CN202137669U - High-speed polishing machine special for screws - Google Patents
High-speed polishing machine special for screws Download PDFInfo
- Publication number
- CN202137669U CN202137669U CN201120171989U CN201120171989U CN202137669U CN 202137669 U CN202137669 U CN 202137669U CN 201120171989 U CN201120171989 U CN 201120171989U CN 201120171989 U CN201120171989 U CN 201120171989U CN 202137669 U CN202137669 U CN 202137669U
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- screw rod
- guide
- mounting bracket
- driven pulley
- thimble
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- Expired - Fee Related
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Abstract
The utility model discloses a high-speed polishing machine special for screws, which comprises a machine tool body, a driving mechanism, a clamping device, a polishing device and a control system. The clamping device comprises a chuck and an ejector pin, the chuck and the ejector pin are used for clamping a screw, and an output end of the driving mechanism is connected with the chuck. The polishing device comprises a mounting support, a motor, a driving wheel, a driven wheel, a guide wheel, an abrasive belt and a horizontal moving mechanism. The horizontal moving mechanism can be horizontally and movably connected to the machine tool body, the mounting support is pivoted to the horizontal moving mechanism, and an output end of the motor is connected with the driving wheel. The driving wheel, the driven wheel and the guide wheel are respectively pivoted to the mounting support, the abrasive belt is wound onto the driving wheel, the driven wheel and the guide wheel, and the control system is electrically connected with the driving mechanism and the clamping device. The high-speed polishing machine special for screws is convenient in operation, environment-friendly, cost-saving and high in operation efficiency.
Description
Technical field
The utility model relates to a kind of polishing machine, relates in particular to a kind of easy to operate, environmental protection, saving cost, the screw rod specialized high-speed polishing machine of high efficiency.
Background technology
The screw rod of plastic extruder is the core component of extruder, the flowing velocity of its any surface finish degree direct influence material, so any one of screw rod all need reach the surface roughness requirement.If its surface roughness does not reach requirement, then cause material to stick in its surface easily, the at high temperature very fast burnt blackening of sticking with paste, the extrusion profile surface just can form the black texture, and this directly influences the quality of plastic products, even can produce waste product.Therefore, the polishing process of screw surface and safeguard measure thereof are particularly important.
Existing screw rod polishing machine is to adopt fixed rotating speed to send main shaft to, and then drives the screw rod rotation, polishes with portable polishing machine again.Because what polishing machine used is thousand pages of wheels and sponge wheel, therefore, can produce a large amount of dusts during polishing; Have a strong impact on production environment, in addition, thousand pages of wheels and sponge wheel all are round; So product bottom, polishing back can be level and smooth inadequately, the requirement that does not reach surface roughness, and the pitch of some screw rod constantly changes, the spiral shell rib degree of depth also changes with screw diameter; Different its spiral shell rib head numbers of extruded segment of screw rod are also different, and its tooth form angle of each spiral shell rib is also different, therefore; These labyrinths that screw rod exists and adopt and add trade union manually and cause production efficiency very low, and then improved production cost.To sum up, existing screw rod polishing machine is difficult to satisfy the polishing demand.
The utility model content
The purpose of the utility model is to provide a kind of easy to operate, environmental protection, saving cost, the screw rod specialized high-speed polishing machine of high efficiency.
To achieve these goals; The utility model provides a kind of screw rod specialized high-speed polishing machine; Comprise machine tool main body, driving mechanism, clamping device, burnishing device and control system, said screw rod horizontal positioned, said clamping device comprises chuck and thimble; One end of the said screw rod of said chuck clamping; Said thimble contacts at the other end of said screw rod, and said driving mechanism is installed on the said machine tool main body and output is connected with said chuck, and said burnishing device comprises mounting bracket, motor, driving wheel, driven pulley, guide wheel, abrasive band and horizontal mobile mechanism; Said horizontal mobile mechanism can be connected on the said machine tool main body with moving horizontally; Said mounting bracket is articulated on the said horizontal mobile mechanism, and said motor is installed on the said mounting bracket and output is connected with said driving wheel, and said driving wheel, driven pulley and guide wheel are articulated in respectively on the said mounting bracket; Said abrasive band is wound on said driving wheel, driven pulley and the guide wheel, and said control system is electrically connected with said driving mechanism and clamping device.
