CN103029027B - Super-finishing machine for spherical bearing roller - Google Patents
Super-finishing machine for spherical bearing roller Download PDFInfo
- Publication number
- CN103029027B CN103029027B CN201210349265.3A CN201210349265A CN103029027B CN 103029027 B CN103029027 B CN 103029027B CN 201210349265 A CN201210349265 A CN 201210349265A CN 103029027 B CN103029027 B CN 103029027B
- Authority
- CN
- China
- Prior art keywords
- workpiece
- rotating shaft
- slide block
- spherical bearing
- bearing roller
- 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.)
- Active
Links
Landscapes
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a super-finishing machine for a spherical bearing roller, belonging to the field of super-finishing of a bearing part. The conventional super-finishing machine for the spherical roller is low in machining accuracy; a workpiece driving device, a tool driving device, a workpiece supporting mechanism and an electrical control system are arranged on a working table of a body of a machine tool; the workpiece driving device comprises a motor and a clamping mechanism; the clamping mechanism comprises a workpiece backup plate and a pressing mechanism; the workpiece backup plate is driven to rotate by the motor; the pressing mechanism comprises a pressing wheel and a pressing wheel driving mechanism; a workpiece clamping region is formed between the pressing wheel and the workpiece backup plate; the workpiece supporting mechanism is positioned below the workpiece clamping region; the tool driving device comprises a sliding mechanism and a swinging mechanism; the swinging mechanism comprises a swinging motor, a tool chuck, a chuck seat and a swinging rotating shaft; the tool chuck is arranged on the swinging rotating shaft and is positioned above the workpiece clamping region; a rotating shaft of the swinging motor is connected with the swinging rotating shaft through a crank-rocker mechanism; and the left-right position, the front-back position and the up-down position of the tool chuck are adjusted through the sliding mechanism. The machining accuracy is improved.
Description
Technical field
The invention belongs to bearing parts Ultraprecision Machining Technology field, especially relevant with spherical bearing roller Superfinishing machine.
Background technology
The roller that spherical roller is outline line is circle, bus is evagination camber line, the center-of-curvature line composition center of curvature face of all buses.Roller precision is the key factor affecting roller bearing quality, and the main precision index of roller is the roughness and curvature shape of roller.Prior art ensures the roughness and curvature shape need of spherical roller, logarithmic curve roller and bearing with spherical outside surface lasso mainly through two kinds of approach, and one is decorated processing, and two is superfinishings.Current Superfinishing machine generally comprises vibrating mechanism and hyperbolic roller mechanism, vibrating mechanism drives oilstone to swing, two deflector roll or two idler wheel mechanism drive workpiece to rotate, on workpiece, attrition process is carried out along bus contact swing by oilstone, but this Superfinishing machine, after processing a period of time, only has tangent tangent point contact between oilstone and roller surface, thus produce uneven cutting force destruction part curvature shape, have impact on superfinishing precision, do not reach high-precision requirement.
Summary of the invention
Object of the present invention is intended to overcome the not high defect of existing sphere roller superfine machine machining accuracy, provides a kind of high accuracy sphere roller superfine machine.
For this reason, the present invention is by the following technical solutions: spherical bearing roller Superfinishing machine, comprise lathe bed, lathe bed end face is set to workbench, it is characterized in that: described spherical bearing roller Superfinishing machine also comprises the work piece actuating device be installed on workbench, cutter driving device, workpiece support mechanism and electric-control system, work piece actuating device comprises motor and clamping mechanism, clamping mechanism comprises workpiece backup plate and is pressed against mechanism, workpiece backup plate is driven by motor and rotates, be pressed against mechanism to comprise pinch roller and drive pinch roller relative to the pinch roller driving mechanism of described workpiece backup plate forward-reverse, Workpiece clamping district is formed between pinch roller and workpiece backup plate, described workpiece support mechanism is installed on below Workpiece clamping district, described cutter driving device comprises slipping mechanism and swing mechanism, slipping mechanism comprises the first slide block and the second slide block, first slide block and workbench, all connected by sliding guide mechanism pairing between first slide block and the second slide block, first slide block moving direction and the second slide block moving direction are all laterally and mutually vertical, swing mechanism comprises oscillating motor, cutter chuck, base of the carrier head and swing rotating shaft, swing rotating shaft to be vertically arranged in the axis hole of base of the carrier head by bearings, cutter chuck is installed on and swings rotating shaft and be positioned at above described Workpiece clamping district, oscillating motor is arranged on base of the carrier head, oscillating motor rotating shaft is connected with swing rotating shaft by crank and rocker mechanism, it is the rotation swinging rotating shaft by the translating rotation of oscillating motor, the angle that rotates and reverse swinging rotating shaft rotation is all less than 360 degree, connected by sliding guide mechanism pairing between base of the carrier head and the second described slide block, base of the carrier head glide direction is vertical, same cutter chuck lifting carriage can be with, by the first slide block of slipping mechanism, second slide block slippage, about can cutter chuck being regulated, front and back and upper-lower position, the motor of described work piece actuating device, the oscillating motor of cutter driving device are by described electric control system controls.
