Auxiliary jig structure for renovating and repairing CVD (Chemical Vapor Deposition) product

Abstract

The invention relates to the technical field of CVD (chemical vapor deposition) product processing, and discloses an auxiliary jig structure for renovating and repairing a CVD product, which comprises a bearing table, a plurality of first telescopic pieces, a positioning assembly, a second telescopic piece, a third telescopic piece, a size adjusting assembly and a hinging assembly, the bearing table is used for bearing the product, and the first telescopic pieces are uniformly distributed on the peripheral side of the upper part of the bearing table; a plurality of second telescopic pieces are evenly distributed on the peripheral side of the lower portion of the bearing table, a mounting plate is mounted at the telescopic ends of the second telescopic pieces on the same side, and the third telescopic pieces are mounted on the mounting plate. The size adjusting assembly is installed at the telescopic end of the third telescopic piece, and the hinge assembly is installed on the size adjusting assembly. When the grinding head of the grinding machine is used for grinding the edge of a product, the edge of the CVD product cannot incline, the edge of the CVD product is prevented from being wetted, the glossiness of the edge of the CVD product can meet the use requirement, and the quality is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of CVD product processing, and particularly relates to an auxiliary jig structure for refurbishing and repairing CVD products. Background Art

[0002] When refurbishing and repairing CVD products, it is necessary to perform mirror surface grinding on their surfaces to make the glossiness of their surfaces meet the usage requirements. Therefore, the grinding machine needs to grind each position on the surface of the CVD product a sufficient number of times. However, during the grinding process, when the grinding head of the grinding machine grinds the edge of the CVD product, part of the surface of the grinding head will be suspended. The suspended part may cause the grinding head to tilt, resulting in the edge of the CVD product being lubricated, causing the glossiness of the edge of the CVD product not to meet the usage requirements, reducing the quality of the CVD product. Moreover, when positioning the CVD product, it can only be targeted at CVD products of the same specification size. Different specification sizes of CVD products require corresponding different positioning devices, which increases costs and occupies a large amount of space.

[0003] Therefore, the applicant has developed an auxiliary jig structure for refurbishing and repairing CVD products to solve the above problems. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide an auxiliary jig structure for refurbishing and repairing CVD products.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions: An auxiliary jig structure for refurbishing and repairing CVD products, comprising: A carrier table for carrying products; A first telescopic member, and a plurality of first telescopic members are evenly distributed on the periphery of the upper part of the carrier table; A positioning component, which is installed on the telescopic ends of the first telescopic members on the same side and is used for positioning and supporting the bottom corners of the product; A second telescopic member, and a plurality of second telescopic members are evenly distributed on the periphery of the lower part of the carrier table. An installation plate is installed on the telescopic ends of the second telescopic members on the same side; A third telescopic member, which is installed on the installation plate; A size adjustment component, which is installed on the telescopic end of the third telescopic member and is used for adjusting according to the edge size of the surface to be ground of the product; A hinge component, which is installed on the size adjustment component and is used for assisting in positioning the moving position of the size adjustment component.

[0006] Further, the positioning component includes a positioning plate installed on the telescopic end of the first telescopic member. On one side of the upper part of the positioning plate facing the bearing table, there is an abutting concave surface for positioning and supporting the bottom corner of the product.

[0007] Further, the size adjustment component includes a mounting frame installed on the telescopic end of the third telescopic member. Connecting columns are symmetrically installed inside the mounting frame. A fixed plate is installed at the middle position of the connecting columns. Movable plates are symmetrically and slidably installed on both sides of the connecting columns. One end of the fixed plate and the movable plates extends out of the mounting frame and can cooperate with the edge area of the surface to be polished of the product. At the bottom of one end of the fixed plate and the movable plates away from the bearing table, there is a hinge component for assisting in positioning the moving positions between the fixed plate and the movable plates.

[0008] Further, the size adjustment component further includes a rotating shaft rotatably installed inside the mounting frame. One end of the rotating shaft penetrates the mounting frame and is connected to the output end of the motor. There is a threaded area on one side of the rotating shaft, and the threaded area is threadedly connected to one of the movable plates. The rotating shaft is slidably matched with the other movable plate, and the rotating shaft is rotatably matched with the fixed plate.

[0009] Further, the hinge component includes a long hinge rod hinged to the bottom of the fixed plate. Short hinge rods are respectively hinged to the bottoms of the two movable plates. The ends of the short hinge rods and the ends of the long hinge rod are hinged to each other.

