Sandblasting protection model, jig and installation method

Abstract

The present application relates to sand blasting protection jig technical field, specifically is a kind of sand blasting protection model, jig and installation method, it is applicable to the sand blasting protection of glass substrate clamp, including first limiting unit, baffle and second limiting unit, first limiting unit, baffle and second limiting unit protect the smooth area of glass substrate clamp, and expose the sand blasting area of glass substrate clamp, so a kind of sand blasting protection model is provided for special structure glass substrate clamp, it can be based on the structure of such glass substrate clamp and be adapted to clamping protection, and the smooth area is reasonably covered, avoid the influence of sand blasting, in addition, compared with the form of existing adhesive tape protection, the processing efficiency is improved, subsequent cleaning difficulty is reduced, and the first limiting unit, second limiting unit and other positions can be adjusted, so as to meet the needs of different size of such glass substrate clamp, avoid different models to equip different jig.

Description

Technical Field

[0001] This invention relates to the field of sandblasting protective fixture technology, specifically a sandblasting protective model, fixture, and installation method. Background Technology

[0002] Driven by the continuous iteration of the consumer electronics industry, the display panel industry is undergoing a wave of technological innovation, with product forms rapidly evolving towards higher resolution, larger display areas, and thinner designs. As the core transmission node of the production line logistics system, the carrier device is responsible for the precise positioning and stable transmission of glass substrates between key processes such as coating, etching, and lamination. Its mechanical properties and cleanliness control have become core factors determining product yield. With the continuous expansion of panel generation line sizes and the increasing refinement of production processes, the cleaning frequency of the carrier has shifted from periodic maintenance in traditional production models to high-frequency, instant cleaning, posing more stringent technical challenges to the supporting protective processes.

[0003] In the carrier device system, the glass substrate clamp, as a precision component that directly contacts the glass substrate, has its surface treatment process directly affecting the substrate's transport stability and surface integrity. Currently, the industry commonly uses polyetheretherketone (PEEK) material to manufacture the main body of the glass substrate clamp. This material exhibits significant advantages in avoiding substrate contamination due to its excellent high-temperature resistance, chemical inertness, and extremely low metal leaching rate. To enhance clamping friction and optimize stress distribution, the surface of the glass substrate clamp needs to be textured with a specific microstructure through sandblasting. However, while this surface treatment method improves functionality, it also significantly increases the technical complexity of the cleaning process—the sandblasted area and the untreated area are only slightly separated. If abrasive is accidentally sprayed during the cleaning process, it will cause a sudden change in surface roughness in the untreated area, leading to serious malfunctions such as installation and positioning deviations of the glass substrate clamp and jamming of the moving mechanism.

[0004] like Figure 1 , Figure 2 and Figure 3 The image shows a common glass substrate clamp in this field, where the area requiring sandblasting is... Figure 1The middle and upper rough particle area and the smooth area do not need to be sandblasted. When sandblasting is performed, there are certain processing difficulties. On the one hand, the upper part has an L-shaped bending part and a rectangular hammer head part. According to the requirements of subsequent processes, the sandblasting area is concentrated on the front surface of the bending part, the front surface of the hammer head part, the top surface and the back surface flush with the bending part. The side surface of the hammer head part does not need to be sandblasted. On the other hand, the width of the front surface of the hammer head part that needs to be sandblasted is different from the width of the bending part. Therefore, when the front surface is sandblasted, a part of the area of the hammer head part needs to be shielded to prevent the smooth area from being sandblasted. This makes the entire sandblasting operation need to manually cut PET or masking tape to cover the area outside the above three areas to make the profile completely fit. This protection scheme has the following problems in actual application:

[0005] (1) The manual cutting and fitting process is time-consuming and laborious. The protection preparation time of a single glass substrate clamp usually exceeds ten minutes, which is difficult to match the rapid mold changing demand of the production line;

[0006] (2) During the sandblasting process, the high-speed abrasive flow will cause severe impact on the tape, which can easily cause the adhesive interface to peel off and fail, resulting in the risk of protection failure;

[0007] (3) The organic pollutants left after the tape is peeled off need an additional cleaning process, which not only increases the operating cost, but also may irreversibly affect the surface energy characteristics of the PEEK material.

