Surface treatment device for glass parts

Abstract

The utility model discloses a surface treatment device for glass parts. The device comprises a rack, wherein the rack comprises a base; the lifting mechanism comprises a lifting driving part, and the output end of the lifting driving part is connected with the first driving mechanism; the first grinding piece is in transmission connection with the output end of the first driving mechanism; the upper surface of the second grinding piece is a machining platform, and the output end of the second driving mechanism is in transmission connection with the second grinding piece and used for driving the second grinding piece to rotate; the gear mechanism is installed on the machining platform, the gear mechanism comprises an outer gear ring, a center gear arranged in the center of the outer gear ring and a plurality of grinding gears arranged between the outer gear ring and the center gear, the grinding gears are meshed with the inner ring of the outer gear ring and the outer ring of the center gear respectively, and installation grooves used for containing workpieces are formed in the grinding gears. According to the device, the workpiece can be polished more uniformly, and the polishing precision is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of surface treatment equipment, in particular to a surface treatment device for glass parts. Background Art

[0002] Glass parts have been increasingly used in mobile phones and other electronic products in recent years. Usually, the production and processing of glass parts requires many processes such as cutting, grinding, polishing, hardening, cleaning, and silk-screen printing. Grinding and polishing is one of the most important links in the glass production process.

[0003] In the related technologies, although the ultra-precision processing technology of domestic glass parts shows an upward trend, it is still difficult to meet the high quality requirements of the products; the low processing accuracy restricts the overall quality of the products, making it difficult to meet mass production needs and to achieve large-scale ultra-precision processing production. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a surface treatment device for glass parts, which can polish the workpiece more evenly and with higher polishing accuracy.

[0005] The utility model solves the problem through the following technical solutions:

[0006] The present application provides a surface treatment device for glass parts, comprising:

[0007] A frame, the frame comprising a base;

[0008] The lifting mechanism comprises a lifting driving member, wherein the output end of the lifting driving member is connected to the first driving mechanism and is used to drive the first driving mechanism to move up and down;

[0009] A first grinding member is drivingly connected to an output end of the first driving mechanism, and the first driving mechanism is used to drive the first grinding member to rotate;

[0010] A second grinding member and a second driving mechanism, wherein the upper surface of the second grinding member is a processing platform, and the output end of the second driving mechanism is drivingly connected to the second grinding member for driving the second grinding member to rotate;

[0011] A gear mechanism is installed on the processing platform, the gear mechanism comprises an outer gear ring, a central gear arranged at the center of the outer gear ring, and a plurality of grinding gears arranged between the outer gear ring and the central gear, the grinding gears are respectively meshed with the inner ring of the outer gear ring and the outer ring of the central gear, wherein the grinding gears are provided with a mounting groove for placing a workpiece;

[0012] A third driving mechanism and a fourth driving mechanism, wherein the third driving mechanism is transmission-connected to the outer gear ring for driving the outer gear ring to rotate, and the fourth driving mechanism is transmission-connected to the central gear for driving the central gear to rotate.

[0013] Further, the frame is a gantry frame, the frame includes a first supporting column and a second supporting column arranged on the frame, and a mounting beam spanned between the first supporting column and the second supporting column, and the lifting drive member is fixed to the mounting beam;

[0014] The first supporting column is a liftable column, one end of the mounting beam is fixedly connected to the upper end of the liftable column, and the other end of the mounting beam and the second supporting column are movable in the vertical direction.

[0015] Furthermore, the first grinding member, the second grinding member, the outer gear ring, the central gear and the output shaft of the lifting drive member are arranged along the same axis.

[0016] Furthermore, the first grinding member and the second grinding member have the same rotation speed and opposite rotation directions.

[0017] Further, the mounting groove is arranged along the circumference of the grinding gear, and the opening of the mounting groove faces the first grinding member; or,

[0018] The upper surface of the grinding gear is provided with a plurality of recessed portions arranged at intervals along its circumference, and the recessed portions are the mounting grooves.

[0019] Further, the lifting drive member is a cylinder;

[0020] The first driving mechanism, the second driving mechanism, the third driving mechanism and the fourth driving mechanism are motors;

[0021] It also includes a controller, which is electrically connected to the cylinder, the motors of the first drive mechanism, the second drive mechanism, the third drive mechanism and the fourth drive mechanism.

