CN105965104A - High-precision high-efficiency gear machining equipment - Google Patents

High-precision high-efficiency gear machining equipment Download PDF

Info

Publication number
CN105965104A
CN105965104A CN201610457817.0A CN201610457817A CN105965104A CN 105965104 A CN105965104 A CN 105965104A CN 201610457817 A CN201610457817 A CN 201610457817A CN 105965104 A CN105965104 A CN 105965104A
Authority
CN
China
Prior art keywords
gear
driving means
rotary shaft
machining apparatus
gear machining
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.)
Granted
Application number
CN201610457817.0A
Other languages
Chinese (zh)
Other versions
CN105965104B (en
Inventor
唐漪崑
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.)
ANHUI SANSHAN MACHINERY MANUFACTURING Co Ltd
Original Assignee
ANHUI SANSHAN MACHINERY MANUFACTURING 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 ANHUI SANSHAN MACHINERY MANUFACTURING Co Ltd filed Critical ANHUI SANSHAN MACHINERY MANUFACTURING Co Ltd
Priority to CN201610457817.0A priority Critical patent/CN105965104B/en
Publication of CN105965104A publication Critical patent/CN105965104A/en
Application granted granted Critical
Publication of CN105965104B publication Critical patent/CN105965104B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23FMAKING GEARS OR TOOTHED RACKS
    • B23F5/00Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made
    • B23F5/02Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made by grinding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23FMAKING GEARS OR TOOTHED RACKS
    • B23F23/00Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
    • B23F23/006Equipment for synchronising movement of cutting tool and workpiece, the cutting tool and workpiece not being mechanically coupled
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23FMAKING GEARS OR TOOTHED RACKS
    • B23F23/00Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
    • B23F23/02Loading, unloading or chucking arrangements for workpieces
    • B23F23/06Chucking arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

The invention discloses high-precision high-efficiency gear machining equipment. The high-precision high-efficiency gear machining equipment comprises a base, a rotation seat, two fixed mechanisms and a cutting mechanism, wherein the rotation seat is rotatably mounted on the base; each of the fixed mechanisms comprises two mounting rods, a first driving device and two compaction devices; each compaction device comprises a rotation shaft, a compaction block and a positioning shafts; the positioning shafts are coaxial with the rotation rods; the cutting mechanism comprises a case, a mounting shaft, a driving gear, a second driving device, an expansion link, a polishing member and a third driving device; the case is mounted on the base; the mounting shaft is rotatably mounted on the case; the driving gear is mounted on the mounting shaft; the driving gear is meshed with the rotation shaft in the aspect of shape; the second driving device is connected with the driving gear in a driving manner, and drives the driving gear to rotate; the expansion direction of the expansion link is a direction close to and far away from the positioning shafts; the polishing member is mounted on one side, close to the positioning shafts, of the expansion link. The gear machining equipment disclosed in the invention is high in machining precision, stable in structure, long in service life and high in work efficiency.