[0010] Further, at the bottom of one end of the fixed plate and the movable plates close to the bearing table, there are movable grooves. Tightening plates are slidably arranged inside the movable grooves. A plurality of telescopic rods are installed between the top of the inside of the movable grooves and the tightening plates. A spring sleeved on the outer surface of the telescopic rods is connected between the top of the inside of the movable grooves and the tightening plates.

[0011] Further, the moving range between the fixed plate and the movable plates is 0 - 8 cm.

[0012] Further, there are four groups of size adjustment components, which are distributed around the bearing table.

[0013] Further, on one side where the movable plates of two relatively groups are close to each other, there are connecting elbow plates installed. The connection part between the connecting elbow plates and the movable plates forms a corner part, and the corner part can cooperate with the corner position of the edge area of the product.

[0014] Further, during polishing, the surface to be polished of the product is 1 - 2 mm higher than the top surfaces of the fixed plate and the movable plates.

[0015] Compared with the prior art, the present invention provides an auxiliary fixture structure for CVD product refurbishment and repair, and has the following beneficial effects: 1. First, the positioning component of the present invention adjusts according to the size of CVD products of different specifications. After adjustment, the product is placed on the carrier table, and the four sides of the product are positioned and supported by the positioning component. Then, the size adjustment component adjusts according to the edge size of the surface to be polished of the product, and the articulated component assists in positioning the moving position of the size adjustment component. When the adjustment is completed, the size adjustment component is joined together by the second telescopic member, and then it descends through the third telescopic member to protect the edge area of the surface to be polished of the product, so that when the grinding head of the grinding machine grinds the edge of the product, it will not tilt, avoiding the edge lubrication of the CVD product, enabling the glossiness of the edge of the CVD product to meet the usage requirements, and improving the quality of the CVD product; 2. By setting the positioning component that can adjust according to the size of CVD products of different specifications, the present invention reduces costs, reduces the occupied space, and improves the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the top view structural schematic diagram of the present invention; Figure 2 is the top view structural schematic diagram of the present invention after removing the product; Figure 3 is the front view sectional structural schematic diagram of the present invention; Figure 4 is the front view structural schematic diagram of the present invention; Figure 5 is Figure 2 the enlarged structural schematic diagram at A in Figure 6 is Figure 3 the enlarged structural schematic diagram at B in

[0017] Markings in the figure: 1, carrier table; 2, first telescopic member; 3, positioning component; 31, positioning plate; 32, abutting concave surface; 4, second telescopic member; 5, mounting plate; 6, third telescopic member; 7, size adjustment component; 71, mounting frame; 72, rotating shaft; 73, threaded area; 74, connecting column; 75, fixing plate; 76, movable plate; 77, motor; 8, articulated component; 81, long articulated rod; 82, short articulated rod; 9, movable groove; 10, pressing plate; 11, telescopic rod; 12, spring; 13, connecting turning plate; 14, product; 141, base; 142, protruding part. DETAILED DESCRIPTION OF THE INVENTION

[0018] The present invention will be further described below with reference to the drawings and embodiments: All the standard parts used in the present invention can be purchased from the market. The special-shaped parts can be customized according to the descriptions in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here.

[0019] It should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0021] In the description of the present invention, the meaning of "a plurality of" is two or more, unless otherwise clearly and specifically limited.

[0022] An embodiment of the present invention provides an auxiliary jig structure for refurbishing and repairing CVD products. Refer to Figures 1 to 6 , including: a carrier table 1, a first telescopic member 2, a positioning assembly 3, a second telescopic member 4, a third telescopic member 6, a size adjustment assembly 7, and a hinge assembly 8; The carrier table 1 is used to carry the product 14. A plurality of first telescopic members 2 are evenly distributed on the peripheral side of the upper part of the carrier table 1. A positioning assembly 3 is installed on the telescopic ends of the first telescopic members 2 on the same side, which is used to position and support the bottom corners of the product 14. A plurality of second telescopic members 4 are evenly distributed on the peripheral side of the lower part of the carrier table 1. A mounting plate 5 is installed on the telescopic ends of the second telescopic members 4 on the same side. The third telescopic member 6 is installed on the mounting plate 5. The size adjustment assembly 7 is installed on the telescopic end of the third telescopic member 6, which is used to adjust according to the edge size of the surface to be polished of the product 14. The hinge assembly 8 is installed on the size adjustment assembly 7, which is used to assist in positioning the moving position of the size adjustment assembly 7.

