CN107234812A - Pressurize tool - Google Patents

Abstract

The present disclosure provides a pressure-holding jig, which includes a first jig and a second jig, the first jig can be assembled with the second jig, and the first jig and the second jig A storage space is formed between the second mating surfaces of the tool, and the storage space is used to accommodate a bonding assembly composed of at least two workpieces to maintain pressure on the bonding assembly; wherein, an elastic pad is also housed in the storage space, and the elastic pad It is located between at least one of the first matching surface and the second matching surface and the adhesive component, and the accommodation space is in interference fit with the elastic pad along the direction of the retaining force. The pressure-holding jig of the present disclosure can maintain the pressure of the bonded components, eliminating the dependence on professional lamination equipment, and because the preparation cost of a single pressure-holding jig is extremely lower than that of professional lamination equipment, it can be used at the same cost Prepare a large number of pressure-holding jigs and break through the limit of the number of professional pressing equipment, thus helping to improve the pressure-holding efficiency and production efficiency of bonded components.

Description

Pressure holding fixture

technical field

The present disclosure relates to the technical field of lamination equipment, in particular to a pressure-holding jig.

Background technique

In the related art, the battery cover of the mobile phone includes aluminum alloy stamping parts and plastic parts. When assembling the battery cover of a mobile phone, it is necessary to assemble the aluminum alloy stamping parts and plastic parts of the battery cover by dispensing glue, and then use the pressing equipment to keep the pressure on the aluminum alloy stamping parts and plastic parts until the glue is condensed, so as to obtain two components. Assembled battery cover.

However, it takes a certain amount of time to pressurize aluminum alloy stamping parts and plastic parts, and each battery cover needs to use a pressing device during the pressure-holding process. In the case of ensuring the pressure holding time of the battery cover, if the productivity needs to be increased, the number of pressing equipment needs to be increased, and the higher price of the pressing equipment will increase the production cost. Therefore, the use of pressing equipment to maintain pressure on the battery cover also limits the production capacity of the battery cover to a certain extent.

Contents of the invention

The disclosure provides a pressure-holding jig to solve the deficiencies in the related art.

According to a first aspect of the embodiments of the present disclosure, a pressure holding jig is provided. The pressure holding jig includes a first jig and a second jig, the first jig can be assembled with the second jig, and the first matching surface of the first jig is connected to the second jig. A storage space is formed between the second mating surfaces of the two jigs, and the storage space is used to accommodate a bonding assembly composed of at least two workpieces, so as to maintain pressure on the bonding assembly; wherein, in the storage space An elastic pad is also accommodated, and the elastic pad is located between at least one of the first mating surface and the second mating surface and the bonding assembly, and the accommodating space and the Interference fit between elastic pads.

Optionally, the bonding assembly includes an appearance surface facing at least one of the first mating surface and the second mating surface, and the elastic pad covers at least a part of the appearance surface.

Optionally, the pressure holding jig further includes a fixing device arranged on the first jig, and the fixing device is used to fix the bonding assembly on the first jig so that the bonding The components can be accommodated in the accommodation space; wherein, the accommodation space is arranged on the second jig.

Optionally, the pressure holding fixture further includes a fixing device disposed in the receiving space, and the fixing device is used to fix the bonding assembly in the receiving space.

Optionally, the fixing device includes at least two clamping pieces, and the at least two clamping pieces are respectively used to clamp at least one group of symmetrical sides of the bonding assembly.

Optionally, the clamping member includes a body part, the body part is provided with a deformation part and a clamping part matched with the bonding assembly, and the clamping part is connected to the body part through the deformation part.

Optionally, the fixing device further includes a limiting structure, and the limiting structure is used for positioning the placement position of the bonding assembly.

Optionally, the limiting structure includes a first limiting part, and the first limiting part is used for limiting at least one group of symmetrical sides of the bonding assembly.

Optionally, the limiting structure further includes a second limiting part, and the second limiting part is used to cooperate with the mounting hole of the bonding assembly.

Optionally, when the bonding component is a backplane structure of an electronic device, the installation hole is a camera hole and/or a fingerprint hole on the backplane structure.

Optionally, the pressure-holding jig also includes a positioning post and a positioning hole used in conjunction; the positioning post is arranged on any one of the first mating surface and the second mating surface, and the positioning hole is located on the other One structure.

