods 0.000 claims abstract description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 30
- 229910052802 copper Inorganic materials 0.000 claims description 30
- 239000010949 copper Substances 0.000 claims description 30
- 238000009713 electroplating Methods 0.000 claims description 15
- 238000003825 pressing Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 10
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 8
- 229910052737 gold Inorganic materials 0.000 claims description 8
- 239000010931 gold Substances 0.000 claims description 8
- 238000005553 drilling Methods 0.000 claims description 6
- 238000012360 testing method Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 238000004381 surface treatment Methods 0.000 claims description 5
- 238000005530 etching Methods 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 3
- 238000009461 vacuum packaging Methods 0.000 claims description 3
- 229910000679 solder Inorganic materials 0.000 claims description 2
- 238000012545 processing Methods 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 4
- 238000007654 immersion Methods 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- H05K3/0052—Depaneling, i.e. dividing a panel into circuit boards; Working of the edges of circuit boards
-
- 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
- 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
- B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
-
- 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
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09145—Edge details
- H05K2201/09154—Bevelled, chamferred or tapered edge
-
- 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
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09145—Edge details
- H05K2201/09163—Slotted edge
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Milling Processes (AREA)
Abstract
The invention provides a PCB processing method and a milling machine workbench used by the same, the processing method is novel, V-shaped grooves are cut at the bevel edge parts of preset golden fingers, and the groove walls of the V-shaped grooves after being broken off are used as bevel edges, so that the flow steps can be reduced, and the production efficiency can be improved; the milling machine workbench used in a matched mode is simple in structure, has the effects of inclined swinging and rotation, can meet different processing placing angles and cutting orientations, enlarges the processing requirement range and improves the applicability.
Description
Technical Field
The invention relates to the field of PCB processing, in particular to a PCB processing method and a milling machine workbench used by the PCB processing method.
Background
The conventional method for manufacturing the bevel edge of the PCB mainly comprises the steps of manufacturing a normal V-CUT (V-shaped groove) of a board, then separating a large PCB into small boards with the size required by a customer through a routing machine, and conducting bevel edge processing on the outer edge of the PCB in a common mode by using a special beveling machine to conduct bevel edge processing on the outer edge of a single PCB in order to enable the PCB to be conveniently wiped into a clamping groove during installation.
Disclosure of Invention
In order to overcome the defects of the prior art, the technical problem to be solved by the invention is to provide a PCB processing method and a milling machine workbench used by the PCB processing method, wherein the processing method is novel, the flow steps can be reduced, and the production efficiency is improved; the milling machine workbench used in a matched manner is simple in structure, different machining and placing angles can be met, the machining requirement range is enlarged, and the applicability is improved.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a PCB processing method, which is characterized in that V-shaped grooves are cut at the bevel edge parts of preset golden fingers, and the groove walls of the V-shaped grooves after being broken off are used as bevel edges.
The processing method comprises the following steps:
s1, cutting; cutting a large copper clad plate into copper clad plates with preset sizes;
s2, drilling; drilling a needed hole on the copper-clad plate;
s3, plating a copper plate; electroplating a copper layer in the drilled hole;
s4, outer layer circuits; manufacturing a circuit pattern on the copper-clad plate after the copper plate is electroplated by pattern transfer;
s5, electroplating the pattern; electroplating a copper layer in the circuit graph to thicken the copper layer to a value required by a customer;
s6, etching the outer layer; removing the unnecessary copper layer, leaving the required pattern copper layer, manufacturing a circuit pattern, and manufacturing a PCB;
s7, solder resisting; covering a layer of insulating ink on the surface of the PCB;
s8, surface treatment; a layer of protection is formed on the exposed copper surface, so that reliable conductivity and weldability are ensured;
s9, electroplating the gold finger; electroplating a layer of hard gold on the golden finger part;
s10, milling a V-shaped groove: milling a V-shaped groove in a preset position on the PCB to facilitate subsequent board splitting, wherein the slope of the groove wall of the V-shaped groove is consistent with that of a preset bevel edge;
s11, forming; routing or stamping the PCB into the size and shape required by a customer;
s12, testing; testing open circuit and short circuit of the PCB;
s13, FQC; checking whether the PCB meets the requirements;
s14, packaging; and (5) performing vacuum packaging on the qualified PCB.