Description

A kind of high-accuracy high-efficiency rate gear machining apparatus
Technical field
The present invention relates to gear machining technology field, be specifically related to a kind of high-accuracy high-efficiency rate gear machining apparatus.
Background technology
Gear-shaping machine is the process equipment for adding work gear specially, generally includes a processing in this equipment Platform, is provided with processing pedestal in machine table, processing pedestal arranges sliding seat, sliding seat is provided with cutter Tool, cutter moves up and down on processing pedestal with sliding seat and is processed the gear installed on the table.
In existing gear-shaping machine, it is provided with guide plate in the both sides of processing pedestal, sets in the both sides of sliding seat Being equipped with slide block, slide block and guide plate are adjacent to, and sliding seat moves on processing pedestal, and slide block is guiding Slide on plate, owing to there is mutual frictional force between slide block and guide plate, in the course of time, slide block and guide plate The end face of contact can produce abrasion and form space between slide block and guide plate, so causes sliding seat adding Sliding on work pedestal unstable, mobile accuracy is poor, thus affects the machining accuracy of gear-shaping machine, and slide block Cannot be continuing with after abrasion, the service life also resulting in slide block is shorter, if changing, then causes slide block to use Insufficient, cause bigger waste.
Move it addition, sliding seat realizes it by screw drive mode, be i.e. provided with coaxial on processing pedestal The actuating sleeve of the heart and positioning sleeve, the two ends of screw rod lay respectively in actuating sleeve and positioning sleeve, and on sliding seat Relative set guide pin bushing, is installed with nut in guide pin bushing and screw rod is positioned in nut, and actuating sleeve drives screw rod constantly to turn Dynamic so that nut moves on screw rod, thus realize slip cap motion.In this structure, guide pin bushing and actuating sleeve, Positioning sleeve three's concentric is arranged, and it be same axle allocation mechanism, thus ensure stationarity that slip cap moves with Precision, but there is techniques below problem in existing this structure, and actuating sleeve and positioning sleeve remain concentric, And guide pin bushing and sliding seat are connected, sliding seat is installed on after being on processing pedestal, protects with positioning sleeve at actuating sleeve On the premise of card concentric, after sliding seat is installed, it is difficult to ensure that guide pin bushing and actuating sleeve, positioning sleeve three are same Axle center is arranged, and its positioning difficulty is relatively big, and positioning precision is relatively low, causes sliding seat to move instability, and cutter adds Work precision cannot ensure, to ensure guide pin bushing and actuating sleeve, positioning sleeve three's concentric, then sliding seat again without Method is installed easily, cause gear-shaping machine in-convenience in use.
Summary of the invention
The technical problem existed based on background technology, the present invention proposes a kind of high-accuracy high-efficiency rate Gear Processing Equipment.
A kind of high-accuracy high-efficiency rate gear machining apparatus that the present invention proposes, including: base, rotation seat, two Individual fixed mechanism and cutting mechanism;
Rotation seat may be rotatably mounted on base;
Two fixed mechanisms be arranged on rotation seat relative to both sides, fixed mechanism include two mounting rods, One driving means and two hold down gags;Two mounting rods are installed on rotation seat and are parallel to each other, two Hold down gag is separately mounted on two mounting rods;
Hold down gag includes rotary shaft, compact heap and locating shaft, and rotary shaft may be rotatably mounted at the installation of correspondence On bar, the first driving means drive connection rotary shaft, the first driving means drives and rotates axially another installation Bar near and be arranged on rotary shaft near another mounting rod side away from, compact heap, locating shaft is arranged on pressure Tight block is coaxially disposed with rotary shaft away from rotary shaft side, locating shaft;
Cutting mechanism includes cabinet, installs axle, driving gear, the second driving means, expansion link, polishing part With the 3rd driving means, cabinet is arranged on base, installs axle and may be rotatably mounted on cabinet, drives gear Install and drive gear shape to engage with rotary shaft shape on the mounting shaft, axle rotation is installed and can make driving gear position In the location status engaged with rotary shaft, the second driving means drive connection drives gear, the second driving means Drive pinion rotation;Expansion link telescopic direction is to lean on the direction into remotely located axle, and polishing part is arranged on to be stretched Contracting bar near locating shaft side, the 3rd driving means drive connection polishing part.
Preferably, polishing part is emery wheel, and the 3rd driving means drives emery wheel to rotate.
Preferably, cabinet being provided with sparge pipe, the mouth of pipe of sparge pipe is towards locating shaft.
Preferably, described high-accuracy high-efficiency rate gear machining apparatus also includes liquids recovery mechanism, liquid recovery machine Structure includes that the first impurity recycling box, the first impurity recycling box are arranged on mounting rod and are positioned at hold down gag lower end.
Preferably, the first impurity recycling box lower end is provided with liquid outlet.
Preferably, liquids recovery mechanism also includes the second impurity recycling box and liquid recovery tank;Second impurity reclaims Box is arranged on base and corresponding with liquid outlet position, the second impurity recycling box pipeline connection liquid recovery tank.
Preferably, in the second impurity recycling box, drainage screen is installed.
