FPC assembly jig

Abstract

The utility model discloses an FPC assembly jig, which comprises a bearing seat, wherein a pressure maintaining seat for placing a display module is fixed at the top of the bearing seat; the supporting arm is fixed to one side of the top of the bearing seat, and an electric push rod pressure maintaining head is fixed to one side of the supporting arm and connected to the output end of the electric push rod; the display module comprises a display module upper cover plate and a display module screen body which are assembled in a mutually attached mode. According to the FPC assembling jig provided by the utility model, the electric push rod is started to enable the pressure maintaining head to be tightly pressed on the FPC on the display module, the pressure maintaining head is tightly pressed to be subjected to pressure maintaining with the corresponding pressure-sensitive double-sided adhesive I below the pressure maintaining head, and the viscosity of the pressure-sensitive double-sided adhesive is activated; according to the display module, the uniformity of force during attaching is guaranteed, the attaching firmness of the FPC is effectively improved, and meanwhile, the synchronous pressure maintaining operation of a plurality of display modules can be achieved in cooperation with the arrangement of a plurality of pressure maintaining grooves.

Description

Technical Field

[0001] The utility model relates to the technical field of display module, in particular to an FPC assembly jig. Background Art

[0002] The LED display unit board, also known as the LED display module or simply the unit board, is the main component unit of the LED display, which is composed of LED light-emitting diodes, drive circuits, drive ICs and plastic kits. In the LED display industry, the LED unit boards are now divided into two categories. The indoor unit board is generally called surface mount (three-in-one surface mount) in the industry; the outdoor and semi-outdoor ones are generally called modules. The characteristics of indoor surface mount: high image clarity, extremely rich colors, but the disadvantage is that the price is relatively high; the characteristics of outdoor and semi-outdoor module unit boards: high brightness, waterproof, rich colors, but the disadvantage is that technical guidance is required for installation.

[0003] With the progress of technology and the improvement of living standards, intelligent wearable devices such as watches / bracelets are becoming more and more common, and users' requirements for product quality are also getting higher and higher. There will be the assembly of display modules on them. Usually, in the actual production process of the display module, the FPC on it needs to be bent and attached to the back of the display screen. However, it is found in the actual application process that due to manual attachment, the attachment force of each product is not easy, and there may be problems with attachment cavities in some products, which easily causes the problem that the FPC will still warp after attachment. Therefore, an FPC assembly jig is proposed. Summary of the Utility Model

[0004] Based on this, in order to solve the above technical problems, it is necessary to provide an FPC assembly jig. By starting the electric push rod, the pressure maintaining head is pressed tightly on the FPC on the display module, and it is pressed against the corresponding pressure-sensitive double-sided adhesive below for pressure maintaining, activating the viscosity of the pressure-sensitive double-sided adhesive, effectively improving the adhesion firmness of the FPC.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] An FPC assembly jig, comprising:

[0007] A bearing seat, on the top of which a pressure maintaining seat for placing the display module is fixed;

[0008] A support arm, which is fixed on one side of the top of the bearing seat, and an electric push rod is fixed on one side of the support arm;

[0009] A pressure maintaining head, which is connected to the output end of the electric push rod;

[0010] The display module includes a display module upper cover plate and a display module screen body that are mutually attached and assembled;

[0011] Among them, a BTB connector and a display module FPC are further provided on the surface of the display module screen body, and a first pasting area is also provided on the display module screen body;

[0012] After being bent, the display module FPC is pasted on the first pasting area through a first pressure-sensitive double-sided adhesive;

[0013] A second pasting area is further provided on the display module screen body, and the second pasting area is partially pasted with the BTB connector through a second pressure-sensitive double-sided adhesive.

[0014] Furthermore, a pressure-holding groove for placing the display module is formed on the pressure-holding seat, and a limiting post is arranged in the pressure-holding groove, and the limiting post is located on the front and rear sides of the display module.

[0015] Furthermore, a limiting plate is further arranged in the pressure-holding groove, and a plurality of the limiting plates are distributed on the left and right sides of the display module;

[0016] The limiting plate and the limiting post together form a limiting space for placing and limiting the display module.

