CN220612415U - Milling tool for milling holes in circuit board holes - Google Patents
Milling tool for milling holes in circuit board holes Download PDFInfo
- Publication number
- CN220612415U CN220612415U CN202322352222.7U CN202322352222U CN220612415U CN 220612415 U CN220612415 U CN 220612415U CN 202322352222 U CN202322352222 U CN 202322352222U CN 220612415 U CN220612415 U CN 220612415U
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- Prior art keywords
- milling
- cutter
- holes
- grading
- reaming
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- 238000003801 milling Methods 0.000 title claims abstract description 42
- 230000001174 ascending effect Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000005553 drilling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
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- Milling Processes (AREA)
Abstract
The utility model discloses a milling tool for milling holes in circuit board holes, which relates to the technical field of milling cutters and comprises a cutter body, wherein the bottom end of the cutter body is connected with a reaming cutter head, and a grading cutter head is arranged in the reaming cutter head in a telescopic manner; the top end of the grading cutter head is connected with an inner cutter bar, the top of the inner cutter bar is connected with the cutter body through a telescopic spring, and the telescopic spring is inserted into the top of the inner cutter bar; one side of the inner cutter bar is fixedly connected with a limiting rod, and the limiting rod realizes graded limiting in the clamping groove. According to the utility model, the grading tool bit is arranged in the reaming tool bit in a telescopic manner, so that the grading tool bit can mill through holes with different diameters through the telescopic manner, the utilization of the space in the tool body is realized, the use function of tools is increased, the structure is simple, the operation is convenient, compared with the existing tool replacement, the later maintenance cost is reduced, the milling accuracy of the same through hole is ensured, and the practicability is strong.
Description
Technical Field
The utility model relates to the technical field of milling cutters, in particular to a milling tool for milling holes in circuit board holes.
Background
The printed circuit board is typically made of glass fiber reinforced epoxy and coated with a layer of copper on the surface, which is then photo etched as needed to complete the circuit, and is drilled at a series of locations to connect and insert any discrete or integrated electronic components between the nodes in the circuit formed on both sides of the printed circuit board.
In a milling tool for hole milling of chinese patent document publication No. CN210059916U, the milling tool is disclosed to include a shank and a cutter body, the shank is connected with the cutter body through a bevel portion, the cutter body includes along the axial direction of the cutter body from the cutter body front end to the auxiliary section that is used for assistance in locating, the processing section that is used for milling processing and the cantilever section that is used for assistance in adjusting the processing degree of depth that sets gradually in the shank direction, the diameter of auxiliary section with the cantilever section is all less than the diameter of processing section.
The milling tool realizes the control of milling depth, but cannot realize synchronous machining of different depths and different diameters of the same through hole when drilling is performed in the same circuit board due to the installation requirements of different electronic components, and is complex in operation, inconvenient to use and low in practicality.
Disclosure of Invention
The utility model aims to solve the defects that the existing milling tool cannot realize synchronous machining of the same through hole with different depths and different diameters, is complex in operation, inconvenient to use and low in practicality, and provides a milling tool for milling holes in circuit board holes.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the milling tool for milling holes in the circuit board holes comprises a cutter body, wherein the bottom end of the cutter body is connected with a reaming cutter head, and a grading cutter head is arranged in the reaming cutter head in a telescopic manner;
the top end of the grading cutter head is connected with an inner cutter bar, the top of the inner cutter bar is connected with the cutter body through a telescopic spring, and the telescopic spring is inserted into the top of the inner cutter bar;
one side fixedly connected with gag lever post of interior cutter arbor, and the gag lever post realizes hierarchical spacing in the inside of draw-in groove.
As a further description of the above technical solution:
the clamping groove is formed in one side of the cutter body, a plurality of groups of transverse grooves limiting the limiting rod are formed in one side of the clamping groove, and the transverse grooves are perpendicular to the clamping groove.
As a further description of the above technical solution:
the cutter body coincides with the axis of reaming tool bit, and the through-hole that can hold hierarchical tool bit and go up and down is offered at the middle part of cutter body, reaming tool bit.
As a further description of the above technical solution:
the diameter of the grading tool bit is arranged in a stepped grading manner.
As a further description of the above technical solution:
the reaming tool bit is trapezoidal structure setting, and the outer wall annular spiral of reaming tool bit is provided with the blade.
In conclusion, by adopting the technical scheme, the utility model has the beneficial effects that:
according to the utility model, the grading tool bit is arranged in the reaming tool bit in a telescopic manner, so that the grading tool bit can mill through holes with different diameters through the telescopic manner, the utilization of the space in the tool body is realized, the use function of tools is increased, the structure is simple, the operation is convenient, compared with the existing tool replacement, the later maintenance cost is reduced, the milling accuracy of the same through hole is ensured, and the practicability is strong.
According to the utility model, the limiting rods are fixedly connected with the outer wall of the inner cutter bar, under the action of the clamping grooves, the inner cutter bar can drive the grading cutter heads to carry out limiting fixation of different heights, so that the grading cutter heads can conveniently extend out of different depths, under the stepped action of the grading cutter heads, the tool can carry out through hole milling work of different diameters, and the flexibility of the use of the tool is improved.
Drawings
FIG. 1 is a schematic view of a three-dimensional mounting structure of a milling tool for milling holes in a circuit board hole according to the present utility model;
FIG. 2 is a schematic side cross-sectional view of a milling tool for milling holes in a circuit board hole according to the present utility model;
FIG. 3 is a schematic diagram of the front view of the card slot of the present utility model;
FIG. 4 is a schematic view of the connection structure of the reamer head and the grading bit in the present utility model;
fig. 5 is a schematic perspective view of a grading bit according to the present utility model.
