Polishing Equipment and Polishing Method

Abstract

The present invention relates to a polishing device configured to polish U-shaped glass, which includes a first plate, a second plate, and a connecting portion located between the first plate and the second plate. The polishing device includes: a glass positioning module; at least one wool wheel; a first driving module configured to make the U-shaped glass and the wool wheel perform relative translational movement in a first direction; a second driving module configured to make the U-shaped glass and the wool wheel perform relative translational movement in a second direction perpendicular to the first direction; a third driving module configured to make the U-shaped glass and the wool wheel perform relative translational movement in a third direction perpendicular to the first direction and the second direction; and a fourth movement module configured to make the at least one wool wheel perform rotational movement relative to the U-shaped glass positioned on the glass positioning module. The U-shaped glass can be polished efficiently, comprehensively, and neatly by using the polishing device, thereby improving the product qualification rate. The present invention also relates to a polishing method implemented by using the polishing device.

Description

Technical Field

[0001] The present invention relates to a polishing device and a polishing method, which can polish U-shaped glass. Background Art

[0002] With the progress of industrial level and the improvement of people's living standards, hot-bent glass is used more and more in occasions such as architecture and civil use, and people will put forward higher and higher requirements for hot-bent glass. Hot-bent glass is especially widely used in fields such as smart phones, smart watches, tablet computers, wearable smart products, instrument panels, etc. Hot-bent glass has also developed from 2.5D, 3D to 3.5D, and even has developed to 4D, that is, the whole hot-bent glass is in a U-shaped form.

[0003] Hot-bent glass is usually formed by heating flat glass to soften it and then bending it in a mold. Since mold marks will be formed on the surface of the glass product during hot-bending forming, it is necessary to polish the mold marks on the inner and outer sides of the glass product.

[0004] Figure 1 is a schematic diagram of the traditional polishing principle for 3D glass in the prior art. As can be seen from Figure 1 a large brush disk 1' for polishing, a workpiece disk 2' and a workpiece 3' positioned thereon, that is, the 3D glass to be polished. The 3D glass is polished using the large brush disk 1'. Its outer side polishing usually takes about 20 - 30 minutes, and the inner side polishing takes about 45 - 60 minutes, so it takes a long time. In addition, there are problems of incomplete polishing and poor uniformity at the inner arc edge and its inner corner of the 3D glass. The existing polishing devices and processes can only be used for polishing 2.5D and 3D glass sheets.

[0005] For 4D glass or U-shaped glass, the traditional polishing devices and processes cannot polish its inner side, so problems such as mold marks on the glass surface caused by hot-bending and low surface finish cannot be solved. When the distance between the two plates of the U-shaped glass is small, higher requirements are also imposed on the hair wheel itself, and thus higher requirements are also imposed on the polishing device. For the polishing of U-shaped glass, a new polishing method and polishing device need to be developed, and the polishing device needs to achieve stable rotary polishing and meet higher technical requirements such as forward and reverse rotation and other degrees of freedom of movement. Summary of the Invention

[0006] Therefore, the present invention aims to provide a polishing device and a polishing method, which can polish U-shaped glass.

[0007] According to one aspect of the present invention, there is provided a polishing device configured to polish U-shaped glass, the U-shaped glass including a first plate, a second plate, and a connecting portion located between the first plate and the second plate, the polishing device including:

[0008] A glass positioning module configured to position U-shaped glass;

[0009] At least one wool wheel configured to polish U-shaped glass;

[0010] A first motion module having a first driving module configured to cause the U-shaped glass positioned on the glass positioning module and the at least one wool wheel to perform a relative translational motion along a first direction;

[0011] A second motion module having a second driving module configured to cause the U-shaped glass positioned on the glass positioning module and the at least one wool wheel to perform a relative translational motion along a second direction perpendicular to the first direction;

[0012] A third motion module having a third driving module configured to cause the U-shaped glass positioned on the glass positioning module and the at least one wool wheel to perform a relative translational motion along a third direction perpendicular to the first direction and perpendicular to the second direction; and

[0013] A fourth motion module having a fourth driving module configured to cause the at least one wool wheel to perform a rotational motion relative to the U-shaped glass positioned on the glass positioning module.

[0014] The technical effects that the polishing equipment of the present invention can achieve are, for example: the polishing equipment can perform stable rotational polishing on U-shaped glass, meet higher technical requirements such as forward and reverse rotation and other degrees of freedom of motion, and can polish the entire U-shaped glass efficiently, comprehensively and with reliable functions.

[0015] In some embodiments, the first motion module further includes a polishing box body, and a jig serving as the glass positioning module is fixed in the polishing box body. The first driving module of the first motion module is configured to cause the polishing box body to perform a translational motion relative to the wool wheel along the longitudinal direction of the U-shaped glass perpendicular to the connecting portion as the first direction.

[0016] In some embodiments, the jig has a vacuum pumping port for pumping vacuum inside the jig and a vacuum adsorption groove for adsorbing U-shaped glass.

[0017] In some embodiments, the surface profile of the jig having the vacuum adsorption groove at least partially corresponds to the outer surface profile of the U-shaped glass.

[0018] In some embodiments, the jig can be fixed in the polishing box body in a threaded connection manner or in a clamping manner.

[0019] In some embodiments, the first driving module of the first motion module includes a motor and a first transmission mechanism. The output end of the first transmission mechanism is connected to the polishing box body, and its input end is connected to the motor. Through the first transmission mechanism, the rotational motion of the motor can be converted into the translational motion of the polishing box body along the first direction.

[0020] In some embodiments, the first driving module of the first motion module further includes a housing. The motor is externally disposed in the housing, and the first transmission mechanism is internally disposed in the housing. And the output end of the first transmission mechanism extends out of the housing through a chute on the housing.

[0021] In some embodiments, the first transmission mechanism is a lead screw-nut transmission mechanism or a synchronous belt transmission mechanism or a rack and pinion transmission mechanism.

[0022] In some embodiments, the maximum allowable stroke of the translational motion of the polishing box body relative to the wool wheel along the first direction is not less than the maximum length of the U-shaped glass.

[0023] In some embodiments, the polishing box body has a detachable front cover, and the fixture is replaceable.

[0024] In some embodiments, a polishing liquid inlet for introducing polishing liquid into the polishing box body and a polishing liquid and abrasive powder outlet for leading the polishing liquid and glass abrasive powder out of the polishing box body are provided on the polishing box body.

[0025] In some embodiments, a vacuum pipeline inlet is further provided on the polishing box body. The vacuum pipeline inlet is used to introduce the vacuum pipeline from the outside of the polishing box body into its interior and connect it to the vacuum port of the fixture.

[0026] In some embodiments, the fourth motion module further includes a carrier bracket, and the at least one wool wheel is carried on the carrier bracket.

[0027] In some embodiments, the fourth driving module of the fourth motion module includes a motor assigned to the at least one wool wheel. The motor is also carried on the carrier bracket and is configured to drive the at least one wool wheel to rotate relative to the U-shaped glass.

[0028] In some embodiments, the second motion module further includes a motion plate, and the carrier bracket is fixed on the motion plate.

[0029] In some embodiments, the second driving module of the second motion module includes a motor and a second transmission mechanism. The output end of the second transmission mechanism is connected to the motion plate, and its input end is connected to the motor of the second driving module. Through the second transmission mechanism, the rotational motion of the motor of the second driving module can be converted into the translational motion of the motion plate along the longitudinal direction of the wool wheel as the second direction.