Preferably; Said driving mechanism comprises variable-frequency motor, drive pulley, driven pulley, belt and main shaft; Said variable-frequency motor is installed on the said machine tool main body, and output is connected with said drive pulley, and said main shaft is articulated on the said machine tool main body and an end is connected with said driven pulley; The other end is connected with said chuck, and said belt is wound on said drive pulley and the driven pulley.Drive said drive pulley and driven pulley through said variable-frequency motor, rotate thereby drive said main shaft, and then driving is held on the screw rod on the said chuck; Screw rod is rotated; Utilize said variable-frequency motor to realize infinitely variable speeds, thereby simplify traditional speed-changing gear box, greatly save the space; Simple in structure, Operation and Maintenance is very convenient.
Preferably, said clamping device also comprises the thimble dolly, and said thimble is installed on the said thimble dolly, offers guide rail on the said machine tool main body, and said thimble dolly is installed on the said guide rail movably.Said thimble dolly can move on guide rail, thereby makes said thimble and said chuck realize the clamping to the screw rod of different length.
Preferably, said burnishing device also comprises tensioning apparatus, and said tensioning apparatus is a cylinder, and the cylinder body of said cylinder is fixed on the said mounting bracket, and the piston rod output of said cylinder and said driven pulley articulate.The abrasive band is wound between said driving wheel, driven pulley and the guide wheel, is installing or during demolition, utilizes the Telescopic of the piston rod of said cylinder to make said driven pulley carry out tensioning to the abrasive band or loosens, thereby make things convenient for the abrasive band to install or demolition.
Preferably; Said burnishing device also comprises elastic parts, and said elastic parts comprises guide pillar and compression spring, and said guide pillar is fixed on the said mounting bracket; Said compression spring housing is connected on the said guide pillar and an end and the conflict of said mounting bracket, and the other end and said horizontal mobile mechanism are conflicted.When said burnishing device polishes screw rod; Said burnishing device must rotate and make said abrasive band press close to said screw surface; After polishing is accomplished, need leave said screw surface again, therefore, utilize the elastic-restoring force of said elastic parts; Can make said burnishing device automatically revert to the state before using, the operation utmost point is convenient.
Preferably, said horizontal mobile mechanism comprises the axis of guide and linear bearing, and the said axis of guide flatly is installed on the said mounting bracket, and said linear bearing is socketed on the said axis of guide.Utilize said linear bearing straight line on the said axis of guide to move, said burnishing device is moved around on the length direction of said screw rod, realize whole screw rod polished.
Because the utility model utilizes the end clamping of said chuck with said screw rod, said thimble contacts at the other end of said screw rod, thereby makes said screw rod horizontal positioned; Again the said abrasive band on the said clamping device is contacted on the surface of said screw rod, drive said abrasive band, make the surface finish of said abrasive band at said screw rod through driving wheel and driven pulley; And utilize horizontal mobile mechanism on the length direction of said screw rod, to move around and drive moving around of whole burnishing device; Thereby solve the irremovable problem of general polishing machine fuselage, realize whole screw rod polished, manually polish with traditional thousand pages of wheels of use and compare; The utility model uses the abrasive band can effectively reduce the dust that polishing produces; Effectively improve production environment, and only need manually press down said burnishing device and can realize automatic polishing, operate very simple and convenient; Production efficiency is greatly improved, and has saved a large amount of production costs.
Description of drawings
Fig. 1 is the structural representation of the utility model screw rod specialized high-speed polishing machine.
Fig. 2 is the structural representation of burnishing device in the utility model screw rod specialized high-speed polishing machine.
Fig. 3 is the state diagram of the utility model screw rod specialized high-speed polishing machine when screw rod is polished.
The specific embodiment
As shown in Figure 1; The utility model screw rod specialized high-speed polishing machine 100 comprises machine tool main body 1, driving mechanism 2, clamping device 3, burnishing device 4 and control system (not shown), and said control system is electrically connected with said driving mechanism 2, clamping device 3 and burnishing device 4.Said screw rod 200 horizontal positioned; Said clamping device 3 comprises chuck 31, thimble 32 and thimble dolly 33; One end of the said screw rod 200 of said chuck 31 clampings, said thimble 32 contacts at the other end of said screw rod 200, and said thimble 32 is installed on the said thimble dolly 33; Offer guide rail 11 on the said machine tool main body 1, said thimble dolly 33 is installed on the said guide rail 11 movably.Said thimble dolly 33 can move on guide rail 11, thus the clamping that said thimble 32 and said chuck 31 are realized the screw rod 200 of different length.
