Glass polishing mechanical arm assembly and polishing device

Abstract

The utility model provides a glass polishing mechanical arm assembly and a polishing device.The glass polishing mechanical arm assembly comprises a base structure; the transmission structure is arranged on the base structure; the polishing structure comprises a brush belt, a first driving part and a plurality of rollers, the rollers are rotatably connected with the transmission structure, the brush belt is in a closed ring shape and surrounds the circumferential outer sides of the rollers, and the output end of the first driving part is connected with one or more of the rollers. According to the technical scheme, the problem that in the prior art, the polishing strength of the bent position is not uniform, and consequently local defects of a product are caused is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of glass polishing equipment, in particular to a glass polishing mechanical arm assembly and a polishing device. Background Art

[0002] When processing cover glass, one of the more important steps is polishing.

[0003] Currently, in some existing technologies, the cover plate industry mostly uses flat polishing for full-surface polishing, which is suitable for 3D cover plates with smaller curvatures. For those with larger curvatures, curved polishing can be used for contour polishing. However, because the curved polishing is controlled by a cylinder for contour polishing, for products with larger curved slopes, the polishing force is uneven at the bends, resulting in localized defects. Furthermore, when polishing the middle of the product, excessive pressure can cause product breakage. For example, application number 201510310113.6 is titled "A Condenser Polishing Machine." Utility Model Content

[0004] A technical problem to be solved by the present invention is that the polishing force at the bend is uneven, resulting in local defects in the product.

[0005] In order to solve the above technical problems, an embodiment of the present application provides a glass polishing robot arm assembly, including: a base structure; a transmission structure, the transmission structure is arranged on the base structure; a polishing structure, the polishing structure includes a brush belt, a first drive unit and multiple rollers, the multiple rollers are rotatably connected to the transmission structure, the brush belt is a closed ring, the brush belt is arranged around the circumferential outside of the multiple rollers, and the output end of the first drive unit is connected to one or more of the rollers.

[0006] In some embodiments, the transmission structure includes multiple threaded rods and multiple cylinders, each threaded rod is threadedly engaged with the base structure so that each threaded rod can move along the axial direction of the threaded rod on the base structure, the first end of each cylinder is rotatably connected to the roller, and the first end of each threaded rod is connected one-to-one with the second end of each cylinder.

[0007] In some embodiments, the cylinder includes a cylinder body and a piston rod, the cylinder body is connected to the threaded rod, and the piston rod is rotatably connected to the roller.

[0008] In some embodiments, the transmission structure also includes a plane bearing and a binding ring, the first end of the threaded rod is connected to the upper surface of the plane bearing, the second end of the cylinder body is connected to the lower surface of the plane bearing, and the binding ring is clamped on the circumferential outer side of the plane bearing.

[0009] In some embodiments, the restraining snap ring is annular and compatible with the plane bearing. The restraining snap ring includes a first clamping plate, a second clamping plate, a third clamping plate, a first convex edge and a second convex edge. In the cross section of the restraining snap ring, the first clamping plate, the second clamping plate and the third clamping plate form a groove. The first convex edge and the second convex edge are respectively located on the inner walls of the groove opening and extend toward each other. The lower surface of the plane bearing has a first annular groove that is compatible with the first convex edge, and the upper surface of the plane bearing has a second annular groove that is compatible with the second convex edge. The first convex edge is partially located in the first annular groove, and the second convex edge is partially located in the second annular groove.

[0010] In some embodiments, the base structure includes a plate body and a plurality of nuts, each nut is disposed on the plate body, and each threaded rod is matched with each nut in a one-to-one correspondence.

[0011] In some embodiments, the plate body is provided with multiple long holes, and multiple nuts are provided in one-to-one correspondence with the multiple long holes and can move axially along each long hole. Limiting parts that cooperate with the plate body are provided on both sides of the nut to limit the axial movement of the nut.

[0012] In some embodiments, the outer walls of both ends of the nut are provided with protrusions, and the protrusions at both ends of the nut are respectively located on both sides of the plate body. In the axial projection along the nut, the protrusions overlap with the plate body, and the outer diameter of the nut is smaller than the inner diameter of the long hole.

[0013] According to another aspect of the present application, a polishing device is also provided, which includes a polishing body, a glass polishing robot arm assembly and a control assembly. The glass polishing robot arm assembly and the control assembly are both arranged on the polishing body. The glass polishing robot arm assembly is electrically connected to the control assembly. The glass polishing robot arm assembly is the above-mentioned glass polishing robot arm assembly.

[0014] In some embodiments, the polishing device further comprises a crank-connecting rod assembly, which is disposed on the polishing body, and an output end of the crank-connecting rod assembly is rotatably connected to the glass polishing mechanical arm assembly.

[0015] The above technical solution, by providing multiple rollers with brush belts positioned circumferentially outside the rollers, can achieve large-area polishing, making it less likely to cause local defects in the cover glass due to uneven force applied during local polishing, especially at bends. The technical solution of this application effectively solves the problem of uneven polishing force at bends in the prior art, which leads to local defects in the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 A schematic diagram of the three-dimensional structure of a glass polishing robot arm assembly according to the first embodiment of the present application is shown;

[0018] Figure 2 Shown Figure 1 A schematic diagram of a front view of a glass polishing robot arm assembly;

[0019] Figure 3 Shown Figure 1 Schematic diagram of the matching of the plane bearing and the restraining clamp of the glass polishing robot arm assembly;

[0020] Figure 4 Shown Figure 1 Schematic diagram of the plate body of the base structure of the glass polishing robot arm assembly.

[0021] Description of reference numerals:

[0022] 10. Base structure; 20. Transmission structure; 21. Threaded rod; 22. Cylinder; 23. Plane bearing; 24. Binding clamp; 30. Grinding structure; 31. Brush belt; 32. Roller. DETAILED DESCRIPTION

[0023] The following detailed description of the embodiments of the present application is provided in conjunction with the accompanying drawings and examples. The detailed description of the following examples and the accompanying drawings are intended to illustrate the principles of the present application, but are not intended to limit the scope of the present application. The present application may be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but rather includes all technical solutions within the scope of the claims.

[0024] The present application provides these embodiments to make this application thorough and complete, and to fully express the scope of this application to those skilled in the art. It should be noted that: unless otherwise specifically stated, the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values ​​set forth in these embodiments should be interpreted as merely exemplary, and not as limiting.

[0025] It should be noted that, in the description of this application, unless otherwise specified, "plurality" means greater than or equal to two; the terms "upper," "lower," "left," "right," "inner," "outer," and the like, indicating directions or positional relationships, are intended solely to facilitate the description of this application and simplify the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0026] In addition, the terms "first," "second," and similar terms used in this application do not denote any order, quantity, or importance, but are simply used to distinguish different parts. "Perpendicular" does not mean perpendicular in the strict sense, but rather means within the tolerance range. "Parallel" does not mean parallel in the strict sense, but rather means within the tolerance range. "Include" or "comprising" and similar terms mean that the elements preceding the word include the elements listed after the word, and do not exclude the possibility of other elements being included.

[0027] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections or indirect connections through an intermediary. A person of ordinary skill in the art will understand the specific meanings of the above terms in this application depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intervening device between the specific device and the first or second device.

[0028] All terms used in this application have the same meaning as understood by one of ordinary skill in the art to which this application belongs, unless otherwise specifically defined. It should also be understood that terms defined in, for example, common dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology and should not be interpreted in an idealized or highly formal sense, unless explicitly defined as such herein.

[0029] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0030] like Figures 1 to 4As shown, the first embodiment shows a glass polishing robot arm assembly, comprising: a base structure 10, a transmission structure 20, and a polishing structure 30. The transmission structure 20 is disposed on the base structure 10. The polishing structure 30 includes a brush belt 31, a first drive unit, and a plurality of rollers 32. The plurality of rollers 32 are rotatably connected to the transmission structure 20. The brush belt 31 is a closed ring and is disposed circumferentially around the plurality of rollers 32. The output end of the first drive unit is connected to one or more of the rollers 32.