Optionally, the pressure holding fixture further includes a buckle and a slot structure; the buckle is arranged on any structure of the first mating surface and the second mating surface, and the snap groove structure is located on the other Structurally, the buckle and the slot structure cooperate to connect the first jig and the second jig.

According to a second aspect of the embodiments of the present disclosure, a pressure holding jig is provided. The pressure holding jig includes a first jig and a second jig, the first jig can be assembled with the second jig, and the first matching surface of the first jig is connected to the second jig. A storage space is formed between the second mating surfaces of the jig, and an elastic pad is provided in the storage space, and the storage space is used to accommodate a bonding assembly composed of at least two workpieces, so as to protect the bonding assembly. pressure; wherein, the interference fit between the adhesive component and the elastic pad is along the direction of the retaining force.

In the present disclosure, by adopting the pressure-holding jig formed by the combination of the first jig and the second jig to maintain the pressure of the bonding assembly, the dependence on professional lamination equipment can be eliminated, and because the preparation cost of a single pressure-holding jig is relatively Professional pressing equipment is extremely cheap, and a large number of pressure holding fixtures can be prepared at the same cost, breaking through the limit of the number of professional pressing equipment, thereby helping to improve the pressure holding efficiency and production efficiency of bonded components. At the same time, by using the elastic pad to keep the pressure of the bonded component, the bonded component can be subjected to a balanced pressure holding force, and the appearance surface of the bonded component can be prevented from being scratched by the pressure-holding jig.

Description of drawings

Fig. 1 is a schematic diagram of a first jig in which a containment space is located in a pressure holding jig according to an exemplary embodiment of the present disclosure.

Fig. 2 is a schematic diagram showing a holding space on a first jig and a second jig in a pressure holding jig according to an exemplary embodiment of the present disclosure.

Fig. 3 is an exploded view of a pressure-holding jig and bonding assembly shown in an exemplary embodiment of the present disclosure.

Fig. 4 is a schematic structural view of a clamping part in a pressure holding fixture according to an exemplary embodiment of the present disclosure.

Fig. 5 is a schematic structural view of a first jig in a pressure holding jig shown in an exemplary embodiment of the present disclosure.

Fig. 6 is a schematic structural view of a second jig in a pressure holding jig shown in an exemplary embodiment of the present disclosure.

Fig. 7 is a schematic structural view of the back of the first jig in a pressure holding jig shown in an exemplary embodiment of the present disclosure.

Fig. 8 is a schematic structural view of the back of the second jig in a pressure holding jig shown in an exemplary embodiment of the present disclosure.

Fig. 9 is a schematic structural view of a pressure holding fixture according to another exemplary embodiment of the present disclosure.

detailed description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.

The terminology used in the present disclosure is for the purpose of describing particular embodiments only, and is not intended to limit the present disclosure. As used in this disclosure and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term "and/or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used in the present disclosure to describe various information, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of the present disclosure, first information may also be called second information, and similarly, second information may also be called first information. Depending on the context, the word "if" as used herein may be interpreted as "at" or "when" or "in response to a determination."

FIG. 1 is a schematic diagram of a holding space formed on a first jig in a pressure holding jig according to an embodiment of the present disclosure. Please refer to FIG. 1 , the pressure maintaining jig includes a first jig 1 and a second jig 2 , and the first jig 1 and the second jig 2 can be assembled together. The first fixture 1 includes a first mating surface 11, and the second fixture 2 includes a second mating surface 21. When the first fixture 1 and the second fixture 2 are mated and assembled, the first mating surface 11 and the second mating surface The faces 21 are opposite to each other. Wherein, the second jig 2 is further provided with a receiving space 22 , and the receiving space 22 is formed on the second mating surface 21 . The bonding assembly and the elastic pad are accommodated in the accommodation space 22, and the pressure maintaining fixture can maintain the pressure of the bonding assembly. As a modified embodiment of this embodiment, the receiving space 22 may also be provided on the first jig 1 and formed on the first mating surface 11 .

