CN111300200A - Automatic edge grinding device for mechanical parts - Google Patents

Automatic edge grinding device for mechanical parts Download PDF

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Publication number
CN111300200A
CN111300200A CN202010199360.4A CN202010199360A CN111300200A CN 111300200 A CN111300200 A CN 111300200A CN 202010199360 A CN202010199360 A CN 202010199360A CN 111300200 A CN111300200 A CN 111300200A
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CN
China
Prior art keywords
fixedly connected
workbench
driving motor
rotating
side plates
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Granted
Application number
CN202010199360.4A
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Chinese (zh)
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CN111300200B (en
Inventor
陈思涵
郑清源
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Ningbo Qingyuan Electrical Technology Co.,Ltd.
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Individual
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Publication of CN111300200A publication Critical patent/CN111300200A/en
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Publication of CN111300200B publication Critical patent/CN111300200B/en
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    • 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
    • B24B9/00Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02Machines 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
    • B24B9/04Machines 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
    • 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
    • B24B41/00Component parts such as frames, beds, carriages, headstocks
    • B24B41/005Feeding or manipulating devices specially adapted to grinding machines
    • 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
    • B24B41/00Component parts such as frames, beds, carriages, headstocks
    • B24B41/06Work supports, e.g. adjustable steadies
    • 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
    • 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 invention discloses an automatic edge grinding device for mechanical accessories, which relates to the technical field of machining of the mechanical accessories and comprises a workbench, wherein four corners of the bottom end of the workbench are fixedly connected with supporting legs, two ends of the top of the workbench are provided with side plates, the side plates are in sliding connection with the workbench, one adjacent sides of the two side plates are provided with pressing and grinding devices, an air purification device is arranged at the top end between the two side plates, two ends of the bottom of the workbench are fixedly connected with a first telescopic rod, the bottom end of the first telescopic rod is fixedly connected with a pulling plate, the top end of the pulling plate is fixedly connected with a fixing plate, a feeding and grinding device is arranged between the two fixing plates, the side edges of the side plates are provided with shielding mechanisms, and the side edges of the workbench are provided with clamping and driving mechanisms.

Description

Automatic edge grinding device for mechanical parts
Technical Field
The invention relates to the technical field of machining of mechanical parts, in particular to an automatic edge grinding device for the mechanical parts.
Background
Burr can be remained usually when mechanical parts shaping, need get rid of the burr through grinding device during the finish machining, however traditional grinding device limitation is too big, can not satisfy all mechanical parts, however traditional grinding device vibrations are great in work, not only grinding device is unstable in work, and can increase the error that mechanical parts adds man-hour, not only harm grinding device like this, and the mechanical parts after can making polish is unqualified, seriously influence product quality, in mechanical parts course of working, in order to improve mechanical parts's quality and life, need polish mechanical parts's surface.
The Chinese patent publication No. CN107671723A discloses an automatic edge grinding device for machine parts, which comprises an upper clamping plate and a lower clamping plate, a spring fixed between the upper clamping plate and the lower clamping plate via a rotary bolt, a third driving motor rotating to drive a main gear to rotate, a secondary gear rotating to drive a rack to move, a second driving motor moving to drive a turntable to move, a second driving motor rotating to drive a turntable to rotate, a grinding block on the turntable rotating disc rotating at high speed to grind edges of the machine parts, a screw rod rotating to drive a movable seat screwed on the screw rod to move after grinding one edge, a nozzle spraying water on the machine parts via a water pump, thereby achieving the effect of removing impurities and better edging. According to the invention, the gear and the rack are meshed, so that the grinding block can move up and down, and the mechanical accessories are automatically ground, so that the grinding is more uniform and the grinding effect is better. But the device can only polish two sides of machine parts, can't polish other faces of machine parts, in addition, the device can't go on automatically when unloading, comparatively inconvenient.
Disclosure of Invention
The invention provides an automatic edge sanding device for mechanical parts, which solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a machine parts's automatic dull polish limit device, includes the workstation, the equal fixed connection supporting leg in bottom four corners of workstation, the top both ends of workstation all are equipped with the curb plate, curb plate and workstation sliding connection, one side that two curb plates are adjacent all is equipped with compresses tightly grinding device, top between two curb plates is equipped with air purification device, the first telescopic link of the equal fixed connection in bottom both ends of workstation, the bottom fixed connection arm-tie of first telescopic link, the top fixed connection fixed plate of arm-tie, be equipped with pay-off grinding device between two fixed plates, the side of curb plate is equipped with shelters from the mechanism, and the side of workstation is equipped with and presss from both sides tight actuating mechanism.