Further, in the step S10, the angle of the milling cutter is 85 ° to 95 °; the placing angle of the PCB is 35-45 degrees; the angle of the bevel edge is 40-50 degrees.
The invention also provides a milling machine workbench for the PCB processing method, which comprises a supporting seat, a turntable, a supporting plate, a chuck and a first motor; the fixed disc of the rotary disc is fixedly arranged on the supporting seat, the supporting plate is fixedly arranged at the top of the rotary disc, the chuck is fixedly arranged on the top surface of the supporting plate, the supporting plate is driven by the first motor to rotate, and the base can drive the rotary disc to obliquely swing; the chuck is used for inserting and placing a PCB to be processed.
Further, the supporting seat comprises a base, a supporting plate and a second motor; first vertical plates are fixedly arranged at two ends of the bottom surface of the supporting plate, a convex block is fixedly arranged in the middle of the bottom surface of the supporting plate, second vertical plates are fixedly arranged at two ends of the top surface of the base, and first supporting rods penetrate between the two second vertical plates, the two first vertical plates and the convex block; the two ends of the top surface of the base are correspondingly provided with clamping grooves, the bottoms of the clamping grooves are arc-shaped grooves, the bottoms of the first vertical plates are arc-shaped and matched with the clamping grooves in shape, and the first vertical plates extend into the clamping grooves and abut against the groove bottoms of the clamping grooves to slide; the outer side of the convex block is of an arc-shaped structure, the central angle is larger than 180 degrees, and teeth are arranged on the outer arc surface of the convex block; the base is of a hollow structure, a through hole is formed in the top of the base corresponding to the lug, a second supporting rod is arranged on an inner rotating frame of the base, a first gear is fixedly arranged on the second supporting rod, the top of the first gear protrudes out of the base through the through hole, and the first gear is in meshing transmission with teeth of the lug;
the second motor is installed in the base, and the output shaft of second motor is fixed and is equipped with the second gear, and the second gear meshes the transmission with first gear.
Furthermore, a fixed disc of the rotary disc is fixedly arranged on the top surface of the support plate, a toothed ring is fixedly sleeved on the outer wall of a rotary disc of the rotary disc, the first motor is arranged on one side of the support plate, a third gear is fixedly arranged on an output shaft of the first motor, and the third gear is in meshing transmission with the toothed ring; the bottom surface of the toothed ring is lower than the top surface of the rotating disc, and the inner wall of the toothed ring abuts against the outer wall of the rotating disc to rotate.
Furthermore, the chuck comprises a bottom plate, a supporting strip is fixedly arranged on the top surface of the bottom plate, the supporting strip surrounds the rectangular frame-shaped outline with one open side, a pressing ring is fixedly arranged on the top of the inner side wall of the supporting strip, the pressing ring extends around the trend of the supporting strip, a clamping placement area is formed between the bottom surface of the pressing ring and the top surface of the bottom plate, and the PCB to be processed is inserted and placed in the clamping placement area; the top surface of the pressing ring is provided with a plurality of sinking grooves, the depth of each sinking groove is lower than the feed depth of the milling cutter, and the positions of the sinking grooves correspond to the positions of the preset V-shaped grooves.
