Wandering star wheel assembly compatible with double-sided machining of various products

Abstract

The utility model provides a wandering star wheel assembly compatible with double-sided machining of various products, which comprises a wandering star wheel body and a wandering star wheel gear ring, the wandering star wheel body and the wandering star wheel gear ring are designed in a split manner, and a plurality of mounting holes for loading products to be machined are formed in the wandering star wheel body. The wandering star wheel gear ring revolves and rotates around the center shaft under the meshing effect of the rotation speed ratio of the center shaft sun wheel and the inner gear ring, and the wandering star wheel body is installed in the wandering star wheel gear ring and can rotate irregularly in the wandering star wheel gear ring after completing the revolution action along with the gear ring. The wandering star wheel body and the wandering star wheel gear ring are designed in a split mode, the requirement for high flatness of the surface of a product to be machined can be met, machining of products of different boundary dimensions can be met under the same equipment (wandering star wheel tooth shape) specification, the remanufacturing frequency of the wandering star wheel gear ring is reduced, and the machining efficiency is improved. And the frequency of upper and lower disc surfaces of the wandering star wheel assembly is reduced in the machining process, and the risk of introducing other pollutants is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of ultra-precision machining, and in particular relates to a planetary wheel assembly for double-sided machining of compatible multi-type products. Background Art

[0002] As a processing carrier in the flattening process of double-sided grinding and polishing equipment, the planetary wheel is widely used in piezoelectric crystal, optical glass processing, sapphire processing, ceramic processing and other industries. It is an indispensable production consumable in modern industrial production activities. In order to pursue production, most existing manufacturers try to fill the planetary wheel with products as much as possible according to the size of the double-sided equipment disk (that is, the pitch circle size of the planetary wheel) (as shown below). Figure 1a-1g Square, rectangular and circular cavities), which cannot match the ideal grinding and polishing trajectory, resulting in uneven thickness distribution of the product after double-sided processing and poor surface flatness of the product, making it impossible to obtain high-flatness products. Utility Model Content

[0003] The purpose of the utility model is to provide a planetary wheel assembly which can improve the surface flatness of a product and is compatible with double-sided processing of various types of products.

[0004] The utility model is achieved in this way:

[0005] The utility model provides a planetary gear assembly for double-sided processing of compatible multiple types of products, characterized in that the planetary gear assembly is arranged between the upper and lower disk surfaces of a double-sided grinding and polishing device, and meshes between the sun gear and the inner gear ring of the device's center axis. It is characterized in that it includes a planetary gear body and a planetary gear ring, and the planetary gear body and the planetary gear ring are designed as separate bodies. A plurality of mounting holes for loading products to be processed are opened on the planetary gear body, and the product loading holes are square, circular or other shapes; the planetary gear ring revolves and rotates around the center axis under the meshing action of the speed ratio of the center axis sun gear and the inner gear ring, and the planetary gear body is installed in the planetary gear ring, and after the gear ring completes the revolution, it can rotate irregularly in the planetary gear ring.

[0006] Furthermore, a plurality of liquid distribution holes are provided on the planetary wheel body around the periphery of the mounting hole of the product to be processed.

[0007] Furthermore, an arc-shaped notch is provided on the edge of the mounting hole for the product to be processed.

[0008] Furthermore, when the installation hole for the product to be processed is square in shape, the arc-shaped notches are located on both sides or around the square installation hole for the product to be processed.

[0009] Furthermore, when the mounting hole for the product to be processed is circular, the arc-shaped notches are located at opposite sides of the circular mounting hole for the product to be processed.

[0010] Furthermore, when the installation hole for the product to be processed is square in shape, escape holes are provided at the four corners of the square installation hole for the product to be processed.

[0011] Furthermore, the planetary wheel body is made of epoxy resin plate or polytetrafluoroethylene plate material.

[0012] Furthermore, when the mounting holes of the products to be processed are square in shape, the square mounting holes of the products to be processed are arranged circumferentially along the planetary wheel body, with liquid distribution holes in the middle, and liquid distribution holes are arranged between adjacent square mounting holes of the products to be processed; or the square mounting holes of the products to be processed are arranged up and down along the planetary wheel body, and multiple liquid distribution holes are arranged around them.

[0013] Furthermore, when the mounting holes for the products to be processed are circular, the circular mounting holes for the products to be processed are arranged circumferentially along the planetary wheel body, with liquid distribution holes in the middle, and liquid distribution holes are arranged between adjacent circular mounting holes for the products to be processed; or the circular mounting holes for the products to be processed are arranged up and down along the planetary wheel body, with multiple liquid distribution holes arranged around them.

[0014] Furthermore, the size of the escape hole is adapted to the size of the chamfers (R) of the four corners of the square product to be processed.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The utility model adopts the split design of the planetary wheel body and the planetary wheel ring gear, which makes the planetary wheel body revolve around the equipment's central axis in the equipment polishing disk surface, and also makes the planetary wheel rotate on its own under the drive of the central axis teeth and the inner gear ring, and the product to be processed can also rotate freely in the planetary wheel ring gear following the planetary wheel body, thereby realizing the irregular free rotation grinding and polishing of the product to be processed in the working disk surface of the equipment, avoiding a fixed single grinding and polishing trajectory, meeting the high flatness requirement of the surface of the product to be processed, and can be used for double-sided grinding and polishing of high-precision flat products, reducing the thickness of the product The difference in degree can be eliminated, thus avoiding rework of products and improving yield rate and processing efficiency. Moreover, in order to process products with different external dimensions under the same equipment (planetary gear tooth profile), only the planetary gear body needs to be remade, thus avoiding repeated production of the planetary gear ring with the same specification. On the other hand, it is beneficial to the upper and lower material taking during product processing. The planetary gear assembly does not need to be removed from the disk. The product can be taken and placed from the mounting hole of the product to be processed in the planetary gear body, thus reducing the frequency of the planetary gear going up and down, reducing the risk of introducing other pollutants, and reducing the occurrence of defects such as grinding and polishing scratches. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0018] Figures 1a to 1g A schematic diagram of a planetary wheel in the prior art is shown in the background art;

[0019] Figure 2 This is a structural diagram of the planetary gear ring in an embodiment of the present utility model;

[0020] Figure 3 This is a structural diagram of the planetary wheel body in an embodiment of the present invention.

[0021] Figure 4-Figure 6 This is a schematic diagram of the arrangement of mounting holes of different shapes of products to be processed according to an embodiment of the present invention. DETAILED DESCRIPTION

[0022] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of the application is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or element 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 utility model. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0027] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0028] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0029] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0030] Example 1

[0031] This embodiment provides a planetary wheel assembly for double-sided processing of multiple types of products, such as Figures 1a to 1c As shown, the planetary wheel assembly 2 is arranged between the upper and lower disc surfaces of the double-sided grinding and polishing equipment, and is engaged between the sun gear 1 and the inner gear ring 3 of the equipment. Figures 2-3 As shown, it includes: a planetary gear ring 201 and a planetary gear body 202. The planetary gear ring 201 and the planetary gear body 202 are designed as separate bodies. The planetary gear body 202 can rotate relatively in the planetary gear ring 201. A plurality of mounting holes 203 for mounting products to be processed are provided on the planetary gear body 202. The mounting holes 203 for the products to be processed are square, circular or other shapes. Therefore, it is compatible with double-sided processing of multiple types of products, wherein the products to be processed can be quartz substrates. This embodiment is described by taking a square as an example. The planetary gear body 202 can be freely rotatably mounted in the planetary gear ring 201. The planetary gear ring 201 can revolve around the central axis sun gear and can also rotate under the speed ratio engagement of the central axis sun gear 1 and the inner gear ring 2.

[0032] The utility model adopts the split design of the planetary wheel body and the planetary wheel ring gear, which, on the one hand, enables the planetary wheel body to revolve around the central axis of the equipment in the polishing disk surface of the equipment, and also rotates on its own under the speed ratio meshing of the central axis teeth and the inner gear ring, and the product to be processed can also rotate freely in the planetary wheel ring gear along with the planetary wheel body, thereby realizing the irregular free rotation grinding and polishing of the product to be processed in the working disk surface of the equipment, avoiding a fixed single grinding and polishing trajectory, meeting the high flatness requirement of the surface of the product to be processed, and can be used for double-sided grinding and polishing of high-precision products, reducing the thickness difference of the product, avoiding reciprocating rework of the product, and improving the yield and processing efficiency; on the other hand, it is conducive to the upper and lower material removal of the product, and the planetary wheel assembly does not need to be removed from the disk surface, and the product only needs to be taken in and placed from the mounting hole of the product to be processed in the planetary wheel body, reducing the frequency of the planetary wheel going up and down the disk surface, reducing the risk of introducing other pollutants, and reducing the occurrence of defects such as polishing scratches; the planetary wheel body and the planetary wheel ring gear are matched.

[0033] In this embodiment, the planetary wheel body 202 is provided with a mounting hole 203 adapted to the size of the product to be processed, and the planetary wheel body 5 is provided with a plurality of liquid distribution holes 204 on the outer ring surrounding the mounting hole 203 of the product to be processed. The arrangement position of the mounting hole of the square product to be processed is related to the size of its design area. When its size is relatively large, such as Figure 3 As shown, the square product mounting holes are arranged up and down along the planetary wheel body, and multiple liquid distribution holes 204 are arranged around them. The liquid distribution holes 204 are arranged at different intervals to evenly distribute the grinding and polishing liquid from the upper plate liquid distribution pipe to the product surface on the upper and lower plates of the double-sided equipment. The multiple liquid distribution holes 204 are evenly distributed around the outer periphery of the product mounting hole 203; Figure 4 As shown, when its size is relatively small, the square mounting holes for the products to be processed are arranged along the circumference of the planetary wheel body, with a liquid distribution hole in the middle, and distribution holes are arranged between adjacent square mounting holes for the products to be processed, wherein the size of the liquid distribution hole arranged in the middle is larger than the aperture of the liquid distribution holes arranged circumferentially.