[0022] Furthermore, the polishing rotation speed of the first grinding member and the second grinding member is greater than or equal to 50 r / min.

[0023] Furthermore, the speed ratio between the outer ring gear and the central gear is 3-5.

[0024] Furthermore, the speed ratio of the first grinding member and the second grinding member to the central gear is 4-5.

[0025] Furthermore, the radius ratio of the central gear to the outer gear ring is 0.3-0.4.

[0026] The present application has the following advantages and beneficial effects compared with the prior art:

[0027] In the surface treatment device provided by the present application, the lifting drive member can drive the first drive mechanism to rise or fall, and then drive the first grinding member to rise or fall. After the first grinding member descends, it can contact the workpiece on the second grinding member. The first grinding member, the second grinding member, the external gear ring and the central gear are respectively driven by different drive mechanisms. The lifting drive member can apply the loading pressure during the grinding and polishing process. At the same time, the upper and second grinding members rotate at a certain speed ratio in the direction driven by their respective drive mechanisms, and the external gear ring and the central gear rotate in coordination at different speeds driven by their respective drive mechanisms. The workpiece is placed in the installation groove of the grinding gear, and the outer surface of the workpiece can contact the first and second grinding members, and makes a revolution around the central axis driven by the external gear ring and the central gear, and at the same time generates a rotation under the pressure of the first and second grinding members, and the grinding and polishing of the workpiece are realized during this process. In the solution of the present application, during the actual processing, the workpiece to be processed completes the surface polishing treatment under the different speed combinations of the large central gear and the second grinding member; at the same time, the different speed ratios of the central gear and the external gear ring, and the forward and reverse rotations of the grinding gear further optimize the polishing process. This makes the polishing more uniform and has higher precision, and at the same time can realize mass production. Description of the Drawings

[0028] By describing the exemplary embodiments of the present application in more detail in conjunction with the drawings, the above and other objects, features and advantages of the present application will become more obvious. Among them, in the exemplary embodiments of the present application, the same reference numerals generally represent the same components.

[0029] Figure 1 It is a schematic structural diagram of a surface treatment device for glass parts according to an embodiment of the present application;

[0030] Figure 2 It is a schematic structural diagram of a gear mechanism of a surface treatment device for glass parts according to an embodiment of the present application;

[0031] Figure 3 It is a schematic operation diagram of a surface treatment device for glass parts according to an embodiment of the present application.

[0032] Reference numerals: 10, frame; 80, base; 11, first support column; 12, second support column; 13, installation beam; 14, lifting drive member; 20, first drive mechanism; 30, first grinding member; 40, second grinding member; 50, second drive mechanism; 60, third drive mechanism; 70, fourth drive mechanism; 80, machine base; 41, central gear; 42, external gear ring; 43, grinding gear; 44, workpiece. Detailed Description of the Invention

[0033] The preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0034] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The singular forms of "a", "said" and "the" used in this application and the appended claims are also intended to include plural forms unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0035] The technical solution of the embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0036] Figure 1 It is a structural schematic diagram of a surface treatment device for glass parts; Figure 2 The present invention is a schematic structural diagram of a gear mechanism of a surface treatment device for glass parts.

[0037] See also Figure 1 and Figure 2 The present application provides a surface treatment device for glass parts, comprising:

[0038] The frame 10 includes a base 80;

[0039] The lifting mechanism includes a lifting drive member 14, the output end of which is connected to the first drive mechanism 20, and is used to drive the first drive mechanism 20 to move up and down;

[0040] The first grinding member 30 is transmission-connected to the output end of the first driving mechanism 20, and the first driving mechanism 20 is used to drive the first grinding member 30 to rotate;

[0041] A second grinding member 40 and a second driving mechanism 50, wherein the upper surface of the second grinding member 40 is a processing platform, and the output end of the second driving mechanism 50 is transmission-connected to the second grinding member 40 for driving the second grinding member 40 to rotate;

[0042] The gear mechanism is installed on the processing platform, and the gear mechanism includes an outer gear ring 42, a central gear 41 arranged in the center of the outer gear ring 42, and a plurality of grinding gears 43 arranged between the outer gear ring 42 and the central gear 41. The grinding gears 43 are respectively meshed with the inner ring of the outer gear ring 42 and the outer ring of the central gear 41, wherein the grinding gears 43 are provided with mounting grooves for placing workpieces;

[0043] The third driving mechanism 60 and the fourth driving mechanism 70 , the third driving mechanism 60 is transmission-connected with the outer gear ring 42 for driving the outer gear ring 42 to rotate, and the fourth driving mechanism 70 is transmission-connected with the central gear 41 for driving the central gear 41 to rotate.

[0044] The workpiece 44 of this embodiment may be a sapphire wafer or a glass workpiece.

[0045] See also Figure 3 In the surface treatment device provided by the present application, the lifting drive member can drive the first driving mechanism 20 to rise or fall, thereby causing the first grinding member 30 to rise or fall. After the first grinding member 30 falls, it can contact the workpiece on the second grinding member 40. The first grinding member 30, the second grinding member 40, the outer gear ring 42 and the central gear 41 are driven by different driving mechanisms respectively, and the lifting drive member can realize the application of loading pressure during the grinding and polishing process; at the same time, the upper and second grinding members 40 are driven by their respective driving mechanisms to rotate in a certain speed ratio direction, and the outer gear ring 42 and the central gear 41 are driven by their respective driving mechanisms at different speeds to cooperate and rotate. The workpiece is placed in the mounting groove of the grinding gear 43, and the outer surface of the workpiece can contact the upper and lower polishing plates, and is driven by the outer gear ring 42 and the central gear 41 to make a revolution around the central axis, and at the same time, it produces a rotation motion under the pressure of the upper and lower polishing plates, and the grinding and polishing of the workpiece are realized in this process.

[0046] The solution of the present application is to complete the surface polishing of the workpiece under the cooperation of different rotation speeds of the large central gear 41 and the upper second grinding piece 40 during the actual processing; at the same time, the different speed ratios of the central gear 41 and the outer gear ring 42, and the forward and reverse rotation of the grinding gear 43, thereby optimizing the polishing process. This makes the polishing more uniform and more precise, and can also achieve mass production.

[0047] The frame 10 is a gantry frame, and the frame 10 includes a first supporting column 11 and a second supporting column 12 arranged on a base 80, and a mounting beam 13 spanned between the first supporting column 11 and the second supporting column 12. The first grinding member 30 and the second grinding member 40 can be disc-shaped structures, which are opposed to each other up and down. The first grinding member 30 is suspended from the mounting beam 13, and the second grinding member 40 can be rotatably fixed to the base, for example, it can be rotatably connected to the machine table through a bearing. A chassis is provided under the machine base, and the second drive mechanism 50, the third drive mechanism 60 and the fourth drive mechanism 70 are accommodated and fixed in the chassis. The second drive mechanism 50 is connected to the second grinding member 40 through a first gear assembly, the third drive mechanism 60 is connected to the center gear 41 through a second gear assembly, and the fourth drive mechanism 70 is connected to the outer gear ring 42 through a fourth gear assembly.

[0048] The lifting drive member 14 is fixed to the mounting beam 13; the first support column 11 is a liftable column. One end of the mounting beam 13 is fixedly connected to the upper end of the liftable column, and the other end of the mounting beam 13 is vertically movable relative to the second support column 12. The first support column 11 can be a liftable rotating column, and the rotating column includes a base body and a lifting rod threadedly connected to the base body. One end of the mounting beam 13 is fixedly connected to the upper end of the lifting rod. When the lifting rod is rotated, the mounting beam 13 can be moved up and down. In this application, the support column on one side for lifting is replaced with a rotating column structure. After the support column rises, it can provide more space between the second grinding member 40 and the first grinding member 30, facilitating the replacement operation of the large central gear 41 of the second grinding member 40 and simplifying the processing procedure.

