CN115041967B - High-precision boring and milling device for crankshaft mounting hole - Google Patents
High-precision boring and milling device for crankshaft mounting hole Download PDFInfo
- Publication number
- CN115041967B CN115041967B CN202210768635.0A CN202210768635A CN115041967B CN 115041967 B CN115041967 B CN 115041967B CN 202210768635 A CN202210768635 A CN 202210768635A CN 115041967 B CN115041967 B CN 115041967B
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- round block
- mounting hole
- guide wheel
- boring
- milling device
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/02—Machine tools for performing different machining operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
Abstract
The application relates to a high-precision boring and milling device for a crankshaft mounting hole, which comprises a feeding mechanism and a main motor positioned on the surface of the feeding mechanism, wherein a cutter holder is arranged on an output shaft of the main motor, and a first round block is arranged at the end part of the output shaft in a sliding manner through a sliding rod. According to the boring and milling device, the first round block and the second round block are arranged at the front end and the rear end of the tool apron, so that the first guide wheel is contacted with one end of the mounting hole which is not subjected to finish boring, the second guide wheel is contacted with one end of the finish boring, the first round block, the second round block and the output shaft are kept at higher coaxiality, the cutter yielding phenomenon is effectively reduced, the precision is greatly improved, the automatic switching function of the first round block and the second round block is provided, when the tool apron is about to be close to the first round block, the limitation of the first round block is automatically relieved, the first round block can be separated from the mounting hole, the normal-shrinkage type second guide wheel on the surface of the second round block is automatically ejected, the function of the first guide wheel is replaced, and the finish boring and the switching process are finished at a glance.
Description
Technical Field
The application belongs to the technical field of boring and milling, and particularly relates to a high-precision boring and milling device for a crankshaft mounting hole.
Background
The crankcase is a part for installing a crankshaft, and is divided into an upper crankcase and a lower crankcase, wherein the upper crankcase and the cylinder body are cast into a whole, and the lower crankcase is used for storing lubricating oil and sealing the upper crankcase.
The crankcase needs to bore holes in the machining process, wherein a crankshaft mounting hole needs to be subjected to rough boring to form a blank hole, then finish boring machining is performed, and in the finish boring process, the rotating shaft of the boring cutter is easy to generate cutter yielding phenomenon when the gravity or the stress is uneven due to the fact that the crankshaft mounting hole is deeper, so that the finish machining of the mounting hole is not facilitated.
Disclosure of Invention
The application aims to solve the problems and provide the high-precision boring and milling device for the crankshaft mounting hole, which is simple in structure and reasonable in design.
The application realizes the above purpose through the following technical scheme:
the high-precision boring and milling device for the crankshaft mounting hole comprises a feeding mechanism and a main motor positioned on the surface of the feeding mechanism, wherein a cutter holder is arranged on an output shaft of the main motor, a first round block is arranged at the end part of the output shaft in a sliding manner through a sliding rod, a second round block is fixedly arranged on the circumferential surface of the output shaft, which is close to the end part, a telescopic first guide wheel is arranged on the circumferential surface of the first round block, a telescopic second guide wheel is arranged on the circumferential surface of the second round block, and the guide wheel is used for tightly attaching the inner wall of a mounting hole when finely boring the crankshaft mounting hole;
the surface sliding of output shaft is provided with the limiting plate, link to each other through the stock of joint formula between limiting plate and the first circle piece, limiting plate side surface is provided with the spacing wheel, the limiting plate is used for restricting first circle piece removal at the blade holder in-process of feeding, and wherein, the second guide pulley is in normal shrink state, and the second guide pulley stretches out automatically when the blade holder is fed and is close to first circle piece.
As a further optimization scheme of the application, a circular ring is arranged in the first circular block, the circular ring is connected with the first guide wheel through a hinge rod, a rotating rod with meshing stripes for driving the circular ring to rotate is arranged in the first circular block, the rotating rod extends to the outer part of the first circular block through a circular plate, and a fixing piece is arranged on the circular plate and used for self fixing.