[0017] Furthermore, the limiting plate includes a side plate fixed to the bottom wall of the pressure-holding groove and an arc-shaped top plate fixed to the top of the side plate, and an introduction platform extends from the arc-shaped top plate in a direction away from the display module.

[0018] Furthermore, a finger groove communicated with the pressure-holding groove is further arranged on the pressure-holding seat near the pressure-holding groove.

[0019] Furthermore, there are a plurality of the pressure-holding grooves, and the plurality of pressure-holding grooves are equidistantly distributed on the pressure-holding seat.

[0020] Furthermore, a pressure head is fixed to the bottom of the pressure-holding head corresponding to the pressure-holding groove, and a first foam and a second foam are respectively fixed to the pressure head corresponding to the first pasting area and the second pasting area on the display module.

[0021] Furthermore, an inner rod is fixed at the center of the top of the pressure-holding seat, an outer rod is slidably arranged in the inner rod, and one end of the outer rod is fixed at the center of the pressure-holding head.

[0022] Furthermore, when the pressure-holding head presses the first foam and the second foam tightly on the display module for pressure-holding, the pressure-holding head abuts against the top end of the inner rod.

[0023] Furthermore, there are four pressure-holding grooves.

[0024] Compared with the prior art, the utility model has the following beneficial effects:

[0025] The FPC assembly jig provided by the utility model presses the pressure-holding head against the FPC on the display module by starting the electric push rod, presses it against the corresponding pressure-sensitive double-sided adhesive 1 below for pressure-holding, activates the adhesiveness of the pressure-sensitive double-sided adhesive 1. Compared with the traditional operation of only manually pressing and attaching, it ensures the uniformity of the force during attachment, effectively improves the adhesion firmness of the FPC of the display module. At the same time, with the setting of multiple pressure-holding grooves, synchronous pressure-holding operations for multiple display modules can be realized;

[0026] Through the cooperation of the second pasting area and the pressure-sensitive double-sided adhesive 2, when pressure-holding the FPC of the display module, the pressure-holding head can synchronously pressure-hold the pressure-sensitive double-sided adhesive 2 through the second foam, thus realizing more effective production and use of the display module. Description of the Drawings

[0027] Figure 1 It is a schematic structural diagram of the FPC assembly jig provided by the utility model;

[0028] Figure 2 It is a schematic structural diagram of the display module of the FPC assembly jig provided by the utility model;

[0029] Figure 3 It is a partial schematic structural diagram of the display module of the FPC assembly jig provided by the utility model;

[0030] Figure 4 It is a schematic structural diagram of the second pasting area of the FPC assembly jig provided by the utility model;

[0031] Figure 5 It is a schematic structural diagram of the pressure-holding seat of the FPC assembly jig provided by the utility model;

[0032] Figure 6 It is the Figure 5 Enlarged schematic structural diagram at position A in the FPC assembly jig provided by the utility model;

[0033] Figure 7 It is a schematic structural diagram of the pressure-holding head of the FPC assembly jig provided by the utility model;

[0034] Figure 8 It is a schematic structural diagram of the pressure-holding state of the pressure-holding seat of the FPC assembly jig provided by the utility model;

[0035] Figure 9 It is a schematic top view structural diagram of the pressure-holding seat of the FPC assembly jig provided by the utility model.

[0036] The markings in the figure are explained as follows:

[0037] Carrier seat 1, display module 11, support arm 12, electric push rod 13, pressure-sensitive double-sided adhesive 1 15;

[0038] The upper cover plate 110 of the display module, the display module screen body 111, the BTB connector 112, the display module FPC 113, the first pasting area 114, the second pasting area 115, and the pressure-sensitive double-sided adhesive 116;

[0039] The pressure-holding seat 2;

[0040] The pressure-holding groove 21, the limit post 22, the limit plate 23, the limit space 24, the finger groove 25, the inner rod 26, and the outer rod 27;

[0041] The side plate 230, the arc-shaped top plate 231, and the guiding platform 232;

[0042] The pressure-holding head 3, the pressing head 31, the first piece of foam 32, and the second piece of foam 33. Specific embodiments

[0043] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0044] As described in the background art, usually, the display module needs to be bent and attached to the back of the display screen during the actual production process. However, it is found in the actual application process that due to manual attachment, the attachment force of each product is not easy to control, and there may be problems such as attachment cavities in some products, which easily cause the problem of FPC warping.

