CN114101815A - Spiral fluted tap - Google Patents
Spiral fluted tap Download PDFInfo
- Publication number
- CN114101815A CN114101815A CN202111325113.5A CN202111325113A CN114101815A CN 114101815 A CN114101815 A CN 114101815A CN 202111325113 A CN202111325113 A CN 202111325113A CN 114101815 A CN114101815 A CN 114101815A
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- spiral
- groove
- angle
- chip
- chamfer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G5/00—Thread-cutting tools; Die-heads
- B23G5/02—Thread-cutting tools; Die-heads without means for adjustment
- B23G5/06—Taps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G5/00—Thread-cutting tools; Die-heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G5/00—Thread-cutting tools; Die-heads
- B23G5/005—Thread-cutting tools; Die-heads with lubrication or cooling devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Devices For Machine Tools (AREA)
Abstract
The invention discloses a spiral fluted tap which comprises an installation rod, wherein a chamfer, a spiral angle and a chip groove are arranged on the outer side of the installation rod, the spiral angle is provided with a plurality of chamfer angles and is uniformly arranged at the bottom end of the chamfer, the chamfer and the chip groove are both arranged between the two spiral angles, a lubricating mechanism is arranged on the inner side of the installation rod, the lubricating mechanism comprises an oil storage tank, an infusion tube, a connecting tube and an oil delivery port, the oil storage tank is fixedly connected to the inner side of the installation rod, the infusion tube is fixedly connected to the bottom end of the oil storage tank, and the other end of the infusion tube is fixedly connected to the inner side of the spiral angle. According to the invention, the oil storage tank is arranged, the bottom end of the oil storage tank is fixedly connected with the infusion tube, the outer side of the infusion tube is uniformly provided with the connecting tube, the other end of the connecting tube is provided with the oil delivery port, the oil delivery port is uniformly arranged on the inner side of the chip pocket, in the cutting process, the waste material moves upwards along the chip pocket, and the lubricating liquid at the oil delivery port can effectively provide a lubricating effect, so that the waste chips are prevented from being blocked in the chip pocket, and the damage to the silk tap is avoided.
Description
Technical Field
The invention relates to the field of spiral fluted taps, in particular to a spiral fluted tap.
Background
The spiral fluted tap is a tool for processing threads, belong to one kind of screw tap, because its chip groove is the heliciform and obtains the name, the spiral fluted tap divides into levogyration spiral fluted tap and dextrorotation spiral fluted tap, the geometric parameters of spiral fluted tap mainly remain the helix angle, the chip pocket, anterior angle and relief angle, the spiral fluted tap has long-lived, the high cost of efficiency is low, the cooling lubrication condition is good, the cutting is steadily convenient for to get into advantages such as knot and moment of torsion are little, the spiral fluted tap is the most commonly used one kind in the screw tap, adopt different helix angle according to the operating mode of difference, it is common that dextrorotation 15 and 42, generally speaking the helix angle is big more, the chip removal performance is better, be applicable to the blind hole processing, the screw tap divide into according to its shape: the straight flute screw tap, the spiral point screw tap and the extrusion screw tap have long performance, the straight flute screw tap has the strongest universality, through holes or no through holes can be machined, nonferrous metals or ferrous metals can be machined, but the pertinence is poor, the spiral flute screw tap is more suitable for machining threads without through holes, the cutting chips are discharged backwards during machining, the actual cutting front angle of the screw tap is increased along with the increase of the spiral angle due to the spiral angle, the spiral angle is selected to be a little larger than that of the nonferrous metals, the cutting angles can be about 45 degrees, the cutting chips are sharp, and the cutting chips are discharged forwards during machining the threads by the spiral point screw tap. The core part of the cutting tool is large in size design, good in strength and capable of bearing large cutting force. The effect of processing nonferrous metal, stainless steel and ferrous metal is good, a spiral-point tap is preferably adopted for the thread of the through hole, and the extrusion tap is more suitable for processing nonferrous metal and is different from the working principle of the cutting tap.
The current spiral fluted tap is at the in-process of tapping, the chip groove often can be blockked up to the smear metal, tank bottom circular arc radius influences cutting shaping and chip removal factor, circular arc radius will increase the bits of curling curvature too big, arouse the chip removal difficulty, the additional deformation of chip will be increased to circular arc radius undersize, make the cutting force increase, the phenomenon that leads to tipping and rupture easily takes place, reduce life, and simultaneously, the sweeps rubs in the chip groove and can produce a large amount of heats, long-time use, lead to the chip groove to warp easily, influence follow-up use, need change whole spiral fluted tap, cause the waste.
Disclosure of Invention
The present invention has been made to solve the above-mentioned problems occurring in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: a spiral fluted tap comprises a mounting rod, wherein a chamfer, a spiral angle and a chip groove are arranged on the outer side of the mounting rod, the spiral angle is provided with a plurality of spiral angles which are uniformly arranged at the bottom end of the chamfer, the chamfer and the chip groove are both arranged between the two spiral angles, and a lubricating mechanism is arranged on the inner side of the mounting rod;
lubricating mechanism includes batch oil tank, transfer line, connecting pipe and oil delivery mouth, batch oil tank fixed connection is in the inboard of installation pole, transfer line fixed connection is in the bottom of batch oil tank, the other end fixed connection of transfer line is in the inboard of helical angle, the connecting pipe is provided with a plurality of and even fixed connection in the outside of transfer line, oil delivery mouth fixed connection is in the other end of connecting pipe, the oil delivery mouth sets up in the inboard of chip pocket.
Preferably, the top end of the installation rod is provided with a fixed head, the top end of the fixed head is fixedly connected with a connecting rod, and the top end of the connecting rod is fixedly connected with a connecting port.
Preferably, the top end of the mounting rod is fixedly connected with a mounting head, and the upper end and the lower end of the outer side of the mounting head are both provided with threaded holes.
Preferably, the inner side of the fixing head is provided with a through groove, the through groove and the mounting head are arranged correspondingly, and the top end of the inner side of the through groove is uniformly provided with a spring.
Preferably, one side of the oil storage tank is provided with a liquid injection port, and the other end of the liquid injection port is arranged on the outer side of the mounting rod.
Preferably, the bottom end of the helical angle is provided with a front angle, and the angle of the front angle is 4-8 degrees.
Preferably, the angle of the helix angle is set to 35 ° to 40 °, and the radius of the lower portion of the flute is smaller than the radius of the upper portion.
Preferably, the chamfer and the chip groove are both arranged smoothly, and the chamfer is connected with the top end of the chip groove smoothly.
Preferably, the upper end and the lower end of the inner side of the mounting head are both provided with thread grooves, and the inner sides of the thread grooves are in threaded connection with threaded rods.
The invention has the technical effects and advantages that:
(1) according to the invention, the oil storage tank is arranged on the inner side of the mounting rod, the bottom end of the oil storage tank is fixedly connected with the liquid conveying pipe, the connecting pipe is uniformly arranged on the outer side of the liquid conveying pipe, the oil conveying port is arranged at the other end of the connecting pipe, the oil conveying port is uniformly arranged on the inner side of the chip pocket, in the cutting process, waste materials move upwards along the chip pocket, lubricating liquid at the oil conveying port can effectively provide a lubricating effect, waste chips are prevented from being blocked in the chip pocket, and the damage to a tap is avoided;
(2) the mounting head is fixedly connected to the top end of the mounting rod, the upper end and the lower end of the inner side of the mounting head are respectively provided with a threaded hole, the inner side of the fixing head is provided with a through groove, the top end of the through groove is uniformly provided with a spring, after the mounting head is arranged in the through groove, the mounting head extrudes the spring, and meanwhile, the threaded groove and the outer side of the fixing head are provided with threaded holes to be superposed, so that a threaded rod is conveniently and fixedly connected to the inner side of the threaded groove, the mounting stability is effectively improved, and meanwhile, the mounting head is convenient to detach;
(3) according to the invention, the chip groove is designed from thin to thick from the lower end to the upper end, the lower end maintains the design of smaller radius, the increase of the curling rate is avoided, the cutting force is reduced, and the design of larger radius of the upper end avoids the blocking of scraps in the chip groove, so that the chip removal efficiency is increased, and the chip removal amount is increased.
Drawings
Fig. 1 is a schematic view of the main structure of the present invention.
Fig. 2 is a schematic front view of the present invention.
Fig. 3 is a schematic view of the internal structure of the present invention.
Fig. 4 is a schematic structural view of the interior of the fixing head of the present invention.
In the figure: the connecting rod comprises a connecting port 1, a connecting rod 2, a fixing head 3, an installation rod 4, a chamfer 5, a helical angle 6, a chip groove 7, a front angle 8, an installation head 9, a threaded hole 10, an oil storage tank 11, an injection port 12, an infusion tube 13, a connecting tube 14, an oil delivery port 15, a through groove 16, a spring 17, a threaded groove 18 and a threaded rod 19.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a spiral fluted tap shown in figures 1-3, which comprises a mounting rod 4, wherein the outer side of the mounting rod 4 is provided with a chamfer 5, a spiral angle 6 and a chip groove 7, the spiral angle 6 is provided with a plurality of chips uniformly arranged at the bottom end of the chamfer 5, the chamfer 5 and the chip groove 7 are both arranged between the two spiral angles 6, and the inner side of the mounting rod 4 is provided with a lubricating mechanism;
the lubricating mechanism comprises an oil storage tank 11, an infusion tube 13, a connecting tube 14 and an oil delivery port 15, wherein the oil storage tank 11 is fixedly connected to the inner side of the mounting rod 4, the infusion tube 13 is fixedly connected to the bottom end of the oil storage tank 11, the other end of the infusion tube 13 is fixedly connected to the inner side of the spiral angle 6, the connecting tube 14 is provided with a plurality of uniform connecting tubes 13, the oil delivery port 15 is fixedly connected to the other end of the connecting tube 14, the oil delivery port 15 is arranged on the inner side of the chip groove 7, a liquid injection port 12 is arranged on one side of the oil storage tank 11, the other end of the liquid injection port 12 is arranged on the outer side of the mounting rod 4, when the lubricating liquid in the oil storage tank 11 is used up, the lubricating liquid can be injected through the liquid injection port 12, a plug is arranged on the outer side of the liquid injection port 12, the lubricating liquid is prevented from falling on the outer side to cause pollution, the durability of the device is improved, and the oil storage tank 11 is arranged on the inner side of the mounting rod 4, the bottom end of the oil storage tank 11 is fixedly connected with an infusion tube 13, a connecting tube 14 is uniformly arranged on the outer side of the infusion tube 13, an oil delivery port 15 is arranged at the other end of the connecting tube 14, the oil delivery port 15 is uniformly arranged on the inner side of the chip groove 7, in the cutting process, waste materials move upwards along the chip groove 7, lubricating liquid fills the inner side of the infusion tube 13 downwards from the inner side of the oil storage tank 11, the lubricating liquid in the infusion tube 13 can be brought into the inner side of the oil delivery port 15 by the connecting tube 14, the waste materials sliding down from the chip groove 7 are lubricated, the lubricating liquid at the oil delivery port 15 can effectively provide a lubricating effect, waste chips are prevented from being blocked in the chip groove 7, and damage to a silk tap is avoided;
