Glue joint peel strength testing device
By designing a bonding peel strength test device consisting of an upper clamping rod, a support and a shaft, the problem that ordinary tensile testing machines cannot clamp bonding specimens is solved, and efficient and low-cost bonding peel strength testing is achieved on ordinary equipment, thereby improving test accuracy and efficiency.
Patent Information
- Application Number
- CN202422590399.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-10-25
AI Technical Summary
In the prior art, ordinary tensile testing machines are unable to effectively clamp adhesive bonded specimens, and specialized tensile testing machines are expensive and have complex fixture structures, resulting in low efficiency and high cost in adhesive peel strength testing.
A bonding peel strength test device is designed, which includes an upper clamping rod, a support, a shaft and a sample structure. The bonding peel strength test can be performed on a common tensile testing machine by using rolling bearings and bolt connections to ensure the vertical state of the sample.
The method realizes efficient and low-cost adhesive peel strength testing on a common tensile testing machine, improves test efficiency and accuracy, and reduces equipment costs.
Smart Images
Figure CN223413178U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an adhesive peeling strength testing device, belonging to the technical field of material testing experiments in the metallurgical industry. Background Art
[0002] Gluing is a process of connecting materials using adhesives. Compared with riveting, welding and bolting processes, it has the characteristics of simple process, easy operation, wide application range and low manufacturing cost, so it is widely used.
[0003] Adhesive performance is a crucial aspect in the selection and application of adhesives. There are many indicators used to measure adhesive performance, each with its own corresponding test methods. To verify product quality, bond strength testing is required to ensure bond reliability. This testing method involves using a material tensile testing machine to perform tensile, shear, and peel strength tests on bonded specimens. Peel strength is one of the key technical indicators for measuring adhesive performance. Due to the unique nature of these specimens, ordinary tensile testing machines are unable to clamp them. Dedicated tensile testing machines are not only expensive but also require complex fixture structures.
[0004] Therefore, in order to overcome the shortcomings of the above technologies, a new bonding strength test device with simple structure, low production cost, small size, easy operation and reliable measurement is designed. Utility Model Content
[0005] The purpose of the utility model is to provide a bonding peel strength testing device, which can be suitable for clamping a common tensile testing machine, improve the testing efficiency, and solve the problems existing in the background technology.
[0006] The technical solution of the utility model is:
[0007] A bonding peel strength testing device comprises an upper clamping rod, a support, a shaft and a specimen, wherein the support is a U-shaped structure, the upper clamping rod is fixedly connected to the support, two parallel shafts are provided in the support, and the two ends of the two shafts are respectively rotatably connected to the support; the specimen comprises a strip plate and a bent plate, which are connected together by glue to form a T-shaped specimen; the strip plate in the specimen is placed across the two shafts, and the bent plate passes through between the two shafts.
[0008] Both ends of the two shafts are rotatably connected to the supports via rolling bearings.
[0009] The plane where the two shafts are located is arranged perpendicular to the upper clamping rod.
[0010] The bending plate and the upper clamping rod are respectively matched with the two jaws of the tensile testing machine.
[0011] The support is formed by two support plates through bolts.
[0012] The beneficial effects of this utility model are: using the upper clamping rod and the lower bending plate to connect the peel strength specimen to the tensile testing machine, not only can the adhesive peel strength test be conducted on an ordinary tensile testing machine, but the operation is also very convenient, greatly improving the testing efficiency and reducing the cost of tensile testing. It has a simple structure, a compact and lightweight size, and high testing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is the main view of the utility model;
[0014] Figure 2 This is the left side view of the utility model;
[0015] Figure 3 This is a schematic diagram of the sample structure of the utility model;
[0016] In the figure: upper clamping rod 1, support plate 2, nut 3, bolt 4, washer 5, shaft 6, rolling bearing 7, strip plate 8, glue 9, bent plate 10. DETAILED DESCRIPTION
[0017] The present invention will be further described below with reference to the accompanying drawings and examples.
[0018] Refer to the attached Figure 1-3 A bonding peel strength testing device comprises an upper clamping rod 1, a support, a shaft 6 and a specimen, wherein the support is a U-shaped structure, the upper clamping rod 1 is fixedly connected to the support, two parallel shafts 6 are provided in the support, and the two ends of the two shafts 6 are rotatably connected to the support respectively; the specimen comprises a strip plate 8 and a bent plate 10, which are connected together by glue 9 to form a T-shaped specimen; the strip plate 8 in the specimen is placed across the two shafts 6, and the bent plate 10 passes through between the two shafts 6.
[0019] In this embodiment, refer to the attached Figure 1-3 The adhesive peel strength test device includes an upper clamping rod 1, a support plate 2, a nut 3, a bolt 4, a washer 5, a shaft 6, a rolling bearing 7, and a specimen. The two support plates 2 are connected together by bolts 4 to form a U-shaped support. The strip plate 8 and the bent plate 10 are connected by glue 9 to form a T-shaped specimen, which can ensure that the peeling direction of the glue always remains perpendicular to the substrate during the peeling process. The strip plate 8 is placed across the two shafts 6. The two shafts 6 are parallel to each other and their plane is perpendicular to the upper clamping rod 1. The two support plates 2 are parallel to each other, perpendicular to the two shafts 6 and the bolts 4, and parallel to the upper clamping rod 1. The rolling bearings 7 are installed in the two support plates 2 and connected to the shafts 6, reducing the friction between the shafts 6 and the support plates 2 and ensuring the accuracy of the test results.
[0020] During the test, the upper clamping rod 1 and the bent plate 10 are clamped on the two jaws of the tensile testing machine.
[0021] The sample strip plate 8 is placed horizontally on the two shafts 6, and the tensile testing machine is started. As the tensile testing machine stretches, the sample moves upward on the two shafts 6. The peeling force or peel strength of the adhesive joint is obtained through the tensile testing machine. During the entire peeling process, the peeling direction of the adhesive joint is always kept perpendicular to the sample strip plate, ensuring the accuracy of the test results.
Claims
1. A bonding peel strength test device, characterized by: The invention comprises an upper clamping rod (1), a support, a shaft (6) and a specimen, wherein the support is a U-shaped structure, the upper clamping rod (1) is fixedly connected to the support, two parallel shafts (6) are provided in the support, and the two ends of the two shafts (6) are rotatably connected to the support respectively; the specimen comprises a strip plate (8) and a bending plate (10), and the strip plate (8) and the bending plate (10) are connected together by glue (9) to form a T-shaped specimen; the strip plate (8) in the specimen is placed across the two shafts (6), and the bending plate (10) passes through between the two shafts (6).
2. The adhesive peel strength testing device according to claim 1, characterized in that: Both ends of the two shafts (6) are rotatably connected to the support via rolling bearings (7).
3. The adhesive peel strength testing device according to claim 1 or 2, characterized in that: The plane where the two shafts (6) are located is arranged perpendicular to the upper clamping rod (1).
4. The adhesive peel strength testing device according to claim 1, characterized in that: The bending plate (10) and the upper clamping rod (1) respectively cooperate with two jaws of a tensile testing machine.
5. The adhesive peel strength testing device according to claim 1, characterized in that: The support is formed by two support plates (2) connected by bolts (4).