CN108908033B - Communication equipment production is with good shell equipment of polishing of security performance - Google Patents
Communication equipment production is with good shell equipment of polishing of security performance Download PDFInfo
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- CN108908033B CN108908033B CN201810676846.5A CN201810676846A CN108908033B CN 108908033 B CN108908033 B CN 108908033B CN 201810676846 A CN201810676846 A CN 201810676846A CN 108908033 B CN108908033 B CN 108908033B
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- wall
- welded
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- communication equipment
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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
- B24B27/00—Other grinding machines or devices
- B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
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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
- B24B41/02—Frames; Beds; Carriages
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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
- B24B41/06—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
- B24B47/20—Drives or gearings; Equipment therefor relating to feed movement
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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
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/12—Devices for exhausting mist of oil or coolant; Devices for collecting or recovering materials resulting from grinding or polishing, e.g. of precious metals, precious stones, diamonds or the like
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention belongs to the technical field of polishing of communication equipment, and particularly relates to a shell polishing device with good safety performance for production of communication equipment. The device reduces larger vibration generated when the device works, can collect scraps generated during polishing, avoids the influence of the scraps on the polishing, greatly improves the polishing efficiency and precision, can perform annular polishing along communication equipment, and can ensure that the periphery of the communication equipment is uniformly polished.
Description
Technical Field
The invention relates to the technical field of polishing of communication equipment, in particular to a shell polishing device with good safety performance for communication equipment production.
Background
The communication equipment refers to wired communication equipment and wireless communication equipment used in industrial control environment. The wired communication equipment mainly introduces conversion equipment for solving serial port communication, professional bus type communication, industrial Ethernet communication and various communication protocols in industrial fields. The wireless communication equipment mainly comprises wireless AP, a wireless network bridge, a wireless network card, a wireless lightning arrester, an antenna and the like.
Through search, the patent with the Chinese patent authorization number of CN104741978A discloses the following steps: rotating a limit nut according to the shape and size of the workpiece, moving the limit nut on the stud to change the displacement of the spring, and enabling the polishing execution mechanism to be close to or far away from the workpiece conveying belt so as to enable the polishing execution mechanism and the workpiece to be adjusted to be at a proper distance; the closed driving device drives the workpiece conveying belt to move at a constant speed, the workpiece is placed above the workpiece conveying belt, and the workpiece conveying belt conveys the workpiece to the lower part of the polishing executing mechanism for polishing operation; and in the polishing process, the limiting nut is continuously rotated according to the abrasion degree of the polishing actuating mechanism, the displacement of the spring is changed, and the polishing pressure is adjusted. The above patents suffer from the following disadvantages: the polishing device has the advantages that safety performance is low in the polishing process of communication equipment, workpieces are easily damaged, usability of the workpieces is affected, and the polishing device is simple in design structure, single in function and inconvenient to use. However, the above-mentioned patent can not solve such problems, and therefore, a need exists for a housing polishing device with good safety performance for communication equipment production.
Disclosure of Invention
The invention provides a shell polishing device with good safety performance for communication equipment production, which is based on the technical problems that in the process of polishing communication equipment, the safety performance is low, workpieces are easily damaged, the service performance of the workpieces is influenced, the design structure of the whole device is simple, the function is single, and the use is inconvenient.
The invention provides a shell polishing device with good safety performance for communication equipment production, which comprises a fixed base, wherein an anti-skid base plate is welded on the outer wall of the bottom of the fixed base, the overlook area of the anti-skid base plate is larger than that of the fixed base, a rotating groove is formed in the middle of the outer wall of the top of the fixed base, an inner gear ring is welded on the inner wall of the rotating groove, a rotating gear is meshed on the inner wall of the inner gear ring, a rotating column is welded on the outer wall of the top of the rotating gear, a connecting seat is welded on the outer wall of the top of the rotating column, a supporting table is welded on the outer wall of the top of the connecting seat, reinforcing rib plates are welded on the outer walls of two sides of the top of the supporting table, supporting columns are welded on the outer walls of the tops of the two supporting columns, and a fixed shell is, the T-shaped support rod is inserted into the inner wall of the top of the fixed shell, a transmission toothed belt is welded on the outer wall of one side of the T-shaped support rod, a transmission gear is meshed on the outer wall of one side of the transmission toothed belt, a fixed connection is formed between the outer wall of one side of the transmission gear and the fixed shell, a transmission belt is connected on the outer wall of one side of the transmission gear, a first driving motor is in transmission connection with the inner wall of one end, away from the transmission gear, of the transmission belt, the first driving motor is connected onto the outer wall of one side of the top of the support table through bolts, a fixed shaft sleeve is welded on the outer wall of one side of the top of the T-shaped support rod, a second driving motor is arranged above the fixed.
