A device for testing the bonding strength of laminated glass

Abstract

This utility model belongs to the technical field of laminated glass testing devices. The purpose is to provide a device for testing the bonding strength of laminated glass, which has a simple structure and is easy to use. The technical solution includes a tensile testing machine, a lower clamp, an upper clamp, a lower fixture, and an upper fixture. The tensile testing machine has a fixed end and a moving end. The fixed end is located directly below the moving end, and the lower clamp is installed on the fixed end. The upper clamp is installed on the moving end. The lower fixture holds the lower fixture, and the upper fixture holds the upper fixture. The lower fixture includes a lower base and a lower support rod. The upper end of the lower support rod is vertically fixed to the bottom surface of the lower base. A layer of adhesive covers the top surface of the lower base, and the lower support rod is clamped in the lower fixture. The upper fixture includes an upper base and an upper support rod. The lower end of the upper support rod is vertically fixed to the top surface of the upper base. A layer of adhesive covers the bottom surface of the upper base, and the upper support rod is clamped in the upper fixture. This utility model is used to test the bonding strength of laminated glass.

Description

Technical Field

[0001] This utility model relates to a device for testing the bonding strength of laminated glass, belonging to the technical field of laminated glass testing devices. Background Technology

[0002] Laminated windshields and door windows are essential automotive components. Currently, all windshields have been upgraded from tempered glass to laminated glass. Laminated door windows offer superior sound and heat insulation compared to traditional tempered glass, making them increasingly popular among young people.

[0003] The testing of laminated glass generally includes: appearance inspection, optical performance testing, impact resistance testing, penetration resistance testing, bending strength testing, weather resistance testing, and acoustic performance testing. However, the testing of the bonding strength of laminated glass is not common, and there is no suitable tooling available, making it impossible to determine the bonding status of laminated glass. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a device for testing the bonding strength of laminated glass, which has a simple structure and is easy to use.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a device for testing the bonding strength of laminated glass, comprising a tensile testing machine, a lower clamp, an upper clamp, a lower fixture, and an upper fixture. The tensile testing machine has a fixed end and a movable end. The fixed end is located directly below the movable end, and the lower clamp is installed on the fixed end. The upper clamp is installed on the movable end. The lower fixture holds the lower fixture, and the upper fixture holds the upper fixture. The lower fixture includes a lower base and a lower support rod. The upper end of the lower support rod is vertically fixed to the bottom surface of the lower base. A layer of glue covers the top surface of the lower base. The lower support rod is clamped in the lower fixture. The upper fixture includes an upper base and an upper support rod. The lower end of the upper support rod is vertically fixed to the top surface of the upper base. A layer of glue covers the bottom surface of the upper base, and the upper support rod is clamped in the upper fixture.

[0006] Preferably, the lower clamp includes a fixing block and a clamping block. A rectangular groove is formed on the top surface of the fixing block, and the clamping block is located in the rectangular groove. One end of the push rod passes through a threaded hole on the side wall of the fixing block and is connected to the clamping block. The surfaces of the clamping block and the rectangular groove opposite to each other are two clamping surfaces. The upper clamp has the same structure as the lower clamp and is arranged opposite to each other.

[0007] Preferably, both the lower support rod and the upper support rod are round rods, and each of the opposing clamping surfaces of the lower clamp and the upper clamp is provided with an arc-shaped groove adapted to the lower support rod and the upper support rod.

[0008] Preferably, both the lower and upper support rods are provided with anti-slip textures, and the arc-shaped groove is also provided with anti-slip textures.

[0009] Preferably, the adhesive is an acrylic structural adhesive.

[0010] Compared with the prior art, the present invention has the following beneficial effects.

[0011] 1. The lower and upper fixtures in this utility model can be firmly bonded to the laminated glass. The bonding strength of the laminated glass can be tested by providing tensile force through a tensile testing machine, thus avoiding the defect of low bonding strength in the production process of laminated glass and the scrapping of products caused by low bonding strength.

[0012] 2. The lower and upper tooling in this utility model can be reused multiple times, avoiding waste. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the lower tooling and the upper tooling in this utility model.

[0016] Figure 3 This is a schematic diagram of the lower clamp and the upper clamp in this utility model.

[0017] Figure 4 This is a diagram showing the usage status of the lower and upper tooling in this utility model.

[0018] In the diagram: 1 is a tensile testing machine, 2 is a lower clamp, 21 is a fixing block, 22 is a clamping block, 23 is a groove, 24 is a push rod, 3 is an upper clamp, 4 is a lower tooling, 41 is a lower base, 42 is a lower support rod, 5 is an upper tooling, 51 is an upper base, 52 is an upper support rod, 6 is glue, 7 is an arc-shaped groove, and 8 is laminated glass. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described in conjunction with the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0020] It should be noted that the structures, proportions, sizes, etc. shown in the accompanying drawings of this specification are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which this utility model can be implemented. Therefore, they have no substantial technical significance. Any modification to the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed in this utility model, provided that it does not affect the effects and purposes that this utility model can produce. It should be noted that in this specification, relational terms such as "first" and "second" are only used to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0021] The present invention provides the following embodiments.

