CN110303425A - A kind of grinding device of curved surface cover board - Google Patents

A kind of grinding device of curved surface cover board Download PDF

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Publication number
CN110303425A
CN110303425A CN201910760728.7A CN201910760728A CN110303425A CN 110303425 A CN110303425 A CN 110303425A CN 201910760728 A CN201910760728 A CN 201910760728A CN 110303425 A CN110303425 A CN 110303425A
Authority
CN
China
Prior art keywords
cover board
curved
shell
grinding
hole
Prior art date
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
Application number
CN201910760728.7A
Other languages
Chinese (zh)
Inventor
孙福明
郑嘉荣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maanshan Lude Electronic Technology Co Ltd
Original Assignee
Maanshan Lude Electronic Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Maanshan Lude Electronic Technology Co Ltd filed Critical Maanshan Lude Electronic Technology Co Ltd
Priority to CN201910760728.7A priority Critical patent/CN110303425A/en
Publication of CN110303425A publication Critical patent/CN110303425A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B37/00Lapping machines or devices; Accessories
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B37/00Lapping machines or devices; Accessories
    • B24B37/27Work carriers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B37/00Lapping machines or devices; Accessories
    • B24B37/34Accessories
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00Safety 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
    • B24B55/06Dust extraction equipment on grinding or polishing machines

Abstract

The present invention relates to laptop cover board technical field of processing equipment, and disclose a kind of grinding device of curved surface cover board, including shell, the upper surface of shell is fixedly connected with fixed mechanism, the lower surface four corners of shell are fixedly connected to supporting leg, the outer wall of multiple supporting legs is fixedly connected with dedusting mechanism jointly, the left and right inner wall of shell offers rectangular through-hole, the hole wall of rectangular through-hole slidably connects rolling bearing, the inner wall joint activity of two rolling bearings is connected with mixing roll, and the side walls of shell are connected with the first sliding block.The present invention can effectively avoid the problem that curved surface cover board fixation procedure is damaged, improve the safety of curved surface cover board processing, also the quality and aesthetics of the cover board processing of curved surface be can be improved, and then improve the qualification rate of curved surface cover board processing, also grinding clast pollution surrounding enviroment can be effectively avoided, the environmental-protecting performance of the device is improved.

