CN110976998A - Novel circumference shaping milling cutter frame of adjustable angle - Google Patents
Novel circumference shaping milling cutter frame of adjustable angle Download PDFInfo
- Publication number
- CN110976998A CN110976998A CN201911318800.7A CN201911318800A CN110976998A CN 110976998 A CN110976998 A CN 110976998A CN 201911318800 A CN201911318800 A CN 201911318800A CN 110976998 A CN110976998 A CN 110976998A
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- cutter
- fluted disc
- mounting seat
- base
- milling cutter
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- 238000003801 milling Methods 0.000 title claims abstract description 57
- 238000007493 shaping process Methods 0.000 title claims description 3
- 239000002245 particle Substances 0.000 claims abstract description 39
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 23
- 239000010959 steel Substances 0.000 claims abstract description 23
- 230000007704 transition Effects 0.000 claims abstract description 17
- 238000013461 design Methods 0.000 claims abstract description 7
- 230000009471 action Effects 0.000 claims abstract description 6
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 7
- 239000000758 substrate Substances 0.000 abstract description 6
- 238000012545 processing Methods 0.000 description 5
- 201000010099 disease Diseases 0.000 description 4
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C9/00—Details or accessories so far as specially adapted to milling machines or cutter
-
- 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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
The invention relates to a novel angle-adjustable circumferential forming milling cutter frame which comprises a base with an inner fluted disc, a transition sleeve and a cutter particle mounting seat with an outer fluted disc, wherein the base with the inner fluted disc is uniformly arranged in the circumferential direction of a cutter head substrate through a reasonable interface design, the cutter particle mounting seat with the outer fluted disc and the base with the inner fluted disc are arranged in a tooth meshing manner, the transition sleeve is arranged between the base with the inner fluted disc and the cutter particle mounting seat with the outer fluted disc, and the relative positions of the cutter head base and a cutter frame assembly are locked under the action of screws. At least two rows of cutting tool particles with the same or different numbers are arranged on the tool particle mounting seat with the external fluted disc, and the cutting tool particles are designed according to the forming profile requirement. The angle of the cutter mounting seat with the external fluted disc can be adjusted through the meshing of the fluted disc teeth, the milling process requirements of different rail bottom slopes and matching of different wheel-rail relation profiles are met, different angles can be adjusted by the left cutter frame assembly and the right cutter frame assembly, and therefore asymmetric milling of different damages of left and right strands of the steel rail and optimal maintenance of different damages of different road sections of the steel rail are achieved.
Description
Technical Field
The invention relates to the technical field of railway maintenance machinery, in particular to a novel angle-adjustable circumferential forming milling cutter frame.
Background
The steel rail is stressed by long-term transverse and vertical pressure to generate fatigue, so that the steel rail is deformed, the profile is transversely widened, and fat edges and other surface defects are formed. The steel rail is repaired by adopting a steel rail milling and grinding vehicle and milling through a milling cutter disc on the milling and grinding vehicle. In the course of the work, damaged phenomenon often appears in the blade, need demolish whole disc base member and change when changing the new blade among the prior art, the precision of whole milling and grinding car reduces after the dismouting, the inefficiency of dismouting.
For example, the CN102292182A disc milling cutter and cutting elements are technically characterized in that cutting blades are uniformly distributed on the circumference of a disc base body, the milling process of a steel rail is realized, the forming scheme of any geometric angle of a cutting edge is possible under the condition that the cutter has the highest durability as possible, when an individual cutting edge is damaged, the blade can be replaced, and the cutter can greatly reduce or avoid harmful vibration which is easy to occur to the disc milling cutter. However, such technical features are that the blade is directly mounted on the base body, when the individually damaged blade needs to be replaced, the disc base body and the blade need to be integrally detached from the equipment, the cutting edge of the blade is adjusted or a new blade is replaced at the damaged position of the cutting edge, and the position degree of the replaced cutting blade is redetected and adjusted, so as to ensure that the circumferential forming cutting meets the requirements of the profile size of the specifically formed metal blank. The workload of disassembly, assembly and replacement is large; when the overall dimension of the disc base body is larger, instruments for re-detecting and adjusting the position degree of the replaced cutting blade are also larger, and the detection and debugging work is complicated; and the replacement of the milling disc occupies a larger space, particularly for online forming equipment, the replacement, detection and adjustment work of the worn blade leads to the complex design of the forming equipment, the equipment is used for storing cutters, the size of the detection space is larger, the cost of the equipment is increased, and the like.