The invention has the beneficial effects that:
the processing method of the PCB and the milling machine workbench used by the same provided by the invention are novel, V-shaped grooves are cut at the preset golden finger bevel edge part, the groove walls of the V-shaped grooves after being broken off are used as bevel edges, the common point of the V-shaped grooves and the bevel edges is skillfully utilized, the manufacture of the bevel edges is synchronously completed through the V-shaped groove cutting action, the subsequent single bevel edge processing is not needed, the flow steps can be reduced, and the production efficiency is improved;
the milling machine workbench used in a matched manner is simple in structure and has a rotating function, and the PCB can be swung to the required cutting orientation according to different requirements; the processing machine has the function of inclined swinging, can swing to a required processing angle according to different requirements, and can effectively enlarge the processing requirement range and improve the applicability.
Drawings
Fig. 1 is a flow chart of a PCB board processing method provided in an embodiment of the present invention;
FIG. 2 is an elevation view of a milling machine table provided in an exemplary embodiment of the present invention;
FIG. 3 is a partial cross-sectional view of a milling machine table provided in an exemplary embodiment of the present invention;
FIG. 4 is a schematic illustration of an expanded configuration of a milling machine table provided in an exemplary embodiment of the present invention;
FIG. 5 is a top view of a base provided in an exemplary embodiment of the present invention;
FIG. 6 is a top view of a chuck provided in an exemplary embodiment of the present invention;
FIG. 7 is a schematic diagram of the tilted orientation of a milling machine table provided in an embodiment of the present invention.
In the figure:
100. a supporting seat; 110. a base; 111. a second vertical plate; 112. a card slot; 113. perforating; 114. a first gear; 120. a support plate; 121. a first vertical plate; 122. a bump; 130. a second motor; 131. a second gear;
200. a turntable; 210. a toothed ring;
300. a support plate;
400. a chuck; 410. a base plate; 420. a supporting strip; 430. pressing a ring; 440. sinking a groove;
500. a first motor; 510. a third gear.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
As shown in fig. 1, in the embodiment of the present invention, a method for processing a PCB is disclosed, in which a V-shaped groove is cut at a bevel edge of a preset gold finger, and a groove wall of the broken V-shaped groove is used as a bevel edge.
More specifically, the processing method comprises the following steps:
s1, cutting; cutting a large copper clad plate into copper clad plates with preset sizes;
s2, drilling; drilling a needed hole on the copper-clad plate;
s3, plating a copper plate; electroplating a copper layer in the drilled hole;
s4, outer layer circuits; manufacturing a circuit pattern on the copper-clad plate after the copper plate is electroplated through pattern transfer;
s5, electroplating the pattern; electroplating a copper layer in the circuit graph to thicken the copper layer to a value required by a customer;
s6, etching the outer layer; removing the unnecessary copper layer, leaving the required pattern copper layer, manufacturing a circuit pattern, and manufacturing a PCB;
s7, resistance welding; covering a layer of insulating ink on the surface of the PCB;
s8, surface treatment; a layer of protection is formed on the exposed copper surface, so that reliable conductivity and weldability are ensured;
s9, electroplating the gold finger; electroplating a layer of hard gold on the golden finger part;
s10, milling a V-shaped groove: milling a V-shaped groove in a preset position on the PCB board to facilitate subsequent board splitting, wherein the inclination of the groove wall of the V-shaped groove is consistent with that of a preset bevel edge;
s11, forming; routing or stamping the PCB into the size and shape required by a customer;
s12, testing; testing open circuit and short circuit of the PCB;
s13, FQC; checking whether the PCB meets the requirements;
s14, packaging; and (5) performing vacuum packaging on the qualified PCB.
The processing method is novel, V-shaped grooves are cut at the preset golden finger bevel edge part, the groove walls of the broken V-shaped grooves are used as bevel edges, common points of the V-shaped grooves and the bevel edges are ingeniously utilized, the bevel edges are synchronously manufactured through the V-shaped groove cutting action, follow-up single bevel edge processing is not needed, the flow steps can be reduced, and therefore production efficiency is improved.
