CN117884724A - Thread milling cutter free of bottoming hole - Google Patents
Thread milling cutter free of bottoming hole Download PDFInfo
- Publication number
- CN117884724A CN117884724A CN202410291684.9A CN202410291684A CN117884724A CN 117884724 A CN117884724 A CN 117884724A CN 202410291684 A CN202410291684 A CN 202410291684A CN 117884724 A CN117884724 A CN 117884724A
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- milling cutter
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- 238000003801 milling Methods 0.000 title claims abstract description 256
- 238000001816 cooling Methods 0.000 claims description 20
- 238000005192 partition Methods 0.000 claims description 8
- 230000006978 adaptation Effects 0.000 claims description 7
- 239000002184 metal Substances 0.000 abstract description 45
- 238000005553 drilling Methods 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract 1
- 238000005520 cutting process Methods 0.000 description 22
- 238000003860 storage Methods 0.000 description 10
- 238000012545 processing Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000036346 tooth eruption Effects 0.000 description 2
- 238000007514 turning Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
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- Milling Processes (AREA)
Abstract
The invention relates to the technical field of thread milling cutters, in particular to a bottomless hole thread milling cutter, wherein a milling head is fixedly arranged at the bottom end of the thread milling cutter, a milling assembly is inserted into the milling head, the milling assembly comprises a milling unit, and the milling unit is inserted into the milling head; through setting up milling blade, and through milling blade's arc structure, effectively prevent that metal chip from piling up in the contained angle department of milling blade and milling head, and avoid milling head and milling blade card inside the metal, through the inclined plane of connecting block, make milling blade to metal milling drilling, and reduce the resistance of milling blade to metal milling, and pull through the elasticity of spring, make spacing frame to wrap up the outside of connecting block and pull, therefore spacing frame plays spacing effect to the connecting block, improve the stability of milling blade installation inside the milling head, improve the accuracy of milling blade to metal milling drilling simultaneously.
Description
Technical Field
The invention relates to the technical field of thread milling cutters, in particular to a bottomless hole thread milling cutter.
Background
The traditional thread processing method mainly adopts a thread turning tool to turn threads or adopts a tap and a die to manually tap and sleeve. Along with the development of numerical control processing technology, particularly the appearance of a three-axis linkage numerical control processing system, a more advanced thread processing mode, namely numerical control milling of threads, is realized, compared with the traditional thread processing mode, the thread milling processing has great advantages in the aspects of processing precision and processing efficiency, and is not limited by a thread structure and the thread rotation direction during processing, for example, a thread milling cutter can process internal threads and external threads with different rotation directions. For threads which are not allowed to have a transitional buckle or tool withdrawal groove structure, the traditional turning method, the screw tap and the screw die are difficult to process, but the numerical control milling is very easy to realize. In addition, the durability of the thread milling cutter is tens of times or even tens of times of that of a screw tap, and in the process of numerical control milling of threads, the adjustment of the diameter size of the threads is extremely convenient, which is difficult to achieve by adopting the screw tap and the screw die. Due to the advantages of thread milling, the milling process is widely adopted in mass thread production in developed countries.
For example, chinese patent application publication No. CN117206606a provides a thread milling cutter, which belongs to the technical field of thread processing. The thread milling cutter comprises a cutting part and a cutting blade; wherein, at least two cutting planes are arranged on the cutting part at intervals along the axial direction of the cutting part; at least two cutting blades are arranged on each cutting plane at intervals, the tooth shapes of the cutting teeth of the cutting blades are different, and when the thread milling cutter rotates, a non-overlapping area exists between the cutting blades, so that the cutting blades can be spliced to form an overall tooth shape of a thread structure to be processed after the thread milling cutter rotates for a circle. The thread milling cutter disclosed by the invention is used for forming a complete thread structure through mutually matched machining of a plurality of cutting blades, the machining efficiency is higher, and the cutting force born by the thread milling cutter is smaller, so that the thread milling cutter can be protected, and the machining quality of the thread structure can be ensured.
