Full-lamination positioning jig

Abstract

The utility model relates to a full-lamination positioning jig which comprises a lower jig plate and an upper jig plate, a first positioning sinking groove is formed in the lower jig plate and used for containing a front glass cover plate in a matched mode, the upper jig plate is arranged above the lower jig plate and is in positioning fit with the lower jig plate, and a second positioning sinking groove is formed in the upper jig plate and used for containing a liquid crystal display module in a matched mode. A telescopic piece is arranged on the side wall of the second positioning sinking groove, and the telescopic piece is configured to have the tendency to retract into the side wall when pressed by the liquid crystal display module, so that the liquid crystal display module enters the second positioning sinking groove, and has the tendency to extend out of the side wall when not pressed by the liquid crystal display module; the telescopic piece is arranged on the front glass cover plate, so that the telescopic piece abuts against the concave face of the side face of the liquid crystal display module and presses the concave face in the second positioning sinking groove, the liquid crystal display module can be kept fixed when the second positioning sinking groove faces downwards, the front glass cover plate and the liquid crystal display module do not have the displacement problem in the vacuum attaching environment, and the attaching precision can be remarkably improved.

Description

Technical Field

[0001] The present application relates to the technical field of full-screen lamination processing, and in particular to a full-screen lamination positioning fixture. Background Art

[0002] With the development of liquid crystal touch screen technology, industrial control touch screens are more and more widely used in the industrial field. Industrial control touch screens mainly include capacitive touch screens and resistive touch screens, which usually include a glass cover plate (Cover Glass, referred to as CG), a capacitive touch panel (CTP) or a resistive touch panel (RTP) and a liquid crystal display module (LCM) arranged from top to bottom. The three are bonded together to form a complete industrial control touch screen through full bonding technology, frame bonding technology or zero bonding technology. The relative bonding position between the glass cover plate and the liquid crystal display module needs to be accurately determined during the bonding process. However, during the bonding process, the liquid crystal display module is usually placed on the lower fixture plate, and the front glass cover plate is manually blindly bonded. This bonding method is difficult to achieve the accuracy requirements for the relative position between the glass cover plate and the liquid crystal display module, resulting in poor bonding accuracy and low bonding efficiency of the finished product. Summary of the invention

[0003] Based on this, it is necessary to provide a full-lamination positioning fixture to address the problems of poor lamination accuracy and low lamination efficiency of industrial control touch screens during the lamination process.

[0004] The present application proposes a full-fitting positioning fixture for fitting and positioning between a front glass cover plate and a liquid crystal display module, and the full-fitting positioning fixture includes:

[0005] A lower fixture plate, wherein the lower fixture plate is provided with a first positioning recessed groove, wherein the first positioning recessed groove is used to cooperate with the front glass cover plate for placement;

[0006] An upper jig plate, wherein the upper jig plate is arranged above the lower jig plate and is positioned and matched with the lower jig plate, the upper jig plate is provided with a second positioning groove, the side of the upper jig plate provided with the second positioning groove is opposite to the side of the lower jig plate provided with the first positioning groove, the second positioning groove is used to cooperate in placing the liquid crystal display module, and the side wall of the second positioning groove is provided with a telescopic member, and the telescopic member is configured to have a tendency to retract into the side wall when being compressed by the liquid crystal display module, so that the liquid crystal display module enters the second positioning groove, and has a tendency to extend out of the side wall when not being compressed by the liquid crystal display module, so that the telescopic member abuts against the concave surface of the side of the liquid crystal display module and presses the liquid crystal display module into the second positioning groove.

[0007] In one of the embodiments, the second positioning groove has a first side wall and a second side wall that are oppositely arranged, the telescopic member is arranged on the first side wall, and the telescopic member is configured to provide a restoring force to press the liquid crystal display module located in the second positioning groove against the second side wall.

[0008] In one embodiment, the telescopic member includes a spring probe, and the first side wall is provided with a mounting hole along a direction parallel to the bottom of the second positioning groove, and the head of the spring probe is penetrated into the first side wall through the mounting hole.

[0009] In one embodiment, the upper fixture plate includes a probe mounting platform, which is arranged on the side of the first side wall facing away from the second side wall. The probe mounting platform is provided with a mounting channel along a direction parallel to the bottom of the second positioning groove, and the mounting channel corresponds to the mounting hole. The spring probe is arranged in the mounting channel and the head of the spring probe is penetrated into the first side wall through the mounting hole.