[0008] The superimposed effect of the above technical defects makes the traditional protection scheme unable to meet the strict requirements of modern display panel manufacturing on process stability and production rhythm. A sandblasting protection model and a sandblasting protection jig based on the model are developed for the sandblasting protection of the glass substrate clamp with a bending part and a hammer head part, and the sandblasting width of the bending part is different from the sandblasting width of the front surface of the hammer head part. While ensuring the processing quality of the sandblasting area, the risk of misoperation of the non-processing area is minimized, providing reliable protection for the cleaning and reuse of the glass substrate clamp. SUMMARY

[0009] The purpose of the present application is to provide a sandblasting protection model, jig and installation method.

[0010] The technical scheme adopted by the present application is as follows: a sandblasting protection model suitable for the sandblasting protection of a glass substrate clamp, comprising a first limiting unit, a baffle and a second limiting unit. The first limiting unit, the baffle and the second limiting unit protect the smooth area of the glass substrate clamp and expose the sandblasting area of the glass substrate clamp;

[0011] The side surface of the first limiting unit can abut against the baffle, and the top surface of the first limiting unit can abut against the bending part of the glass substrate clamp and support the glass substrate clamp;

[0012] The second limiting unit is capable of abutting against the smooth part of the glass substrate clamp, and the top surface of the second limiting unit is capable of abutting against the hammer head part of the glass substrate clamp and supporting the glass substrate clamp;

[0013] The baffle is capable of abutting against the smooth part of the glass substrate clamp, and the top part of the baffle is capable of being inserted into the gap between the bending part and the hammer head part and shielding the smooth area between the two bending parts on the hammer head part.

[0014] Further, the first limiting unit, the baffle and the second limiting unit are all made of metal.

[0015] Based on the above sand blasting protection model, the application further provides a sand blasting protection jig comprising a supporting unit and a position adjusting mechanism.

[0016] The supporting unit is arranged between the first limiting unit and the second limiting unit and is used for supporting the smooth part of the glass substrate clamp.

[0017] The position adjusting mechanism is used for adjusting the horizontal and vertical direction positions of the first limiting unit, the second limiting unit and the supporting unit.

[0018] Further, the position adjusting mechanism comprises a cross plate and a position adjusting unit.

[0019] The cross plate is provided with a cross rail.

[0020] The position adjusting unit is mounted on the first limiting unit, the second limiting unit and the supporting unit, and the position adjusting unit is capable of being connected with the cross rail.

[0021] Further, the side surface of the first limiting unit is provided with a first longitudinal rail, and the position adjusting unit mounted on the first limiting unit is capable of being connected with the first longitudinal rail.

[0022] The side surface of the second limiting unit is provided with a second longitudinal rail, and the position adjusting unit mounted on the second limiting unit is capable of being connected with the second longitudinal rail.

[0023] The side surface of the supporting unit is provided with a third longitudinal rail, and the position adjusting unit mounted on the supporting unit is capable of being connected with the third longitudinal rail.

[0024] Further, the position adjusting unit comprises a first sliding rail seat, a supporting sheet and a second sliding rail seat.

[0025] The first sliding rail seat is arranged on one side of the supporting sheet, and the first sliding rail seat is capable of being connected with the cross rail and moving transversely along the cross rail.

[0026] The second sliding rail seat is arranged on the other side of the supporting sheet and is away from the first sliding rail seat, and the second sliding rail seat is capable of being connected with any one of the first longitudinal rail, the second longitudinal rail and the third longitudinal rail and moving longitudinally.

[0027] Furthermore, the sandblasting protective fixture also includes a separator plate, which can be inserted between the first limiting unit and the second limiting unit, and is used to separate adjacent glass substrate clamps.