Description

A kind of grinding device of curved surface cover board
Technical field
The present invention relates to a kind of grinding of laptop cover board technical field of processing equipment more particularly to curved surface cover board dresses It sets.
Background technique
Laptop is also known as notes type, portable or kneetop computer, is a kind of small-sized, PC for being easily carried, The weight of laptop is usually 1-3 kilograms heavy, and development trend is that volume is smaller and smaller, and weight is more and more lighter, and function It is stronger and stronger, it needs to grind it in laptop curved surface cover board production process at present, to ensure curved surface lid Plate outer wall is smooth, improves the quality and beauty of laptop.
Existing curved surface cover board is directly clamped when grinding using stationary fixture, but curved surface cover board retained part people Member is damaged by fixture, the cover board quality and aesthetics of curved surface is influenced, or even influence the qualification rate of curved surface cover board processing, in addition, bent The clast that surface cover generates when grinding drifts pollution surrounding enviroment, and then influences the environmental-protecting performance of the device.
Summary of the invention
It is direct using stationary fixture when grinding that the purpose of the present invention is to solve prior art mean camber cover boards Clamping, but curved surface cover board retained part personnel are damaged by fixture, influence the cover board quality and aesthetics of curved surface, or even influence bent The qualification rate of surface cover processing in addition, the clast that curved surface cover board generates when grinding drifts pollution surrounding enviroment, and then influences The problem of device environmental-protecting performance, and a kind of grinding device of the curved surface cover board proposed.
To achieve the goals above, present invention employs following technical solutions:
A kind of grinding device of curved surface cover board, including shell, the upper surface of the shell are fixedly connected with fixed mechanism, institute The lower surface four corners for stating shell are fixedly connected to supporting leg, and the outer wall of multiple supporting legs is fixedly connected with dedusting jointly Mechanism, the left and right inner wall of the shell offer rectangular through-hole, and the hole wall of the rectangular through-hole slidably connects rolling bearing, The inner wall joint activity of two rolling bearings is connected with mixing roll, and the side walls of the shell are connected with the first sliding block, The outer wall of the shell offers the first sliding groove matched with the first sliding block, and first sliding block is fixed far from the side of shell It is connected with driving mechanism, the lower surface of the driving mechanism is fixedly connected with auxiliary body, the bottom end and ground of the auxiliary body Face contact.
Preferably, the fixed mechanism includes the aspiration pump being fixedly connected with housing upper surface, the air inlet of the aspiration pump Mouth is fixed to be communicated with conduit, and the top of the conduit is fixed to be communicated with U-tube, the fixed connection in two bottom ends of the U-tube There is check valve, the fixation of the bottom end of two check valves is communicated with cylinder, and the bottom end of two cylinders both passes through shell Upper surface and fixation are communicated with sucker, and fixation is communicated with connecting tube, the pipe of the connecting tube to the outer wall of two cylinders jointly Wall fixation is communicated with valve.
Preferably, the dedusting mechanism includes the water tank being fixedly connected jointly with multiple supporting leg outer walls, the water tank Upper surface is fixedly connected with suction ventilator, and the output end of the suction ventilator is fixedly connected with tracheae, and the bottom end of the tracheae passes through water The upper surface of case simultaneously extends downwardly, and the upper surface fixation of the water tank is communicated with escape pipe, and the inner wall of the shell is fixedly connected There is dust hopper, the bottom end of the dust hopper passes through housing lower surface and is connected to the fixation of the air inlet of suction ventilator.
Preferably, the driving mechanism includes the L shaped plate being fixedly connected with the first sliding block outer wall, the inner wall of the L shaped plate It is fixedly connected with the first driving motor, the output end of first driving motor is fixed by the left side wall of shaft coupling and mixing roll Connection, the lower surface of the L shaped plate are fixedly connected with the second driving motor, and the output end of second driving motor is fixedly connected There is gear, the outer wall of the shell is fixedly connected with rack gear, and the outer wall of the rack gear is engaged with the outer wall of gear.
Preferably, the auxiliary body includes the support rod being fixedly connected with L shaped plate lower surface, the bottom end of the support rod It is fixedly connected with Universal caster.
Preferably, the side wall of the shell offers through-hole, and the hole wall of through-hole is hinged with cover board by multiple hinges, institute The outer wall for stating cover board is fixedly connected with L shape iron block, and the outer wall of the L shape iron block is connected with magnet, and the magnet is far from L shape One end of iron block is fixedly connected with the outer wall of shell.
Preferably, the outer wall of the rolling bearing is fixedly connected there are two the second symmetrical sliding block, and the rectangle is logical The hole wall in hole offers the second sliding slot matched with the second sliding block.
Preferably, the upper surface of the water tank offers drainage hole, and the hole wall of drainage hole is threaded with sealing plug.
Preferably, the bottom end of multiple supporting legs is fixedly connected to rubber pad.
Compared with prior art, the present invention provides a kind of grinding device of curved surface cover board, have it is following the utility model has the advantages that
