CN219234180U - Thread milling cutter with bottom edge - Google Patents
Thread milling cutter with bottom edge Download PDFInfo
- Publication number
- CN219234180U CN219234180U CN202223451471.3U CN202223451471U CN219234180U CN 219234180 U CN219234180 U CN 219234180U CN 202223451471 U CN202223451471 U CN 202223451471U CN 219234180 U CN219234180 U CN 219234180U
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- thread
- cutting
- connecting rod
- edge
- bottom hole
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- 238000003801 milling Methods 0.000 title claims abstract description 16
- 238000005520 cutting process Methods 0.000 claims abstract description 144
- 238000005553 drilling Methods 0.000 claims abstract description 15
- 230000007704 transition Effects 0.000 claims description 4
- 238000003754 machining Methods 0.000 abstract description 15
- 230000002349 favourable effect Effects 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 238000010079 rubber tapping Methods 0.000 description 4
- 238000000227 grinding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
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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 application relates to the technical field of metal cutting tools, and specifically discloses a thread milling cutter with a bottom edge, which has the technical scheme that: including coaxial handle of a knife and the cutting component that sets up, cutting component set up in the one end of handle of a knife is used for processing internal thread hole, cutting component includes the connecting rod, the connecting rod is provided with the bottom hole cutting part that is used for drilling the bottom hole and is used for attacking the screw thread cutting part of internal thread, bottom hole cutting part is located the connecting rod is kept away from the tip of handle of a knife, screw thread cutting part is located the connecting rod is kept away from the lateral wall of handle of a knife. The application has the effect that is favorable to improving internal thread machining efficiency.
Description
Technical Field
The application relates to the technical field of metal cutting tools, in particular to a thread milling cutter with a bottom edge.
Background
Thread processing is a process for processing a workpiece by cutting, turning, milling, grinding and other processes by using a tool for making threads, and generally refers to a method for processing threads on a workpiece by using a forming tool or a grinding tool.
In the related art, conventional internal thread machining needs to drill a threaded bottom hole on a workpiece by using a twist drill, and then manually or mechanically tap threads on the wall of the bottom hole by using a screw tap.
Aiming at the related technology, the inventor considers that the traditional internal thread machining needs to drill and then tap threads, the machining procedures are more, and the machining efficiency of the internal thread is reduced.
Disclosure of Invention
In order to be favorable to improving internal thread machining efficiency, the application provides a thread milling cutter with a bottom edge.
The application provides a take bottom sword screw thread to mill tooth sword adopts following technical scheme:
the utility model provides a take bottom edge screw thread to mill tooth sword, includes the handle of a knife and the cutting element of coaxial setting, the cutting element set up in the one end of handle of a knife is used for processing internal thread hole, the cutting element includes the connecting rod, the connecting rod is provided with the bottom hole cutting part that is used for drilling the bottom hole and is used for attacking the screw thread cutting part of internal thread, bottom hole cutting part is located the connecting rod is kept away from the tip of handle of a knife, screw thread cutting part is located the connecting rod is kept away from the lateral wall of handle of a knife.
Through adopting above-mentioned technical scheme, bottom hole cutting portion and screw thread cutting portion pass through the connecting rod to be connected on the handle of a knife, when the internal thread hole that needs to carry out the work piece is processed, the handle of a knife passes through the connecting rod and drives bottom hole cutting portion and screw thread cutting portion rotation, and bottom hole cutting portion rotates in order to carry out the operation of drilling bottom hole, and screw thread cutting portion rotates in order to carry out the operation of attacking the internal thread to the bottom hole, and the operation of drilling bottom hole and the operation of attacking the internal thread go on simultaneously to be favorable to improving the efficiency of internal thread processing.
Preferably, the bottom hole cutting part comprises a plurality of bottom hole cutting edges, and the bottom hole cutting edges are uniformly arranged on the end face of the connecting rod, which is far away from the tool handle, at intervals.
Through adopting above-mentioned technical scheme, the bottom hole cutting edge sets up in the terminal surface that the handle of a knife was kept away from to the connecting rod in order to carry out the operation of drilling the bottom hole, and the bottom hole cutting edge is provided with a plurality of and is favorable to improving the efficiency of drilling the bottom hole.
Preferably, the thread cutting part includes a thread rough cutting edge and a thread fine cutting edge, the thread rough cutting edge being located close to the bottom hole cutting edge, the thread fine cutting edge being located on a side of the thread rough cutting edge remote from the bottom hole cutting edge.
Through adopting above-mentioned technical scheme, when the operation of tapping the internal thread is needed, the coarse cutting edge of screw thread carries out rough machining to the internal thread earlier, then carries out finish machining to the internal thread by the fine cutting edge of screw thread, is favorable to improving the processingquality of internal thread.