As to technique scheme supplement and perfect, the present invention also comprises following technical scheme.
Described cutter chuck is provided with tool mounting portion, the oilstone cutter being installed on this tool mounting portion can only do the motion of cut workpiece bus adding man-hour, guarantee the working face of oilstone self-assembling formation is fitted completely in any position and spherical roller superfinishing face, improve superfinishing precision.
Described slipping mechanism also comprises the slippage driving mechanism of driving first slide block and the second slide block slippage.
Described crank and rocker mechanism comprises eccentric wheel, connecting rod and rocking bar, and eccentric wheel is installed on oscillating motor rotating shaft, and rocking bar is installed on swing rotating shaft, connecting rod connecting eccentric wheel and rocking bar.
Described pinch roller driving mechanism comprises support, pivot lever and cylinder, supported by bearing pin in the middle part of pivot lever and be installed on support, described pinch roller is supported by axle and installs pivot lever one end, the pivot lever other end is flexibly connected with cylinder piston rod, cylinder block position is fixed, rotated around bearing pin by air cylinder driven pivot lever, drive pinch roller to put a segment distance with pivot lever end and be pressed against on workpiece end face, workpiece spindle is against workpiece backup plate to pressing.
Described pivot lever quantity is two covers, be divided into described support both sides, corresponding described pinch roller quantity also has two, often overlap the corresponding pinch roller of pivot lever, two pinch rollers being pressed against on workpiece end face a little lays respectively at the round heart both sides of end face and symmetry, can compare balance to the throw-on pressure of workpiece, when workpiece rotates, pinch roller also rotates thereupon, and workpiece is rotated steadily, and rotational resistance is little.
Described workpiece support mechanism comprises a gripper shoe, and gripper shoe top arranges V-arrangement opening.
Described workpiece support mechanism also comprises base plate, it is vertical mounting hole that the part that base plate contacts with workbench is provided with center line, base plate is fixedly mounted on described workbench by the screw being threaded onto mounting hole, gripper shoe is installed on base plate, the installation site of base plate can be adjusted according to the length of workpiece, gripper shoe can be supported in the middle part of workpiece.
Described sphere roller superfine machine is provided with automatic loading and unloading mechanism, realizes the automatic loading and unloading of workpiece.
Described work piece actuating device, cutter driving device, workpiece support mechanism quantity are all two covers, and same workbench is arranged symmetrically with, and by same electric control system controls, improve mechanism's utilization rate, reduce cost.
When the present invention uses, workpiece one end is resisted against workpiece backup plate, the other end is pressed against by pinch roller, and middle part, by gripper shoe V-arrangement opening supports, realizes Workpiece clamping, starter motor, workpiece rotates with motor, adjusts to above workpiece by slipping mechanism by the cutter chuck being provided with oilstone, is driven swing axis of rotation by oscillating motor, be with and swing with cutter chuck, make the surface of the work reciprocally swinging grinding that oilstone is rotating; After processing to be done, pinch roller leaves workpiece end face, takes off workpiece, again inserts unprocessed workpiece, carries out the processing of a new round.