[0010] In one embodiment, the lower fixture plate is provided with an ear groove, and the ear groove is connected to the first positioning recessed groove.

[0011] In one embodiment, the lower fixture plate includes a placement boss, the placement boss is arranged in the first positioning groove, the height of the placement boss is less than the depth of the first positioning groove, and the side wall of the boss does not fit the side wall of the first positioning groove.

[0012] In one of the embodiments, the upper fixture plate is provided with a position-avoiding groove, and the position-avoiding groove is provided at the bottom of the second positioning groove.

[0013] In one embodiment, the full-fit positioning fixture also includes a positioning mechanism, and the positioning mechanism includes a first positioning member and a second positioning member, the first positioning member is arranged on a side of the lower fixture plate where the first positioning groove is opened, and the second positioning member is arranged on a side of the upper fixture plate where the second positioning groove is opened, and the first positioning member cooperates with the second positioning member.

[0014] In one embodiment, the first positioning member is a positioning hole opened along the height direction and the second positioning member is a positioning pin opened along the height direction, or the second positioning member is a positioning hole opened along the height direction and the first positioning member is a positioning pin opened along the height direction, and the positioning pin is placed in the positioning hole.

[0015] In one embodiment, the upper jig plate is provided with a taking groove, and the side of the upper jig plate provided with the second positioning groove is a fitting surface, and the taking groove is provided at the junction of the side surface of the upper jig plate and the fitting surface.

[0016] In the technical solution of the present application, during the fitting and positioning process between the front glass cover plate and the liquid crystal display module, the front glass cover plate is first placed in the first positioning groove to complete the positioning of the front glass cover plate, and then the liquid crystal display module is placed in the second positioning groove to complete the positioning of the liquid crystal display module. During the process of placing the liquid crystal display module into the second positioning groove, the telescopic member is pressed so that the telescopic member is retracted into the side wall of the second positioning groove until the liquid crystal display module is placed in the second positioning groove. Since the side surface of the liquid crystal display module has a concave structure, the concave surface no longer presses the telescopic member, and the telescopic member is retracted. The retracted part extends out of the side wall and presses against the concave surface of the side of the liquid crystal display module, so that the liquid crystal display module can also be fixed in the second positioning groove when the second positioning groove of the upper jig plate is facing downward. After placing the front glass cover plate and the liquid crystal display module on the lower jig plate and the upper jig plate respectively, the upper jig plate is turned over so that the first positioning groove and the second positioning groove are opposite to each other, and the upper jig plate is positioned and matched with the lower jig plate to achieve the bonding between the front glass cover plate and the liquid crystal display module. In the vacuum bonding environment, there will be no displacement problem between the front glass cover plate and the liquid crystal display module, which can significantly improve the bonding accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an embodiment of a full-fit positioning fixture of the present application.

[0018] Figure 2 This is a structural schematic diagram of the lower fixture plate of an embodiment of the full-fit positioning fixture of the present application.

[0019] Figure 3 This is a structural schematic diagram of an upper fixture plate of an embodiment of a full-fit positioning fixture of the present application.

[0020] Figure 4 This is a perspective structural diagram of an upper fixture plate of an embodiment of a full-fit positioning fixture of the present application.

[0021] Description of component numbers in the attached figure:

[0022] 1000, full-fit positioning fixture; 100, lower fixture plate; 110, first positioning groove; 120, ear groove; 130, placement boss; 200, upper fixture plate; 210, second positioning groove; 211, first side wall; 2111, mounting hole; 212, second side wall; 220, telescopic member; 230, probe mounting platform; 231, mounting channel; 240, avoidance groove; 300, positioning mechanism; 310, first positioning member; 320, second positioning member; 250, taking groove; 251, fitting surface. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0024] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0025] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0026] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0027] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0028] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0029] See also Figures 1 to 3 , Figures 1 to 3 The structural schematic diagrams of the full-fit positioning fixture 1000, the upper fixture plate 200 and the lower fixture plate 100 in the present application are respectively shown. The present application proposes a full-fit positioning fixture 1000, which is used for the fitting and positioning between the front glass cover plate and the liquid crystal display module. The full-fit positioning fixture 1000 includes a lower fixture plate 100 and an upper fixture plate 200. The lower fixture plate 100 is provided with a first positioning recessed groove 110, which is used to cooperate with the placement of the front glass cover plate. The upper jig plate 200 is arranged above the lower jig plate 100 and is positioned and matched with the lower jig plate 100. The upper jig plate 200 is provided with a second positioning groove 210. The side of the upper jig plate 200 provided with the second positioning groove 210 is opposite to the side of the lower jig plate 100 provided with the first positioning groove 110. The second positioning groove 210 is used to cooperate in placing the liquid crystal display module. The side wall of the second positioning groove 210 is provided with a telescopic member 220. The telescopic member 220 is configured to have a tendency to retract into the side wall when it is compressed by the liquid crystal display module, so that the liquid crystal display module enters the second positioning groove 210, and has a tendency to extend out of the side wall when it is not compressed by the liquid crystal display module, so that the telescopic member 220 abuts against the concave surface of the side of the liquid crystal display module and presses the liquid crystal display module into the second positioning groove 210.

[0030] During the fitting and positioning process between the front glass cover plate and the liquid crystal display module, the front glass cover plate is first placed in the first positioning groove 110 to complete the positioning of the front glass cover plate, and then the liquid crystal display module is placed in the second positioning groove 210 to complete the positioning of the liquid crystal display module. During the process of placing the liquid crystal display module into the second positioning groove 210, the telescopic member 220 is pressed, so that the telescopic member 220 is retracted into the side wall of the second positioning groove 210 until the liquid crystal display module is placed in the second positioning groove 210. Since the side surface of the liquid crystal display module has a concave structure, the concave surface no longer presses the telescopic member 220 at this time, and the telescopic member 220 extends out. The side wall presses against the concave surface of the side of the liquid crystal display module, so that the liquid crystal display module can also be fixed in the second positioning groove 210 when the second positioning groove 210 of the upper fixture plate 200 is facing downward. After the front glass cover plate and the liquid crystal display module are placed on the lower fixture plate 100 and the upper fixture plate 200 respectively, the upper fixture plate 200 is turned over so that the first positioning groove 110 and the second positioning groove 210 are opposite to each other, and the upper fixture plate 200 is positioned and matched with the lower fixture plate 100 to achieve the bonding between the front glass cover plate and the liquid crystal display module. In the vacuum bonding environment, there will be no displacement problem between the front glass cover plate and the liquid crystal display module, which can significantly improve the bonding accuracy.

[0031] The arrangement of the telescopic member 220 is determined according to the actual application. It can be arranged on two adjacent side walls of the second positioning groove 210, or on two opposite side walls of the second positioning groove 210, or on a single side wall of the second positioning groove 210. No specific limitation is made here. Multiple telescopic members 220 can be arranged on a single side wall to strengthen the pressure of the telescopic member 220 on the liquid crystal display module and improve the fixing strength. For example, refer to Figure 3 The second positioning groove 210 has a first side wall 211 and a second side wall 212 that are arranged opposite to each other. The telescopic member 220 is arranged on the first side wall 211 . The telescopic member 220 is configured to provide a restoring force to press the liquid crystal display module located in the second positioning groove 210 against the second side wall 212 .

[0032] For example, see Figure 3 and Figure 4The telescopic member 220 includes a spring probe. A mounting hole 2111 is provided on the first side wall 211 in a direction parallel to the bottom of the second positioning groove 210. The head of the spring probe is inserted into the first side wall 211 through the mounting hole 2111. The upper fixture plate 200 includes a probe mounting platform 230. The probe mounting platform 230 is arranged on the side of the first side wall 211 facing away from the second side wall 212. A mounting channel 231 is provided on the probe mounting platform 230 in a direction parallel to the bottom of the second positioning groove 210. The mounting channel 231 corresponds to the mounting hole 2111. The spring probe is arranged in the mounting channel 231 and the head of the spring probe is inserted into the first side wall 211 through the mounting hole 2111. The main body of the spring probe is fixedly mounted on the probe mounting platform 230 through the mounting channel 231, so that the head of the spring probe can extend or retract into the mounting hole 2111 of the first side wall 211.

