CN114309748B - Arc top milling cutter for curved surface machining - Google Patents
Arc top milling cutter for curved surface machining Download PDFInfo
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- CN114309748B CN114309748B CN202210120674.XA CN202210120674A CN114309748B CN 114309748 B CN114309748 B CN 114309748B CN 202210120674 A CN202210120674 A CN 202210120674A CN 114309748 B CN114309748 B CN 114309748B
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- 238000003801 milling Methods 0.000 title claims abstract description 46
- 238000003754 machining Methods 0.000 title claims abstract description 14
- 238000009434 installation Methods 0.000 claims description 22
- 238000005520 cutting process Methods 0.000 abstract description 14
- 230000033001 locomotion Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Abstract
The invention discloses an arc top milling cutter for curved surface machining, which comprises a connecting cutter handle, wherein the upper end of the connecting cutter handle is fixedly connected with a rotary cutter head, the lower end of the connecting cutter handle is provided with an adjusting groove, a central through hole is formed in the connecting cutter handle, the outer side of the rotary cutter head is provided with a connecting groove, the connecting groove is connected with an adjusting blade through a deflection shaft, one side of the adjusting blade is connected with a telescopic rod through a movable connecting piece, one side of the telescopic rod is provided with a meshing rack, a through hole is formed in the rotary cutter head, the telescopic rod is arranged in the through hole, an adjusting mechanism for driving the telescopic rod to stretch out and draw back is arranged in the rotary cutter head, and the adjusting mechanism comprises a central column. According to the invention, the central gear is utilized to drive the adjusting blade to deflect around the deflection shaft, so that the traditional fixed structure is replaced, the fine adjustment of the adjusting blade structure is realized, the cutting requirements of different curved surfaces are met, the movement and replacement of milling cutters are not needed, the processing efficiency is improved, and the structure is reasonable.
Description
Technical Field
The invention relates to the technical field of milling tools, in particular to a circular arc top milling tool for curved surface machining.
Background
A cutter is a tool used for cutting machining in machine manufacturing, also called a cutting tool. Most knives are mechanical but also hand-held. Since tools used in machine manufacture are basically used for cutting metallic materials, the term "tool" is generally understood to mean a metal cutting tool. The tool for cutting wood is called a woodworking tool. There is also a particularly applicable class of tools for geological exploration, well drilling, mine drilling, known as mine tools. Milling refers to cutting a workpiece using a rotating throw-away tool, and is a highly efficient machining method. When in operation, the cutter rotates, the workpiece moves, and the workpiece can be fixed, but the cutter rotating at the moment also has to move. Milling machines include horizontal milling machines and vertical milling machines, and also large planer milling machines. These machine tools may be ordinary machine tools or numerical control machine tools. A rotary milling cutter is used as the cutting machining of the cutter. Milling is generally performed on a milling machine or a boring machine, and is suitable for machining planes, grooves, various forming surfaces, special forming surfaces of a die, and the like. Each cutter tooth of the milling cutter periodically participates in intermittent cutting. The cutting thickness of each cutter tooth varies during the cutting process. The feed per tooth represents the relative displacement of the workpiece per revolution of the milling cutter through one tooth.
When the curved surface type part is processed, the processing surface is a space curved surface, and in the processing process, the processing surface is always in point contact with the milling cutter, so the curved surface finish processing is mostly performed by adopting a ball end milling cutter, but because the ball end milling cutter head structure is fixed, the milling cutter position is required to be continuously changed when the curved surface with different curvatures is processed, further different curved surfaces are processed, the processing flow control requires a skilled experience, so that a novice is difficult to get on hand, the processing can be finished only by changing the milling cutter or continuously debugging, and the defect exists in the curved surface processing aspect of the traditional milling cutter.