Preferably, a drawing groove is formed in the outer wall of one side of the supporting table, a sliding rib is welded to the inner wall of the bottom of the drawing groove, a drawing box is connected to the outer wall of the top of the sliding rib in a sliding mode, and a drawing ring is welded to the outer wall of one side of the drawing box.
Preferably, the welding has the T shape track that is the annular distribution on the outer wall at brace table top, and sliding connection has the slip cassette on the orbital top outer wall of T shape, and all the welding has the bearing frame on the outer wall of slip cassette top both sides, all rotates on the inner wall of two bearing frames to be connected with drive screw, and threaded connection has the fixed sleeve on drive screw's the outer wall.
Preferably, the outer wall at the top of the fixed sleeve is welded with a fixed cylinder, the inner wall at the top of the fixed cylinder is spliced with a lifting rod, one end of the lifting rod, which is far away from the fixed cylinder, is welded with a reversing shaft, and the outer wall of one side of the reversing shaft is provided with a second polishing disc.
Preferably, the outer wall of one side of the lifting rod is welded with a first handheld handle, the outer wall of one end of the reversing shaft is welded with a second handheld handle, and the outer walls of the first handheld handle and the second handheld handle are sleeved with rubber sleeves.
Preferably, the outer walls of the two sides of the top of the fixing plate are both provided with guide grooves, and the inner walls of the tops of the guide grooves are connected with rolling wheels in a rolling mode.
Preferably, two it is connected with the back shaft to rotate on the outer wall of the relative one side of wheel that rolls, and the storing board is installed to the top of back shaft, and the communication equipment body has been placed at the top of storing board.
Preferably, the outer wall of one side of the top of the T-shaped support rod is welded with a liquid storage tank, the inner wall of one side of the bottom of the liquid storage tank is welded with a connecting plate, and the outer wall of the top of the connecting plate is connected with a water suction pump through bolts.
Preferably, the welding has the inlet tube on one side outer wall of suction pump, and the one end welding of inlet tube has the filter screen, and the welding has the aqueduct on the outer wall of suction pump bottom.
Preferably, the bellows is welded at the end of the water guide pipe far away from the water suction pump, and the water spray head is connected to the end of the bellows far away from the water guide pipe in a threaded manner.
The beneficial effects of the invention are as follows:
1. through the unable adjustment base and the anti-skidding backing plate that set up for the device can be stable place subaerial, has reduced the device and has produced great vibration at the during operation, has improved the precision of polishing to the communication equipment body.
2. Through the pull box that sets up, can collect the piece when polishing, avoid the piece to the influence when polishing, improved the efficiency and the precision of polishing greatly.
3. Through the transmission lead screw, the lifting rod and the handheld handle that set up, can polish communication equipment from communication equipment's side, improve the security of polishing communication equipment, reduced the risk of polishing the damage to communication equipment.
4. Through the T shape track and the slip cassette that set up, can advance the annular round communications facilities and polish, can guarantee to carry out even polishing around communications facilities, whole device design novel structure, multiple functional, convenient to use, maneuverability is strong.
Drawings
Fig. 1 is a schematic structural diagram of a housing polishing device with good safety performance for communication device production according to the present invention;
FIG. 2 is a schematic structural view of a transmission screw of a housing polishing device with good safety performance for communication device production according to the present invention;
fig. 3 is a schematic structural view of a T-shaped rail and a sliding clamping seat of a housing polishing device with good safety performance for communication device production according to the present invention;
fig. 4 is a schematic diagram of a storage panel structure of a housing polishing device with good safety performance for communication device production according to the present invention;
fig. 5 is a schematic structural view of a liquid storage tank of the housing polishing device with good safety performance for communication device production according to the present invention.
In the figure: the device comprises a fixed base 1, an anti-skid base plate 2, a rotating groove 3, an inner gear ring 4, a rotating column 5, a connecting seat 6, a supporting table 7, a drawing box 8, a reinforcing rib plate 9, a supporting column 10, a fixed shell 11, a supporting rod 12T, a transmission gear 13, a transmission belt 14, a first driving motor 15, a fixed shaft sleeve 16, a first polishing disc 17, a second driving motor 18, a T-shaped track 19, a sliding clamping seat 20, a bearing seat 21, a transmission screw 22, a fixed sleeve 23, a fixed cylinder 24, a lifting rod 25, a reversing shaft 26, a second polishing disc 27, a guide groove 28, a rolling wheel 29, a supporting shaft 30, a storage plate 31, a communication equipment body 32, a liquid storage tank 33, a water suction pump 34, a water guide pipe 35, a corrugated pipe 36 and.