As a further optimization scheme of the application, the fixing piece is a fixing bolt, a threaded hole corresponding to the first fixing bolt is formed in the outer surface of the first round block, and an arc-shaped groove corresponding to the first fixing bolt is formed in the surface of the round plate.
As a further optimization scheme of the application, the surface of the second round block is provided with a first through groove for a long rod to pass through, the surface of the tool apron is provided with a plurality of through holes parallel to the axial direction, one side surface of the first round block, which is close to the sliding rod, is provided with a fixed plate, the surface of the fixed plate is provided with an internal thread cylinder which is rotationally connected, the surface of the internal thread cylinder is sheathed with a torsion spring which is used for providing torsion for the internal thread cylinder, the side surface of the internal thread cylinder is provided with a clamping rod, the surface of the long rod is provided with a hooking groove corresponding to the clamping rod, and the side surface of the tool apron is provided with a wide-distance threaded rod corresponding to the internal thread cylinder.
As a further optimization scheme of the application, the surface of the second round block is provided with a sliding groove for accommodating the radial sliding of the second guide wheel, a tension spring for pulling the second guide wheel to retract is arranged in the sliding groove, the surfaces of the two sides of the second round block are provided with second through grooves communicated with the sliding groove, and the surface of the first round block is provided with a push rod for pushing up the second guide wheel.
As a further optimization scheme of the application, the second guide wheels are double-end guide wheels, the guide wheels at the two ends are mutually perpendicular in the axial direction, the guide wheels at the inner side are correspondingly arranged with the ejector rod, and the end part of the ejector rod is provided with an inclined plane and a groove corresponding to the guide wheels at the inner side.
As a further optimization scheme of the application, the surfaces of the first guide wheel and the second guide wheel are respectively provided with a rubber contact surface.
The application has the beneficial effects that:
1) According to the application, the first round block and the second round block are arranged and supported at the front end and the rear end of the tool apron, so that the first guide wheel is contacted with one end of the mounting hole which is not subjected to finish boring, and the second guide wheel is contacted with one end which is subjected to finish boring, so that the first round block, the second round block and the output shaft keep high coaxiality, the tool-retracting phenomenon is effectively reduced, and the precision is greatly improved;
2) The automatic switching device is provided with the automatic switching function of the first round block and the second round block, when the tool apron is about to approach the first round block, the limitation of the first round block is automatically released, so that the first round block can be separated from the mounting hole, the normally-contracted second guide wheel on the surface of the second round block can be automatically ejected out, the function of the first guide wheel is replaced, and the switching process is finished at one time without manual midway switching.
Drawings
FIG. 1 is a schematic view of the overall structure of the present application;
FIG. 2 is a cross-sectional view of a first round block and its associated components of the present application;
FIG. 3 is a side cross-sectional view of a first round block of the present application;
FIG. 4 is a side view of a first round block of the present application;
FIG. 5 is a side cross-sectional view of a second round block of the present application;
FIG. 6 is a cross-sectional view taken along line A-A in FIG. 5 in accordance with the present application;
FIG. 7 is a side view of the mounting plate structure of the present application;
in the figure: 1. a feeding mechanism; 2. a main motor; 21. an output shaft; 22. a tool apron; 23. a through hole; 31. a slide bar; 32. a fixing plate; 33. a first round block; 34. a circular ring; 35. a rotating rod; 36. a circular plate; 37. a fixing bolt; 38. a hinge rod; 39. the first guide wheel; 41. a long rod; 42. a hooking groove; 43. an internal thread cylinder; 44. a torsion spring; 45. a clamping rod; 46. a limiting plate; 47. a limiting wheel; 48. a threaded rod; 51. a second round block; 52. a first through groove; 53. a second through slot; 54. the second guide wheel; 55. a tension spring; 56. a push rod; 57. a groove.
Detailed Description
The present application will be described in further detail with reference to the accompanying drawings, wherein it is to be understood that the following detailed description is for the purpose of further illustrating the application only and is not to be construed as limiting the scope of the application, as various insubstantial modifications and adaptations of the application to those skilled in the art can be made in light of the foregoing disclosure.