Preferably, the bottom hole cutting part further comprises a plurality of bottom edge chip grooves, the plurality of bottom edge chip grooves are uniformly arranged at intervals on the end face of the connecting rod, which is far away from the tool handle, each bottom edge chip groove is located between two adjacent bottom hole cutting edges, and each bottom edge chip groove is communicated with the side wall of the connecting rod.
Through adopting above-mentioned technical scheme, the chip groove of bottom edge can be with the piece after the bottom hole cutting edge cutting follow bottom hole discharge, is favorable to preventing that the piece from causing the influence to the operation of drilling bottom hole, and every bottom edge chip groove all is located between two adjacent bottom hole cutting edges, is favorable to improving the discharge efficiency of piece.
Preferably, the thread cutting part further comprises a plurality of side edge chip grooves, the side edge chip grooves are evenly spaced around the side wall of the connecting rod, and the side edge chip grooves are communicated with the bottom edge chip grooves in a one-to-one correspondence mode.
Through adopting above-mentioned technical scheme, the side sword junk slot can be with the piece after the cutting of screw thread rough cutting sword and screw thread fine cutting sword discharge from the bottom hole, is favorable to preventing that the piece from causing the influence to the operation of attacking the internal thread, and a plurality of side sword junk slot and a plurality of bottom sword junk slot one-to-one intercommunication for the piece after the bottom hole cutting sword is discharged through bottom sword junk slot and side sword junk slot.
Preferably, the side blade chip groove is arranged on the side wall of the connecting rod in a spiral surrounding mode.
Through adopting above-mentioned technical scheme, milling cutter is in the rotatory in-process, and this setting is convenient for the piece is discharged along the length direction of side sword junk slot under the effect of centrifugal force.
Preferably, the connecting rod is coaxially and fixedly arranged at one end of the tool handle, the diameter of the connecting rod is smaller than that of the tool handle, and the diameter of one end of the connecting rod connected to the tool handle is gradually increased to form circular arc transition.
Through adopting above-mentioned technical scheme, the diameter of connecting rod is less than the diameter of handle of a knife, is favorable to improving the stability when the handle of a knife drives cutting edge on the connecting rod and cuts the operation, and the connecting rod is connected in the one end diameter of handle of a knife and is the circular arc transition of increase gradually, is favorable to improving the stability that connecting rod and handle of a knife are connected.
Preferably, the angle range of the cutting edge of the fine cutting edge of the thread is set to 59-61 degrees.
By adopting the technical scheme, the angle of the cutting edge of the fine cutting edge of the thread is in the range, so that the processing quality of the internal thread is improved.
In summary, the present application includes at least one of the following beneficial technical effects:
1. through setting up bottom hole cutting portion and screw thread cutting portion on the connecting rod, when the internal thread hole processing of work piece is carried out to needs, the handle of a knife passes through the connecting rod and drives bottom hole cutting portion and screw thread cutting portion rotation, and bottom hole cutting portion rotates in order to carry out the operation of drilling the bottom hole, and screw thread cutting portion rotates in order to carry out the operation of attacking the internal thread to the bottom hole, and the operation of drilling the bottom hole and the operation of attacking the internal thread go on simultaneously to be favorable to improving the efficiency of internal thread processing.
2. Through setting up the bottom edge chip groove, the bottom edge chip groove can be with the piece after the bottom hole cutting edge cutting follow bottom hole discharge, is favorable to preventing that the piece from causing the influence to the operation of drilling bottom hole, and every bottom edge chip groove all is located between two adjacent bottom hole cutting edges, is favorable to improving the discharge efficiency of piece.
3. Through setting up side sword junk slot, the side sword junk slot can be with the piece after the cutting of screw thread rough cutting sword and screw thread fine cutting sword discharge from the bottom hole, is favorable to preventing that the piece from causing the influence to the operation of tapping the internal thread, and a plurality of side sword junk slot and a plurality of bottom sword junk slot one-to-one intercommunication for the piece after the bottom hole cutting sword is through bottom sword junk slot and side sword junk slot discharge.
Drawings
Fig. 1 is a schematic view of the overall structure of a thread milling cutter with a bottom edge in an embodiment of the present application.
FIG. 2 is a schematic view of a cutting assembly in an embodiment of the present application.
Fig. 3 is an enlarged view of a portion a in fig. 2.
Reference numerals illustrate:
1. a knife handle; 2. a cutting assembly; 21. a connecting rod; 22. a bottom hole cutting portion; 221. bottom hole cutting edge; 222. a bottom blade chip groove; 23. a thread cutting portion; 231. a thread rough cutting edge; 232. fine thread cutting edges; 233. side blade junk slots.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-3.