Legend description:
1. a cutter body; 2. reaming tool bit; 3. an inner cutter bar; 4. grading tool bits; 5. a telescopic spring; 6. a limit rod; 7. a clamping groove.
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. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-5, a milling tool for milling holes in circuit board holes comprises a cutter body 1, a reaming cutter head 2, an inner cutter rod 3, a grading cutter head 4, a telescopic spring 5, a limiting rod 6 and a clamping groove 7, wherein the bottom end of the cutter body 1 is connected with the reaming cutter head 2, the cutter body 1 is of a cylindrical structure, an installation groove is arranged above the cutter body 1 and is convenient to flexibly install and connect with a device, the reaming cutter head 2 is of a trapezoid structure, the outer wall of the reaming cutter head 2 is annularly provided with a cutter blade in a spiral manner, through the arrangement, the reaming cutter head 2 can rapidly ream the surface of the circuit board, the processing of a large-diameter through hole is facilitated, in addition, in order to increase the practicability of the tool, the grading cutter head 4 is telescopically arranged in the reaming cutter head 2, a user can conveniently adjust the drilling diameter through the ascending and descending of the grading cutter head 4, the practicability and the flexibility of the tool are increased, meanwhile, the central axes of the cutter body 1 and the reaming cutter head 2 are overlapped, the middle part of the cutter head 2 is provided with a through hole capable of accommodating the ascending and descending of the grading cutter head 4, and the accurate milling of the reaming cutter head 4 in the grading cutter head 2 is ensured, and the accurate and the hole milling of the reaming cutter head 4 is convenient to accurately stretched out in the grading cutter head inside the grading cutter head 2;
further, in order to realize that hierarchical tool bit 4 is at the inside nimble stable stretching out of reaming tool bit 2, be connected with interior cutter arbor 3 in the top of hierarchical tool bit 4, and be connected with cutter body 1 through telescopic spring 5 with the top of interior cutter arbor 3, the user of being convenient for drives interior cutter arbor 3 through telescopic spring 5 and removes, the lift of hierarchical tool bit 4 at the inside of reaming tool bit 2 has been realized, and consider interior cutter arbor 3 at the spacing effect when going up and down, one side fixedly connected with gag lever post 6 in interior cutter arbor 3, and gag lever post 6 realizes hierarchical spacing in the inside of draw-in groove 7, specifically, offer draw-in groove 7 in one side of cutter body 1, and set up multiunit cross slot to gag lever post 6 spacing, and cross slot and draw-in groove 7 are perpendicular to set up, then interior cutter arbor 3 can be fixed through the spacing realization of gag lever post 6 in the cross slot, the stability after hierarchical regulation has been ensured, and through seting up cross slot in one side of draw-in groove 7, then make gag lever post 6 drive interior cutter arbor 3 carry out small distance's lateral rotation, consider interior 3's rotation, with the rotation effect of inner cutter arbor 3, set up at the inside cutter arbor 3 at the inside cutter arbor 5 is at the time of draw-in groove 7, the time of setting up the telescopic spring 5 is not had guaranteed in the cutter arbor 5 and the inside cutter arbor 4 is realized at the time of setting up the telescopic spring 5, the time of setting up the expansion spring 4 is not flexible in the interior cutter arbor 4, and is realized at the side of the time of setting up at the expansion tool bit 4.
The present utility model is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present utility model and the inventive concept thereof, can be replaced or changed within the scope of the present utility model.
Claims (5)
1. Milling tool for milling holes in circuit board holes, comprising a cutter body (1), and being characterized in that: the bottom end of the cutter body (1) is connected with a reaming cutter head (2), and a grading cutter head (4) is arranged in the reaming cutter head (2) in a telescopic manner;
the top end of the grading cutter head (4) is connected with an inner cutter bar (3), the top of the inner cutter bar (3) is connected with the cutter body (1) through a telescopic spring (5), and the telescopic spring (5) is inserted into the top of the inner cutter bar (3);
one side of the inner cutter bar (3) is fixedly connected with a limiting rod (6), and the limiting rod (6) is used for realizing graded limiting in the clamping groove (7).
2. A milling tool for milling holes in a circuit board hole as defined in claim 1, wherein: the clamping groove (7) is formed in one side of the cutter body (1), a plurality of groups of transverse grooves limiting the limiting rod (6) are formed in one side of the clamping groove (7), and the transverse grooves are perpendicular to the clamping groove (7).
3. A milling tool for milling holes in a circuit board hole as defined in claim 2, wherein: the cutter body (1) is coincident with the central axis of the reaming cutter head (2), and through holes capable of accommodating the ascending and descending of the grading cutter head (4) are formed in the middle of the cutter body (1) and the middle of the reaming cutter head (2).
4. A milling tool for milling holes in a circuit board hole as defined in claim 3, wherein: the diameter of the grading tool bit (4) is graded in a step shape.
5. A milling tool for milling holes in a circuit board hole as defined in claim 3, wherein: the reaming bit (2) is arranged in a trapezoid structure, and blades are annularly and spirally arranged on the outer wall of the reaming bit (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322352222.7U CN220612415U (en) | 2023-08-31 | 2023-08-31 | Milling tool for milling holes in circuit board holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322352222.7U CN220612415U (en) | 2023-08-31 | 2023-08-31 | Milling tool for milling holes in circuit board holes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220612415U true CN220612415U (en) | 2024-03-19 |
Family
ID=90215199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322352222.7U Active CN220612415U (en) | 2023-08-31 | 2023-08-31 | Milling tool for milling holes in circuit board holes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220612415U (en) |
-
2023
- 2023-08-31 CN CN202322352222.7U patent/CN220612415U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |