Glass cover plate fixing device for polishing machine and polishing machine

Abstract

The glass cover plate fixing device comprises a polishing table and an adsorption mechanism, the adsorption mechanism comprises a plurality of vacuum suction cups and a driving assembly, and the driving assembly is used for driving the vacuum suction cups to adsorb and fix a glass cover plate; the driving assembly comprises a piston plate and a driving part, a movable cavity and an air pressure cavity are formed in the polishing table at intervals, the piston plate is vertically arranged in the movable cavity in a sliding mode, the side wall of the piston plate abuts against the inner wall of the movable cavity, the movable cavity is divided into an upper cavity and a lower cavity, the upper cavity communicates with the multiple vacuum suction cups, and the lower cavity communicates with the multiple vacuum suction cups. The driving part is arranged in the air pressure cavity and used for driving the driving plate to ascend and descend in the movable cavity, by arranging the polishing table, the multiple vacuum suction cups and the driving assembly, the mounting stability of the glass cover plate is improved, the phenomenon that polishing is uneven when the glass cover plate is polished is avoided, and the polishing quality of the glass cover plate is improved. Therefore, the polishing quality and the polishing efficiency of the glass cover plate are improved, and meanwhile, the polishing table is prevented from being abraded.

Description

Technical Field

[0001] The utility model relates to the technical field of glass cover plate polishing, in particular to a glass cover plate fixing device for a polishing machine and a polishing machine. Background Art

[0002] For display terminals such as mobile phones and tablet computers, the glass cover plates thereon have high quality requirements. They should not only have no sharp corners, burrs, etc., but also have good smoothness and flatness. Therefore, in the processing of glass cover plates, the polishing process is an essential process and is also a very important process for the quality and appearance of glass cover plates.

[0003] The Chinese utility model patent with the application number CN202222974786.X discloses a glass cover plate polishing device, including a base. Four corners of the lower end of the base are fixedly connected with support seats. Four lower ends of the support seats are fixedly connected with moving wheels. Fixing mechanisms are arranged on the upper walls of the four support seats. A first motor is fixedly installed in the middle of the lower end of the base. The output end of the first motor is fixedly connected with a rotating seat. An annular sliding groove is opened in the middle of the upper end of the base. A support is fixedly connected to the common front left part and the front right part of the upper end of the base. Dust removal devices are arranged on the left part and the right part of the upper end of the support. Two placing mechanisms are fixedly connected to the left part and the right part of the upper end of the rotating seat.

[0004] Although the above glass cover plate polishing device can automatically clamp and fix the glass cover plate, since the side end of the glass cover plate is clamped, when polishing the edge of the glass cover plate, the fixing plate and the clamping plate of the placing mechanism will also be involved in the processing, which is prone to wear and reduces the service life. If the polishing fixture is replaced, it will increase the processing cost of the cover glass and also hinder the polishing of the edge of the glass cover plate, resulting in uneven polishing and reducing the surface polishing quality. Summary of the Utility Model

[0005] Aiming at the deficiencies in the prior art, the utility model provides a glass cover plate fixing device for a polishing machine and a polishing machine to solve the technical problems in the related art that although the current glass cover plate polishing device can automatically clamp and fix the glass cover plate, since the side end of the glass cover plate is clamped, when polishing the edge of the glass cover plate, the fixing plate and the clamping plate of the placing mechanism will also be involved in the processing, which is prone to wear and reduces the service life. If the polishing fixture is replaced, it will increase the processing cost of the cover glass and also hinder the polishing of the edge of the glass cover plate, resulting in uneven polishing and reducing the surface polishing quality.

[0006] The present utility model provides a glass cover plate fixing device for a polishing machine, including a polishing table and an adsorption mechanism arranged on the polishing table and used for fixing the glass cover plate on the polishing table. The adsorption mechanism includes a plurality of vacuum suction cups and a driving component used for driving the plurality of vacuum suction cups to adsorb and fix the glass cover plate.

[0007] The driving component includes a piston plate and a driving part. An activity cavity and a pneumatic cavity are arranged at intervals in the polishing table. The piston plate is vertically slidably arranged in the activity cavity, and the side wall abuts against the inner wall of the activity cavity, and divides the activity cavity into an upper chamber and a lower chamber. The upper chamber is communicated with the plurality of vacuum suction cups. The driving part is arranged in the pneumatic cavity and is used for driving the piston plate to lift in the activity cavity.

[0008] Further, the driving part includes a driving plate, a driving rod and a pneumatic driving part. The driving plate is vertically slidably arranged in the pneumatic cavity, and the side wall abuts against the inner wall of the pneumatic cavity, and divides the pneumatic cavity into an acting cavity and a retracting cavity. The driving rod is vertically slidably connected to the polishing table, and both ends are respectively fixedly connected to the piston plate and the driving plate. The pneumatic driving part is used for ventilating or pumping air into the acting cavity to drive the driving plate to lift in the pneumatic cavity.

[0009] Further, sealing strips are arranged on one side where the piston plate is slidably connected to the inner wall of the activity cavity, one side where the driving plate is slidably connected to the inner wall of the pneumatic cavity, and one side where the polishing table abuts against the driving rod.

[0010] Further, a plurality of reset springs are arranged in the acting cavity. Both ends of the plurality of reset springs are respectively fixedly connected to the top wall of the acting cavity and the top wall of the driving plate.

[0011] Further, the pneumatic driving part includes a top column, a pressing plate and an air bag. A driving cavity is arranged in the polishing table. The top column is vertically slidably arranged in the driving cavity, one end is connected to the pressing plate, and the other end extends to the top end of the polishing table. One end of the air bag is connected to the pressing plate, and the other end is communicated with the acting cavity.

[0012] Further, a compression spring is arranged in the driving cavity. Both ends of the compression spring are respectively connected to the bottom wall of the pressing plate and the bottom wall of the driving cavity.

[0013] Further, the polishing table has a groove for accommodating the glass cover plate, and the plurality of vacuum suction cups are all arranged in the groove.

[0014] Further, the polishing table also has a pick-up slot communicated with the groove.

[0015] The present utility model also provides a polishing machine, including the above-mentioned glass cover plate fixing device for a polishing machine, a workbench and a polishing mechanism arranged on the workbench and used for polishing the glass cover plate. The glass cover plate fixing device is arranged on the workbench.

[0016] Further, the polishing mechanism includes a frame disposed on the workbench, a lifting assembly disposed on the mechanism, and a polishing assembly disposed on the lifting assembly. The polishing assembly includes a mounting frame disposed on the lifting assembly, a polishing component disposed on the mounting frame, and an abutting member disposed on the mounting frame. The abutting member is lifted and lowered under the action of the lifting assembly to drive the ejector pin to lift and lower in the driving cavity.

[0017] Compared with the prior art, the present utility model has the following beneficial effects:

[0018] The glass cover fixing device for a polishing machine of the present utility model, by providing a polishing table, a plurality of vacuum suction cups and a driving assembly, the adsorption mechanism is disposed on the polishing table for fixing the glass cover to facilitate subsequent polishing treatment; and the driving assembly is used to drive the plurality of vacuum suction cups to adsorb and fix the glass cover, thereby improving the installation stability of the glass cover, avoiding the phenomenon of uneven polishing when polishing the glass cover, thereby improving the polishing quality and polishing efficiency of the glass cover, and also avoiding the wear of the polishing table. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of a glass cover fixing device for a polishing machine according to an embodiment of the present utility model;

[0020] Figure 2 is a schematic cross-sectional structural diagram of a glass cover fixing device for a polishing machine according to an embodiment of the present utility model;

[0021] Figure 3 is a schematic structural diagram of a polishing machine according to an embodiment of the present utility model;

[0022] Explanation of the reference numerals in the drawings:

[0023] 1. Polishing table; 110. Groove; 120. Pick-up slot; 130. Activity cavity; 131. Upper chamber; 132. Lower chamber; 140. Air pressure cavity; 141. Acting cavity; 142. Retracting cavity; 150. Driving cavity;

[0024] 2. Vacuum suction cup; 3. Piston plate; 4. Driving plate; 5. Driving rod;

[0025] 6. Pneumatic driving member; 61. Ejector pin; 62. Pressure plate; 63. Airbag;

[0026] 7. Sealing strip; 8. Return spring; 9. Compression spring; 10. Workbench; 11. Frame; 12. Lifting assembly;

[0027] 13. Polishing assembly; 131. Mounting frame; 132. Polishing component; 133. Abutting member.

[0028] The realization of the purpose, functional features and advantages of the present utility model will be further described in conjunction with embodiments with reference to the accompanying drawings. Detailed implementation manners

[0029] In order to make the purpose, technical solutions and beneficial effects of the present utility model more clear and understandable, the technical solutions in the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0030] In the description of the present utility model, it should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limited conditions for the implementation of the present utility model. Therefore, they do not have technical substance significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope that the technical content disclosed by the present utility model can cover. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of clear narration, and are not used to limit the scope for the implementation of the present utility model. The change or adjustment of their relative relationships, without substantial change of the technical content, should also be regarded as the scope that the present utility model can implement.

[0031] Embodiment 1

[0032] As Figure 1-2 shown, the embodiment of the present utility model provides a glass cover fixing device for a polishing machine, including a polishing table 1 and an adsorption mechanism. The adsorption mechanism is arranged on the polishing table 1 and is used to fix the glass cover to facilitate subsequent polishing treatment; the fixing mechanism includes a plurality of vacuum suction cups 2 and a driving component. The driving component is used to drive the plurality of vacuum suction cups 2 to adsorb and fix the glass cover, thereby improving the installation stability of the glass cover, avoiding the phenomenon of uneven polishing of the glass cover during polishing, thereby improving the polishing quality and polishing efficiency of the glass cover, and at the same time avoiding the wear of the polishing table 1.

[0033] Specifically, as Figure 1-2 shown, in the embodiment of the present utility model, the driving component includes a piston plate 3 and a driving part. The polishing table 1 is provided with an activity cavity 130 and a pneumatic cavity 140 at intervals. The piston plate 3 is vertically slidably arranged in the activity cavity 130 and the side wall abuts against the inner wall of the activity cavity 130, and divides the activity cavity 130 into an upper chamber 131 and a lower chamber 132. The upper chamber 131 is communicated with a plurality of vacuum suction cups 2, and the driving part is arranged in the pneumatic cavity 140 and is used to drive the piston plate 3 to lift in the activity cavity 130.

[0034] During specific use, first drive the piston plate 3 to move to the top of the movable cavity 130 through the driving component. Then, place the glass cover plate to be polished on the vacuum suction cup 2, and then drive the piston plate 3 to move downward in the movable cavity 130 through the driving component, so as to realize the adsorption of the glass cover plate by the vacuum suction cup 2 and fix it on the polishing table 1. After the polishing is completed, drive the piston plate 3 to move upward in the movable cavity 130 again. The glass cover plate is detached from the vacuum suction cup 2 and can be taken out from the polishing table 1, which is very convenient.

[0035] Based on the above solution, as Figure 1-2 shown, in the embodiment of the present invention, a plurality of the vacuum suction cups 2 are linearly and arrayedly distributed on the polishing table 1 to increase the adsorption area with the glass cover plate, and can improve the adsorption effect on each part of the glass cover plate while ensuring the adsorption pressure, thereby improving the fixing effect on the glass cover plate to be polished.

[0036] Specifically, as Figure 2 shown, in the embodiment of the present invention, the driving component includes a driving plate 4, a driving rod 5 and a pneumatic driving part 6. The driving plate 4 is vertically slidably arranged in the air pressure cavity 140 and its side wall abuts against the inner wall of the air pressure cavity 140, and divides the air pressure cavity 140 into an acting cavity 141 and a retracting cavity 142. The driving rod 5 is vertically slidably connected to the polishing table 1 and its two ends are respectively fixedly connected to the piston plate 3 and the driving plate 4. The pneumatic driving part 6 is used for ventilating or pumping air into the acting cavity 141 to drive the driving plate 4 to lift in the air pressure cavity 140. Two driving components can be arranged to jointly drive a piston plate 3, so that the piston plate 3 is evenly stressed during the movement process, reducing skew and jitter, improving the stability of movement, and further improving the vacuum adsorption effect of the vacuum suction cup 2.

[0037] During specific use, increase the air pressure inside the acting cavity 141 through the pneumatic driving part 6, and then push the driving plate 4 to move towards the retracting cavity 142. At the same time, the driving plate 4 drives the piston plate 3 to move downward in the movable cavity 130 through the driving rod 5. At this time, a low-pressure area is formed in the upper chamber 131, and the glass cover plate is adsorbed and fixed through the vacuum suction cup 2.

[0038] Based on the above solution, as Figure 2 shown, in the embodiment of the present invention, sealing strips 7 are provided on one side where the piston plate 3 is slidably connected to the inner wall of the movable cavity 130, one side where the driving plate 4 is slidably connected to the inner wall of the air pressure cavity 140, and one side where the polishing table 1 abuts against the driving plate 4 to ensure the sealing effect of the acting cavity 141 and the retracting cavity 142 and prevent gas leakage.

[0039] Based on the above solution, as Figure 2As shown in the figure, in the embodiment of the present utility model, a plurality of reset springs 8 are arranged in the acting cavity 141. Both ends of the plurality of reset springs 8 are fixedly connected to the top wall of the acting cavity 141 and the top wall of the driving plate 4 respectively. Through the elastic action of the reset springs 8, the driving plate 4 moves upward in the air pressure cavity 140, and the piston plate 3 is synchronously driven by the driving rod 5 to move downward in the moving cavity 130. At this time, the upper chamber 131 returns to the normal pressure state again, facilitating the removal of the glass cover plate.

[0040] Specifically, as Figure 2 shown in the figure, in the embodiment of the present utility model, the pneumatic driving member 6 includes a top column 61, a pressing plate 62 and an airbag 63. A driving cavity 150 is arranged in the polishing table 1. The top column 61 is vertically slidably arranged in the driving cavity 150, one end is connected to the pressing plate 62, and the other end extends to the top of the polishing table 1. One end of the airbag 63 is connected to the pressing plate 62, and the other end communicates with the acting cavity 141; wherein, two top columns 61 can be symmetrically arranged on the pressing plate 62 to facilitate the pressing of the airbag 63 by the pressing plate 62.

[0041] During specific use, by pressing down the top column 61, the top column 61 drives the pressing plate 62 to press the airbag 63. After the airbag 63 is pressed, the gas inside it enters the acting cavity 141, increasing the air pressure inside the acting cavity 141 to facilitate the lifting and lowering of the driving rod 5 in the air pressure cavity 140.

[0042] Based on the above scheme, as Figure 2 shown in the figure, in the embodiment of the present utility model, a compression spring 9 is arranged in the driving cavity 150. Both ends of the compression spring 9 are respectively connected to the bottom wall of the pressing plate 62 and the bottom wall of the driving cavity 150. Through the elastic force of the compression spring 9, the pressing plate 62 is driven to move upward and reset, so that the gas in the airbag 63 returns to the airbag 63 again for the next use.

[0043] Based on the above scheme, as Figure 1-2 shown in the figure, in the embodiment of the present utility model, the polishing table 1 has a groove 110 for accommodating the glass cover plate. A plurality of vacuum suction cups 2 are arranged in the groove 110. The shape of the groove 110 can be adapted to the shape of the glass cover plate to be polished or larger than the size of the glass cover plate to be polished, so that it can be located at the center of the polishing table 1.

[0044] Based on the above scheme, as Figure 1 shown in the figure, in the embodiment of the present utility model, the polishing table 1 further has a pick-up slot 120 connected to the groove 110. The pick-up slot 120 facilitates the placement and removal of the glass cover plate by personnel, improving the installation and disassembly efficiency of personnel and thus improving the processing efficiency.

[0045] Embodiment 2

[0046] AsFigure 3 As shown in the figure, the embodiment of the present utility model provides a polishing machine, which includes the glass cover fixing device for the polishing machine in the above-mentioned Embodiment 1, a workbench 10, and a polishing mechanism arranged on the workbench 10 and used for polishing the glass cover. The glass cover fixing device is arranged on the workbench 10. The specific structure of the glass cover fixing device refers to the above-mentioned embodiment. Since this polishing machine adopts all the technical solutions of the above-mentioned embodiment, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiment, which will not be elaborated here one by one.

[0047] Specifically, as Figure 3 shown in the figure, in the embodiment of the present utility model, the polishing mechanism includes a frame 11 arranged on the workbench 10, a lifting component 12 arranged on the mechanism, and a polishing component 13 arranged on the lifting component 12. The polishing component 13 includes a mounting frame 131 arranged on the lifting component 12, a polishing part 132 arranged on the mounting frame 131, and an abutting part 133 arranged on the mounting frame 131. The abutting part 133 rises and falls under the action of the lifting component 12 to abut against or separate from the ejector pin 61, so that the ejector pin 61 rises and falls in the driving cavity 150. At the same time, in order to improve the flexibility of polishing, in another embodiment, the polishing mechanism may further include a transverse movement component to realize transverse movement for comprehensive polishing of the glass cover; both the lifting component 12 and the transverse movement component can adopt conventional linear driving mechanisms in the prior art, such as air cylinders, oil cylinders or electric cylinders, etc., so as to be able to drive the polishing component 13 to slide in the longitudinal direction or the transverse direction. The above-mentioned polishing part 132 is a conventional device in the art. Since the present utility model does not make any improvements to it, the specific structure and working mode will not be elaborated here.

[0048] During specific use, first, under the elastic action of the return spring 8 and the compression spring 9, the piston plate 3 moves to the top of the movable cavity 130. Then, after placing the glass cover to be polished on the vacuum chuck 2 in the groove 110, the lifting component 12 drives the abutting part 133 to abut against the ejector pin 61, and the ejector pin 61 drives the pressing plate 62 to squeeze the airbag 63. After the airbag 63 is squeezed, the gas inside it enters the action cavity 141, increasing the air pressure inside the action cavity 141 and pushing the driving plate 4 to move towards the retracting cavity 142. At the same time, the driving plate 4 drives the piston plate 3 to move downward in the movable cavity 130 through the driving rod 5. At this time, a low-pressure area is formed in the upper chamber 131, and the glass cover is fixed on the polishing table 1 through the vacuum chuck 2. Subsequently, the glass cover can be comprehensively polished by the cooperation of the polishing part 132 and the transverse movement component. After the polishing is completed, the lifting component 12 is used to separate the abutting part 133 from the ejector pin 61. At this time, under the elastic action of the return spring 8 and the compression spring 9, the gas in the airbag 63 returns to the airbag 63 again, and the glass cover is detached from the vacuum chuck 2, and then it can be taken out from the polishing table 1.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A glass cover fixing device for a polishing machine, characterized in that: It comprises a polishing table (1) and an adsorption mechanism arranged on the polishing table (1) and used to fix a glass cover plate on the polishing table (1), wherein the adsorption mechanism comprises a plurality of vacuum suction cups (2) and a driving component used to drive the plurality of vacuum suction cups (2) to adsorb and fix the glass cover plate; The driving assembly comprises a piston plate (3) and a driving component. A movable chamber (130) and a pneumatic chamber (140) are arranged in the polishing table (1). The piston plate (3) is vertically slidably arranged in the movable chamber (130) and its side wall abuts against the inner wall of the movable chamber (130), and divides the movable chamber (130) into an upper chamber (131) and a lower chamber (132). The upper chamber (131) is connected to a plurality of vacuum suction cups (2). The driving component is arranged in the pneumatic chamber (140) and is used to drive the piston plate (3) to rise and fall in the movable chamber (130).