When the present invention works, fixed mechanism drives two rotary shafts close to each other by the first driving means, turns Moving axis moves and makes locating shaft snap onto in the through hole of gear to be processed, prevents gear to be processed from offseting, pressure Gear is fixed by tight block, and then rotation seat rotates, and is moved to and cutting mechanism by gear to be processed Corresponding position, installs axle and rotates and make driving gear be positioned at the location status engaged with rotary shaft, and second drives Dynamic device drives pinion rotation, expansion link according to the clearance control between the tooth needed on gear to be processed and tooth Outer diameter length according to gear to be processed moves, and a fixed mechanism is used for the same of gear polishing wherein Time, another fixed mechanism may be used for do not polish the fixing of gear and the recovery with the gear completing polishing. The machining accuracy height of the gear machining apparatus of the present invention, Stability Analysis of Structures, length in service life, work efficiency are high.
Accompanying drawing explanation
Fig. 1 is a kind of high-accuracy high-efficiency rate gear machining apparatus structural representation that the present invention proposes;
Fig. 2 is hold down gag structural representation of the present invention.
Detailed description of the invention
Shown in seeing figures.1.and.2, a kind of high-accuracy high-efficiency rate gear machining apparatus that the present invention proposes, bag Include: base 1, rotation seat 2, two fixed mechanisms and cutting mechanisms.
Rotation seat 2 may be rotatably mounted on base 1.
Two fixed mechanisms be arranged on rotation seat 2 relative to both sides, fixed mechanism include two mounting rods 31, First driving means 32 and two hold down gags;Two mounting rods 31 are installed on rotation seat 2 and mutual Parallel, two hold down gags are separately mounted on two mounting rods 31.
Hold down gag includes rotary shaft 331, compact heap 332 and locating shaft 333, and rotary shaft 331 is rotatably pacified It is contained on the mounting rod 31 of correspondence, the first driving means 32 drive connection rotary shaft 331, the first driving means 32 drive rotary shafts 331 to another mounting rod 31 near and away from, compact heap 332 is arranged on rotary shaft 331 are arranged on compact heap 332 away from rotary shaft 331 near another mounting rod 31 side, locating shaft 333 Side, locating shaft 333 is coaxially disposed with rotary shaft 331.
Cutting mechanism includes cabinet 41, installation axle 42, driving gear the 43, second driving means 44, stretches Bar 45, polishing part 46 and the 3rd driving means 47, cabinet 41 is arranged on base 1, and installing axle 42 can It is rotatably installed on cabinet 41, drives gear 43 to be arranged on installation axle 42 and drive gear 43 shape and turn Moving axis 331 shape engages, and installs axle 42 and rotates and driving gear 43 can be made to be positioned at engage with rotary shaft 331 Location status, the second driving means 44 drive connection drives gear 43, and the second driving means 44 drives gear 43 rotate;Expansion link 45 telescopic direction is to lean on the direction into remotely located axle 333, and polishing part 46 is installed At expansion link 45 near locating shaft 333 side, the 3rd driving means 47 drive connection polishing part 46, flexible Bar 45 can move along the direction being parallel to locating shaft 333 axis.
In present embodiment, polishing part 46 can select emery wheel, the 3rd driving means 47 to drive emery wheel to rotate.
In present embodiment, cabinet 41 being provided with sparge pipe 411, the mouth of pipe of sparge pipe 411 is towards locating shaft 333, this high-accuracy high-efficiency rate gear machining apparatus also includes that liquids recovery mechanism, liquids recovery mechanism include One impurity recycling box the 51, second impurity recycling box 52 and liquid recovery tank 53, the first impurity recycling box 51 is pacified Being contained on mounting rod 31 and be positioned at hold down gag lower end, the first impurity recycling box 51 lower end is provided with liquid outlet, Second impurity recycling box 52 is arranged on base 1 and corresponding with liquid outlet position, the second impurity recycling box 52 Pipeline connection liquid recovery tank 53, is provided with drainage screen in the second impurity recycling box 52.
When the present invention works, fixed mechanism drives two rotary shafts 331 mutually to lean on by the first driving means 32 Closely, rotary shaft moves and makes locating shaft 333 snap onto in the through hole of gear to be processed, prevents gear to be processed from sending out Raw skew, gear is fixed by compact heap 332, and then rotation seat 2 rotates, by gear to be processed Move to the position corresponding with cutting mechanism, axle 42 is installed and rotates and make driving gear 43 be positioned at and rotary shaft The location status of 331 engagements, the second driving means 44 is according between the tooth needed on gear to be processed and tooth Clearance control drives gear 43 to rotate, and expansion link 45 moves according to the outer diameter length of gear to be processed, A fixed mechanism is while gear is polished wherein, and another fixed mechanism may be used for tooth of not polishing Wheel fixing and and complete the recovery of gear of polishing, sparge pipe 411 sprays liquid and clears up polishing part polishing The impurity produced, and can lower the temperature when polishing, first impurity recycling box the 51, second impurity recycling box 52 Coordinate liquid and magazins' layout with liquid recovery tank 53 and reclaim, it is simple to continuing with of material.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention not office Being limited to this, any those familiar with the art is in the technical scope that the invention discloses, according to this The technical scheme of invention and inventive concept thereof in addition equivalent or change, all should contain the protection in the present invention Within the scope of.