Said driving mechanism 2 comprises variable-frequency motor 21, drive pulley 22, driven pulley 23, belt 24 and main shaft 25; Said variable-frequency motor 21 is installed on the said machine tool main body 1; Output is connected with said drive pulley 22; Said main shaft 25 is articulated on the said machine tool main body 1 and an end is connected with said driven pulley 23, and the other end is connected with said chuck 31, and said belt 24 is wound on said drive pulley 22 and the driven pulley 23.Drive said drive pulley 22 and driven pulley 23 through said variable-frequency motor 21, rotate thereby drive said main shaft 25, and then driving is held on the screw rod 200 on the said chuck 31; Screw rod 200 is rotated; Utilize said variable-frequency motor 21 to realize infinitely variable speeds, thereby simplify traditional speed-changing gear box, greatly save the space; Simple in structure, Operation and Maintenance is very convenient.
As shown in Figure 2; Said burnishing device 4 comprises mounting bracket 41, motor 42, driving wheel 43, driven pulley 44, guide wheel 45, abrasive band 46, horizontal mobile mechanism 47, tensioning apparatus 48 and elastic parts 49; Said horizontal mobile mechanism 47 can be connected on the said machine tool main body 1 with moving horizontally; Said mounting bracket 41 is articulated on the said horizontal mobile mechanism 47; Said motor 42 is installed on the said mounting bracket 41 and output is connected with said driving wheel 43, and said driving wheel 43, driven pulley 44 and guide wheel 45 are articulated in respectively on the said mounting bracket 41, and said abrasive band 46 is wound on said driving wheel 43, driven pulley 44 and the guide wheel 45.
Said horizontal mobile mechanism 47 comprises axis of guide 47a and linear bearing 47b, and said axis of guide 47a flatly is installed on the said mounting bracket 41, and said linear bearing 47b is socketed on the said axis of guide 47a.Utilize said linear bearing 47b straight line on said axis of guide 47a to move, said burnishing device 4 is moved around on the length direction of said screw rod 200, realize whole screw rod 200 polished.
Said tensioning apparatus 48 is a cylinder, and the cylinder body of said cylinder is fixed on the said mounting bracket 41, and the piston rod output of said cylinder and said driven pulley 44 articulate.Said abrasive band 46 is wound between said driving wheel 43, driven pulley 44 and the guide wheel 45, is installing or during demolition, utilizes the Telescopic of the piston rod of said cylinder to make 44 pairs of abrasive bands of said driven pulley 46 carry out tensioning or loosen, thereby makes things convenient for the abrasive band to install or demolition.
Said elastic parts 49 comprises guide pillar 49a and compression spring 49b; Said guide pillar 49a is fixed on the said mounting bracket 41; Said compression spring 49b is socketed on said guide pillar 49a last and an end and 41 conflicts of said mounting bracket, and the other end and said horizontal mobile mechanism 47 are conflicted.When 4 pairs of screw rods 200 of said burnishing device polish; Said burnishing device 4 must rotate and make said abrasive band 46 press close to said screw rod 200 surfaces; After polishing is accomplished, need leave said screw rod 200 surfaces again, therefore, utilize the elastic-restoring force of said elastic parts 49; Can make said burnishing device 4 automatically revert to the state before using, the operation utmost point is convenient.