2. A glass cover fixing device for a polishing machine and a polishing machine as claimed in claim 1, characterized in that: The driving component comprises a driving plate (4), a driving rod (5) and a pneumatic driving member (6); the driving plate (4) is vertically slidably arranged in the air pressure chamber (140) and its side wall abuts against the inner wall of the air pressure chamber (140), and divides the air pressure chamber (140) into an action chamber (141) and a retreat chamber (142); the driving rod (5) is vertically slidably connected to the polishing table (1) and its two ends are respectively fixedly connected to the piston plate (3) and the driving plate (4); the pneumatic driving member (6) is used to ventilate or exhaust air toward the action chamber (141) to drive the driving plate (4) to rise and fall in the air pressure chamber (140).

3. A glass cover fixing device for a polishing machine as claimed in claim 2, characterized in that: The piston plate (3) is slidably connected to one side of the inner wall of the movable chamber (130), the drive plate (4) is slidably connected to one side of the inner wall of the air pressure chamber (140), and the polishing table (1) is abutted against the drive rod (5) and are all provided with sealing strips (7).

4. A glass cover fixing device for a polishing machine as claimed in claim 2 or 3, characterized in that: A plurality of return springs (8) are arranged in the action chamber (141), and both ends of the plurality of return springs (8) are respectively fixedly connected to the top wall of the action chamber (141) and the top wall of the driving plate (4).

5. A glass cover fixing device for a polishing machine as claimed in claim 2, characterized in that: The pneumatic drive member (6) comprises a top column (61), a pressure plate (62) and an air bag (63); a drive chamber (150) is arranged in the polishing table (1); the top column (61) is vertically slidably arranged in the drive chamber (150) and one end of the top column is connected to the pressure plate (62) and the other end extends to the top of the polishing table (1); one end of the air bag (63) is connected to the pressure plate (62) and the other end is connected to the action chamber (141).

6. A glass cover fixing device for a polishing machine as claimed in claim 5, characterized in that: A compression spring (9) is arranged in the driving chamber (150), and two ends of the compression spring (9) are respectively connected to the bottom wall of the pressure plate (62) and the bottom wall of the driving chamber (150).

7. A glass cover fixing device for a polishing machine as claimed in claim 1, characterized in that: The polishing table (1) has a groove (110) for accommodating a glass cover plate, and the plurality of vacuum suction cups (2) are all arranged in the groove (110).

8. A glass cover fixing device for a polishing machine as claimed in claim 7, characterized in that: The polishing table (1) also has a piece removal groove (120) which is connected to the groove (110).

9. A polishing machine, characterized in that: It comprises a glass cover plate fixing device for a polishing machine as described in any one of items 5 to 8 above, a workbench (10), and a polishing mechanism arranged on the workbench (10) and used for polishing the glass cover plate, wherein the glass cover plate fixing device is arranged on the workbench (10).

10. The polishing machine according to claim 9, characterized in that The polishing mechanism comprises a frame (11) arranged on a workbench (10), a lifting assembly (12) arranged on the mechanism, and a polishing assembly (13) arranged on the lifting assembly (12); the polishing assembly (13) comprises a mounting frame (131) arranged on the lifting assembly (12), a polishing component (132) arranged on the mounting frame (131), and an abutment member (133) arranged on the mounting frame (131); the abutment member (133) is lifted and lowered under the action of the lifting assembly (12) to drive the top column (61) to lift and lower in the driving cavity (150).

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