CN217343720U - Slotting tool with double edges and double grooves - Google Patents
Slotting tool with double edges and double grooves Download PDFInfo
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- CN217343720U CN217343720U CN202220210512.0U CN202220210512U CN217343720U CN 217343720 U CN217343720 U CN 217343720U CN 202220210512 U CN202220210512 U CN 202220210512U CN 217343720 U CN217343720 U CN 217343720U
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model provides a double-edged double-flute slotting cutter, the slotting cutter comprises a drill rod, the tail part of the drill rod is provided with a drill handle, the head part of the drill rod is provided with two main cutting edges, a first cross edge is formed between the two main cutting edges, the drill rod is provided with a spiral chip groove which is in one-to-one correspondence with the main cutting edges, the spiral chip groove is internally provided with a spiral chip breaker and a spiral core breaker, two spiral edges of the spiral chip breaker and the spiral core breaker are chip breaker, one end of the spiral chip breaker is positioned on the main cutting edges, and the other end extends spirally along the axial direction of the drill rod; one end of the spiral core breaking groove is positioned at the end part of the first chisel edge, and the other end of the spiral core breaking groove extends spirally along the axial direction of the drill rod. The spiral chip breaker groove and the spiral core breaking groove are arranged in the spiral chip breaker groove, so that a plurality of chip breaking edges are formed, the capacity of the spiral chip breaker groove is enlarged, and the discharge of chips is facilitated as soon as possible; the arrangement of the spiral core breaking groove is also beneficial to improving the precision of hole positions.
Description
Technical Field
The utility model relates to a slotting tool processing technology field especially indicates a slotting tool of twolip double flute.
Background
The rigidity that the slotted hole required the groove sword is good, otherwise the slotted hole that drills out can warp, and the core thickness of groove sword is bigger then the rigidity of groove sword is better, but the core thickness is bigger, and the chip groove space is smaller and hole site precision can descend, and the bits that drills out simultaneously are banded also can twine on the groove drill edge portion seriously influence the pore wall quality and lead to the panel to scrap.
CN266765Y discloses a multi-purpose twist drill, in which a helical drill edge is formed on the front section side wall of the drill rod, a W-shaped top surface is formed on the top surface of the drill, and a chip breaking table is formed by a protruded ridge on the non-cutting edge groove surface on the front section side wall of the drill rod. The twist drill diameter is great, and workable if be used for this twist drill structure to prepare little brill, has following problem: 1. the W-shaped top surface and the chip breaking table of the ridge are difficult to process due to the small diameter of the micro drill; 2. the hole site precision is lower when the PCB board is drilled on the W-shaped top surface; 3. the chip breaking table only forms a chip breaking edge, so that cutting waste wires are long when the micro drill drills, and are easy to wind on a drill rod, and the drilling quality is influenced; meanwhile, the chip breaking table with the convex edges occupies the space of the chip discharge groove, and is not beneficial to quick discharge of chips.
CN20504920U discloses a large chip breaker drill, in which the chip breaker is arranged on the cutting end, because the diameter of the cutting end of the micro drill is usually small, the processing difficulty of the chip breaker is large, and if the cutting end needs to be repaired due to abrasion, the chip breaker usually needs to be re-processed. In addition, the conventional chip breaker is mostly along a linear chip breaker, and the length of the chip breaker is easily influenced by the pitch of the spiral chip breaker, so that the chip breaker is short.
SUMMERY OF THE UTILITY MODEL
The utility model provides a double-blade double-groove slotting tool, which forms a plurality of chip breaking blades through the spiral chip breaking grooves and the spiral core breaking grooves in the spiral chip removing grooves, simultaneously enlarges the capacity of the spiral chip removing grooves and is beneficial to discharging chips as soon as possible; the arrangement of the spiral core breaking groove is also beneficial to improving the precision of hole positions.