Use the present invention can reach following beneficial effect: the present invention adopts pinch roller to be pressed against the Workpiece clamping mode of workpiece end face, clamping workpiece is convenient; Adopt position can slippage adjustment cutter driving device, the swing rotating shaft of cutter driving device realizes oilstone oscillating spindle axis and work spindle axial location spacing is adjustable, can ensure the working face of oilstone self-assembling formation is fitted completely in any position and spherical roller superfinishing face, improve superfinishing precision, and the center of curvature face not irregular spherical roller of separated time in roller axis can be processed.
Accompanying drawing explanation
Fig. 1 is perspective view of the present invention.
Fig. 2 is front view of the present invention.
Fig. 3 is right view of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the inventive method is described in detail.
As shown in FIG. 1 to 3, the present invention includes lathe bed 1, work piece actuating device, cutter driving device, workpiece support mechanism, automatic loading and unloading mechanism and electric-control system, lathe bed 1 end face is set to workbench 3, work piece actuating device comprises motor 4 and clamping mechanism, clamping mechanism comprises workpiece backup plate 2 and is pressed against mechanism, workpiece backup plate 2 drives rotation by motor 4, motor 4 is supported by motor support base and is installed on workbench, be pressed against mechanism and comprise pinch roller 14 and pinch roller driving mechanism, pinch roller driving mechanism drives pinch roller 14 relative to workpiece backup plate 2 forward-reverse, make to form Workpiece clamping district between pinch roller 14 and workpiece backup plate 2, pinch roller driving mechanism comprises support 18, pivot lever 15 and cylinder 17, pivot lever 15 quantity is two covers, supported by bearing pin 19 in the middle part of pivot lever 15 and be installed on support both sides, each pivot lever 15 one end is supported by axle and is provided with a pinch roller 14, pivot lever 15 other end is flexibly connected with cylinder piston rod, the cylinder body of cylinder 17 is installed on the table, rotated around bearing pin 19 by cylinder 17 drive rocker part 15, driving pinch roller 14 to put a segment distance with pivot lever 15 end is pressed against on workpiece end face, workpiece spindle is against workpiece backup plate 2 to pressing, two pinch rollers 14 being pressed against on workpiece end face a little lays respectively at the round heart both sides of end face and symmetry, balance can be compared to the throw-on pressure of workpiece, when workpiece rotates, pinch roller 14 also rotates thereupon, workpiece is made to rotate steadily, rotational resistance is little, workpiece support mechanism is installed on below Workpiece clamping district, comprise gripper shoe 20 and base plate 21, gripper shoe 20 top arranges V-arrangement opening, it is vertical mounting hole that the part that base plate contacts with workbench is provided with center line, base plate 21 is by being threaded onto the screw fixed installation of mounting hole on the table, gripper shoe 20 is arranged on base plate 21 by sliding guide mechanism, and gripper shoe 20 can adjust relative to the left and right of workpiece backup plate 2, front and back, upper-lower position, ensures to be supported in the middle part of workpiece, cutter driving device comprises slipping mechanism and swing mechanism, slipping mechanism comprises the first slide block 16, second slide block 11 and slippage driving mechanism, first slide block 16 and workbench 3, all connected by sliding guide mechanism pairing between first slide block 16 and the second slide block 11, first slide block 16 moving direction and the second slide block 11 moving direction are all laterally and mutually vertical, slippage driving mechanism drives the first slide block 16 and the second slide block 11 to carry out slippage, swing mechanism comprises oscillating motor 6, cutter chuck 13, base of the carrier head 5, swing rotating shaft 10 and crank and rocker mechanism, swing rotating shaft 10 to be vertically arranged on by bearings in the axis hole of base of the carrier head 5, cutter chuck 13 is installed on and swings rotating shaft 10 and be positioned at above Workpiece clamping district, cutter chuck 13 is provided with tool mounting portion, the oilstone cutter 12 being installed on this tool mounting portion can only do the motion of cut workpiece bus adding man-hour, oscillating motor 6 is arranged on base of the carrier head 5, crank and rocker mechanism comprises eccentric wheel 7, connecting rod 8 and rocking bar 9, eccentric wheel 7 is installed on oscillating motor rotating shaft, rocking bar 9 is installed on and swings rotating shaft 10, connecting rod 8 connecting eccentric wheel 7 and rocking bar 9, it is the rotation swinging rotating shaft 10 by the translating rotation of oscillating motor 6, the angle that rotates and reverse swinging rotating shaft 10 rotation is all less than 360 degree, connected by sliding guide mechanism pairing between base of the carrier head 5 and the second slide block 11, base of the carrier head 5 glide direction is vertical, same cutter chuck 13 lifting carriage can be with, by the first slide block 16 of slipping mechanism, second slide block slippage 11, cutter chuck about 13 can be regulated, front and back and upper-lower position, work piece actuating device, cutter driving device, workpiece support mechanism quantity are all two covers, same workbench is arranged symmetrically with, is connected and is controlled by it with same electric-control system, improve mechanism's utilization rate, reduce cost.
