Pressure maintaining clamp attached to product to be subjected to pressure maintaining

Abstract

The utility model discloses a pressure maintaining clamp attached to a product to be subjected to pressure maintaining, which comprises a clamp body which comprises a step surface and a cavity body connected with the step surface in a sinking manner; an adhesive tape positioning groove is formed in the upper clamp surface of the clamp body, and a profiling adhesive tape is fixed in the adhesive tape positioning groove; a middle frame supporting point is fixedly arranged on the lower clamp surface of the clamp body; a pressure maintaining clamp outer frame is fixedly arranged on the periphery of the step face of the clamp body. A plurality of magnet positioning grooves are formed in the pressure maintaining clamp outer frame, and magnets are fixedly installed in the magnet positioning grooves. A plurality of pressure maintaining clamp positioning grooves are further formed in the pressure maintaining clamp outer frame, and pressure maintaining clamp positioning columns are arranged in the pressure maintaining clamp positioning grooves. A plurality of screw holes are uniformly formed in the step surface of the clamp body; product hand taking positions are arranged on the two sides of the pressure maintaining clamp outer frame, so that personnel can conveniently take the middle frame from the product hand taking positions on the two sides of the middle frame. Efficient pressing is completed through the matched profiling rubber strip and the product to be subjected to pressure maintaining.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure-holding processing, in particular to a pressure-holding fixture for fitting a product to be pressure-held. Background Art

[0002] With the development of the times, intelligent terminals such as mobile phones and tablets have become indispensable electronic products in work and life, and the design and production processes of intelligent terminals have also undergone earth-shaking changes. During the production process, the fixing method of the screen and the battery cover has changed from the original snap fastener to back glue, and then from back glue to hot melt adhesive; the snap fastener fixing method requires adding the locking of screws, the back glue fixing method requires adding a pressing fixture to activate the back glue, and the hot melt adhesive fixing method requires adding a pressure-holding fixture to assist the curing of the hot melt adhesive.

[0003] The basic principle of pressure-holding: Use a pressing strip to continuously press on the screen or the battery cover until the hot melt adhesive cures. The basic method of pressure-holding: Apply hot melt adhesive around the middle frame; align the screen or the battery cover with the periphery of the middle frame for fitting and assembling; the pressing strip is fixed in the pressure-holding fixture. After two pressure-holding fixtures are buckled together, the pressing strip gives a continuous and stable pressure to the screen or the battery cover until the hot melt adhesive cures. Generally, the pressing strip is made of silicone with a certain hardness. The shape of the pressing strip is usually designed as a cylinder, and the pressing strip is also called a rubber strip. When the rubber strip is pressed onto the screen or the battery cover, the surface formed after the deformation at the tangent position between the rubber strip and the screen or the battery cover contacts the screen or the battery cover, and the contact area depends on the amount of deformation of the rubber strip. The amount of deformation of the rubber strip depends on the fixing method of the pressure-holding fixture (the fixing methods include magnets, snap fasteners, or others).

[0004] With the development of electronic products, the number of electronic products using curved screens has also begun to increase. The cylindrical rubber strip cannot maintain a perpendicular pressure at the curved surface of the curved screen, and the circular pressing strip does not completely press on the back glue, so the pressure-holding effect is greatly reduced.

[0005] The deficiencies of the current pressure-holding methods are as follows:

[0006] 1. When the circular rubber strip is used for pressure-holding, the contact area with the screen or the battery cover after deformation is smaller than the area of the back glue;

[0007] 2. When the circular rubber strip is used for pressure-holding, the width of the contact surface is uniform, while the back glue is not a regular rectangle, so the pressing shape cannot be consistent with the shape of the back glue;

[0008] 3. The circular rubber strip has a poor fit with the curved screen, and the pressure at the curved surface cannot be perpendicular to the screen or the battery cover. Summary of the Utility Model

[0009] Technical objective: Aiming at the defects in the prior art, the utility model discloses a pressure-holding fixture for fitting a product to be pressure-held, and high-efficiency pressing is completed through a matching profiling rubber strip and the product to be pressure-held.

[0010] Technical solution: To achieve the above technical objective, the utility model adopts the following technical solutions.

[0011] A pressure-holding fixture for fitting a product to be pressure-held, comprising:

[0012] A fixture body, the upper surface of the fixture body serves as the upper fixture surface, and the upper fixture surface is used to contact the non-pressure-held surface of the product to be pressure-held; the lower surface of the fixture body serves as the lower fixture surface, and the lower fixture surface is used to contact the pressure-held surface of the product to be pressure-held;

[0013] The fixture body includes a stepped surface and a cavity body connected to the stepped surface in a sunken manner, and the cavity body is used to place the product to be pressure-held; on the upper fixture surface of the fixture body, that is, at the bottom of the cavity, there is a rubber strip positioning groove, and a profiling rubber strip is fixed in the rubber strip positioning groove;

[0014] On the lower fixture surface of the fixture body, a middle frame and middle frame support points located on the middle frame are fixedly arranged; the middle frame support points are used to fix the inside of the middle frame, so that the middle frame cannot move in the front-back, left-right, up-down directions when placed in the pressure-holding fixture;

[0015] The outer periphery of the stepped surface of the fixture body is fixedly provided with a pressure-holding fixture outer frame for limiting the product to be pressure-held; a plurality of magnet positioning grooves are evenly arranged on the pressure-holding fixture outer frame, and magnets are fixedly installed in the magnet positioning grooves;

[0016] The pressure-holding fixture outer frame is also provided with a plurality of pressure-holding fixture positioning grooves, and pressure-holding fixture positioning posts are arranged in the pressure-holding fixture positioning grooves for positioning two adjacent pressure-holding fixtures; a plurality of screw holes are evenly opened on the stepped surface of the fixture body, and two adjacent pressure-holding fixtures are used to insert screws into the screw holes under the positioning cooperation of the pressure-holding fixture positioning posts to achieve fixation;

[0017] Product handling positions are arranged on both sides of the pressure-holding fixture outer frame for facilitating personnel to take the middle frame from the product handling positions on both sides of the middle frame.

[0018] Preferably, the profiling rubber strip has the same shape and size as the back glue of the product to be pressure-held, and the profiling rubber strip includes a connected bottom surface rubber and a curved surface rubber, the bottom surface rubber is used to bond the non-pressure-held surface of the product to be pressure-held, and the curved surface rubber is used to bond the two side curved surfaces of the product to be pressure-held.

[0019] Preferably, the profiling rubber strip is made of silica gel material, with a hardness of 20-30 degrees, a compression ratio of the rubber strip of 0.5-0.7, and a pressure reaching 70-110N.

[0020] Preferably, the magnetic pole directions of the installation of the square magnets in two adjacent pressure-holding fixtures are kept consistent.

[0021] Preferably, the magnet positioning groove is a cylindrical shape with a diameter of 7.9 mm and a height of 5 mm.

[0022] Preferably, the sizes of the pressure-holding fixture positioning groove and the pressure-holding fixture positioning post are a diameter of 8.2 mm and a height of 4.5 mm.

[0023] Beneficial effects:

[0024] 1. The area of the profiling rubber strip pressing surface is the same as the size of the back glue surface, enabling the back glue to be fully stressed.

[0025] 2. The curvature of the profiling rubber strip is consistent with the surface curvature of the product to be pressed, being suitable for curved screens, ordinary screens, and battery covers.

[0026] 3. The curved surface part of the profiling rubber strip applies a vertical pressure to the back glue, enabling the curved surface position to be evenly stressed.

[0027] 4. The matching pressure-holding fixture device carries the profiling rubber strip and the product to complete efficient pressing. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic structural diagram of the profiling rubber strip inside the screen pressure-holding fixture for Embodiment 1;

[0029] Figure 2 It is a schematic structural diagram of the profiling rubber strip assembled into the positioning groove for Embodiment 1;

[0030] Figure 3 It is a schematic structural diagram of the profiling rubber strip surface of the pressure-holding fixture for Embodiment 1;

[0031] Figure 4 It is a schematic structural diagram of the middle frame positioning surface of the pressure-holding fixture for Embodiment 1;

[0032] Figure 5 It is a schematic diagram of the pressing of two pressure-holding fixtures for Embodiment 1;

[0033] Figure 6 It is a schematic structural diagram of the profiling rubber strip inside the battery cover pressure-holding fixture for Embodiment 2;

[0034] Figure 7 It is a schematic structural diagram of the profiling rubber strip assembled into the positioning groove for Embodiment 2;

[0035] Figure 8 It is a schematic structural diagram of the profiling rubber strip surface of the pressure-holding fixture for Embodiment 2;

[0036] Figure 9 It is a schematic structural diagram of the middle frame positioning surface of the pressure-holding fixture for Embodiment 2;

[0037] Figure 10 It is a schematic diagram of the pressing of two pressure-holding fixtures for Embodiment 2;

[0038] Among them, 1. Profiling rubber strip; 2. Rubber strip positioning groove; 3. Screw hole; 4. Middle frame support point; 5. Pressure-holding fixture outer frame; 6. Magnet; 7. Pressure-holding fixture positioning groove; 8. Pressure-holding fixture positioning post; 9. Product gripping position; 10. Magnet positioning groove; 11 is the fixture gripping position. Specific embodiments

[0039] The following further describes and explains a pressure-holding fixture for laminating a product to be pressure-held in combination with the accompanying drawings and embodiments.

[0040] A pressure-holding fixture for laminating a product to be pressure-held according to the present invention includes:

[0041] A fixture body, the upper surface of the fixture body serves as the upper fixture surface, and the upper fixture surface is used to contact the non-pressure-holding surface of the product to be pressure-held; the lower surface of the fixture body serves as the lower fixture surface, and the lower fixture surface is used to contact the pressure-holding surface of the product to be pressure-held;

[0042] The fixture body includes a stepped surface and a cavity body connected to the stepped surface in a sunken manner. The cavity body is used to place the product to be pressure-held; on the upper fixture surface of the fixture body, that is, at the bottom of the cavity, there is a rubber strip positioning groove 2, and a profiling rubber strip 1 is fixed in the rubber strip positioning groove 2; the profiling rubber strip 1 includes a connected bottom surface rubber and a curved surface rubber. The bottom surface rubber is used to bond the non-pressure-holding surface of the product to be pressure-held, and the curved surface rubber is used to bond the two side curved surfaces of the product to be pressure-held; the profiling rubber strip 1 has the same shape and size as the back glue of the product to be pressure-held; the profiling rubber strip 1 is made of silicone material, and the hardness of the silicone is selected according to the required pressure-holding force. The greater the hardness, the smaller the deformation amount and the greater the generated pressure. The curved surface rubber pressing surface of the profiling rubber strip 1 has the same curvature as the curved surface of the product to be pressure-held, and the curved surface rubber of the profiling rubber strip 1 can wrap the curved surface part of the product to be pressure-held, so that the curved surface part of the product to be pressure-held can also receive a vertical force.

[0043] A middle frame and a middle frame support point 4 located on the middle frame are fixedly arranged on the lower fixture surface of the fixture body; the middle frame support point 4 is used to fix the inside of the middle frame, so that the middle frame cannot move left and right, up and down in the pressure-holding fixture;

[0044] A pressure-holding fixture outer frame 5 is fixedly arranged on the outer periphery of the stepped surface of the fixture body for limiting the product to be pressure-held; a plurality of magnet positioning grooves 10 are provided on the pressure-holding fixture outer frame 5, and magnets 6 are fixedly installed in the magnet positioning grooves 10; the magnetic pole directions of the magnets installed in the adjacent two pressure-holding fixtures are kept consistent;

[0045] The outer frame 5 of the pressure-maintaining clamp is also provided with a plurality of pressure-maintaining clamp positioning grooves 7, and the pressure-maintaining clamp positioning grooves 7 are provided with pressure-maintaining clamp positioning columns 8 for positioning two adjacent pressure-maintaining clamps; a plurality of screw holes 3 are evenly arranged on the step surface of the clamp body, and two adjacent pressure-maintaining clamps are used to be fixed by inserting the screw holes 3 under the positioning cooperation of the pressure-maintaining clamp positioning columns 8, and the screw holes 3 are used to fix the rubber strip positioning groove 2 and the pressure-maintaining clamp together; the pressure-maintaining clamp positioning groove 7 is adjacent to the magnet positioning groove 10;

[0046] Product taking positions 9 are provided on both sides of the pressure-maintaining fixture outer frame 5 to facilitate personnel to take the middle frame from the product taking positions 9 on both sides of the middle frame.