[0028] Furthermore, the isolation piece includes a hook, a support block, and an insertion block;

[0029] The hook is mounted on the support block and is located on the side away from the first limiting unit and the second limiting unit;

[0030] The size of the support block is larger than the interval between the first limiting unit and the second limiting unit;

[0031] The insertion block is connected to the support block, and the insertion block can be inserted into the gap between the first limiting unit and the second limiting unit and contact the inner wall of the gap.

[0032] This application also provides a method for installing a sandblasting protective fixture, based on a sandblasting protective fixture, including the following steps:

[0033] S1. Wipe the glass substrate clamp and sandblasting protective fixture with anhydrous ethanol;

[0034] S2. Adjust the lateral position of the position adjustment unit installed on the first limiting unit and the lateral position of the position adjustment unit installed on the second limiting unit so that the glass substrate clamp can be placed between the first limiting unit and the second limiting unit;

[0035] S3. Adjust the position of the unit installed on the support unit. Adjust the horizontal and vertical positions of the unit so that the support unit supports the bottom of the glass substrate clamp, places the baffle between the first limiting unit and the glass substrate clamp, and allows its top to be inserted into the gap between the bend and the hammer head, while blocking the smooth area on the hammer head located between the two bends.

[0036] S4. Adjust the lateral position of the position adjustment unit installed on the first limiting unit so that it abuts against one side of the baffle, and then adjust the longitudinal position of the position adjustment unit so that the first limiting unit abuts against the bent part of the glass substrate clamp and supports the glass substrate clamp.

[0037] S5. Adjust the lateral position of the position adjustment unit installed on the second limiting unit so that it abuts against one side of the glass substrate clamp, and then adjust the longitudinal position of the position adjustment unit so that the second limiting unit abuts against the hammer head of the glass substrate clamp and supports the glass substrate clamp.

[0038] S6. Determine whether the area to be sandblasted of the glass substrate fixture is exposed outside the sandblasting protective fixture, and adjust the position of the position adjustment unit until the entire area to be sandblasted of the glass substrate fixture is exposed outside the sandblasting protective fixture.

[0039] Furthermore, in S5, the insertion block is abutted into the gap between the first limiting unit and the second limiting unit by means of a hook and ring, so that the support block can abut against the adjacent glass substrate clamp.

[0040] The beneficial effects of the present invention include at least one of the following;

[0041] 1. A sandblasting protection model is provided for glass substrate clamps with special structures. It can provide adapted clamping protection based on the structure of such glass substrate clamps and reasonably cover smooth areas to avoid the effects of sandblasting. Furthermore, the clamping protection method improves processing efficiency and reduces the difficulty of subsequent cleaning compared to the existing adhesive strip protection method.

[0042] 2. By setting a fixture on the basis of the sandblasting protection model, the positions of the first limiting unit, the second limiting unit and the support unit can be adjusted, thereby meeting the needs of different sizes of such glass substrate clamps and avoiding the need to equip different fixtures for different models. Attached Figure Description

[0043] Figure 1 This is a photograph of a glass substrate clamp.

[0044] Figure 2 A schematic diagram of a glass substrate clamping structure;

[0045] Figure 3 A schematic diagram of the side structure of a glass substrate clamp;

[0046] Figure 4 This is a schematic diagram of a sandblasting protection model structure;

[0047] Figure 5 This is a schematic diagram of the structure of a sandblasting protective fixture in use;

[0048] Figure 6 This is a schematic diagram of a sandblasting protective fixture.

[0049] Figure 7 This is an exploded structural diagram of a sandblasting protective fixture;

[0050] Figure 8 This is a schematic diagram of the position adjustment unit structure;

[0051] Figure 9 This is a schematic diagram of the isolation plate installation structure;

[0052] Figure 10 Schematic diagram of the side structure for installing the isolation plate;

[0053] Figure 11This is a flowchart of a sandblasting protective fixture installation method.