As a preferred technical scheme of the invention, the clamping driving mechanism comprises a sliding groove arranged on the side edge of the workbench, two sliding blocks corresponding to the side plates are connected in the sliding groove in a sliding manner, the top ends of the sliding blocks are fixedly connected with the side plates, the two sliding blocks penetrate through and are in threaded connection with the screw rod, the end part of the workbench is fixedly connected with a first driving motor, and the output shaft of the first driving motor is coaxially and fixedly connected with the screw rod.
According to a preferable technical scheme, the compressing and polishing device comprises a rotating seat and a rotating ring which are rotatably connected to the side plate, the rotating ring is located outside the rotating seat, one end, far away from the side plate, of the rotating seat is fixedly connected with a plurality of second telescopic rods, telescopic ends of the second telescopic rods are fixedly connected with pressing blocks, one end, far away from the side plate, of the rotating ring is fixedly connected with a fixing rod, and one end, far away from the rotating ring, of the fixing rod is fixedly connected with a polishing disc.
As a preferable technical solution of the present invention, the side plate is fixedly connected with a fourth driving motor, an output shaft of the fourth driving motor is fixedly connected with a driving gear, an outer gear ring is arranged on the outer side of the rotating ring, the driving gear is meshed with the outer gear ring, a fifth driving motor is fixedly connected to the outer portion of the side plate, and an output shaft of the fifth driving motor is coaxially and fixedly connected with the rotating base.
As a preferred technical solution of the present invention, the second telescopic rod includes an outer sleeve rod and a movable pressing rod, one end of the movable pressing rod is located in the outer sleeve rod and is fixedly connected to a pressing spring, and one end of the pressing spring, which is far away from the movable pressing rod, is fixedly connected to an end portion in the outer sleeve rod.
According to a preferable technical scheme, the feeding and polishing device comprises a turnover seat, the turnover seat is coaxially and fixedly connected with a rotating shaft, a third driving motor is fixedly arranged in the turnover seat, an output shaft of the third driving motor is in transmission connection with the rotating shaft, the rotating shaft is in rotating connection with a fixed plate, and a placing groove is formed in one side of the turnover seat.
As a preferred technical scheme of the invention, one end of the turnover seat, which is far away from the placing groove, is rotatably connected with the polishing wheel, and a second driving motor is arranged in the turnover seat and is in transmission connection with the polishing wheel.
As a preferred technical scheme of the invention, the air purification device comprises top plates fixedly arranged at the top ends of the side plates, a telescopic cover is fixedly connected between the top plates at the top parts of the two side plates, a negative pressure fan and a filtering device are fixedly connected to the top plates, the input end of the negative pressure fan is communicated with the inside of the telescopic cover, and the output end of the negative pressure fan is communicated with the filtering device through a pipeline.
As a preferable technical solution of the present invention, the filter device includes a filter cartridge, and activated carbon is filled in the filter cartridge.
As a preferable technical scheme of the invention, the shielding mechanism comprises a receiving groove arranged on one side edge of one side plate, a winding shaft is rotatably connected in the receiving groove, a spiral spring is arranged at the joint of the winding shaft and the side plate, a stop curtain is fixedly connected to the outside of the winding shaft and wound on the winding shaft, one end of the stop curtain far away from the winding shaft is fixedly connected with a hook, and a hanging ring corresponding to the hook is fixedly arranged on the side edge of the other side plate.
The invention has the following advantages: according to the invention, the clamping driving mechanism and the pressing and polishing device are arranged to clamp two sides of a mechanical accessory and polish and deburr the sides, the feeding and polishing device is arranged to feed an object to be polished and polish other sides, the air purification device is arranged to absorb and purify smoke dust generated by polishing, and the shielding mechanism is arranged to shield during polishing operation, so that human body injury caused by splashing of metal fragments generated by polishing is avoided.
Drawings
FIG. 1 is a schematic view of an automated sanding apparatus for mechanical parts.
Fig. 2 is a schematic structural diagram of a feeding and grinding device in an automatic edge grinding device of a mechanical accessory.
Fig. 3 is a schematic structural diagram of a pressing and polishing device in an automatic sanding device of a mechanical accessory.