Example 1
As shown in fig. 1-7, a high-precision boring and milling device for a crankshaft mounting hole comprises a feeding mechanism 1 and a main motor 2 positioned on the surface of the feeding mechanism 1, wherein a cutter holder 22 is arranged on an output shaft 21 of the main motor 2, a first round block 33 is slidably arranged at the end part of the output shaft 21 through a sliding rod 31, a hole corresponding to the sliding rod 31 is arranged at the end part of the output shaft 21, the cross section of the sliding rod 31 and the hole is square, a second round block 51 is fixedly arranged on the circumferential surface of the output shaft 21 close to the end part, a telescopic first guide wheel 39 is arranged on the circumferential surface of the first round block 33, a telescopic second guide wheel 54 is arranged on the circumferential surface of the second round block 51, and the guide wheels are used for being tightly attached to the inner wall of the mounting hole when finely boring the crankshaft mounting hole, and the guide wheels on the surface of each round block are at least four and are uniformly distributed.
The surface of the output shaft 21 is slidably provided with a limiting plate 46, the limiting plate 46 is connected with the first round block 33 through a clamping type long rod 41, the side surface of the limiting plate 46 is provided with a limiting wheel 47, the limiting plate 46 is used for limiting the movement of the first round block 33 in the feeding process of the tool apron 22, the limiting plate 46 is used for being close to the surface of the inlet of the mounting hole to prevent the tool apron 22 from moving in the feeding process of the first round block 33, and meshing lines are arranged on the surfaces of the limiting plate 46 and the output shaft 21, so that the limiting plate 46 can only slide relative to the output shaft 21.
In the process of finely boring the mounting hole, the feeding mechanism 1 is operated to enable the first round block 33 to enter the mounting hole, then the first guide wheel 39 is extended from the other side of the mounting hole to be abutted against the inner wall of the mounting hole, the round ring 34 is arranged in the first round block 33, the round ring 34 is connected with the first guide wheel 39 through the hinge rod 38, the rotating rod 35 with meshing stripes for driving the round ring 34 to rotate is arranged in the first round block 33, the rotating rod 35 extends to the outside of the first round block 33 through the circular plate 36, the circular plate 36 is provided with the fixing bolt 37 for self fixing, the circular plate 36 is rotated to enable the circular plate 36 to drive the round ring 34 to rotate, the first guide wheel 39 is extruded through the hinge rod 38 to be abutted against the periphery of the mounting hole, and then the circular plate 36 is fixed through the fixing bolt 37 to prevent rotation.
When the tool apron 22 is about to reach the first round block 33, the second guide wheel 54 is not ejected, the second round block 51 is convenient to enter the mounting hole, a first through groove 52 for the long rod 41 to pass through is formed in the surface of the second round block 51, a plurality of through holes 23 parallel to the axial direction are formed in the surface of the tool apron 22, a fixed plate 32 is arranged on one side surface of the first round block 33, which is close to the sliding rod 31, an internal thread cylinder 43 in rotary connection is arranged on the surface of the fixed plate 32, a torsion spring 44 for providing torsion for the internal thread cylinder 43 is sleeved on the surface of the internal thread cylinder 43, a clamping rod 45 is arranged on the side surface of the internal thread cylinder 43, a hook groove 42 corresponding to the clamping rod 45 is formed in the surface of the long rod 41, a wide-distance threaded rod 48 corresponding to the internal thread cylinder 43 is arranged on the side surface of the tool apron 22, and when the tool apron 22 is about to be close to the first round block 33, connection between the first round block 33 and the limiting plate 46 is required to be released, the first round block 33 is convenient to move out of the mounting hole, specifically, the wide-distance 48 passes through the wide-distance 48 to enter the internal thread cylinder 43, rotate, the internal thread cylinder 43 is driven to rotate, and the clamping rod 45, and the wide-distance rod 45 are released.
The surface of the second round block 51 is provided with a sliding groove for accommodating radial sliding of the second guide wheel 54, a tension spring 55 for pulling the second guide wheel 54 to retract is arranged in the sliding groove, the surfaces of two sides of the second round block 51 are provided with second through grooves 53 communicated with the sliding groove, the surface of the first round block 33 is provided with a push rod 56 for pushing up the second guide wheel 54, the second guide wheel 54 is a double-end guide wheel, the guide wheels at two ends are mutually perpendicular in axial direction, the guide wheels at the inner side are correspondingly arranged with the push rod 56, and the end part of the push rod 56 is provided with an inclined surface and a groove 57 corresponding to the guide wheels at the inner side.
When the first round block 33 is about to be separated from the mounting hole, the second round block 51 needs to take over the function of the first round block 33, so that when the tool holder 22 is about to approach the first round block 33, the ejector rod 56 passes through the through hole 23 and enters the second through groove 53, and the second guide wheel 54 is ejected through the inclined plane of the end part of the ejector rod, wherein the purpose of the second guide wheel 54 is that of a double-head wheel: the guide wheels in contact with the inclined surfaces of the ejector rods 56 can enable the second guide wheels 54 to be jacked up more easily, and finally the guide wheels on the inner sides of the second guide wheels 54 are clamped in the grooves 57, and the guide wheels on the outer sides replace the supporting task of the first guide wheels 39.
The surfaces of the first guide wheel 39 and the second guide wheel 54 are respectively provided with a rubber contact surface for providing deformation elasticity and supporting force when the inner wall of the mounting hole is uneven.
The implementation mode specifically comprises the following steps: 1) Positioning the first round block 33, firstly, feeding the first round block 33 into a mounting hole through a feeding mechanism 1, then rotating a round plate 36 from the other side of the mounting hole, enabling the round plate 36 to drive a round ring 34 to rotate, extruding a first guide wheel 39 through a hinging rod 38 to enable the first guide wheel to abut against the periphery of the mounting hole, and then fixing the round plate 36 through a fixing bolt 37 to prevent rotation;
2) The main motor 2 is started to finish boring, the tool apron 22 rotates at a high speed, and the feeding mechanism 1 moves the tool apron 22 into the mounting hole, and the limiting plate 46 contacts with the outer wall of the mounting hole, so that the first round block 33 cannot axially move, and the sliding rod 31 and the end part of the output shaft 21 slide with each other.
3) When the tool apron 22 approaches the first round block 33, the wide-distance threaded rod 48 enters the internal thread cylinder 43 to rotate the internal thread cylinder 43 to drive the clamping rod 45 to lift up and release the long rod 41, meanwhile, the ejector rod 56 passes through the through hole 23 to enter the second through groove 53, and the second guide wheel 54 is ejected out through the inclined plane of the surface of the ejector rod 56 to enable the second guide wheel 54 to replace the first guide wheel 39, and then the tool apron 22 is continuously fed in the rotating process to finish fine boring.
The foregoing examples illustrate only a few embodiments of the application and are described in detail herein without thereby limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application.
Claims (6)
1. The utility model provides a bent axle mounting hole high accuracy boring and milling device, includes feed mechanism (1) and is located main motor (2) on feed mechanism (1) surface, be provided with blade holder (22) on output shaft (21) of main motor (2), its characterized in that: the end part of the output shaft (21) is provided with a first round block (33) in a sliding manner through a sliding rod (31), the circumferential surface of the output shaft (21) close to the end part is fixedly provided with a second round block (51), the circumferential surface of the first round block (33) is provided with a telescopic first guide wheel (39), and the circumferential surface of the second round block (51) is provided with a telescopic second guide wheel (54) which is used for being tightly attached to the inner wall of a mounting hole when a crankshaft mounting hole is finely bored;
the surface of the output shaft (21) is slidably provided with a limiting plate (46), the limiting plate (46) is connected with the first round block (33) through a clamping long rod (41), the side surface of the limiting plate (46) is provided with a limiting wheel (47), the limiting plate (46) is used for limiting the movement of the first round block (33) in the feeding process of the tool apron (22), wherein the second guide wheel (54) is in a normal shrinkage state, and the second guide wheel (54) automatically stretches out when the tool apron (22) is close to the first round block (33);
the surface of second circle piece (51) is provided with first logical groove (52) that supplies stock (41) to pass through, the surface of blade holder (22) is provided with a plurality of through-hole (23) parallel with the axial, one side surface that first circle piece (33) are close to slide bar (31) is provided with fixed plate (32), the surface of fixed plate (32) is provided with internal thread section of thick bamboo (43) of swivelling joint, the surface of internal thread section of thick bamboo (43) has cup jointed torsion spring (44) that are used for providing torsion for internal thread section of thick bamboo (43), and internal thread section of thick bamboo (43) side surface is provided with clamping rod (45), the surface of stock (41) is provided with collude groove (42) that correspond with clamping rod (45), the side surface of blade holder (22) is provided with wide range (48) threaded rod that corresponds with internal thread section of thick bamboo (43).
2. The high-precision boring and milling device for the crankshaft mounting hole according to claim 1, wherein: the inside of first circle piece (33) is provided with ring (34), be connected through articulated pole (38) between ring (34) and first guide pulley (39), the inside of first circle piece (33) is provided with has meshing stripe and is used for driving rotatory bull stick (35) of ring (34), bull stick (35) extend to first circle piece (33) outside through plectane (36), plectane (36) are provided with the mounting and are used for self-fixation.
3. The high-precision boring and milling device for the crankshaft mounting hole according to claim 2, wherein: the fixing piece is a fixing bolt (37), a threaded hole corresponding to the first fixing bolt (37) is formed in the outer surface of the first round block (33), and an arc-shaped groove corresponding to the first fixing bolt (37) is formed in the surface of the round plate (36).
4. The high-precision boring and milling device for the crankshaft mounting hole according to claim 1, wherein: the surface of second circle piece (51) is provided with the spout that holds radial slip of second guide pulley (54), and the spout is inside to be provided with and is used for pulling extension spring (55) that second guide pulley (54) retracted, the both sides surface of second circle piece (51) is provided with second through groove (53) with spout intercommunication, the surface of first circle piece (33) is provided with ejector pin (56) with second guide pulley (54) jack-up.
5. The high-precision boring and milling device for the crankshaft mounting hole of claim 4, wherein: the second guide wheels (54) are double-end guide wheels, the guide wheels at the two ends are axially perpendicular to each other, the guide wheels at the inner side are correspondingly arranged with the ejector rod (56), and the end part of the ejector rod (56) is provided with an inclined plane and a groove (57) corresponding to the guide wheels at the inner side.
6. The high-precision boring and milling device for the crankshaft mounting hole according to claim 1, wherein: rubber contact surfaces are arranged on the surfaces of the first guide wheel (39) and the second guide wheel (54).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210768635.0A CN115041967B (en) | 2022-07-01 | 2022-07-01 | High-precision boring and milling device for crankshaft mounting hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210768635.0A CN115041967B (en) | 2022-07-01 | 2022-07-01 | High-precision boring and milling device for crankshaft mounting hole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115041967A CN115041967A (en) | 2022-09-13 |
| CN115041967B true CN115041967B (en) | 2023-09-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210768635.0A Active CN115041967B (en) | 2022-07-01 | 2022-07-01 | High-precision boring and milling device for crankshaft mounting hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115041967B (en) |
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| US2202111A (en) * | 1936-07-22 | 1940-05-28 | Rudolf Nolle | Machine for grinding the crank pins of crankshafts |
| US3513517A (en) * | 1967-08-03 | 1970-05-26 | Gen Per L Ind Metallurg Emecca | Machining of large hollow cylindrical workpieces |
| DE102004043404A1 (en) * | 2004-09-08 | 2006-03-09 | Volkswagen Ag | Method for processing rotary parts |