[0054] In the picture:

[0055] 1 is the smooth part, 2 is the bent part, 3 is the hammer head, 4 is the gap, 5 is the first limiting unit, 6 is the baffle, 7 is the second limiting unit, 8 is the support unit, 9 is the horizontal rail, 10 is the horizontal plate, 11 is the first longitudinal rail, 12 is the second longitudinal rail, 13 is the third longitudinal rail, 14 is the position adjustment unit, 15 is the first slide rail seat, 16 is the support piece, 17 is the second slide rail seat, 18 is the support block, 19 is the hook, and 20 is the insertion block. Detailed Implementation

[0056] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described in the accompanying drawings can generally be arranged and designed in various different configurations.

[0057] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0058] It should be noted that, unless otherwise specified, the embodiments and features described in this invention can be combined with each other.

[0059] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0060] like Figure 4 and Figure 5 The aforementioned sandblasting protection model is suitable for sandblasting protection of glass substrate clamps, including a first limiting unit 5, a baffle 6, and a second limiting unit 7. The first limiting unit 5, the baffle 6, and the second limiting unit 7 protect the smooth area of ​​the glass substrate clamp and expose the sandblasted area of ​​the glass substrate clamp.

[0061] One side of the first limiting unit 5 can abut against the baffle 6, and the top surface of the first limiting unit 5 can abut against the bent part 2 of the glass substrate clamp and support the glass substrate clamp.

[0062] One side of the second limiting unit 7 can abut against the smooth part 1 of the glass substrate clamp, and the top surface of the second limiting unit 7 can abut against the hammer head 3 of the glass substrate clamp and support the glass substrate clamp.

[0063] The baffle 6 can abut against the smooth part 1 of the glass substrate clamp, and the top of the baffle 6 can be inserted into the gap 4 between the bent part 2 and the hammer head 3, and block the smooth area on the hammer head 3 located between the two bent parts 2.

[0064] The purpose of this design is to provide a sandblasting protection model for glass substrate clamps with special structures. It can provide adapted clamping protection based on the structure of such glass substrate clamps and reasonably cover smooth areas to avoid the effects of sandblasting. Furthermore, compared with the existing adhesive strip protection, the clamping protection method improves processing efficiency and reduces the difficulty of subsequent cleaning.

[0065] Meanwhile, in this embodiment, the first limiting unit 5, the baffle 6, and the second limiting unit 7 are all made of metal.

[0066] It should be noted that in practical use, the sandblasting material can be glass beads, which are inert inorganic materials that do not chemically react with PEEK. The spherical particles undergo "rolling friction" upon impact, reducing the risk of surface scratches compared to angular media. Ceramic sand can also be used as the sandblasting material, with the first limiting unit 5, baffle 6, and second limiting unit 7 made of metal. In particular, magnetic materials can be selected, which facilitates the fixing of the baffle and will not react with the sandblasting material.

[0067] like Figure 6 to Figure 8 As shown, in this embodiment, a sandblasting protection fixture is also provided, which adds a support unit and a position adjustment mechanism to the sandblasting protection model. The support unit 8 is located between the first limiting unit 5 and the second limiting unit 7 and is used to support the smooth part 1 of the glass substrate clamp.

[0068] The position adjustment mechanism is used to adjust the horizontal and vertical positions of the first limiting unit 5, the second limiting unit 7, and the support unit 8.

[0069] The purpose of this design is to provide a fixture based on the sandblasting protection model, which can adjust the positions of the first limiting unit, the second limiting unit, and the support unit, thereby meeting the needs of different sizes of such glass substrate clamps and avoiding the need to equip different fixtures for different models.

[0070] In practical use, the smooth part 1 of the glass substrate clamp needs to be placed on the support unit 8 first, and simple support is provided by the support unit. Then, the position adjustment mechanism is adjusted based on... Figure 1The shape of the glass substrate fixture is determined by first changing the position of the second limiting unit 7 so that it is close to the smooth part 1. After it is tightly attached, it is moved upward until it abuts against the hammer head 3, exposing the area of ​​the hammer head 3 that needs to be sandblasted. Then, the baffle 6 is placed on the other side of the smooth part 1 so that the baffle 6 can completely cover the area of ​​the smooth part 1 that does not need to be sandblasted, and is clamped in the curved area of ​​the bent part 2. In practice, in order to facilitate the fixing of the baffle 6, the baffle 6 can be made of a magnetic material so that it can be attached to the support unit 8. Finally, the first limiting unit 5 is moved to adjust the second limiting unit 7 so that it can also fix the glass substrate fixture.