In the prior art, it has been found that at least two cutting planes are arranged on the cutting portion at intervals along the axial direction thereof; at least two cutting blades are arranged on each cutting plane at intervals, the tooth shapes of the cutting teeth of the cutting blades are different, and when the thread milling cutter rotates, a non-overlapping area exists among the cutting blades, so that the cutting blades can be spliced to form an integral tooth shape of a thread structure to be processed after the thread milling cutter rotates for one circle.
In view of the above, the present invention proposes a bottomless hole thread milling cutter to solve the above-mentioned problems.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a bottomless hole thread milling cutter, which solves the technical problem that when the thread milling cutter rotates, non-overlapping areas exist among all cutting blades, and as the pressing force of a worker on metal is different every moment when the thread milling cutter rotates through equipment, the intervals among thread structures generated by all the cutting blades on the metal are different, so that the qualification rate of the thread milling cutter on the metal is reduced.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the technical scheme adopted by the invention for solving the technical problems is that a milling head is fixedly arranged at the bottom end of the thread milling cutter, a milling component is inserted into the milling head, the milling component comprises a milling unit, the milling unit is inserted into the milling head, a limiting unit is fixedly arranged at the bottom end of the milling unit, an adjusting unit is inserted into the milling head, the adjusting unit is fixedly arranged at the outer side of the limiting unit, the milling unit comprises a milling blade and a clamping block, the milling blade is inserted into the milling head, a groove is formed in the milling blade, the cross section of the groove is in a circular arc structure, the clamping block is fixedly arranged at the outer side of the milling blade, a groove matched with the clamping block is formed in the milling head, the limiting unit comprises a connecting block, the connecting block is fixedly arranged at the bottom end of the milling blade, a limiting frame is sleeved at the outer side of the connecting block and is inserted into the milling head, a telescopic rod is fixedly arranged at the outer side of the limiting frame, a spring is sleeved at the outer side of the telescopic rod, and a baffle is fixedly arranged at the other end of the telescopic rod.
Preferably, the bottom of connecting block is inclined structure, the draw-in groove with connecting block looks adaptation has been seted up to the inside of spacing frame, the both ends of spring are fixed mounting in the outside of spacing frame and baffle respectively.
Preferably, the outside of baffle is rectangular structure, the spout with baffle looks adaptation has been seted up to the inside of milling head, and spacing frame, telescopic link, spring and baffle insert the spout of seting up in the milling head inside.
Preferably, the adjusting unit comprises a thread bush, the thread bush is fixedly arranged on the outer side of the partition plate, a thread column is inserted into the thread bush, a hollow circular disc is fixedly arranged on the outer side of the thread column, a circular gear is fixedly arranged on the outer side of the thread column, and a hollow gear is inserted into the milling head.
Preferably, the threaded sleeve is positioned in a chute formed in the milling head, the threaded column is engaged with the threaded sleeve through threads, and the threaded column is inserted in the milling head.
Preferably, a rotary groove matched with the hollow circular disc is formed in the milling head, and the circular gear is meshed with the hollow gear through teeth.
Preferably, the milling unit, the limiting unit and the adjusting unit are arranged in three groups in total and distributed in an array mode by the central shaft of the milling head.
Preferably, the splash-proof assembly is arranged in the thread milling cutter, the splash-proof assembly comprises a storage chute, the storage chute is arranged in the thread outside the thread milling cutter, the direction of the storage chute is opposite to the direction of the thread outside the thread milling cutter, and the storage transverse groove is arranged in the thread milling cutter.
Preferably, the cooling component is set up in the inside of screw thread milling cutter, and the cooling component includes the radiating groove, and the radiating groove is set up the inside of screw thread milling cutter, the spread groove has been set up to the inside of screw thread milling cutter, the radiating groove is provided with five sets of and is the array with screw thread milling cutter's center pin altogether and distributes, the spread groove is provided with four sets of and is the array with screw thread milling cutter's center pin altogether and distributes, four sets of a set of the spread groove of spread groove distributes between the adjacent two sets of radiating groove of five sets of radiating grooves.