Comprehensive above-mentioned and combine Fig. 3, the operation principle in the face of the utility model screw rod specialized high-speed polishing machine 100 is described in detail down, as follows:
Before the polishing, with said screw rod 200 horizontal positioned, an end of said screw rod 200 is held on the said chuck 31; Promote said thimble dolly 33 again; Said thimble dolly 33 is moved along said guide rail 11, thereby make said thimble 32 contact at the other end of said screw rod 200, said screw rod 200 is in stationary state; Said control system controls said variable-frequency motor 21 and starts; Said variable-frequency motor 21 rotates and drives said drive pulley 22 and driven pulley 23, thereby drives said main shaft 25 and chuck 31, and said screw rod 200 is rotated.Simultaneously, the motor 42 of said burnishing device 4 starts, and drives said driving wheel 43 and rotates; Because said abrasive band 46 is wound between said driving wheel 43, driven pulley 44 and the guide wheel 45, therefore said driving wheel 43 drives said abrasive band 46 and rotates, at this moment; Manually press said burnishing device 4; Said abrasive band 46 is close to said screw rod 200 surfaces, at this moment, the said compression spring 49b of said mounting bracket 41 compressions.At this moment, promptly polish the screw channel surface of said screw rod 200 in said abrasive band 46.In addition; Can promote said burnishing device 4; Said linear bearing 47b is moved on said axis of guide 47a, thereby make abrasive band 46 on the said burnishing device 4, thereby polish in other places that move to said screw rod 200 when rotated along with the screw channel of screw rod 200 moves horizontally.After having polished, discharge said burnishing device 4, because the restoring force effect of said compression spring 49b, said burnishing device 4 upwards rotates along its articulated section, makes abrasive band 46 leave said screw rod 200 surfaces and can stop polishing.When said abrasive band 46 uses a period of times to change, control said cylinder, make in the piston rod indentation cylinder body of said cylinder through said control system; And then drive said driven pulley 44 and retreat; Thereby said abrasive band 46 is loosened, can take off replacing, the piston rod of changing the said cylinder of back control stretches out cylinder body; And then promote to move on the said driven pulley 44, thereby the said abrasive band 46 of tensioning can continue to use.
Certainly; Said horizontal mobile mechanism 47 also can be combined by servomotor and ball wire bar pair; Utilize said servomotor and said ball wire bar pair that said burnishing device is moved around on the length direction of said screw rod automatically, thereby realize automatic polishing, be not described in detail at this.
Because the utility model utilizes the end clamping of said chuck 31 with said screw rod 200, said thimble 32 contacts at the other end of said screw rod 200, thereby makes said screw rod 200 horizontal positioned; Again the said abrasive band 46 on the said burnishing device 4 is contacted on the surface of said screw rod 200,, make the surface finish of said abrasive band 46 at said screw rod 200 through driving wheel 43 and driven pulley band 44 moving said abrasive bands 46; And utilize horizontal mobile mechanism 47 on the length direction of said screw rod 200, to move around and drive moving around of whole burnishing device 4; Thereby solve the irremovable problem of general polishing machine fuselage, realize whole screw rod 200 polished, manually polish with traditional thousand pages of wheels of use and compare; The utility model uses abrasive band 46 can effectively reduce the dust that polishing produces; Effectively improve production environment, and only need manually press down said burnishing device 4 and can realize automatic polishing, operate very simple and convenient; Production efficiency is greatly improved, and has saved a large amount of production costs.
The control method of the control system that the utility model screw rod specialized high-speed polishing machine 100 is involved is well known to those of ordinary skill in the art, no longer does detailed explanation at this.
The above disclosed preferred embodiments that is merely the utility model can not limit the interest field of the utility model certainly with this, so according to the equivalent variations that the utility model claim is done, still belong to the scope that the utility model is contained.
Claims (6)
1. screw rod specialized high-speed polishing machine; It is characterized in that: comprise machine tool main body, driving mechanism, clamping device, burnishing device and control system, said screw rod horizontal positioned, said clamping device comprises chuck and thimble; One end of the said screw rod of said chuck clamping; Said thimble contacts at the other end of said screw rod, and said driving mechanism is installed on the said machine tool main body and output is connected with said chuck, and said burnishing device comprises mounting bracket, motor, driving wheel, driven pulley, guide wheel, abrasive band and horizontal mobile mechanism; Said horizontal mobile mechanism can be connected on the said machine tool main body with moving horizontally; Said mounting bracket is articulated on the said horizontal mobile mechanism, and said motor is installed on the said mounting bracket and output is connected with said driving wheel, and said driving wheel, driven pulley and guide wheel are articulated in respectively on the said mounting bracket; Said abrasive band is wound on said driving wheel, driven pulley and the guide wheel, and said control system is electrically connected with said driving mechanism and clamping device.