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. 1-5, a shell polishing device with good safety performance for communication equipment production comprises a fixed base 1, an anti-slip pad 2 is welded on the outer wall of the bottom of the fixed base 1, the overlook area of the anti-slip pad 2 is larger than the overlook area of the fixed base 1, the strength and stability of the fixed base 1 for supporting the device are improved, a rotating groove 3 is formed in the middle position of the outer wall of the top of the fixed base 1, an inner gear ring 4 is welded on the inner wall of the rotating groove 3, a rotating gear is meshed on the inner wall of the inner gear ring 4, a rotating column 5 is welded on the outer wall of the top of the rotating gear, so that the upper part of the device can rotate along the fixed base 1, the polishing operation of an operator on the communication equipment is facilitated, a connecting seat 6 is welded on the outer wall of the top of the rotating column 5, a supporting table 7 is welded on the outer, the outer walls of the tops of the two reinforcing rib plates 9 are welded with supporting columns 10, the outer walls of the tops of the two supporting columns 10 are welded with fixing plates, the outer wall of one side of the top of the supporting table 7 is welded with a fixed shell 11, the inner wall of the top of the fixed shell 11 is inserted with a T-shaped supporting rod 12, the outer wall of one side of the T-shaped supporting rod 12 is welded with a transmission toothed belt, the outer wall of one side of the transmission toothed belt is meshed with a transmission gear 13, the outer wall of one side of the transmission gear 13 is fixedly connected with the fixed shell 11, the outer wall of one side of the transmission gear 13 is in transmission connection with a transmission belt 14, the inner wall of one end, far away from the transmission gear 13, of the transmission belt 14 is in transmission connection with a first driving motor 15, the first driving motor 15 is connected to the outer wall of one side of the top of the supporting, a first abrasive disc 17 is arranged below the fixed sleeve 16.
In the invention, a drawing groove is arranged on the outer wall of one side of a supporting platform 7, a sliding rib is welded on the inner wall of the bottom of the drawing groove, a drawing box 8 is connected on the outer wall of the top of the sliding rib in a sliding way, a drawing ring is welded on the outer wall of one side of the drawing box 8, a T-shaped track 19 which is distributed annularly is welded on the outer wall of the top of the supporting platform 7, and the outer wall of the top of the T-shaped track 19 is connected with a sliding clamping seat 20 in a sliding way, the outer walls of the two sides of the top of the sliding clamping seat 20 are welded with bearing seats 21, the inner walls of the two bearing seats 21 are connected with a transmission screw 22 in a rotating way, the outer wall of the transmission screw 22 is connected with a fixed sleeve 23 in a threaded way, the outer wall of the top of the fixed sleeve 23 is welded with a fixed cylinder 24, and the inner wall at the top of the fixed cylinder 24 is inserted with a lifting rod 25, one end of the lifting rod 25 far away from the fixed cylinder 24 is welded with a reversing shaft 26, and the outer wall of one side of the reversing shaft 26 is provided with a second polishing disc 27.
A first hand-held handle is welded on the outer wall of one side of the lifting rod 25, a second hand-held handle is welded on the outer wall of one end of the reversing shaft 26, rubber sleeves are respectively sleeved on the outer walls of one ends of the first hand-held handle and the second hand-held handle, guide grooves 28 are respectively formed in the outer walls of two sides of the top of the fixing plate, rolling wheels 29 are connected on the inner wall of the top of each guide groove 28 in a rolling manner, a supporting shaft 30 is connected on the outer wall of one side, opposite to the two rolling wheels 29, in a rotating manner, a storage plate 31 is arranged above the supporting shaft 30, a communication equipment body 32 is arranged at the top of the storage plate 31, a liquid storage box 33 is welded on the outer wall of one side of the top of the T-shaped supporting rod 12, a connecting plate is welded on the inner wall of one side of the bottom of the liquid storage box, a water guide pipe 35 is welded on the outer wall of the bottom of the water suction pump 34, a corrugated pipe 36 is welded at one end of the water guide pipe 35 far away from the water suction pump 34, and a water spray head 37 is connected to one end of the corrugated pipe 36 far away from the water guide pipe 35 through threads.