[0031] The above technical solution, by providing multiple rollers 32 with brush belts 31 positioned circumferentially outside the rollers 32, allows for large-area polishing, making it less likely to cause local defects in the cover glass due to uneven force applied during local polishing, particularly at bends. The technical solution of this embodiment effectively solves the problem of uneven polishing force at bends in the prior art, which can lead to local defects in the product.

[0032] It should be noted that the brush belt 31 is replaceable, and different brushes can be used according to different products, such as a dermabrasion brush, a rubber brush, a pig hair brush, or other mixed brushes. The length of the brush can be designed and used according to the curvature of the product. The first driving part is a driving motor, and the output shaft of the driving motor is connected to the roller 32 by bolts.

[0033] like Figure 2 As shown, in the technical solution of Example 1, the transmission structure 20 includes a plurality of threaded rods 21 and a plurality of cylinders 22. Each threaded rod 21 is threadedly engaged with the base structure 10 so that each threaded rod 21 can move axially on the base structure 10. The first end of each cylinder 22 is rotatably connected to the roller 32, and the first end of each threaded rod 21 is connected to the second end of each cylinder 22 in a one-to-one correspondence. Adjustment is performed through the structure of the threaded rod 21, and this adjustment method is relatively stable and has high precision. It should be noted that the first end and the second end of the threaded rod 21 are respectively located on either side of the base structure 10.

[0034] like Figure 1 and Figure 2 As shown, in the technical solution of Example 1, the cylinder 22 includes a cylinder body and a piston rod. The cylinder body is connected to the threaded rod 21, and the piston rod is rotatably connected to the roller 32. The cylinder 22 includes a cylinder body, a piston, and a piston rod. The piston is movably located within the cylinder body. The first end of the piston rod is connected to the piston, and the second end of the piston rod is connected to the outer shell of the bearing. The rotating shaft of the roller and the inner shell of the bearing have an interference fit. Because this embodiment uses the cylinder 22, the cylinder 22 not only functions to adjust the axial distance, but also is not a rigid connection, providing a certain cushioning effect, which makes it less likely to cause the cover glass to break.

[0035] like Figures 1 to 3As shown, in the technical solution of Example 1, the transmission structure 20 also includes a plane bearing 23 and a restraining ring 24. The first end of the threaded rod 21 is connected to the upper surface of the plane bearing 23, and the second end of the cylinder body is connected to the lower surface of the plane bearing 23. The restraining ring 24 is clamped on the circumferential outside of the plane bearing 23. The rotation of the threaded rod 21 does not affect the cylinder 22. That is, the threaded rod 21 can adjust its axial position by rotation without the cylinder 22 rotating. While the plane bearing 23 cannot withstand large axial tension, the matching structure of the restraining ring 24 and the plane bearing 23 enables the plane bearing 23 to withstand large axial tension.

[0036] like Figure 3 As shown, in the technical solution of embodiment 1, the restraining snap ring 24 is annular and compatible with the plane bearing 23. The restraining snap ring 24 includes a first clamping plate, a second clamping plate, a third clamping plate, a first ridge, and a second ridge. In the cross section of the restraining snap ring 24, the first clamping plate, the second clamping plate, and the third clamping plate form a groove. The first ridge and the second ridge are respectively located on the inner wall of the groove opening and extend toward each other. The lower surface of the plane bearing 23 has a first annular groove compatible with the first ridge, and the upper surface of the plane bearing 23 has a second annular groove compatible with the second ridge. The first ridge is partially located in the first annular groove, and the second ridge is partially located in the second annular groove. The above structure, the cooperation between the first ridge and the first annular groove, and the cooperation between the second ridge and the second annular groove prevent radial movement between the plane bearing 23 and the restraining snap ring 24.

[0037] like Figure 1 and Figure 2 As shown, in the technical solution of Example 1, the base structure 10 includes a plate and multiple nuts, each of which is mounted on the plate. Each threaded rod 21 is matched to a nut in a one-to-one correspondence. This structure is compact and easy to operate. During operation, by turning the nut, the nut and the threaded rod 21 rotate relative to each other, while the nut is constrained by the plate, thus achieving axial movement of the threaded rod 21.