Disclosure of Invention
The invention aims at: in order to solve the problems, a circular arc top milling cutter for curved surface machining is provided.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The utility model provides a curved surface processing is with circular arc top milling cutter, includes connects the handle of a knife, connect handle of a knife upper end fixedly connected with rotatory tool bit, the adjustment tank has been seted up to connect the handle of a knife lower extreme, central through-hole has been seted up in the connection handle of a knife, the spread groove has been seted up in the rotatory tool bit outside, the spread groove is connected with adjusting blade through the axle that deflects, adjusting blade one side is connected with the telescopic link through movable connection spare, meshing rack has been seted up on one side of the telescopic link, the through-hole has been seted up in the rotatory tool bit, the telescopic link sets up in the through-hole, be provided with the telescopic actuating mechanism who drives the telescopic link in the rotatory tool bit.
Preferably, the adjusting mechanism comprises a central column, the central column is arranged in the central through hole, one end of the central column is provided with an adjusting gear, and the adjusting gear is arranged in the adjusting groove.
Preferably, the center gear is fixedly connected with the other end of the center column, the outside of the center gear is connected with a meshing rack in a meshing mode, one side of the meshing rack is provided with a limit stop in a fitting mode, and the limit stop is fixedly connected in the rotary cutter head.
Preferably, the limiting arc grooves are formed in the central gear, the limiting arc grooves are four, the limiting arc grooves are uniformly formed in the central gear in an annular shape, the limiting arc grooves are connected with the mounting limiting pieces, two mounting limiting pieces are arranged in the limiting arc grooves, and the mounting limiting pieces are arranged at one end of each limiting arc groove.
Preferably, a bottom clamping column is arranged between the mounting limiting plates, the upper end of the bottom clamping column is fixedly connected with a check disc, the center of the upper surface of the check disc is fixedly connected with an upper rotary fastener, the upper surface of the check disc is provided with a threaded hole, and the upper rotary fastener is connected with a lower rotary fastener.
Preferably, the lower rotary fastener is fixedly connected with a rotary disk, the upper end of the rotary disk is fixedly connected with a mounting cover, a screwing thread is arranged on the outer side of the rotary disk, the upper end of the mounting cover is connected with a fastening bolt, and the lower end of the fastening bolt is arranged in a threaded hole.
Preferably, the fastening bolt penetrates through the mounting cover and the rotating disc, the fastening bolt is connected with the mounting cover through threads, a plurality of fastening bolts are arranged, and a plurality of fastening bolts are uniformly arranged on the mounting cover in an annular shape.
In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:
1. According to the application, through the check disc structure, the upper rotary fastener at the upper end of the check disc is utilized, when the installation cover is installed at the upper end of the rotary cutter head, the rotary installation cover can not drive the check disc to rotate, so that the bottom clamping column can be always arranged between the installation limiting sheets during installation, the bottom clamping column can play a limiting role during operation adjustment of the milling cutter, the rotary adjusting gear is prevented, and the telescopic rod is excessively telescopic, so that the protection effect is achieved.
2. According to the application, the central gear structure is adopted, the central gear is utilized to rotate under the rotation drive of the adjusting gear, the meshing racks meshed with the central gear move, so that the telescopic rod stretches out and draws back in the through hole, the adjusting blade can deflect around the deflection shaft, the traditional fixed structure is replaced, the fine adjustment of the adjusting blade structure is realized, the cutting requirements of different curved surfaces are met, the movement and replacement of milling cutters are not needed, the processing efficiency is improved, and the structure is reasonable.
Drawings
Fig. 1 shows a schematic structural view of an overall milling tool provided according to an embodiment of the present invention;
fig. 2 shows a schematic view of an exploded construction of a milling tool provided according to an embodiment of the invention;
FIG. 3 shows a schematic view of the structure within a rotary cutter head provided in accordance with an embodiment of the present invention;
FIG. 4 shows a schematic view of the structure at the center through hole provided according to an embodiment of the present invention;
FIG. 5 shows a schematic view of the structure at a movable joint provided according to an embodiment of the present invention;
Fig. 6 shows a schematic structural diagram of a center post upper end connection provided according to an embodiment of the present invention;
Fig. 7 is a schematic bottom view of a mounting cover according to an embodiment of the present invention;
fig. 8 shows a schematic structural view of a lower rotating fastener according to an embodiment of the present invention.
