CN110883673A - Automatic hardware polishing machine - Google Patents
Automatic hardware polishing machine Download PDFInfo
- Publication number
- CN110883673A CN110883673A CN201911232372.6A CN201911232372A CN110883673A CN 110883673 A CN110883673 A CN 110883673A CN 201911232372 A CN201911232372 A CN 201911232372A CN 110883673 A CN110883673 A CN 110883673A
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- Prior art keywords
- polishing
- drum
- box
- puncture
- plate
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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.)
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Classifications
-
- 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
- B24B29/00—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
- B24B29/02—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces
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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
- 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
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses an automatic hardware polishing machine, which structurally comprises a turnover cover, an observation plate, a polishing inner transparent box, an inner conveying box, a strainer and a support frame, wherein the turnover cover is hinged above the polishing inner transparent box through a hinge, the observation plate is connected to the surface of the turnover cover in a gluing manner, an expansion bag is expanded appropriately according to the hole size of a core spraying plate, an outer grinding drum is rotated outside the core spraying plate, the outer part of a water outlet of the core spraying plate is ground and polished into a pit, external impurities cannot stay on the surface of the core spraying plate, the impurities cannot block the position of the water outlet, the water flow of the water flow is more smooth, a rotary hopper and an ejection pile rotate to eject a turnover piece and an arc abrasive piece, the turnover piece is used for clearing the vicinity of the water inlet of the core spraying plate, burrs and corners in the turnover piece are treated, the circulation of the water flow is smoother and unimpeded, and the arc abrasive piece polishes the position in contact with a water pipe, the scale can not be stopped and accumulated, so that the spray core plate is smoother when in use.
Description
Technical Field
The invention relates to a hardware polishing machine, in particular to an automatic hardware polishing machine.
Background
The scope that the hardware was involved in hunting was extensive, roughly divide into building hardware and daily hardware, need produce the shower nozzle of using when the bathing in daily hardware, and some for the integration mould of spouting the core plate in the shower nozzle are pour and are formed, do not polish to inside orifice after pouring, cause the inconvenience when using easily, and the current technical consideration is not comprehensive, has following drawback:
the prior art does not polish the core plate that spouts in the shower nozzle, not only influences the circulation effect of rivers easily to there is the foul to block up outside easily, there is the incrustation scale siltation inside easily, lets the shower nozzle rivers inhomogeneous and the phenomenon that takes place to block up easily when using out water.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an automatic hardware polishing machine to solve the problems that the circulation effect of water flow is easily influenced, dirt is easily blocked outside, water scale is easily deposited inside, and the water flow is not uniform and is easily blocked when a spray head is used for discharging water because a spray core plate in the spray head is not polished in the prior art.
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides an automatic five metals burnishing machine, its structure is including turning over in book lid, observation board, the polishing case, defeated case in, elasticity valve, support frame, turn over the top of rolling over the lid and articulate the case in the polishing through the hinge, it connects on the surface of turning over the book lid to observe board glue, the below of defeated case in the polishing is failed in the welding of interior defeated case, elasticity valve is equipped with more than two and defeated case surface including threaded connection, the bottom of defeated case including the support frame passes through rivet locking.
In order to optimize the technical scheme, the method further comprises the following steps:
according to one implementation mode, the through box comprises interior box, chucking seat, supplementary gasket, the interior device of repairing that pierces through in the polishing, the top of defeated case including interior box electric welding, the chucking seat is equipped with two and the welding is in the inside bottom of box in, supplementary gasket is equipped with more than two and perpendicular swing joint in the top of chucking seat, the interior device of repairing that pierces through is equipped with two and through the inside top of buckle mechanical connection box in.
According to one implementation mode, the penetrating internal repair device is provided with two, the left penetrating internal repair device is composed of a penetrating positioning rod, a vibration pressing plate, a downward moving pile, a positioning frame and an air suction drum, the positioning frame is mechanically connected to the top of the inner box body, the downward moving pile is slidably connected to the lower portion of the positioning frame, the air suction drum is provided with two parts and is connected to the left end and the right end of the downward moving pile in an adhesive mode, the vibration pressing plate is movably attached to the bottom of the downward moving pile and is mechanically connected with the penetrating positioning rod, and the penetrating positioning rod is provided with more than two parts and is vertically slidably connected to the lower portion of the downward moving pile.
According to one implementation mode, the puncture locating lever is thrown by puncture rod, outer lane and is ground drum, blast bag, inner bag wear removal device and constitute, puncture rod perpendicular sliding connection moves down the below of stake, the outer lane is thrown and is ground the surface of drum nail connection at puncture rod first half, the blast bag passes through the middle section of buckle lock in puncture rod inside, inner bag wear removal device mechanical connection is in the inside bottom of puncture rod.
According to one implementation mode, the outer ring polishing and grinding drum is provided with two, the outer ring polishing and grinding drum of right-hand member comprises expansion bag, outer polishing drum, hinged frame and pay-off ball, the right side at the puncture rod is connected to outer polishing drum nail, hinged frame passes through rivet locking on the inside right side of outer polishing drum, pay-off ball swing joint is on the right side of hinged frame, expansion bag mechanical connection is on the right side of pay-off ball and with outer polishing drum activity laminating.
According to one implementation mode, the inner container wear removal device is by rotatory fill, turn over the cover plate, launch stake, arc abrasive disc and constitute, launch the stake and rotate the bottom of connecting in puncture rod inside, rotatory fill is perpendicular to be rotated and is connected in the inside of launching the stake, turn over the cover plate and pass through spring mechanical connection at the left and right sides both ends of launching the stake, the arc abrasive disc passes through the laminating of buckle activity in the bottom of launching the stake.
Advantageous effects
The automatic hardware polishing machine is reasonable in design and strong in functionality, and has the following beneficial effects:
according to the invention, the expansion bag is properly expanded through the outer ring polishing and grinding drum according to the hole size of the core spraying plate, the outer polishing drum rotates outside the core spraying plate, the outer part of the water outlet of the core spraying plate is polished into a pit, external impurities cannot stay on the surface of the outer polishing and grinding drum, the impurities cannot block the position of the water outlet, and the water flow of the water flow is smoother.
The inner container wear-eliminating device is arranged, so that the rotary hopper and the ejection pile rotate to eject the turnover sheet and the arc-shaped grinding sheet, the turnover sheet is used for clearing the position near the water inlet of the core spraying plate, burrs and corners in the turnover sheet are treated, the circulation of water flow is smoother and unimpeded, the arc-shaped grinding sheet is used for polishing the position in contact with a water pipe, water scale cannot be remained and accumulated, and the core spraying plate is smoother when in use.
Drawings
Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of the embodiments of the invention when taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic structural diagram of an automatic hardware polishing machine according to the present invention.
FIG. 2 is a schematic structural diagram of the interior of the polishing inner transparent box of the automatic hardware polishing machine of the invention.
FIG. 3 is a detailed structural diagram of the penetrating inner repair device of the automatic hardware polishing machine according to the present invention.
FIG. 4 is a schematic structural diagram of the inside of the piercing positioning rod of the automatic hardware polishing machine of the invention.
FIG. 5 is a schematic structural diagram of the outer ring polishing drum of the automatic hardware polishing machine according to the present invention.
FIG. 6 is a schematic structural diagram of the liner wear-eliminating device of the automatic hardware polishing machine according to the present invention.
Description of reference numerals: the device comprises a turnover cover 0, an observation plate 1, a polishing inner transparent box 2, an inner conveying box 3, a strainer 4, a support frame 5, an inner box body 20, a clamping seat 21, an auxiliary gasket 22, a penetrating inner repairing device 23, a puncture positioning rod 230, a vibration pressing plate 231, a downward moving pile 232, a positioning frame 233, a suction drum 234, a puncture rod 300, an outer ring polishing drum 400, a blast bag 500, an inner container wear eliminating device 600, an expansion bag 4000, an outer polishing drum 4001, a hinge frame 4002, a pay-off ball 4003, a rotary hopper 6000, a turnover sheet 6001, an ejection pile 6002 and an arc grinding sheet 6003.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Referring to fig. 1, the present invention provides an automatic hardware polishing machine: its structure is including turning over a lid 0, observing board 1, polishing in case 2, defeated case 3 in, elasticity valve 4, support frame 5, turn over a lid 0 and articulate the top at case 2 in the polishing through the hinge, observe board 1 glue connection and on the surface of turning over a lid 0, defeated case 3 welding is in the below of case 2 in the polishing in, elasticity valve 4 is equipped with more than two and defeated case 3 surface including threaded connection, defeated case 3's bottom including support frame 5 passes through rivet locking.
Referring to fig. 2, the polishing inner transparent box 2 is composed of an inner box body 20, two clamping seats 21, an auxiliary gasket 22 and a penetrating inner repairing device 23, the inner box body 20 is electrically welded above the inner transmission box 3, the two clamping seats 21 are welded at the bottom inside the inner box body 20, the auxiliary gasket 22 is provided with more than two gaskets and is vertically movably connected above the clamping seats 21, the two penetrating inner repairing devices 23 are mechanically connected at the top inside the inner box body 20 through buckles, and the auxiliary gasket 22 can fix the unprocessed position of the spraying core plate fixed on the clamping seats 21 and share vibration force during polishing, so that the phenomenon of translocation and polishing errors can be prevented.
Referring to fig. 3, the penetrating internal repair device 23 includes two penetrating internal repair devices 23, the left penetrating internal repair device 23 includes a penetrating positioning rod 230, a vibration pressing plate 231, a downward moving pile 232, a positioning frame 233, and a suction drum 234, the positioning frame 233 is mechanically connected to the top of the inner box 20, the downward moving pile 232 is slidably connected to the lower portion of the positioning frame 233, the suction drum 234 is provided with two suction drums 234 and is connected to the left and right ends of the inner portion of the downward moving pile 232, the vibration pressing plate 231 is movably attached to the bottom of the inner portion of the downward moving pile 232 and is mechanically connected to the penetrating positioning rod 230, the penetrating positioning rod 230 is provided with more than two suction drums and is vertically slidably connected to the lower portion of the downward moving pile 232, the internal suction drum 234 can blow out powder generated during polishing in time, thereby preventing the appearance of the core plate from being damaged after staying, the downward moving pile 232 can make the penetrating positioning, so that the whole polishing work can penetrate through the whole core spraying plate.
Referring to fig. 4, the puncture positioning rod 230 is composed of a puncture rod 300, an outer ring polishing and grinding drum 400, an air blowing bag 500 and a liner wear-removing device 600, the puncture rod 300 is vertically and slidably connected below the downward moving pile 232, the outer ring polishing and grinding drum 400 is connected to the outer surface of the upper half portion of the puncture rod 300 in a nailing manner, the air blowing bag 500 is buckled at the middle section inside the puncture rod 300 through a buckle, the liner wear-removing device 600 is mechanically connected to the bottom inside the puncture rod 300, the puncture rod 300 can penetrate through the whole water outlet pipe to polish the inside of the water outlet pipe, so that water flow is smoother, the air blowing bag 500 can timely blow out powder on the inner side, and the phenomenon of roughness caused by friction after polishing is prevented.
Referring to fig. 5, the outer ring polishing drum 400 is provided with two outer ring polishing drums 400, the outer ring polishing drum 400 at the right end is composed of an expansion bag 4000, an outer polishing drum 4001, a hinge frame 4002 and a wire releasing ball 4003, the outer polishing drum 4001 is connected to the right side of the puncture rod 300 in a nailed manner, the hinge frame 4002 is locked at the right side inside the outer polishing drum 4001 through rivets, the wire releasing ball 4003 is movably connected to the right side of the hinge frame 4002, the expansion bag 4000 is mechanically connected to the right side of the wire releasing ball 4003 and movably attached to the outer polishing drum 4001, the expansion bag 4000 can be adjusted, the outer polishing drum 4001 can touch the outside of the spraying core plate, the polishing effect of the spraying core plate is optimal, and the outer polishing drum 4001 can polish water outlets into small smooth concave holes, so that sundries cannot be accumulated outside.
Referring to fig. 6, the liner wear-eliminating device 600 is composed of a rotating bucket 6000, a turnover piece 6001, an ejection pile 6002 and an arc-shaped grinding piece 6003, the ejection pile 6002 is rotatably connected to the bottom inside the puncture rod 300, the rotating bucket 6000 is vertically rotatably connected to the inside of the ejection pile 6002, the turnover piece 6001 is mechanically connected to the left end and the right end of the ejection pile 6002 through springs, the arc-shaped grinding piece 6003 is movably attached to the bottom of the ejection pile 6002 through a buckle, the connection between the water inlet and the water pipe can be polished smoothly by the turnover piece 6001 and the arc-shaped grinding piece 6003, and scale can be prevented from being deposited when water enters the liner wear-eliminating device without being blocked.
When the core spraying plate is to be processed and polished, the turnover cover 0 is opened, the core spraying plate to be polished is placed on the clamping seat 21, the position without holes on the core spraying plate is fixed through the auxiliary gasket 22, the downward moving pile 232 is started to descend from the positioning frame 233, the puncture rod 300 penetrates through the core spraying plate, the wire releasing ball 4003 rotates to push out the expansion bag 4000, the expansion bag 4000 rotates to polish the position of the water outlet end, the accumulation of external substances is stopped from the outside, the external powder is completely blown away by the air suction drum 234 in the polishing process, the powder cannot be accumulated, the puncture rod 300 enters the water conveying pipe and rotates to polish the water passage of the puncture rod, finally, the rotation of the rotary hopper 6000 and the ejection pile 6002 ejects the turnover abrasive disc 6001 and the arc abrasive disc 6003, the water inlet of the core spraying plate water inlet pipe is polished, and the whole body is polished from three positions, the hardware spray head is processed from the water inlet, the water delivery pipe and the water outlet respectively, so that the hardware spray head can be more smooth when being used for water inlet, water delivery and water outlet, and the using effect of hardware is improved.
According to the invention, through the mutual combination of the components, the expansion bag 4000 is properly expanded according to the hole size of the spray core plate, the outer grinding drum 4001 is rotated outside the spray core plate, the outer part of the water outlet of the spray core plate is ground and polished into a pit, so that external impurities cannot stay on the surface of the outer grinding drum 4001 and cannot block the position of the water outlet, the water flow of the outer grinding drum 4001 is more smooth, the rotary hopper 6000 and the ejection pile 6002 are rotated to eject the turnover sheet 6001 and the arc grinding sheet 6003, the turnover sheet 6001 is cleared near the water inlet of the spray core plate, burrs and corners in the outer grinding drum are treated, the water flow is more smooth and has no obstruction, the arc grinding sheet 6003 is polished at the position contacting with the water pipe, and scales cannot stay and accumulate, so that the spray core plate is more smooth when in use.
The specific embodiments described herein are merely illustrative of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims appended hereto.
Claims (6)
1. The utility model provides an automatic five metals burnishing machine, its structure includes turnover cover (0), observation board (1), polishing interior transparent case (2), interior defeated case (3), elasticity valve (4), support frame (5), its characterized in that:
the polishing transparent box is characterized in that the turnover cover (0) is arranged above the polishing inner transparent box (2), the observation plate (1) is tightly attached to the surface of the turnover cover (0), the inner transparent box (3) is fixedly arranged below the polishing inner transparent box (2), the elastic valve (4) is provided with more than two parts and is fastened on the surface of the inner transparent box (3), and the support frame (5) is positioned at the bottom of the inner transparent box (3).
2. The automatic hardware polishing machine of claim 1, wherein: pass through case (2) in the polishing by interior box (20), chucking seat (21), supplementary gasket (22), pierce through interior trimming device (23) and constitute, the top of defeated case (3) including interior box (20) are fixed, chucking seat (21) are equipped with two and install in the inside bottom of interior box (20), supplementary gasket (22) are equipped with more than two and the vertical fixation in the top of chucking seat (21), pierce through interior trimming device (23) and be equipped with two and the top of lock catch in interior box (20) inside.
3. The automatic hardware polishing machine of claim 2, wherein: the penetrating internal repair device (23) is provided with two, the left penetrating internal repair device (23) consists of a penetrating positioning rod (230), a vibrating pressing plate (231), downward moving piles (232), a positioning frame (233) and an air suction drum (234), the positioning frame (233) is fixedly arranged at the top inside the inner box body (20), the downward moving piles (232) are connected below the positioning frame (233), the air suction drum (234) is provided with two parts and is arranged at the left end and the right end inside the downward moving piles (232), the vibrating pressing plate (231) is attached to the bottom inside the downward moving piles (232) and is connected with the penetrating positioning rod (230), and the penetrating positioning rod (230) is provided with more than two parts and is vertically fixed below the downward moving piles (232).
4. The automatic hardware polishing machine of claim 3, wherein: puncture locating lever (230) are thrown by puncture pole (300), outer lane and are ground drum (400), blast bag (500), inner bag abrasion-proof device (600) and constitute, puncture pole (300) vertical fixation moves down the below of stake (232), outer lane is thrown and is ground drum (400) fastening at puncture pole (300) first half's surface, the middle section in puncture pole (300) inside is installed in blast bag (500), inner bag abrasion-proof device (600) are connected in puncture pole (300) inside bottom.