[0030] In some embodiments, the second driving module of the second motion module further includes a housing. The motor of the second driving module is externally disposed in the housing and the second transmission mechanism is internally disposed in the housing, and the output end of the second transmission mechanism extends out of the housing through a chute on the housing.

[0031] In some embodiments, the second transmission mechanism is a lead screw-nut transmission mechanism or a synchronous belt transmission mechanism or a rack and pinion transmission mechanism.

[0032] In some embodiments, the third driving module of the third motion module includes a driver and a third transmission mechanism. The output end of the third transmission mechanism is connected to the second motion module and its input end is connected to a driver capable of outputting a rotational motion. Through the third transmission mechanism, the rotational motion of the driver can be converted into a translational motion of the second motion module along the third direction.

[0033] In some embodiments, the third transmission mechanism is a lead screw-nut transmission mechanism, which includes a lead screw directly or indirectly connected to the driver and a nut directly or indirectly fixed on the second motion module.

[0034] In some embodiments, a slide rail extending along the third direction is further provided on the third motion module. Correspondingly, a sliding cover is provided on the second motion module, and the sliding cover can slide on the slide rail.

[0035] In some embodiments, the driver is a handwheel or a motor.

[0036] In some embodiments, the third driving module of the third motion module includes a cylinder. The input end of the cylinder is connected to the second motion module and can make the second motion module perform a translational motion along the third direction.

[0037] In some embodiments, the polishing device further includes a positioning auxiliary device, which can assist in positioning the suspended part of the U-shaped glass when polishing the suspended part of the U-shaped glass.

[0038] In some embodiments, the connecting part of the U-shaped glass is an arc-shaped connecting part. The first driving module is configured such that the apex of the arc-shaped connecting part and the at least one wool wheel approach each other first and then move away from each other along the first direction, and at the same time the third driving module is configured such that the at least one wool wheel translates from one end of the arc-shaped connecting part to the other end along the third direction, so as to polish the inner side of the arc-shaped connecting part.

[0039] According to another aspect of the present invention, a polishing method is provided. The polishing method is used to polish a U-shaped glass by means of a wool wheel using the polishing device of the present invention. The polishing method includes the steps:

[0040] Position the U-shaped glass on the glass positioning module such that the outer side of the first plate abuts against the glass positioning module;

[0041] Use the one wool wheel to polish the inner side of the U-shaped glass and the outer side of the second plate;

[0042] Flip the U-shaped glass by 180° and position it on the glass positioning module such that the outer side of the second plate abuts against the glass positioning module;

[0043] Use the one wool wheel to polish the outer side of the first plate.

[0044] In some embodiments, the polishing of the inner side of the U-shaped glass includes the polishing of the inner side of the first plate, the inner side of the second plate, and the inner side of the connecting portion.

[0045] In some embodiments, after or before polishing the outer side of the second plate, use the one wool wheel to polish at least a portion of the outer side of the connecting portion.

[0046] In some embodiments, after or before polishing the outer side of the first plate, use the one wool wheel to polish at least a portion of the outer side of the connecting portion.

[0047] In some embodiments, after or before polishing the outer side of the first plate, use the one wool wheel to polish the unpolished portion of the outer side of the connecting portion.

[0048] In some embodiments, while rotating the wool wheel and reciprocatingly moving it in the second direction, translate the U-shaped glass in the first direction to polish the inner and outer sides of the first and second plates.

[0049] In some embodiments, the connecting portion of the U-shaped glass is an arc-shaped connecting portion. While rotating the wool wheel and reciprocatingly moving it in the second direction, translate the U-shaped glass in the first direction and simultaneously translate the one wool wheel in the third direction to polish at least a portion of the outer side of the arc-shaped connecting portion.

[0050] In some embodiments, the connecting portion of the U-shaped glass is an arc-shaped connecting portion. If the diameter of the wool wheel is less than the plate spacing, then while rotating the wool wheel and reciprocatingly moving it in the second direction, move the arc top of the arc-shaped connecting portion and the one wool wheel closer to and then farther away from each other in the first direction, and simultaneously translate the one wool wheel from one end of the arc-shaped connecting portion to the other end in the third direction to polish the inner side of the arc-shaped connecting portion; if the diameter of the wool wheel is equal to the plate spacing, then rotating the wool wheel can polish the inner side of the arc-shaped connecting portion.

[0051] According to another aspect of the present invention, there is provided a polishing method for polishing a U-shaped glass by means of two wool wheels using the polishing apparatus of the present invention. The polishing method includes the steps of:

[0052] Position the U-shaped glass on the glass positioning module such that the outer side of the first plate abuts against the glass positioning module;

[0053] Simultaneously polish the inner and outer sides of the second plate using the two wool wheels;

[0054] Flip the U-shaped glass by 180° and position it on the glass positioning module such that the outer side of the second plate abuts against the glass positioning module;

[0055] Simultaneously polish the inner and outer sides of the first plate using the two wool wheels.

[0056] In some embodiments, after or before polishing the inner and outer sides of the second plate, at least a part of the inner side and at least a part of the outer side of the connecting portion are simultaneously polished using the two wool wheels.

[0057] In some embodiments, after or before polishing the inner and outer sides of the first plate, at least a part of the inner side and at least a part of the outer side of the connecting portion are simultaneously polished using the two wool wheels.

[0058] In some embodiments, after or before polishing the inner and outer sides of the first plate, the unpolished part of the inner side and the unpolished part of the outer side of the connecting portion are simultaneously polished using the two wool wheels.

[0059] In some embodiments, the connecting portion of the U-shaped glass is an arc-shaped connecting portion. While the two wool wheels rotate and reciprocate in the second direction, the U-shaped glass is translated in the first direction, and at the same time, the two wool wheels are translated in the third direction to polish at least a part of the inner side and at least a part of the outer side of the arc-shaped connecting portion.

[0060] In some embodiments, while the wool wheels rotate and reciprocate in the second direction, the U-shaped glass is translated in the first direction to simultaneously polish the inner and outer sides of the first plate and the second plate.

[0061] Those skilled in the art will understand the advantages of the corresponding embodiments and various additional embodiments by referring to the following detailed description of the corresponding embodiments read in conjunction with the accompanying drawings listed below. In addition, the various features of the drawings discussed below are not necessarily drawn to scale. The dimensions of the various features and elements in the drawings may be enlarged or reduced to more clearly illustrate the embodiments of the present invention. Description of the Drawings

[0062] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, where the same reference numerals in the drawings and their descriptions refer to similar or identical elements throughout.

[0063] Figure 1 It is a schematic diagram of the traditional polishing principle for 3D glass in the prior art.

[0064] Figure 2a It is a perspective view of an embodiment of the U-shaped glass of the present invention.

[0065] Figure 2b is Figure 2a a side view of the U-shaped glass in

[0066] Figure 3 It is a schematic diagram of an embodiment of a polishing device for polishing the U-shaped glass of the present invention.

[0067] Figure 4a is Figure 3 a schematic enlarged view of the polishing motion system of the polishing device in

[0068] Figure 4b It is a schematic diagram of a part of the carrier bracket of the polishing device.

[0069] Figure 5a It is a perspective view of the fixture of the embodiment of the present invention together with the U-shaped glass and the wool wheel positioned thereon.

[0070] Figure 5b It is a perspective view of the fixture of the embodiment of the present invention together with the wool wheel.

[0071] Figure 6a It is a schematic diagram of polishing the second plate of the U-shaped glass with two wool wheels, and

[0072] Figure 6b It is a schematic diagram of polishing the first plate of the U-shaped glass with two wool wheels. Detailed Embodiments

[0073] The following describes various illustrative embodiments of the present invention. In this specification, for the sake of explanation only, various systems, structures, and devices are schematically depicted in the drawings, but not all features of the actual systems, structures, and devices are described. For example, well-known functions or structures are not described in detail to avoid obscuring the present invention with unnecessary details. Of course, it should be understood that in any actual application, many specific implementation decisions need to be made to achieve the specific goals of the developer or user, and compliance with system-related and industry-related restrictions is required, and these specific goals may vary with different actual applications. In addition, it should be understood that such specific implementation decisions, although complex and time-consuming, are routine tasks for those of ordinary skill in the art who benefit from this application.

[0074] The terms and phrases used in this document should be understood and interpreted to have meanings consistent with those understood by a person skilled in the relevant art. The consistent use of a term or phrase in this document is not intended to imply a special definition of the term or phrase, that is, a definition different from the ordinary and customary meaning understood by a person skilled in the art. For terms or phrases intended to have a special meaning, that is, a meaning different from that understood by a person skilled in the art, such special definition will be clearly listed in the specification in a definitional manner, directly and unambiguously giving the special definition of the term or phrase.

[0075] Unless the context requires otherwise, throughout the following specification, the word "comprising" and its variants, such as "including", will be interpreted in an open, inclusive sense, that is, as "including but not limited to".

[0076] Throughout the description of this specification, descriptions referring to the terms "one embodiment / implementation", "an embodiment / implementation", "some embodiments / implementations", "example", "specific example", or "some examples", etc., mean that the specific features, structures, materials, or characteristics described in connection with that embodiment / implementation or example are included in at least one embodiment / implementation or example of the present invention. Thus, the phrases "in one embodiment / implementation" or "in an embodiment / implementation" that appear in different places throughout this specification are not necessarily all referring to the same embodiment / implementation. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments / implementations or examples in a suitable manner.

[0077] In addition, the terms "first", "second", etc. are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0078] Figure 2a and Figure 2b are a perspective view and a side view of a U-shaped glass 1 according to an embodiment of the present invention. By Figure 2a and Figure 2bAs can be seen, the U-shaped glass 1 includes a first plate 2, a second plate 3, and a connecting portion 4 located between the first plate 2 and the second plate 3. The first plate 2 and the second plate 3 are straight, and the connecting portion 4 is arc-shaped. In other embodiments, the first plate 2 and the second plate 3 may not be straight, for example, having a certain curvature on both sides; and the connecting portion 4 may also be straight. The first plate 2 is longer than the second plate 3 and is parallel to each other. In other embodiments, the first plate 2 and the second plate 3 may also have the same length and may be angled with respect to each other rather than parallel. The U-shaped glass 1 may further include a bending portion 5 located at the free end of the first plate 2. The above deformation methods may depend on the outer contour of the electronic product.

[0079] When the U-shaped glass 1 is installed on an electronic device such as a mobile phone, the inner surface 7 of the U-shaped glass 1 may face the mobile phone, while the outer surface 6 of the U-shaped glass 1 may face the external environment and be available for user touch operation. Specifically, the first plate 2 of the U-shaped glass 1 can be used to completely cover the front of the mobile phone, the second plate 3 can be used to partially cover the back of the mobile phone, the connecting portion 4 can be used to completely cover one end of the mobile phone, and the bending portion 5 can be used to at least partially cover the opposite end of the mobile phone. In some embodiments, the connecting portion 4 can also be used to completely cover one side of the mobile phone rather than the end.

[0080] Figure 3 It is a schematic diagram of an embodiment of the present invention of a polishing device 8 for polishing the U-shaped glass 1. Next, the main components of the polishing device 8 will be introduced in detail.

[0081] The polishing device 8 may include a frame module a, and the frame module a forms a square frame box 9. The upper surface of the frame box 9 forms a support platform 10. Other motion modules and electrical modules of the polishing device 8 can be supported on the support platform 10. A cavity can be formed inside the frame box 9 for accommodating other components of the polishing device 8 that are not convenient to place outside the frame box 9, thereby reducing the floor area of the polishing device 8 and increasing the aesthetics of the polishing device 8.

[0082] The polishing device 8 may include a polishing liquid pump body b. The polishing liquid pump body b can be arranged in the cavity inside the frame box 9 of the frame module a and is used to provide recyclable polishing liquid. These polishing liquids can be circulated through the polishing liquid pipeline to the U-shaped glass 1 and the wool wheel 11 to cool and lubricate the wool wheel 11 and the U-shaped glass 1, thereby improving the polishing effect of the wool wheel 11 on the U-shaped glass 1.

[0083] The polishing device 8 may include a human-machine control platform c, which facilitates human-machine interaction, and through which the polishing process can be controlled, thereby improving the controllability and automation of the polishing process. The use of this platform c is also conducive to improving the debugging accuracy of the polishing device 8 and the positioning accuracy of the wool wheel 11 relative to the U-shaped glass 1, thereby greatly enhancing the intelligence and practicality of the polishing device 8.

[0084] The polishing device 8 may further include a polishing motion system 12 supported on a support platform 10 of a support module a. Through the polishing motion system 12, complex motion polishing of the U-shaped glass 1 by the wool wheel 11 can be achieved (detailed below). The polishing motion system 12 is shown enlarged in Figure 4a the figure.

[0085] In the embodiments of the present invention, it is stipulated that in the Figure 4a Cartesian coordinate system shown, the x-direction corresponds to the longitudinal direction of the U-shaped glass 1 perpendicular to the connecting portion of the U-shaped glass 1, the y-direction corresponds to the longitudinal direction of the wool wheel 11, and the z-direction corresponds to the vertical direction perpendicular to the x-direction and perpendicular to the y-direction.

[0086] In this embodiment, the polishing motion system 12 of the polishing device 8 may include a first motion module e for translating the U-shaped glass 1 in the x-direction, a second motion module d for translating the wool wheel 11 in the y-direction, a third motion module f for translating the wool wheel 11 in the z-direction, and a fourth motion module for rotating the wool wheel 11 (detailed below).

[0087] The first motion module e may include a polishing box 13, and the polishing box 13 has a detachable front box cover. In Figure 4a the figure, the front box cover of the polishing box 13 is removed, so that the interior of the polishing box 13 can be seen. A polishing liquid inlet 14 for connecting a polishing liquid input pipeline (not shown) of the polishing liquid pump body b may be provided on the top of the polishing box 13 to convey the cooled polishing liquid into the polishing box 13 and apply it to the wool wheel 11 and the U-shaped glass 1 to improve the polishing quality. A polishing liquid and abrasive powder outlet 15 for connecting a polishing liquid output pipeline of the polishing liquid pump body b may be provided on the bottom of the polishing box 13 to lead out the polishing liquid and the glass abrasive powder polished from the U-shaped glass from the polishing box 13 and back to the polishing liquid pump body b. Thus, the recycling of the polishing liquid can be realized. A separation mechanism may be provided in the polishing liquid pump body b, and this separation mechanism is used to separate the abrasive powder conveyed into the pump body from the pump body. In other embodiments, the polishing liquid may also be directly discharged from the polishing box 13 without recycling. The inside of the polishing box 13 is sealed with glass glue to prevent the polishing liquid and glass abrasive powder from leaking to the outside, thereby ensuring the safe and clean operation of the polishing device 8.