When the present invention uses, workpiece one end is resisted against workpiece backup plate 2, the other end is pressed against by pinch roller 14, and middle part, by the V-arrangement opening supports of gripper shoe 20, realizes Workpiece clamping, starter motor 4, workpiece rotates with motor 4, adjusts to above workpiece, drive swing axis of rotation by oscillating motor 6 by slipping mechanism by the cutter chuck 13 being provided with oilstone, band swings with cutter chuck 13, makes the surface of the work reciprocally swinging grinding that oilstone is rotating; After processing to be done, pinch roller 14 leaves workpiece end face, takes off workpiece, again inserts unprocessed workpiece, carries out the processing of a new round.
Claims (9)
1. spherical bearing roller Superfinishing machine, comprise lathe bed (1), lathe bed (1) end face is set to workbench (3), it is characterized in that: described spherical bearing roller Superfinishing machine also comprises the work piece actuating device be installed on workbench (3), cutter driving device, workpiece support mechanism and electric-control system, work piece actuating device comprises motor (4) and clamping mechanism, clamping mechanism comprises workpiece backup plate (2) and is pressed against mechanism, be pressed against mechanism to comprise pinch roller (14) and drive pinch roller (14) relative to the pinch roller driving mechanism of workpiece backup plate (2) forward-reverse, Workpiece clamping district is formed between pinch roller (14) and workpiece backup plate (2), described workpiece support mechanism is installed on below Workpiece clamping district, described cutter driving device comprises slipping mechanism and swing mechanism, slipping mechanism comprises the first slide block (16) and the second slide block (11), first slide block (16) and workbench (3), all connected by sliding guide mechanism pairing between first slide block (16) and the second slide block (11), first slide block (16) moving direction and the second slide block (11) moving direction are all laterally and mutually vertical, swing mechanism comprises oscillating motor (6), cutter chuck (13), base of the carrier head (5) and swing rotating shaft (10), swing rotating shaft (10) to be vertically arranged on by bearings in the axis hole of base of the carrier head (5), cutter chuck (13) is installed on and swings rotating shaft (10) and be positioned at above Workpiece clamping district, oscillating motor (6) is arranged on base of the carrier head (5), oscillating motor rotating shaft is connected with swing rotating shaft (10) by crank and rocker mechanism, the angle that rotates and reverse swinging rotating shaft (10) rotation is all less than 360 degree, connected by sliding guide mechanism pairing between base of the carrier head (5) and the second slide block (11), base of the carrier head (5) glide direction is vertical, cutter chuck (13) is provided with tool mounting portion, the oilstone cutter being installed on this tool mounting portion can only do the motion of cut workpiece bus adding man-hour, the motor (4) of described work piece actuating device, the oscillating motor (6) of cutter driving device is by electric control system controls.
2. spherical bearing roller Superfinishing machine according to claim 1, is characterized in that: described slipping mechanism also comprises the slippage driving mechanism of driving first slide block (16) and the second slide block (11) slippage.
3. spherical bearing roller Superfinishing machine according to claim 2, it is characterized in that: described crank and rocker mechanism comprises eccentric wheel (7), connecting rod (8) and rocking bar (9), eccentric wheel (7) is installed on oscillating motor rotating shaft, rocking bar (9) is installed on and swings rotating shaft (10), connecting rod (8) connecting eccentric wheel (7) and rocking bar (9).