FIG. 2 is a schematic diagram of a holding space formed on a first jig and a second jig in a pressure holding jig according to an embodiment of the present disclosure. Please refer to FIG. 2 , the pressure holding jig includes a first jig 1a and a second jig 2a, and the first jig 1a can be assembled with the second jig 2a. The first fixture 1a includes a first mating surface 11a, and the second fixture 2a includes a second mating surface 21a. When the first fixture 1a and the second fixture 2a are mated and assembled, the first mating surface 11a and the second mating surface 11a The surfaces 21a are opposed to each other. Wherein, the second fixture 2a is further provided with a receiving space 22a, and the receiving space 22a is formed on the second mating surface 21a. The bonding assembly and the elastic pad are accommodated in the accommodation space 22a, and the pressure maintaining jig can maintain the pressure of the bonding assembly.

The difference between the pressure holding fixtures in the above embodiments is only that the location of the receiving space is different, but the pressure holding principle is the same, and both can achieve the pressure holding effect on the bonded components. For ease of understanding, the technical solution of the present disclosure will be described in detail below mainly for the embodiment shown in FIG. 1 .

Fig. 3 is an exploded view of a pressure-holding jig and an adhesive assembly according to an embodiment of the present disclosure. As shown in FIG. 3 , assuming that the adhesive assembly 3 is composed of a first workpiece 31 and a second workpiece 32, when the adhesive assembly 3 is kept under pressure, the first workpiece 31 needs to be placed on the second workpiece 32 to be glued together, and then Put the bonded first workpiece 31 and second workpiece 32 into the accommodation space 32; the first workpiece 31 is located on the first jig 1 side of the pressure holding jig, and the second workpiece 32 is located on the second jig 2 side. Certainly, in other embodiments, the bonding assembly 3 may also be composed of three or more workpieces, which is not limited in the present disclosure.

In this embodiment, the adhesive component 3 may be a casing of an electronic device, such as a cell phone battery cover, and the present disclosure is not limited thereto. The bonding assembly 3 is accommodated together with the elastic pad 23 in the accommodation space 22 of the pressure holding fixture, and the accommodation space 22 is in interference fit with the elastic pad 23 along the direction of the holding force. As shown in Figure 3, on the marked X direction, the size of the accommodating space 22 is smaller than the sum of the dimensions of the adhesive assembly 3 and the elastic pad 23, when the adhesive assembly 3 and the elastic pad 23 are accommodated in the accommodating space 22 , because the receiving space 22 is in interference fit with the elastic pad 23 , the pressure holding fixture can make the elastic pad 23 elastically deform, and give the bonding assembly 3 a holding pressure. In this embodiment, the elastic pad 23 can be made of silica gel, unglued glue or the like, and the present disclosure is not limited thereto.

It can be seen from the above-mentioned embodiments that the present disclosure can eliminate the dependence on professional lamination equipment by adopting the pressure-holding jig formed by combining the first jig and the second jig to maintain the pressure of the bonding assembly, and because a single pressure-holding jig Compared with professional lamination equipment, the preparation cost of the jig is extremely low, and a large number of pressure holding jigs can be prepared at the same cost, breaking through the limit of the number of professional lamination equipment, thereby helping to improve the pressure holding efficiency of bonded components and production efficiency. And, by arranging the elastic pad 23, on the one hand, the elastic pad 23 can achieve better contact with the adhesive assembly 3, and on the other hand, the adhesive assembly 3 can be subjected to a balanced holding pressure, ensuring that the first workpiece 31 is in contact with the second workpiece 31. Each bonding area between workpieces 32 achieves a firm bond.

At the same time, due to the limitation of the production process, there is often a certain manufacturing error between the actual size of the holding space 22 of the pressure holding fixture and the design size, and the elastic pad 23 can use its elastic characteristics to provide proper support and cushioning to make up for it. Due to the manufacturing error of the receiving space 22 , the pressure maintaining function can be ensured when the receiving space 22 is too large, and damage to the bonding assembly 3 can be avoided when the receiving space 22 is too small.

In addition, by covering the position where the bonding assembly 3 is in contact with the pressure-holding jig, the elastic pad 23 can cover the appearance surface of the bonding assembly 3 in a larger area, thereby preventing the pressure-holding jig from Scratch the exterior surface of the bonding assembly 3 . Taking FIG. 3 as an example, the appearance surface 322 of the second workpiece 32 is placed facing the second jig 2 , and the appearance surface 322 is easily scratched when in contact with the second jig 2 during pressure holding. The elastic pad 23 is disposed on the appearance surface 322 covering the second workpiece 32 so that the appearance surface 322 cannot be in contact with the second jig 2 , so as to prevent the bonding assembly 3 from being scratched. In other embodiments, the appearance surface can also be the surface of the first workpiece 31, the surface is facing the first jig 1, and the elastic pad 23 can be arranged on the surface of the first workpiece 31 and the first jig 1 jig. , so that the elastic pad 23 covers the surface of the first workpiece 31 . Or, the appearance surface that the surface of the first workpiece 31 and the surface of the second workpiece 32 forms together, the surface of the first workpiece 31 and the surface of the second workpiece 32 are respectively towards the first jig 1 and the second jig 3, and the elastic The pads 23 only need to cover the surfaces of the first workpiece 31 and the second workpiece 32 respectively.

In the above embodiment, the pressure maintaining fixture may further include a fixing device, and the fixing device includes at least two clamping parts 12, and the clamping parts 12 are used for fixing and positioning the bonding assembly 3. As shown in FIG. 3 , the second jig 2 is also provided with an avoidance structure 27 that cooperates with the clamping member 12 . Top fit.

Fig. 4 is a schematic structural diagram of a clamping part in a pressure holding fixture according to an embodiment of the present disclosure. As shown in FIG. 4 , the clamping member 12 includes a body portion 121, on which a deformation portion 122 and a clamping portion 123 for clamping the bonding assembly 122 are provided, and the clamping portion 123 passes through the deformation portion 122 and the clamping portion 123. The body part 121 is connected. In this embodiment, the clamping member 12 is disposed on the first jig 1 . Wherein, the body part 121 is arranged on the first mating surface 11 and is inclined toward the bonding assembly 3, the deformation part 122 is an arc-shaped structure and serves as the top of the clamping part 12, and the deformation part 122 can be deformed so that the clamping part 123 clamps the bonding assembly 3 .

FIG. 5 is a schematic structural diagram of a first jig in a pressure holding jig shown in an embodiment of the present disclosure. Please refer to FIG. 5 , the clamping member 12 is disposed on the first jig 1 and can fix the bonding assembly 3 on the first jig 1 to position the bonding assembly 3 . In this embodiment, six clamping parts 12 are arranged on the first mating surface 11 of the first jig 1, among which three clamping parts 12 are used to clamp one side 311 of the bonding assembly 3, and the other three A clamping member 12 is used to clamp the other side 312 of the bonding assembly 3 . Of course, other numbers of clamping members 12 may also be provided, as long as the positioning of the bonding assembly 3 is satisfied, and the present disclosure is not limited thereto. In other embodiments, the clamping member 12 can also be disposed in the receiving space 22 to directly fix the bonding assembly 3 in the receiving space 33 .

Further, the clamping member 12 is an elastic member that can be elastically deformed, and the clamping member 12 can provide a clamping force in a direction perpendicular to the holding force X direction (Y direction as shown in FIG. 3 ), preventing the second The workpiece 32 is deformed. It can be known from the above embodiments that the holding pressure X direction is perpendicular to the axial direction of the first workpiece 31. During the holding pressure process, the second workpiece 32 will be deformed by the holding pressure. The jointed first workpiece 31 and the second workpiece 31 locally produce gaps or the like. In this embodiment, the clamping parts 12 are arranged at both ends of the first workpiece 31, and the clamping parts 123 of the plurality of clamping parts 12 respectively clamp the two sides 311, 312 of the first workpiece, which can overcome the retaining force. The problem of deforming the first workpiece 31 can be eliminated, thereby improving the pressure-holding quality of the pressure-holding jig.

In order to better locate the placement position of the bonding assembly 3 , the fixing device further includes a limiting structure for positioning the placement position of the bonding assembly 3 .

In an embodiment, as shown in FIG. 5 , the limiting structure may include a first limiting portion 13 for limiting at least one group of symmetrical sides of the bonding assembly 3 . For example, in the embodiment, the first limiting part 13 is arranged on the first mating surface 11, and can be used in conjunction with the clamping part 12; the first limiting part 13 and the clamping part 12 are respectively arranged on one side of the bonding assembly 3 Next to the symmetrical side of the group. When the adhesive 3 is accommodated in the accommodating space 22 , the adhesive assembly 3 will not move under the action of the clamping member 12 and the first stopper 13 , which ensures the pressure-holding effect of the adhesive assembly 3 .

In another embodiment, the limiting structure may further include a second limiting portion 14 for cooperating with the mounting hole 321 of the bonding assembly 3 . As shown in Figure 5, the second limiting part 14 is a cylindrical structure, which is arranged on the first mating surface 11. When the bonding assembly 3 is a backboard structure of an electronic device, the mounting hole 321 is on the backboard structure. The camera hole and/or the fingerprint hole, the second limiting portion 14 can cooperate with the mounting hole 321 to position the back panel structure. The second limiting portion 14 can be used as a positioning structure for placing the bonding assembly 3 .

Please continue to refer to FIG. 5 , the first jig 1 is also provided with a housing portion 18 , which is recessed on the first mating surface 11 , and its four sides are respectively close to the clamping member 12 and the first limiting portion 13 . The above-mentioned second limiting portion 14 can be disposed in the accommodating portion 18 and extend toward the first mating surface 11 . The accommodating portion 18 is also provided with reinforcing ribs 17 for increasing the strength of the first jig 1 .

Fig. 6 is a schematic structural diagram of a second jig in a pressure holding jig shown in an embodiment of the present disclosure. Referring to FIG. 6 , the second jig 2 is provided with an escape groove 24 corresponding to the first limiting portion 13 , and the escape groove 24 is located on the second mating surface 22 of the second jig 2 .

In the above embodiments, the pressure holding jig further includes a buckle 26 and a slot structure 16, and the buckle 26 and the slot structure 16 cooperate to connect the first jig 1 and the second jig 2, so that the first jig The tool 1 is fastened with the second jig 2 . In the embodiment shown in FIG. 5 and FIG. 6 , the slot structure 16 may be disposed on the first mating surface 11 , and the buckle 26 may be disposed on the second mating surface 21 . In other embodiments, the slot structure 16 may be disposed on the second mating surface 21 , and the buckle 26 may be disposed on the first mating surface 11 . The present disclosure does not limit the specific positions of the buckle 26 and the slot structure 16 .

Further, as shown in FIG. 5 and FIG. 6 , the pressure retaining jig also includes a positioning post 15 and a positioning hole 25 used in conjunction. The positioning posts 15 are arranged at the four corners of the first mating surface 11, and correspondingly, the positioning holes 25 are arranged at the four corners of the second mating surface 21. When the first jig 1 and the second jig 2 are assembled, the positioning holes 25 are Placed in the positioning hole 25. The arrangement of the positioning post 15 and the positioning hole 25 facilitates the assembly of the first jig 1 and the second jig 2 . In other embodiments, the positioning post 15 is disposed on the second mating surface 21 , and the positioning hole 25 is disposed on the first mating surface 11 , which is not limited in the present disclosure.

FIG. 7 is a schematic diagram of the back structure of the first fixture 1 , and FIG. 8 is a schematic diagram of the structure of the second fixture 2 . Please refer to Fig. 7-8, ribs 4 are provided on the back of the first jig 1 and the second jig 2, the use of the ribs 4 can reduce the materials used for the first jig 1 and the second jig 2, and does not Weaken the strength of the first jig 1 and the second jig 2 . The first jig 1 and the second jig 2 can be metal parts made by casting, or plastic parts made by injection molding process. Using the first jig 1 and the second jig 2 of plastic parts can produce the pressure holding jig at a very low cost, and can prepare a large number of pressure holding jigs at the same cost, breaking through the quantity limit of professional pressing equipment, This helps to improve the pressure holding efficiency and production efficiency of the bonded components.

It can be seen from the above-mentioned embodiments that the present disclosure can eliminate the dependence on professional lamination equipment by adopting the pressure-holding jig formed by combining the first jig and the second jig to maintain the pressure of the bonding assembly, and because a single pressure-holding jig Compared with professional lamination equipment, the preparation cost of the jig is extremely low, and a large number of pressure holding jigs can be prepared at the same cost, breaking through the limit of the number of professional lamination equipment, thereby helping to improve the pressure holding efficiency of bonded components and production efficiency. The elastic pad is used to maintain the pressure of the bonded component, so that the bonded component can receive a balanced pressure, and it can also avoid scratching the appearance surface of the bonded component by the pressure-holding jig.

The present disclosure also provides another pressure maintaining jig, which differs from the above-mentioned embodiments in that an elastic pad is provided inside the pressure maintaining jig, and the elastic pad is accommodated in the accommodation space. The elastic pad can be made of silica gel, The present disclosure does not limit the unglue or other elastic components, and other structures are the same as the pressure-holding jig in the previous embodiment. As shown in FIG. 9 , FIG. 9 is a schematic structural view of a pressure holding fixture according to another exemplary embodiment of the present disclosure. The pressure holding jig includes a first jig 1 and a second jig 2, the first jig 1 can be assembled with the second jig 2, and on the first mating surface of the first jig 1 11 and the second mating surface 21 of the second jig 2 form a storage space 22, and an elastic pad 23 is arranged in the storage space 22, and the storage space 22 is used to accommodate a sticky pad composed of at least two workpieces. The connecting component 3 is used to maintain the pressure on the bonding component 3; wherein, the bonding component 3 and the elastic pad 23 are in interference fit along the direction of the holding force.

The above descriptions are only preferred embodiments of the present disclosure, and are not intended to limit the present disclosure. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present disclosure shall be included in the present disclosure within the scope of protection.

Claims (13)

1. A pressure-holding jig, characterized in that it includes a first jig and a second jig, the first jig can be assembled with the second jig, and the first jig can be assembled on the first jig An accommodating space is formed between the first mating surface and the second mating surface of the second jig, and the accommodating space is used for accommodating a bonding assembly composed of at least two workpieces, so as to maintain pressure on the bonding assembly ; Wherein, an elastic pad is also accommodated in the receiving space, and the elastic pad is located between at least one of the first mating surface and the second mating surface and the bonding assembly, along the holding force direction The accommodating space is in interference fit with the elastic pad. 2. The pressure holding jig according to claim 1, wherein the bonding assembly includes an appearance surface facing at least one of the first mating surface and the second mating surface, and the elastic pad Covering at least a portion of the appearance surface. 3. The pressure maintaining jig according to claim 1, further comprising a fixing device arranged on the first jig, the fixing device is used to fix the bonding assembly on the second On a jig so that the adhesive component can be accommodated in the receiving space; wherein, the accommodating space is arranged on the second jig. 4. The pressure maintaining jig according to claim 1, further comprising a fixing device arranged in the receiving space, the fixing device is used to fix the bonding assembly in the receiving space . 5. The pressure maintaining fixture according to claim 3 or 4, wherein the fixing device comprises at least two clamping pieces, and the at least two clamping pieces are respectively used to clamp the bonding assembly At least one set of symmetric sides of . 6. The pressure maintaining jig according to claim 5, wherein the clamping member includes a body portion, and the body portion is provided with a deformation portion and a clamping portion that cooperates with the bonding assembly, so that The clamping part is connected with the main body part through the deformation part. 7 . The pressure holding fixture according to claim 3 or 4 , wherein the fixing device further comprises a limiting structure, and the limiting structure is used for positioning the placement position of the bonding assembly. 8 . 8. The pressure holding jig according to claim 7, wherein the limiting structure comprises a first limiting part, and the first limiting part is used to limit at least one group of the bonding components. Symmetrical sides. 9. The pressure holding jig according to claim 8, wherein the limiting structure further comprises a second limiting part, and the second limiting part is used to cooperate with the mounting hole of the bonding assembly . 10. The pressure holding fixture according to claim 9, wherein when the adhesive component is a backplane structure of an electronic device, the installation hole is a camera hole and/or a hole on the backplane structure Fingerprint hole. 11. The pressure maintaining fixture according to claim 1, further comprising a positioning post and a positioning hole used in conjunction; the positioning post is arranged on any of the first mating surface and the second mating surface On one structure, the positioning hole is located on another structure. 12. The pressure maintaining fixture according to claim 1, further comprising a buckle and a groove structure; the buckle is arranged on any one of the first mating surface and the second mating surface On the top, the slot structure is located on another structure, and the buckle and the slot structure cooperate to connect the first jig and the second jig. 13. A pressure-holding jig, characterized in that it includes a first jig and a second jig, the first jig can be assembled with the second jig, and A storage space is formed between the first mating surface and the second mating surface of the second jig, an elastic pad is provided in the housing space, and the housing space is used to accommodate a bonding assembly composed of at least two workpieces, In order to maintain pressure on the adhesive component; wherein, the elastic pad is interference fit between the adhesive component and the elastic pad along the direction of the maintaining force.