For another example, the granted publication No. CN104439474B is a circumferential-shaped tool-holder type milling assembly, which is technically characterized in that circumferential-shaped tool holders are uniformly distributed on the circumference of a disc substrate, and blades are arranged on the tool holders. Therefore, the cutter frame is disassembled and assembled, the individually damaged blade or the new blade on the cutter frame is replaced, and the circumferential forming cutting blade can meet the requirement of the contour dimension of a specific forming metal blank on the technical convenience for disassembly, assembly and maintenance by re-detecting and adjusting the position degree of the replaced blade based on the cutter frame; and the processing expansibility is strong. However, the technology can only adapt to one rail bottom slope after the tool rest is machined and formed; and when the curve section is milled, the contact surface of the rail can be changed according to the difference of the radius of the curve, the tool rest can only machine and form a single profile, and the profile of the machined steel rail can not really improve the rail relationship according to the requirement.
Disclosure of Invention
In order to solve the technical defects in the prior art, the invention aims to provide a novel angle-adjustable circumferential forming milling cutter frame assembly, wherein a cutter frame is divided into 3 assemblies, and a fluted disc is meshed to realize that a cutter particle mounting seat is arranged in a circumferential direction at a ratio of 1: the rail bottom slope of 40 rotates +/-3 degrees as a reference, so that the rotation angle of the tool rest assembly is adapted to the milling process requirements of different rail bottom slopes and matching profiles with different wheel-rail relations. The left and right tool rest components rotate by different angles to realize the asymmetric milling of the left and right strand steel rails. The tool rest assembly is designed to be detachably connected with the cutter head, the tool rest is convenient to maintain and replace by dismounting the tool rest assembly, the tool grains arranged on the tool rest are designed to be detachable tool grains, cutting edge adjustment or blade replacement of individual cutting edge damage parts is carried out, and the tool rest assembly is convenient and quick; in addition, the tool rest assembly is designed to be consistent in interface with the original tool rest assembly, and interchangeability can be achieved. In order to achieve the design purpose, the scheme adopted by the invention is as follows:
in order to achieve the design purpose, the scheme adopted by the invention is as follows:
the invention provides a novel angle-adjustable circumferential forming milling cutter frame, which comprises a cutter frame assembly, a cutter head substrate, a base with an internal fluted disc, a transition sleeve and a cutter particle mounting seat with the external fluted disc, wherein the base with the internal fluted disc is uniformly arranged in the circumferential direction of the cutter head substrate through reasonable interface design; the cutter particle mounting seat with the external fluted disc is meshed with the base 7 with the internal fluted disc through teeth; the transition sleeve is arranged between the base with the inner fluted disc and the cutter particle mounting seat with the outer fluted disc, and the relative positions of the cutter head base and the cutter rest assembly are locked under the action of the screws.
The cutter frame assembly is disassembled and assembled, so that the cutting edge of a damaged part of a single cutting edge on the cutter frame can be adjusted or replaced conveniently and quickly; the knife rest component is designed to be consistent with the interface of the original knife rest component, and interchangeability can be realized. The milling cutter frame can adjust the angle of the cutter particle mounting seat with the external fluted disc through the meshing of the fluted disc teeth, thereby realizing the milling process requirements of adapting to different rail bottom slopes and matching different wheel-rail relation profiles.
Preferably, the cutter particle mounting seat with the external fluted disc is fixed with the base with the internal fluted disc through a transition sleeve and teeth; the base with the inner fluted disc is fixed with the cutter head matrix through a screw and a transition sleeve. The base with the inner fluted disc and the cutter particle mounting seat with the outer fluted disc are mounted in a meshing way through teeth; the angle of the cutter particle mounting seat with the external fluted disc can be adjusted through the meshing of the fluted disc teeth, so that the requirements of the milling process for adapting to different rail bottom slopes and matching different wheel-rail relation profiles are met. The transition sleeve is arranged between the base with the inner fluted disc and the cutter particle mounting seat with the outer fluted disc, and the relative positions of the cutter head substrate and the cutter rest assembly are locked under the action of the fastening piece.
In any of the above embodiments, preferably, the insert mounting base with the external toothed disk is engaged by teeth, and the axial length of the insert mounting base in the circumferential direction is 1: and the rail bottom slope of 40 rotates +/-3 degrees as a reference, so that the requirements of the milling process for adapting to different rail bottom slopes and matching different wheel-rail relationship profiles are met.
In any of the above schemes, preferably, the two groups of tool rest assemblies are respectively arranged on the two steel rails; the two groups of tool rest assemblies rotate at different angles in the circumferential direction, so that asymmetric milling of different diseases of the left strand and the right strand of the steel rail is realized, and optimal maintenance of different diseases of different road sections of the steel rail can also be realized.