4. the spherical bearing roller Superfinishing machine according to claim 1 or 3, it is characterized in that: described pinch roller driving mechanism comprises support (18), pivot lever (15) and cylinder, pivot lever (15) middle part is supported by bearing pin (19) and is installed on support (18), pinch roller (14) is supported by axle and is installed on pivot lever (15) one end, pivot lever (15) other end is flexibly connected with the piston rod of cylinder (17), and cylinder (17) cylinder body position is fixed.
5. spherical bearing roller Superfinishing machine according to claim 4, is characterized in that: described pivot lever (15) quantity is two covers, is divided into support (18) both sides, accordingly, often overlaps the corresponding pinch roller (14) of pivot lever (15); Two pinch rollers (14) being pressed against on workpiece end face a little lays respectively at the round heart both sides of end face and symmetry.
6. spherical bearing roller Superfinishing machine according to claim 1 or 5, it is characterized in that: described workpiece support mechanism comprises a gripper shoe (20), gripper shoe (20) top arranges V-arrangement opening.
7. spherical bearing roller Superfinishing machine according to claim 6, it is characterized in that: described workpiece support mechanism also comprises base plate (21), it is vertical mounting hole that the part that base plate (21) contacts with workbench is provided with center line, base plate (21) is fixedly mounted on workbench (3) by the screw being threaded onto mounting hole, and gripper shoe (20) is installed on base plate (21).
8. spherical bearing roller Superfinishing machine according to claim 7, is characterized in that: described sphere roller superfine machine is provided with automatic loading and unloading mechanism.
9. spherical bearing roller Superfinishing machine according to claim 8, is characterized in that: described work piece actuating device, cutter driving device, workpiece support mechanism quantity are all two covers, same workbench (3) are arranged symmetrically with, by same electric control system controls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210349265.3A CN103029027B (en) | 2012-09-19 | 2012-09-19 | Super-finishing machine for spherical bearing roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210349265.3A CN103029027B (en) | 2012-09-19 | 2012-09-19 | Super-finishing machine for spherical bearing roller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103029027A CN103029027A (en) | 2013-04-10 |
| CN103029027B true CN103029027B (en) | 2015-07-08 |
Family
ID=48016694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210349265.3A Active CN103029027B (en) | 2012-09-19 | 2012-09-19 | Super-finishing machine for spherical bearing roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103029027B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105522472B (en) * | 2016-01-17 | 2017-12-01 | 浙江陀曼智造科技有限公司 | A kind of Superfinishing machine |
| CN107378742A (en) * | 2017-08-03 | 2017-11-24 | 上海晟禧精密机械设备有限公司 | Roller superfinishing machine |
| CN108340274A (en) * | 2017-12-28 | 2018-07-31 | 广州群创数控机床有限公司 | A kind of compound grinding machine for grinding motor base |
| CN108284378B (en) * | 2018-02-13 | 2024-04-12 | 河南摩西机械制造有限公司 | Surface treatment enhancing device for outer convex surface of iron pan |
| CN109916778A (en) * | 2019-03-04 | 2019-06-21 | 哈尔滨理工大学 | A kind of constant temperature and pressure diffusion experiment device |
| CN112296866A (en) * | 2019-08-02 | 2021-02-02 | 青岛泰德汽车轴承股份有限公司 | Main shaft channel grinding device in shaft-connected bearing |
| CN112959185A (en) * | 2020-12-31 | 2021-06-15 | 新昌浙江工业大学科学技术研究院 | Special abrasive belt polishing equipment for spherical part with through hole |
| CN112706007B (en) * | 2021-01-06 | 2022-07-01 | 广州敏实汽车零部件有限公司 | Polishing equipment and polishing method applying same |
| CN114289794A (en) * | 2021-11-19 | 2022-04-08 | 重庆登鸿机电有限公司 | Rotor deburring device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU607713A1 (en) * | 1976-04-08 | 1978-05-25 | Предприятие П/Я М-5211 | Machine for super-finishing the roller tracks of bearing races |