Further, in the step S10, the angle of the milling cutter is 85 ° to 95 °; the placing angle of the PCB is 35-45 degrees; the angle of the bevel edge is 40-50 degrees; carrying out corresponding matching according to different processing requirements so as to obtain the angle effect of the corresponding bevel edge; the distance from the bevel edge to the center line of the V-shaped groove is 0.15-0.25 mm, the width of the V-shaped groove is limited, normal breaking can be guaranteed, and the influence on normal circuit layout caused by too large V-shaped groove opening can be prevented.
Further, in the step S8, the surface treatment mainly adopts one of the processes of tin spraying, gold immersion, OSP, tin immersion and silver immersion, and selects a corresponding treatment mode according to the application requirements of the customer and the PCB board, and these methods are all common surface treatment modes, and the specific steps are not described again.
As shown in fig. 2 to 7, the present invention further discloses a milling machine table for a PCB processing method, comprising a supporting base 100, a turntable 200, a supporting plate 300, a chuck 400, and a first motor 500; the fixed disc of the turntable 200 is fixedly installed on the supporting seat 100, the supporting plate 300 is fixedly installed on the top of the rotating disc of the turntable 200, the chuck 400 is fixedly installed on the top surface of the supporting plate 300, the supporting plate 300 is driven by the first motor 500 to rotate, and the base can drive the turntable to obliquely swing; the chuck 400 is used for inserting and placing a PCB board to be processed.
The milling machine workbench is simple in structure and has a rotating function, and the PCB can be swung to a required cutting direction according to different requirements; the processing machine has the function of inclined swinging, can swing to a required processing angle according to different requirements, and can effectively enlarge the processing requirement range and improve the applicability.
Further, the support base 100 includes a base 110, a support plate 120, and a second motor 130; first vertical plates 121 are fixedly arranged at two ends of the bottom surface of the supporting plate 120, a convex block 122 is fixedly arranged in the middle of the bottom surface of the supporting plate 120, second vertical plates 111 are fixedly arranged at two ends of the top surface of the base 110, and first supporting rods penetrate between the two second vertical plates, the two first vertical plates and the convex block; the two ends of the top surface of the base 110 are correspondingly provided with clamping grooves 112, the bottoms of the clamping grooves are arc-shaped grooves, the bottom of the first vertical plate 121 is arc-shaped and matched with the shapes of the clamping grooves 112, and the first vertical plate extends into the clamping grooves and abuts against the bottoms of the clamping grooves to slide; forming a foundation so that the supporting plate can be rotatably arranged on the top of the base;
the outer side of the bump 122 is of an arc-shaped structure, the central angle is larger than 180 degrees, and the outer arc surface of the bump is provided with teeth; the base 110 is a hollow structure, a through hole 113 is formed in the top of the base 110 corresponding to the bump 122, a second support rod is arranged on an internal rotating frame of the base 110, a first gear 114 is fixedly arranged on the second support rod, the top of the first gear 114 protrudes out through the through hole, and the first gear 114 is in meshing transmission with teeth of the bump 122; the second motor 130 is arranged in the base, the output shaft of the second motor is fixedly provided with a second gear 131, and the second gear 131 is in meshing transmission with the first gear 114; under the multistage meshing transmission, drive the backup pad through the second motor and swing to adjust to required inclination.
Furthermore, the number of the second motors is 2, and the driving is carried out through two groups of second motors and second gears, so that the driving power is effectively enhanced; and, step motor or servo motor are selected for use to the second motor, take the outage back, can realize the auto-lock effect, make the backup pad position maintain in required angle of putting.
Further, a fixed disc of the turntable 200 is fixedly mounted on the top surface of the support plate, a toothed ring 210 is fixedly sleeved on the outer wall of the rotating disc of the turntable 200, the first motor is mounted on one side of the support plate, an output shaft of the first motor 500 is fixedly provided with a third gear 510, and the third gear 510 is in meshing transmission with the toothed ring 210; the first motor drives the rotating disc of the rotating disc to rotate, so that the chuck rotates to a required placing position, and different requirements for cutting and slotting are met; the bottom surface of the gear ring 210 is lower than the top surface of the rotating disc, the inner wall of the gear ring abuts against the outer wall of the rotating disc to rotate, the bearing part of the rotating disc can be shielded, and external dust is prevented from entering; it should be noted that the turntable is a common rotating disk structure, and can be purchased and used in the market, and the detailed structure is not described herein.