The technical scheme of the utility model is realized like this: the utility model provides a groove sword of twolip double flute, includes the drilling rod, and the afterbody of drilling rod is provided with the drill handle, and the head of drilling rod is provided with two main cutting edges, is provided with the spiral chip groove that corresponds with main cutting edge one-to-one on the drilling rod, is provided with spiral chip breaker in the spiral chip breaker, and two spiral limits of spiral chip breaker are the chip breaker, and the one end of spiral chip breaker is located main cutting edge, makes the main cutting edge break, and the other end of spiral chip breaker extends along the axial spiral of drilling rod.
Furthermore, a first chisel edge is formed between the two main cutting edges, a spiral core breaking groove is also formed in the spiral chip groove, and both spiral edges of the spiral core breaking groove are chip breaking edges; one end of the spiral core breaking groove is located at the end of the first chisel edge, so that the first chisel edge is disconnected from the main cutting edge, and the other end of the spiral core breaking groove spirally extends along the axial direction of the drill rod.
Furthermore, a secondary cutting edge is arranged on the rear side of the main cutting edge, a second chisel edge is arranged between the main cutting edge and the secondary cutting edge, and the second chisel edge is positioned on one side, away from the first chisel edge, of the spiral core breaking groove.
The utility model has the advantages that:
the utility model discloses the slotting tool of twolip double flute, main cutting edge are through the disconnection of spiral chip breaker, and main cutting edge, first chisel edge and second chisel edge are through the disconnection of spiral core breaker groove, can reduce the width of silk waste, make the silk waste narrow, are favorable to the long and thin silk waste under the cutting to get into spiral chip breaker groove through spiral chip breaker groove and core breaker groove fast and discharge, and spiral chip breaker groove and spiral core breaker groove set up in spiral chip breaker groove, and the intensity influence to the microbit is limited, can satisfy the requirement of multilayer PCB board drilling.
In a spiral chip groove of the utility model, 4 chip breaking blades which are spiral along the axial direction of the drill rod are formed by the spiral chip breaking groove and the spiral core breaking groove, which is beneficial to cutting waste wires cut by the micro drill into chips as soon as possible, avoiding the waste wires from winding on the drill rod, influencing the drilling quality, reducing the flash and other problems and avoiding the rough hole wall; the spiral core breaking groove is formed in the spiral chip groove, so that the rigidity of the micro drill can be ensured, the core thickness is reduced, and the precision of hole positions is improved.
The spiral chip breaker groove and the spiral chip breaker groove of the utility model further enlarge the capacity of the spiral chip breaker groove, and are beneficial to discharging the chips as soon as possible; the spiral chip breaker groove and the spiral core breaker groove are arranged in an extending mode along the spiral chip breaker groove and are not limited by a thread angle of the spiral chip breaker groove, when the head of the drill rod is abraded to repair the cutting edge, the spiral chip breaker groove and the spiral core breaker groove do not need to be additionally machined, the spiral chip breaker groove and the spiral core breaker groove can still work continuously, and the service life of the micro drill is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the slot cutter of the present invention;
FIG. 2 is a schematic view of the end of the drill rod;
fig. 3 is a structural schematic diagram of a spiral chip breaker.
The drill rod comprises a drill rod 1, a drill handle 2, a spiral chip groove 3, a main cutting edge 4, an auxiliary cutting edge 5, a spiral chip breaking groove 6, a first chisel edge 7, a spiral core breaking groove 8, a second chisel edge 9 and a chip breaking edge 10.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.
As shown in fig. 1-3, a double-edge double-groove slotting cutter comprises a drill rod 1, wherein the head of the drill rod 1 is provided with two main cutting edges 4, spiral chip-discharging grooves 3 corresponding to the main cutting edges 4 one by one are formed in the drill rod 1, spiral chip-breaking grooves 6 and spiral core-breaking grooves 8 are formed in the spiral chip-discharging grooves 3, and two spiral edges of the spiral chip-breaking grooves 6 and the spiral core-breaking grooves 8 are chip-breaking edges 10. As shown in fig. 2 and 3, the spiral edge is the joint of the spiral chip breaker groove 6 or the spiral core breaker groove 8 and the spiral chip discharge groove 3. One end of the spiral chip groove 3 is positioned on the main cutting edge 4 to break the main cutting edge 4 into two parts, and the other end extends spirally along the axial direction of the drill rod 1.