When the portable polishing machine is used, an operator places the communication equipment body 32 on the surface of the storage plate 31 for fixing, the operator controls the second driving motor 18 to rotate the first polishing disk 17 at a high speed, controls the first driving motor 15 to start, and drives the transmission toothed belt to lift up and down by the transmission gear 13, so that the effect of vertical movement of the T-shaped support rod 12 is realized, the feeding of the first polishing disk 17 is completed, the polishing of the inside of the communication equipment body 32 is completed, the operator rotates the transmission lead screw 22 to drive the fixed cylinder 24 to feed horizontally, the second polishing disk 27 is controlled to polish the outside of the communication equipment body 32 by the control of the plurality of first handheld handles and the second handheld handles, meanwhile, the operator can rotate the sliding clamping seat 20 along the T-shaped track 19, so that the polishing of the whole outer surface of the communication equipment body 32 is realized, in the process of polishing the communication equipment body 32, the water pump 34 sprays the grinding fluid on the surface of the communication equipment body 32 through the corrugated pipe 36 and the water spray head 37, so that the communication equipment body 32 is prevented from being damaged by dry polishing.
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 (7)
1. The shell polishing equipment with good safety performance for production of communication equipment comprises a fixed base (1) and is characterized in that an anti-slip base plate (2) is welded on the outer wall of the bottom of the fixed base (1), the overlooking area of the anti-slip base plate (2) is larger than that of the fixed base (1), a rotating groove (3) is formed in the middle of the outer wall of the top of the fixed base (1), an inner gear ring (4) is welded on the inner wall of the rotating groove (3), a rotating gear is meshed on the inner wall of the inner gear ring (4), a rotating column (5) is welded on the outer wall of the top of the rotating gear, a connecting seat (6) is welded on the outer wall of the top of the rotating column (5), a supporting table (7) is welded on the outer wall of the top of the connecting seat (6), and reinforcing rib plates (9) are welded on the outer walls, the outer walls of the tops of the two reinforcing rib plates (9) are welded with supporting columns (10), the outer walls of the tops of the two supporting columns (10) are welded with fixing plates, the outer wall of one side of the top of the supporting table (7) is welded with a fixing shell (11), a T-shaped supporting rod (12) is inserted into the inner wall of the top of the fixing shell (11), a transmission toothed belt is welded on the outer wall of one side of the T-shaped supporting rod (12), a transmission gear (13) is meshed with the outer wall of one side of the transmission toothed belt, a fixed connection is formed between the outer wall of one side of the transmission gear (13) and the fixing shell (11), a transmission belt (14) is in transmission connection with the outer wall of one side of the transmission gear (13), a first driving motor (15) is in transmission connection with the inner wall of one end, far away from the transmission gear (13), of the transmission belt (14), and the first, a fixed shaft sleeve (16) is welded on the outer wall of one side of the top of the T-shaped support rod (12), a second driving motor (18) is arranged above the fixed shaft sleeve (16), a first polishing disc (17) is arranged below the fixed shaft sleeve (16), T-shaped rails (19) distributed in an annular shape are welded on the outer wall of the top of the support table (7), a sliding clamping seat (20) is connected on the outer wall of the top of the T-shaped rails (19) in a sliding mode, bearing seats (21) are welded on the outer walls of two sides of the top of the sliding clamping seat (20), transmission lead screws (22) are rotatably connected on the inner walls of the two bearing seats (21), a fixed sleeve (23) is connected on the outer wall of the top of the transmission lead screws (22) in a threaded mode, a fixed cylinder (24) is welded on the outer wall of the top of the fixed sleeve (23), and a, the welding of the one end of fixed section of thick bamboo (24) is kept away from in lifter (25) has reversing shaft (26), installs second polishing dish (27) on the one side outer wall of reversing shaft (26), the welding has first handheld handle on the one side outer wall of lifter (25), and the welding has the handheld handle of second on the one end outer wall of reversing shaft (26), has all cup jointed the rubber sleeve on the one end outer wall of the handheld handle of first handheld handle and second.
2. The equipment for polishing the shell with good safety performance for producing the communication equipment as claimed in claim 1, wherein a drawing groove is formed on the outer wall of one side of the supporting table (7), a sliding rib is welded on the inner wall of the bottom of the drawing groove, a drawing box (8) is connected on the outer wall of the top of the sliding rib in a sliding mode, and a pull ring is welded on the outer wall of one side of the drawing box (8).
3. The equipment for polishing the housing with good safety performance for producing the communication equipment as claimed in claim 1, wherein the outer walls of the two sides of the top of the fixing plate are both provided with guide grooves (28), and the inner wall of the top of the guide grooves (28) is connected with rolling wheels (29) in a rolling manner.