[0045] To solve this technical problem, the present invention provides an FPC assembly fixture, which is applied to the display module.

[0046] Specifically, please refer to Figures 1-9 , the FPC assembly fixture specifically includes:

[0047] The carrier seat 1, and a pressure-holding seat 2 for placing the display module 11 is fixed on the top of the carrier seat 1;

[0048] The support arm 12, which is fixed on one side of the top of the carrier seat 1, and an electric push rod 13 is fixed on one side of the support arm 12;

[0049] The pressure-holding head 3, which is connected to the output end of the electric push rod 13;

[0050] The display module 11 includes a display module upper cover plate 110 and a display module screen body 111 that are fitted and assembled with each other;

[0051] Among them, a BTB connector 112 and a display module FPC 113 are further provided on the surface of the display module screen body 111, and a first pasting area 114 is also provided on the display module screen body 111;

[0052] After being bent, the display module FPC 113 is pasted on the first pasting area 114 through a pressure-sensitive double-sided adhesive 15;

[0053] A second pasting area 115 is also provided on the display module screen body 111, and the second pasting area 115 is partially pasted with the BTB connector 112 through a pressure-sensitive double-sided adhesive 116.

[0054] For the FPC assembly jig provided by the present utility model, by starting the electric push rod 13, the pressure maintaining head 3 is pressed tightly on the FPC on the display module 11, and the pressure is maintained by pressing it against the corresponding pressure-sensitive double-sided adhesive 15 below, activating the viscosity of the pressure-sensitive double-sided adhesive 15. Compared with the traditional operation of only manually pressing and attaching, the uniformity of the force during attachment is ensured, effectively improving the pasting firmness of the display module FPC 113. At the same time, in cooperation with the setting of multiple pressure maintaining grooves 21, the synchronous pressure maintaining operation of multiple display modules 11 can be realized.

[0055] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

[0056] It should be noted that, without conflict, the embodiments in the present utility model and the features and technical solutions in the embodiments can be combined with each other.

[0057] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0058] Please refer to Figures 1-9 , an FPC assembly jig, a carrier seat 1, on the top of the carrier seat 1, a pressure maintaining seat 2 for placing the display module 11 is fixed; a support arm 12, which is fixed on one side of the top of the carrier seat 1, and an electric push rod 13 is fixed on one side of the support arm 12; a pressure maintaining head 3, which is connected to the output end of the electric push rod 13;

[0059] The display module 11 includes a display module upper cover plate 110 and a display module screen body 111 that are mutually attached and assembled. Among them, a BTB connector 112 and a display module FPC 113 are provided on the surface of the display module screen body 111, and a first pasting area 114 is also provided on the display module screen body 111;

[0060] After being bent, the display module FPC 113 is pasted on the first pasting area 114 through a pressure-sensitive double-sided adhesive 15, asFigure 3 As shown, the display module FPC113 is in a truncated state at this time (while Figure 2 the described display module FPC113 is in a complete state), and the truncated display module FPC113 will expose the inner paste area -114 to the outside. The pressure-sensitive double-sided adhesive -15 on the right side is adapted to the shape of the paste area -114. During assembly, the pressure-sensitive double-sided adhesive -15 is first pasted on the paste area -114, and then the display module FPC113 is flipped to attach it to the surface of the pressure-sensitive double-sided adhesive -15, finally forming as Figure 2 the described state;