[0033] See also Figure 2 , the lower fixture plate 100 is provided with an ear groove 120, and the ear groove 120 is connected to the first positioning groove 110. After the front glass cover plate is placed in the first positioning groove 110, the side of the front glass cover plate fits with the side wall of the first positioning groove 110. After the front glass cover plate and the liquid crystal display module are fitted together, it is difficult to remove the front glass cover plate from the first positioning groove 110. By setting the ear groove 120 connected to the first positioning groove 110, the operator can contact the side of the front glass cover plate at the ear groove 120 and lift the front glass cover plate. The ear groove 120 can be set in other shapes such as round and square, and again no specific limitation is made. The number of ear grooves 120 is determined according to the actual application and is not specifically limited here. For example, an ear groove 120 is set on both sides of the first positioning groove 110, so that the operator can lift the front glass cover plate with both hands.

[0034] Furthermore, the lower fixture plate 100 includes a placement boss 130, which is disposed in the first positioning groove 110, and the height of the placement boss 130 is less than the depth of the first positioning groove 110, and the side wall of the boss does not fit the side wall of the first positioning groove 110. After the front glass cover is placed on the placement boss 130, the front glass cover is lifted up from the first positioning groove 110, and the staff can reach into the bottom of the front glass cover through the ear groove 120, so that the front glass cover can be lifted out of the first positioning groove 110 more conveniently.

[0035] See also Figure 3 and Figure 4Optionally, the upper fixture plate 200 is provided with an avoidance groove 240, and the avoidance groove 240 is provided at the bottom of the second positioning groove 210. The back of the liquid crystal display module is usually provided with uneven components such as a circuit board. By providing the avoidance groove 240 to accommodate components such as the circuit board on the back of the liquid crystal display module, the horizontality of the liquid crystal display module and the front glass cover plate is maintained when the liquid crystal display module is bonded. The setting shape and setting position of the avoidance groove 240 are determined according to the back structural features of the liquid crystal display module, and are not specifically limited here. For some special-shaped structural features on the side of the liquid crystal display module, a partition can be provided between the side walls of the second positioning groove 210 to avoid the position, which does not affect the positioning function of the second positioning groove 210 and can also reduce the production cost of the full-fit positioning fixture 1000.

[0036] See also Figure 1 The full-fit positioning fixture 1000 also includes a positioning mechanism 300, and the positioning mechanism 300 includes a first positioning member 310 and a second positioning member 320. The first positioning member 310 is arranged on a side of the lower fixture plate 100 where a first positioning groove 110 is opened, and the second positioning member 320 is arranged on a side of the upper fixture plate 200 where a second positioning groove 210 is opened. The first positioning member 310 cooperates with the second positioning member 320, and the relative position between the upper fixture plate 200 and the lower fixture plate 100 is accurately positioned through the cooperation of the first positioning member 310 and the second positioning member 320.

[0037] Exemplarily, the first positioning member 310 is a positioning hole opened along the height direction and the second positioning member 320 is a positioning pin opened along the height direction, or the second positioning member 320 is a positioning hole opened along the height direction and the first positioning member 310 is a positioning pin opened along the height direction, and the positioning pin is placed in the positioning hole.

[0038] See also Figure 3 The upper jig plate 200 is provided with a taking groove 250, and the side of the upper jig plate 200 provided with the second positioning groove 210 is a fitting surface 251. The taking groove 250 is provided at the junction of the side surface of the upper jig plate 200 and the fitting surface 251. A taking groove 250 is provided on the opposite sides of the upper jig plate 200, respectively, so that the operator can carry the upper jig plate 200 with both hands.

[0039] In the technical solution of the present application, during the fitting and positioning process between the front glass cover plate and the liquid crystal display module, the front glass cover plate is first placed in the first positioning groove 110 to complete the positioning of the front glass cover plate, and then the liquid crystal display module is placed in the second positioning groove 210 to complete the positioning of the liquid crystal display module. During the process of placing the liquid crystal display module into the second positioning groove 210, the telescopic member 220 is pressed, so that the telescopic member 220 is retracted into the side wall of the second positioning groove 210 until the liquid crystal display module is placed in the second positioning groove 210. Since the side surface of the liquid crystal display module has a concave structure, the concave surface no longer presses the telescopic member 220 at this time, and the telescopic member 220 20 extends out from the side wall and presses against the concave surface of the side of the liquid crystal display module, so that the liquid crystal display module can also be fixed in the second positioning groove 210 when the second positioning groove 210 of the upper fixture plate 200 is facing downward. After the front glass cover plate and the liquid crystal display module are placed on the lower fixture plate 100 and the upper fixture plate 200 respectively, the upper fixture plate 200 is turned over so that the first positioning groove 110 and the second positioning groove 210 are opposite to each other, and the upper fixture plate 200 is positioned and matched with the lower fixture plate 100 to achieve the bonding between the front glass cover plate and the liquid crystal display module. In the vacuum bonding environment, there will be no displacement problem between the front glass cover plate and the liquid crystal display module, which can significantly improve the bonding accuracy.