4. The equipment of polishing of the communication equipment production housing with good safety performance according to claim 3, characterized in that the outer wall of one side opposite to the two rolling wheels (29) is rotatably connected with a supporting shaft (30), a storage plate (31) is installed above the supporting shaft (30), and a communication equipment body (32) is placed on the top of the storage plate (31).
5. The equipment of polishing of the communication equipment production safety performance as claimed in claim 1, characterized in that the liquid storage tank (33) is welded on the outer wall of one side of the top of the T-shaped support rod (12), the connecting plate is welded on the inner wall of one side of the bottom of the liquid storage tank (33), and the water suction pump (34) is connected on the outer wall of the top of the connecting plate through bolts.
6. The communication equipment production casing equipment of polishing that security performance is good of claim 5, characterized in that, the welding has the inlet tube on one side outer wall of suction pump (34), and the one end welding of inlet tube has the filter screen, and the welding has aqueduct (35) on the outer wall of suction pump (34) bottom.
7. The equipment for polishing the shell with good safety performance for producing the communication equipment as claimed in claim 6, wherein a corrugated pipe (36) is welded at one end of the water guide pipe (35) far away from the water suction pump (34), and a water spraying head (37) is connected to one end of the corrugated pipe (36) far away from the water guide pipe (35) in a threaded mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810676846.5A CN108908033B (en) | 2018-06-27 | 2018-06-27 | Communication equipment production is with good shell equipment of polishing of security performance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810676846.5A CN108908033B (en) | 2018-06-27 | 2018-06-27 | Communication equipment production is with good shell equipment of polishing of security performance |
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| CN108908033A CN108908033A (en) | 2018-11-30 |
| CN108908033B true CN108908033B (en) | 2020-12-04 |
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| CN201810676846.5A Active CN108908033B (en) | 2018-06-27 | 2018-06-27 | Communication equipment production is with good shell equipment of polishing of security performance |
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| CN110355668A (en) * | 2019-08-19 | 2019-10-22 | 徐州三科电气有限公司 | A kind of quick grinding device for high-low pressure electrical cabinet shell |
| CN110605624A (en) * | 2019-09-10 | 2019-12-24 | 合肥嘉东光学股份有限公司 | Edge grinding machine with follow-up mechanism |
| CN111185886A (en) * | 2020-03-12 | 2020-05-22 | 宁波双德电子有限公司 | Adjustable operation table for sound production and processing |
| CN115042074A (en) * | 2022-08-16 | 2022-09-13 | 江苏瑞仕达电气设备有限公司 | Surface polishing device for finish machining of bus duct |
| CN115625593B (en) * | 2022-12-22 | 2023-03-31 | 江苏鑫达能热能环保科技有限公司 | Polishing device and method for steam generator machining |
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| JP3010572B2 (en) * | 1994-09-29 | 2000-02-21 | 株式会社東京精密 | Wafer edge processing equipment |
| CN105598824B (en) * | 2016-03-13 | 2017-09-15 | 安徽格楠机械有限公司 | A kind of precise grinding polisher for aircraft engine seal face |
| CN108044430A (en) * | 2017-12-22 | 2018-05-18 | 郑州默尔电子信息技术有限公司 | A kind of rotatable lift metope cleaning trimming device |
| CN108127520A (en) * | 2017-12-25 | 2018-06-08 | 郑州默尔电子信息技术有限公司 | A kind of environment-friendly type machine components grinding device based on swing power |
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Effective date of registration: 20201110 Address after: No.633 Jiangshan Road, xunqiao Town, Linhai City, Taizhou City, Zhejiang Province Applicant after: Wu Suhuai Address before: 450000 High-tech Industrial Development Zone, Zhengzhou City, Henan Province, 6 Cuizhu Street National 863 Software Park, 11 Building, 12 Floors, 223 Rooms Applicant before: ZHENGZHOU MOER ELECTRONIC INFORMATION TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20220930 Address after: Room 104, Workshop 11#, Intelligent Optoelectronic Information Industrial Park, No. 16 Heilongjiang Road, Dongcheng Street, Economic and Technological Development Zone, Liaocheng City, Shandong Province, 252000 Patentee after: Liaocheng Luozhan New Material Technology Co.,Ltd. Address before: 317000 No. 633, Jiangshan Road, Xunqiao Town, Linhai City, Taizhou City, Zhejiang Province Patentee before: Wu Suhuai |
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