| CN1142425A (en) * | 1996-04-01 | 1997-02-12 | 机械工业部第十设计研究院 | Process and machines for superfine machining convex bus by cutting into-through two step process |
| JP2002086341A (en) * | 2000-09-08 | 2002-03-26 | Nsk Ltd | Super-finishing method for roller |
| CN2734401Y (en) * | 2004-09-30 | 2005-10-19 | 洛阳轴承集团有限公司 | Spatial swing links mechanism of full-automatic spherical surface roller super precise machine |
| CN1754648A (en) * | 2004-09-30 | 2006-04-05 | 洛阳轴承集团有限公司 | Full-automatic sphere roller superfine machine |
| CN201249392Y (en) * | 2008-01-28 | 2009-06-03 | 徐秉绶 | Plunge type ball bearing groove super-finishing machine |
| CN202752972U (en) * | 2012-09-19 | 2013-02-27 | 新昌县诚本轴承滚子有限公司 | Spherical roller super-precise machine |
-
2012
- 2012-09-19 CN CN201210349265.3A patent/CN103029027B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU607713A1 (en) * | 1976-04-08 | 1978-05-25 | Предприятие П/Я М-5211 | Machine for super-finishing the roller tracks of bearing races |
| CN1142425A (en) * | 1996-04-01 | 1997-02-12 | 机械工业部第十设计研究院 | Process and machines for superfine machining convex bus by cutting into-through two step process |
| JP2002086341A (en) * | 2000-09-08 | 2002-03-26 | Nsk Ltd | Super-finishing method for roller |
| CN2734401Y (en) * | 2004-09-30 | 2005-10-19 | 洛阳轴承集团有限公司 | Spatial swing links mechanism of full-automatic spherical surface roller super precise machine |
| CN1754648A (en) * | 2004-09-30 | 2006-04-05 | 洛阳轴承集团有限公司 | Full-automatic sphere roller superfine machine |
| CN201249392Y (en) * | 2008-01-28 | 2009-06-03 | 徐秉绶 | Plunge type ball bearing groove super-finishing machine |
| CN202752972U (en) * | 2012-09-19 | 2013-02-27 | 新昌县诚本轴承滚子有限公司 | Spherical roller super-precise machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103029027A (en) | 2013-04-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103029027B (en) | Super-finishing machine for spherical bearing roller | |
| CN210173144U (en) | Slender rod cylindrical grinding machine | |
| CN102729107B (en) | Double-station high-precision rubber covered roller grinding machine | |
| CN110385628A (en) | Bearing roller grinding attachment | |
| CN202752972U (en) | Spherical roller super-precise machine | |
| CN202804856U (en) | Spherical roller end face supergrinding device | |
| CN102896567B (en) | Grinding and super finish mechanism for roller end face | |
| CN102581711B (en) | Automatic edging machine | |
| CN212495832U (en) | Three-dimensional shape-modifying device for copper pole logarithmic curve | |
| CN202162673U (en) | Polishing grinding, and reshaping equipment for abrasive belt | |
| CN205438041U (en) | Top mechanism is used to grinding machine | |
| CN209774289U (en) | Novel polishing and grinding machine tool | |
| CN210678067U (en) | Whole grinding device of polyurethane conveying roller | |
| CN209812054U (en) | Tangent interpolation of two circles is repaiied mechanism and emery wheel trimming device | |
| CN114310649A (en) | Super smart machine of grinding | |
| CN109940514B (en) | Trimming method of double-circle tangent interpolation trimming device | |
| CN209680829U (en) | A kind of saw blade does waist equipment | |
| CN202479930U (en) | Belt sander with adjustable plane inclination | |
| CN211867394U (en) | Linkage grinding head | |
| CN112296866A (en) | Main shaft channel grinding device in shaft-connected bearing | |
| CN217702838U (en) | Super all-in-one of human joint ball-milling | |
| CN204748228U (en) | A throw ring grain machine for throwing rounding post work piece terminal surface | |
| CN114434226B (en) | Cylindrical grinding machine | |
| CN212683129U (en) | Special-shaped part multi-station machining tool with clamp structure | |
| CN216707107U (en) | Grinding superfinishing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 312500 No. 5 Youshi Road, Meizhu Town, Xinchang County, Zhejiang Province Patentee after: Zhejiang Chengben Bearing Roller Co., Ltd. Address before: 312500 Yulin Road, Yulin Street, Xinchang County, Shaoxing City, Zhejiang Province Patentee before: Xinchang County Chengben Roller Bearing Co., Ltd. |
|
| CP03 | Change of name, title or address |