In the figure: 1. a work table; 2. supporting legs; 3. a side plate; 4. compressing the polishing device; 5. a first telescopic rod; 6. pulling a plate; 7. a fixing plate; 8. a feeding and polishing device; 9. a chute; 10. a screw rod; 11. a slider; 12. a first drive motor; 13. a top plate; 14. a telescopic cover; 15. an air purification device; 16. a negative pressure fan; 17. a turning seat; 18. a placement groove; 19. a second drive motor; 20. grinding the wheel; 21. a rotating shaft; 22. a third drive motor; 23. a rotating seat; 24. a second telescopic rod; 25. briquetting; 26. a rotating ring; 27. fixing the rod; 28. grinding disc; 29. an outer ring gear; 30. a receiving groove; 31. a curtain; 32. hooking; 33. hanging a ring; 34. a fourth drive motor; 35. and a fifth driving motor.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Example 1
Referring to fig. 1-3, an automatic burr grinding device for machine parts comprises a workbench 1, supporting legs 2 are fixedly connected to four corners of the bottom of the workbench 1, side plates 3 are arranged at two ends of the top of the workbench 1, the side plates 3 are slidably connected with the workbench 1, pressing and polishing devices 4 are arranged on one sides of the two adjacent side plates 3, an air purifying device is arranged on the top end between the two side plates 3, a first telescopic rod 5 is fixedly connected to two ends of the bottom of the workbench 1, a pull plate 6 is fixedly connected to the bottom of the first telescopic rod 5, a fixed plate 7 is fixedly connected to the top of the pull plate 6, a feeding and polishing device 8 is arranged between the two fixed plates 7, a shielding mechanism is arranged on the side edge of each side plate 3, and a clamping driving mechanism is arranged on the side edge of the.
The clamping driving mechanism comprises a sliding groove 9 arranged on the side edge of the workbench 1, two sliding blocks 11 corresponding to the side plates 3 are connected in the sliding groove 9 in a sliding mode, the top end of each sliding block 11 is fixedly connected with the side plates 3, the two sliding blocks 11 are all penetrated and connected with a screw rod 10 in a threaded mode, the end portion of the workbench 1 is fixedly connected with a first driving motor 12, and an output shaft of the first driving motor 12 is coaxially and fixedly connected with the screw rod 10.
Compress tightly grinding device 4 including rotating seat 23 and the swivel becket 26 of rotation connection on curb plate 3, swivel becket 26 is located the outside of rotating seat 23, rotates a plurality of second telescopic links 24 of the one end fixed connection that curb plate 3 was kept away from to seat 23, the flexible end fixed connection briquetting 25 of second telescopic link 24, and the one end fixed connection dead lever 27 of curb plate 3 is kept away from to swivel becket 26, and the one end fixed connection who swivels becket 26 is kept away from to dead lever 27 beats the mill 28.
The side plate 3 is fixedly connected with a fourth driving motor 34, an output shaft of the fourth driving motor 34 is fixedly connected with a driving gear, an outer gear ring 29 is arranged on the outer side of the rotating ring 26, the driving gear is meshed with the outer gear ring 29, the outer part of the side plate 3 is fixedly connected with a fifth driving motor 35, and an output shaft of the fifth driving motor 35 is coaxially and fixedly connected with the rotating seat 23.
The second telescopic rod 24 comprises an outer sleeve rod and a movable pressing rod, one end of the movable pressing rod is located in the outer sleeve rod and is fixedly connected with a compression spring, and one end, far away from the movable pressing rod, of the compression spring is fixedly connected with the end part in the outer sleeve rod.
Pay-off grinding device 8 includes upset seat 17, and the coaxial fixed connection axis of rotation 21 of upset seat 17, the internal fixation of upset seat 17 is equipped with third driving motor 22, and third driving motor 22's output shaft is connected with the transmission of axis of rotation 21, and axis of rotation 21 rotates with fixed plate 7 to be connected, and standing groove 18 has been seted up to one side of upset seat 17.
One end of the turning seat 17, which is far away from the placing groove 18, is rotatably connected with a polishing wheel 20, a second driving motor 19 is arranged in the turning seat 17, and the second driving motor 19 is in transmission connection with the polishing wheel 20.
The air purification device comprises a top plate 13 fixedly arranged at the top ends of the side plates 3, a telescopic cover 14 is fixedly connected between the top plates 13 at the tops of the two side plates 3, a negative pressure fan 16 and a filtering device 15 are fixedly connected to the top plate 13, the input end of the negative pressure fan 16 is communicated with the inside of the telescopic cover 14, and the output end of the negative pressure fan 16 is communicated with the filtering device 15 through a pipeline.
