An auxiliary fixture structure for refurbishing and repairing CVD products

Abstract

The present invention relates to the technical field of CVD product processing, and discloses an auxiliary fixture structure for refurbishing and repairing CVD products, which includes a bearing table, a first telescopic member, a positioning assembly, a second telescopic member, a third telescopic member, a size adjustment assembly and a hinge assembly. The bearing table is used for bearing products. A plurality of first telescopic members are evenly distributed around the upper part of the bearing table. A positioning assembly 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 products. A plurality of second telescopic members are evenly distributed around the lower part of the bearing table. A mounting plate is installed on the telescopic ends of the second telescopic members on the same side. The third telescopic member is installed on the mounting plate. The size adjustment assembly is installed on the telescopic end of the third telescopic member. The hinge assembly is installed on the size adjustment assembly. The present invention enables the grinding head of the grinding machine not to tilt when grinding the edges of the products, avoids the edge lubrication of CVD products, enables the gloss of the edges of CVD products to meet the use requirements, and improves the quality.

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 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 to not 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 CVD products of different specification sizes require corresponding different positioning devices, which increases the cost and occupies a large 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:

[0006] An auxiliary jig structure for refurbishing and repairing CVD products, comprising:

[0007] A carrier table for carrying products;

[0008] A first telescopic member, and a plurality of first telescopic members are evenly distributed on the peripheral side of the upper part of the carrier table;

[0009] A positioning component, and the positioning component is installed on the telescopic ends of the first telescopic members on the same side for positioning and supporting the bottom corners of the product;

[0010] A second telescopic member, and a plurality of second telescopic members are evenly distributed on the peripheral side of the lower part of the carrier table, and a mounting plate is installed on the telescopic ends of the second telescopic members on the same side;

[0011] A third telescopic member, and the third telescopic member is installed on the mounting plate;

[0012] A size adjustment component, and the size adjustment component is installed on the telescopic end of the third telescopic member for adjusting according to the edge size of the surface to be ground of the product;

[0013] The hinge assembly is installed on the size adjustment assembly and is used to assist in positioning the moving position of the size adjustment assembly.

[0014] Furthermore, the positioning assembly includes a positioning plate installed on the telescopic end of the first telescopic member, and a concave abutment surface for positioning and supporting the bottom corner of the product is provided on the upper side of the positioning plate facing the supporting platform.

[0015] Furthermore, the size adjustment component includes a mounting frame installed on the telescopic end of the third telescopic member, connecting columns are symmetrically installed in the mounting frame, a fixed plate is installed in the middle position of the connecting column, and movable plates are symmetrically slidably installed on both sides of the connecting column. One end of the fixed plate and the movable plate extends out of the mounting frame and can cooperate with the edge area of the product's surface to be polished. A hinge component for assisting in positioning the moving position between the fixed plate and the movable plate is installed at the bottom of one end of the fixed plate and the movable plate away from the supporting platform.

[0016] Furthermore, the size adjustment component also includes a rotating shaft rotatably installed in the mounting frame, one end of the rotating shaft passes through the mounting frame and is connected to the output end of the motor, a threaded area is provided on one side of the rotating shaft, 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.

[0017] Furthermore, the hinge assembly includes a long hinge rod hinged to the bottom of the fixed plate, and the bottoms of the two movable plates are respectively hinged with short hinge rods, and the ends of the short hinge rods and the ends of the long hinge rods are hinged to each other.

[0018] Furthermore, a movable groove is opened at the bottom of one end of the fixed plate and the movable plate close to the supporting platform, a clamping plate is slidably arranged in the movable groove, a plurality of telescopic rods are installed between the top of the movable groove and the clamping plate, and a spring is connected between the top of the movable groove and the clamping plate and is sleeved on the outer surface of the telescopic rod.

[0019] Furthermore, the movement range between the fixed plate and the movable plate is 0 to 8 cm.

[0020] Furthermore, four groups of size adjustment components are provided and distributed around the supporting platform.

[0021] Furthermore, a connecting bend plate is installed on one side of the two groups of movable plates that are close to each other, and a corner portion is formed at the connection between the connecting bend plate and the movable plate, and the corner portion can match the corner position of the edge area of the product.