2. screw rod specialized high-speed polishing machine as claimed in claim 1; It is characterized in that: said driving mechanism comprises variable-frequency motor, drive pulley, driven pulley, belt and main shaft; Said variable-frequency motor is installed on the said machine tool main body, and output is connected with said drive pulley, and said main shaft is articulated on the said machine tool main body and an end is connected with said driven pulley; The other end is connected with said chuck, and said belt is wound on said drive pulley and the driven pulley.
3. screw rod specialized high-speed polishing machine as claimed in claim 1; It is characterized in that: said clamping device also comprises the thimble dolly; Said thimble is installed on the said thimble dolly, offers guide rail on the said machine tool main body, and said thimble dolly is installed on the said guide rail movably.
4. screw rod specialized high-speed polishing machine as claimed in claim 1; It is characterized in that: said burnishing device also comprises tensioning apparatus; Said tensioning apparatus is a cylinder, and the cylinder body of said cylinder is fixed on the said mounting bracket, and the piston rod output of said cylinder and said driven pulley articulate.
5. screw rod specialized high-speed polishing machine as claimed in claim 1; It is characterized in that: said burnishing device also comprises elastic parts; Said elastic parts comprises guide pillar and compression spring; Said guide pillar is fixed on the said mounting bracket, and said compression spring housing is connected on the said guide pillar and an end and the conflict of said mounting bracket, and the other end and said horizontal mobile mechanism are conflicted.
6. screw rod specialized high-speed polishing machine as claimed in claim 1, it is characterized in that: said horizontal mobile mechanism comprises the axis of guide and linear bearing, and the said axis of guide flatly is installed on the said mounting bracket, and said linear bearing is socketed on the said axis of guide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120171989U CN202137669U (en) | 2011-05-26 | 2011-05-26 | High-speed polishing machine special for screws |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120171989U CN202137669U (en) | 2011-05-26 | 2011-05-26 | High-speed polishing machine special for screws |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202137669U true CN202137669U (en) | 2012-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120171989U Expired - Fee Related CN202137669U (en) | 2011-05-26 | 2011-05-26 | High-speed polishing machine special for screws |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202137669U (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103042456A (en) * | 2012-12-26 | 2013-04-17 | 浙江黄岩江鑫锻造有限公司 | Special polishing equipment and special polishing process for automobile door hinge |
| CN105798776A (en) * | 2016-04-28 | 2016-07-27 | 浙江华业塑料机械有限公司 | Dust recycling device used on screw polishing machine |
| CN105834868A (en) * | 2016-04-28 | 2016-08-10 | 浙江华业塑料机械有限公司 | Screw polishing machine |
| TWI560011B (en) * | 2015-01-26 | 2016-12-01 | Univ Nat Sun Yat Sen | An apparatus in polishing the threaded surface |
| CN107486778A (en) * | 2017-10-06 | 2017-12-19 | 西南石油大学 | A kind of three-dimensional movable type sbrasive belt grinding special purpose machine tool |
| CN108500792A (en) * | 2018-04-02 | 2018-09-07 | 武汉理工大学 | A kind of surface rubbing down technique and equipment for odd-shaped cross section long rod part |
| CN108527088A (en) * | 2018-06-29 | 2018-09-14 | 常州信息职业技术学院 | A kind of steel pipe automatic polishing machine |
| CN108857770A (en) * | 2018-06-29 | 2018-11-23 | 常州信息职业技术学院 | A kind of equipment for polishing steel tube surface |
| CN109732484A (en) * | 2019-03-14 | 2019-05-10 | 舟山德玛吉实业有限公司 | A kind of screw rod polishing machine |