[0038] like Figure 4 As shown, in the technical solution of embodiment 1, the plate body is provided with a plurality of long holes, and a plurality of nuts are provided in a one-to-one correspondence with the plurality of long holes, and can move along the axial direction of each long hole. Limiting parts that cooperate with the plate body are provided on both sides of the nuts to limit the axial movement of the nuts. The setting of the long holes can realize the adjustment of the distance between the rollers 32 along the axial plane (also referred to as the plane of the plate body) perpendicular to the threaded rod 21. The above structure expands the scope of application of the glass polishing robot arm assembly, that is, the curvature of the brush belt changes as the threaded rod 21 is adjusted along the axial direction. It should be noted that there are three rollers 32, one on each side and one in the middle. One roller 32 corresponds to two threaded rods 21, that is, to two cylinders 22, such as Figure 1 and Figure 2As shown. A distance sensor is provided on the threaded rod 21, or a distance sensor is provided on the roller 32. In this way, when the roller 32 is moved, problems such as collisions between the rollers 32 can be avoided.

[0039] In the technical solution of Example 1, the outer walls of both ends of the nut are provided with protrusions. The protrusions at both ends of the nut are located on either side of the plate body. When projected along the axial direction of the nut, the protrusions overlap with the plate body, and the outer diameter of the nut is smaller than the inner diameter of the elongated hole. This structure is compact and easy to operate. The protrusions at both ends of the nut can limit the position of the nut and the plate body along the axial direction of the nut. The protrusion on the upper side of the nut has a force-applying portion, which makes the nut easier to operate. The protrusion on the upper side of the nut can be polygonal to form a force-applying portion, which can be turned with a wrench during operation. After the nut is moved into place, the nut and the plate body can be fixed together by a latch. For example, the end face of the nut protrusion has a through hole, and the plate body is provided with multiple through holes, which are spaced apart along the axial direction of the elongated hole. The multiple through holes correspond to the through holes on the end face of the nut protrusion. After the nut is moved into place, the latch is inserted into the two through holes to achieve the positioning of the nut and the plate body.

[0040] The technical solution of Example 2 differs from that of Example 1 in that the threaded rod 21 and cylinder 22 are connected via the plate of base structure 10. The threaded rod 21 and the plate are rotatably connected via threaded holes. The cylinder is connected to the plate, which has a long hole. The cylinder is connected to the plate via the base of the nut structure (not requiring internal threads) of Example 1, which will not be described here.

[0041] The technical solution of Example 2, by providing multiple rollers 32 with brush belts 31 positioned circumferentially outside the rollers 32, allows for large-area polishing, making it less likely to cause local defects in the cover glass due to uneven force applied during local polishing, particularly at bends. This technical solution effectively solves the problem of uneven polishing force at bends in the prior art, which can lead to local defects in the product.

[0042] According to another aspect of the present application, a polishing device is also provided, which includes a polishing body, a glass polishing robot arm assembly and a control assembly. The glass polishing robot arm assembly and the control assembly are both arranged on the polishing body. The glass polishing robot arm assembly is electrically connected to the control assembly. The glass polishing robot arm assembly is the above-mentioned glass polishing robot arm assembly.

[0043] In the present application (not shown in the figures), the polishing device further includes a crank-connecting rod assembly, which is disposed on the polishing body, and the output end of the crank-connecting rod assembly is rotatably connected to the glass polishing robot arm assembly. The crank-connecting rod assembly includes a second drive unit, an eccentric wheel, and a connecting rod. The second drive unit is a drive motor, and the output shaft of the second drive unit is rotatably connected to the central axis of the eccentric wheel. The first end of the connecting rod is rotatably connected to the eccentric shaft of the eccentric wheel, and the second end of the connecting rod is rotatably connected to the base structure 10.

[0044] So far, the various embodiments of the present application have been described in detail. To avoid obscuring the concept of the present application, some details well known in the art have not been described. Based on the above description, those skilled in the art can fully understand how to implement the technical solutions disclosed herein.