[0088] From Figure 4aAlso visible in the figure is a fixture 16 (a type of glass positioning module) fixed to the bottom of the polishing box body 13 and a U-shaped glass 1 positioned on the fixture 16. The fixture 16 and the U-shaped glass 1 are oriented in the x direction within the polishing box body 13 longitudinally. As described above, the front cover of the polishing box body can be opened, which facilitates the replacement of glass products and / or the fixture 16. The replaceable fixture 16 facilitates the positioning of different glass products. It is very advantageous to place the U-shaped glass in the box body for polishing. The polishing box body can reduce the noise pollution during polishing, prevent the polishing liquid from flowing onto other components of the polishing equipment and damaging these components, and prevent the glass abrasive powder from splashing outside and contaminating other components or splashing into the operator's eyes. Thus, it can also keep the whole polishing equipment clean.

[0089] A vacuum pumping pipeline inlet 18 can also be provided on the top of the polishing box body. The vacuum pumping pipeline inlet 18 is used to introduce a vacuum pumping pipeline (not shown) from outside the polishing box body into its interior and connect it to the vacuum pumping port 19 of the fixture 16 for performing a vacuum pumping operation on the fixture 16, thereby vacuum-sucking and positioning the U-shaped glass 1 on the fixture 16 (detailed below).

[0090] The first motion module e can also include a first driving module 20 oriented in the x direction directly or indirectly fixed to the support platform 10 of the frame module a. The first driving module 20 can include a housing 22, a motor 21 disposed outside the housing 22, and a first transmission mechanism (not shown) disposed inside the housing 22. The output end of the first transmission mechanism is fixedly connected to the lower part of the polishing box body 13, and its input end is connected to the motor 21. The output end of the first transmission mechanism extends out of the housing through a chute on the housing and is connected to the polishing box body 13, and the output end can move back and forth along the chute. Through the first transmission mechanism, the rotational motion of the motor 21 can be converted into a translational motion of the polishing box body 13 in the x direction, and by reversing the rotation of the motor 21, the translational direction of the polishing box body 13 can be changed, thereby realizing the reciprocating motion of the polishing module 13 and the fixture 16 and the U-shaped glass 1 positioned therein in the x direction.

[0091] In some embodiments, the first transmission mechanism can be a lead screw-nut transmission mechanism. Therefore, the first transmission mechanism can include a lead screw, a bearing seat for supporting the lead screw, a nut directly or indirectly fixed to the lower part of the polishing box body 13, and other components. In some embodiments, the first transmission mechanism can also be a synchronous belt transmission mechanism. Therefore, the first transmission mechanism can include a synchronous pulley, a synchronous belt, a linear guide rail, a bearing seat, and other components. In some embodiments, the first transmission mechanism can be a gear-rack transmission mechanism. The above are only examples of the first transmission mechanism. In fact, as long as the transmission mechanism can convert the rotational motion of the motor 21 into a translational motion of the polishing box body 13, it can be used as the first transmission mechanism of the embodiment of the present invention.

[0092] The maximum allowable stroke of the polishing box body 13 moving back and forth in the x direction is at least corresponding to the longest length of the U-shaped glass 1, so that the entire length of the U-shaped glass 1 can be polished by moving the polishing box body 13 in the x direction. Thus, the reciprocating movement of the polishing box body 13 together with the fixture 16 fixed therein and the U-shaped glass 1 in the x direction can be achieved by the first motion module e.

[0093] The polishing device 8 may include a second motion module d, and the second motion module d may include a second driving module 23 and a motion plate 26. The second driving module 23 may include a motor 28 and a second transmission mechanism (not shown). The output end of the second transmission mechanism is connected to the motion plate 26 and its input end is connected to the motor 28 of the second driving module 23. Through the second transmission mechanism, the rotational motion of the motor 28 of the second driving module 23 can be converted into the translational motion of the motion plate 26 along the longitudinal direction of the wool wheel.

[0094] Similar to the first transmission mechanism, the second transmission mechanism may also be a lead screw nut transmission mechanism, a synchronous belt transmission mechanism or a rack and pinion transmission mechanism. These transmission mechanisms are only illustrative examples of the second transmission mechanism. In fact, as long as the transmission mechanism that can convert the rotational motion of the motor 28 into the translational motion of the motion plate 26 can be used as the second transmission mechanism of the embodiment of the present invention.

[0095] The polishing device 8 may include a fourth motion module. The fourth motion module may include a wool wheel 11, a carrier bracket 17 and a fourth driving module carried thereon. The fourth driving module may include a motor 24 assigned to the wool wheel, and the motor 24 is configured to drive the wool wheel 11 to rotate relative to the U-shaped glass 1.

[0096] The carrier bracket 17 and the wool wheel 11 may extend into the polishing box body 13 in the y direction, so that the wool wheel 11 crosses the U-shaped glass 1 and is perpendicular to the longitudinal direction of the U-shaped glass 1. Thus, the wool wheel 11 can perform a polishing operation on the U-shaped glass 1.

[0097] A polishing liquid input pipeline, such as a serpentine pipe, may be fixed on the part of the carrier bracket in the polishing box body 13, so that the polishing liquid input pipeline can always spray the polishing liquid on the polishing parts of the wool wheel 11 and the U-shaped glass 1.

[0098] Figure 4b It is a schematic diagram of a part of the carrier bracket 17 of the polishing device 8. From Figure 4b It can be seen how the wool wheel 11 and the motor 24 are carried on the carrier bracket 17 and the relative position of the wool wheel 11 and the U-shaped glass 1.

[0099] The carrier bracket 17 is fixed to the motion plate 26 through a reinforcing rib 25. The motion plate 26 can reciprocate in the y direction through the second motion module 23. Thus, the wool wheel 11 can reciprocate in the y direction.

[0100] It is very beneficial for the polishing that the wool wheel 11 can reciprocate in the transverse direction of the U-shaped glass 1, that is, in the y direction. If the wool wheel 11 does not reciprocate in the y direction, the gaps between the wool bristles of the wool wheel will cause polishing marks on the glass surface during polishing. Therefore, during the polishing process, the horizontal relative movement between the wool wheel 11 and the U-shaped glass 1 should be a cross movement in the x direction and the y direction to make the glass surface smoother.

[0101] In this embodiment, the second motion module d may include only one wool wheel 11. In some embodiments, the second motion module d may include two or more wool wheels, and a motor 24 may be respectively provided for these wool wheels, or a motor 24 may be provided only for one of the wool wheels, and then the rotational motion of the motor 24 is transmitted to other wool wheels through a transmission mechanism, such as a gear transmission mechanism.

[0102] The polishing device 8 may include a third motion module f. The third motion module f is fixed on the support platform 10 and can adjust the vertical height position of the wool wheel 11 to make the wool wheel 11 contact or move away from the first and / or second plates of the U-shaped glass 1. In addition, when polishing the arc connecting portion or the bending portion of the U-shaped glass, the up and down movement of the wool wheel 11 may also be required. The third motion module f has a third driving module, and the third driving module is configured to realize the up and down movement of the wool wheel 11, that is, the movement along the z direction. The third driving module may include a handwheel 29 and a third transmission mechanism. The third transmission mechanism may include a lead screw 30 connected to the handwheel 29 and a nut directly or indirectly fixed on the housing 27 of the second driving module 23. Thus, through the third transmission mechanism, the rotational motion of the handwheel 29 can be converted into the movement of the second driving module 23 and even the entire second motion module d along the z direction, so as to realize the up and down movement of the wool wheel 11.