[0049] In this embodiment, the first grinding member 30, the second grinding member 40, the external gear ring 42, the central gear 41, and the output shaft of the lifting drive member are arranged along the same axis. The gantry support system composed of the support column and the mounting beam 13 ensures the stability of the processing platform and ensures that the coaxiality accuracy between the first grinding member 30 and the second grinding member 40 is within 0.02 mm. At the same time, the use of the rotating column facilitates the picking up, placing, and installation of the first grinding member 30, which is convenient for workers to replace the large central gear 41 and the first grinding member 30 during the actual operation process, saving processing time.

[0050] In this embodiment, the lifting drive member 14 is a cylinder; the first drive mechanism 20, the second drive mechanism 50, the third drive mechanism 60, and the fourth drive mechanism 70 are motors; the motors of the first drive mechanism 20 for driving the first grinding member 30 and the second drive mechanism 50 for driving the second grinding member 40 are variable-frequency forward and reverse motors. A controller is further included, and the controller is electrically connected to the cylinder and the motors of the first drive mechanism 20, the second drive mechanism 50, the third drive mechanism 60, and the fourth drive mechanism 70. The controller can control the first grinding member 30 and the second grinding member 40 to rotate at the same speed and in opposite directions, so that the grinding gear 43 rotates and revolves at a certain rate. The operation of the cylinder can be automatically controlled through the hydraulic system, and the force applied to the first grinding member 30 by the cylinder is used to maintain the stability of the grinding process.

[0051] See Figure 2 and Figure 3, in some embodiments, the installation groove is arranged along the circumferential direction of the grinding gear 43, and the opening of the installation groove faces the first grinding member 30; alternatively, a plurality of recesses spaced apart from each other are provided along the circumferential direction of the upper surface of the grinding gear 43, and the recesses are installation grooves. Alternatively, the installation groove can also be in other forms and can be set according to the shape of the workpiece. The through groove of the installation groove can limit the workpiece at a specific position of the grinding gear 43. When the grinding gear 43 rotates around its axis and revolves around the center, the first grinding member 30 and the second grinding member 40 act on both sides of the workpiece 44, and double-sided grinding of the workpiece can be achieved. In addition, since the rotation directions of the first grinding member 30 and the second grinding member 40 are opposite, and the grinding gear 43 can rotate around its axis and revolve around the center, and since the workpiece is placed in the grinding gear 43 system, the movement of the workpiece is affected by the revolution of the grinding gear 43 system around the center gear 41 on the one hand and is related to the rotation of the grinding gear 43 itself on the other hand. Therefore, the movement of the workpiece is a combined movement of its own planetary movement and the rotation movement of the workpiece. The combined movement of rotation and revolution increases the complexity of the trajectory, resulting in more uniform polishing.

[0052] This application adopts four-motor drive and variable-frequency speed regulation; during operation, the first grinding member 30 is driven by the motor of the first driving mechanism 20, and the second grinding member 40 is driven by the motor of the second driving mechanism 50. The first grinding member 30 and the second grinding member 40 operate in reverse with a fixed speed ratio. The rotation of the outer gear ring 42 and the center gear 41 are each driven by a separate motor to drive the grinding gear 43 to perform a planetary motion together.

[0053] In this embodiment, by changing the speeds of the four motors, different grinding trajectories can be obtained on the surface of the workpiece. In some embodiments, as the rotational speeds of the upper and second grinding members 40 increase, the distribution of the grinding trajectories of the workpiece becomes more uniform and the trajectory area increases, the overall movement trajectory tends to be stable, and the grinding uniformity is higher.

[0054] The polishing rotational speeds of the first grinding member 30 and the second grinding member 40 are greater than or equal to 50 r / min. After the polishing rotational speed increases to 50 r / min, the coincidence degree of the movement trajectory curves is low, the trajectory distribution is dense, and the trajectory distribution during the polishing process is uniform.

[0055] In this embodiment, the speed ratio of the outer gear ring 42 to the center gear 41 is 3 - 5. As the speed ratio of the outer gear ring 42 to the center gear 41 continuously increases and approaches 3 - 5 times, the running trajectory tends to be stable while the overall mutation rate becomes smaller and the compactness increases; when the ratio m = 3, the distribution of the simulated trajectory curves is uniform and the grinding accuracy is higher.