The filtering device 15 includes a filter cartridge filled with activated carbon.
Example 2
Referring to fig. 1-3, the other contents of the present embodiment are the same as embodiment 1, except that: the shielding mechanism comprises an accommodating groove 30 arranged on the side edge of one side plate 3, a winding shaft is rotatably connected in the accommodating groove 30, a spiral spring is arranged at the joint of the winding shaft and the side plate 3, a blocking curtain 31 is fixedly connected to the outside of the winding shaft, the blocking curtain 31 is wound on the winding shaft, one end of the blocking curtain 31, far away from the winding shaft, is fixedly connected with a hook 32, and a hanging ring 33 corresponding to the hook 32 is fixedly arranged on the side edge of the other side plate 3.
In the implementation process of the invention, a workpiece to be polished is placed in the placing groove 18, then the first telescopic rod 5 is contracted to convey the workpiece to a position between the two pressing and polishing devices 4, the first driving motor 12 is started to move the two pressing and polishing devices 4 until the pressing block 25 presses the workpiece, the first telescopic rod 5 is reset, the second telescopic rod 24 is contracted until the polishing disc 28 is tightly attached to the surface of the workpiece in the pressing process of the pressing block 25, the third driving motor 22 is started to polish the workpiece, the third driving motor 22 is started to turn the turnover seat over after polishing is finished, then the first telescopic rod 5 is started again to lift the turnover seat 17 until the polishing wheel contacts the workpiece, the second driving motor 19 is started to polish the workpiece, and the fifth driving motor 35 is started to rotate the workpiece in the polishing process, so that the periphery of the workpiece can be polished.
According to the invention, the clamping driving mechanism and the pressing and polishing device 4 are arranged to clamp two sides of a mechanical accessory and polish and deburr the sides, the feeding and polishing device 8 is arranged to feed an object to be polished and polish other sides, the air purification device is arranged to absorb and purify smoke dust generated by polishing, and the shielding mechanism is arranged to shield during polishing so as to prevent human body from being injured due to splashing of metal fragments generated by polishing.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. An automatic edge grinding device for mechanical accessories comprises a workbench (1), four corners at the bottom end of the workbench (1) are fixedly connected with supporting legs (2), it is characterized in that both ends of the top of the workbench (1) are provided with side plates (3), the side plates (3) are connected with the workbench (1) in a sliding way, one side adjacent to the two side plates (3) is provided with a pressing and polishing device (4), the top end between the two side plates (3) is provided with an air purification device, both ends of the bottom of the workbench (1) are fixedly connected with a first telescopic rod (5), the bottom end of the first telescopic rod (5) is fixedly connected with a pulling plate (6), the top end of the pulling plate (6) is fixedly connected with a fixed plate (7), a feeding and polishing device (8) is arranged between the two fixed plates (7), the side of the side plate (3) is provided with a shielding mechanism, and the side of the workbench (1) is provided with a clamping driving mechanism.
2. The automatic sanding device for mechanical parts according to claim 1, wherein the clamping driving mechanism comprises a sliding groove (9) formed in the side edge of the workbench (1), two sliding blocks (11) corresponding to the side plates (3) are slidably connected in the sliding groove (9), the top ends of the sliding blocks (11) are fixedly connected with the side plates (3), the two sliding blocks (11) penetrate through and are in threaded connection with a screw rod (10), the end portion of the workbench (1) is fixedly connected with a first driving motor (12), and the output shaft of the first driving motor (12) is coaxially and fixedly connected with the screw rod (10).
3. The automatic sanding edge device of mechanical accessories of claim 2, characterized in that the pressing and grinding device (4) comprises a rotating seat (23) and a rotating ring (26) which are rotatably connected to the side plate (3), the rotating ring (26) is located outside the rotating seat (23), one end of the rotating seat (23) far away from the side plate (3) is fixedly connected with a plurality of second telescopic rods (24), a telescopic end of the second telescopic rods (24) is fixedly connected with a pressing block (25), one end of the rotating ring (26) far away from the side plate (3) is fixedly connected with a fixing rod (27), and one end of the fixing rod (27) far away from the rotating ring (26) is fixedly connected with a grinding disc (28).
4. The automatic sanding device for machine parts according to claim 3, characterized in that a fourth driving motor (34) is fixedly connected to the side plate (3), an output shaft of the fourth driving motor (34) is fixedly connected with a driving gear, an outer gear ring (29) is arranged on the outer side of the rotating ring (26), the driving gear is meshed with the outer gear ring (29), a fifth driving motor (35) is fixedly connected to the outer part of the side plate (3), and an output shaft of the fifth driving motor (35) is coaxially and fixedly connected with the rotating base (23).
