CN112548743A - High-efficient beveler - Google Patents
High-efficient beveler Download PDFInfo
- Publication number
- CN112548743A CN112548743A CN202011435330.5A CN202011435330A CN112548743A CN 112548743 A CN112548743 A CN 112548743A CN 202011435330 A CN202011435330 A CN 202011435330A CN 112548743 A CN112548743 A CN 112548743A
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- CN
- China
- Prior art keywords
- plate
- face
- threaded
- chamfering machine
- threaded rod
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
- B24B9/04—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of metal, e.g. skate blades
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/20—Drives or gearings; Equipment therefor relating to feed movement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/22—Equipment for exact control of the position of the grinding tool or work at the start of the grinding operation
Abstract
The invention relates to the technical field of chamfering machines, in particular to a high-efficiency chamfering machine which comprises an operating table, wherein a slide rail is arranged on one side of the upper end surface of the operating table, a vertical plate is arranged on the other side of the upper end surface of the operating table, a slide block is in sliding fit in a slide groove of the slide rail, an extrusion plate and a lower roller support are arranged on the upper end surface of the slide block, a connecting plate is vertically arranged on one side of the lower roller support, a first threaded rod and an upper roller support are screwed in the middle of a top plate horizontally arranged on one side of the upper portion of the connecting plate, the upper portion of the vertical plate is an arc-shaped portion, a roll shaft is rotatably arranged in the middle of the vertical plate, a reinforcing rib plate is fixedly inserted in. When the high-efficiency chamfering machine is used, the chamfering angle can be simply, conveniently and accurately adjusted, so that the chamfering working efficiency is greatly improved.
Description
Technical Field
The invention relates to the technical field of chamfering machines, in particular to a high-efficiency chamfering machine.
Background
The chamfering machine is a small-sized precise machine tool which is specially used for manufacturing dies, hardware machinery, machine tool, hydraulic parts, valves and the like, chamfering of textile machinery and deburring machined products such as milling and planing, and the adoption of rapid machine chamfering is a trend of mechanical industry development.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a high-efficiency chamfering machine.
In order to achieve the purpose, the invention adopts the following technical scheme:
a high-efficiency chamfering machine comprises an operating platform, wherein a slide rail is arranged on one side of the upper end face of the operating platform, a vertical plate is arranged on the other side of the upper end face of the operating platform, a slide block is in sliding fit in a slide groove of the slide rail, an extrusion plate is arranged on the upper end face of the slide block, a lower roller support is fixedly installed on the upper end face of the extrusion plate, a connecting plate is vertically arranged on one side of the lower roller support, a top plate is horizontally arranged on one side of the upper portion of the connecting plate, a threaded through hole is formed in the middle of the top plate, a first threaded rod is screwed in the threaded through hole, an upper roller support is arranged on the lower portion of the vertical portion of the first threaded rod, an arc-shaped portion is arranged on the upper portion of the vertical plate, a roller shaft is rotatably arranged in the middle of the vertical plate, a support column is sleeved on one end of the roller, and the output end of the motor is fixedly provided with a rotating shaft through a coupler, and the upper end surface of the rotating shaft is provided with a polishing head.
Preferably, a lower roller set is rotatably arranged on the lower roller support, an upper roller set is rotatably arranged on the upper roller support, and a plate is arranged between the lower end face of the upper roller set and the upper end face of the lower roller set.
Preferably, a side plate is vertically arranged at one end of the sliding rail, a threaded through hole is formed in the middle of the side plate, a second threaded rod is screwed in the threaded through hole, a groove is formed in one side of the extrusion plate, a bearing is fixedly installed in the groove, and one end, fixed with a horizontal portion of the second threaded rod, is inserted in the middle of the bearing.
Preferably, an anti-collision block is fixedly glued on one side of the connecting plate, and one side of the anti-collision block is attached to one side of the plate.
Preferably, an arc-shaped groove is formed in the outer side of the arc-shaped portion of the vertical plate, an angle meter is fixedly mounted on one side of the vertical plate, and the horizontal portion of the angle meter and the upper end face of the turnover plate are located on the same horizontal portion.