Claims (7)

1. a high-accuracy high-efficiency rate gear machining apparatus, it is characterised in that including: base (1), rotation Seat (2), two fixed mechanisms and cutting mechanism;
Rotation seat (2) may be rotatably mounted on base (1);
Two fixed mechanisms are arranged on the upper relative both sides of rotation seat (2), and fixed mechanism includes two mounting rods (31), the first driving means (32) and two hold down gags;Two mounting rods (31) are installed in rotation Seat (2) is upper and is parallel to each other, and two hold down gags are separately mounted on two mounting rods (31);
Hold down gag includes rotary shaft (331), compact heap (332) and locating shaft (333), rotary shaft (331) May be rotatably mounted on the mounting rod (31) of correspondence, the first driving means (32) drive connection rotary shaft (331), First driving means (32) drive rotary shaft (331) to another mounting rod (31) near and away from, pressure Tight block (332) is arranged on close another mounting rod (31) side of rotary shaft (331), locating shaft (333) It is arranged on compact heap (332) away from rotary shaft (331) side, locating shaft (333) and rotary shaft (331) It is coaxially disposed;
Cutting mechanism include cabinet (41), install axle (42), drive gear (43), the second driving means (44), Expansion link (45), polishing part (46) and the 3rd driving means (47), cabinet (41) is arranged on base (1) On, axle (42) is installed and may be rotatably mounted on cabinet (41), drive gear (43) to be arranged on installation axle (42) driving gear (43) shape to engage with rotary shaft (331) shape on, installing axle (42) rotation can Driving gear (43) is made to be positioned at the location status engaged with rotary shaft (331), the second driving means (44) Drive connection drives gear (43), and the second driving means (44) drives gear (43) to rotate;Expansion link (45) Telescopic direction is for lean on into the direction with remotely located axle (333), and polishing part (46) is arranged on expansion link (45) Near locating shaft (333) side, the 3rd driving means (47) drive connection polishing part (46).
High-accuracy high-efficiency rate gear machining apparatus the most according to claim 1, it is characterised in that polishing Part (46) is emery wheel, and the 3rd driving means (47) drives emery wheel to rotate.
High-accuracy high-efficiency rate gear machining apparatus the most according to claim 1, it is characterised in that cabinet (41) being provided with sparge pipe (411) on, the mouth of pipe of sparge pipe (411) is towards locating shaft (333).
High-accuracy high-efficiency rate gear machining apparatus the most according to claim 3, it is characterised in that described High-accuracy high-efficiency rate gear machining apparatus also includes that liquids recovery mechanism, liquids recovery mechanism include the first impurity Recycling box (51), the first impurity recycling box (51) is arranged on mounting rod (31) and above and is positioned under hold down gag End.
High-accuracy high-efficiency rate gear machining apparatus the most according to claim 4, it is characterised in that first Impurity recycling box (51) lower end is provided with liquid outlet.
High-accuracy high-efficiency rate gear machining apparatus the most according to claim 5, it is characterised in that liquid Recovering mechanism also includes the second impurity recycling box (52) and liquid recovery tank (53);Second impurity recycling box (52) It is arranged on base (1) upper and corresponding with liquid outlet position, the second impurity recycling box (52) pipeline connection liquid Collection box (53).
High-accuracy high-efficiency rate gear machining apparatus the most according to claim 6, it is characterised in that second Impurity recycling box is provided with drainage screen in (52).
CN201610457817.0A 2016-06-22 2016-06-22 A kind of high-accuracy high-efficiency rate gear machining apparatus Active CN105965104B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610457817.0A CN105965104B (en) 2016-06-22 2016-06-22 A kind of high-accuracy high-efficiency rate gear machining apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610457817.0A CN105965104B (en) 2016-06-22 2016-06-22 A kind of high-accuracy high-efficiency rate gear machining apparatus

