CN219766885U - Reversing milling cutter for circuit board processing - Google Patents
Reversing milling cutter for circuit board processing Download PDFInfo
- Publication number
- CN219766885U CN219766885U CN202320667487.3U CN202320667487U CN219766885U CN 219766885 U CN219766885 U CN 219766885U CN 202320667487 U CN202320667487 U CN 202320667487U CN 219766885 U CN219766885 U CN 219766885U
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- Prior art keywords
- cutter
- circuit board
- milling cutter
- corn
- cutting edges
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- 238000003801 milling Methods 0.000 title claims abstract description 36
- 240000008042 Zea mays Species 0.000 claims abstract description 34
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims abstract description 34
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims abstract description 29
- 235000005822 corn Nutrition 0.000 claims abstract description 29
- 238000005245 sintering Methods 0.000 claims abstract description 19
- 238000003754 machining Methods 0.000 claims abstract description 14
- 239000000758 substrate Substances 0.000 abstract description 13
- 235000016383 Zea mays subsp huehuetenangensis Nutrition 0.000 description 5
- 235000009973 maize Nutrition 0.000 description 5
- 206010044565 Tremor Diseases 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/82—Recycling of waste of electrical or electronic equipment [WEEE]
Landscapes
- Milling Processes (AREA)
Abstract
The utility model discloses a reverse milling cutter for circuit board processing, which relates to the field of machining cutters, and aims at solving the problems of poor processing finish and inaccurate high-speed vertical processing size of the traditional circuit board substrate corn milling cutter, the scheme is that the reverse milling cutter comprises a cutter bar, and one end of the cutter bar is provided with a cutter head structure: the corn cutter comprises six spiral grooves, wherein cutting edges are formed between two adjacent groups of spiral grooves, a clearance belt is arranged at the back of each spiral cutting edge, tooth grooves are uniformly formed in three groups of cutting edges along the cutting edges of the spiral cutting edges, the cutting edges provided with the tooth grooves are corn cutting edges, and the cutting edges not provided with the tooth grooves are smooth cutting edges; the end of the tool bit structure is provided with a connecting column, a sintering tool bit is arranged between the connecting column and the tool bit structure in a sintering mode, and the corn cutting edge and the smooth cutting edge are arranged at intervals. The corn milling cutter is novel in structure, and the problem that the conventional corn milling cutter for the circuit board substrate is poor in machining finish and inaccurate in high-speed vertical machining size is effectively solved.
Description
Technical Field
The utility model relates to the field of machining tools, in particular to a reverse milling cutter for machining a circuit board.
Background
The substrate of the circuit board is generally made by laminating insulating fiber and resin glue, the whole board of the substrate is required to be cut on a numerical control engraving machine tool, and the outline modeling meeting the design requirement is cut, and the cutting processing is generally carried out by a small-diameter corn milling cutter which is an image of the machining industry;
the common small-diameter corn milling cutter on the market at present has the advantages that the cutting edges which are spirally distributed on the corn particles can leave stripe marks on the cutting surface, in addition, the bottom end of the common small-diameter corn milling cutter is not similar to the approximate cone shape of a common drill bit, but is slightly concave in the middle and slightly protruding in the edge, and the common small-diameter corn milling cutter is not special for a circuit board substrate because the corn milling cutter is designed for the purpose of not only transverse cutting, but also plane processing can be considered, so that when the cutter head part of the shape is cut into the circuit board substrate vertically at high speed, the stability is far worse than that of the common drill bit of the cone head, and defects such as cutter tremble, cutting grooves or bigger hole sizes are easily caused;
with respect to the reverse bit, the machining mill is divided into, according to the screw direction of the thread cutting edge and the working rotation direction: left-handed tangential chip removal, left-handed right-handed tangential chip removal, and most commonly right-handed tangential chip removal, the counter bit is referred to herein as a left-handed machining tool.
In summary, a corn milling cutter capable of cutting laterally and drilling holes is generally selected for the conventional circuit board substrate processing cutter, but the present utility model provides a reverse milling cutter for processing circuit boards to solve the above problems due to the disadvantages of poor processing finish and inaccurate high-speed vertical processing dimension.
Disclosure of Invention
The utility model provides a reversing milling cutter for processing a circuit board, which solves the problems of poor processing finish and inaccurate high-speed vertical processing size of the traditional corn milling cutter for the circuit board substrate.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a circuit board processing is with reversing milling cutter, includes the sword stick, the one end of sword stick is provided with the tool bit structure: the corn cutter comprises six spiral grooves, wherein cutting edges are formed between two adjacent groups of spiral grooves, a clearance belt is arranged at the back of each spiral cutting edge, tooth grooves are uniformly formed in three groups of cutting edges along the cutting edges of the spiral cutting edges, the cutting edges provided with the tooth grooves are corn cutting edges, and the cutting edges not provided with the tooth grooves are smooth cutting edges;
the end of the tool bit structure is provided with a connecting column, and a sintering tool bit is arranged between the connecting column and the tool bit structure in a sintering way.
Preferably, the corn blade and the smooth blade are arranged at intervals.
Preferably, the cross-section profile of the spiral groove is U-shaped.
Preferably, the circumferential wall of the connecting column is provided with an annular groove for preventing the sintering tool bit from falling off, and the section of the sintering tool bit is semi-elliptic.
Preferably, the top of the cutter bar is provided with a screw rod, the side wall of the cutter bar is provided with flat grooves for clamping the wrench, and the flat grooves are distributed in four groups in an annular array with respect to the cutter bar.
Preferably, the diameter of the cutter bar is 5mm, the effective acting diameter of the cutter head structure is 3mm, the minimum diameter of the cutter head structure is 2mm, the maximum diameter of the sintering cutter head is 2mm, the diameter of the screw rod is 4mm, and the conical clearance inclined plane is 45 degrees.
The beneficial effects of the utility model are as follows:
1. the milling cutter combines the structural advantages of a common milling cutter and a corn milling cutter, wherein tooth grooves are uniformly formed in three groups of blades along the cutting edges of the three groups of blades to form corn blades, the corn blades are arranged at intervals between the corn blades and the three groups of smooth blades, chip removal is enhanced through the corn blades, a circuit board substrate is rapidly and transversely cut, a cutting surface is scraped through the smooth blades, scratches on the cutting surface are rapidly trimmed to the corn blades, and the quality of the cutting surface of the circuit board substrate is improved.
2. The end of this tool bit structure is provided with the spliced pole, sets up the sintering tool bit through the sintering between spliced pole and the tool bit structure, can sinter the sintering tool bit of different shapes according to actual processing demand, grinds through circuit board base plate fast through the high-speed rotation of sintering tool bit to supplementary stable cutter arbor avoids cutter arbor swing tremble, makes maize cutting edge and smooth cutting edge keep stable when cutting into circuit board base plate.
In conclusion, the problem that the conventional corn milling cutter for the circuit board substrate has poor machining finish and inaccurate high-speed vertical machining size is effectively solved.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic illustration of the structure of the present utility model in partial cross-section.
Fig. 3 is an enlarged view of the structure of fig. 2 a according to the present utility model.
Fig. 4 is a schematic structural view of a cutter head structure according to the present utility model.
Fig. 5 is a cross-sectional view of the structure of the tool bit structure of the present utility model.
Fig. 6 is a schematic structural view of embodiment 2 of the present utility model.
Reference numerals in the drawings: 1. a knife bar; 101. a spiral groove; 102. smoothing the blade; 103. a gap belt; 104. tooth slots; 105. conical clearance; 106. a connecting column; 107. a flat groove; 2. sintering the cutter head; 3. and a screw rod.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Example 1
Referring to fig. 1 to 5, a reverse milling cutter for machining a circuit board comprises a cutter bar 1, wherein one end of the cutter bar 1 is provided with a cutter head structure: the spiral groove forming machine comprises six spiral grooves 101, wherein the cross section outline of each spiral groove 101 is U-shaped, cutting edges are formed between two adjacent groups of spiral grooves 101, and a clearance belt 103 is arranged at the back of each spiral cutting edge;
the milling cutter reference dimension: the diameter of the cutter bar 1 is 5mm, the effective acting diameter of the cutter head structure is 3mm, the minimum diameter of the cutter head structure is 2mm, the maximum diameter of the sintered cutter head 2 is 2mm, the diameter of the screw rod 3 is 4mm, and the conical clearance 105 inclined plane is 45 degrees.
The prop solves the working principle that the existing corn milling cutter for the circuit board substrate has poor machining finish and inaccurate high-speed vertical machining size:
firstly, this milling cutter has combined the structure advantage of ordinary milling cutter and maize milling cutter, wherein three group's cutting edges have evenly offered tooth's socket 104 along its blade, and the cutting edge of having offered tooth's socket 104 sets up to maize cutting edge, and the cutting edge of not having offered tooth's socket 104 sets up to smooth cutting edge 102, is the interval setting between smooth cutting edge 102, strengthens chip removal through maize cutting edge, the quick transverse cutting circuit board base plate, scrapes the cutting plane through smooth cutting edge 102, causes the cutting plane mar to repair fast to maize cutting edge, improves the cutting plane quality of circuit board base plate.
Referring to fig. 3 and 4, the end of the cutter head structure is provided with a connecting column 106, a sintering cutter head 2 is arranged between the connecting column 106 and the cutter head structure in a sintering manner, an annular groove is formed in the peripheral wall of the connecting column 106 to prevent the sintering cutter head 2 from falling off, the section of the sintering cutter head 2 is semi-elliptical, but not limited to the shape, the shape such as a cone, a frustum, a hemisphere and the like can be rapidly ground through the high-speed rotation of the sintering cutter head 2 according to actual processing requirements, and a stable cutter bar is assisted to prevent the cutter bar from swinging and trembling, so that the corn cutting edge and the smooth cutting edge 102 are kept stable when cutting into the circuit board substrate.
Example 2
Referring to fig. 6, unlike embodiment 1, the top end of the cutter bar 1 is provided with a screw rod 3, and the side wall of the cutter bar 1 is provided with a flat groove 107 for clamping a wrench, the flat groove 107 is distributed in four groups in a ring array with respect to the cutter bar 1, so that the milling cutter becomes a disposable cutter, and is in threaded connection with the tail end of the spindle of the numerical control machine through the screw rod 3, and when the milling cutter is worn, the flat groove 107 can be clamped by the wrench to rotate for removing and replacing a new cutter.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
1. The utility model provides a reverse milling cutter for circuit board processing, includes tool bar (1) and toper keep away sky (105), its characterized in that, the one end of tool bar (1) is provided with tool bit structure: the corn cutter comprises six spiral grooves (101), blades are formed between two adjacent groups of spiral grooves (101), a clearance band (103) is arranged at the edge back of each spiral blade, tooth grooves (104) are uniformly formed in three groups of blades along the edges of the three groups of blades, the blades provided with the tooth grooves (104) are corn blades, and the blades not provided with the tooth grooves (104) are smooth blades (102);
the tail end of the tool bit structure is provided with a connecting column (106), and a sintering tool bit (2) is arranged between the connecting column (106) and the tool bit structure in a sintering mode.
2. The reverse milling cutter for circuit board processing according to claim 1, wherein the corn blade and the smooth blade (102) are arranged at intervals.
3. The reverse milling cutter for circuit board processing according to claim 1, wherein the cross-sectional profile of the spiral groove (101) is provided in a U-shape.
4. The reverse milling cutter for circuit board processing according to claim 1, wherein the circumferential wall of the connecting post (106) is provided with an annular groove for preventing the sintered cutter head (2) from falling off, and the sintered cutter head (2) is semi-elliptical in cross section.
5. The reverse milling cutter for circuit board processing according to claim 1, wherein a screw rod (3) is arranged at the top end of the cutter bar (1), flat grooves (107) for clamping a wrench are formed in the side wall of the cutter bar (1), and the flat grooves (107) are distributed in four groups in an annular array with respect to the cutter bar (1).
6. The reverse milling cutter for machining a circuit board according to claim 5, wherein the diameter of the cutter bar (1) is 5mm, the effective acting diameter of the cutter head structure is 3mm, the minimum diameter of the cutter head structure is 2mm, the maximum diameter of the sintered cutter head (2) is 2mm, the diameter of the screw rod (3) is 4mm, and the inclined plane of the conical clearance (105) is 45 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320667487.3U CN219766885U (en) | 2023-03-30 | 2023-03-30 | Reversing milling cutter for circuit board processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320667487.3U CN219766885U (en) | 2023-03-30 | 2023-03-30 | Reversing milling cutter for circuit board processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219766885U true CN219766885U (en) | 2023-09-29 |
Family
ID=88131998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320667487.3U Active CN219766885U (en) | 2023-03-30 | 2023-03-30 | Reversing milling cutter for circuit board processing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219766885U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117464083A (en) * | 2023-12-27 | 2024-01-30 | 酷佧切削技术(四川)有限公司 | Intelligent measurement and control system, method and storage medium for automatic cutting of dry-cutting cold saw |
-
2023
- 2023-03-30 CN CN202320667487.3U patent/CN219766885U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117464083A (en) * | 2023-12-27 | 2024-01-30 | 酷佧切削技术(四川)有限公司 | Intelligent measurement and control system, method and storage medium for automatic cutting of dry-cutting cold saw |
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