CN210704138U - Polishing equipment - Google Patents
Polishing equipment Download PDFInfo
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- CN210704138U CN210704138U CN201921119017.3U CN201921119017U CN210704138U CN 210704138 U CN210704138 U CN 210704138U CN 201921119017 U CN201921119017 U CN 201921119017U CN 210704138 U CN210704138 U CN 210704138U
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Abstract
The utility model discloses a polishing equipment, include: the grinding disc assembly comprises a plurality of grinding discs; the grinding disc driving device is used for driving the grinding disc to move in a plane, and the grinding disc assembly is connected with the grinding disc driving device; the grinding disc mounting frame is connected with the grinding disc assembly; the output ends of the balance driving devices are connected to the millstone mounting rack; the fixed end of the balance driving device is fixed on the frame. Through setting up balanced drive arrangement and mill mounting bracket, can adjust the plane degree of mill, the mill keeps under the plane degree after the adjustment under the effect of gravity and mill mounting bracket, can realize the finish machining to the work piece, can effectively improve work piece processing yield.
Description
Technical Field
The utility model relates to a polishing technical field, in particular to polishing equipment.
Background
In the polishing operation, the mill needs to guarantee the plane degree, and in the overall arrangement of current polishing equipment, the plane degree of mill can't be adjusted, is difficult to guarantee the effect of polishing to the work piece, can influence the yield of product.
Therefore, how to realize the adjustment of the flatness of the grinding disc is a technical problem which needs to be solved by the technical personnel in the field at present.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a polishing equipment can realize the adjustment to the mill plane degree.
In order to achieve the above object, the utility model provides a following technical scheme:
a polishing apparatus comprising:
the grinding disc assembly comprises a plurality of grinding discs;
a disc drive for driving the planar movement of the disc, the disc assembly being connected to the disc drive;
a disc mounting bracket to which the disc assembly is attached;
the output end of each balance driving device is connected with the grinding disc mounting frame;
the fixed end of the balance driving device is fixed on the frame.
Preferably, the method further comprises the following steps:
a work table;
the workbench driving device is used for driving the workbench to move between an original point position and a working position, the output end of the workbench driving device is connected with the workbench, the working position is arranged under the grinding disc in the height direction, the original point position and the working position are staggered in the height direction perpendicular to the working position, and the workbench is positioned at the original point position and is not in contact with the grinding disc.
Preferably, the worktable driving device is a linear driving device, and the driving direction is perpendicular to the height direction.
Preferably, the grinding disc grinding device further comprises a lifting driving device for driving the grinding disc assembly to move up and down along the height direction; the output end of the lifting driving device is fixed on the millstone mounting rack, and the fixed end of the lifting driving device is fixedly connected with the rack.
Preferably, the grinding disc grinding machine further comprises a detection device for detecting the flatness of the grinding disc, and the detection device is connected to the machine frame.
Preferably, the grinding disc assembly further comprises a first rotary disc arranged on the upper side of the grinding disc, a central shaft is fixed at the center of each grinding disc, the central shaft is rotatably inserted into the first rotary disc, a transmission shaft is fixed at the center of the first rotary disc, the transmission shaft is in transmission connection with the grinding disc driving device through a first transmission piece, and the transmission shaft is in transmission connection with the central shaft through a second transmission piece.
Preferably, the first transmission member includes a first gear fixed to the transmission shaft and a second gear fixed to an output end of the grinding disc driving device, and the second transmission member includes a third gear fixed to the transmission shaft and a fourth gear fixed to the central shaft.
Preferably, the second gear and the fourth gear are gears of the same type.
Preferably, the grinding disc assembly further comprises a second rotary disc arranged above the first rotary disc; the transmission shaft is fixed on the second rotary table and penetrates through the second rotary table upwards, the first transmission piece is arranged above the second rotary table, the second transmission piece is arranged between the second rotary table and the first rotary table, and the central shaft penetrates through the first rotary table upwards.