The beneficial effects of the invention are as follows:
(1) According to the invention, the milling blade is arranged, and through the arc-shaped structure of the milling blade, metal scraps are effectively prevented from accumulating at the included angle between the milling blade and the milling blade, the milling blade and the milling blade are prevented from being clamped in metal, the milling blade is used for milling and drilling the metal, the resistance of the milling blade to metal milling is reduced, and the limiting frame is used for wrapping and pulling the outer side of the connecting block through the elastic force of the spring, so that the limiting frame plays a limiting role on the connecting block, the stability of the milling blade in the milling blade is improved, and meanwhile, the accuracy of the milling blade for milling and drilling the metal is improved.
(2) According to the invention, the threaded column is arranged, and when the threaded column is meshed with the threaded sleeve through threads, the positions of the limiting frame and the connecting block are offset, so that the milling blade is conveniently taken out of the milling head, the purpose of disassembling and replacing the curled milling blade is achieved, the efficiency of disassembling and installing the milling blade is improved, and the efficiency of milling the metal milling rotating hole by the milling blade is improved.
(3) According to the invention, the containing chute is arranged, so that metal scraps of the thread milling cutter during thread milling of metal are accumulated in the containing chute and the containing transverse groove, a large amount of metal scraps are prevented from splashing, and when the thread milling cutter rotates in the opposite direction, the containing chute in the containing chute and the metal scraps in the containing transverse groove are separated from the outer side of the metal, so that the metal scraps can be cleaned conveniently.
Drawings
FIG. 1 is a schematic elevational view of the structure of the present invention;
FIG. 2 is a schematic front perspective view of the milling head and milling assembly of the present invention;
FIG. 3 is a schematic front perspective view, partially in section, of the milling head and milling assembly of the present invention;
FIG. 4 is a schematic perspective view of the spacing unit and hollow gear of the present invention;
FIG. 5 is a schematic side perspective view of the spacing unit and the adjustment unit of the present invention;
FIG. 6 is a schematic elevation view, partially in section, of the structure of the spacing unit and adjustment unit of the present invention;
FIG. 7 is a schematic front perspective view of the structure of the spacing unit and the adjusting unit of the present invention;
FIG. 8 is a schematic side view of the milling head and hollow gear of the present invention;
fig. 9 is a schematic front perspective view of the structure of the thread milling cutter and cooling assembly of the present invention.
In the figure:
1. a thread milling cutter;
2. a milling head;
3. a milling assembly;
310. a milling unit; 320. a limit unit; 330. an adjusting unit; 340. a hollow gear;
311. milling inserts; 312. a clamping block;
321. a connecting block; 322. a limit frame; 323. a telescopic rod; 324. a spring; 325. a partition plate;
331. a thread sleeve; 332. a threaded column; 333. a hollow wafer; 334. a circular gear;
4. an anti-splash assembly;
410. a storage chute; 420. a storage transverse groove;
5. a cooling component;
510. a heat sink; 520. and a connecting groove.
Detailed Description
In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 7, in the bottomless hole thread milling cutter of the invention, a milling head 2 is fixedly arranged at the bottom end of a thread milling cutter 1, and a milling component 3 is inserted into the milling head 2;
the milling assembly 3 comprises a milling unit 310, the milling unit 310 is inserted into the milling head 2, a limiting unit 320 is fixedly arranged at the bottom end of the milling unit 310, an adjusting unit 330 is inserted into the milling head 2, and the adjusting unit 330 is fixedly arranged at the outer side of the limiting unit 320;
milling unit 310 includes milling blade 311 and fixture block 312, milling blade 311 inserts the inside of establishing at milling head 2, the inside of milling blade 311 is seted up flutedly, and the cross-section of recess is arc structure, fixture block 312 fixed mounting is in the outside of milling blade 311, milling head 2's inside is seted up the recess with fixture block 312 looks adaptation, spacing unit 320 includes connecting block 321, and connecting block 321 fixed mounting is in milling blade 311's bottom, the outside cover of connecting block 321 has spacing frame 322, and spacing frame 322 inserts the inside of establishing at milling head 2, spacing frame 322's outside fixed mounting has telescopic link 323, and the outside cover of telescopic link 323 is equipped with spring 324, the other end fixed mounting of telescopic link 323 has baffle 325, the bottom of connecting block 321 is the slope structure, the draw-in groove with connecting block 321 looks adaptation is seted up to spacing frame 322 respectively in the outside of baffle 325, the outside of baffle 325 is the rectangle structure, milling head 2's inside is seted up and is with the spout of 325 looks adaptation, and spacing frame 322, telescopic link 323, spring 324 and baffle 325 insert the inside of seting up at milling head 2.