[0047] The utility model discloses a pressure-holding clamp that fits the product to be pressurized, which has three characteristics: support, restriction and fool-proofing. Specifically, it supports the entire pressing process of the product to be pressurized; after the product is placed in the pressure-holding clamp, it will be restricted and cannot move forward, backward, left, right, up or down; fool-proofing is to prevent the operator from putting the product upside down during rapid operation. The magnet 6 is installed in the magnet positioning groove 10, and the magnetic pole direction of the square magnet installed in the two adjacent pressure-holding clamps is consistent. By using the principle of magnet attraction between opposite poles, when the upper pressure-holding clamp is placed on the lower pressure-holding clamp, the two clamps can be firmly adsorbed together; the pressure-holding clamp positioning column 8 and the corresponding pressure-holding clamp positioning groove 7 are designed to prevent fools, so as to reduce the risk of reverse installation of the pressure-holding clamp; a hand-picking position is designed at one end of the upper pressure-holding clamp and the lower pressure-holding clamp, so as to facilitate the opening of the adsorbed pressure-holding clamps.

[0048] The use process of the utility model is:

[0049] Take a pressure-holding fixture as the lower pressure-holding fixture and place it on the table; place the product to be pressurized with the pressure-holding surface facing up in the lower pressure-holding fixture, and place the product according to the direction marked in the fixture; take a pressure-holding fixture as the upper pressure-holding fixture (with the contoured rubber strip facing down) and align it with the lower pressure-holding fixture. After the magnets adsorb each other, the upper and lower pressure-holding fixtures are adsorbed together; place the pressure-holding products and pressure-holding fixtures layer by layer according to the above steps. A maximum of 10 products and 11 pressure-holding fixtures form a group. According to the curing characteristics of the glue, the product needs to be pressurized for 4-8 hours before removing the pressure-holding fixture.

[0050] Example 1: Curved screen as the pressure-maintained product

[0051] As attached Figure 1 As shown, according to the shape and size of the adhesive backing of the curved screen of the middle frame and the pressure-maintained product, a contoured rubber strip 1 of the same shape and size is made. The contoured rubber strip 1 is made of silicone material with a hardness of 20-30 degrees. The compression ratio of the rubber strip is 0.5-0.7, and the pressure can reach 70-110N.

[0052] As attached Figure 2As shown in the figure, on the upper fixture surface of the fixture body, the profiling rubber strip 1 is fixed in the rubber strip positioning groove 2; on the lower fixture surface, the inner part of the middle frame is fixed by the middle frame fixing support point 4, so that the middle frame cannot move in the front-back, left-right, up-down directions when placed in the pressure-holding fixture; on the step surface of the fixture body, a total of 10 screw holes 3 are designed on two tops and two sides, which are used to fix it on the outer frame of the pressure-holding fixture.

[0053] As shown in the attached Figure 3 and attached Figure 4 As shown in the figure, the outer frame 5 of the pressure-holding fixture is designed according to the shape and size of the pressure-holding screen. There are 12 magnet positioning grooves 10 evenly distributed around the outer frame 5 of the pressure-holding fixture, with 4 magnet positioning grooves 10 on each long side and 2 magnet positioning grooves 10 on each short side, which are used to fix the magnets 6. The magnet positioning groove 10 is a cylindrical shape with a diameter of 7.9 mm and a height of 5 mm; there is a pressure-holding fixture positioning post 8 in the pressure-holding fixture positioning groove 7; there are also 4 pressure-holding fixture positioning grooves 7 on the outer frame 5 of the pressure-holding fixture. The sizes of the pressure-holding fixture positioning groove 7 and the pressure-holding fixture positioning post 8 are a diameter of 8.2 mm and a height of 4.5 mm; there are product handle positions 9 on both sides of the outer frame 5 of the pressure-holding fixture, which is convenient for personnel to take the middle frame from both sides of the middle frame.

[0054] The curved screen is used as the product to be pressure-held. The assembly process of the pressure-holding fixture is as follows:

[0055] ① Align the outlet of the AB glue with the appropriate position in the rubber strip positioning groove 2, and gently squeeze out an appropriate amount of glue; then, carefully place the intact profiling rubber strip 1 into the rubber strip positioning groove 2, and gently press the rubber strip with tools such as fingers or tweezers to make it fully contact with the glue and stick firmly; place it aside and wait for the glue to solidify to ensure that the profiling rubber strip 1 is fixed in the rubber strip positioning groove 2 without moving.

[0056] ② Apply the AB glue evenly on the side of the magnet 6 that needs to be pasted and the magnet positioning groove 10; then, after determining the magnetic direction according to the requirements, accurately place the magnet 6 into the magnet positioning groove 10 and gently press it with hands or tools to make the magnet 6 closely combine with the magnet positioning groove 10; then, align the rubber strip positioning groove 2 with the fixed profiling rubber strip with the fixture positioning groove 10, slowly insert it for assembly. When the assembly is in place, take out 10 flat head cross M3x12 screws, and use a cross screwdriver to screw the screws into the corresponding screw holes 3 one by one, and gradually tighten the screws in a diagonal or symmetrical order to ensure the stability of the entire assembly structure and complete the installation of the upper fixture surface of the pressure-holding fixture.

[0057] ③ Flip the side of the middle frame support point 4 of the pressure-holding fixture, that is, the lower fixture surface, to the upward side, and find the magnet positioning groove 10; first apply the AB glue evenly on the magnet 6, and then, according to the requirements of the magnetic direction, place the magnet 6 into the magnet positioning groove 10 of the fixture and press it to fix it to complete the installation of the lower fixture surface of the pressure-holding fixture.

[0058] As shown in the attached Figure 5 figure, the usage process of the screen pressure-holding fixture is as follows:

[0059] ① Upper pressure-holding: Take a pressure-holding fixture, place the upper pressure-holding surface downward, take the product to be pressure-held, and place it steadily on the pressure-holding fixture with the surface to be pressure-held (display screen) upward. Note that the USB and REV directions on the product are consistent with the USB and RVC directions marked on the pressure-holding fixture. At this time, the magnets 6 on the upper and lower pressure-holding fixtures will attract each other due to magnetic force, causing the upper and lower pressure-holding fixtures to fit tightly together. During this process, the profiling rubber strip 1 of the upper pressure-holding fixture will deform to a certain extent according to the specific shape of the product, so as to better fit the product surface and ensure that the pressure can be applied evenly and stably on the product. By analogy, 10 products are taken as a pressure-holding unit. After assembly, they are placed on the static rack and left to stand for 4H.

[0060] ② Disassembling pressure-holding: Place the fixture that has completed standing horizontally on the table, use your hand to hold the fixture handle position 11 and the product handle position 9 to remove the upper pressure-holding fixture, gently take out the product from the lower pressure-holding fixture, and check the pressure-holding effect. If it is OK, it has a normal streamline; if it is NG, pick it out and place it separately for centralized unified maintenance.

[0061] When in use, always pay attention to the connection status of each component of the pressure-holding fixture to ensure that the screws are not loose, the magnet 6 is firmly fixed in the magnet positioning groove 10, and the profiling rubber strip 1 has not shifted or been damaged. If any abnormal situation is found during the use process, such as looseness, abnormal noise, unstable pressure, etc., immediately stop using it and conduct a comprehensive inspection and maintenance of the fixture. You can check whether the screws are loose, whether the magnet 6 has shifted, and whether the profiling rubber strip 1 is damaged, etc., and repair or replace the components in time to ensure that the fixture can be used normally and safely.

[0062] Example 2: The battery cover is used as the product to be pressure-held

[0063] As shown in the attached Figure 6 figure, according to the shape and size of the back glue on the battery cover, a profiling rubber strip 1 of the same shape and size is made. The profiling rubber strip 1 is made of silicone material, with a hardness of 20 - 30 degrees, a compression ratio of the rubber strip of 0.5 - 0.7, and the pressure can reach 70 - 110N.

[0064] As shown in the attached Figure 7 figure, on the upper fixture surface of the fixture body, the profiling rubber strip 1 is fixed in the rubber strip positioning groove 2; on the lower fixture surface, the middle frame fixing support point 4 fixes the inside of the middle frame, so that the middle frame cannot move horizontally, vertically, or in any direction when placed in the pressure-holding fixture; on the step surface of the fixture body, a total of 10 screw holes 3 are designed at two tops and two sides to fix it on the outer frame of the pressure-holding fixture.

[0065] As shown in the attachedFigure 8 and the attached Figure 9 As shown, according to the shape and size of the pressure-holding screen, the outer frame 5 of the pressure-holding fixture is designed. There are 12 magnet positioning grooves 10 evenly distributed around the outer frame 5 of the pressure-holding fixture, 4 magnet positioning grooves 10 on each long side, and 2 magnet positioning grooves 10 on each short side, which are used to fix the magnets 6. The magnet positioning grooves 10 are cylindrical with a diameter of 7.9 mm and a height of 5 mm; there is a pressure-holding fixture positioning post 8 in the pressure-holding fixture positioning groove 7; there are also 4 pressure-holding fixture positioning grooves 7 on the outer frame 5 of the pressure-holding fixture, and the dimensions of the pressure-holding fixture positioning groove 7 and the pressure-holding fixture positioning post 8 are a diameter of 8.2 mm and a height of 4.5 mm; there are product handling positions 9 on both sides of the outer frame 5 of the pressure-holding fixture, which facilitate personnel to pick up the middle frame from both sides of the middle frame and take out the pressure-holding product. There is a fixture handling position 11 at one corner of the outer frame 5 of the pressure-holding fixture, which is used to separate two adjacent pressure-holding fixtures.

[0066] Regarding the curved screen as the product to be pressure-held, the assembly process of the pressure-holding fixture is as follows:

[0067] ① Pick up the rubber strip positioning fixture, check whether there are any abnormalities or damages, take the AB glue, and apply the glue to the appropriate position in the rubber strip positioning groove 2; take out the profiling rubber strip 1, check whether it is intact, and then put the profiling rubber strip 1 into the rubber strip positioning groove 2. Use tools such as fingers or tweezers to gently press the rubber strip to make it fully contact with the glue and stick firmly; place it aside and wait for the glue to solidify to ensure that the profiling rubber strip 1 remains fixed in the rubber strip positioning groove 2.

[0068] ② Pick up the pressure-holding fixture, turn the rubber strip positioning groove 2 to be installed to the upward-facing side, and find the magnet positioning groove 10. Then pick up the magnet 6, determine the magnetic direction according to the requirements, and evenly apply the AB glue to the side of the magnet 6 that needs to be pasted and the magnet positioning groove 10. Then accurately place the magnet 6 into the magnet positioning groove 10 and gently press it with your hand or tools to make the magnet 6 closely combine with the magnet positioning groove 10. Next, pick up the already fixed rubber strip positioning groove 2, align it with the position of the rubber strip positioning groove 2 to be installed on the pressure-holding fixture, and slowly insert it for assembly. When the assembly is in place, take out 10 flat-head cross M3x12 screws, and use a cross screwdriver to screw the screws into the corresponding screw holes 3 one by one, and gradually tighten the screws in a diagonal or symmetrical order to ensure the stability of the entire assembly structure;

[0069] ③ Pick up the pressure-holding fixture, turn the middle frame fixed support point 4 to the upward-facing side, and also find the magnet positioning groove 10. Just like the operation on the magnet 6 in the second step, first evenly apply the AB glue on the magnet 6 and the magnet positioning groove 10, and then place the magnet 6 into the magnet positioning groove 10 of the fixture according to the requirements of the magnetic direction and press it to fix. Carefully check whether the magnet 6 is firmly installed and the magnetic direction is correct;

[0070] As attached Figure 10As shown in the figure, the usage process of the battery screen pressure-holding fixture is as follows:

[0071] ① Upper pressure-holding: Take a pressure-holding fixture with the upper pressure-holding surface facing downwards. Take the product to be pressure-held and place it steadily on the pressure-holding fixture with the surface to be pressure-held (the battery cover) facing upwards. Note that the USB and REV directions on the product should be consistent with the USB and RVC directions marked on the pressure-holding fixture. Confirm that the product is fixed in the pressure-holding fixture and cannot move back and forth or left and right. Then pick up another pressure-holding fixture with the upper pressure-holding surface facing downwards. Let the Mark RVC end slowly approach the lower pressure-holding fixture first, and then slowly lower the product at the product picking position 9. At this time, the magnets 6 on the upper and lower pressure-holding fixtures will attract each other due to the magnetic force, making the upper and lower pressure-holding fixtures fit tightly together. During this process, the profiling rubber strip 1 of the upper pressure-holding fixture will deform to a certain extent according to the specific shape of the product, so as to better fit the product surface and ensure that the pressure can be applied evenly and stably on the product. By analogy, 10 products are taken as a pressure-holding unit. After assembly, place them on the static rack and let them stand for 4 hours.

[0072] ② Disassembling pressure-holding: Place the fixture that has completed standing horizontally on the table. Use your hand to hold the fixture picking position 11 and the product picking position 9 to remove the upper pressure-holding fixture. The fixture picking position 11 is used to disassemble the two suction-joined pressure-holding fixtures; gently take out the product from the lower pressure-holding fixture and check the pressure-holding effect. If it is OK, it has a normal streamline; if it is NG, pick it out and place it separately for the foreman to centrally repair and handle.

[0073] ③ When in use, always pay attention to the connection status of each component of the device to ensure that the screws are not loose, the magnet 6 is firmly fixed in the magnet positioning groove 10, and the profiling rubber strip 1 has not shifted or been damaged.

[0074] If any abnormal situation is found in the fixture during use, such as looseness, abnormal noise, unstable pressure, etc., immediately stop using it and conduct a comprehensive inspection and maintenance of the device. You can check whether the screws are loose, whether the magnet 6 has shifted, whether the profiling rubber strip 1 is damaged, etc., and repair or replace the components in time to ensure that the device can be used normally and safely.

[0075] The above is only the preferred implementation mode of the present utility model. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. A pressure-maintaining fixture for fitting a pressure-maintained product, characterized in that: include: The upper surface of the fixture body is used as an upper fixture surface, and the upper fixture surface is used to contact the non-pressure-maintaining surface of the pressure-maintained product; the lower surface of the fixture body is used as a lower fixture surface, and the lower fixture surface is used to contact the pressure-maintaining surface of the pressure-maintained product; The clamp body comprises a step surface and a hollow body connected to the step surface, wherein the hollow body is used to place the pressure-maintained product; the upper clamp surface of the clamp body, i.e., the bottom of the cavity, is provided with a rubber strip positioning groove, wherein the contoured rubber strip is fixed; A middle frame and a middle frame support point located on the middle frame are fixedly arranged on the lower clamp surface of the clamp body; the middle frame support point is used to fix the inside of the middle frame so that the middle frame cannot move forward, backward, left, right, up, or down in the pressure-maintaining clamp; A pressure-maintaining fixture outer frame is fixedly arranged on the outer periphery of the step surface of the fixture body, which is used to limit the pressure-maintained product; a plurality of magnet positioning grooves are arranged on the pressure-maintaining fixture outer frame, and magnets are fixedly installed in the magnet positioning grooves; The outer frame of the pressure-maintaining clamp is also provided with a plurality of pressure-maintaining clamp positioning grooves, and the pressure-maintaining clamp positioning grooves are provided with pressure-maintaining clamp positioning columns for positioning two adjacent pressure-maintaining clamps; a plurality of screw holes are evenly arranged on the step surface of the clamp body, and two adjacent pressure-maintaining clamps are used to be fixed by inserting the screw holes under the positioning cooperation of the pressure-maintaining clamp positioning columns; Product taking positions are provided on both sides of the outer frame of the pressure-maintaining fixture to facilitate personnel to take the middle frame from the product taking positions on both sides of the middle frame.

2. A pressure-maintaining fixture for bonding a pressure-maintained product according to claim 1, characterized in that: The contoured adhesive strip has the same shape and size as the back adhesive of the pressure-maintained product. The contoured adhesive strip includes a connected bottom adhesive and a curved adhesive. The bottom adhesive is used to bond the non-pressure-maintained surface of the pressure-maintained product, and the curved adhesive is used to bond the curved surfaces on both sides of the pressure-maintained product.

3. A pressure-maintaining fixture for bonding a pressure-maintained product according to claim 1, characterized in that: The contoured rubber strip is made of silicone with a hardness of 20-30 degrees. The compression ratio of the rubber strip is 0.5-0.7, and the pressure reaches 70-110N.

4. A pressure-maintaining fixture for bonding a pressure-maintained product according to claim 1, characterized in that: The magnetic pole directions of the magnets installed in two adjacent pressure-maintaining fixtures are kept consistent.

5. A pressure-maintaining fixture for bonding a pressure-maintained product according to claim 1, characterized in that: The magnet positioning groove is cylindrical with a diameter of 7.9 mm and a height of 5 mm.

6. A pressure-maintaining fixture for bonding a pressure-maintained product according to claim 1, characterized in that: The dimensions of the pressure-holding fixture positioning groove and the pressure-holding fixture positioning column are 8.2 mm in diameter and 4.5 mm in height.

Images