Preferably, the two ends of the roller shaft are fixedly provided with a U-shaped overturning handle, the middle part of the U-shaped overturning handle is provided with a threaded through hole, a third threaded rod is screwed in the threaded through hole, and one end of the horizontal part of the third threaded rod is provided with a clamping block.
Preferably, the diameter of the fixture block is 3.5cm-3.8cm, the diameter of the arc-shaped groove is 3.3cm-3.5cm, and the fixture block is matched with the arc-shaped groove.
Preferably, one side of the upper end surface of the operating platform is vertically provided with a limiting column, the upper end surface of the limiting column is an inclined plane, and the upper end surface of the limiting column is attached to the lower end surface of the reinforcing rib plate.
The invention has the beneficial effects that:
when the high-efficiency chamfering machine is used, the chamfering angle can be simply, conveniently and accurately adjusted, so that the chamfering working efficiency is greatly improved.
Drawings
Fig. 1 is a schematic front view of a high-efficiency chamfering machine according to the present invention;
FIG. 2 is a schematic structural view of the efficient chamfering machine in a front view when the angle is adjusted;
FIG. 3 is an enlarged view of A in FIG. 1 of the high-efficiency chamfering machine according to the present invention;
fig. 4 is a top view of a vertical plate of the high-efficiency chamfering machine provided by the invention.
In the figure: the device comprises an operation table 1, a slide rail 2, a sliding block 3, a squeezing plate 4, a lower roller support 501, an upper roller support 502, a lower roller set 601, an upper roller set 602, a connecting plate 7, a top plate 8, a first threaded rod 901, a second threaded rod 902, a third threaded rod 903, a side plate 10, an anti-collision block 11, a plate 12, a vertical plate 131, an arc-shaped groove 132, a support column 14, a roller shaft 15, a reinforcing rib plate 16, a turnover plate 17, a motor 18, a rotating shaft 19, a polishing head 20, a U-shaped turnover handle 21, a fixture block 22, an angle meter 23 and a limiting column 24.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-4, a high-efficiency chamfering machine comprises an operating table 1, wherein a slide rail 2 is arranged on one side of the upper end surface of the operating table 1, a vertical plate 131 is arranged on the other side of the upper end surface of the operating table 1, a slide block 3 is in sliding fit in a slide groove of the slide rail 2, an extrusion plate 4 is arranged on the upper end surface of the slide block 3, a side plate 10 is vertically arranged on one end of the slide rail 2, a threaded through hole is formed in the middle of the side plate 10, a second threaded rod 902 is screwed in the threaded through hole, a groove is formed in one side of the extrusion plate 4, a bearing is fixedly arranged in the groove, and one end of a horizontal part of the second threaded rod 902 is inserted in the middle of the bearing, so that an operator can finely adjust a plate 12 along the slide groove of the slide rail 2;
the upper end surface of the extrusion plate 4 is fixedly provided with a lower roller support 501, one side of the lower roller support 501 is vertically provided with a connecting plate 7, one side of the connecting plate 7 is fixedly glued with an anti-collision block 11, and one side of the anti-collision block 11 is attached to one side of the plate 12, so that the anti-collision block 11 can effectively reduce the surface scratch of the plate 12 during movement;
a top plate 8 is horizontally arranged on one side of the upper part of the connecting plate 7, a threaded through hole is formed in the middle of the top plate 8, a first threaded rod 901 is screwed in the threaded through hole, an upper roller bracket 502 is arranged on the lower part of the vertical part of the first threaded rod 901, a lower roller group 601 is rotatably arranged on the lower roller bracket 501, an upper roller group 602 is rotatably arranged on the upper roller bracket 502, a plate 12 is arranged between the lower end surface of the upper roller group 602 and the upper end surface of the lower roller group 601, the plate 12 with different types can be clamped by adjusting the first threaded rod 901, and meanwhile, an operator can stably move along the space between the upper roller group 602 and the lower roller group 601 by pushing the plate 12, so that the subsequent chamfering operation is facilitated;
the upper part of the vertical plate 131 is an arc-shaped part, the outer side of the arc-shaped part of the vertical plate 131 is provided with the arc-shaped groove 132, one side of the vertical plate 131 is fixedly provided with the angle gauge 23, the horizontal part of the angle gauge 23 and the upper end surface of the turnover plate 17 are positioned on the same horizontal part, the angle gauge 23 can facilitate a user to know the angle required to be adjusted by the polishing head 20, measurement is not needed by other measuring tools, and the operation is convenient and rapid;