[0103] In some embodiments, the manual adjustment mechanism including the handwheel 29 may also be replaced by an automatic adjustment mechanism. For example, a motor is used to replace the handwheel 29 to actuate the lead screw nut transmission mechanism, or a cylinder is used to replace the entire lead screw nut transmission mechanism to act on the second motion module d to control its up and down movement. Thus, through the third motion module f, the reciprocating movement of the wool wheel 11 along the z direction can be realized.

[0104] A slide rail 31 extending along the z direction is further provided on the third motion module f. Correspondingly, a sliding cover 32 is provided on the second driving module 23 of the second motion module d. The sliding cover 32 can slide on the slide rail 31 to guide the movement of the second motion module d in the z direction.

[0105] In the embodiment of the present invention, the motor may be a servo motor, so as to better control the speed and the steering.

[0106] Combined with the above description of each motion module of the polishing motion system 12, the relative motion between the wool wheel 11 and the U-shaped glass 1 that can be achieved by the polishing equipment is summarized as follows: The relative motion between the wool wheel 11 and the U-shaped glass 1 in the x direction can be achieved by the first motion module e; the relative motion between the wool wheel 11 and the U-shaped glass 1 in the y direction can be achieved by the second motion module d; the relative motion between the wool wheel 11 and the U-shaped glass 1 in the z direction can be achieved by the third motion module f. The rotational motion of the wool wheel 11 can be achieved by the fourth motion module. The polishing of the U-shaped glass 1 by the wool wheel 11 is achieved through the combination of the above various motions.

[0107] Figure 5a is a perspective view of the fixture 16 of the embodiment of the present invention together with the U-shaped glass 1 and the wool wheel 11 positioned thereon. Figure 5b is a perspective view of the fixture 16 of the embodiment of the present invention together with the wool wheel 11. The fixture 16 has a closed cavity, and a vacuum pumping port 19 leading to the cavity can be provided on the side of the fixture 16. The vacuum pumping pipeline introduced into the polishing box body 13 is connected to the vacuum pumping port 19 to perform a vacuum pumping operation on the cavity of the fixture 16.

[0108] Flanges are provided on both sides of the fixture 16, and threaded holes 33 are provided on the flanges. The fixture 16 can be fixed to the bottom of the polishing box body 13 through these threaded holes 33. In some embodiments, the fixture 16 can also be fixed to the bottom of the polishing box body 13 in other ways, such as by clamping.

[0109] Referring to Figure 5b , the fixture 16 can have a contour on its upper surface that fits the outer contour of the U-shaped glass 1, so that the U-shaped glass 1 can be abutted against the upper surface of the fixture 16. Vacuum adsorption grooves 34 can be provided on the upper surface of the fixture 16. When the cavity of the fixture 16 is evacuated, the U-shaped glass 1 can be vacuum adsorbed on the upper surface of the fixture 16 through the vacuum adsorption grooves 34, so as to realize the reliable positioning and fixing of the U-shaped glass 1 on the fixture 16. In this embodiment, the vacuum adsorption grooves 34 are in the form of a cross. In other embodiments, the vacuum adsorption grooves can also be in other forms such as a square frame as long as the U-shaped glass 1 can be firmly vacuum adsorbed on the upper surface of the fixture 16.

[0110] During polishing, first place the U-shaped glass 1 correctly on the fixture 16, then evacuate the fixture 16 through the vacuum inlet so that the product is completely vacuum adsorbed and positioned on the fixture 16, and then adjust the position of the wool wheel 11 through the touch screen of the human-machine interaction module c for automatic polishing.

[0111] The polishing equipment of the present invention adopts a new vacuum adsorption structure, namely, a fixture 16 designed for U-shaped glass. The use of the fixture 16 can control the vacuum at each station more automatically and precisely. The fixture 16 can be conveniently replaced according to the specifications and dimensions of the glass products to be positioned. A damping cloth (not shown) can be provided between the fixture 16 and the U-shaped glass, thereby better positioning the U-shaped glass 1. The fixture 16 can be made of fiberglass material, thus having good insulation, high temperature resistance, and corrosion resistance.

[0112] Next, in combination with Figure 5a An exemplary embodiment of a polishing method for polishing a U-shaped glass 1 (including two plates, an arc connection part, and a bending part) with a wool wheel 11 by means of the above polishing equipment will be described. This embodiment may include the following steps:

[0113] Position the U-shaped glass 1 on the fixture 16 as Figure 5a shown, with the first plate 2 adsorbed and adhered to the upper surface of the fixture 16, and the second plate 3 above the first plate 2;

[0114] Move the fixture 16 in the x direction and move the wool wheel 11 in the y direction, so as to place the wool wheel 11 against the free end inside the bending part 5 of the U-shaped glass 1. When the wool wheel 11 rotates and reciprocates in the y direction, start polishing the inner side 7 of the U-shaped glass 1;

[0115] Move the fixture 16 uniformly in the x direction so that the wool wheel 11 gradually moves away from the free end of the bending part 5, and at the same time move the wool wheel 11 uniformly downward in the z direction. When the wool wheel 11 reaches the other end of the bending part 5, the polishing of the inner side of the bending part 5 is completed. In some embodiments, the fixture 16 and the wool wheel 11 can be repeatedly moved, so as to polish the inner side of the bending part 5 multiple times;

[0116] Move the fixture 16 uniformly in the x direction so that the wool wheel 11 gradually moves away from the bending part 5. When the wool wheel 11 reaches the end near the connection part 4 on the inner side of the first plate 2, the polishing of the inner side of the first plate 2 is completed. In some embodiments, move the fixture 16 back and forth in the x direction again or more times, so as to polish the inner side of the first plate 2 multiple times;

[0117] Move the fixture 16 uniformly in the x direction so that the wool wheel 11 gradually moves away from the first plate 2, then gradually approaches the second plate 3, and at the same time move the wool wheel 11 uniformly upward in the z direction. When the wool wheel 11 reaches the end near the second plate 3 of the connection part 4, the polishing of the inner side of the connection part 3 is completed. In some embodiments, the fixture 16 and the wool wheel 11 can be repeatedly moved, so as to polish the inner side of the connection part 4 multiple times;

[0118] Move the jig 16 uniformly along the x-direction so that the wool wheel 11 gradually moves away from the connecting part 4. When the wool wheel 11 reaches the end of the inner side of the second plate 3 away from the connecting part 4, the polishing of the inner side of the second plate 3 is completed. In some embodiments, move the jig 16 back and forth along the x-direction again or more times, so as to polish the inner side of the second plate 3 multiple times; thus, the polishing of the inner side 7 of the U-shaped glass 1 is completed.