Legend description:
1. connecting a knife handle; 2. an adjustment tank; 3. rotating the cutter head; 4. adjusting the blade; 5. a deflection shaft; 6. a mounting cover; 7. a fastening bolt; 8. a connecting groove; 9. a through hole; 10. a telescopic rod; 11. a sun gear; 12. limiting arc grooves; 13. screwing the screw thread; 14. a limit stop; 15. a check disk; 16. a threaded hole; 17. an upper rotating fastener; 18. a meshing rack; 19. a center through hole; 20. a movable connecting piece; 21. a rotating disc; 22. a bottom snap-in post; 23. installing a limiting piece; 24. a center column; 25. an adjusting gear; 26. and a lower rotating fastener.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-8, the present invention provides a technical solution:
The utility model provides a curved surface processing is with circular arc top milling cutter, including connecting handle of a knife 1, connecting handle of a knife 1 upper end fixedly connected with rotatory tool bit 3, adjusting slot 2 has been seted up to connecting handle of a knife 1 lower extreme, central through hole 19 has been seted up in the connecting handle of a knife 1, connecting slot 8 has been seted up in rotatory tool bit 3 outside, connecting slot 8 is connected with adjusting blade 4 through deflection axle 5, adjusting blade 4 one side is connected with telescopic link 10 through swing joint 20, meshing rack 18 has been seted up on telescopic link 10 one side, through-hole 9 has been seted up in the rotatory tool bit 3, telescopic link 10 sets up in through-hole 9, be provided with the telescopic adjustment mechanism who drives telescopic link 10 in the rotatory tool bit 3. The adjusting mechanism comprises a central column 24, the central column 24 is arranged in the central through hole 19, one end of the central column 24 is provided with an adjusting gear 25, and the adjusting gear 25 is arranged in the adjusting groove 2. The other end of the central column 24 is fixedly connected with a central gear 11, the outer side of the central gear 11 is connected with a meshing rack 18 in a meshing way, one side of the meshing rack 18 is provided with a limit stop 14 in a fitting way, and the limit stop 14 is fixedly connected in the rotary cutter head 3. The central gear 11 is provided with four limiting arc grooves 12, the four limiting arc grooves 12 are uniformly arranged on the central gear 11 in a ring shape, the limiting arc grooves 12 are internally connected with mounting limiting plates 23, two mounting limiting plates 23 are arranged in a single limiting arc groove 12, and the mounting limiting plates 23 are arranged at one end of the limiting arc groove 12. A bottom clamping column 22 is arranged between the mounting limiting plates 23, the upper end of the bottom clamping column 22 is fixedly connected with a check disc 15, the center of the upper surface of the check disc 15 is fixedly connected with an upper rotary fastener 17, the upper surface of the check disc 15 is provided with a threaded hole 16, and the upper rotary fastener 17 is connected with a lower rotary fastener 26. The lower rotary fastener 26 is fixedly connected with a rotary disk 21, the upper end of the rotary disk 21 is fixedly connected with a mounting cover 6, the outer side of the rotary disk 21 is provided with a screwing thread 13, the upper end of the mounting cover 6 is connected with a fastening bolt 7, and the lower end of the fastening bolt 7 is arranged in the threaded hole 16. The fastening bolts 7 penetrate through the mounting cover 6 and the rotating disc 21, the fastening bolts 7 are connected with the mounting cover 6 through threads, the fastening bolts 7 are provided with a plurality of fastening bolts 7, and the plurality of fastening bolts 7 are uniformly arranged on the mounting cover 6 in a ring shape.