[0034] In this embodiment, arc-shaped notches 206 are provided in the middle of the four sides of the mounting hole 203 for the product to be processed, and escape holes 205 are provided at the four corners of the square mounting hole 9 for the product to be processed.

[0035] In this embodiment, the size of the escape hole 205 is adapted to the size of the chamfers (R) of the four corners of the square product to be processed.

[0036] In this embodiment, in order to ensure that the planetary wheel and the outer contour of the processed product are not abnormally bumped or scratched, the planetary wheel body 202 is made of epoxy resin plate or polytetrafluoroethylene plate material.

[0037] Example 2

[0038] The principle and technical solution of this embodiment are basically the same as those of the first embodiment, except that the mounting hole for the product to be processed is a circular hole for mounting the circular product to be processed. It is only necessary to keep the original planetary gear ring unchanged and re-make the planetary gear body adapted to the circular product to be processed, thereby reducing the frequency of gear ring production and saving costs. The arrangement position of the mounting hole 203 for the circular product to be processed is related to the size of its design area. When its size is relatively large, such as Figure 5 As shown, the circular mounting hole for the product to be processed is arranged up and down along the planetary wheel body, and multiple liquid distribution holes 204 are arranged around it. The liquid distribution holes 204 are arranged at different intervals to evenly distribute the grinding and polishing liquid transmitted from the upper plate liquid distribution pipe to the product surface on the upper and lower plates of the double-sided equipment; and the multiple liquid distribution holes 204 are evenly distributed around the outer circumference of the mounting hole 203 for the product to be processed. When its size is relatively small, such as Figure 6 As shown, circular product mounting holes 203 are arranged circumferentially along the planetary wheel body 202, with a central liquid distribution hole. Liquid distribution holes are arranged between adjacent circular product mounting holes. The central liquid distribution holes are larger than the circumferential liquid distribution holes. Furthermore, since product mounting holes 203 are circular, escape holes are not provided.

[0039] The embodiments described above are only some of the embodiments of the present invention, not all of them. The detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

Claims

1. A planetary gear assembly for double-sided processing of multiple types of products, the planetary gear assembly is arranged between the upper and lower discs of a double-sided grinding and polishing device, and is engaged between the sun gear and the inner gear ring of the device's central axis, characterized in that: It includes a planetary gear body and a planetary gear ring. The planetary gear body and the planetary gear ring are designed separately. A plurality of mounting holes for loading products to be processed are opened on the planetary gear body. The product loading holes are square, circular or other shapes. The planetary gear ring revolves and rotates around the central axis under the meshing action of the speed ratio of the central axis sun gear and the inner gear ring. The planetary gear body is installed in the planetary gear ring. As the gear ring completes the revolution, it rotates irregularly in the planetary gear ring.

2. The planetary wheel assembly for double-sided processing of multiple types of products according to claim 1, characterized in that: A plurality of liquid distribution holes of different sizes are opened on the outer circumference of the mounting hole of the product to be processed on the planetary wheel body.

3. A planetary wheel assembly for double-sided processing of multiple types of products according to claim 1 or 2, characterized in that: An arc-shaped notch is provided at the edge of the mounting hole for the product to be processed.

4. The planetary wheel assembly for double-sided processing of multiple types of products according to claim 3, characterized in that: When the mounting hole of the product to be processed is square, the arc-shaped notches are located on both sides or around the square mounting hole.

5. The planetary wheel assembly for double-sided processing of multiple types of products according to claim 3, characterized in that: When the mounting hole of the product to be processed is circular, the arc-shaped notches are located at opposite sides of the circular mounting hole.

6. The planetary wheel assembly for double-sided processing of multiple types of products according to claim 1 or 2, characterized in that: When the installation hole for the product to be processed is square in shape, escape holes are provided at the four corners of the square installation hole for the product to be processed.

7. The planetary wheel assembly for double-sided processing of multiple types of products according to claim 1 or 2, characterized in that: The planetary wheel body is made of epoxy resin plate or polytetrafluoroethylene plate material.

8. The planetary wheel assembly for double-sided processing of multiple types of products according to claim 1 or 2, characterized in that: When the mounting holes for the products to be processed are square in shape, the square mounting holes for the products to be processed are arranged circumferentially along the planetary wheel body, with liquid distribution holes in the middle, and liquid distribution holes are arranged between adjacent square mounting holes for the products to be processed; or the square mounting holes for the products to be processed are arranged up and down along the planetary wheel body, with multiple liquid distribution holes arranged around them.

9. The planetary wheel assembly for double-sided processing of multiple types of products according to claim 1 or 2, characterized in that: When the mounting holes of the products to be processed are circular, the circular mounting holes are arranged along the circumference of the planetary wheel body, with liquid distribution holes in the middle, and liquid distribution holes are arranged between adjacent circular mounting holes of the products to be processed; or the circular product mounting holes are arranged up and down along the planetary wheel body, and multiple liquid distribution holes are arranged around them.

10. The planetary wheel assembly for double-sided processing of multiple types of products according to claim 6, characterized in that: The size of the escape hole is adapted to the size of the four chamfers (R) of the square product to be processed.

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