[0119] Move the wool wheel 11 upward along the z-direction so that the wool wheel 11 is placed against the end of the outer side of the second plate 3 of the U-shaped glass 1 away from the connecting part 4. When the wool wheel 11 rotates and reciprocates along the y-direction, start the polishing of the outer side of the second plate 3 of the U-shaped glass 1;

[0120] Move the jig 16 uniformly along the x-direction so that the wool wheel 11 gradually approaches the connecting part 4. When the wool wheel 11 reaches the end of the outer side of the second plate 3 close to the connecting part 4, the polishing of the outer side of the second plate 3 is completed. In some embodiments, move the jig 16 back and forth along the x-direction again or more times, so as to polish the outer side of the second plate 3 multiple times;

[0121] Move the jig 16 uniformly along the x-direction so that the wool wheel 11 gradually moves away from the second plate 3, and at the same time move the wool wheel 11 uniformly downward along the z-direction. When the wool wheel 11 reaches approximately half of the outer side of the connecting part 4, the polishing of a part of the outer side of the connecting part 3 is completed. In some embodiments, the jig 16 and the wool wheel 11 can be repeatedly moved, so as to polish a part of the outer side of the connecting part 4 multiple times;

[0122] Remove the U-shaped glass 1 from the jig 16, laterally flip the U-shaped glass 1 by 180° and then reposition it on the jig 16 so that the second plate 3 is adsorbed and abutted against the upper surface of the jig 16, and the first plate 2 is above the second plate 3;

[0123] Place the wool wheel 11 against the free end of the outer side of the bending part 5 of the U-shaped glass 1. When the wool wheel 11 rotates and reciprocates along the y-direction, start the polishing of the outer side of the bending part 5 of the U-shaped glass 1;

[0124] Move the jig 16 uniformly along the x-direction so that the wool wheel 11 gradually moves away from the free end of the bending part 5, and at the same time move the wool wheel 11 uniformly upward along the z-direction. When the wool wheel 11 reaches the other end of the bending part 5, the polishing of the outer side of the bending part 5 is completed. In some embodiments, the jig 16 and the wool wheel 11 can be repeatedly moved, so as to polish the outer side of the bending part 5 multiple times;

[0125] Move the jig 16 uniformly along the x-direction so that the wool wheel 11 gradually approaches the connecting part 4 of the U-shaped glass 1. When the wool wheel 11 reaches the connecting part 4, the polishing of the outer side of the first plate 2 of the U-shaped glass 1 is completed. In some embodiments, move the jig 16 back and forth along the x-direction again or more times, so as to polish the outer side of the first plate 2 multiple times;

[0126] Move the jig 16 uniformly in the x direction so that the wool wheel 11 gradually moves away from the first plate 3, and at the same time move the wool wheel 11 uniformly downward in the z direction. When the wool wheel 11 reaches approximately half of the outside of the connecting portion 4, the polishing of the other part of the outside of the connecting portion 3 is completed. In some embodiments, the jig 16 and the wool wheel 11 can be repeatedly moved to polish the other part of the outside of the connecting portion 4 multiple times; thus, the polishing of the entire U-shaped glass 1 is completed.

[0127] The exemplary polishing sequence of the U-shaped glass 1 described above can be summarized as: the inner side of the bending portion 5 → the inner side of the first plate 2 → the inner side of the connecting portion 4 → the inner side of the second plate 3 → the outer side of the second plate 3 → a part of the outer side of the connecting portion 4 → (flip the U-shaped glass) → the outer side of the bending portion 5 → the outer side of the first plate 2 → the other part of the outer side of the connecting portion 4.

[0128] Of course, the above step sequence is only exemplary, and this polishing method is not limited to such a step sequence. Any step sequence that can achieve the complete polishing of the inner and outer sides of the two plates, the connecting portion, and the bending portion of the U-shaped glass 1 is acceptable.

[0129] Of course, the starting point of polishing is not limited to the ends of the first and second plates, the connecting portion, and the bending portion. It is also conceivable to start polishing at a certain position between their ends.

[0130] Of course, if the polishing diameter of the wool wheel 11 corresponds to the spacing between the two plates, then when polishing between the two plates, it is equivalent to polishing the inner sides of the two plates simultaneously, and no movement of the wool wheel in the z direction is required for polishing the inner side of the connecting portion.

[0131] Because it is necessary to polish the outside of the connecting portion 4 of the U-shaped glass 1, the protruding portion 35 that protrudes from the upper surface of the jig 16 and abuts against the connecting portion 4 of the U-shaped glass 1 should not be higher than half of the height of the connecting portion 4, which facilitates the full polishing of the outside of the connecting portion 4.

[0132] The polishing device 8 can include a positioning auxiliary device. The positioning auxiliary device can assist in positioning the suspended portion of the U-shaped glass (i.e., the portion that is not in contact with the jig) during polishing, which can prevent the suspended portion of the glass from being squeezed during polishing, reducing the polishing efficiency or even causing the glass to break. The positioning auxiliary device can be, for example, a spacer that can be inserted between the two plates or a clamping device that can be clamped on the free end of the suspended portion.

[0133] Figure 6a and Figure 6b are schematic diagrams of polishing the second plate 3 and the first plate 2 of the U-shaped glass 1 with two wool wheels 36 and 37. Next, in combination with Figure 6a and Figure 6bExemplarily illustrate an embodiment of a polishing method for polishing a U-shaped glass 1 with two wool wheels 36 and 37 (i.e., a first wool wheel 36 and a second wool wheel 37). This embodiment may include the following steps:

[0134] Position the U-shaped glass 1 on the fixture 16 as Figure 6a shown, with the first plate 2 adsorbed and abutted against the upper surface of the fixture 16, and the second plate 3 above the first plate 2;

[0135] Move the fixture 16 in the x direction and move the first wool wheel 36 and the second wool wheel 37 in the y direction, so as to place the first wool wheel 36 against the end of the inner side of the second plate 3 away from the connecting portion 4, and place the second wool wheel 37 against the end of the outer side of the second plate 3 away from the connecting portion 4, thereby making the second plate 3 located between the first wool wheel 36 and the second wool wheel 37. When the first and second wool wheels 37 rotate at the same linear speed and reciprocate in the y direction, start polishing the inner and outer sides of the first plate 2 simultaneously;

[0136] Move the fixture 16 uniformly in the x direction so that the first and second wool wheels 37 gradually approach the connecting portion 4. When the first and second wool wheels 37 reach the end of the second plate 3 close to the connecting portion 4, complete the polishing of the inner and outer sides of the second plate 3. In some embodiments, move the fixture 16 back and forth in the x direction again or more times, so as to polish the inner and outer sides of the first plate 2 simultaneously for multiple times;

[0137] Move the fixture 16 uniformly in the x direction to gradually move away from the second plate 3, and move the first and second wool wheels 36 and 37 uniformly downward in the z direction. When the second wool wheel 37 reaches approximately half of the outside of the connecting portion 4, complete the polishing of a part of the inner and outer sides of the connecting portion 3. In some embodiments, the movement of the fixture 16 and the wool wheel 11 can be repeated, so as to polish a part of the inner and outer sides of the connecting portion 4 for multiple times;

[0138] Remove the U-shaped glass 1 from the fixture 16, laterally flip the U-shaped glass 1 by 180° and then reposition it on the fixture 16, so that the second plate 3 is adsorbed and abutted against the upper surface of the fixture 16, and the first plate 2 is above the second plate 3;

[0139] Place the first and second wool wheels 36 and 37 against the free ends of the inner and outer sides of the bending portion 5 of the U-shaped glass 1 respectively. When the first and second wool wheels 36 and 37 rotate and reciprocate in the y direction, start polishing the inner and outer sides of the bending portion 5 of the U-shaped glass 1;

[0140] Move the jig 16 uniformly in the x direction so that the first and second wool wheels 36 and 37 gradually move away from the free end of the bent portion 5, and at the same time move the first and second wool wheels 36 and 37 uniformly upward in the z direction. When the first and second wool wheels 36 and 37 reach the other end of the bent portion 5, the polishing of the inner and outer sides of the bent portion 5 is completed. In some embodiments, the jig 16 and the wool wheels can be repeatedly moved to polish the inner and outer sides of the bent portion 5 multiple times;

[0141] Move the jig 16 uniformly in the x direction so that the first and second wool wheels 36 and 37 gradually approach the connecting portion 4. When the first and second wool wheels 36 and 37 reach the end of the first plate 2 near the connecting portion 4, the polishing of the inner and outer sides of the first plate 2 is completed. In some embodiments, the jig 16 is reciprocally moved again or more times in the x direction to polish the inner and outer sides of the first plate 2 simultaneously multiple times.