Publications (2)

Publication Number Publication Date
CN105965104A true CN105965104A (en) 2016-09-28
CN105965104B CN105965104B (en) 2018-03-13

Family

ID=57021733

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610457817.0A Active CN105965104B (en) 2016-06-22 2016-06-22 A kind of high-accuracy high-efficiency rate gear machining apparatus

Country Status (1)

Country Link
CN (1) CN105965104B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018072221A1 (en) * 2016-10-19 2018-04-26 陈明 Gear grinding machine capable of controlling sizes of ground teeth of processed gears
CN108161137A (en) * 2018-01-08 2018-06-15 盐城宝鼎电动工具有限公司 For processing the milling drum with spline-simulating periphery workpiece
CN108838469A (en) * 2018-07-04 2018-11-20 芜湖市新海域智能科技有限公司 A kind of gear machining apparatus
CN112536486A (en) * 2020-11-27 2021-03-23 安徽三山机械制造有限公司 High-precision high-efficiency gear machining equipment

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1030541A (en) * 1987-03-15 1989-01-25 吉林工业大学 Generating apparatus of drum gear
JPH09150356A (en) * 1995-11-28 1997-06-10 Nisshin Kogyo Kk Grinding wheel head for double head plane grinding machine
US20030155171A1 (en) * 2002-02-15 2003-08-21 Norman Szalony Shaft to transfer torque in a vehicle
CN2602861Y (en) * 2003-02-28 2004-02-11 马加樵 Automatic sharpening machine for front and rear angle of carbide circular saw blade
DE202007002379U1 (en) * 2007-02-14 2007-05-24 Leistritz Ag Milling device used in the production of worm wheels, toothed arrangements and splined shafts comprises a spindle which rotates with one end coupled with a drive motor in a fixed bearing and with the other end in a bearing plate
CN102784972A (en) * 2012-08-15 2012-11-21 江苏沙龙机电科技有限公司 High-precision mini-type four-shaft linkage numerical control gear-hobbing machine
CN205684846U (en) * 2016-06-22 2016-11-16 安徽三山机械制造有限公司 A kind of high-accuracy high-efficiency rate gear machining apparatus