In any of the above aspects, preferably, a milling cutter is provided on the tool rest assembly, and an adjustment angle of the milling cutter is 1: and 40, matching different rail bottom slopes and different profile relations, realizing the profile requirement processing of different damaged steel rails, and also realizing the asymmetric milling processing of two steel rails.
In any of the above solutions, it is preferable that the tool holder assembly is detachably connected to the cutter head base body 1 through a fastener 5, so that tool holder replacement and maintenance are facilitated.
In any of the above schemes, preferably, the cutter head base is a disc-shaped cutter head, and a plurality of concave embedding grooves, fastening pieces and blocking pieces for preventing the fastening pieces from loosening are arranged in the sideline area of the cutter head base; the tool rest assembly is detachably connected with the cutter head base body 1 through a fastener 5.
In any of the above schemes, preferably, the cutting insert mounting seat is provided with more than or equal to two rows of cutting inserts. The cutting knife particles are the same or different in number and are designed according to the forming profile requirements. The cutter particles arranged on the cutter particle mounting seat with the external fluted disc are meshed through the fluted discs to adjust the angle, so that the processing range on the steel rail is changed.
The novel angle-adjustable circumference forming milling cutter frame has the following advantages:
1. through dismouting knife rest subassembly to realize cutting edge adjustment or blade change, convenient and fast to the individual cutting edge damage on the knife rest.
2. The knife rest component is designed to be consistent with the interface of the original knife rest component, and interchangeability can be realized.
3. The milling cutter frame can adjust the angle of the cutter particle mounting seat with the external fluted disc through the meshing of the fluted disc teeth, thereby realizing the milling process requirements of adapting to different rail bottom slopes and matching different wheel-rail relation profiles.
4. The transition sleeve is tightened through the screw, so that the tool rest component and the base body are fixed.
5. The angle of the cutter particle mounting seat with the external fluted disc can be adjusted through the meshing of the fluted disc teeth, so that the requirements of the milling process for adapting to different rail bottom slopes and matching different wheel-rail relation profiles are met.
Drawings
Fig. 1 is a schematic structural view of the assembly of the novel angle-adjustable circumferential milling cutter holder and the disc base according to the invention.
Fig. 2 is a schematic structural view of a preferred embodiment of the novel adjustable angle peripheral milling cutter holder according to the present invention.
Fig. 3 is a state view of the preferred embodiment of the novel adjustable angle peripheral milling cutter head of fig. 2 in accordance with the present invention.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, from which other embodiments can be derived by a person skilled in the art without inventive effort.
As shown in fig. 1 and fig. 2, the novel angle-adjustable circumferential forming milling cutter holder according to the invention is assembled with a disc base body. The novel angle-adjustable circumferential forming milling cutter frame comprises a cutter frame assembly 3, a cutter head base body 1, a base with an inner fluted disc, a transition sleeve 8 and a cutter particle mounting seat 9 with the outer fluted disc, wherein the base 7 with the inner fluted disc is uniformly arranged in the circumferential direction of the cutter head base body 1 through reasonable interface design; the cutter particle mounting seat 9 with the external fluted disc is meshed with the base 7 with the internal fluted disc through teeth 10; the transition sleeve 8 is arranged between the base 7 with the inner fluted disc and the cutter granule mounting seat 9 with the outer fluted disc, and locks the relative positions of the cutter head base 1 and the cutter rest assembly 3 under the action of the screw 5.
The cutter frame assembly is disassembled and assembled, so that the cutting edge of a damaged part of a single cutting edge on the cutter frame can be adjusted or replaced conveniently and quickly; the knife rest component is designed to be consistent with the interface of the original knife rest component, and interchangeability can be realized. The milling cutter frame can adjust the angle of the cutter particle mounting seat with the external fluted disc through the meshing of the fluted disc teeth, thereby realizing the milling process requirements of adapting to different rail bottom slopes and matching different wheel-rail relation profiles.
In this embodiment, the cutting insert mounting seat 9 with the external toothed disc is fixed to the base 7 with the internal toothed disc through the transition sleeve 8 and the teeth 10; the base 7 with the inner fluted disc is fixed with the cutter head matrix 1 through a screw 5 and a transition sleeve 8. The base 7 with the inner fluted disc is meshed with the cutter particle mounting seat 9 with the outer fluted disc through teeth 10; the angle of the cutter particle mounting seat with the external fluted disc can be adjusted through the meshing of the fluted disc teeth, so that the requirements of the milling process for adapting to different rail bottom slopes and matching different wheel-rail relation profiles are met. The transition sleeve 8 is arranged between the base with the inner fluted disc and the cutter particle mounting seat with the outer fluted disc, and the relative positions of the cutter head substrate and the cutter rest assembly are locked under the action of the fastening piece.