| CN101817097A (en) * | 2009-12-17 | 2010-09-01 | 浙江红马铸造有限公司 | Horizontal rotary tool rest device |
| CN202804208U (en) * | 2012-07-27 | 2013-03-20 | 广东联塑科技实业有限公司 | Pipe profiling cutter |
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| CN207615698U (en) * | 2017-12-15 | 2018-07-17 | 广东盛邦机电工程有限公司 | A kind of special borer of thermal power plant high pressure bypass valve |
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| CN108907721A (en) * | 2018-07-26 | 2018-11-30 | 绍兴上虞华源通用机械有限公司 | A kind of valve rod Semi-automatic flat surface lathe |
| CN214263923U (en) * | 2020-12-18 | 2021-09-24 | 广州品胜机械科技股份有限公司 | MUP module fine-tuning fine boring cutter |
| WO2021253514A1 (en) * | 2020-06-17 | 2021-12-23 | 南京卓迈机械有限公司 | Tool holder clamping mechanism |
| CN215431577U (en) * | 2021-09-08 | 2022-01-07 | 霍山嘉远智能制造有限公司 | Shock attenuation inner deep hole boring cutter |
| WO2022011844A1 (en) * | 2020-07-16 | 2022-01-20 | 泉州市海恩德机电科技发展有限公司 | Combination boring machine and boring hole machining method |
| CN215998742U (en) * | 2021-09-14 | 2022-03-11 | 苏州市职业大学 | Turning and boring multi-cutter structure |
| CN114393226A (en) * | 2022-01-27 | 2022-04-26 | 深圳市毅克利刀具有限公司 | Double-blade inner hole boring cutter for machine tool |
| CN216541928U (en) * | 2021-11-23 | 2022-05-17 | 江西赛宇精密机械有限公司 | Boring and milling cutter with high-precision positioning and connecting structure |
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2022
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2202111A (en) * | 1936-07-22 | 1940-05-28 | Rudolf Nolle | Machine for grinding the crank pins of crankshafts |
| US3513517A (en) * | 1967-08-03 | 1970-05-26 | Gen Per L Ind Metallurg Emecca | Machining of large hollow cylindrical workpieces |
| DE102004043404A1 (en) * | 2004-09-08 | 2006-03-09 | Volkswagen Ag | Method for processing rotary parts |
| CN101817097A (en) * | 2009-12-17 | 2010-09-01 | 浙江红马铸造有限公司 | Horizontal rotary tool rest device |
| CN202804208U (en) * | 2012-07-27 | 2013-03-20 | 广东联塑科技实业有限公司 | Pipe profiling cutter |
| CN203343755U (en) * | 2013-07-18 | 2013-12-18 | 山东三星机械制造有限公司 | Big shaft deep hole precision boring device |
| CN207615698U (en) * | 2017-12-15 | 2018-07-17 | 广东盛邦机电工程有限公司 | A kind of special borer of thermal power plant high pressure bypass valve |
| CN207952660U (en) * | 2018-03-16 | 2018-10-12 | 西安鑫旺矿业设备有限公司 | A kind of boring rolling gang tool |
| CN108907721A (en) * | 2018-07-26 | 2018-11-30 | 绍兴上虞华源通用机械有限公司 | A kind of valve rod Semi-automatic flat surface lathe |
| WO2021253514A1 (en) * | 2020-06-17 | 2021-12-23 | 南京卓迈机械有限公司 | Tool holder clamping mechanism |
| WO2022011844A1 (en) * | 2020-07-16 | 2022-01-20 | 泉州市海恩德机电科技发展有限公司 | Combination boring machine and boring hole machining method |
| CN214263923U (en) * | 2020-12-18 | 2021-09-24 | 广州品胜机械科技股份有限公司 | MUP module fine-tuning fine boring cutter |
| CN215431577U (en) * | 2021-09-08 | 2022-01-07 | 霍山嘉远智能制造有限公司 | Shock attenuation inner deep hole boring cutter |
| CN215998742U (en) * | 2021-09-14 | 2022-03-11 | 苏州市职业大学 | Turning and boring multi-cutter structure |
| CN216541928U (en) * | 2021-11-23 | 2022-05-17 | 江西赛宇精密机械有限公司 | Boring and milling cutter with high-precision positioning and connecting structure |
| CN114393226A (en) * | 2022-01-27 | 2022-04-26 | 深圳市毅克利刀具有限公司 | Double-blade inner hole boring cutter for machine tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115041967A (en) | 2022-09-13 |
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