[0022] Furthermore, during grinding, the surface to be ground of the product is 1 to 2 mm higher than the top surfaces of the fixed plate and the movable plate.

[0023] Compared with the prior art, the present invention provides an auxiliary fixture structure for refurbishing and repairing CVD products, which has the following beneficial effects:

[0024] 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 bearing 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 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 and enabling the glossiness of the edge of the CVD product to meet the usage requirements, thereby improving the quality of the CVD product.

[0025] 2. By setting the positioning component that can adjust according to the size of CVD products of different specifications, the present invention reduces costs, occupies less space, and improves the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is the top view structural schematic diagram of the present invention;

[0027] Figure 2 is the top view structural schematic diagram of the present invention after removing the product;

[0028] Figure 3 is the front view sectional structural schematic diagram of the present invention;

[0029] Figure 4 is the front view structural schematic diagram of the present invention;

[0030] Figure 5 is Figure 2 the enlarged structural schematic diagram at A in

[0031] Figure 6 is Figure 3 the enlarged structural schematic diagram at B in

[0032] Markings in the figure: 1. Bearing table; 2. First telescopic member; 3. Positioning component; 31. Positioning plate; 32. Abutted 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. Fixed plate; 76. Movable plate; 77. Motor; 8. Articulated component; 81. Long articulated rod; 82. Short articulated rod; 9. Movable slot; 10. Tightening plate; 11. Telescopic rod; 12. Spring; 13. Connecting crank plate; 14. Product; 141. Base; 142. Protruding part. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0034] The standard parts used in the present invention can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the accompanying 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.

[0035] 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 accompanying 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, and therefore cannot 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.

[0036] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" 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 circumstances.

[0037] In the description of the present invention, the meaning of "a plurality" is two or more, unless otherwise clearly and specifically defined.

[0038] The embodiment of the present invention provides an auxiliary fixture 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;

[0039] The carrier table 1 is used to carry the product 14. A number of first telescopic members 2 are evenly distributed around the upper part of the carrier table 1. A positioning component 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 number of second telescopic members 4 are evenly distributed around 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. A third telescopic member 6 is installed on the mounting plate 5, and a size adjustment component 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. A hinge component 8 is installed on the size adjustment component 7, which is used to assist in positioning the moving position of the size adjustment component 7.

[0040] Specifically, the product 14 includes a base 141 and a convex portion 142 installed on the base 141. The surface to be polished is the top surface of the convex portion 142. The edge size of the surface to be polished is the edge size 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 table 1. The bottom corners of the base 141 are positioned and supported by the positioning component 3. The edge area of the convex portion 142 is protected by the size adjustment component 7.

[0041] In this embodiment, the number of the first telescopic members 2 can be 8. The carrier table 1 is a square table, and there are 2 first telescopic members 2 on one side of the carrier table 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 table 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 arranged on both sides and the middle of each mounting plate 5 to support and lift the size adjustment component 7. The numbers of the first telescopic members 2, the second telescopic members 4 and the third telescopic members 6 can be set according to the actual situation. The first telescopic members 2, the second telescopic members 4 and the third telescopic members 6 can be cylinders, electric cylinders or hydraulic cylinders. In this embodiment, the first telescopic members 2, the second telescopic members 4 and the third telescopic members 6 are hydraulic cylinders.

[0042] Among them, referring to Figure 1 and Figure 2 , in this embodiment, there are four groups of size adjustment components 7, which are distributed around the carrier table 1.

[0043] Specifically, one group of size adjustment components 7 is arranged on one side of the carrier table 1. The size adjustment component 7 is used to adjust according to the corresponding edge size of the convex portion 142 of the product 14.

[0044] Referring to Figures 2 to 4 , in this embodiment, the positioning component 3 includes a positioning plate 31 installed on the telescopic end of the first telescopic member 2. An abutting concave surface 32 for positioning and supporting the bottom corner of the product 14 is provided on the side of the upper part of the positioning plate 31 facing the carrier table 1.