1, the grinding device of the curved surface cover board, by being provided with aspiration pump, sucker, cylinder and mixing roll, when needs are to song When surface cover is ground, L shape iron block is pulled first, is detached from itself and magnet, while raising cover board, and curved surface cover board It is put into shell, then starts aspiration pump, aspiration pump makes sucker that curved surface cover board tightly be sucked, makes by conduit, U-tube and cylinder It can stablize placement, achieve the purpose that fixed curved surface cover board, while will not damage curved surface cover board, later handle and the curved surface cover board It in the mixing roll insertion rolling bearing to match, and is attached with the first driving motor output end, starts the first driving later Motor and the second driving motor, the first driving motor drive mixing roll rotation, realize to grinding outside curved surface cover board, then Staff controls the second driving motor positive and negative rotation, and then makes to move back and forth before and after mixing roll by gear and rack gear, realizes Curved surface cover board is ground comprehensively, ensures the grinding quality of curved surface cover board, when the grinding of curved surface cover board, which finishes, to be needed to take out, is lifted Plate of uncapping only need to open valve later, which can effectively avoid the problem that curved surface cover board fixation procedure is damaged, and mention The high safety of curved surface cover board processing, also can be improved the quality and aesthetics of the cover board processing of curved surface, and then improve song The qualification rate of surface cover processing.
2, the grinding device of the curved surface cover board, by being provided with suction ventilator, water tank and dust hopper and tracheae, when curved surface cover board When grinding, starting suction ventilator, suction ventilator grind curved surface cover board by dust hopper the scrap collecting of generation first, and pass through Suction ventilator and tracheae are transported in water tank, and then clast is by the soluble mixing of the water capacity in water tank, and then clean air passes through Water tank is discharged in escape pipe, which can effectively avoid grinding clast pollution surrounding enviroment, improve the environmental-protecting performance of the device.
It is not directed to part in the device to be the same as those in the prior art or can be realized by using the prior art, the present invention can It effectively avoids the problem that curved surface cover board fixation procedure is damaged, improves the safety of curved surface cover board processing, also can be improved song The quality and aesthetics of the cover board processing in face, and then the qualification rate of curved surface cover board processing is improved, it also can effectively avoid grinding Clast pollutes surrounding enviroment, improves the environmental-protecting performance of the device.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the grinding device of curved surface cover board proposed by the present invention;
Fig. 2 is a kind of structural schematic diagram of the grinding device part A of curved surface cover board proposed by the present invention;
Fig. 3 is a kind of structural schematic diagram of the grinding device part A of curved surface cover board proposed by the present invention;
Fig. 4 is a kind of structural schematic diagram of the grinding device part A of curved surface cover board proposed by the present invention.
In figure: 1 shell, 2 fixed mechanisms, 21 aspiration pumps, 22 conduits, 23 U-tubes, 24 check valves, 25 cylinders, 26 suckers, 27 connecting tubes, 28 valves, 3 supporting legs, 4 dedusting mechanisms, 41 water tanks, 42 suction ventilators, 43 tracheaes, 44 escape pipes, 45 dust hoppers, 5 Rectangular through-hole, 6 rolling bearings, 7 driving mechanisms, 71 L shaped plates, 72 first driving motors, 73 second driving motors, 74 gears, 75 Rack gear, 8 auxiliary bodies, 81 support rods, 82 Universal casters, 9 mixing rolls, 10 first sliding blocks, 11 cover boards, 12L shape iron block, 13 magnetic Iron, 14 second sliding blocks, 15 sealing plugs.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "left", "right", "top", The orientation or positional relationship of the instructions such as "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, merely to just In description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with Specific orientation construction and operation, therefore be not considered as limiting the invention.
Referring to Fig.1-4, a kind of grinding device of curved surface cover board, including shell 1, the upper surface of shell 1 are fixedly connected with Determine mechanism 2, the lower surface four corners of shell 1 are fixedly connected to supporting leg 3, and the outer wall of multiple supporting legs 3 is fixedly connected jointly There is dedusting mechanism 4, the left and right inner wall of shell 1 offers rectangular through-hole 5, and the hole wall of rectangular through-hole 5 slidably connects the axis of rolling 6 are held, the inner wall joint activity of two rolling bearings 6 is connected with mixing roll 9, and the side walls of shell 1 are connected with the first sliding block 10, The outer wall of shell 1 offers the first sliding groove matched with the first sliding block 10, and side of first sliding block 10 far from shell 1 is fixed to be connected It is connected to driving mechanism 7, the lower surface of driving mechanism 7 is fixedly connected with auxiliary body 8, the bottom end of auxiliary body 8 and ground face contact.