[0023] Specifically, the product 14 includes a base 141 and a convex portion 142 mounted on the base 141. The surface to be polished is the top surface of the convex portion 142. The edge dimension of the surface to be polished is the edge dimension of the convex portion 142, and the edge area of the surface to be polished is the edge area of the convex portion 142. The four sides of the base 141 are all outside the carrier 1. The bottom corners of the base 141 are positioned and supported by the positioning assembly 3. The edge area of the convex portion 142 is protected by the dimension adjustment assembly 7.

[0024] In this embodiment, the number of the first telescopic members 2 can be 8. The carrier 1 is a square table, and there are 2 first telescopic members 2 on one side of the carrier 1. The number of the second telescopic members 4 can be 12, and there are 3 second telescopic members 4 on one side of the carrier 1. Similarly, the number of the mounting plates 5 can be 4. The number of the third telescopic members 6 can be 12. One third telescopic member 6 is respectively provided on both sides and the middle of each mounting plate 5 to support and lift the dimension adjustment assembly 7. The numbers of the first telescopic member 2, the second telescopic member 4, and the third telescopic member 6 can be set according to actual situations. The first telescopic member 2, the second telescopic member 4, and the third telescopic member 6 can be air cylinders, electric cylinders, or hydraulic cylinders. In this embodiment, the first telescopic member 2, the second telescopic member 4, and the third telescopic member 6 are hydraulic cylinders.

[0025] Among them, referring to Figure 1 and Figure 2 , in this embodiment, there are four groups of dimension adjustment assemblies 7, which are distributed around the carrier 1.

[0026] Specifically, one group of dimension adjustment assemblies 7 is provided on one side of the carrier 1. The dimension adjustment assembly 7 is used to adjust according to the corresponding edge dimension of the convex portion 142 of the product 14.

[0027] Referring to Figures 2 to 4 , in this embodiment, the positioning assembly 3 includes a positioning plate 31 mounted on the telescopic end of the first telescopic member 2. On the side of the upper part of the positioning plate 31 facing the carrier 1, there is an abutting concave surface 32 for positioning and supporting the bottom corner of the product 14.

[0028] Specifically, the abutting concave surface 32 is L-shaped. The horizontal plane of the abutting concave surface 32 is flush with the top surface of the carrier 1. The bottom surface of the base 141 of the product 14 is supported by the horizontal plane of the abutting concave surface 32. The vertical surface of the abutting concave surface 32 can be in contact with the side of the base 141 of the product 14, and the side of the base 141 of the product 14 is positioned by the vertical surface of the abutting concave surface 32. High-temperature tapes (not shown in the figure) are pasted on both the horizontal plane and the vertical surface of the abutting concave surface 32 to protect the product 14.

[0029] Referring to Figures 1 to 4, in this embodiment, the size adjustment assembly 7 includes a mounting frame 71 installed on the telescopic end of the third telescopic member 6. Inside the mounting frame 71, connecting columns 74 are symmetrically installed. A fixing plate 75 is installed at the middle position of the connecting columns 74. Movable plates 76 are symmetrically and slidably installed on both sides of the connecting columns 74. One end of the fixing plate 75 and the movable plates 76 extends out of the mounting frame 71 and can cooperate with the edge area of the surface to be polished of the product 14. At the bottom of the end of the fixing plate 75 and the movable plates 76 away from the bearing table 1, a hinge assembly 8 is installed for assisting in positioning the moving positions between the fixing plate 75 and the movable plates 76.

[0030] Specifically, the mounting frame 71 is a U-shaped frame; the connecting columns 74 are horizontally arranged; the two movable plates 76 are symmetrically arranged with the fixing plate 75 as the center; the fixing plate 75 is fixedly installed at the middle position of the connecting columns 74; the length of the end of the fixing plate 75 and the movable plates 76 extending out of the mounting frame 71 is greater than the distance between the side of the base 141 of the product 14 and the side of the convex portion 142 of the product 14; the fixing plate 75 and the movable plates 76 can cooperate with the edge area of the convex portion 142 of the product 14, that is, the top surfaces of the fixing plate 75 and the movable plates 76 can protect the edge area of the convex portion 142 of the product 14.

[0031] Among them, referring to Figures 1 to 4 , in this embodiment, the size adjustment assembly 7 further includes a rotating shaft 72 rotatably installed inside the mounting frame 71. One end of the rotating shaft 72 penetrates through the mounting frame 71 and is connected to the output end of the motor 77. A threaded area 73 is provided on one side of the rotating shaft 72. The threaded area 73 is threadedly connected to one of the movable plates 76. The rotating shaft 72 is slidably matched with the other movable plate 76, and the rotating shaft 72 is rotatably matched with the fixing plate 75.

[0032] Specifically, the motor 77 can be a reversible reduction motor; the two connecting columns 74 are symmetrically arranged with the rotating shaft 72 as the center.

[0033] Referring to Figures 1 to 4 , in this embodiment, the moving range between the fixing plate 75 and the movable plates 76 is 0 to 8 cm.

[0034] Specifically, the moving range of the movable plate 76 is 0 to 8 cm from the fixed plate 75, that is, the distance that can be increased between the two movable plates 76 is 16 cm, so that the device can be applicable to the edge size (i.e., the length and width size) change range of the convex part 142 of the product 14 within 0 to 16 cm. Generally, the edge size of the convex part 142 of the product 14 is 240×240 cm; the bottom diameter of the grinding head of the grinding machine is about 12 cm. In practice, 4 grinding heads (two in parallel) are operated by a robot to grind the surface to be ground of the product 14. When grinding the gap between the movable plate 76 and the fixed plate 75, at least one side of the grinding head contacts the surface of the movable plate 76 or the fixed plate 75, so that when the grinding head of the grinding machine grinds the edge of the product 14, it will not tilt, avoiding the edge lubrication of the CVD product 14, enabling the glossiness of the edge of the CVD product 14 to meet the usage requirements, and improving the quality of the CVD product 14.

[0035] Referring to Figures 1 to 4 , in this embodiment, connecting crank plates 13 are installed on the sides of the relatively two groups of movable plates 76 that are close to each other. The connection part between the connecting crank plate 13 and the movable plate 76 forms a corner part, and the corner part can cooperate with the corner position of the edge area of the product 14.

[0036] Specifically, each set of size adjustment components 7 has 2 movable plates 76; connecting crank plates 13 are installed on the sides of the movable plates 76 of the relatively two groups of size adjustment components 7 that are close to each other. Connecting crank plates 13 are installed on the movable plates 76 of the relatively two groups of size adjustment components 7, and the connecting crank plates 13 are installed at the ends of the movable plates 76 of the same set of size adjustment components 7 that are far from each other; connecting crank plates 13 are not provided on the movable plates 76 of the other two groups of size adjustment components 7, and the connecting crank plates 13 cooperate with the movable plates 76 of the adjacent other group of size adjustment components 7 to protect the edge area of the convex part 142 of the product 14; the top surface of the connecting crank plate 13 is flush with the top surface of the movable plate 76; high-temperature tapes (not shown in the figure) are pasted on the sides of the fixed plate 75, the movable plate 76, and the connecting crank plate 13 close to the product 14 to protect the product 14; during grinding, the distance between the fixed plate 75, the movable plate 76, and the connecting crank plate 13 and the side of the convex part 142 of the product 14 is 0.5 to 2 mm; the length of the connecting crank plate 13 along the edge size of the convex part 142 is 10 to 20 cm, preferably 15 cm, and can be specifically set according to the actual situation.

[0037] Referring to Figures 1 to 4 , in this embodiment, during grinding, the surface to be ground of the product 14 is 1 to 2 mm higher than the top surfaces of the fixed plate 75 and the movable plate 76.

[0038] Specifically, the surface of the product 14 to be polished is 1-2 mm higher than the top surfaces of the fixed plate 75, the movable plate 76, and the connecting crank plate 13. That is, the height of the edge area of the surface of the product 14 to be polished is 1-2 mm higher than the top surfaces of the fixed plate 75, the movable plate 76, and the connecting crank plate 13, which facilitates the grinding head of the grinding machine to polish the surface to be polished and the edge of the product 14. During polishing, the fixed plate 75, the movable plate 76, and the connecting crank plate 13 will not block the grinding head of the grinding machine.

[0039] Referring to Figures 1 to 5 , in this embodiment, the hinge assembly 8 includes a long hinge rod 81 hinged to the bottom of the fixed plate 75. Short hinge rods 82 are respectively hinged to the bottoms of the two movable plates 76, and the ends of the short hinge rods 82 are hinged to the ends of the long hinge rod 81.