[0040] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0041] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A full-fitting positioning fixture, used for fitting and positioning between the front glass cover plate and the liquid crystal display module, characterized in that: The fully fitting positioning fixture includes: A lower fixture plate, wherein the lower fixture plate is provided with a first positioning recessed groove, wherein the first positioning recessed groove is used to cooperate with the front glass cover plate for placement; An upper jig plate, wherein the upper jig plate is arranged above the lower jig plate and is positioned and matched with the lower jig plate, the upper jig plate is provided with a second positioning groove, the side of the upper jig plate provided with the second positioning groove is opposite to the side of the lower jig plate provided with the first positioning groove, the second positioning groove is used to cooperate in placing the liquid crystal display module, and the side wall of the second positioning groove is provided with a telescopic member, and the telescopic member is configured to have a tendency to retract into the side wall when being compressed by the liquid crystal display module, so that the liquid crystal display module enters the second positioning groove, and has a tendency to extend out of the side wall when not being compressed by the liquid crystal display module, so that the telescopic member abuts against the concave surface of the side of the liquid crystal display module and presses the liquid crystal display module into the second positioning groove.

2. The full-fit positioning fixture according to claim 1, characterized in that: The second positioning groove has a first side wall and a second side wall that are arranged opposite to each other. The telescopic member is arranged on the first side wall. The telescopic member is configured to provide a restoring force to press the liquid crystal display module in the second positioning groove against the second side wall.

3. The full-fit positioning fixture according to claim 2, characterized in that: The telescopic member includes a spring probe. The first side wall is provided with a mounting hole along a direction parallel to the bottom of the second positioning recess. The head of the spring probe is inserted into the first side wall through the mounting hole.

4. The full-fit positioning fixture according to claim 3, characterized in that: The upper fixture plate includes a probe mounting platform, which is arranged on the side of the first side wall facing away from the second side wall. The probe mounting platform is provided with a mounting channel along a direction parallel to the bottom of the second positioning groove, and the mounting channel corresponds to the mounting hole. The spring probe is arranged in the mounting channel and the head of the spring probe is penetrated into the first side wall through the mounting hole.

5. The full-fit positioning fixture according to claim 1, characterized in that: The lower fixture plate is provided with an ear groove, and the ear groove is connected to the first positioning recessed groove.

6. The full-fit positioning fixture according to claim 5, characterized in that: The lower fixture plate includes a placement boss, which is arranged in the first positioning groove. The height of the placement boss is less than the depth of the first positioning groove, and the side wall of the boss does not fit the side wall of the first positioning groove.

7. The full-fit positioning fixture according to claim 1, characterized in that: The upper fixture plate is provided with a position-avoiding groove, and the position-avoiding groove is arranged at the bottom of the second positioning groove.

8. The full-fit positioning fixture according to claim 1, characterized in that: The full-fit positioning fixture also includes a positioning mechanism, which includes a first positioning member and a second positioning member. The first positioning member is arranged on a side of the lower fixture plate where the first positioning groove is opened, and the second positioning member is arranged on a side of the upper fixture plate where the second positioning groove is opened, and the first positioning member cooperates with the second positioning member.

9. The full-fit positioning fixture according to claim 8, characterized in that: The first positioning member is a positioning hole opened along the height direction and the second positioning member is a positioning pin opened along the height direction, or the second positioning member is a positioning hole opened along the height direction and the first positioning member is a positioning pin opened along the height direction, and the positioning pin is placed in the positioning hole.

10. The full-fit positioning fixture according to claim 1, characterized in that: The upper fixture plate is provided with a taking groove, and the side of the upper fixture plate provided with the second positioning recess is a fitting surface, and the taking groove is provided at the junction of the side surface of the upper fixture plate and the fitting surface.

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