[0045] Although some specific embodiments of the present application have been described in detail through examples, those skilled in the art will understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present application. Those skilled in the art will understand that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present application. In particular, as long as there are no structural conflicts, the various technical features mentioned in the various embodiments may be combined in any manner.

Claims

1. A glass polishing robot arm assembly, characterized in that: include: Base structure (10); a transmission structure (20), wherein the transmission structure (20) is arranged on the base structure (10); A grinding structure (30) includes a brush belt (31), a first driving unit and a plurality of rollers (32), wherein the plurality of rollers (32) are rotatably connected to the transmission structure (20), the brush belt (31) is a closed ring, and the brush belt (31) is arranged around the circumferential outside of the plurality of rollers (32), and the output end of the first driving unit is connected to one or more of the rollers (32).

2. The glass polishing robot arm assembly according to claim 1, characterized in that: The transmission structure (20) includes a plurality of threaded rods (21) and a plurality of cylinders (22). Each of the threaded rods (21) is threadably engaged with the base structure (10) so that each of the threaded rods (21) moves along the axial direction of the threaded rod (21) on the base structure (10). The first end of each of the cylinders (22) is rotatably connected to the roller (32), and the first end of each of the threaded rods (21) is connected to the second end of each of the cylinders (22) in a one-to-one correspondence.

3. The glass polishing robot arm assembly according to claim 2, characterized in that: The cylinder (22) comprises a cylinder body and a piston rod, wherein the cylinder body is connected to the threaded rod (21), and the piston rod is rotatably connected to the roller (32).

4. The glass polishing robot arm assembly according to claim 3, characterized in that: The transmission structure (20) further comprises a plane bearing (23) and a restraining snap ring (24); the first end of the threaded rod (21) is connected to the upper surface of the plane bearing (23); the second end of the cylinder body is connected to the lower surface of the plane bearing (23); and the restraining snap ring (24) is clamped on the circumferential outer side of the plane bearing (23).

5. The glass polishing robot arm assembly according to claim 4, characterized in that: The binding snap ring (24) is annular and matched with the plane bearing (23). The binding snap ring (24) includes a first clamping plate, a second clamping plate, a third clamping plate, a first convex edge and a second convex edge. In the cross section of the binding snap ring (24), the first clamping plate, the second clamping plate and the third clamping plate form a groove. The first convex edge and the second convex edge are respectively located on the inner wall of the groove opening and extend toward each other. The lower surface of the plane bearing (23) has a first annular groove matched with the first convex edge. The upper surface of the plane bearing (23) has a second annular groove matched with the second convex edge. The first convex edge portion is located in the first annular groove, and the second convex edge portion is located in the second annular groove.

6. The glass polishing robot arm assembly according to claim 2, characterized in that: The base structure (10) comprises a plate body and a plurality of nuts, each of the nuts being arranged on the plate body, and each of the threaded rods (21) being matched with each of the nuts in a one-to-one correspondence.

7. The glass polishing robot arm assembly according to claim 6, characterized in that: The plate body is provided with a plurality of long holes, and the plurality of nuts are provided in one-to-one correspondence with the plurality of long holes and can move axially along the long holes. Limiting parts cooperating with the plate body are provided on both sides of the nut to limit the axial movement of the nut.

8. The glass polishing robot arm assembly according to claim 7, characterized in that: The outer walls of both ends of the nut are provided with protrusions, and the protrusions at both ends of the nut are respectively located on both sides of the plate body. In the axial projection along the nut, the protrusions overlap with the plate body, and the outer diameter of the nut is smaller than the inner diameter of the long hole.

9. A polishing device, characterized in that: The polishing device includes a polishing body, a glass polishing mechanical arm assembly and a control assembly. The glass polishing mechanical arm assembly and the control assembly are both arranged on the polishing body. The glass polishing mechanical arm assembly is electrically connected to the control assembly. The glass polishing mechanical arm assembly is the glass polishing mechanical arm assembly according to any one of claims 1 to 8.

10. The polishing device according to claim 9, characterized in that The polishing device further comprises a crank-connecting rod assembly, which is arranged on the polishing body, and the output end of the crank-connecting rod assembly is rotatably connected to the glass polishing mechanical arm assembly.

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