[0022] like Figure 1 , Figure 2 As shown, this utility model discloses a device for testing the bonding strength of laminated glass, comprising a tensile testing machine 1, a lower clamp 2, an upper clamp 3, a lower fixture 4, and an upper fixture 5. The tensile testing machine 1 has a fixed end and a movable end, with the fixed end located directly below the movable end. The lower clamp 2 is installed on the fixed end, and the upper clamp 3 is installed on the movable end. The lower fixture 4 is clamped in the lower clamp 2, and the upper fixture 5 is clamped in the upper clamp 3. The lower tooling 4 includes a lower base 41 and a lower support rod 42. The upper end of the lower support rod 42 is vertically fixed to the bottom surface of the lower base 41. A layer of glue 6 is coated on the top surface of the lower base 41. The lower support rod 42 is clamped in the lower fixture 2. The upper fixture 5 includes an upper base 51 and an upper support rod 52. The lower end of the upper support rod 52 is vertically fixed to the top surface of the upper base 51. A layer of glue 6 is also coated on the bottom surface of the upper base 51. The upper support rod 52 is clamped in the upper clamp 3.

[0023] picture Figure 3 As shown, the lower clamp 2 includes a fixing block 21 and a clamping block 22. A rectangular groove 23 is opened on the top surface of the fixing block 21. The clamping block 22 is located in the rectangular groove 23. One end of the push rod 24 passes through the threaded hole on the side wall of the fixing block 21 and is connected to the clamping block 22. The surfaces of the clamping block 22 and the rectangular groove 23 opposite to each other are the two clamping surfaces. The upper clamp 3 has the same structure as the lower clamp 2 and is arranged opposite to each other.

[0024] Both the lower support rod 42 and the upper support rod 52 are round rods. The lower clamp 2 and the upper clamp 3 are provided with arc-shaped grooves 7 on their respective clamping surfaces, which are adapted to the lower support rod 42 and the upper support rod 52.

[0025] Both the lower support rod 42 and the upper support rod 52 are provided with anti-slip textures, and the arc-shaped groove 7 is also provided with anti-slip textures.

[0026] The adhesive 6 is an acrylic structural adhesive.

[0027] like Figure 1 , Figure 4 As shown, when testing the bonding strength of the laminated glass 8, the lower fixture 4 and the upper fixture 5 are firmly bonded to the laminated glass 8 with glue. After the bonding is firm, the tensile testing machine 1 is started, and an upward tensile force is applied to the laminated glass 8 through the upper clamp 3 and the upper fixture 5, thereby testing the bonding strength of the laminated glass 8.

[0028] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An apparatus for testing the bonding strength of laminated glass, comprising a tensile testing machine (1), a lower clamp (2), an upper clamp (3), a lower fixture (4), and an upper fixture (5), wherein the tensile testing machine (1) has a fixed end and a movable end, the fixed end being located directly below the movable end, and the lower clamp (2) is mounted on the fixed end, and the upper clamp (3) is mounted on the movable end, characterized in that: The lower fixture (2) holds the lower tooling (4), and the upper fixture (3) holds the upper tooling (5). The lower tooling (4) includes a lower base (41) and a lower support rod (42). The upper end of the lower support rod (42) is vertically fixed on the bottom surface of the lower base (41). A layer of glue (6) is coated on the top surface of the lower base (41). The lower support rod (42) is clamped in the lower fixture (2). The upper fixture (5) includes an upper base (51) and an upper support rod (52). The lower end of the upper support rod (52) is vertically fixed on the top surface of the upper base (51). A layer of glue (6) is also coated on the bottom surface of the upper base (51). The upper support rod (52) is clamped in the upper fixture (3).

2. A device for testing the bonding strength of laminated glass according to claim 1, characterized in that: The lower clamp (2) includes a fixing block (21) and a clamping block (22). A rectangular groove (23) is opened on the top surface of the fixing block (21). The clamping block (22) is located in the rectangular groove (23). One end of the push rod (24) passes through the threaded hole on the side wall of the fixing block (21) and is connected to the clamping block (22). The surfaces of the clamping block (22) and the rectangular groove (23) opposite to each other are the two clamping surfaces. The structure of the upper clamp (3) is the same as that of the lower clamp (2), and they are arranged opposite to each other.

3. A device for testing the bonding strength of laminated glass according to claim 2, characterized in that: Both the lower support rod (42) and the upper support rod (52) are round rods. The lower clamp (2) and the upper clamp (3) are provided with arc-shaped grooves (7) that are adapted to the lower support rod (42) and the upper support rod (52) on their respective clamping surfaces.

4. A device for testing the bonding strength of laminated glass according to claim 3, characterized in that: Both the lower support rod (42) and the upper support rod (52) are provided with anti-slip textures, and the arc-shaped groove (7) is also provided with anti-slip textures.

5. A device for testing the bonding strength of laminated glass according to claim 1 or 2, characterized in that: The adhesive (6) is an acrylic structural adhesive.

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