[0061] In the conventional method, manual pressing is used to press the display module FPC113, so that it forms extrusion with the inner pressure-sensitive double-sided adhesive -15 to achieve pasting with the paste area -114. However, this pasting method is likely to cause a pasting gap between the pressure-sensitive double-sided adhesive -15 and the outer paste area -114 and the display module FPC113, resulting in the display module FPC113 warping during subsequent applications, affecting subsequent assembly and use. Therefore, in this embodiment, the pressure-sensitive double-sided adhesive -15 is pressure-maintained to activate the viscosity of the pressure-sensitive double-sided adhesive -15, specifically as follows;

[0062] A pressure-maintaining groove 21 for placing the display module 11 is provided on the pressure-maintaining seat 2. A limiting post 22 is provided in the pressure-maintaining groove 21, and the limiting post 22 is located on the front and rear sides of the display module 11;

[0063] A limiting plate 23 is also provided in the pressure-maintaining groove 21, and a plurality of limiting plates 23 are distributed on the left and right sides of the display module 11;

[0064] The limiting plate 23 and the limiting post 22 together form a limiting space 24 for placing and limiting the display module 11;

[0065] When pressure-maintaining the pressure-sensitive double-sided adhesive -15, the display module 11 is placed in the pressure-maintaining groove 21, and then the electric push rod 13 is started to drive the pressure-maintaining head 3 to move towards the pressure-maintaining seat 2 with its output end, so that the pressure-maintaining head 3 presses on the display module in the pressure-maintaining seat 2, thereby forming pressure-maintaining for the display module FPC113 to activate the viscosity of the pressure-sensitive double-sided adhesive, ensuring the bonding strength between the pressure-sensitive double-sided adhesive -15 and the outer display module FPC113 and the display module screen body 111, and avoiding the generation of pasting gaps;

[0066] A paste area two 115 is also provided on the display module screen body 111. The paste area two 115 is partially pasted with the BTB connector 112 through the pressure-sensitive double-sided adhesive two 116. During assembly, the pressure-sensitive double-sided adhesive two 116 is first pasted on the paste area two 115, and then the BTB connector 112 is partially pasted on the surface of the pressure-sensitive double-sided adhesive two 116 to form as Figure 2The state shown;

[0067] At this place, the pressure - sensitive double - sided adhesive II 116 is also only pressed manually during conventional pasting to achieve pasting with the pasting area II 115. With the setting of the above - mentioned pressure - maintaining head 3, when maintaining pressure on the pressure - sensitive double - sided adhesive I 15, the pressure - maintaining of the pressure - sensitive double - sided adhesive II 116 is synchronously achieved, further improving the subsequent stable assembly and use of the display module 11.

[0068] The FPC assembly fixture provided in Embodiment 1 is further optimized. Specifically, as Figure 6 shown, the limiting plate 23 includes a side plate 230 fixed to the bottom wall of the pressure - maintaining groove 21 and an arc - shaped top plate 231 fixed to the top of the side plate 230. The arc - shaped top plate 231 extends towards the direction away from the display module 11 to form a guiding platform 232.

[0069] Before maintaining pressure on the display module 11, it is necessary to place the display module 11 into the pressure - maintaining groove 21. After the display module 11 is placed into the pressure - maintaining groove 21, the limiting posts 22 can limit the front and rear ends of the display module 11, and the limiting plate 23 can limit the left and right ends of the display module 11, which ensures the position accuracy of the display module 11 after being placed into the pressure - maintaining groove 21 to meet the accurate position pressure - maintaining of the subsequent pressure - maintaining head 3.

[0070] When the display module 11 is being placed, the limiting plate 23 can form a guide for the display module 11 through the guiding platform 232 thereon, which is beneficial for its better placement. After the display module 11 is completely placed, the left and right sides of the placed display module 11 will contact the side plate 230 on the limiting plate 23 to form a limiting effect.

[0071] As a further optimization of this embodiment: A finger groove 25 is also provided near the pressure - maintaining seat 2 and is connected to it. Through the setting of the finger groove 25, it is convenient not only for placing the display module 11 into the pressure - maintaining groove 2, but also for taking it out of the pressure - maintaining groove 21 after the pressure - maintaining is completed. As Figure 5 shown, the finger groove 25 is located between the two limiting plates 23, so it will not affect its limiting effect on the display module 11.