[0142] Move the jig 16 uniformly in the x direction so that the first and second wool wheels 36 and 37 gradually move away from the first plate 3, and at the same time move the first and second wool wheels 36 and 37 uniformly downward in the z direction. When the first and second wool wheels 36 and 37 reach approximately half of the outside of the connecting portion 4, the polishing of the other part of the outside of the connecting portion 3 is completed. In some embodiments, the jig 16 and the first and second wool wheels 36 and 37 can be repeatedly moved to polish the other part of the outside of the connecting portion 4 multiple times; thus, the polishing of the entire U-shaped glass 1 is completed.

[0143] The above polishing sequence of the U-shaped glass 1 can be summarized as: the inner and outer sides of the second plate 3 → a part of the inner and outer sides of the connecting portion 4 → the inner and outer sides of the bent portion 5 → the inner and outer sides of the first plate 2 → the other part of the inner and outer sides of the connecting portion 4.

[0144] Of course, this step sequence is only exemplary, and the polishing method is not limited to such a step sequence.

[0145] Of course, the starting point of polishing is not limited to the ends of the first and second plates, the connecting portion, and the bent portion. It is also conceivable to start polishing at a certain position between their ends.

[0146] Because it is necessary to polish the outside of the connecting portion 4 of the U-shaped glass 1, the protruding portion 35 protruding from the upper surface of the jig 16 and abutting against the connecting portion 4 of the U-shaped glass 1 should not be higher than half of the height of the connecting portion 4, which facilitates the full polishing of the outside of the connecting portion 4.

[0147] The polishing device 8 can also include a positioning auxiliary device. The positioning auxiliary device can assist in positioning the suspended portion of the U-shaped glass (i.e., the portion not attached to the jig) during polishing, which can prevent the suspended portion of the glass from being squeezed during polishing, reducing the polishing efficiency or even causing the glass to break. The positioning auxiliary device can be, for example, a spacer that can be inserted between the two plates or a clamping device that can be clamped on the free end of the suspended portion.

[0148] The diameter of the first wool wheel 36 is set according to the distance between the two plates of the U-shaped glass 1. The smaller the distance, the smaller the diameter of the first wool wheel 36. The diameter of the second wool wheel 37 can be larger. For example, it can reach more than φ8mm because the diameter of the second wool wheel 37 is not restricted by the plate distance. Therefore, the concentricity of the second wool wheel 37 will also be higher. Although the diameters of the first and second wool wheels 37 can be different, their linear speeds need to be the same during polishing to ensure simultaneous and synchronous polishing of the inner and outer sides of the U-shaped glass 1.

[0149] Compared with polishing the U-shaped glass 1 using a single wool wheel 11, the advantages of polishing it using two wool wheels 36 and 37 are, for example: the inner and outer sides can be polished synchronously and uniformly during processing; the risk of breakage of the U-shaped glass 1 is reduced; the processing time is shortened.

[0150] The present invention may include any feature or combination of features or generalizations thereof that are implicitly or explicitly disclosed herein, and is not limited to any of the limited scopes listed above. Any element, feature, and / or structural arrangement described herein can be combined in any suitable manner.

[0151] The specific embodiments disclosed above are merely exemplary. It is obvious to those skilled in the art who benefit from the teachings herein that the present invention can be modified and implemented in different but equivalent ways. Therefore, it is obvious that the specific embodiments of the above invention can be changed and modified, and all such variations are considered to fall within the scope and spirit of the present invention.

Claims

1. A polishing device configured to polish U-shaped glass, the U-shaped glass including a first plate, a second plate, and a connecting portion located between the first plate and the second plate. Characterized in that the polishing device includes: a glass positioning module configured to position the U-shaped glass; at least one wool wheel configured to polish the U-shaped glass; a first motion module having a first driving module configured to cause the U-shaped glass positioned on the glass positioning module and the at least one wool wheel to perform a relative translational motion along a first direction; a second motion module having a second driving module configured to cause the U-shaped glass positioned on the glass positioning module and the at least one wool wheel to perform a relative translational motion along a second direction perpendicular to the first direction; a third motion module having a third driving module configured to cause the U-shaped glass positioned on the glass positioning module and the at least one wool wheel to perform a relative translational motion along a third direction perpendicular to the first direction and perpendicular to the second direction; and a fourth motion module having a fourth driving module configured to cause the at least one wool wheel to perform a rotational motion relative to the U-shaped glass positioned on the glass positioning module, wherein the first motion module further includes a polishing box body, and a jig serving as the glass positioning module is fixed inside the polishing box body. The first driving module of the first motion module is configured to cause the polishing box body to perform a translational motion relative to the wool wheel along the longitudinal direction of the U-shaped glass perpendicular to the connecting portion as the first direction, wherein the connecting portion of the U-shaped glass is an arc-shaped connecting portion. The first driving module is configured to cause the arc top of the arc-shaped connecting portion and the at least one wool wheel to approach each other first and then move away from each other along the first direction, and at the same time, the third driving module is configured to cause the at least one wool wheel to perform a translational movement from one end of the arc-shaped connecting portion to the other end along the third direction so as to polish the inner side of the arc-shaped connecting portion, and the polishing device further includes a positioning auxiliary device capable of assisting in positioning the suspended portion of the U-shaped glass when polishing the suspended portion of the U-shaped glass.

2. The polishing device according to claim 1, characterized in that the jig has a vacuum pumping port for pumping vacuum inside the jig and a vacuum adsorption groove for adsorbing the U-shaped glass.

3. The polishing device according to claim 2, characterized in that the surface profile of the jig having the vacuum adsorption groove at least partially corresponds to the outer surface profile of the U-shaped glass.

4. The polishing device according to claim 1, characterized in that the jig can be fixed inside the polishing box body in a threaded connection manner or a clamping manner.

5. The polishing device according to claim 1, characterized in that the first driving module of the first motion module includes a motor and a first transmission mechanism. The output end of the first transmission mechanism is connected to the polishing box body and its input end is connected to the motor. Through the first transmission mechanism, the rotational motion of the motor can be converted into the translational motion of the polishing box body along the first direction.

6. The polishing device according to claim 5, characterized in that The first driving module of the first motion module further includes a housing, the motor is disposed outside the housing and the first transmission mechanism is disposed inside the housing, and the output end of the first transmission mechanism extends out of the housing through a sliding groove on the housing.

7. The polishing device according to claim 5 or 6, wherein, the first transmission mechanism is a lead screw and nut transmission mechanism or a synchronous belt transmission mechanism or a rack and pinion transmission mechanism.