[0040] Specifically, the middle of the long hinge rod 81 is hinged to the bottom of the fixed plate 75; one end of the short hinge rod 82 is hinged to the bottom of the movable plate 76, and the other end of the short hinge rod 82 is hinged to the end of the long hinge rod 81; The motor 77 drives the rotating shaft 72 to rotate, thereby driving the movable plate 76 connected to the threaded area 73 to move along the rotating shaft 72. Under the position limitation (i.e., auxiliary positioning) between the long hinge rod 81 and the short hinge rod 82, the other movable plate 76 is driven to slide along the rotating shaft 72, so that the positions of the two movable plates 76 are continuously changed, thereby realizing the adjustment of the distance between the movable plate 76 and the fixed plate 75, which is convenient for adjusting according to the edge size of the surface of the product 14 to be polished.

[0041] Referring to Figures 1 to 3 and Figure 6 , in this embodiment, at the bottom of one end where the fixed plate 75 and the movable plate 76 are close to the bearing table 1, a movable groove 9 is provided. A pressing plate 10 is slidably arranged in the movable groove 9. A plurality of telescopic rods 11 are installed between the top of the movable groove 9 and the pressing plate 10, and a spring 12 sleeved on the outer surface of the telescopic rod 11 is connected between the top of the movable groove 9 and the pressing plate 10.

[0042] Specifically, the pressing plate 10 can extend out of the movable groove 9. During polishing, the pressing plate 10 presses against the top surface of the base 141 of the product 14. At this time, the spring 12 is in a compressed state, and the top surfaces of the fixed plate 75 and the movable plate 76 are 1-2 mm lower than the surface of the product 14 to be polished, which improves the polishing effect of the product, and the pressing plate 10 cooperates with the horizontal plane of the abutting concave surface 32, which improves the positioning effect of the product.

[0043] In this embodiment, it further includes a controller (not shown in the figure) for controlling the first telescopic member 2, the second telescopic member 4, the third telescopic member 6, and the motor 77; the first telescopic member 2, the second telescopic member 4, the third telescopic member 6, and the motor 77 are all existing devices and will not be elaborated here.

[0044] Working principle: When in use, according to the size of CVD products with different specifications, the first telescopic member 2 is activated to drive the positioning plate 31 to move. After adjustment, the base 141 of the product 14 is placed on the bearing table 1, and the periphery of the product 14 is supported by the horizontal plane of the abutting concave surface 32. Then, by activating the motor 77, the motor 77 drives the rotating shaft 72 to rotate, thereby driving the movable plate 76 connected to the threaded area 73 to move along the rotating shaft 72. Under the position limiting action between the long hinge rod 81 and the short hinge rod 82, another movable plate 76 is driven to slide along the rotating shaft 72, so that the positions of the two movable plates 76 are continuously changed, thereby realizing the adjustment of the distance between the movable plate 76 and the fixed plate 75, which is convenient for adjusting according to the edge size of the surface to be polished of the product 14. When the adjustment is completed, the fixed plate 75, the movable plate 76 and the connecting crank plate 13 are joined together by the second telescopic member 4. At this time, the joined frame is located above the product 14, and then it descends through the third telescopic member 6. The joined frame protects the edge area of the surface to be polished of the product 14. At the same time, during the descent of the third telescopic member 6, a part of the pressing plate 10 retracts into the movable groove 9, and the pressing plate 10 presses against the top surface of the base 141 of the product 14. The top surfaces of the fixed plate 75, the movable plate 76 and the connecting crank plate 13 are 1-2 mm lower than the surface to be polished of the product 14, so that when the grinding head of the grinding machine grinds the edge of the product 14, it will not tilt, avoiding the edge lubrication of the CVD product 14, enabling the glossiness of the edge of the CVD product 14 to meet the use requirements, and improving the quality of the CVD product 14.

[0045] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0046] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the protection scope of the invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict, make combinations, additions, deletions or other adjustments to the features in the embodiments of the present invention according to the situation without creative work, so as to obtain different technical solutions that essentially do not deviate from the concept of the present invention. These technical solutions also belong to the scope of protection of the present invention.