a roll shaft 15 is rotatably arranged in the middle of the vertical plate 131, a support column 14 is sleeved at one end of the roll shaft 15, the lower end face of the support column 14 is fixedly welded with the upper end face of the operating platform 1, a reinforcing rib plate 16 is fixedly inserted in the middle of the roll shaft 15, a turnover plate 17 is arranged at the upper part of the reinforcing rib plate 16, a motor 18 is arranged on the upper end face of the turnover plate 17, a rotating shaft 19 is fixedly installed at the output end of the motor 18 through a coupler, and a polishing head 20 is arranged on the upper end face of the rotating shaft 19;
the two ends of the roller shaft 15 are fixedly provided with U-shaped turning handles 21, the U-shaped turning handles 21 are convenient for an operator to adjust the polishing angle of the polishing head 20, the middle part of the U-shaped turning handle 21 is provided with a threaded through hole, a third threaded rod 903 is screwed in the threaded through hole, one end of the horizontal part of the third threaded rod 903 is provided with a fixture block 22, the diameter of the fixture block 22 is 3.5cm-3.8cm, the diameter of the arc-shaped groove 132 is 3.3cm-3.5cm, the fixture block 22 is matched with the arc-shaped groove 132, and after the polishing head 20 is turned to a required angle, the operator rotates the third threaded rod 903 to clamp and fix the fixture block 22 in the arc-shaped groove 132, so that a certain limiting effect can be achieved, and turning and shifting can;
one side of the upper end surface of the operating platform 1 is vertically provided with a limiting column 24, the upper end surface of the limiting column 24 is an inclined surface, the upper end surface of the limiting column 24 is attached to the lower end surface of the reinforcing plate rib 16, and the limiting column 24 can play a certain supporting role on the reinforcing plate rib 16.
In this embodiment, when the high-efficiency chamfering machine is used, an operator firstly places the plate 12 on the lower roller set 601, and then rotates the first threaded rod 901 to enable the upper roller set 602 to clamp the plate 12, wherein one side of the plate 12 is attached to the anti-collision block 11, the anti-collision block 11 can effectively reduce the surface of the plate 12 from being scratched when the plate 12 moves, and meanwhile, the operator can move the plate 12 along the space between the upper roller set 602 and the lower roller set 601;
the polishing angle of the polishing head 20 is adjusted by an operator through the U-shaped turnover handle 21, the angle meter 23 on the vertical plate 131 can facilitate the user to know the angle which needs to be adjusted by the polishing head 20, measurement is not needed by other measuring tools, the operation is convenient and rapid, after the polishing head 20 is adjusted to the needed angle, the operator rotates the third threaded rod 903, the fixture block 22 on the third threaded rod 903 is clamped and fixed in the arc-shaped groove 132, the diameter of the fixture block 22 is 3.5cm-3.8cm, the diameter of the arc-shaped groove 132 is 3.3cm-3.5cm, and the fixture block 22 is matched with the arc-shaped groove 132, so that a certain limiting effect can be achieved, and turnover and displacement are avoided during use;
further, the operator is through rotating the second threaded rod 902 that the spiral shell was closed on the curb plate 10, second threaded rod 902 drives the stripper plate 4 on the slider 3 and removes along the spout of slide rail 2, treat panel 12 and remove when contacting with the wheel of polishing 20, the operator opens the power of motor 18, motor 18 drives the wheel of polishing 20 through rotation axis 19 and polishes panel 12, the operator can also remove panel 12 between wheel group 602 and the lower wheel group 601 along last wheel group simultaneously, this high-efficient beveler is when using, can carry out simple and convenient and accurate regulation to the chamfer angle, thereby the work efficiency of chamfer has been improved greatly.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. A high-efficiency chamfering machine comprises an operating platform (1) and is characterized in that a sliding rail (2) is arranged on one side of the upper end face of the operating platform (1), a vertical plate (131) is arranged on the other side of the upper end face of the operating platform (1), a sliding block (3) is in sliding fit in a sliding groove of the sliding rail (2), an extrusion plate (4) is arranged on the upper end face of the sliding block (3), a lower roller support (501) is fixedly installed on the upper end face of the extrusion plate (4), a connecting plate (7) is vertically arranged on one side of the lower roller support (501), a top plate (8) is horizontally arranged on one side of the upper portion of the connecting plate (7), a threaded through hole is formed in the middle of the top plate (8), a first threaded rod (901) is screwed in the threaded through hole, an upper roller support (502) is arranged on the lower portion of the vertical portion of the first threaded rod (901), an arc, one pot head of roller (15) is equipped with pillar (14), and the lower terminal surface of pillar (14) leads to welded fastening with the up end of operation panel (1), the middle part of roller (15) is inserted and is established and be fixed with deep floor (16), the upper portion of deep floor (16) is equipped with returning face plate (17), the up end of returning face plate (17) is equipped with motor (18), and the output of motor (18) is fixed with rotation axis (19) through the shaft coupling installation, the up end of rotation axis (19) is equipped with the head of polishing (20).