The embodiment of the application discloses take bottom sword screw thread to mill tooth sword, refer to fig. 1 and 2, including coaxial handle of a knife 1 and cutting element 2 that set up, handle of a knife 1 is cylindric setting, and cutting element 2 sets up in the one end of handle of a knife 1 and is used for processing the internal thread hole. Wherein, cutting assembly 2 includes a connecting rod 21, and connecting rod 21 is the setting of round bar form, and coaxial integrated into one piece of connecting rod 21 is in the one end of handle of a knife 1, and the diameter of connecting rod 21 is less than the diameter of handle of a knife 1, and it is worth mentioning that connecting rod 21 connects in the one end diameter of handle of a knife 1 and increases gradually and be the circular arc transition for connecting rod 21 equals the diameter of handle of a knife 1 towards the terminal surface diameter of handle of a knife 1, in order to improve connecting rod 21 and the joint strength of handle of a knife 1.
Referring to fig. 2 and 3, the connecting rod 21 is provided with a bottom hole cutting portion 22 for drilling a bottom hole, specifically, the bottom hole cutting portion 22 is located at an end of the connecting rod 21 far from the tool shank 1, the bottom hole cutting portion 22 includes a plurality of bottom hole cutting edges 221, and the plurality of bottom hole cutting edges 221 are uniformly spaced from an end surface of the connecting rod 21 far from the tool shank 1. In the present embodiment, the number of the bottom hole cutting edges 221 is set to four, one ends of the four bottom hole cutting edges 221 are all near the axial center of the end face of the connecting rod 21, and the other ends of the four bottom hole cutting edges 221 are all extended toward the edge of the end face of the connecting rod 21. When the connecting rod 21 rotates, the four bottom hole cutting blades 221 rotate accordingly to perform a bottom hole drilling operation.
Referring to fig. 2 and 3, the bottom hole cutting portion 22 further includes a plurality of bottom edge chip grooves 222 for discharging chips, the plurality of bottom edge chip grooves 222 are equally and uniformly spaced on the end surface of the connecting rod 21 far away from the tool shank 1, in this embodiment, the number of the bottom edge chip grooves 222 is four, one ends of the four bottom edge chip grooves 222 are all near the axial center of the end surface of the connecting rod 21, the other ends of the four bottom edge chip grooves 222 are all extended toward the edge of the end surface of the connecting rod 21, each bottom edge chip groove 222 is located between two adjacent bottom hole cutting edges 221, and each bottom edge chip groove 222 is communicated with the side wall of the connecting rod 21 so as to discharge chips cut by the bottom hole cutting edges 221.
Referring to fig. 2 and 3, the connecting rod 21 is further provided with a thread cutting portion 23 for tapping the internal thread, the thread cutting portion 23 being located at a side wall of the connecting rod 21 remote from the shank 1, and the thread cutting portion 23 being located near the bottom hole cutting portion 22. Specifically, the thread cutting section 23 includes a thread rough cutting edge 231 and a thread finish cutting edge 232, in this embodiment, the number of thread rough cutting edges 231 is set to one, the number of thread finish cutting edges 232 is set to two, one thread rough cutting edge 231 and two thread finish cutting edges 232 are arranged at intervals along the length direction of the connecting rod 21, the thread rough cutting edge 231 is close to the bottom hole cutting edge 221 for rough machining of an internal thread of the bottom hole, and the thread finish cutting edge 232 is located on a side of the thread rough cutting edge 231 away from the bottom hole cutting edge 221 for finish machining of an internal thread of the bottom hole. As the depth of drilling the bottom hole increases, the thread rough cutting blade 231 performs the rough machining of the internal thread on the bottom hole first, and then the thread fine cutting blade 232 performs the fine machining of the internal thread on the bottom hole.
The range of the cutting edge angle of the fine cutting edge 232 is set to 59 ° to 61 °, and the cutting edge angle of the fine cutting edge 232 is preferably 60 ° in this embodiment, which is advantageous for improving the processing quality of the internal thread. It should be noted that the distance between the rough cutting edge 231 of the thread and the axis of the connecting rod 21 is smaller than the distance between the fine cutting edge 232 of the thread and the axis of the connecting rod 21.
Referring to fig. 2 and 3, the thread cutting part 23 further includes a plurality of side blade chip grooves 233, the plurality of side blade chip grooves 233 are uniformly spaced around the side wall of the connecting rod 21, in this embodiment, the number of the side blade chip grooves 233 is four, and the four side blade chip grooves 233 are in one-to-one correspondence with the four bottom blade chip grooves 222, so that chips cut by the thread rough cutting blade 231 and the thread fine cutting blade 232 are discharged through the side blade chip grooves 233, and chips discharged by the bottom blade chip grooves 222 are discharged through the side blade chip grooves 233, so as to prevent the chips from interfering with the internal thread processing. It should be noted that the four side blade junk slots 233 are disposed on the side wall of the connecting rod 21 in a spiral surrounding manner so that the chips are discharged along the length direction of the side blade junk slots 233 under the action of centrifugal force.