[0072] As Figure 5 shown, as a further optimization of this embodiment: There are multiple pressure - maintaining grooves 21, and the multiple pressure - maintaining grooves 21 are equidistantly distributed on the pressure - maintaining seat 2;

[0073] The number of pressure - maintaining grooves 21 in this embodiment is four. Through the setting of multiple pressure - maintaining grooves 21, when a single pressure - maintaining head 3 presses down for pressure - maintaining, the synchronous pressure - maintaining operation of multiple display modules 11 in multiple pressure - maintaining grooves 21 can be achieved, improving the efficiency of pressure - maintaining.

[0074] Further optimize the FPC assembly jig provided in Embodiment 1 or 2. For example, Figures 1-9 As shown, at the bottom of the pressure maintaining head 3 of the FPC assembly jig, a pressure head 31 is fixedly arranged corresponding to the pressure maintaining groove 21. Corresponding to the pasting area 114 and the pasting area 115 in the pressure maintaining groove 21, a first foam 32 and a second foam 33 are respectively fixedly arranged on the pressure head 31;

[0075] At the center of the top of the pressure maintaining seat 2, an inner rod 26 is fixedly arranged. An outer rod 27 is slidably arranged inside the inner rod 26. One end of the outer rod 27 is fixedly arranged at the center of the pressure maintaining head 3. The inner rod 26 extends into the inside of the bearing seat 1 to satisfy the sliding of the outer rod 27 inside it;

[0076] For example, Figure 7 As shown, the sizes and positions of the first foam 32 and the second foam 33 are respectively arranged corresponding to the corresponding first pressure - sensitive double - sided adhesive 15 and the second pressure - sensitive double - sided adhesive 116. Therefore, when the electric push rod 13 is started to drive the pressure maintaining head 3 thereon to move towards the pressure maintaining seat 2, the moving pressure maintaining head 3 will make the first foam 32 and the second foam 33 extend into the pressure maintaining groove 21 through the pressure head 3 thereon. Finally, the first foam 32 and the second foam 33 are pressed above the first pressure - sensitive double - sided adhesive 15 and the second pressure - sensitive double - sided adhesive 116, realizing the pressure maintaining operation on them;

[0077] In the actual application process, there are inevitably some locally fragile and easily damaged sensitive areas on the display module 11. For these areas, holes can be opened in the corresponding first foam 32 and the second foam 33 to avoid damaging the display module 11 when the first foam 32 and the second foam 33 are pressed down;

[0078] When the pressure maintaining head 3 presses the first foam 32 and the second foam 33 tightly on the display module 11 for pressure maintaining, the pressure maintaining head 3 abuts against the top end of the inner rod 26;

[0079] For example, Figure 8 As shown, when the pressure maintaining head 3 slides up and down, it can be guided by the inner rod 26, ensuring the accuracy of the position of the pressure maintaining head 3 when it falls and the accuracy during pressure maintaining. At the same time, when the first foam 32 and the second foam 33 are pressed above the corresponding first pressure - sensitive double - sided adhesive 15 and the second pressure - sensitive double - sided adhesive 116 for pressure maintaining, at this time, the pressure maintaining head 3 will abut against the inner rod 26, forming an obstacle to the movement of the pressure maintaining head 3, avoiding the problem of excessive pressure caused by the further downward movement of the pressure maintaining head 3.

[0080] The usage process of the FPC assembly jig provided by the present utility model is as follows: Place the display module 11 with the pressure-sensitive double-sided adhesive 15 and the pressure-sensitive double-sided adhesive 116 after pasting into the corresponding pressure-holding groove 21. Start the electric push rod 13 so that its output end drives the pressure-holding head 3 to move downward, making the pressure head 31 on the pressure-holding head 3 extend into the pressure-holding groove 21. Finally, make the foam 32 and the foam 33 abut above the corresponding pressure-sensitive double-sided adhesive 15 and the pressure-sensitive double-sided adhesive 116, forming a pressure-holding effect on them to activate the adhesiveness of the pressure-sensitive double-sided adhesive 1. After the pressure-holding is completed, move the output end of the electric push rod 13 to reset, and then take out the display module 11.