[0071] It should be noted that during the design phase, the applicant initially considered a stepped protrusion mold adapted to the structure of the glass substrate clamp. This mold would support the glass substrate clamp by inserting the stepped protrusions into the gaps, and the stepped protrusions would be processed based on the sandblasting area, thus concealing the smooth area and exposing the sandblasting area. However, in actual use, this stepped protrusion support method is not very robust and is prone to loosening during sandblasting. Furthermore... Figure 1 In actual processing, this type of glass substrate fixture has roughly a dozen different specifications for various glass substrates. Each type of glass substrate fixture needs to be processed with a suitable jig. Although the overall processing difficulty is relatively low, this results in a large number of jigs on the processing site, which is inconvenient to manage and prone to misuse. The position adjustment mechanism provided in this embodiment is used for the overall adaptation of this type of glass substrate fixture. Although it is more complicated to use at first and requires adjustment of multiple positions, in field use, the staff can quickly master the use of the position adjustment mechanism after several shifts of training and use.

[0072] In this embodiment, a specific structure of a position adjustment mechanism is provided, wherein the position adjustment mechanism includes a horizontal plate 10 and a position adjustment unit 14;

[0073] A horizontal rail 9 is provided on the horizontal plate 10;

[0074] The position adjustment unit 14 is installed on the first limiting unit 5, the second limiting unit 7 and the support unit 8, and the position adjustment unit 14 can be connected to the horizontal rail 9.

[0075] Meanwhile, a first longitudinal rail 11 is provided on the side of the first limiting unit 5, and the position adjustment unit 14 installed on the first limiting unit 5 can be connected to the first longitudinal rail 11.

[0076] The second limiting unit 7 is provided with a second longitudinal rail 12 on its side, and the position adjustment unit 14 installed on the second limiting unit 7 can be connected to the second longitudinal rail 12.

[0077] The support unit 8 is provided with a third longitudinal rail 13 on its side, and the position adjustment unit 14 installed on the support unit 8 can be connected to the third longitudinal rail 13.

[0078] The purpose of this design is to allow the first limiting unit, the second limiting unit, and the support unit to move horizontally to a certain extent via the horizontal rail, thereby enabling them to accommodate glass substrate clamps of different widths. At the same time, the first, second, and third vertical rails can adjust the height of the first limiting unit, the second limiting unit, and the support unit respectively, thereby enabling them to accommodate glass substrate clamps of different heights.

[0079] At the same time, such as Figure 9 and Figure 10 As shown, in this embodiment, the sandblasting protective fixture also includes a separator plate, which can be inserted between the first limiting unit 5 and the second limiting unit 7. The separator plate is used to separate adjacent glass substrate clamps. The separator plate includes a hook 19, a support block 18 and an insertion block 20.

[0080] The hook 19 is mounted on the support block 18 and is located on the side away from the first limiting unit 5 and the second limiting unit 7;

[0081] The size of the support block 18 is larger than the interval between the first limiting unit 5 and the second limiting unit 7;

[0082] The insertion block 20 is connected to the support block 18. The insertion block 20 can be inserted into the gap between the first limiting unit 5 and the second limiting unit 7 and contact the inner wall of the gap.

[0083] The purpose of this design is that, in actual installation, it is difficult to ensure that there are no gaps between adjacent glass substrate clamps. Therefore, during sandblasting, there is a possibility that sand may leak through the gaps and sandblast the non-sandblasted areas. Therefore, isolation plates are used to protect the sides of the carrier glass substrate clamps.