Further, step motor or servo motor are selected for use to the second motor, take the outage back, can realize the auto-lock effect, make the rolling disc maintain in required position, can't rotate to carry out accuracy, effectual milling.
Further, the chuck 400 includes a bottom plate 410, a supporting strip 420 is fixedly arranged on the top surface of the bottom plate 410, the supporting strip surrounds the rectangular frame-shaped outline with one open side, a press ring 430 is fixedly arranged on the top of the inner side wall of the supporting strip 420, the press ring extends around the trend of the supporting strip, so that a clamping placement area is formed between the bottom surface of the press ring and the top surface of the bottom plate, and the PCB board to be processed is inserted and placed in the clamping placement area; the top surface of the pressing ring 430 is provided with a plurality of sinking grooves 440, the depth of the sinking grooves is lower than the feed depth of the milling cutter, and the positions of the sinking grooves correspond to the positions of the preset V-shaped grooves;
due to the design of the supporting bars and the pressing rings, the clamping placement area is only provided with a single inlet and outlet, so that the taking and placing of the PCB are limited, the PCB is prevented from being changed in the processing process, and the processing accuracy is ensured; it should be noted that when the V-shaped groove on the opening of the PCB needs to be cut, the direction of the milling cutter needs the opening side as a starting point, so as to ensure that the end of the PCB is blocked and does not move; the design of the sunken groove is mainly used for reserving a feed interval of the milling cutter and preventing the milling cutter from colliding with the chuck.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not intended to be limited to the specific embodiments disclosed herein, but other embodiments falling within the scope of the appended claims are intended to be within the scope of the present invention.
Claims (7)
1. A PCB board processing method is characterized in that:
and cutting the V-shaped groove at the preset inclined edge part of the golden finger, and taking the groove wall of the broken V-shaped groove as an inclined edge.
2. The PCB processing method of claim 1, wherein:
the method comprises the following steps:
s1, cutting; cutting a large copper clad plate into copper clad plates with preset sizes;
s2, drilling; drilling a needed hole on the copper-clad plate;
s3, plating a copper plate; electroplating a copper layer in the drilled hole;
s4, outer layer circuits; manufacturing a circuit pattern on the copper-clad plate after the copper plate is electroplated through pattern transfer;
s5, electroplating the pattern; electroplating a copper layer in the circuit graph to thicken the copper layer to a value required by a customer;
s6, etching the outer layer; removing the unnecessary copper layer, leaving the required pattern copper layer, manufacturing a circuit pattern, and manufacturing a PCB;
s7, solder resisting; covering a layer of insulating ink on the surface of the PCB;
s8, surface treatment; a layer of protection is formed on the exposed copper surface, so that reliable conductivity and weldability are ensured;
s9, electroplating the gold finger; electroplating a layer of hard gold on the golden finger part;
s10, milling a V-shaped groove: milling a V-shaped groove in a preset position on the PCB to facilitate subsequent board splitting, wherein the slope of the groove wall of the V-shaped groove is consistent with that of a preset bevel edge;
s11, forming; routing or stamping the PCB into the size and shape required by a customer;
s12, testing; testing open circuit and short circuit of the PCB;
s13, FQC; checking whether the PCB meets the requirements;
s14, packaging; and (5) performing vacuum packaging on the qualified PCB.
3. The PCB processing method of claim 2, wherein:
in the step S10, the angle of the milling cutter is 85-95 degrees; the placing angle of the PCB is 35-45 degrees; the angle of the bevel edge is 40-50 degrees.