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1030541A (en) * 1987-03-15 1989-01-25 吉林工业大学 Generating apparatus of drum gear
JPH09150356A (en) * 1995-11-28 1997-06-10 Nisshin Kogyo Kk Grinding wheel head for double head plane grinding machine
US20030155171A1 (en) * 2002-02-15 2003-08-21 Norman Szalony Shaft to transfer torque in a vehicle
CN2602861Y (en) * 2003-02-28 2004-02-11 马加樵 Automatic sharpening machine for front and rear angle of carbide circular saw blade
DE202007002379U1 (en) * 2007-02-14 2007-05-24 Leistritz Ag Milling device used in the production of worm wheels, toothed arrangements and splined shafts comprises a spindle which rotates with one end coupled with a drive motor in a fixed bearing and with the other end in a bearing plate
CN102784972A (en) * 2012-08-15 2012-11-21 江苏沙龙机电科技有限公司 High-precision mini-type four-shaft linkage numerical control gear-hobbing machine
CN205684846U (en) * 2016-06-22 2016-11-16 安徽三山机械制造有限公司 A kind of high-accuracy high-efficiency rate gear machining apparatus

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018072221A1 (en) * 2016-10-19 2018-04-26 陈明 Gear grinding machine capable of controlling sizes of ground teeth of processed gears
CN108161137A (en) * 2018-01-08 2018-06-15 盐城宝鼎电动工具有限公司 For processing the milling drum with spline-simulating periphery workpiece
CN108161137B (en) * 2018-01-08 2024-06-07 盐城宝鼎电动工具有限公司 Grinding machine for machining workpieces having a rack-like peripheral edge
CN108838469A (en) * 2018-07-04 2018-11-20 芜湖市新海域智能科技有限公司 A kind of gear machining apparatus
CN108838469B (en) * 2018-07-04 2020-04-07 浙江大发齿轮有限公司 Gear machining equipment
CN112536486A (en) * 2020-11-27 2021-03-23 安徽三山机械制造有限公司 High-precision high-efficiency gear machining equipment

Also Published As

Publication number Publication date
CN105965104B (en) 2018-03-13

Similar Documents

Publication Publication Date Title
CN105965104A (en) High-precision high-efficiency gear machining equipment
CN104816221B (en) Belt sander
CN102528171A (en) Numerical-control efficient cycloid tooth-shaped grinding machine
CN109926726A (en) A kind of laser marking device high with the practicability for reinforcing function
CN108355914A (en) A kind of handset touch panel face-piece point glue equipment
CN202079598U (en) Small-sized mechanical arm structure
CN112878920B (en) Drilling equipment for coal mine tunneling operation
CN205684846U (en) A kind of high-accuracy high-efficiency rate gear machining apparatus
CN212470779U (en) Precision instrument shell is polished and is leveled device
CN202952145U (en) Telescopic bracket
CN108581358A (en) A kind of petroleum pipeline installation supporting rack convenient for adjusting
CN205129530U (en) Waste intraductal surface grinding machine
CN213544009U (en) Supplementary rotatory flexibility detection device of gyro wheel bearing
CN205684845U (en) A kind of hi-Fix Stability Analysis of Structures type gear machining equipment
CN105415119A (en) Spring end surface grinding device facilitating precision machining
CN102233528A (en) Automatic sharpening device for spreading machine
CN209632955U (en) A kind of X/Y plane displacement platform of superhigh precision
CN109352368A (en) Regulating device is used in a kind of cutting of bearing race raw material
CN105965103B (en) A kind of high accuracy positioning Stability Analysis of Structures type gear machining equipment
CN2652620Y (en) Digital control flat plate type drawing cutter
CN106141768A (en) One can realize multi-functional drilling and milling machine
CN205817532U (en) A kind of improved grinding machine
CN210389372U (en) Processing device for mobile phone key guide groove
CN105619091A (en) Improved rotating workbench
CN205438182U (en) Multi freedom polishing working table boards

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant