CN213054238U - Polishing head position adjusting device for double-station polishing machine - Google Patents
Polishing head position adjusting device for double-station polishing machine Download PDFInfo
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- CN213054238U CN213054238U CN202021557185.3U CN202021557185U CN213054238U CN 213054238 U CN213054238 U CN 213054238U CN 202021557185 U CN202021557185 U CN 202021557185U CN 213054238 U CN213054238 U CN 213054238U
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Abstract
The utility model discloses a rubbing head position control device for duplex position burnishing machine relates to the polishing equipment field, including the frame, be equipped with three station carousels in the frame, three station carousel tops are equipped with the backup pad, are equipped with two polishing units in the backup pad, and polishing unit is including the upper and lower adjusting part of drive buffing wheel pivoted buffing wheel drive assembly, drive buffing wheel drive assembly up-and-down motion, the left and right sides adjusting part of the front and back adjusting part, loading board, drive loading board side-to-side motion of drive buffing wheel drive assembly up-and-down motion, front and back adjusting part sets up in one side of keeping away from the backup pad middle part of upper and lower adjusting part. Can be through controlling side-to-side motion subassembly, seesaw subassembly and up-and-down motion subassembly, the machining position that can accurate regulation control throw aureola realizes the effect of automatic polishing, throws aureola and removes stably, guarantees the polishing precision and the quality of work piece, and the operation is light simple, and personnel require lowly.
Description
Technical Field
The utility model relates to a polishing equipment field especially relates to a rubbing head position control device for duplex position burnishing machine.
Background
The polishing process is a common workpiece surface processing process, a workpiece needs to be placed on a jig table during polishing, polishing is carried out through a polishing wheel, and during the polishing process, the position of the polishing wheel relative to the workpiece needs to be continuously adjusted, and meanwhile, the polishing wheel is constantly kept to be driven to rotate. The traditional polishing machine needs to manually control a grinding wheel to polish and polish. The polishing wheel is operated by hand feeling, the product quality is unstable, and dust harms the health of workers.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a rubbing head position control device for duplex position burnishing machine to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a rubbing head position control device for duplex position burnishing machine, includes the frame, is equipped with the three station carousels that are used for fixed and rotary fixture in the frame, three station carousel tops are equipped with the backup pad, are equipped with two polishing units in the backup pad, and polishing unit is including being used for driving polishing wheel pivoted polishing wheel drive assembly, the upper and lower adjusting part that is used for driving polishing wheel drive assembly up-and-down motion, the front and back adjusting part that is used for driving upper and lower adjusting part to make seesaw, be used for bearing vertically adjusting part and front and back adjusting part's loading board, be used for supporting the loading board perpendicularly and drive the left and right adjusting part of loading board side-to-side motion, front and back adjusting part sets up in one. Can be through controlling side-to-side motion subassembly, seesaw subassembly and up-and-down motion subassembly, the machining position that can accurate regulation control throw aureola realizes the effect of automatic polishing, throws aureola and removes stably, guarantees the polishing precision and the quality of work piece, and the operation is light simple, and personnel require lowly.
Furthermore, one end, far away from the left and right adjusting components, of the bearing plate is fixedly provided with a wire support portion, and the wire support portion is provided with a cable groove. The cable and the like are carried by the cable tray.
Further, throw aureola drive assembly and include motor cabinet, polishing bearing frame, throw optical axis, polishing motor, polishing action wheel, drive belt, polishing from the driving wheel, the motor cabinet lower surface is equipped with through throwing optical axis bearing frame and throws optical axis, be equipped with the motor chamber in the motor cabinet, the motor intracavity is equipped with and is used for driving to throw optical axis pivoted polishing motor, polishing motor is connected with the polishing action wheel, throw optical axis one end and be connected with and throw the aureola, throw the optical axis other end and be connected with the polishing from the driving wheel, throw the optical axis and pass through drive belt transmission with the. The motor cabinet is used for installing the polishing motor, and the polishing motor drive polishing action wheel rotates, and the polishing action wheel passes through the drive belt drive polishing and follows the driving wheel and rotate, and the polishing is followed the driving wheel drive and is polished the rotation of axle.
Further, polishing wheel drive assembly still includes polishing shell, backing plate and polishing protection casing, the motor cabinet is connected with the backing plate, the backing plate joint has the polishing protection casing, the polishing protection casing is equipped with the polishing chamber that is used for holding the polishing wheel, be connected with the polishing shell on the motor cabinet, the polishing shell indent is equipped with L type recess, polishing action wheel, polishing are all set up in L type recess from driving wheel, polishing bearing frame and polishing axle. The polishing shaft is protected by the polishing shell, and the polishing protective cover is used for shielding flying chips.
Further, the up-down adjusting component comprises a base plate, a side bracket, a limiting plate, a vertical plate, a horizontal plate, an upper bearing seat, a lower bearing seat, an upper screw rod, a lower screw rod, an upper motor, a lower motor, an upper belt transmission pair, an upper screw rod nut, a lower screw rod nut, an upper slide block, a lower slide block and a connecting seat, the base plate is symmetrically provided with side brackets, the two side brackets are both provided with limiting plates, a vertical plate is arranged between the two limiting plates, the upper end of the side support is provided with a horizontal plate, the side edge and the upper end of the vertical plate are respectively connected with a limiting plate and the horizontal plate, one surface of the vertical plate is provided with an upper screw rod and a lower screw rod through an upper bearing seat and a lower bearing seat, the other surface of the vertical plate is provided with an upper motor and a lower motor, the upper ends of the upper screw rod and the lower screw rod are in transmission connection with the upper motor and the lower motor through an upper belt, the upper and lower screw rod nuts are connected with the upper and lower sliding blocks, the upper end of the motor base is fixedly connected with a connecting seat, and the upper end of the connecting seat is fixedly connected with the upper and lower sliding blocks. The upper and lower motors drive the upper and lower screw rods through the upper and lower belt transmission pairs, the upper and lower screw rods rotate to enable the upper and lower screw rod nuts and the upper and lower slide blocks to move, and the upper and lower slide blocks drive the connecting seat to lift.
Furthermore, the up-down adjusting assembly also comprises two up-down guide rail pairs, each up-down guide rail pair comprises an up-down sliding block and an up-down guide rail, the up-down sliding blocks are abutted against and fixed on the vertical plate in parallel, the up-down guide rail is fixed on the connecting seat, and the up-down sliding blocks are arranged on the up-down guide rail in a sliding mode. The motion tracks of the connecting seat and the sliding block are limited through the upper guide rail pair and the lower guide rail pair.
Furthermore, the side support is provided with a side groove in clearance fit with the limiting plate, and the limiting plate is provided with a limiting groove in clearance fit with the vertical plate. And the limiting plate is positioned through the side groove.
Further, the front and back adjusting assembly comprises a front and back mounting seat, a front and back hydraulic motor, a front and back bearing seat, a front and back screw rod nut and a front and back sliding block, the front and back mounting seat is arranged on the side edge of the bearing plate, the front and back mounting seat is provided with the front and back hydraulic motor, the front and back screw rod is arranged on one side of the front and back mounting seat through the front and back bearing seat, one end of the front and back screw rod is in transmission connection with the front and back hydraulic motor, the front and back screw rod is provided with the front and back screw rod nut, the front and. The front and rear screw rods are driven by the front and rear hydraulic motors to rotate, the front and rear screw rod nuts and the front and rear sliders move along the front and rear screw rod shafts when the front and rear screw rods rotate, and the front and rear sliders drive the substrate to move through the side plates.
Furthermore, the rotating shafts of the front hydraulic motor and the rear hydraulic motor are connected with the front screw rod and the rear screw rod through couplers, middle grooves are formed in the middle of the front mounting seat and the rear mounting seat, and the couplers are arranged in the middle grooves. The rotating shafts of the front hydraulic motor and the rear hydraulic motor are directly connected with the front screw rod and the rear screw rod, so that the space is saved.
Further, control the adjusting part including control the bearing frame, control the lead screw, control screw nut, control the slider, control from the driving wheel, control hydraulic motor, control the action wheel, be equipped with through controlling the bearing frame in the backup pad about, lead screw nut about, be equipped with on the lead screw about, lead screw nut is equipped with about, slider and loading board bottom surface fixed connection about, lead screw one end is connected with about from the driving wheel, and one side that the adjusting part was kept away from about the lead screw is equipped with about hydraulic motor, about hydraulic motor is connected with about the action wheel, control the action wheel and control and be connected through the belt transmission from the driving wheel about with controlling. The left hydraulic motor and the right hydraulic motor drive the left driving wheel and the right driving wheel to rotate, the left driving wheel and the right driving wheel drive the left driven wheel and the right driven wheel to rotate, the left driven wheel and the right driven wheel drive the left lead screw and the right lead screw to rotate, the left lead screw and the right lead screw rotate to enable the left lead screw nut and the right slide block to move.
The utility model has the advantages that: can be through controlling side-to-side motion subassembly, seesaw subassembly and up-and-down motion subassembly, the machining position that can accurate regulation control throw aureola realizes the effect of automatic polishing, throws aureola and removes stably, guarantees the polishing precision and the quality of work piece, and the operation is light simple, and personnel require lowly.
Drawings
The figures further illustrate the invention, but the embodiments in the figures do not constitute any limitation of the invention.
Fig. 1 is a schematic structural diagram of a polishing unit according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a polishing head position adjusting device for a double-station polishing machine.
The labels in the figure are: the polishing machine comprises a frame 1, a three-station turntable 2, a supporting plate 3, a polishing unit 4, a polishing wheel driving assembly 5, an up-down adjusting assembly 6, a front-back adjusting assembly 7, a bearing plate 8, a left-right adjusting assembly 9 and a wire support part 10.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.
In the present invention, unless otherwise specified, the terms of orientation such as "up, down, left, and right" used generally refer to up, down, left, and right as shown in fig. 1. "inner and outer" refer to the inner and outer portions of a particular contour. "distal and proximal" refer to distal and proximal relative to a component.
As shown in fig. 1-2, an embodiment of the present invention provides a polishing head position adjustment device for a dual-station polishing machine, which includes a frame 1, a three-station turntable 2 for fixing and rotating a fixture is disposed on the frame 1, a supporting plate 3 is arranged above the three-station turntable 2, two polishing units 4 are arranged on the supporting plate 3, each polishing unit 4 comprises a polishing wheel driving component 5 for driving a polishing wheel to rotate, an up-down adjusting component 6 for driving the polishing wheel driving component 5 to move up and down, a front-back adjusting component 7 for driving the up-down adjusting component 6 to move back and forth, a bearing plate 8 for vertically bearing the up-down adjusting component 6 and the front-back adjusting component 7, and a left-right adjusting component 9 for vertically supporting the bearing plate 8 and driving the bearing plate 8 to move left and right, the front and back adjusting component 7 is arranged on one side of the up and down adjusting component 6, which is far away from the middle part of the supporting plate 3. Can be through controlling side-to-side motion subassembly, seesaw subassembly and up-and-down motion subassembly, the machining position that can accurate regulation control throw aureola realizes the effect of automatic polishing, throws aureola and removes stably, guarantees the polishing precision and the quality of work piece, and the operation is light simple, and personnel require lowly.
One end, far away from the left-right adjusting component 9, of the bearing plate 8 is fixedly provided with a wire support part 10, and the wire support part 10 is provided with a cable groove. The cable and the like are carried by the cable tray.
Polishing wheel drive assembly 5 includes motor cabinet, polishing bearing frame, polishing axle, polishing motor, polishing action wheel, drive belt, polishing from the driving wheel, the motor cabinet lower surface is equipped with the polishing axle through polishing bearing frame, be equipped with the motor chamber in the motor cabinet, the motor intracavity is equipped with and is used for driving polishing axle pivoted polishing motor, polishing motor is connected with the polishing action wheel, polishing axle one end is connected with the polishing wheel, the polishing axle other end is connected with the polishing from the driving wheel, and the polishing action wheel passes through the drive belt with the polishing from the driving wheel and is connected. The motor cabinet is used for installing the polishing motor, and the polishing motor drive polishing action wheel rotates, and the polishing action wheel passes through the drive belt drive polishing and follows the driving wheel and rotate, and the polishing is followed the driving wheel drive and is polished the rotation of axle.
Polishing wheel drive assembly 5 still includes polishing shell, backing plate and polishing protection casing, the motor cabinet is connected with the backing plate, the backing plate joint has the polishing protection casing, the polishing protection casing is equipped with the polishing chamber that is used for holding polishing wheel, be connected with the polishing shell on the motor cabinet, the polishing shell indent is equipped with L type recess, the polishing action wheel, polishing are all set up in L type recess from driving wheel, polishing bearing frame and polishing axle. The polishing shaft is protected by the polishing shell, and the polishing protective cover is used for shielding flying chips.
The up-down adjusting component 6 comprises a base plate, a side bracket, a limiting plate, a vertical plate, a horizontal plate, an upper bearing seat, a lower bearing seat, an upper screw rod, a lower screw rod, an upper motor, a lower motor, an upper belt transmission pair, an upper screw rod nut, a lower screw rod nut, an upper sliding block, a lower sliding block and a connecting seat, the base plate is symmetrically provided with side brackets, the two side brackets are both provided with limiting plates, a vertical plate is arranged between the two limiting plates, the upper end of the side support is provided with a horizontal plate, the side edge and the upper end of the vertical plate are respectively connected with a limiting plate and the horizontal plate, one surface of the vertical plate is provided with an upper screw rod and a lower screw rod through an upper bearing seat and a lower bearing seat, the other surface of the vertical plate is provided with an upper motor and a lower motor, the upper ends of the upper screw rod and the lower screw rod are in transmission connection with the upper motor and the lower motor through an upper belt, the upper and lower screw rod nuts are connected with the upper and lower sliding blocks, the upper end of the motor base is fixedly connected with a connecting seat, and the upper end of the connecting seat is fixedly connected with the upper and lower sliding blocks. The upper and lower motors drive the upper and lower screw rods through the upper and lower belt transmission pairs, the upper and lower screw rods rotate to enable the upper and lower screw rod nuts and the upper and lower slide blocks to move, and the upper and lower slide blocks drive the connecting seat to lift.
The up-down adjusting assembly 6 further comprises two up-down guide rail pairs, each up-down guide rail pair comprises an up-down sliding block and an up-down guide rail, the up-down sliding blocks are abutted against and fixed on the vertical plate in parallel, the up-down guide rail is fixed on the connecting seat, and the up-down sliding blocks are arranged on the up-down guide rail in a sliding mode. The motion tracks of the connecting seat and the sliding block are limited through the upper guide rail pair and the lower guide rail pair.
The side support is provided with a side groove in clearance fit with the limiting plate, and the limiting plate is provided with a limiting groove in clearance fit with the vertical plate. And the limiting plate is positioned through the side groove.
Front and back adjusting part 7 is including front and back mount pad, front and back hydraulic motor, front and back bearing frame, front and back lead screw, front and back screw-nut, front and back slider, and the mount pad around 8 sides of loading board are equipped with, and front and back mount pad is equipped with front and back hydraulic motor, and front and back mount pad one side is equipped with front and back lead screw through front and back bearing frame, and front and back lead screw one end is connected with front and back hydraulic motor transmission, is equipped with front and back screw-nut around on the lead screw, and front and back screw-nut is equipped with front and back slider, the extension of base plate side. The front and rear screw rods are driven by the front and rear hydraulic motors to rotate, the front and rear screw rod nuts and the front and rear sliders move along the front and rear screw rod shafts when the front and rear screw rods rotate, and the front and rear sliders drive the substrate to move through the side plates.
The rotating shaft of the front hydraulic motor and the rotating shaft of the rear hydraulic motor are connected with the front screw rod and the rear screw rod through couplers, middle grooves are formed in the middle of the front mounting seat and the rear mounting seat, and the couplers are arranged in the middle grooves. The rotating shafts of the front hydraulic motor and the rear hydraulic motor are directly connected with the front screw rod and the rear screw rod, so that the space is saved.
Control adjusting part 9 including control bearing frame, control the lead screw, control screw nut, control the slider, control from the driving wheel, control hydraulic motor, control action wheel, be equipped with through controlling the bearing frame on backup pad 3 about the lead screw, control the lead screw nut about being equipped with on the lead screw, control the lead screw nut and be equipped with about slider about, control slider and 8 bottom surfaces fixed connection of loading board, control lead screw one end and be connected with about from the driving wheel, control one side that adjusting part 6 was kept away from about the lead screw and be equipped with about hydraulic motor, control hydraulic motor and be connected with about and control the action wheel, control the action wheel and control and be connected through the belt transmission. The left hydraulic motor and the right hydraulic motor drive the left driving wheel and the right driving wheel to rotate, the left driving wheel and the right driving wheel drive the left driven wheel and the right driven wheel to rotate, the left driven wheel and the right driven wheel drive the left lead screw and the right lead screw to rotate, the left lead screw and the right lead screw rotate to enable the left lead screw nut and the right slide block to move, and.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The utility model provides a burnishing head position control device for duplex position burnishing machine which characterized in that: the polishing machine comprises a frame, wherein a three-station turntable used for fixing and rotating a clamp is arranged on the frame, a supporting plate is arranged above the three-station turntable, two polishing units are arranged on the supporting plate, each polishing unit comprises a polishing wheel driving component used for driving a polishing wheel to rotate, an upper and lower adjusting component used for driving the polishing wheel driving component to move up and down, a front and rear adjusting component used for driving the upper and lower adjusting component to move front and rear, a bearing plate used for vertically bearing the upper and lower adjusting component and the front and rear adjusting component, a left and right adjusting component used for vertically supporting the bearing plate and driving the bearing plate to move left and right, and the front and rear adjusting component is arranged on one side.
2. The polishing head position adjusting device for the double-station polishing machine according to claim 1, wherein: the one end of adjusting part is fixed to be equipped with the line support portion about the loading board is kept away from, cable groove has been seted up to the line support portion.
3. The polishing head position adjusting device for the double-station polishing machine according to claim 2, wherein: the polishing wheel drive assembly comprises a motor base, a polishing bearing seat, a polishing shaft, a polishing motor, a polishing driving wheel, a transmission belt and a polishing driven wheel, wherein the polishing shaft is arranged on the lower surface of the motor base through the polishing bearing seat, a motor cavity is arranged in the motor base, the polishing motor used for driving the polishing shaft to rotate is arranged in the motor cavity, the polishing motor is connected with the polishing driving wheel, one end of the polishing shaft is connected with the polishing wheel, the other end of the polishing shaft is connected with the polishing driven wheel, and the polishing driving wheel is in transmission connection with the polishing driven wheel through the transmission belt.
4. The polishing head position adjusting device for the double-station polishing machine according to claim 3, wherein: the polishing wheel drive assembly further comprises a polishing shell, a base plate and a polishing protective cover, the motor base is connected with the base plate, the base plate is connected with the polishing protective cover, the polishing protective cover is provided with a polishing cavity for containing the polishing wheel, the motor base is connected with the polishing shell, an L-shaped groove is concavely arranged on the polishing shell, and the polishing driving wheel, the polishing bearing seat and the polishing shaft are all arranged in the L-shaped groove.