Specifically, as shown in fig. 1, a circular arc top milling cutter for curved surface machining, including connecting handle 1, connecting handle 1 upper end fixedly connected with rotary tool bit 3, adjusting slot 2 has been seted up to connecting handle 1 lower extreme, center through hole 19 has been seted up in connecting handle 1, connecting slot 8 has been seted up in the rotary tool bit 3 outside, connecting slot 8 is connected with adjusting blade 4 through deflection shaft 5, adjusting blade 4 one side is connected with telescopic link 10 through swing joint 20, meshing rack 18 has been seted up to telescopic link 10 one side, set up through hole 9 in the rotary tool bit 3, telescopic link 10 sets up in through hole 9, be provided with the adjustment mechanism that drives telescopic link 10 flexible in rotary tool bit 3, set up at connecting handle 1 lower extreme adjusting slot 2, conveniently carry out adjusting blade 4's regulation, only need rotatory adjusting gear 25 that sets up in adjusting slot 2 can, and when milling cutter is fixed, can utilize adjusting slot 2 to consolidate clamping mechanism, make milling cutter rotatory more stable, for current milling cutter structure, it is fixed knot constructs to change in the curved surface machining that carries out curvature, it is continuous loaded down with trivial details to change, need, change in the flexible angle of milling cutter 10, can take place the change in the flexible tool 4 through the flexible adjustment shaft through the change of rotation shaft 4, can take place at the same side of the adjustable blade 4 through the flexible adjustment shaft, the flexible adjustment shaft is realized through the change of adjustment shaft 4, the flexible adjustment shaft is realized through the adjustable blade 4, the change in the flexible tool 4 is realized, the demand is realized through the change 4, and the flexible tool 4 is changed through the adjustment 4.
Specifically, as shown in fig. 4, the adjusting mechanism includes a central column 24, the central column 24 is disposed in the central through hole 19, one end of the central column 24 is provided with an adjusting gear 25, and the adjusting gear 25 is disposed in the adjusting groove 2. The other end of the central column 24 is fixedly connected with a central gear 11, the outer side of the central gear 11 is connected with a meshing rack 18 in a meshing way, one side of the meshing rack 18 is provided with a limit stop 14 in a fitting way, and the limit stop 14 is fixedly connected in the rotary cutter head 3. The limiting arc grooves 12 are formed in the central gear 11, the four limiting arc grooves 12 are evenly arranged on the central gear 11 in an annular mode, the limiting arc grooves 12 are internally connected with the mounting limiting plates 23, two mounting limiting plates 23 are arranged in a single limiting arc groove 12, the mounting limiting plates 23 are arranged at one end of the limiting arc groove 12, the central gear 11 is utilized to rotate under the rotation driving of the adjusting gear 25, the meshing racks 18 meshed with the central gear 11 move, the telescopic rod 10 is enabled to conduct telescopic motion in the through hole 9, the adjusting blade 4 can deflect around the deflection shaft 5, the traditional fixing structure is replaced, fine adjustment of the structure of the adjusting blade 4 is achieved, different curved surface cutting requirements are met, the movement and replacement of milling tools are not needed, the machining efficiency is improved, and the structure is reasonable.
Specifically, as shown in fig. 6, a bottom clamping column 22 is arranged between the mounting limiting plates 23, the upper end of the bottom clamping column 22 is fixedly connected with a check disc 15, the center of the upper surface of the check disc 15 is fixedly connected with an upper rotary fastener 17, the upper surface of the check disc 15 is provided with a threaded hole 16, and the upper rotary fastener 17 is connected with a lower rotary fastener 26. The lower rotary fastener 26 is fixedly connected with a rotary disk 21, the upper end of the rotary disk 21 is fixedly connected with a mounting cover 6, the outer side of the rotary disk 21 is provided with a screwing thread 13, the upper end of the mounting cover 6 is connected with a fastening bolt 7, and the lower end of the fastening bolt 7 is arranged in the threaded hole 16. The fastening bolt 7 runs through the installation lid 6 and the rotary disk 21, pass through threaded connection between fastening bolt 7 and the installation lid 6, fastening bolt 7 is provided with a plurality ofly, a plurality of fastening bolts 7 are annular evenly setting on the installation lid 6, utilize the last rotatory fastener 17 of check dish 15 upper end, when convenient installation lid 6 installs in rotatory tool bit 3 upper end, when rotatory installation lid 6, can not drive the check dish 15 rotation, guarantee that end block post 22 can set up between installation spacing piece 23 all the time when the installation, guarantee when milling cutter operation is adjusted, end block post 22 can play limiting displacement, prevent at rotatory adjusting gear 25, make telescopic link 10 excessively flexible, have the protection effect.