Fixed mechanism 2 includes the aspiration pump 21 being fixedly connected with 1 upper surface of shell, the fixed connection of the air inlet of aspiration pump 21 There is conduit 22, the top of conduit 22 is fixed to be communicated with U-tube 23, and the fixation of two bottom ends of U-tube 23 is communicated with check valve 24, The fixation of the bottom end of two check valves 24 is communicated with cylinder 25, and the bottom end of two cylinders 25 both passes through the upper surface of shell 1 and consolidates Surely it is communicated with sucker 26, the outer wall of two cylinders 25 is jointly fixed to be communicated with connecting tube 27, the fixed connection of the tube wall of connecting tube 27 There is valve 28, which can effectively avoid the problem that curved surface cover board fixation procedure is damaged, and improve the processing of curved surface cover board Safety, also can be improved the quality and aesthetics of the cover board processing of curved surface, and then improve the qualification rate of curved surface cover board processing.
Dedusting mechanism 4 includes the water tank 41 being fixedly connected jointly with multiple 3 outer walls of supporting leg, and the upper surface of water tank 41 is fixed It is connected with suction ventilator 42, the output end of suction ventilator 42 is fixedly connected with tracheae 43, and the bottom end of tracheae 43 passes through the upper table of water tank 41 Face simultaneously extends downwardly, and the upper surface fixation of water tank 41 is communicated with escape pipe 44, and the inner wall of shell 1 is fixedly connected with dust hopper 45, The bottom end of dust hopper 45 passes through 1 lower surface of shell and is connected to the fixation of the air inlet of suction ventilator 42, which can effectively avoid It grinds clast and pollutes surrounding enviroment, improve the environmental-protecting performance of the device.
Driving mechanism 7 includes the L shaped plate 71 being fixedly connected with 10 outer wall of the first sliding block, and the inner wall of L shaped plate 71 is fixedly connected There is the first driving motor 72, the output end of the first driving motor 72 is fixedly connected by shaft coupling with the left side wall of mixing roll 9, L The lower surface of shape plate 71 is fixedly connected with the second driving motor 73, and the output end of the second driving motor 73 is fixedly connected with gear 74, the outer wall of shell 1 is fixedly connected with rack gear 75, and the outer wall of rack gear 75 is engaged with the outer wall of gear 74.
Auxiliary body 8 includes the support rod 81 being fixedly connected with 71 lower surface of L shaped plate, and the bottom end of support rod 81 is fixedly connected There is Universal caster 82, auxiliary body 8, which summarizes support rod 81, to be supported L shaped plate 71, ensure that L shaped plate 71 is placed and stablize.
The side wall of shell 1 offers through-hole, and the hole wall of through-hole is hinged with cover board 11 by multiple hinges, cover board 11 it is outer Wall is fixedly connected with L shape iron block 12, and the outer wall of L shape iron block 12 is connected with magnet 13, magnet 13 far from L shape iron block 12 one End is fixedly connected with the outer wall of shell 1, and L shape iron block 12 and magnetic stripe 13 are convenient for fixed cover board 11.
The outer wall of rolling bearing 6 is fixedly connected there are two the second symmetrical sliding block 14, and the hole wall of rectangular through-hole 5 opens up There is the second sliding slot matched with the second sliding block 14, the second sliding block 14 can ensure the mobile stability of rolling bearing 6.
The upper surface of water tank 41 offers drainage hole, and the hole wall of drainage hole is threaded with sealing plug 15, and drainage hole is just Sewage is discharged in water tank 41.
The bottom end of multiple supporting legs 3 is fixedly connected to rubber pad, aspiration pump 21, suction ventilator 42, the first driving motor 72 It is electrically connected by control switch and external power supply with the second driving motor 73, can guarantee to obtain power supply volume at work It supports, it is the prior art that this, which is electrically connected, and belongs to those skilled in the art's conventional techniques, therefore will not be repeated here.
In the present invention, when needing to grind curved surface cover board, L shape iron block 12 is pulled first, makes itself and magnet 13 are detached from, while raising cover board 11, and curved surface cover board is put into shell 1, then start aspiration pump 21, aspiration pump 21 is by leading Pipe 22, U-tube 23 and cylinder 25 make sucker 26 that curved surface cover board tightly be sucked, and can stablize placement, reach fixed curved surface lid The purpose of plate, while curved surface cover board will not be damaged, the mixing roll 9 to match with the curved surface cover board is inserted into rolling bearing 6 later In, and be attached with 72 output end of the first driving motor, start the first driving motor 72 and the second driving motor 73 later, the One driving motor 72 drives mixing roll 9 to rotate, and realizes that the personnel control second that proceeds with one's work drives to grinding outside curved surface cover board Dynamic 73 positive and negative rotation of motor, and then make to move back and forth before and after mixing roll 9 by gear 74 and rack gear 75, it realizes complete to curved surface cover board Face grinding, ensures the grinding quality of curved surface cover board, when the grinding of curved surface cover board, which finishes, to be needed to take out, after raising cover board 11 Valve 28 only need to be opened, which can effectively avoid the problem that curved surface cover board fixation procedure is damaged, and improve curved surface The safety of cover board processing, also can be improved the quality and aesthetics of the cover board processing of curved surface, and then improves curved surface cover board and add The qualification rate of work, when the grinding of curved surface cover board, starting suction ventilator 42, suction ventilator 42 pass through dust hopper 45 curved surface lid first The scrap collecting that plate grinding generates, and be transported in water tank 41 by suction ventilator 42 and tracheae 43, then clast passes through water tank 41 The interior soluble mixing of the water capacity, then water tank 41 is discharged by escape pipe 44 in clean air, which can effectively avoid grinding Clast pollutes surrounding enviroment, improves the environmental-protecting performance of the device.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.