| CN109940492A (en) * | 2019-04-02 | 2019-06-28 | 宁波展纶精密机械有限公司 | A kind of floating type burnishing device |
| CN109968134A (en) * | 2019-04-27 | 2019-07-05 | 嘉兴新博信息科技有限公司 | A kind of automation control formula grinding integrated apparatus based on the processing of axis side |
| CN110091237A (en) * | 2018-01-31 | 2019-08-06 | 株式会社三信 | Worm screw grinding method and worm screw grinding device |
| CN111085908A (en) * | 2018-10-19 | 2020-05-01 | 加特可株式会社 | Supporting tool for band-shaped file |
| CN111890190A (en) * | 2020-07-22 | 2020-11-06 | 长沙湖航冶金设备有限公司 | Lathe is used in processing of screw pump screw rod |
| CN111975624A (en) * | 2020-08-18 | 2020-11-24 | 安徽晟禾智能机械有限公司 | Grinding and polishing machine and polishing process thereof |
| CN112247771A (en) * | 2020-09-24 | 2021-01-22 | 舟山昌佳塑料机械有限公司 | Screw polishing device |
| CN114346884A (en) * | 2022-03-17 | 2022-04-15 | 徐州瑞达装备制造有限公司 | High strength fastener manufacturing is with burnishing and polishing device |
-
2011
- 2011-05-26 CN CN201120171989U patent/CN202137669U/en not_active Expired - Fee Related
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103042456A (en) * | 2012-12-26 | 2013-04-17 | 浙江黄岩江鑫锻造有限公司 | Special polishing equipment and special polishing process for automobile door hinge |
| TWI560011B (en) * | 2015-01-26 | 2016-12-01 | Univ Nat Sun Yat Sen | An apparatus in polishing the threaded surface |
| CN105798776A (en) * | 2016-04-28 | 2016-07-27 | 浙江华业塑料机械有限公司 | Dust recycling device used on screw polishing machine |
| CN105834868A (en) * | 2016-04-28 | 2016-08-10 | 浙江华业塑料机械有限公司 | Screw polishing machine |
| CN105834868B (en) * | 2016-04-28 | 2018-04-27 | 浙江华业塑料机械有限公司 | Screw rod polishing machine |
| CN107486778A (en) * | 2017-10-06 | 2017-12-19 | 西南石油大学 | A kind of three-dimensional movable type sbrasive belt grinding special purpose machine tool |
| CN110091237B (en) * | 2018-01-31 | 2021-04-09 | 株式会社三信 | Worm grinding method and worm grinding device |
| CN110091237A (en) * | 2018-01-31 | 2019-08-06 | 株式会社三信 | Worm screw grinding method and worm screw grinding device |
| US11325218B2 (en) | 2018-01-31 | 2022-05-10 | Sanshin Co., Ltd. | Worm polishing method and device thereof |
| CN108500792A (en) * | 2018-04-02 | 2018-09-07 | 武汉理工大学 | A kind of surface rubbing down technique and equipment for odd-shaped cross section long rod part |
| CN108857770A (en) * | 2018-06-29 | 2018-11-23 | 常州信息职业技术学院 | A kind of equipment for polishing steel tube surface |
| CN108527088A (en) * | 2018-06-29 | 2018-09-14 | 常州信息职业技术学院 | A kind of steel pipe automatic polishing machine |
| CN111085908A (en) * | 2018-10-19 | 2020-05-01 | 加特可株式会社 | Supporting tool for band-shaped file |
| CN111085908B (en) * | 2018-10-19 | 2022-03-29 | 加特可株式会社 | Supporting tool for band-shaped file |
| CN109732484A (en) * | 2019-03-14 | 2019-05-10 | 舟山德玛吉实业有限公司 | A kind of screw rod polishing machine |
| CN109940492A (en) * | 2019-04-02 | 2019-06-28 | 宁波展纶精密机械有限公司 | A kind of floating type burnishing device |
| CN109968134B (en) * | 2019-04-27 | 2021-04-06 | 杭州龙砺智能科技有限公司 | Automatic control type grinding integrated device based on shaft side machining |
| CN109968134A (en) * | 2019-04-27 | 2019-07-05 | 嘉兴新博信息科技有限公司 | A kind of automation control formula grinding integrated apparatus based on the processing of axis side |
| CN111890190A (en) * | 2020-07-22 | 2020-11-06 | 长沙湖航冶金设备有限公司 | Lathe is used in processing of screw pump screw rod |
| CN111975624A (en) * | 2020-08-18 | 2020-11-24 | 安徽晟禾智能机械有限公司 | Grinding and polishing machine and polishing process thereof |
| CN112247771A (en) * | 2020-09-24 | 2021-01-22 | 舟山昌佳塑料机械有限公司 | Screw polishing device |
| CN114346884A (en) * | 2022-03-17 | 2022-04-15 | 徐州瑞达装备制造有限公司 | High strength fastener manufacturing is with burnishing and polishing device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120208 Termination date: 20140526 |