In summary, in the arc-shaped top milling cutter for curved surface machining provided in this embodiment, during installation, the adjusting blade 4 is connected in the connecting groove 8 through the deflection shaft 5, then one end of the telescopic rod 10 disposed in the through hole 9 is connected to one side of the adjusting blade 4 through the movable connecting piece 20, then the center post 24 passes through the center through hole 19, so that the center gear 11 is disposed in the rotary cutter head 3, the check disc 15 is vertically installed, the plurality of bottom clamping posts 22 can be disposed in the corresponding installation limiting pieces 23 of the limiting arc grooves 12, the upper rotary fastener 17 and the lower rotary fastener 26 are mutually buckled, at this time, the check disc 15 and the installation cover 6 can relatively rotate, the rotary disc 21 can be in threaded connection with the rotary cutter head 3 by using the screwing threads 13, and finally the fastening bolt 7 is fixedly connected to the installation cover 6, the bottom end of the fastening bolt 7 is arranged in the threaded hole 16 to achieve the function of limiting the rotation of the check disc 15, the bottom clamping column 22 can be separated from the installation limiting piece 23 through the rotation of the adjusting gear 25, the installation of the whole structure of the milling cutter is completed, when the milling cutter is used, one side of the adjusting blade 4 is rotationally connected with one side of the connecting groove 8 through the deflection shaft 5, the adjusting blade 4 deflects around the deflection shaft 5 through controlling the expansion and contraction of the telescopic rod 10 in the through hole 9, the milling range of the adjusting blade 4 is changed, further curved surface milling with different curvatures can be carried out, the procedure of controlling the telescopic rod 10 to carry out expansion and contraction operation is completed by virtue of the adjusting mechanism, the meshing rack 18 which is meshed with the central gear 11 is moved under the rotation of the adjusting gear 25, and further the telescopic rod 10 carries out expansion and contraction movement in the through hole 9, the adjusting blade 4 can deflect around the deflection shaft 5 to replace the traditional fixed structure, the fine adjustment of the structure of the adjusting blade 4 is realized, the cutting requirements of different curved surfaces are met, the movement and the replacement of milling cutters are not needed, the processing efficiency is improved, the structure is reasonable, the limiting arc groove 12 is in a circular arc-shaped through groove structure, when the check disc 15 is fixed by the fastening bolt 7, the bottom clamping column 22 is also fixed, namely, the limiting arc groove 12 plays a limiting role when rotating, prevent adjusting gear 25 excessive rotation, and increase adjusting blade 4's milling load, utilize the last rotatory fastener 17 of check disk 15 upper end, when convenient installation lid 6 installs at rotatory tool bit 3 upper end, when rotatory installation lid 6, can not drive the check disk 15 rotation, guarantee that end block post 22 can set up all the time between installation spacing piece 23 when the installation, guarantee when milling cutter operation is adjusted, end block post 22 can play spacing effect, prevent at rotatory adjusting gear 25 for telescopic link 10 excessively stretches out and draws back, has the protection effect.
The previous description of the embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (2)
1. The utility model provides a curved surface processing is with circular arc top milling cutter, includes connects handle of a knife (1), its characterized in that, connect handle of a knife (1) upper end fixedly connected with rotary tool bit (3), regulation groove (2) have been seted up to connect handle of a knife (1) lower extreme, center through hole (19) have been seted up in connecting handle of a knife (1), connecting groove (8) have been seted up in rotary tool bit (3) outside, connecting groove (8) are connected with regulation blade (4) through deflection axle (5), regulation blade (4) one side is connected with telescopic link (10) through swing joint (20), meshing rack (18) have been seted up on one side of telescopic link (10), through-hole (9) have been seted up in rotary tool bit (3), telescopic link (10) set up in through-hole (9), be provided with the actuating mechanism that drives telescopic link (10) and stretch out and draw back in rotary tool bit (3).