5. The automated deburring device of claim 3, wherein said second telescoping rod (24) comprises an outer sleeve and a movable compression rod, one end of the movable compression rod is located in the outer sleeve and fixedly connected with a compression spring, and the end of the compression spring remote from the movable compression rod is fixedly connected with the end in the outer sleeve.
6. The automatic sanding device for mechanical parts according to claim 1, wherein the feeding and grinding device (8) comprises an overturning seat (17), the overturning seat (17) is coaxially and fixedly connected with a rotating shaft (21), a third driving motor (22) is fixedly arranged in the overturning seat (17), an output shaft of the third driving motor (22) is in transmission connection with the rotating shaft (21), the rotating shaft (21) is in rotating connection with the fixing plate (7), and a placing groove (18) is formed in one side of the overturning seat (17).
7. The automatic edge grinding device of mechanical accessories is characterized in that one end of the turnover seat (17) far away from the placing groove (18) is rotatably connected with a grinding wheel (20), a second driving motor (19) is arranged in the turnover seat (17), and the second driving motor (19) is in transmission connection with the grinding wheel (20).
8. The automatic deburring device of mechanical parts according to claim 1, characterized in that the air purifying device comprises a top plate (13) fixedly arranged at the top end of the side plates (3), a telescopic cover (14) is fixedly connected between the top plates (13) at the top of the two side plates (3), a negative pressure fan (16) and a filtering device (15) are fixedly connected on the top plate (13), the input end of the negative pressure fan (16) is communicated with the inside of the telescopic cover (14), and the output end of the negative pressure fan (16) is communicated with the filtering device (15) through a pipeline.
9. Automated deburring apparatus according to claim 8 wherein said filter means (15) comprises a filter cartridge filled with activated carbon.
10. The automatic burr grinding device of machine parts according to claim 7 or 8, characterized in that, the shielding mechanism comprises a receiving groove (30) arranged at one side of one of the side plates (3), the receiving groove (30) is rotatably connected with a winding shaft, a spring is arranged at the joint of the winding shaft and the side plate (3), a curtain (31) is fixedly connected to the outside of the winding shaft, the curtain (31) is wound on the winding shaft, one end of the curtain (31) far away from the winding shaft is fixedly connected with a hook (32), and a hanging ring (33) corresponding to the hook (32) is fixedly arranged at the side of the other side plate (3).
CN202010199360.4A 2020-03-20 2020-03-20 Automatic edge grinding device for mechanical parts Active CN111300200B (en)

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Application Number Priority Date Filing Date Title
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CN111300200B CN111300200B (en) 2021-02-26

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112371625A (en) * 2020-11-06 2021-02-19 株洲华信精密工业股份有限公司 Machining and cleaning integrated equipment for mechanical parts
CN114434163A (en) * 2022-03-14 2022-05-06 江苏国派新材料有限公司 Grinding device is cut to sheet metal limit end burr
CN117884994A (en) * 2024-03-15 2024-04-16 山西医科大学口腔医院 Grinding device is used in ceramic tooth production
CN117884994B (en) * 2024-03-15 2024-05-14 山西医科大学口腔医院 Grinding device is used in ceramic tooth production

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CN110465865A (en) * 2019-08-01 2019-11-19 广州市索德士皮具皮革贸易有限公司 A kind of heavy duty detergent grinding apparatus with collecting function for mold production
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KR20040105887A (en) * 2003-06-09 2004-12-17 주식회사 포스코 Roll grinding machine
CN205703665U (en) * 2016-03-15 2016-11-23 陈良 One can double-side-turning formula Multi-head polishing machine
CN206912943U (en) * 2017-02-21 2018-01-23 苏州宗荣金属制造有限公司 Sander automatic charging device
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112371625A (en) * 2020-11-06 2021-02-19 株洲华信精密工业股份有限公司 Machining and cleaning integrated equipment for mechanical parts
CN114434163A (en) * 2022-03-14 2022-05-06 江苏国派新材料有限公司 Grinding device is cut to sheet metal limit end burr
CN117884994A (en) * 2024-03-15 2024-04-16 山西医科大学口腔医院 Grinding device is used in ceramic tooth production
CN117884994B (en) * 2024-03-15 2024-05-14 山西医科大学口腔医院 Grinding device is used in ceramic tooth production

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Patentee before: Chen Sihan