2. The high-efficiency chamfering machine according to claim 1, wherein a lower roller set (601) is rotatably arranged on the lower roller support (501), an upper roller set (602) is rotatably arranged on the upper roller support (502), and a plate (12) is arranged between the lower end surface of the upper roller set (602) and the upper end surface of the lower roller set (601).
3. The high-efficiency chamfering machine according to claim 1, wherein a side plate (10) is vertically arranged at one end of the sliding rail (2), a threaded through hole is formed in the middle of the side plate (10), a second threaded rod (902) is screwed in the threaded through hole, a groove is formed in one side of the extrusion plate (4), a bearing is fixedly installed in the groove, and one end of a horizontal part of the second threaded rod (902) is inserted and fixed in the middle of the bearing.
4. The high-efficiency chamfering machine according to claim 1, wherein an anti-collision block (11) is glued to one side of the connecting plate (7), and one side of the anti-collision block (11) is attached to one side of the plate (12).
5. The efficient chamfering machine according to claim 1, wherein an arc-shaped groove (132) is formed in the outer side of the arc-shaped portion of the vertical plate (131), an angle gauge (23) is fixedly mounted on one side of the vertical plate (131), and the horizontal portion of the angle gauge (23) and the upper end surface of the turnover plate (17) are located on the same horizontal portion.
6. The high-efficiency chamfering machine according to claim 1, wherein a U-shaped turnover handle (21) is fixedly installed at each end of the roller shaft (15), a threaded through hole is formed in the middle of the U-shaped turnover handle (21), a third threaded rod (903) is screwed in the threaded through hole, and a clamping block (22) is arranged at one end of the horizontal part of the third threaded rod (903).
7. The high-efficiency chamfering machine according to claim 6, wherein the diameter of the fixture block (22) is 3.5cm to 3.8cm, the diameter of the arc-shaped groove (132) is 3.3cm to 3.5cm, and the fixture block (22) is matched with the arc-shaped groove (132).