[0084] Meanwhile, in terms of the specific structure of the isolation plate, it adopts a combination of hooks, support blocks and insertion blocks. The support blocks provide the necessary physical strength, the insertion blocks can be inserted into the gap to protect the side of the glass substrate clamp, and the hooks facilitate quick insertion and removal of the isolation plate.

[0085] like Figure 11 As shown, this embodiment also provides a method for installing a sandblasting protective fixture, including the following steps:

[0086] S1. Wipe the glass substrate clamp and sandblasting protective fixture with anhydrous ethanol;

[0087] S2. Adjust the lateral position of the position adjustment unit 14 installed on the first limiting unit 5 and the lateral position of the position adjustment unit 14 installed on the second limiting unit 7 so that the glass substrate clamp can be placed between the first limiting unit 5 and the second limiting unit 7.

[0088] S3. Adjust the horizontal and vertical positions of the position adjustment unit 14 installed on the support unit 8 so that the support unit 8 supports the bottom of the glass substrate clamp, places the baffle 6 between the first limiting unit 5 and the glass substrate clamp, and allows its top to be inserted into the gap 4 between the bending part 2 and the hammer head 3, while blocking the smooth area on the hammer head 3 located between the two bending parts 2.

[0089] S4. Adjust the lateral position of the position adjustment unit 14 installed on the first limiting unit 5 so that it abuts against one side of the baffle 6, and then adjust the longitudinal position of the position adjustment unit 14 so that the first limiting unit 5 abuts against the bent part 2 of the glass substrate clamp and supports the glass substrate clamp.

[0090] S5. Adjust the lateral position of the position adjustment unit 14 installed on the second limiting unit 5 so that it abuts against one side of the glass substrate clamp, and then adjust the longitudinal position of the position adjustment unit 14 so that the second limiting unit 5 abuts against the hammer head 3 of the glass substrate clamp and supports the glass substrate clamp.

[0091] S6. Determine whether the area to be sandblasted of the glass substrate fixture is exposed outside the sandblasting protective fixture, and adjust the position of the position adjustment unit 14 until the entire area to be sandblasted of the glass substrate fixture is exposed outside the sandblasting protective fixture.

[0092] Meanwhile, it should be noted that in the specific execution of step S5, the insertion block 20 is inserted into the gap between the first limiting unit 5 and the second limiting unit 7 by means of the hook 19, and the support block 18 can abut against the adjacent glass substrate clamp.

[0093] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sandblasting protective fixture, characterized in that, Sandblasting protection for glass substrate clamps includes a first limiting unit (5), a baffle (6), a second limiting unit (7), a support unit (8), and a position adjustment mechanism; The first limiting unit (5), the baffle (6), and the second limiting unit (7) protect the smooth area of ​​the glass substrate clamp and expose the sandblasted area of ​​the glass substrate clamp. One side of the first limiting unit (5) can abut against the baffle (6), and the top surface of the first limiting unit (5) can abut against the bent part (2) of the glass substrate clamp and support the glass substrate clamp. One side of the second limiting unit (7) can abut against the smooth part (1) of the glass substrate clamp, and the top surface of the second limiting unit (7) can abut against the hammer head (3) of the glass substrate clamp and support the glass substrate clamp. The baffle (6) can abut against the smooth part (1) of the glass substrate clamp. The top of the baffle (6) can be inserted into the gap (4) between the bent part (2) and the hammer head (3) and block the smooth area on the hammer head (3) located between the two bent parts (2). The support unit (8) is located between the first limiting unit (5) and the second limiting unit (7) and is used to support the smooth part (1) of the glass substrate clamp. The position adjustment mechanism is used to adjust the horizontal and vertical positions of the first limiting unit (5), the second limiting unit (7), and the support unit (8); The position adjustment mechanism includes a horizontal plate (10) and a position adjustment unit (14). A horizontal rail (9) is provided on the horizontal plate (10); The position adjustment unit (14) is installed on the first limiting unit (5), the second limiting unit (7) and the support unit (8), and the position adjustment unit (14) can be connected to the horizontal rail (9); The first limiting unit (5) is provided with a first longitudinal rail (11) on its side, and the position adjustment unit (14) installed on the first limiting unit (5) can be connected to the first longitudinal rail (11); The second limiting unit (7) is provided with a second longitudinal rail (12) on its side, and the position adjustment unit (14) installed on the second limiting unit (7) can be connected to the second longitudinal rail (12); The support unit (8) is provided with a third longitudinal rail (13) on its side, and the position adjustment unit (14) installed on the support unit (8) can be connected to the third longitudinal rail (13). The position adjustment unit (14) includes a first slide rail seat (15), a support plate (16), and a second slide rail seat (17). The first slide rail seat (15) is located on one side of the support plate (16). The first slide rail seat (15) can be connected to the horizontal rail (9) and move laterally along the horizontal rail (9). The second slide rail seat (17) is located on the other side of the support plate (16) and away from the first slide rail seat (15). The second slide rail seat (17) can be connected to any one of the first longitudinal rail (11), the second longitudinal rail (12) and the third longitudinal rail (13) and can move longitudinally.