5. The automatic hardware polishing machine of claim 4, wherein: the outer ring polishing and grinding drum (400) is provided with two, the outer ring polishing and grinding drum (400) of the right end is composed of an expansion bag (4000), an outer polishing drum (4001), a hinging frame (4002) and a line releasing ball (4003), the outer polishing drum (4001) is connected to the right side of the puncture rod (300), the hinging frame (4002) is fixed on the right side of the inner part of the outer polishing drum (4001), the line releasing ball (4003) is located on the right side of the hinging frame (4002), and the expansion bag (4000) is connected to the right side of the line releasing ball (4003) and is tightly attached to the outer polishing drum (4001).
6. The automatic hardware polishing machine of claim 4, wherein: inner bag wear-eliminating device (600) comprises rotation fill (6000), cover piece (6001), launch stake (6002), arc abrasive disc (6003), launch the inside bottom of pole (300) of puncture, rotation fill (6000) is installed perpendicularly in the inside of launching stake (6002), both ends about launching stake (6002) are connected in cover piece (6001), arc abrasive disc (6003) lock is in the bottom of launching stake (6002).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201911232372.6A CN110883673A (en) | 2019-12-05 | 2019-12-05 | Automatic hardware polishing machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201911232372.6A CN110883673A (en) | 2019-12-05 | 2019-12-05 | Automatic hardware polishing machine |
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CN110883673A true CN110883673A (en) | 2020-03-17 |
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Family Applications (1)
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CN201911232372.6A Withdrawn CN110883673A (en) | 2019-12-05 | 2019-12-05 | Automatic hardware polishing machine |
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Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0868975A1 (en) * | 1997-04-04 | 1998-10-07 | Tokyo Seimitsu Co.,Ltd. | Polishing apparatus |
CN202151821U (en) * | 2011-06-20 | 2012-02-29 | 珠海和氏自动化设备有限公司 | Device for polishing inner hole of workpiece |
CN205734212U (en) * | 2016-05-06 | 2016-11-30 | 钦州学院 | A kind of milling tools for hole inwall |
CN106312824A (en) * | 2016-09-27 | 2017-01-11 | 洪腾生 | High-speed variable-frequency dust-collecting and water-circulating polishing equipment |
CN207272972U (en) * | 2017-09-27 | 2018-04-27 | 汪洋 | Polishing machine |
CN107971916A (en) * | 2017-12-28 | 2018-05-01 | 谢云琼 | A kind of tubing polishing machine easy to adjusting emery wheel lifting |
CN108274335A (en) * | 2018-03-30 | 2018-07-13 | 宁波高新区新柯保汽车科技有限公司 | Automobile casting sanding and polishing device |
CN109015323A (en) * | 2018-08-21 | 2018-12-18 | 德阳市旌龙再生资源有限公司 | A kind of stainless steel tube burnishing device |
CN110465854A (en) * | 2019-07-15 | 2019-11-19 | 瞿佳丽 | A kind of burr removal device of machinery spool parts |
-
2019
- 2019-12-05 CN CN201911232372.6A patent/CN110883673A/en not_active Withdrawn
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0868975A1 (en) * | 1997-04-04 | 1998-10-07 | Tokyo Seimitsu Co.,Ltd. | Polishing apparatus |
CN202151821U (en) * | 2011-06-20 | 2012-02-29 | 珠海和氏自动化设备有限公司 | Device for polishing inner hole of workpiece |
CN205734212U (en) * | 2016-05-06 | 2016-11-30 | 钦州学院 | A kind of milling tools for hole inwall |
CN106312824A (en) * | 2016-09-27 | 2017-01-11 | 洪腾生 | High-speed variable-frequency dust-collecting and water-circulating polishing equipment |
CN207272972U (en) * | 2017-09-27 | 2018-04-27 | 汪洋 | Polishing machine |
CN107971916A (en) * | 2017-12-28 | 2018-05-01 | 谢云琼 | A kind of tubing polishing machine easy to adjusting emery wheel lifting |
CN108274335A (en) * | 2018-03-30 | 2018-07-13 | 宁波高新区新柯保汽车科技有限公司 | Automobile casting sanding and polishing device |
CN109015323A (en) * | 2018-08-21 | 2018-12-18 | 德阳市旌龙再生资源有限公司 | A kind of stainless steel tube burnishing device |
CN110465854A (en) * | 2019-07-15 | 2019-11-19 | 瞿佳丽 | A kind of burr removal device of machinery spool parts |
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Application publication date: 20200317 |