8. The efficient chamfering machine according to claim 1, wherein a limiting column (24) is vertically arranged on one side of the upper end face of the operating platform (1), the upper end face of the limiting column (24) is an inclined face, and the upper end face of the limiting column (24) is attached to the lower end face of the reinforcing rib plate (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011435330.5A CN112548743A (en) | 2020-12-10 | 2020-12-10 | High-efficient beveler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011435330.5A CN112548743A (en) | 2020-12-10 | 2020-12-10 | High-efficient beveler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112548743A true CN112548743A (en) | 2021-03-26 |
Family
ID=75060623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011435330.5A Pending CN112548743A (en) | 2020-12-10 | 2020-12-10 | High-efficient beveler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112548743A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113857962A (en) * | 2021-10-21 | 2021-12-31 | 湖南豪源科技有限公司 | Machining equipment for fireproof rolling shutter door |
| CN115026674A (en) * | 2022-08-10 | 2022-09-09 | 苏州瑞纳电气科技有限公司 | Automatic chamfering processing device for metal parts developed by asynchronous motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3789551A (en) * | 1972-02-28 | 1974-02-05 | Custom Radius Corp | Skate sharpening devices |
| CN2409038Y (en) * | 2000-02-01 | 2000-12-06 | 温州市华宁建筑机械有限公司 | Multifunctional beveler for wall and floor tile |
| CN201264190Y (en) * | 2008-08-15 | 2009-07-01 | 广东科达机电股份有限公司 | Angular adjustment mechanism of grinding head |
| CN203110167U (en) * | 2013-02-06 | 2013-08-07 | 惠安阳光石业有限公司 | Novel stone chamfering machine |
| CN105856346A (en) * | 2016-06-06 | 2016-08-17 | 晋正正 | Panel compositing and pressing device |
| CN207189360U (en) * | 2017-07-14 | 2018-04-06 | 安徽省颐馨木业有限公司 | A kind of floor chamfering/polishing device |
| CN208132058U (en) * | 2018-03-21 | 2018-11-23 | 成都三洪高科科技有限公司 | A kind of transmission of honeycomb core chamfering adjusts module with cutter head |
| CN208322287U (en) * | 2018-04-13 | 2019-01-04 | 南通腾中机械有限公司 | A kind of CNC shearing machine convenient for the fixed transmission of plate |
| CN210360360U (en) * | 2019-06-19 | 2020-04-21 | 天津市天地仁禾科技有限公司 | Fixing and pressing device for plate processing |
| CN210878961U (en) * | 2019-11-21 | 2020-06-30 | 福鼎市三宏机车部件有限公司 | Chamfering machine for producing piston pin |
| CN211103117U (en) * | 2019-11-04 | 2020-07-28 | 湖南恒裕汽车零部件有限公司 | Chamfering device for disc-shaped workpieces |
| CN111922368A (en) * | 2020-06-29 | 2020-11-13 | 东方电气集团东方汽轮机有限公司 | Chamfering tool with adjustable angle |
-
2020
- 2020-12-10 CN CN202011435330.5A patent/CN112548743A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3789551A (en) * | 1972-02-28 | 1974-02-05 | Custom Radius Corp | Skate sharpening devices |
| CN2409038Y (en) * | 2000-02-01 | 2000-12-06 | 温州市华宁建筑机械有限公司 | Multifunctional beveler for wall and floor tile |
| CN201264190Y (en) * | 2008-08-15 | 2009-07-01 | 广东科达机电股份有限公司 | Angular adjustment mechanism of grinding head |
| CN203110167U (en) * | 2013-02-06 | 2013-08-07 | 惠安阳光石业有限公司 | Novel stone chamfering machine |
| CN105856346A (en) * | 2016-06-06 | 2016-08-17 | 晋正正 | Panel compositing and pressing device |
| CN207189360U (en) * | 2017-07-14 | 2018-04-06 | 安徽省颐馨木业有限公司 | A kind of floor chamfering/polishing device |
| CN208132058U (en) * | 2018-03-21 | 2018-11-23 | 成都三洪高科科技有限公司 | A kind of transmission of honeycomb core chamfering adjusts module with cutter head |
| CN208322287U (en) * | 2018-04-13 | 2019-01-04 | 南通腾中机械有限公司 | A kind of CNC shearing machine convenient for the fixed transmission of plate |
| CN210360360U (en) * | 2019-06-19 | 2020-04-21 | 天津市天地仁禾科技有限公司 | Fixing and pressing device for plate processing |
| CN211103117U (en) * | 2019-11-04 | 2020-07-28 | 湖南恒裕汽车零部件有限公司 | Chamfering device for disc-shaped workpieces |
| CN210878961U (en) * | 2019-11-21 | 2020-06-30 | 福鼎市三宏机车部件有限公司 | Chamfering machine for producing piston pin |
| CN111922368A (en) * | 2020-06-29 | 2020-11-13 | 东方电气集团东方汽轮机有限公司 | Chamfering tool with adjustable angle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113857962A (en) * | 2021-10-21 | 2021-12-31 | 湖南豪源科技有限公司 | Machining equipment for fireproof rolling shutter door |
| CN115026674A (en) * | 2022-08-10 | 2022-09-09 | 苏州瑞纳电气科技有限公司 | Automatic chamfering processing device for metal parts developed by asynchronous motor |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20210326 |