2. The sandblasting protective fixture according to claim 1, characterized in that, The sandblasting protective fixture also includes a separator plate, which can be inserted between the first limiting unit (5) and the second limiting unit (7). The separator plate is used to separate adjacent glass substrate clamps.

3. A sandblasting protective fixture according to claim 2, characterized in that, The isolation plate includes a hook (19), a support block (18), and an insertion block (20); The hook (19) is mounted on the support block (18) and is located on the side away from the first limiting unit (5) and the second limiting unit (7); The size of the support block (18) is larger than the interval between the first limiting unit (5) and the second limiting unit (7); The insertion block (20) is connected to the support block (18). The insertion block (20) can be inserted into the gap between the first limiting unit (5) and the second limiting unit (7) and contact the inner wall of the gap.

4. A method for installing a sandblasting protective fixture, based on the sandblasting protective fixture described in claim 3, characterized in that, Includes the following steps: S1. Wipe the glass substrate clamp and sandblasting protective fixture with anhydrous ethanol; S2. Adjust the lateral position of the position adjustment unit (14) installed on the first limiting unit (5) and the lateral position of the position adjustment unit (14) installed on the second limiting unit (7) so that the glass substrate clamp can be placed between the first limiting unit (5) and the second limiting unit (7); S3. Adjust the horizontal and vertical positions of the position adjustment unit (14) installed on the support unit (8) so that the support unit (8) supports the bottom of the glass substrate clamp, places the baffle (6) between the first limiting unit (5) and the glass substrate clamp, and allows its top to be inserted into the gap (4) between the bent part (2) and the hammer head (3), while blocking the smooth area on the hammer head (3) located between the two bent parts (2); S4. Adjust the lateral position of the position adjustment unit (14) installed on the first limiting unit (5) so that it abuts against one side of the baffle (6), and then adjust the longitudinal position of the position adjustment unit (14) so ​​that the first limiting unit (5) abuts against the bent part (2) of the glass substrate clamp and supports the glass substrate clamp. S5. Adjust the lateral position of the position adjustment unit (14) installed on the second limiting unit (7) so that it abuts against one side of the glass substrate clamp, and then adjust the longitudinal position of the position adjustment unit (14) so ​​that the second limiting unit (7) abuts against the hammer head (3) of the glass substrate clamp and supports the glass substrate clamp. S6. Determine whether the area to be sandblasted of the glass substrate fixture is exposed outside the sandblasting protective fixture, and adjust the position of the position adjustment unit (14) until the entire area to be sandblasted of the glass substrate fixture is exposed outside the sandblasting protective fixture.

5. The method for installing a sandblasting protective fixture according to claim 4, characterized in that, In S5, the insertion block (20) is abutted into the gap between the first limiting unit (5) and the second limiting unit (7) by the hook (19), and the support block (18) can abut against the adjacent glass substrate clamp.

Images