The implementation principle of the thread milling cutter with the bottom edge is as follows: when the internal thread hole of the workpiece is required to be machined, the rotation of the tool handle 1 and the connecting rod 21 drives the bottom hole cutting edge 221, the thread rough cutting edge 231 and the thread fine cutting edge 232 to rotate so as to cut the workpiece, the bottom hole cutting edge 221 drills the bottom hole, generated scraps are discharged through the bottom edge chip groove 222, along with the increase of the depth of the drilled bottom hole, the thread rough cutting edge 231 performs rough machining on the internal thread first, then the thread fine cutting edge 232 performs fine machining on the internal thread, generated scraps are discharged through the side edge chip groove 233, and the operation of drilling the bottom hole and the operation of tapping the internal thread can be performed simultaneously, so that the efficiency of internal thread machining is improved.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (8)
1. The utility model provides a take bottom sword screw thread to mill tooth sword which characterized in that: including coaxially arranged handle of a knife (1) and cutting component (2), cutting component (2) set up in the one end of handle of a knife (1) is used for processing internal thread hole, cutting component (2) are including connecting rod (21), connecting rod (21) are provided with bottom hole cutting portion (22) that are used for drilling the bottom hole and are used for attacking internal thread screw thread cutting portion (23), bottom hole cutting portion (22) are located connecting rod (21) keep away from the tip of handle of a knife (1), screw thread cutting portion (23) are located connecting rod (21) keep away from the lateral wall of handle of a knife (1).
2. A thread milling cutter with a bottom edge as claimed in claim 1, wherein: the bottom hole cutting part (22) comprises a plurality of bottom hole cutting edges (221), and the bottom hole cutting edges (221) are uniformly arranged on the end face, far away from the tool handle (1), of the connecting rod (21) at intervals.
3. A thread milling cutter with a bottom edge as claimed in claim 2, wherein: the thread cutting part (23) comprises a thread rough cutting edge (231) and a thread fine cutting edge (232), wherein the thread rough cutting edge (231) is close to the bottom hole cutting edge (221), and the thread fine cutting edge (232) is positioned on one side of the thread rough cutting edge (231) away from the bottom hole cutting edge (221).
4. A thread milling cutter with a bottom edge as claimed in claim 2, wherein: the bottom hole cutting part (22) further comprises a plurality of bottom edge chip grooves (222), the bottom edge chip grooves (222) are uniformly arranged on the end face of the connecting rod (21) away from the tool handle (1) at intervals, each bottom edge chip groove (222) is located between two adjacent bottom hole cutting edges (221), and each bottom edge chip groove (222) is communicated with the side wall of the connecting rod (21).
5. A thread milling cutter with a bottom edge as claimed in claim 4, wherein: the thread cutting part (23) further comprises a plurality of side edge chip grooves (233), the side edge chip grooves (233) are uniformly arranged around the side wall of the connecting rod (21) at intervals, and the side edge chip grooves (233) are communicated with the bottom edge chip grooves (222) in a one-to-one correspondence mode.
6. A thread milling cutter with a bottom edge as claimed in claim 5, wherein: the side blade chip grooves (233) are arranged on the side wall of the connecting rod (21) in a spiral surrounding mode.
7. A thread milling cutter with a bottom edge as claimed in claim 1, wherein: the connecting rod (21) is coaxially and fixedly arranged at one end of the tool handle (1), the diameter of the connecting rod (21) is smaller than that of the tool handle (1), and the diameter of one end of the connecting rod (21) connected to the tool handle (1) is gradually increased to form circular arc transition.
8. A thread milling cutter with a bottom edge as claimed in claim 3, wherein: the angle range of the cutting edge of the fine cutting edge (232) of the thread is set to 59-61 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223451471.3U CN219234180U (en) | 2022-12-22 | 2022-12-22 | Thread milling cutter with bottom edge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223451471.3U CN219234180U (en) | 2022-12-22 | 2022-12-22 | Thread milling cutter with bottom edge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219234180U true CN219234180U (en) | 2023-06-23 |
Family
ID=86811101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223451471.3U Active CN219234180U (en) | 2022-12-22 | 2022-12-22 | Thread milling cutter with bottom edge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219234180U (en) |
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2022
- 2022-12-22 CN CN202223451471.3U patent/CN219234180U/en active Active
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