In the present embodiment, the insert mounting seat 9 with the external toothed disk is engaged by the teeth 10 in a circumferential direction in a ratio of 1: and the rail bottom slope of 40 rotates +/-3 degrees as a reference, so that the requirements of the milling process for adapting to different rail bottom slopes and matching different wheel-rail relationship profiles are met.
In this embodiment, the two groups of tool rest assemblies 3 are respectively arranged on two steel rails; the two groups of tool rest assemblies 3 rotate at different angles in the circumferential direction, so that asymmetric milling of different diseases of the left strand and the right strand of the steel rail is realized, and optimal maintenance of different diseases of different road sections of the steel rail can also be realized.
In the embodiment, the tool rest assembly 3 is detachably connected with the cutter head base body 1 through a fastener 5, so that tool rest replacement and maintenance are facilitated.
In the embodiment, the cutter head base body 1 is a disc-shaped cutter head, and a plurality of concave embedding grooves 2, fastening pieces 5 and blocking pieces 6 for preventing the fastening pieces 5 from loosening are arranged in the sideline area of the cutter head base body 1; the tool rest component 3 is detachably connected with the cutter head base body 1 through a fastener 5.
In this embodiment, two or more rows of cutting inserts 4 are disposed on the insert mounting seat 9. The cutting knife particles are the same or different in number and are designed according to the forming profile requirements. The cutter particles arranged on the cutter particle mounting seat with the external fluted disc are meshed through the fluted discs to adjust the angle, so that the processing range on the steel rail is changed.
Referring finally to fig. 3, there is shown a state diagram of the preferred embodiment of the novel adjustable angle peripheral milling cutter head of fig. 2.
The cutter particles 4 arranged on the cutter particle mounting seat 9 with the external fluted disc are meshed through the fluted discs to adjust the angle, so that the machining range on the steel rail 11 is changed, and as shown in fig. 3, a milling cutter is arranged on the cutter rest component 3, and the angle of the milling cutter 1:40 can be adjusted within a certain range, so that different rail bottom slopes are matched, different profile relations and profiles of different rails are matched, the profile requirements of different damaged steel rails are met, and the asymmetrical milling machining of the two steel rails can also be realized.
It will be understood by those skilled in the art that the novel adjustable angle peripheral milling cutter holder of the present invention includes any combination of the elements described herein. These combinations are not described in detail herein for the sake of brevity and clarity, but the scope of the invention, which is defined by any combination of the parts constructed in this specification, will become apparent after review of this specification.
Claims (8)
1. The utility model provides a novel adjustable angle's circumference shaping milling cutter frame, includes knife rest subassembly (3) and blade disc base member (1), its characterized in that: the cutter is characterized by further comprising a base (7) with an inner fluted disc, a transition sleeve (8) and a cutter particle mounting seat (9) with the outer fluted disc, wherein the base (7) with the inner fluted disc is uniformly arranged in the circumferential direction of the cutter base body (1) through reasonable interface design; the cutter particle mounting seat (9) with the external fluted disc is meshed with the base (7) with the internal fluted disc through teeth (10); the transition sleeve (8) is arranged between the base (7) with the inner fluted disc and the cutter particle mounting seat (9) with the outer fluted disc, and the relative positions of the cutter head base (1) and the cutter rest assembly (3) are locked under the action of the screw (5).
2. The novel adjustable angle peripheral milling cutter holder of claim 1, wherein: a cutter particle mounting seat (9) with an external fluted disc is fixed with a base (7) with an internal fluted disc through a transition sleeve (8) and teeth (10); the base (7) with the inner fluted disc is fixed with the cutter head matrix (1) through a screw (5) and a transition sleeve (8).
3. The novel adjustable angle peripheral milling cutter holder of claim 1 or 2, wherein: the cutter particle mounting seat (9) with the external fluted disc is meshed through teeth (10), and the diameter of the cutter particle mounting seat is 1: the rail bottom slope of 40 is rotated +/-3 degrees as a reference.
4. The novel adjustable angle peripheral milling cutter holder of claim 1, wherein: the two groups of tool rest assemblies (3) are respectively arranged on the two steel rails; the two groups of tool rest components (3) rotate at different angles in the circumferential direction.