Optimally, a first chisel edge 7 is formed between the two main cutting edges 4, a spiral core breaking groove 8 is further formed in the spiral chip removing groove 3, and two spiral edges of the spiral core breaking groove 8 are chip breaking edges 10. One end of the spiral core breaking groove 8 is positioned at the end of the first chisel edge 7 to break the first chisel edge 7 and the main cutting edge 4, and the other end extends spirally along the axial direction of the drill rod 1.
The slotting cutter with double edges and double grooves can ensure the rigidity of the slotting cutter and reduce the core thickness by arranging the spiral core breaking groove 8, thereby being beneficial to improving the precision of hole positions; in one spiral chip groove 3, 4 chip breaking blades which are spiral along the axial direction of the drill rod 1 are formed by the spiral chip breaking groove 6 and the spiral core breaking groove 8, so that waste wires cut by the groove cutter can be cut into chips as soon as possible, and the influence on the drilling quality caused by the winding of the waste wires on the drill rod 1 is avoided; and the spiral chip breaker groove 6 and the spiral chip breaker groove 8 further enlarge the capacity of the spiral chip breaker groove 3, and are beneficial to discharging chips as soon as possible.
The lengths of the spiral chip breaker groove 6 and the spiral core breaker groove 8 can be set according to requirements, can be consistent with the length of the spiral chip breaker groove 3, and can also be shorter than the length of the spiral chip breaker groove 3. The spiral chip breaker groove 6 and the spiral core breaker groove 8 extend along the spiral chip breaker groove 3 and are not limited by a thread angle of the spiral chip breaker groove 3 any more, when the end part of the drill rod 1 is abraded and repaired, the spiral chip breaker groove 6 and the spiral core breaker groove 8 do not need to be additionally processed, and the service life of the repeated use of the slotting tool is prolonged.
Optimally, the rear side of the main cutting edge 4 is provided with the secondary cutting edge 5, a second chisel edge 9 is arranged between the main cutting edge 4 and the secondary cutting edge 5, and the second chisel edge 9 is positioned on one side of the spiral core breaking groove 8 far away from the first chisel edge 7, so that the core thickness is further reduced.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The utility model provides a slotting tool of twolip double flute, includes the drilling rod, and the afterbody of drilling rod is provided with the drillstock, its characterized in that: the drill rod is provided with two main cutting edges at the head part, spiral chip grooves corresponding to the main cutting edges one by one are formed in the drill rod, spiral chip breaking grooves are formed in the spiral chip grooves, the two spiral edges of each spiral chip breaking groove are chip breaking edges, one ends of the spiral chip breaking grooves are located on the main cutting edges, the main cutting edges are broken, and the other ends of the spiral chip breaking grooves extend spirally along the axial direction of the drill rod.
2. A double-edged double-fluted grooving tool as set forth in claim 1, wherein: a first chisel edge is formed between the two main cutting edges, a spiral core breaking groove is also formed in the spiral chip groove, and two spiral edges of the spiral core breaking groove are both chip breaking edges; one end of the spiral core breaking groove is located at the end of the first chisel edge, so that the first chisel edge is disconnected from the main cutting edge, and the other end of the spiral core breaking groove spirally extends along the axial direction of the drill rod.
3. A double-edged double-fluted grooving tool as claimed in claim 1 or 2, wherein: the rear side of the main cutting edge is provided with an auxiliary cutting edge, a second chisel edge is arranged between the main cutting edge and the auxiliary cutting edge, and the second chisel edge is positioned on one side, away from the first chisel edge, of the spiral core breaking groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220210512.0U CN217343720U (en) | 2022-01-24 | 2022-01-24 | Slotting tool with double edges and double grooves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220210512.0U CN217343720U (en) | 2022-01-24 | 2022-01-24 | Slotting tool with double edges and double grooves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217343720U true CN217343720U (en) | 2022-09-02 |
Family
ID=83045289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220210512.0U Active CN217343720U (en) | 2022-01-24 | 2022-01-24 | Slotting tool with double edges and double grooves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217343720U (en) |
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2022
- 2022-01-24 CN CN202220210512.0U patent/CN217343720U/en active Active
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