When the device is in operation, when the thread milling cutter 1 is in contact with metal through the milling head 2 and the milling component 3, the edge of the milling blade 311 collides with the metal, so that metal milling is drilled, and through the arc-shaped structure of the milling blade 311, metal scraps are effectively prevented from accumulating at the included angle between the milling blade 311 and the milling head 2, the milling head 2 and the milling blade 311 are prevented from being clamped in the metal, the milling blade 311 drives the connecting block 321 to press in the milling head 2 through the inclined plane of the connecting block 321, the connecting block 321 is inserted in the limiting frame 322 at the moment, and the limiting frame 322 wraps and pulls the outer side of the connecting block 321 through the elastic force of the spring 324, so that the limiting frame 322 plays a limiting role on the connecting block 321, meanwhile, the milling blade 311 drives the clamping block 312 to be inserted in the milling head 2, the stability of the milling blade 311 is improved in the milling head 2, and the accuracy of the milling blade 311 on a metal milling rotating hole is improved.
As shown in fig. 3 to 8, the adjusting unit 330 includes a threaded sleeve 331, the threaded sleeve 331 is fixedly mounted on the outer side of the partition plate 325, a threaded post 332 is inserted in the threaded sleeve 331, a hollow disc 333 is fixedly mounted on the outer side of the threaded post 332, a circular gear 334 is fixedly mounted on the outer side of the threaded post 332, a hollow gear 340 is inserted in the milling head 2, the threaded sleeve 331 is located in a chute formed in the milling head 2, the threaded post 332 is engaged with the threaded sleeve 331 through threads, the threaded post 332 is inserted in the milling head 2, a rotary groove matched with the hollow disc 333 is formed in the milling head 2, the circular gear 334 is engaged with the hollow gear 340 through teeth, and three groups of milling units 310, limiting units 320 and the adjusting unit 330 are arranged in an array mode and distributed on the central shaft of the milling head 2.
When the device is in operation, when the hollow gear 340 rotates in the milling head 2, the hollow gear 340 is meshed with the three groups of circular gears 334 through teeth, the three groups of circular gears 334 drive the threaded column 332 to rotate in the milling head 2, the hollow circular sheet 333 plays a limiting role on the threaded column 332, the partition plate 325 is in a rectangular structure, the hollow circular sheet 333 and the partition plate 325 are mutually matched, the threaded column 332 is stably meshed with the threaded sleeve 331 through threads, the threaded sleeve 331 drives the partition plate 325, the partition plate 325 and the limiting frame 322 to move, the limiting frame 322 is offset from the connecting block 321, and then the milling blade 311 is pulled to enable the clamping block 312 to be separated from the inside of the milling head 2, so that the milling blade 311 is pulled again for conveniently disassembling and replacing the curled milling blade 311, and therefore the efficiency of disassembling and installing the milling blade 311 is improved.
As shown in fig. 1, fig. 2 and fig. 9, the splash-preventing assembly 4 is provided in the thread milling cutter 1, the splash-preventing assembly 4 comprises a storage chute 410, the storage chute 410 is provided in the thread outside the thread milling cutter 1, the storage chute 410 is provided in the opposite direction to the thread provided in the thread outside the thread milling cutter 1, a storage transverse groove 420 is provided in the thread milling cutter 1, a cooling assembly 5 is provided in the thread milling cutter 1, the cooling assembly 5 comprises a cooling groove 510, the cooling groove 510 is provided in the thread milling cutter 1, a connecting groove 520 is provided in the thread milling cutter 1, the cooling grooves 510 are provided with five groups in total and distributed in an array manner by the central shaft of the thread milling cutter 1, the connecting grooves 520 are provided with four groups in total and distributed in an array manner by the central shaft of the thread milling cutter 1, and one group of connecting grooves 520 of the four groups of connecting grooves 520 are distributed between two adjacent groups of cooling grooves 510 of the five groups of cooling grooves 510.