[0045] 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 carrying platform 1, and 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 for protecting the product 14.

[0046] 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. Connecting columns 74 are symmetrically installed inside the mounting frame 71. 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. A hinge assembly 8 for assisting in positioning the moving positions between the fixing plate 75 and the movable plates 76 is installed at the bottom of the ends of the fixing plate 75 and the movable plates 76 away from the carrying platform 1.

[0047] 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.

[0048] 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.

[0049] Specifically, the motor 77 can be a deceleration motor that can rotate forward and backward; the two connecting columns 74 are symmetrically arranged with the rotating shaft 72 as the center.

[0050] Referring to Figures 1 to 4 , in this embodiment, the moving range between the fixing plate 75 and the movable plates 76 is 0 - 8 cm.

[0051] Specifically, the moving range of the movable plate 76 is 0 - 8 cm from the fixed plate 75, that is, the distance that can be increased between the two movable plates 76 is 16 cm, enabling this device to be applicable to the edge size (i.e., the length and width size) variation range of the convex part 142 of the product 14 within 0 - 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.

[0052] Refer to Figures 1 to 4 , in this embodiment, on the side where the relatively two groups of movable plates 76 approach each other, a connecting turning plate 13 is installed. The connection part of the connecting turning 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.

[0053] Specifically, each set of size adjustment components 7 has 2 movable plates 76; on the side where the movable plates 76 of the relatively two groups of size adjustment components 7 approach each other, a connecting turning plate 13 is installed. The connecting turning plate 13 is installed on the ends of the movable plates 76 of the relatively two groups of size adjustment components 7 that are far away from each other; on the movable plates 76 of the other two groups of size adjustment components 7, no connecting turning plate 13 is provided, and the connecting turning plate 13 cooperates 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 turning 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 side edges of the fixed plate 75, the movable plate 76, and the connecting turning plate 13 close to the product 14 for protecting the product 14; during grinding, the distance between the fixed plate 75, the movable plate 76, and the connecting turning plate 13 and the side edge of the convex part 142 of the product 14 is 0.5 - 2 mm; the length of the connecting turning plate 13 along the edge size of the convex part 142 is 10 - 20 cm, preferably 15 cm, and can be specifically set according to the actual situation.

[0054] Refer to Figures 1 to 4 , in this embodiment, during grinding, the surface to be ground of the product 14 is 1 - 2 mm higher than the top surfaces of the fixed plate 75 and the movable plate 76.

[0055] 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 edges 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.

[0056] 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 and the ends of the long hinge rod 81 are hinged to each other.

[0057] 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;

[0058] The motor 77 drives the rotation of the rotating shaft 72, 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.

[0059] Referring to Figures 1 to 3 and Figure 6 , in this embodiment, movable grooves 9 are opened at the bottoms of the fixed plate 75 and the movable plate 76 close to one end of the bearing table 1. Tightening plates 10 are slidably arranged in the movable grooves 9. A plurality of telescopic rods 11 are installed between the top of the movable groove 9 and the tightening 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 tightening plate 10.

[0060] Specifically, the tightening plate 10 can extend out of the movable groove 9. During polishing, the tightening 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. 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 tightening plate 10 cooperates with the horizontal plane of the abutting concave surface 32, which improves the positioning effect of the product.

[0061] 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.

[0062] Working principle: During use, according to the size of CVD products of different specifications, the first telescopic member 2 is started to drive the positioning plate 31 to move. After adjustment, the base 141 of the product 14 is placed on the bearing table 1. The periphery of the product 14 is supported by the horizontal plane of the abutting concave surface 32. Then, by starting 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 bent plate 13 are joined together by the second telescopic member 4. At this time, the joined frame is located above the product 14. Then, the third telescopic member 6 descends to protect the edge area of the surface to be polished of the product 14 with the joined frame. 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 bent 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 usage requirements, and improving the quality of the CVD product 14.

[0063] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0064] 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 some 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 efforts 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 without creative efforts according to the situation, so as to obtain different technical solutions that are essentially not divorced from the concept of the present invention, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. An auxiliary jig structure for refurbishing and repairing CVD products, characterized in that, Including: A carrier table (1) for carrying a product (14); A first telescopic member (2), a plurality of first telescopic members (2) being evenly distributed on the peripheral side of the upper part of the carrier table (1); A positioning assembly (3), the positioning assembly (3) being installed on the telescopic ends of the first telescopic members (2) on the same side for positioning and supporting the bottom corners of the product (14); A second telescopic member (4), a plurality of second telescopic members (4) being evenly distributed on the peripheral side of the lower part of the carrier table (1), and a mounting plate (5) being installed on the telescopic ends of the second telescopic members (4) on the same side; A third telescopic member (6), the third telescopic member (6) being installed on the mounting plate (5); A size adjustment assembly (7), the size adjustment assembly (7) being installed on the telescopic end of the third telescopic member (6) for adjusting according to the edge size of the surface to be polished of the product (14); protecting the edge area of the surface to be polished of the product (14) through the size adjustment assembly (7); A hinge assembly (8), the hinge assembly (8) being installed on the size adjustment assembly (7) for assisting in positioning the moving position of the size adjustment assembly (7); The size adjustment assembly (7) includes a mounting frame (71) installed on the telescopic end of the third telescopic member (6), connecting columns (74) being symmetrically installed inside the mounting frame (71), a fixing plate (75) being installed at the middle position of the connecting columns (74), movable plates (76) being symmetrically and slidably installed on both sides of the connecting columns (74), one ends of the fixing plate (75) and the movable plates (76) extending out of the mounting frame (71) and being capable of cooperating with the edge area of the surface to be polished of the product (14), and a hinge assembly (8) for assisting in positioning the moving position between the fixing plate (75) and the movable plates (76) being installed at the bottom of the ends of the fixing plate (75) and the movable plates (76) away from the carrier table (1).

2. The auxiliary jig structure for refurbishing and repairing CVD products according to claim 1, wherein, The positioning assembly (3) includes a positioning plate (31) installed on the telescopic end of the first telescopic member (2), and an abutting concave surface (32) for positioning and supporting the bottom corners of the product (14) being formed on the side of the upper part of the positioning plate (31) facing the carrier table (1).

3. The auxiliary jig structure for refurbishing and repairing CVD products according to claim 2, wherein, 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) passing through the mounting frame (71) and being connected to the output end of a motor (77), a threaded area (73) being provided on one side of the rotating shaft (72), the threaded area (73) being threadedly connected to one of the movable plates (76), the rotating shaft (72) being slidably mated with the other movable plate (76), and the rotating shaft (72) being rotatably mated with the fixing plate (75).

4. The auxiliary jig structure for refurbishing and repairing CVD products according to claim 3, characterized in that, The hinge assembly (8) includes a long hinge rod (81) hinged to the bottom of the fixing plate (75), short hinge rods (82) being respectively hinged to the bottoms of the two movable plates (76), and the ends of the short hinge rods (82) and the ends of the long hinge rod (81) being hinged to each other.

5. The auxiliary jig structure for refurbishing and repairing CVD products according to claim 4, characterized in that, At the bottom of one end of the fixed plate (75) and the movable plate (76) 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). 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).

6. The auxiliary jig structure for refurbishing and repairing CVD products according to claim 5, wherein, The moving range between the fixed plate (75) and the movable plate (76) is 0 - 8 cm.

7. The auxiliary jig structure for refurbishing and repairing CVD products according to claim 5, wherein Four groups of the size adjusting components (7) are provided and are distributed around the bearing table (1).

8. The auxiliary jig structure for refurbishing and repairing CVD products according to claim 7, characterized in that, On one side where two opposite groups of the movable plates (76) are close to each other, a connecting bent plate (13) is installed. A corner part is formed at the connection between the connecting bent plate (13) and the movable plate (76), and the corner part can cooperate with the corner position of the edge area of the product (14).

9. The auxiliary jig structure for refurbishing and repairing CVD products according to claim 8, characterized in that, During grinding, the surface to be ground of the product (14) is 1 - 2 mm higher than the top surfaces of the fixed plate (75) and the movable plate (76).

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