[0056] In this embodiment, the rotational speed ratio of the first grinding member 30 and the second grinding member 40 to the central gear 41 is 4-5, and the radius ratio of the central gear 41 to the outer gear ring 42 is 0.3-0.4. When the rotational speed of the upper second grinding member 40 is 5 times that of the central gear 41, the distribution of the trajectory is the most uniform; when the radius ratio of the central gear 41 to the outer gear ring 42 varies within the range of 0.3 to 0.4 times, the trajectory distribution is uniform and the curvature change is small; when the workpiece is far from the rotation center of the grinding gear 43, the trajectory distribution is uniform and dense, the curvature mutation is small, and the grinding accuracy is higher.

[0057] The above embodiments are the preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention shall be equivalent replacement methods and are all included in the protection scope of the present invention.

Claims

1. A surface treatment device for glass parts, characterized in that: include: A frame, the frame comprising a base; The lifting mechanism comprises a lifting driving member, wherein the output end of the lifting driving member is connected to the first driving mechanism and is used to drive the first driving mechanism to move up and down; A first grinding member is drivingly connected to an output end of the first driving mechanism, and the first driving mechanism is used to drive the first grinding member to rotate; A second grinding member and a second driving mechanism, wherein the upper surface of the second grinding member is a processing platform, and the output end of the second driving mechanism is drivingly connected to the second grinding member for driving the second grinding member to rotate; A gear mechanism is installed on the processing platform, the gear mechanism comprises an outer gear ring, a central gear arranged at the center of the outer gear ring, and a plurality of grinding gears arranged between the outer gear ring and the central gear, the grinding gears are respectively meshed with the inner ring of the outer gear ring and the outer ring of the central gear, wherein the grinding gears are provided with a mounting groove for placing a workpiece; A third driving mechanism and a fourth driving mechanism, wherein the third driving mechanism is transmission-connected to the outer gear ring for driving the outer gear ring to rotate, and the fourth driving mechanism is transmission-connected to the central gear for driving the central gear to rotate.

2. The surface treatment device for glass parts according to claim 1, characterized in that: The frame is a gantry frame, and the frame includes a first supporting column and a second supporting column arranged on the frame, and a mounting beam arranged between the first supporting column and the second supporting column, and the lifting drive member is fixed to the mounting beam; The first supporting column is a liftable column, one end of the mounting beam is fixedly connected to the upper end of the liftable column, and the other end of the mounting beam and the second supporting column are movable in the vertical direction.

3. The surface treatment device for glass parts according to claim 1, characterized in that: The first grinding member, the second grinding member, the outer gear ring, the central gear and the output shaft of the lifting drive member are arranged along the same axis.

4. The surface treatment device for glass parts according to claim 1, characterized in that: The first grinding member and the second grinding member have the same rotation speed and opposite rotation directions.

5. The surface treatment device for glass parts according to claim 1, characterized in that: The mounting groove is arranged along the circumference of the grinding gear, and the opening of the mounting groove faces the first grinding member; or, The upper surface of the grinding gear is provided with a plurality of recessed portions arranged at intervals along its circumference, and the recessed portions are the mounting grooves.

6. The surface treatment device for glass parts according to claim 1, characterized in that: The lifting drive member is a cylinder; The first driving mechanism, the second driving mechanism, the third driving mechanism and the fourth driving mechanism are motors; It also includes a controller, which is electrically connected to the cylinder, the motors of the first drive mechanism, the second drive mechanism, the third drive mechanism and the fourth drive mechanism.

7. The surface treatment device for glass parts according to any one of claims 1 to 6, characterized in that: The polishing rotation speed of the first grinding member and the second grinding member is greater than or equal to 50 r / min.

8. The surface treatment device for glass parts according to any one of claims 1 to 6, characterized in that: The speed ratio between the outer ring gear and the central gear is 3-5.

9. The surface treatment device for glass parts according to any one of claims 1 to 6, characterized in that: The speed ratio of the first grinding member and the second grinding member to the central gear is 4-5.

10. The surface treatment device for glass parts according to any one of claims 1 to 6, characterized in that: The radius ratio of the central gear to the outer gear ring is 0.3-0.4.

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