When the device is used for milling and drilling metal through the thread milling cutter 1, the milling head 2 and the milling blade 311, the thread milling cutter 1 is conveniently used for milling and drilling metal through the thread cutting edge on the outer side of the thread milling cutter 1, and the direction of the opening of the containing chute 410 is opposite to the direction of the thread arranged on the outer side of the thread milling cutter 1, so that metal scraps of the thread milling cutter 1 during milling and drilling the metal are accumulated in the containing chute 410 and the containing transverse groove 420, a large amount of metal scraps are prevented from splashing, the inside of the metal needs to be overturned to leave after the thread milling cutter 1 finishes milling and drilling the metal, the metal scraps in the containing chute 410 and the containing transverse groove 420 fall off on the outer side of the metal at the moment so as to clean the metal scraps, and the contact area between the thread milling cutter 1 and the outside is increased through the heat dissipation groove 510 and the connecting groove 520 so as to conveniently cool the thread milling cutter 1, and the service life of the thread milling cutter 1 is effectively prolonged.
Working principle: the user connects the device with a power supply and then turns on a switch, through the inclined plane of the connecting block 321, the milling blade 311 drives the connecting block 321 to press the inside of the milling head 2, at the moment, the connecting block 321 is inserted into the inside of the limiting frame 322, meanwhile, the adjusting unit 330 is matched, and the limiting frame 322 wraps and pulls the outside of the connecting block 321 through the elastic force of the spring 324, meanwhile, the milling blade 311 drives the clamping block 312 to be inserted into the inside of the milling head 2, then when the electric drill drives the thread milling cutter 1 to work, the edge of the milling blade 311 collides with metal through the milling head 2 and the milling assembly 3, thereby milling the metal, metal scraps of the thread milling cutter 1 during the metal milling are accumulated in the insides of the accommodating chute 410 and the accommodating transverse groove 420, so as to avoid a great amount of metal scraps from splashing, after the thread milling cutter 1 finishes milling the threads, the metal scraps need to be turned away from the metal, at the moment, the metal scraps in the accommodating chute 410 and the accommodating transverse groove 420 fall off to the outer side of the metal, the contact area between the thread milling cutter 1 and the outside is increased through the heat dissipation groove 510 and the connecting groove 520, so that the purpose of cooling the thread milling cutter 1 is achieved, the hollow gear 340 is meshed with the three groups of circular gears 334 through teeth, the three groups of circular gears 334 drive the thread post 332 to rotate in the milling cutter head 2, the thread post 332 is stably meshed with the thread sleeve 331 through threads, the thread sleeve 331 drives the baffle 325, the baffle 325 and the limiting frame 322 to move, the limiting frame 322 and the connecting block 321 are offset, then the clamping block 312 is separated from the milling cutter head 2 by pulling the milling cutter 311, the milling cutter 311 is pulled again, for the purpose of facilitating the removal and replacement of the curled milling insert 311.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the foregoing examples, and that the foregoing description and description are merely illustrative of the principles of this invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. Exempt from to beat end hole thread milling cutter, the bottom fixed mounting of thread milling cutter (1) has milling head (2), its characterized in that still includes:
a milling assembly (3), the milling assembly (3) being inserted inside the milling head (2);
the milling assembly (3) comprises a milling unit (310), the milling unit (310) is inserted into the milling head (2), a limiting unit (320) is fixedly arranged at the bottom end of the milling unit (310), an adjusting unit (330) is inserted into the milling head (2), and the adjusting unit (330) is fixedly arranged at the outer side of the limiting unit (320);
the milling unit (310) comprises a milling blade (311) and a clamping block (312), the milling blade (311) is inserted into the milling head (2), a groove is formed in the milling blade (311), the cross section of the groove is in a circular arc structure, the clamping block (312) is fixedly arranged on the outer side of the milling blade (311), and a groove matched with the clamping block (312) is formed in the milling head (2);
spacing unit (320) are in including connecting block (321), and connecting block (321) fixed mounting is in the bottom of milling blade (311), the outside cover of connecting block (321) is equipped with spacing frame (322), and spacing frame (322) are inserted and are established in the inside of milling head (2), the outside fixed mounting of spacing frame (322) has telescopic link (323), and the outside cover of telescopic link (323) is equipped with spring (324), the other end fixed mounting of telescopic link (323) has baffle (325).