Preferably, the first rotating disc and the second rotating disc are circular discs, and the first rotating disc and the second rotating disc are respectively connected to the corresponding circular tracks on the millstone mounting frame in a rotating manner.
The utility model provides a polishing equipment, include: the grinding disc assembly comprises a plurality of grinding discs; the grinding disc driving device is used for driving the grinding disc to move in a plane, and the grinding disc assembly is connected with the grinding disc driving device; the grinding disc mounting frame is connected with the grinding disc assembly; the output ends of the balance driving devices are connected to the millstone mounting rack; the fixed end of the balance driving device is fixed on the frame.
Through setting up balanced drive arrangement and mill mounting bracket, can adjust the plane degree of mill, the mill keeps under the plane degree after the adjustment under the effect of gravity and mill mounting bracket, can realize the finish machining to the work piece, can effectively improve work piece processing yield.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural view of a grinding disc assembly after a workpiece is at an original position according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of the grinding disc assembly lowered to an operating position with the workpiece in the operating position according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of the grinding disc assembly lowered to an operating position when the workpiece is at the home position according to an embodiment of the present invention;
fig. 4 is a block diagram of the abrasive disc assembly and the abrasive disc mounting bracket portion of an embodiment of the present invention.
In fig. 1 to 4:
1-machine bed, 2-Y-axis guide rail, 3-Y-axis screw rod, 4-grinding disc, 5-upright post, 6-grinding disc mounting rack, 7-first rotary disc, 8-cylinder connecting plate, 9-balance guide rail, 10-balance cylinder, 11-cylinder, 12-cylinder movable rod, 13-cylinder fixing plate, 14-workpiece, 15-motor, 16-beam plate, 17-motor base, 18-driving piece mounting rack, 19-second rotary disc, 20-grinding disc assembly, 21-transmission shaft, 22-workbench, 23-fourth gear, 24-third gear, 25-first gear, 26-second gear, 27-central shaft and 28-circular track.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The core of the utility model is to provide a polishing equipment can realize the adjustment to the mill plane degree.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the upper and lower parts and the like are the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the indicated device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention. Furthermore, the first and second are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In one embodiment of the polishing apparatus provided by the present invention, please refer to fig. 1 to 4, which includes a disc assembly 20, a disc driving device, a disc mounting frame 6, a frame and a plurality of balance driving devices.
The grinding disc assembly 20 comprises a plurality of grinding discs 4, and specifically may comprise one or at least two grinding discs 4, and the grinding discs 4 are used for grinding and polishing the workpiece 14, as shown in fig. 4, in the present embodiment, the grinding disc assembly 20 comprises four grinding discs 4. The grinding disc drive is used to drive the grinding disc 4 in a planar motion, which is generally perpendicular to the height direction, and may specifically include rotational and/or planar movement motions to effect grinding of the workpiece 14 by the grinding assembly. The disc assembly 20 is connected to a disc drive. Alternatively, the grinding disc drive may be a motor 15, cylinder, or the like drive.
The disc assembly 20 is attached to the disc mount 6. The output end of each balance driving device is connected to the millstone mounting frame 6, so that each balance driving device can be matched with the planeness of the millstone mounting frame 6 to correspondingly adjust the planeness of the millstone 4 connected to the millstone mounting frame 6. The fixed end of the balance driving device is fixed on the frame.
Wherein, optionally, the balance driving device can comprise a balance cylinder 10 and a balance guide rail 9 fixed at the output end of the balance cylinder 10, and the balance guide rail 9 is fixedly connected with the grinding disc mounting frame 6. As shown in fig. 2, the number of balance driving devices is set to 4, and the 4 balance driving devices are disposed at four vertex positions of one virtual rectangle. In the process of installing the grinding disc assembly 20, the output ends of the balance cylinders 10 drive the balance guide rails 9 to extend downwards and retract upwards, balance and balance weight during up-and-down movement of the grinding disc 4 can be achieved, the flatness of the grinding disc mounting frame 6 can be adjusted, therefore, the flatness of the grinding disc 4 on the grinding disc mounting frame 6 can be correspondingly adjusted, and the precision does not need to be maintained after installation and debugging.
Of course, in other embodiments, 1, 3, 5, 8 or other numbers of balancing drives may be provided. The balance driving device may be a driving device such as a linear module.
In this embodiment, through setting up balanced drive arrangement and mill mounting bracket 6, can adjust the plane degree of mill 4, mill 4 keeps under the plane degree after the adjustment under the effect of gravity and mill mounting bracket 6, can realize the finish machining to work piece 14, can effectively improve work piece 14 processing yield.
Further, the polishing apparatus further includes a table 22 for placing the workpiece 14 to be polished and a table driving device for driving the table 22 to move between the origin position and the working position, an output end of the table driving device being connected to the table 22. Specifically, the working position is located under the grinding disc 4, the origin position and the working position are staggered in the direction perpendicular to the height direction, and when the working table 22 is located at the origin position, the working table 22 does not contact the grinding disc 4, and the working table driving device needs to meet the requirement that the working table 22 moves between the working position and the origin position. The grinding disc 4 can grind the workpiece 14 directly below it.
The origin and the working position are staggered in the direction perpendicular to the height direction, that is, the columnar path formed by the translation of the working table 22 at the origin along the height direction and the columnar path formed by the translation of the working table 22 at the working position along the height direction do not have an overlapping space. Alternatively, as shown in fig. 2, the table 22 switches the position between the origin position and the working position by moving only in the direction perpendicular to the height direction (specifically, may be linear movement, polygonal movement, or curved movement); or, the workbench 22 may switch the position between the original position and the working position by moving in the height direction and at least two directions perpendicular to the height direction, for example, after the workbench 22 at the original position moves to a specific position by a linear direction perpendicular to the height direction, the height of the workbench 22 is adjusted by moving in the height direction until the workbench reaches the working position, so that the workbench 22 at the working position is adapted to the operation height of the worker during the material placing.
As shown in figure 1, workstation drive arrangement drive workstation 22 moves to the home position, carries out the unloading of work piece 14 this moment on, if the mill subassembly 20 drops, can drop towards under usually, because the home position is outside under the work position, can avoid pounding the staff, has improved the security of equipment usage, in addition, workstation drive arrangement can make workstation 22 parking position regular, can make things convenient for the manual work to get and put or automatic unloading. As shown in FIG. 2, after the table 22 is driven by the table driving device to move to the working position, the table 22 and the grinding disc assembly are reliably matched to perform a single-side polishing operation.
Wherein, preferably, the worktable driving device is a linear driving device, and the driving direction is perpendicular to the height direction. That is, the position switching of the table 22 between the home position and the working position is achieved only by the linear movement perpendicular to the height direction, the operation is facilitated, and the possibility that the table 22 moves in the height direction to collide with the disc assembly 22 during the position switching is avoided.
As shown in fig. 1 and 2, the linear driving means may include a Y-axis screw nut assembly and a driver connected to the Y-axis screw 3 in the Y-axis screw nut assembly, the nut in the Y-axis screw nut assembly is fixed to the bottom surface of the table 22, and the rotation of the driver may be converted into the linear movement of the table 22 in the Y-axis direction perpendicular to the height direction by the Y-axis screw nut assembly. More specifically, Y axle screw nut component can set up between two Y axle guide rails 2, sliding connection slider on Y axle guide rail 2, the bottom surface of slider fixed connection workstation 22, and the setting of Y axle guide rail 2 can improve workstation 22 linear motion's stability. Of course, in other embodiments, the table driving device may also be a cylinder or other devices, or alternatively, the table driving device may also be a device capable of driving in at least two directions.
Wherein, optionally, as shown in fig. 2, the frame may include a machine bed 1, a column 5 fixed on the machine bed 1, and a beam plate 16 fixed on the column 5. The working table 22 and the working table driving device may be arranged on the top surface of the machine bed 1, and the fixed end of the working table driving device is fixedly connected to the machine bed 1. The fixed end of the balance driving device is connected to the cross beam plate 16, and the grinding disc mounting frame 6 and the grinding disc assembly 20 are arranged in a frame formed by the cross beam plate 16 and the upright post 5.
Further, the polishing apparatus further comprises a lifting driving device for driving the grinding disc assembly 20 to move up and down. The output end of the lifting driving device is fixed on the millstone mounting rack 6, and the fixed end of the lifting driving device is fixedly connected with the rack, and the lifting driving device can drive the millstone mounting rack 6 to move up and down along the height direction, so as to drive the millstone assembly 20 connected on the millstone mounting rack 6 to move up and down. Specifically, each balance driving device can be connected to the edge position of the millstone mounting frame 6 so as to mainly perform adjustment of flatness, and the lifting driving device can be connected to the position close to the center of the millstone mounting frame 6, so that the lifting driving device and each balance driving device are required to be matched and driven in the lifting movement and flatness adjustment process.
Wherein, optionally, as shown in fig. 2, a driving member mounting rack 18 is fixedly arranged above the grinding disc mounting rack 6, and the grinding disc driving device can be a motor 15, specifically, a belt encoder motor. The motor base 17 of the motor 15 is fixed to the driving member mounting frame 18, and the fixed end of the motor 15 is fixed to the motor base 17.
Wherein optionally the output end of the lift drive can be fixed to the drive mount 18 and the fixed end of the lift drive is fixed to the beam plate 16. The lift driving device specifically can be cylinder 11, be fixed with cylinder fixed plate 13 on the crossbeam board 16, the stiff end of cylinder 11 is fixed on this cylinder fixed plate 13, the output fixed connection cylinder movable rod 12 of cylinder 11, cylinder movable rod 12 fixed connection cylinder connecting plate 8, 8 fixed connection of cylinder connecting plate are on driving piece mounting bracket 18, the output of cylinder 11 drives 12 elevating movements of cylinder movable rod, and then drives mill mounting bracket 6 and 20 upper and lower actions of mill subassembly through cylinder movable rod 12.
Further, the polishing equipment also comprises a detection device for detecting the flatness of the grinding disc 4, and the detection device is connected with the frame, so that the automatic detection of the flatness can be realized. For example, the detecting device may be an infrared sensor connected to the upright 5, and the detecting light from the infrared sensor can detect the flatness of the bottom polishing surface of the grinding disc assembly 20. Or, the detection device may also be a camera, and the picture taken by the camera is compared with a preset picture pre-stored in the controller to determine whether the grinding disc assembly 20 is in the theoretical position under the preset picture. Of course, the flatness of the grinding disc 4 can also be achieved by manual inspection.
Further, as shown in fig. 4, the grinding disc assembly 20 further includes a first rotating disc 7 disposed on the upper side of the grinding disc 4, a central shaft 27 is fixed at the center of each grinding disc 4, the central shaft 27 is rotatably inserted into the first rotating disc 7, a transmission shaft 21 is fixed at the center of the first rotating disc 7, the transmission shaft 21 is connected to the grinding disc driving device through a first transmission member, and the transmission shaft 21 is connected to the central shaft 27 through a second transmission member. The first rotating disc 7 is driven to rotate synchronously by the transmission shaft 21, so that the grinding discs 4 can move along a preset circular track, namely, each grinding disc 4 revolves 360 degrees by taking the transmission shaft 21 as the center; the transmission shaft 21 drives the central shaft 27 to rotate, so that the grinding disc 4 can rotate 360 degrees by taking the self-connected central shaft 27 as the center, and the grinding disc 4 can be polished in all directions by one grinding disc driving device.
Wherein optionally the central shaft 27 may be connected to the first turning disc 7 by means of bearings to ensure a smooth rotation of the turning disc 4.
Further, as shown in fig. 4, the first transmission member includes a first gear 25 fixed to the transmission shaft 21 and a second gear 26 fixed to the output end of the disc drive device. The second transmission member includes a third gear 24 fixed to the transmission shaft 21 and a fourth gear 23 fixed to the central shaft 27. The grinding disc driving device drives the first gear 25 to rotate through the second gear 26, the transmission shaft 21 and the first gear 25 rotate synchronously, the first grinding disc 7 and the transmission shaft 21 rotate synchronously, the first grinding disc 7 rotates around the transmission shaft 21 as a center, the transmission shaft 21 drives the fourth gear 23 to rotate through the third gear 24, the fourth gear 23 rotates around a corresponding central shaft 27 synchronously, and the inner grinding disc 4 rotates around the central shaft 27 connected with the inner grinding disc 4. The gear transmission is adopted, the transmission precision is high, and the speed ratio between the grinding disc 4 and the grinding disc driving device is convenient to determine.
Further, the second gear 26 and the fourth gear 23 are the same type of gear, which facilitates calculation of the speed ratio of the grinding disc 4 to the grinding disc driving device, the grinding disc 4 rotates regularly, and facilitates control of the stop position of the grinding disc 4, for example, the gear ratio of the second gear 26 to the first gear 25 is 2:1, and the gear ratio of the third gear 24 to the fourth gear 23 is 1: 3.
Of course, in other embodiments, translation and rotation of the abrasive disc assembly 20 may be achieved by different drive arrangements; further alternatively, the first transmission member and the second transmission member may be provided as transmission devices such as a timing belt.
Further, the grinding disc assembly 20 further comprises a second rotary disc 19 arranged above the first rotary disc 7. The transmission shaft 21 is fixed on the second rotary table 19 and penetrates the second rotary table 19 upwards, the first transmission piece is arranged above the second rotary table 19, the second transmission piece is arranged between the second rotary table 19 and the first rotary table 7, and the central shaft 27 penetrates the first rotary table 7 upwards. The stability of the connection of the grinding disc 4 and the grinding disc mounting frame 6 can be improved through the support of the two turntables.
Further, the first rotating disc 7 and the second rotating disc 19 are circular discs, and the first rotating disc 7 and the second rotating disc 19 are respectively connected to the corresponding circular tracks 28 on the millstone mounting frame 6 in a rotating manner, so that the stability of connection between the rotating discs and the millstone mounting frame 6 is improved, and the reliability of adjusting the flatness of the millstone 4 by the balance driving device is further improved.
A specific use process of the polishing apparatus provided in this embodiment is as follows, and reference may be made to fig. 1 to 3 specifically:
the worktable driving device returns to the original position, the grinding disc assembly 20 rises to the original position → the product is loaded on the worktable 22 manually or automatically → the starting equipment starts polishing → the worktable driving device moves to the adding position, the grinding disc assembly 20 descends to the surface of the product → the motor 15 (i.e. the grinding disc driving device) rotates to drive the second gear 26 at the output end of the motor 15 → the second gear 26 drives the first gear 25 to rotate → the first gear 25 drives the transmission shaft 21 to rotate → the transmission shaft 21 drives the third gear 24 and the first rotary disc 7 to rotate → the third gear 24 drives the fourth gear 23 on the grinding disc 4 matched with the third gear 24 → the fourth gear 23 drives the grinding disc 4 to rotate → 4 inner grinding discs 4 start polishing the product → when the polishing time is over, the motor 15 (i.e. the grinding disc driving device) stops rotating, the grinding disc assembly 20 stops rotating → the grinding disc assembly 20 rises, the worktable driving device returns to the original position → loading and unloading are started manually or automatically → one action is finished back and forth.