the top end of the mounting rod 4 is provided with a fixed head 3, the top end of the fixed head 3 is fixedly connected with a connecting rod 2, the top end of the connecting rod 2 is fixedly connected with a connecting port 1, the connecting port 1 is convenient to mount on a driving device to drive a screw tap, the top end of the mounting rod 4 is fixedly connected with a mounting head 9, the upper end and the lower end of the outer side of the mounting head 9 are respectively provided with a threaded hole 10, the inner side of the fixed head 3 is provided with a through groove 16, the through groove 16 and the mounting head 9 are correspondingly arranged, the top end of the inner side of the through groove 16 is uniformly provided with a spring 17, the upper end and the lower end of the inner side of the mounting head 9 are respectively provided with a threaded groove 18, the inner side of the threaded groove 18 is in threaded connection with a threaded rod 19, the mounting head 9 is fixedly connected with the top end of the mounting rod 4, the upper end and the lower end of the inner side of the mounting head 9 are respectively provided with a threaded hole 10, the inner side of the fixed head 3 is provided with a through groove 16, and the top end of the through groove 16 is uniformly provided with a spring 17, after the mounting head 9 is arranged inside the through groove 16, the mounting head 9 extrudes the spring 17, the spring 17 effectively prevents the mounting head 9 from being clamped inside the through groove 16, the mounting head 9 is more convenient to detach, meanwhile, the threaded groove 18 is overlapped with the threaded hole arranged outside the fixing head 3, the threaded rod 19 is conveniently and fixedly connected inside the threaded groove 18, threaded holes are arranged at the symmetrical positions of the upper part and the lower part of the fixing head 3, the threaded rod 19 firstly penetrates through the threaded hole arranged outside the fixing head 3 to enter the threaded groove 18 arranged inside the mounting head 9, and is finally fixed inside the through groove 16, the mounting stability is effectively improved, and meanwhile, the mounting head is convenient to detach;
the bottom end of the spiral angle 6 is provided with a front angle 8, the angle of the front angle 8 is set to be 4-8 degrees, the front angle 8 can be adjusted according to different threaded holes to be cut, a proper angle can be selected from 4-8 degrees, the cutting work can be rapidly carried out, the inner side of the threaded hole can be rapidly drilled, and the cutting work efficiency is effectively improved;
the angle of the helical angle 6 is set to be 35-40 degrees, the radius of the lower part of the chip groove 7 is smaller than that of the upper part, the chip groove 7 is designed from the lower end to the upper end in a thin to thick mode, the lower end maintains the design of smaller radius, the increase of the curling rate is avoided, the cutting force is reduced, waste materials can move upwards along the chip groove 7, the upper end is designed with larger radius, the waste chips are prevented from being blocked in the chip groove 7, the chip removal efficiency is increased, the chip removal amount is increased, the chamfer 5 and the chip groove 7 are smoothly arranged and are smoothly arranged in a circular arc shape, the chamfer 5 is smoothly connected to the top end of the chip groove 7, the waste chips can be effectively and smoothly discharged, the chip removal amount is increased, the chip removal efficiency is increased, the phenomenon that the waste chips are accumulated in the chip groove and the chamfer 5 of 7 and cannot be discharged is avoided, and the damage of the helical angle 6 is avoided, in order to increase the chip removal space of the screw tap, the diameter d of the cone center of the spiral groove screw tap is = 0.4 d, d in the formula is the diameter of the screw tap, and meanwhile, the whole groove shape of the spiral groove is stressed to be in circular arc smooth connection, the circular arc radius of the front blade face is large enough, the circular arc radius of the groove bottom is moderate, because the circular arc radius of the groove bottom is an element influencing cutting forming and chip removal, the curvature of rolled chips is increased when the circular arc radius is too large, the chip removal is difficult, and the additional deformation of the chips is increased when the circular arc radius is too small, so that the cutting force is increased.
The working principle of the invention is as follows: the angle of the front angle 8 is set to be 4 degrees to 8 degrees, the front angle 8 can be adjusted according to different cutting threaded holes, a proper angle can be selected between 4 degrees and 8 degrees, the cutting work can be ensured to be rapidly carried out, the front angle 8 can rapidly drill into the inner side of a threaded hole, the efficiency of the cutting work is effectively improved, an oil storage tank 11 is arranged on the inner side of the mounting rod 4, a liquid injection port 12 is arranged on one side of the oil storage tank 11, the other end of the liquid injection port 12 is arranged on the outer side of the mounting rod 4, when the lubricating liquid in the oil storage tank 11 is used up, the lubricating liquid can be injected through the liquid injection port 12, a plug is arranged on the outer side of the liquid injection port 12, the lubricating liquid is prevented from falling on the outer side to cause pollution, the durability of the device is improved, a liquid conveying pipe 13 is fixedly connected to the bottom end of the oil storage tank 11, connecting pipes 14 are uniformly arranged on the outer side of the liquid conveying pipe 13, and an oil conveying port 15 is arranged at the other end of the connecting pipe 14, the oil delivery ports 15 are uniformly arranged on the inner side of the chip pocket 7, in the cutting process, waste materials move upwards along the chip pocket 7, lubricating fluid at the oil delivery ports 15 can effectively provide a lubricating effect, waste chips are prevented from being blocked in the chip pocket 7, the damage to a silk tap is avoided, the mounting head 9 is fixedly connected to the top end of the mounting rod 4, threaded holes 10 are formed in the upper end and the lower end of the inner side of the mounting head 9, the through groove 16 is formed in the inner side of the fixing head 3, the top end of the through groove 16 is uniformly provided with springs 17, after the mounting head 9 is arranged in the through groove 16, the mounting head 9 extrudes the springs 17 after the mounting head 9 is arranged in the through groove 16, the springs 17 effectively prevent the mounting head 9 from being clamped in the inner side of the through groove 16, the dismounting work of the mounting head 9 is more facilitated, and meanwhile, the threaded grooves 18 and the threaded holes arranged on the outer side of the fixing head 3 are coincided, the threaded rod 19 is conveniently and fixedly connected to the inner side of the thread groove 18, the threaded rod 19 is provided with threaded holes at symmetrical positions above and below the fixing head 3, the threaded rod 19 firstly penetrates into the threaded hole at the outer side of the fixing head 3 to enter the thread groove 18 at the inner side of the mounting head 9 and is finally fixed at the inner side of the through groove 16, the mounting stability is effectively improved, meanwhile, the disassembly is convenient, the chip containing groove 7 is designed from thin to thick from the lower end to the upper end, the lower end maintains the design with smaller radius, the increase of the curling rate is avoided, the cutting force is reduced, the design with larger radius is adopted at the upper end, the waste chips are prevented from being blocked in the chip containing groove 7, the chip removal efficiency is increased, the chip removal amount is improved, the phenomenon that the waste chips cannot be removed due to the accumulation of the waste chips in the chip containing groove and the chamfer 5 of the 7 is avoided, the damage of the helix angle 6 is avoided, in order to increase the chip removal space of the screw tap, the diameter of the cone center diameter d = 0.4 d of the screw tap spiral groove, in the formula, d is the diameter of a screw tap, and meanwhile, the whole groove shape of the spiral groove is stressed to be in circular arc smooth connection, the circular arc radius of the front edge face is large enough, the circular arc radius of the groove bottom is moderate, because the circular arc radius of the groove bottom is an element influencing cutting forming and chip removal, the chip coiling curvature is increased when the circular arc radius is too large, the chip removal is difficult, and the additional deformation of chips is increased when the circular arc radius is too small, so that the cutting force is increased.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "mounted," "connected," and "secured" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integral to; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The standard parts used by the invention can be purchased from the market, and the special-shaped parts can be customized according to the description and the description of the attached drawings.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The spiral fluted tap comprises a mounting rod (4), and is characterized in that a chamfer (5), a spiral angle (6) and a chip groove (7) are arranged on the outer side of the mounting rod (4), the spiral angle (6) is provided with a plurality of chips uniformly arranged at the bottom end of the chamfer (5), the chamfer (5) and the chip groove (7) are both arranged between the two spiral angles (6), and a lubricating mechanism is arranged on the inner side of the mounting rod (4);
lubricating mechanism includes batch oil tank (11), transfer line (13), connecting pipe (14) and oil delivery mouth (15), batch oil tank (11) fixed connection is in the inboard of installation pole (4), transfer line (13) fixed connection is in the bottom of batch oil tank (11), the other end fixed connection of transfer line (13) is in the inboard of spiral angle (6), connecting pipe (14) are provided with a plurality of and even fixed connection in the outside of transfer line (13), oil delivery mouth (15) fixed connection is in the other end of connecting pipe (14), oil delivery mouth (15) set up in the inboard of chip pocket (7).
2. A spiral fluted tap according to claim 1, wherein the top end of the mounting rod (4) is provided with a fixed head (3), the top end of the fixed head (3) is fixedly connected with a connecting rod (2), and the top end of the connecting rod (2) is fixedly connected with a connecting port (1).
3. A spiral fluted tap according to claim 1, wherein an attachment head (9) is fixedly connected to the top end of the attachment rod (4), and threaded holes (10) are formed in both the upper and lower ends of the outer side of the attachment head (9).
4. A spiral fluted tap according to claim 2, wherein a through groove (16) is formed inside the fixing head (3), the through groove (16) and the mounting head (9) are arranged corresponding to each other, and the top end of the inside of the through groove (16) is uniformly provided with a spring (17).
5. A spiral fluted tap according to claim 1, wherein a liquid filling port (12) is provided at one side of the oil reservoir (11), and the other end of the liquid filling port (12) is provided outside the mounting rod (4).
6. A spiral fluted tap according to claim 1, wherein a bottom end of the spiral angle (6) is provided with a front angle (8), and the angle of the front angle (8) is 4 ° to 8 °.
7. A spiral fluted tap according to claim 1, wherein the angle of the helix angle (6) is set to 35 ° -40 °, and the radius of the lower part of the chip flute (7) is smaller than the radius of the upper part.
8. A spiral fluted tap according to claim 1, wherein the chamfer (5) and the chip flute (7) are smoothly arranged, and the chamfer (5) is smoothly connected to the tip of the chip flute (7).
9. A spiral fluted tap according to claim 3, wherein the mounting head (9) is provided at both upper and lower ends thereof with thread grooves (18) inside, and the thread grooves (18) are threadedly engaged with the threaded rod (19) inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111325113.5A CN114101815A (en) | 2021-11-10 | 2021-11-10 | Spiral fluted tap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111325113.5A CN114101815A (en) | 2021-11-10 | 2021-11-10 | Spiral fluted tap |
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| Publication Number | Publication Date |
|---|---|
| CN114101815A true CN114101815A (en) | 2022-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111325113.5A Pending CN114101815A (en) | 2021-11-10 | 2021-11-10 | Spiral fluted tap |
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| CN (1) | CN114101815A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1407848A1 (en) * | 2002-10-08 | 2004-04-14 | Sandvik Aktiebolag | Thread cutting tool with cooling |
| CN204686225U (en) * | 2015-06-09 | 2015-10-07 | 圆兴(厦门)精密工具有限公司 | Varied angle spiral fluted tap |
| CN208231022U (en) * | 2018-03-28 | 2018-12-14 | 北京首航科学技术开发有限公司 | A kind of wedge thread milling cutter |
| CN209598353U (en) * | 2019-03-01 | 2019-11-08 | 山东工具制造有限公司 | A kind of numerical control machining center screw tap structure |
| CN211708302U (en) * | 2020-01-15 | 2020-10-20 | 温岭市玲荣工具股份有限公司 | Heat dissipation screw tap |
| CN214392683U (en) * | 2020-12-25 | 2021-10-15 | 江苏德美克机械科技有限公司 | Milling cutter mechanism with thread structure |
-
2021
- 2021-11-10 CN CN202111325113.5A patent/CN114101815A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1407848A1 (en) * | 2002-10-08 | 2004-04-14 | Sandvik Aktiebolag | Thread cutting tool with cooling |
| CN204686225U (en) * | 2015-06-09 | 2015-10-07 | 圆兴(厦门)精密工具有限公司 | Varied angle spiral fluted tap |
| CN208231022U (en) * | 2018-03-28 | 2018-12-14 | 北京首航科学技术开发有限公司 | A kind of wedge thread milling cutter |
| CN209598353U (en) * | 2019-03-01 | 2019-11-08 | 山东工具制造有限公司 | A kind of numerical control machining center screw tap structure |
| CN211708302U (en) * | 2020-01-15 | 2020-10-20 | 温岭市玲荣工具股份有限公司 | Heat dissipation screw tap |
| CN214392683U (en) * | 2020-12-25 | 2021-10-15 | 江苏德美克机械科技有限公司 | Milling cutter mechanism with thread structure |
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Application publication date: 20220301 |
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