5. The novel adjustable angle peripheral milling cutter holder of claim 1 or 4, wherein: the tool rest assembly (3) is detachably connected with the cutter head base body (1) through a fastener (5).
6. The novel adjustable angle peripheral milling cutter holder of claim 1 or 4, wherein: a milling cutter is arranged on the tool rest component (3), and the adjustment angle of the milling cutter is 1: 40.
7. the novel adjustable angle peripheral milling cutter holder of claim 1, wherein: the cutter head base body (1) is a disc-shaped cutter head, and a plurality of concave embedding grooves (2), fastening pieces (5) and blocking pieces (6) for preventing the fastening pieces (5) from loosening are arranged in the sideline area of the cutter head base body (1); the tool rest assembly (3) is detachably connected with the cutter head base body (1) through a fastener (5).
8. The novel adjustable angle peripheral milling cutter holder of claim 1 or 2, wherein: the cutter particle mounting seat (9) is provided with more than or equal to two rows of cutting cutter particles (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911318800.7A CN110976998A (en) | 2019-12-19 | 2019-12-19 | Novel circumference shaping milling cutter frame of adjustable angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911318800.7A CN110976998A (en) | 2019-12-19 | 2019-12-19 | Novel circumference shaping milling cutter frame of adjustable angle |
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| Publication Number | Publication Date |
|---|---|
| CN110976998A true CN110976998A (en) | 2020-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911318800.7A Pending CN110976998A (en) | 2019-12-19 | 2019-12-19 | Novel circumference shaping milling cutter frame of adjustable angle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022022323A1 (en) * | 2020-07-31 | 2022-02-03 | 中国铁建高新装备股份有限公司 | Circumferential forming cutter holder-type milling assembly having variable profile angles |
| RU2811299C1 (en) * | 2020-07-31 | 2024-01-11 | Кркк Хай-Тек Эквипмент Корпорейшн Лимитед | Milling device with tool holders designed for forming circle and having adjustable contour angle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2659584A1 (en) * | 1990-03-14 | 1991-09-20 | Levy Marcel | Machine for reshaping worn railway rails |
| CN103015279A (en) * | 2013-01-11 | 2013-04-03 | 成都市新筑路桥机械股份有限公司 | High-speed grinding train for rails |
| CN104439474A (en) * | 2013-09-23 | 2015-03-25 | 昆明中铁大型养路机械集团有限公司 | Circular forming knife rest type milling assembly |
| CN108480732A (en) * | 2018-02-23 | 2018-09-04 | 中国神华能源股份有限公司 | Change the method for the contour shape in the cross section of milling cutter and its cutterhead and rail |
| CN108515220A (en) * | 2018-05-24 | 2018-09-11 | 常州华铭自动化科技有限公司 | A kind of rail lip milling attachment |
| CN212419799U (en) * | 2019-12-19 | 2021-01-29 | 中国铁建高新装备股份有限公司 | Novel circumference shaping milling cutter frame of adjustable angle |
-
2019
- 2019-12-19 CN CN201911318800.7A patent/CN110976998A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2659584A1 (en) * | 1990-03-14 | 1991-09-20 | Levy Marcel | Machine for reshaping worn railway rails |
| CN103015279A (en) * | 2013-01-11 | 2013-04-03 | 成都市新筑路桥机械股份有限公司 | High-speed grinding train for rails |
| CN104439474A (en) * | 2013-09-23 | 2015-03-25 | 昆明中铁大型养路机械集团有限公司 | Circular forming knife rest type milling assembly |
| CN108480732A (en) * | 2018-02-23 | 2018-09-04 | 中国神华能源股份有限公司 | Change the method for the contour shape in the cross section of milling cutter and its cutterhead and rail |
| CN108515220A (en) * | 2018-05-24 | 2018-09-11 | 常州华铭自动化科技有限公司 | A kind of rail lip milling attachment |
| CN212419799U (en) * | 2019-12-19 | 2021-01-29 | 中国铁建高新装备股份有限公司 | Novel circumference shaping milling cutter frame of adjustable angle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022022323A1 (en) * | 2020-07-31 | 2022-02-03 | 中国铁建高新装备股份有限公司 | Circumferential forming cutter holder-type milling assembly having variable profile angles |
| RU2811299C1 (en) * | 2020-07-31 | 2024-01-11 | Кркк Хай-Тек Эквипмент Корпорейшн Лимитед | Milling device with tool holders designed for forming circle and having adjustable contour angle |
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Application publication date: 20200410 |
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