2. A bottomless hole thread mill as set forth in claim 1, wherein: the bottom of connecting block (321) is inclined structure, draw-in groove with connecting block (321) looks adaptation is seted up to the inside of spacing frame (322), the both ends of spring (324) fixed mounting is in the outside of spacing frame (322) and baffle (325) respectively.
3. A bottomless hole thread mill as set forth in claim 1, wherein: the outside of baffle (325) is rectangular structure, the spout with baffle (325) looks adaptation has been seted up to the inside of milling head (2), and limit frame (322), telescopic link (323), spring (324) and baffle (325) insert establish the spout of seting up in milling head (2) inside.
4. A bottomless hole thread mill as set forth in claim 1, wherein: the adjusting unit (330) comprises a threaded sleeve (331), the threaded sleeve (331) is fixedly arranged on the outer side of the partition plate (325), a threaded column (332) is inserted into the threaded sleeve (331), a hollow circular plate (333) is fixedly arranged on the outer side of the threaded column (332), a circular gear (334) is fixedly arranged on the outer side of the threaded column (332), and a hollow gear (340) is inserted into the milling head (2).
5. A bottomless hole thread mill as set forth in claim 4, wherein: the screw sleeve (331) is located inside a chute formed in the milling head (2), the screw column (332) is meshed with the screw sleeve (331) through threads, and the screw column (332) is inserted into the milling head (2).
6. A bottomless hole thread mill as set forth in claim 4, wherein: the milling head (2) is internally provided with a rotary groove matched with the hollow circular disc (333), and the circular gear (334) is meshed with the hollow gear (340) through teeth.
7. A bottomless hole thread mill as set forth in claim 1, wherein: the milling unit (310), the limiting unit (320) and the adjusting unit (330) are arranged in three groups in total and distributed in an array mode by the central shaft of the milling head (2).
8. A bottomless hole thread mill as set forth in claim 1, wherein: the inside of thread milling cutter (1) has been seted up and has been prevented splash subassembly (4), prevent splash subassembly (4) including accomodating chute (410), and accomodate chute (410) and offer the inside of thread milling cutter (1) outside screw thread, accomodate the direction that chute (410) was seted up and the screw thread opposite direction that thread milling cutter (1) outside set up, accomodate transverse groove (420) have been seted up to the inside of thread milling cutter (1).
9. A bottomless hole thread mill as set forth in claim 1, wherein: the cooling assembly is characterized in that the cooling assembly (5) is arranged in the screw milling cutter (1), the cooling assembly (5) comprises cooling grooves (510), the cooling grooves (510) are formed in the screw milling cutter (1), connecting grooves (520) are formed in the screw milling cutter (1), five groups of the cooling grooves (510) are arranged in total and distributed in an array mode through the central shaft of the screw milling cutter (1), four groups of the connecting grooves (520) are distributed in an array mode through the central shaft of the screw milling cutter (1), and one group of the connecting grooves (520) of the four groups of the connecting grooves (520) are distributed between two adjacent groups of the cooling grooves (510) of the five groups of the cooling grooves (510).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410291684.9A CN117884724B (en) | 2024-03-14 | 2024-03-14 | Thread milling cutter free of bottoming hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410291684.9A CN117884724B (en) | 2024-03-14 | 2024-03-14 | Thread milling cutter free of bottoming hole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117884724A true CN117884724A (en) | 2024-04-16 |
| CN117884724B CN117884724B (en) | 2024-05-31 |
Family
ID=90643106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410291684.9A Active CN117884724B (en) | 2024-03-14 | 2024-03-14 | Thread milling cutter free of bottoming hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117884724B (en) |
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