4. A milling machine table used for a PCB board processing method of claim 2, characterized in that:
comprises a supporting seat, a turntable, a supporting plate, a chuck and a first motor;
the fixed disc of the rotary disc is fixedly arranged on the supporting seat, the supporting plate is fixedly arranged at the top of the rotary disc, the chuck is fixedly arranged on the top surface of the supporting plate, the supporting plate is driven by the first motor to rotate, and the base can drive the rotary disc to obliquely swing;
the chuck is used for inserting and placing a PCB to be processed.
5. A milling machine table according to claim 4, wherein:
the supporting seat comprises a base, a supporting plate and a second motor;
first vertical plates are fixedly arranged at two ends of the bottom surface of the supporting plate, a convex block is fixedly arranged in the middle of the bottom surface of the supporting plate, second vertical plates are fixedly arranged at two ends of the top surface of the base, and first supporting rods penetrate between the two second vertical plates, the two first vertical plates and the convex block;
the two ends of the top surface of the base are correspondingly provided with clamping grooves, the bottoms of the clamping grooves are arc-shaped grooves, the bottoms of the first vertical plates are arc-shaped and matched with the clamping grooves in shape, and the first vertical plates extend into the clamping grooves and abut against the groove bottoms of the clamping grooves to slide;
the outer side of the convex block is of an arc-shaped structure, the central angle is larger than 180 degrees, and teeth are arranged on the outer arc surface of the convex block;
the base is of a hollow structure, a through hole is formed in the top of the base corresponding to the lug, a second supporting rod is arranged on an inner rotating frame of the base, a first gear is fixedly arranged on the second supporting rod, the top of the first gear protrudes out of the base through the through hole, and the first gear is in meshing transmission with teeth of the lug;
the second motor is installed in the base, and the output shaft of second motor is fixed and is equipped with the second gear, and the second gear meshes the transmission with first gear.
6. A milling machine table according to claim 5, wherein:
the fixed disc of the rotary disc is fixedly arranged on the top surface of the supporting plate, a toothed ring is fixedly sleeved on the outer wall of the rotary disc, the first motor is arranged on one side of the supporting plate, a third gear is fixedly arranged on an output shaft of the first motor, and the third gear is in meshing transmission with the toothed ring;
the bottom surface of the toothed ring is lower than the top surface of the rotating disc, and the inner wall of the toothed ring abuts against the outer wall of the rotating disc to rotate.
7. A milling machine table according to claim 6, wherein:
the chuck comprises a bottom plate, a supporting strip is fixedly arranged on the top surface of the bottom plate, the supporting strip surrounds the rectangular frame-shaped outline with one open side, a pressing ring is fixedly arranged on the top of the inner side wall of the supporting strip, the pressing ring extends around the trend of the supporting strip, a clamping placement area is formed between the bottom surface of the pressing ring and the top surface of the bottom plate, and a PCB to be processed is inserted into the clamping placement area;
the top surface of the pressing ring is provided with a plurality of sinking grooves, the depth of each sinking groove is lower than the feed depth of the milling cutter, and the positions of the sinking grooves correspond to the positions of the preset V-shaped grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211358585.5A CN115568101B (en) | 2022-11-01 | 2022-11-01 | PCB processing method and milling machine workbench used by same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211358585.5A CN115568101B (en) | 2022-11-01 | 2022-11-01 | PCB processing method and milling machine workbench used by same |
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| Publication Number | Publication Date |
|---|---|
| CN115568101A true CN115568101A (en) | 2023-01-03 |
| CN115568101B CN115568101B (en) | 2024-02-27 |
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| CN202211358585.5A Active CN115568101B (en) | 2022-11-01 | 2022-11-01 | PCB processing method and milling machine workbench used by same |
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| US20090020320A1 (en) * | 2007-07-16 | 2009-01-22 | Nanya Technology Corporation | Gold finger of circuit board and fabricating method thereof |
| US20110003487A1 (en) * | 2008-02-29 | 2011-01-06 | Zte Corporation | Method for reducing the fitting thrust of golden finger and pcb |
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