The adjusting mechanism comprises a central column (24), the central column (24) is arranged in the central through hole (19), one end of the central column (24) is provided with an adjusting gear (25), and the adjusting gear (25) is arranged in the adjusting groove (2);
The other end of the central column (24) is fixedly connected with a central gear (11), the outer side of the central gear (11) is connected with a meshing rack (18) in a meshing way, one side of the meshing rack (18) is provided with a limit stop (14) in a fitting way, and the limit stop (14) is fixedly connected in the rotary cutter head (3);
The gear structure comprises a central gear (11), wherein four limiting arc grooves (12) are formed in the central gear (11), the four limiting arc grooves (12) are uniformly arranged on the central gear (11) in a ring shape, two mounting limiting pieces (23) are connected in the limiting arc grooves (12), two mounting limiting pieces (23) are arranged in each limiting arc groove (12), and each mounting limiting piece (23) is arranged at one end of each limiting arc groove (12);
a check disc (15) is vertically installed, so that a plurality of bottom clamping columns (22) can be arranged in the installation limiting sheets (23) of the corresponding limiting arc grooves (12);
A bottom clamping column (22) is arranged between the mounting limiting plates (23), the upper end of the bottom clamping column (22) is fixedly connected with a check disc (15), the center of the upper surface of the check disc (15) is fixedly connected with an upper rotary fastener (17), the upper surface of the check disc (15) is provided with a threaded hole (16), and the upper rotary fastener (17) is connected with a lower rotary fastener (26);
The lower rotary fastener (26) is fixedly connected with a rotary disc (21), the upper end of the rotary disc (21) is fixedly connected with a mounting cover (6), a screwing thread (13) is arranged on the outer side of the rotary disc (21), the upper end of the mounting cover (6) is connected with a fastening bolt (7), and the lower end of the fastening bolt (7) is arranged in a threaded hole (16);
The screwing thread (13) enables the rotary disk (21) to be screwed with the rotary cutter head (3).
2. The arc top milling cutter for curved surface machining according to claim 1, wherein the fastening bolts (7) penetrate through the mounting cover (6) and the rotating disc (21), the fastening bolts (7) are connected with the mounting cover (6) through threads, the fastening bolts (7) are provided in a plurality, and the fastening bolts (7) are uniformly arranged on the mounting cover (6) in a ring shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210120674.XA CN114309748B (en) | 2022-02-09 | 2022-02-09 | Arc top milling cutter for curved surface machining |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210120674.XA CN114309748B (en) | 2022-02-09 | 2022-02-09 | Arc top milling cutter for curved surface machining |
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| CN114309748B true CN114309748B (en) | 2024-08-30 |
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| CN117532059B (en) * | 2023-12-06 | 2024-07-23 | 途研(苏州)精密机械科技有限公司 | High-strength rough and finish machining integrated milling cutter |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208411496U (en) * | 2018-04-24 | 2019-01-22 | 广州广汽优利得汽车内饰系统研发有限公司 | A kind of overturning position-limit mechanism of automotive seat |
| CN210731150U (en) * | 2019-07-11 | 2020-06-12 | 苏州天音腾达机电工程有限公司 | Milling cutter blade structure for metal processing |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8678721B2 (en) * | 2011-05-17 | 2014-03-25 | Barbara Shozda | Dual blade boring tool assembly |
| CN211804044U (en) * | 2020-03-02 | 2020-10-30 | 广东优能特五金科技有限公司 | High-efficiency plane milling cutter |
| CN112475342A (en) * | 2020-11-12 | 2021-03-12 | 娄底鼎力液压科技有限公司 | Boring cutter optimizing structure of numerical control scraping and boring tumbling mill |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208411496U (en) * | 2018-04-24 | 2019-01-22 | 广州广汽优利得汽车内饰系统研发有限公司 | A kind of overturning position-limit mechanism of automotive seat |
| CN210731150U (en) * | 2019-07-11 | 2020-06-12 | 苏州天音腾达机电工程有限公司 | Milling cutter blade structure for metal processing |
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