Claims

1. An auxiliary fixture structure for refurbishing and repairing CVD products, characterized in that: include: A carrying platform (1) for carrying a product (14); A first telescopic member (2), wherein a plurality of first telescopic members (2) are evenly distributed around the upper circumference of the support platform (1); A positioning component (3), a positioning component (3) being installed on the telescopic end of the first telescopic member (2) on the same side, and being used for positioning and supporting the bottom corner of the product (14); A second telescopic member (4), wherein a plurality of second telescopic members (4) are evenly distributed around the lower portion of the support platform (1), and a mounting plate (5) is mounted on the telescopic end of the second telescopic member (4) on the same side; a third telescopic member (6), the third telescopic member (6) being mounted on the mounting plate (5); A size adjustment component (7), the size adjustment component (7) being mounted on the telescopic end of the third telescopic member (6) and being used for adjusting according to the edge size of the surface to be polished of the product (14); A hinge assembly (8), wherein the hinge assembly (8) is mounted on the size adjustment assembly (7) and is used to assist in positioning the moving position of the size adjustment assembly (7).

2. The auxiliary fixture structure for refurbishing and repairing CVD products according to claim 1 is characterized in that: The positioning assembly (3) comprises a positioning plate (31) mounted on the telescopic end of the first telescopic member (2), and an abutting concave surface (32) for positioning and supporting the bottom corner of the product (14) is provided on the upper side of the positioning plate (31) facing the support platform (1).

3. The auxiliary fixture structure for refurbishing and repairing CVD products according to claim 1 is characterized in that: The size adjustment component (7) comprises a mounting frame (71) mounted on the telescopic end of the third telescopic member (6), a connecting column (74) being symmetrically mounted in the mounting frame (71), a fixed plate (75) being mounted in the middle of the connecting column (74), and movable plates (76) being symmetrically slidably mounted on both sides of the connecting column (74), one end of the fixed plate (75) and the movable plate (76) extending out of the mounting frame (71) and being capable of cooperating with an edge area of ​​a surface to be polished of the product (14), and a hinge component (8) for assisting in positioning the moving position between the fixed plate (75) and the movable plate (76) being mounted at the bottom of one end of the fixed plate (75) and the movable plate (76) away from the supporting platform (1).

4. The auxiliary fixture structure for refurbishing and repairing CVD products according to claim 3 is characterized in that: The size adjustment assembly (7) further comprises a rotating shaft (72) rotatably mounted in the mounting frame (71), one end of the rotating shaft (72) passes through the mounting frame (71) and is connected to the output end of the motor (77), a threaded area (73) is provided on one side of the rotating shaft (72), the threaded area (73) is threadedly connected to one of the movable plates (76), the rotating shaft (72) is slidably matched with the other movable plate (76), and the rotating shaft (72) is rotatably matched with the fixed plate (75).

5. The auxiliary fixture structure for refurbishing and repairing CVD products according to claim 4 is characterized in that: The hinge assembly (8) comprises a long hinge rod (81) hinged to the bottom of the fixed plate (75), and the bottoms of the two movable plates (76) are respectively hinged with short hinge rods (82), and the ends of the short hinge rods (82) are hinged to the ends of the long hinge rods (81).

6. The auxiliary fixture structure for refurbishing and repairing CVD products according to claim 5, characterized in that: A movable groove (9) is provided at the bottom of one end of the fixed plate (75) and the movable plate (76) close to the supporting platform (1), a clamping plate (10) is slidably provided in the movable groove (9), a plurality of telescopic rods (11) are installed between the top of the movable groove (9) and the clamping plate (10), and a spring (12) sleeved on the outer surface of the telescopic rod (11) is connected between the top of the movable groove (9) and the clamping plate (10).

7. The auxiliary fixture structure for refurbishing and repairing CVD products according to claim 5, characterized in that: The moving range between the fixed plate (75) and the movable plate (76) is 0 to 8 cm.

8. The auxiliary fixture structure for refurbishing and repairing CVD products according to claim 5, characterized in that: The size adjustment components (7) are provided in four groups and are distributed around the supporting platform (1).

9. The auxiliary fixture structure for refurbishing and repairing CVD products according to claim 8, characterized in that: A connecting bend plate (13) is installed on the side of the two groups of movable plates (76) that are close to each other, and a corner portion is formed at the connection between the connecting bend plate (13) and the movable plate (76), and the corner portion can match the corner position of the edge area of ​​the product (14).

10. The auxiliary fixture structure for refurbishing and repairing CVD products according to claim 9, characterized in that: During grinding, the surface to be ground of the product (14) is 1 to 2 mm higher than the top surfaces of the fixed plate (75) and the movable plate (76).

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