This polishing equipment passes through cylinder 11 (lifting drive device promptly) control mill subassembly 20 up-and-down motion, and a motor 15 (mill drive device promptly) drives carousel, mill 4 and rotates the efficiency that plays the polishing, is a high efficiency stable, promotes the yield, promotes productivity, easy operation's equipment, conveniently realizes automatic upper and lower product operation, and equipment is simple reliable, easily promotes, and practical value is big, is applicable to the polishing of all little products.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The above is a detailed description of the polishing device provided by the present invention. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (10)
1. A polishing apparatus, characterized by comprising:
a grinding disc assembly (20) comprising a plurality of grinding discs (4);
a grinding disc driving device for driving the grinding disc (4) to move in a plane, wherein the grinding disc assembly (20) is connected with the grinding disc driving device;
a disc mounting (6), said disc assembly (20) being attached to said disc mounting (6);
a plurality of balance driving devices for adjusting the flatness of the grinding disc (4), wherein the output end of each balance driving device is connected to the grinding disc mounting rack (6);
the fixed end of the balance driving device is fixed on the frame.
2. The polishing apparatus according to claim 1, further comprising:
a table (22);
the workbench driving device is used for driving the workbench (22) to move between an original position and a working position, the output end of the workbench driving device is connected with the workbench (22), the working position is arranged under the grinding disc (4) in the height direction, the original position is staggered with the working position in the height direction perpendicular to the original position, and the workbench (22) is not in contact with the grinding disc (4) in the original position.
3. The polishing apparatus according to claim 2, wherein the table driving device is a linear driving device, and a driving direction is perpendicular to a height direction.
4. The polishing apparatus according to claim 1, further comprising an elevation driving means for moving the abrasive disc assembly (20) in an elevation direction; the output end of the lifting driving device is fixed on the millstone mounting rack (6), and the fixed end of the lifting driving device is fixedly connected with the rack.
5. A polishing apparatus according to claim 1, characterized in that it further comprises a detection device for detecting the flatness of the grinding disc (4), said detection device being connected to the machine frame.
6. The polishing device according to any one of claims 1 to 5, wherein the polishing disc assembly (20) further comprises a first rotating disc (7) arranged on the upper side of the polishing disc (4), a central shaft (27) is fixed at the center of each polishing disc (4), the central shaft (27) is rotatably inserted into the first rotating disc (7), a transmission shaft (21) is fixed at the center of the first rotating disc (7), the transmission shaft (21) is in transmission connection with the polishing disc driving device through a first transmission member, and the transmission shaft (21) is in transmission connection with the central shaft (27) through a second transmission member.
7. A polishing apparatus according to claim 6, characterized in that the first transmission member comprises a first gear wheel (25) fixed to the drive shaft (21) and a second gear wheel (26) fixed to the output of the disc drive, and that the second transmission member comprises a third gear wheel (24) fixed to the drive shaft (21) and a fourth gear wheel (23) fixed to the central shaft (27).
8. A polishing device according to claim 7, characterized in that the second gear wheel (26) and the fourth gear wheel (23) are of the same type.
9. The polishing apparatus according to claim 6, wherein the abrasive disc assembly (20) further comprises a second rotary disc (19) provided above the first rotary disc (7); the transmission shaft (21) is fixed on the second turntable (19) and upwards penetrates through the second turntable (19), the first transmission piece is arranged above the second turntable (19), the second transmission piece is arranged between the second turntable (19) and the first turntable (7), and the central shaft (27) upwards penetrates through the first turntable (7).
10. A polishing apparatus according to claim 9, characterized in that the first (7) and second (19) discs are rotatably connected to the disc mount (6) in corresponding circular tracks (28) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921119017.3U CN210704138U (en) | 2019-07-16 | 2019-07-16 | Polishing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921119017.3U CN210704138U (en) | 2019-07-16 | 2019-07-16 | Polishing equipment |
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| Publication Number | Publication Date |
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| CN210704138U true CN210704138U (en) | 2020-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921119017.3U Active CN210704138U (en) | 2019-07-16 | 2019-07-16 | Polishing equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110270910A (en) * | 2019-07-16 | 2019-09-24 | 蓝思科技股份有限公司 | Polissoir |
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2019
- 2019-07-16 CN CN201921119017.3U patent/CN210704138U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110270910A (en) * | 2019-07-16 | 2019-09-24 | 蓝思科技股份有限公司 | Polissoir |
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