[0081] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium. It can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0082] Obviously, the above-described embodiments are only a part of the embodiments of the present utility model, rather than all of them. The drawings show the preferred embodiments of the present utility model, but do not limit the patent scope of the present utility model. The present utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present utility model more thorough and comprehensive. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing specific embodiments, or perform equivalent replacements on some of the technical features. Any equivalent structure directly or indirectly using the content of the specification and drawings of the present utility model in other related technical fields is equally within the scope of the patent protection of the present utility model.

Claims

1. An FPC assembly jig, characterized in that: It includes: A bearing seat (1), a pressure-maintaining seat (2) for placing and maintaining pressure on the display module (11) being fixed on the top of the bearing seat (1); A support arm (12) fixed to one side of the top of the support seat (1), and an electric push rod (13) is fixed to one side of the support arm (12); A pressure-maintaining head (3), which is connected to the output end of the electric push rod (13); The display module (11) comprises a display module upper cover plate (110) and a display module screen body (111) which are fitted together. The surface of the display module screen body (111) is also provided with a BTB connector (112) and a display module FPC (113), and the display module screen body (111) is also provided with a first pasting area (114); The display module FPC (113) is bent and then adhered to the adhesive area (114) using a pressure-sensitive double-sided adhesive (15); The display module screen body (111) is also provided with a second adhesive region (115), and the second adhesive region (115) is partially adhered to the BTB connector (112) via a second pressure-sensitive double-sided adhesive (116).

2. The FPC assembly jig according to claim 1, characterized in that: The pressure-maintaining seat (2) is provided with a pressure-maintaining groove (21) for the display module (11) to be placed therein, and a limiting column (22) is provided in the pressure-maintaining groove (21), and the limiting column (22) is located at the front and rear sides of the display module (11).

3. The FPC assembly jig according to claim 2, characterized in that: A limiting plate (23) is also provided in the pressure-maintaining groove (21), and a plurality of the limiting plates (23) are distributed on the left and right sides of the display module (11); The limiting plate (23) and the limiting column (22) together form a limiting space (24) for limiting the placement of the display module (11).

4. The FPC assembly jig according to claim 3, characterized in that: The limiting plate (23) comprises a side plate (230) fixed to the bottom wall of the pressure-maintaining groove (21) and an arc-shaped top plate (231) fixed to the top of the side plate (230), and the arc-shaped top plate (231) is provided with an introduction platform (232) extending in a direction away from the display module (11).

5. The FPC assembly jig according to claim 2, characterized in that: The pressure-maintaining seat (2) is also provided with a finger groove (25) in communication with the pressure-maintaining groove (21) near the pressure-maintaining groove (21).

6. The FPC assembly jig according to claim 2, characterized in that: There are a plurality of the pressure-maintaining grooves (21), and the plurality of the pressure-maintaining grooves (21) are equidistantly distributed on the pressure-maintaining seat (2).

7. The FPC assembly jig according to claim 1, characterized in that: A pressure head (31) is fixed to the bottom of the pressure-maintaining head (3) corresponding to the pressure-maintaining groove (21), and foam 1 (32) and foam 2 (33) are fixed to the adhesive area 1 (114) and adhesive area 2 (115) on the display module (11) corresponding to the pressure head (31), respectively.

8. The FPC assembly jig according to claim 7, characterized in that: An inner rod (26) is fixed at the center of the top of the pressure-maintaining seat (2), an outer rod (27) is slidably arranged inside the inner rod (26), and one end of the outer rod (27) is fixed at the center of the pressure-maintaining head (3).

9. The FPC assembly jig according to claim 8, characterized in that: The pressure-maintaining head (3) causes the foam 1 (32) and the foam 2 (33) to be pressed tightly against the display module (11). When the pressure is maintained, the pressure-maintaining head (3) contacts the top end of the inner rod (26).

10. The FPC assembly jig according to claim 6, characterized in that: The pressure retaining grooves (21) are four.

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