8. The polishing device according to claim 1, wherein, the maximum allowable stroke of the polishing box moving translationally relative to the wool wheel in the first direction is not less than the maximum length of the U-shaped glass.

9. The polishing device according to claim 1, wherein, the polishing box has a detachable front cover, and the fixture is replaceable.

10. The polishing device according to claim 1, wherein, a polishing liquid inlet for introducing polishing liquid into the polishing box and a polishing liquid and abrasive powder outlet for leading the polishing liquid and glass abrasive powder out of the polishing box are provided on the polishing box.

11. The polishing device according to claim 2, wherein, a vacuum pumping pipeline inlet is further provided on the polishing box, and the vacuum pumping pipeline inlet is used to introduce the vacuum pumping pipeline from the outside of the polishing box into the inside thereof and connect it to the vacuum pumping port of the fixture.

12. The polishing device according to claim 1, wherein, the fourth motion module further includes a carrying bracket, and the at least one wool wheel is carried on the carrying bracket.

13. The polishing device according to claim 12, wherein, the fourth driving module of the fourth motion module includes a motor assigned to the at least one wool wheel, the motor is also carried on the carrying bracket, and is configured to drive the at least one wool wheel to rotate relative to the U-shaped glass.

14. The polishing device according to claim 12 or 13, wherein, the second motion module further includes a motion plate, and the carrying bracket is fixed on the motion plate.

15. The polishing device according to claim 14, wherein, the second driving module of the second motion module includes a motor and a second transmission mechanism, the output end of the second transmission mechanism is connected to the motion plate and its input end is connected to the motor of the second driving module, and the rotational motion of the motor of the second driving module can be converted into translational motion of the motion plate along the longitudinal direction of the wool wheel as the second direction through the second transmission mechanism.

16. The polishing device according to claim 15, wherein, the second driving module of the second motion module further includes a housing, the motor of the second driving module is disposed outside the housing and the second transmission mechanism is disposed inside the housing, and the output end of the second transmission mechanism extends out of the housing through a sliding groove on the housing.

17. The polishing device according to claim 15 or 16, wherein, the second transmission mechanism is a lead screw and nut transmission mechanism or a synchronous belt transmission mechanism or a rack and pinion transmission mechanism.

18. The polishing device according to claim 15 or 16, wherein, The third driving module of the third motion module includes a driver and a third transmission mechanism. The output end of the third transmission mechanism is connected to the second motion module, and its input end is connected to the driver capable of outputting rotational motion. Through the third transmission mechanism, the rotational motion of the driver can be converted into the translational motion of the second motion module along the third direction.

19. The polishing device according to claim 18, characterized in that the third transmission mechanism is a lead screw-nut transmission mechanism, which includes a lead screw directly or indirectly connected to the driver and a nut directly or indirectly fixed on the second motion module.

20. The polishing device according to claim 18, characterized in that a slide rail extending along the third direction is further provided on the third motion module. Correspondingly, a sliding cover is provided on the second motion module, and the sliding cover can slide on the slide rail.

21. The polishing device according to claim 18, characterized in that the driver is a handwheel or a motor.

22. The polishing device according to claim 15 or 16, characterized in that the third driving module of the third motion module includes a cylinder. The input end of the cylinder is connected to the second motion module and can make the second motion module translate along the third direction.

23. A polishing method, which is used to polish a U-shaped glass by means of a wool wheel by using the polishing device according to any one of claims 1 to 22, characterized in that the polishing method includes the steps of: positioning the U-shaped glass on the glass positioning module so that the outer side of the first plate abuts against the glass positioning module; polishing the inner side of the U-shaped glass and the outer side of the second plate by using the one wool wheel; flipping the U-shaped glass by 180° and positioning it on the glass positioning module so that the outer side of the second plate abuts against the glass positioning module; polishing the outer side of the first plate by using the one wool wheel.

24. The polishing method according to claim 23, characterized in that the polishing of the inner side of the U-shaped glass includes the polishing of the inner side of the first plate, the inner side of the second plate, and the inner side of the connecting portion.

25. The polishing method according to claim 23, characterized in that after or before polishing the outer side of the second plate, at least a part of the outer side of the connecting portion is polished by using the one wool wheel.

26. The polishing method according to claim 23, characterized in that after or before polishing the outer side of the first plate, at least a part of the outer side of the connecting portion is polished by using the one wool wheel.

27. The polishing method according to claim 25, characterized in that after or before polishing the outer side of the first plate, the unpolished part of the outer side of the connecting portion is polished by using the one wool wheel.

28. The polishing method according to claim 24, characterized in that while making the wool wheel rotate and reciprocate along the second direction, the U-shaped glass is translated along the first direction to polish the inner and outer sides of the first plate and the second plate.

29. The polishing method according to claim 25 or 26, characterized in that The connecting part of the U-shaped glass is an arc-shaped connecting part. While rotating the wool wheel and reciprocatingly moving it in the second direction, the U-shaped glass is translated in the first direction, and at the same time, the one wool wheel is translated in the third direction to polish at least a part of the outer side of the arc-shaped connecting part.

30. The polishing method according to claim 24, wherein, the connecting part of the U-shaped glass is an arc-shaped connecting part. If the diameter of the wool wheel is smaller than the plate spacing, then while rotating the wool wheel and reciprocatingly moving it in the second direction, the arc top of the arc-shaped connecting part and the one wool wheel approach each other first and then move away from each other in the first direction, and at the same time, the one wool wheel is translated from one end of the arc-shaped connecting part to the other end in the third direction to polish the inner side of the arc-shaped connecting part; if the diameter of the wool wheel is equal to the plate spacing, then rotating the wool wheel can polish the inner side of the arc-shaped connecting part.

31. A polishing method, which is used to polish the U-shaped glass by means of two wool wheels with the polishing equipment according to any one of claims 1 to 22, wherein, the polishing method includes the steps of: positioning the U-shaped glass on the glass positioning module so that the outer side of the first plate abuts against the glass positioning module; simultaneously polishing the inner side and the outer side of the second plate with the two wool wheels; flipping the U-shaped glass by 180° and positioning it on the glass positioning module so that the outer side of the second plate abuts against the glass positioning module; simultaneously polishing the inner side and the outer side of the first plate with the two wool wheels.

32. The polishing method according to claim 31, wherein, after or before polishing the inner side and the outer side of the second plate, at least a part of the inner side and at least a part of the outer side of the connecting part are simultaneously polished with the two wool wheels.

33. The polishing method according to claim 31, wherein, after or before polishing the inner side and the outer side of the first plate, at least a part of the inner side and at least a part of the outer side of the connecting part are simultaneously polished with the two wool wheels.

34. The polishing method according to claim 32, wherein, after or before polishing the inner side and the outer side of the first plate, the unpolished part of the inner side and the unpolished part of the outer side of the connecting part are simultaneously polished with the two wool wheels.

35. The polishing method according to claim 32 or 33, wherein, the connecting part of the U-shaped glass is an arc-shaped connecting part. While the two wool wheels rotate and reciprocatingly move in the second direction, the U-shaped glass is translated in the first direction, and at the same time, the two wool wheels are translated in the third direction to polish at least a part of the inner side and at least a part of the outer side of the arc-shaped connecting part.

36. The polishing method according to claim 31, wherein, while rotating the wool wheel and reciprocatingly moving it in the second direction, the U-shaped glass is translated in the first direction to simultaneously polish the inner side and the outer side of the first plate and the second plate.

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