Claims (9)

1. a kind of grinding device of curved surface cover board, including shell (1), which is characterized in that the upper surface of the shell (1) is fixed to be connected It is connected to fixed mechanism (2), the lower surface four corners of the shell (1) are fixedly connected to supporting leg (3), multiple supporting legs (3) outer wall is fixedly connected with dedusting mechanism (4) jointly, and the left and right inner wall of the shell (1) offers rectangular through-hole (5), The hole wall of the rectangular through-hole (5) slidably connects rolling bearing (6), the inner wall joint activity of two rolling bearings (6) It is connected with mixing roll (9), the side walls of the shell (1) are connected with the first sliding block (10), and the outer wall of the shell (1) opens up There is the first sliding groove matched with the first sliding block (10), first sliding block (10) is fixedly connected with far from the side of shell (1) The lower surface of driving mechanism (7), the driving mechanism (7) is fixedly connected with auxiliary body (8), the bottom of the auxiliary body (8) End and ground face contact.
2. a kind of grinding device of curved surface cover board according to claim 1, which is characterized in that fixed mechanism (2) packet The aspiration pump (21) being fixedly connected with shell (1) upper surface is included, the air inlet fixation of the aspiration pump (21) is communicated with conduit (22), the top fixation of the conduit (22) is communicated with U-tube (23), the fixed connection in two bottom ends of the U-tube (23) Have check valve (24), the fixation of the bottom end of two check valves (24) is communicated with cylinder (25), two cylinders (25) Bottom end both passes through the upper surface of shell (1) and fixation is communicated with sucker (26), and the outer wall of two cylinders (25) is fixed jointly It is communicated with connecting tube (27), the tube wall fixation of the connecting tube (27) is communicated with valve (28).
3. a kind of grinding device of curved surface cover board according to claim 1, which is characterized in that dedusting mechanism (4) packet The water tank (41) being fixedly connected jointly with multiple supporting legs (3) outer wall is included, the upper surface of the water tank (41) is fixedly connected with suction The output end of blower (42), the suction ventilator (42) is fixedly connected with tracheae (43), and the bottom end of the tracheae (43) passes through water tank (41) upper surface simultaneously extends downwardly, and the upper surface fixation of the water tank (41) is communicated with escape pipe (44), the shell (1) Inner wall is fixedly connected with dust hopper (45), the bottom end of the dust hopper (45) pass through shell (1) lower surface and with suction ventilator (42) The fixed connection of air inlet.
4. a kind of grinding device of curved surface cover board according to claim 1, which is characterized in that driving mechanism (7) packet The L shaped plate (71) being fixedly connected with the first sliding block (10) outer wall is included, the inner wall of the L shaped plate (71) is fixedly connected with the first driving The output end of motor (72), first driving motor (72) is fixedly connected by shaft coupling with the left side wall of mixing roll (9), institute The lower surface for stating L shaped plate (71) is fixedly connected with the second driving motor (73), and the output end of second driving motor (73) is solid Surely it is connected with gear (74), the outer wall of the shell (1) is fixedly connected with rack gear (75), the outer wall and gear of the rack gear (75) (74) outer wall engagement.
5. a kind of grinding device of curved surface cover board according to claim 1, which is characterized in that auxiliary body (8) packet The support rod (81) being fixedly connected with L shaped plate (71) lower surface is included, the bottom end of the support rod (81) is fixedly connected with universal rolling Pearl (82).
6. a kind of grinding device of curved surface cover board according to claim 1, which is characterized in that the side wall of the shell (1) Through-hole is offered, and the hole wall of through-hole is hinged with cover board (11) by multiple hinges, the outer wall of the cover board (11) is fixedly connected There is L shape iron block (12), the outer wall of the L shape iron block (12) is connected with magnet (13), and the magnet (13) is far from L shape iron block (12) one end is fixedly connected with the outer wall of shell (1).
7. a kind of grinding device of curved surface cover board according to claim 1, which is characterized in that the rolling bearing (6) Outer wall is fixedly connected there are two symmetrical the second sliding block (14), and the hole wall of the rectangular through-hole (5) is offered to be slided with second The second sliding slot that block (14) matches.
8. a kind of grinding device of curved surface cover board according to claim 3, which is characterized in that the upper table of the water tank (41) Face offers drainage hole, and the hole wall of drainage hole is threaded with sealing plug (15).
9. a kind of grinding device of curved surface cover board according to claim 1, which is characterized in that multiple supporting legs (3) Bottom end be fixedly connected to rubber pad.
CN201910760728.7A 2019-08-16 2019-08-16 A kind of grinding device of curved surface cover board Pending CN110303425A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910760728.7A CN110303425A (en) 2019-08-16 2019-08-16 A kind of grinding device of curved surface cover board

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910760728.7A CN110303425A (en) 2019-08-16 2019-08-16 A kind of grinding device of curved surface cover board

Publications (1)

Publication Number Publication Date
CN110303425A true CN110303425A (en) 2019-10-08

Family

ID=68083591

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910760728.7A Pending CN110303425A (en) 2019-08-16 2019-08-16 A kind of grinding device of curved surface cover board

Country Status (1)

Country Link
CN (1) CN110303425A (en)

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