5. The polishing head position adjusting device for the double-station polishing machine according to claim 4, wherein: the up-down adjusting component comprises a base plate, a side bracket, a limiting plate, a vertical plate, a horizontal plate, an upper bearing seat, a lower bearing seat, an upper screw rod, a lower screw rod, an upper motor, a lower motor, an upper belt transmission pair, a lower belt transmission pair, an upper screw rod nut, a lower screw rod nut, an upper sliding block, a lower sliding block and a connecting seat, the base plate is symmetrically provided with side brackets, the two side brackets are both provided with limiting plates, a vertical plate is arranged between the two limiting plates, the upper end of the side support is provided with a horizontal plate, the side edge and the upper end of the vertical plate are respectively connected with a limiting plate and the horizontal plate, one surface of the vertical plate is provided with an upper screw rod and a lower screw rod through an upper bearing seat and a lower bearing seat, the other surface of the vertical plate is provided with an upper motor and a lower motor, the upper ends of the upper screw rod and the lower screw rod are in transmission connection with the upper motor and the lower motor through an upper belt, the upper and lower screw rod nuts are connected with the upper and lower sliding blocks, the upper end of the motor base is fixedly connected with a connecting seat, and the upper end of the connecting seat is fixedly connected with the upper and lower sliding blocks.
6. The polishing head position adjusting device for the double-station polishing machine according to claim 5, wherein: the upper and lower adjusting component also comprises two upper and lower guide rail pairs, each upper and lower guide rail pair comprises an upper and lower sliding block which are abutted against and fixed on the vertical plate in parallel and an upper and lower guide rail which is fixed on the connecting seat, and the upper and lower sliding blocks are arranged on the upper and lower guide rails in a sliding manner.
7. The polishing head position adjusting device for the double-station polishing machine according to claim 6, wherein: the side support is provided with a side groove in clearance fit with the limiting plate, and the limiting plate is provided with a limiting groove in clearance fit with the vertical plate.
8. The polishing head position adjusting device for the double-station polishing machine according to claim 6, wherein: front and back adjusting part includes front and back mount pad, front and back hydraulic motor, front and back bearing frame, front and back lead screw, front and back screw-nut, front and back slider, and the mount pad around the loading board side is equipped with, and front and back mount pad is equipped with front and back hydraulic motor, and front and back mount pad one side is equipped with front and back lead screw through front and back bearing frame, and front and back lead screw one end is connected with front and back hydraulic motor transmission, is equipped with front and back screw-nut around being equipped with on the lead screw, and front and back screw-nut is equipped with front and back slider, the extension of base.
9. The polishing head position adjusting device for the double-station polishing machine according to claim 8, wherein: the rotating shaft of the front hydraulic motor and the rotating shaft of the rear hydraulic motor are connected with the front screw rod and the rear screw rod through couplers, middle grooves are formed in the middle of the front mounting seat and the rear mounting seat, and the couplers are arranged in the middle grooves.
10. A polishing head position adjusting device for a double-station polisher according to claim 9 wherein: control the adjusting part including control the bearing frame, control the lead screw, control screw nut, control the slider, control from the driving wheel, control hydraulic motor, control the action wheel, through controlling bearing frame is equipped with about the lead screw in the backup pad, control be equipped with about screw nut on the lead screw, control the lead screw nut and be equipped with about slider about, control slider and loading board bottom surface fixed connection, control lead screw one end and be connected with about from the driving wheel, control one side that the adjusting part was kept away from about the lead screw and be equipped with about hydraulic motor, control hydraulic motor and be connected with about the action wheel, control the action wheel and control and be connected through the belt transmission from.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021557185.3U CN213054238U (en) | 2020-07-31 | 2020-07-31 | Polishing head position adjusting device for double-station polishing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021557185.3U CN213054238U (en) | 2020-07-31 | 2020-07-31 | Polishing head position adjusting device for double-station polishing machine |
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| CN213054238U true CN213054238U (en) | 2021-04-27 |
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| CN202021557185.3U Active CN213054238U (en) | 2020-07-31 | 2020-07-31 | Polishing head position adjusting device for double-station polishing machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115179170A (en) * | 2022-04-26 | 2022-10-14 | 东莞市尚弘博实业有限公司 | Double-end burnishing machine |
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2020
- 2020-07-31 CN CN202021557185.3U patent/CN213054238U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115179170A (en) * | 2022-04-26 | 2022-10-14 | 东莞市尚弘博实业有限公司 | Double-end burnishing machine |
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