Adhesion test fixture and adhesion test apparatus

Abstract

This invention provides an adhesion testing fixture and an adhesion testing device. The adhesion testing fixture includes a base, a contoured part, a connector, and a movable seat. The contoured part is fixedly mounted on the base and matches a first component of the product to be tested to position the first component, thereby reducing testing errors caused by deformation of the first component. The connector is movably mounted on the base, and its first end is fixedly connected to a second component of the product to be tested. The movable seat is detachably connected to the second end of the connector and has a gap with the base, thus avoiding additional tension on the product to be tested due to dimensional deviations during assembly. Therefore, when the movable seat moves away from the base, the connector can move the second component, thereby separating the bonded second component from the first component, enabling accurate adhesion testing of the product to be tested.

Description

Technical Field

[0001] This invention relates to the field of adhesive force testing technology, and more particularly to an adhesive force testing fixture and an adhesive force testing device. Background Technology

[0002] In the operation of linear motors in devices such as mobile phones and watches, springs need to vibrate millions or even tens of millions of times. The spring vibration damper (or constrained layer damper, CLD) bonded to the spring oscillates with the spring. Therefore, it is necessary to strictly monitor the adhesion force between the spring vibration damper and the spring during product manufacturing and assembly to prevent substandard adhesion from affecting product quality. Existing test fixtures apply additional force to the product when it is placed in the fixture, and it is difficult to avoid testing errors caused by product deformation. This affects the test results of adhesion force, thus impacting product quality. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide an adhesive force testing fixture and an adhesive force testing device to achieve accurate testing of adhesive force.

[0004] In a first aspect, embodiments of the present invention provide an adhesion testing fixture, the adhesion testing fixture comprising: a base; a profile member fixedly disposed on the base, the profile member matching a first component of the product to be tested for positioning the first component; a connector movably disposed on the base, a first end of the connector being fixedly connected to a second component of the product to be tested; and a movable seat having a gap between the movable seat and the base, the movable seat being detachably connected to a second end of the connector, the movable seat being configured to move in a direction away from the base, and driving the second component through the connector to separate the bonded second component from the first component.

[0005] Furthermore, a protrusion is formed on the base; a gap exists between the contoured part and the protrusion.

[0006] Furthermore, a first contouring portion is formed on the side of the protrusion facing the contouring component, and the first contouring portion matches the contouring component.

[0007] Furthermore, the contouring component is configured as a duckbill-shaped piece.

[0008] Furthermore, the protrusion is provided with a first clearance groove; the connector passes through the first clearance groove and is fixedly connected to the second component.

[0009] Furthermore, the base is provided with a guide groove; the connector is movably mounted on the base through the guide groove.

[0010] Furthermore, the second end of the connector has a protrusion forming a mating portion; the connector is detachably connected to the movable seat through the mating portion.

[0011] Furthermore, the movable seat is provided with a docking groove; the docking part is disposed in the docking groove.

[0012] Furthermore, the movable seat is provided with a second clearance groove, which communicates with the docking groove; the second end of the connector is connected to the docking part by means of the second clearance groove.

[0013] Furthermore, the first end of the connector is formed with a second contoured portion, which matches the second component and is fixedly connected to the second component.

[0014] Secondly, embodiments of the present invention also provide an adhesion testing device, the adhesion testing device comprising: the adhesion testing fixture as described in the first aspect.

[0015] This invention provides an adhesion testing fixture and an adhesion testing device. The adhesion testing fixture includes a base, a contoured part, a connector, and a movable seat. The contoured part is fixedly mounted on the base and matches a first component of the product to be tested to position the first component, thereby reducing testing errors caused by deformation of the first component. The connector is movably mounted on the base, and its first end is fixedly connected to a second component of the product to be tested. The movable seat is detachably connected to the second end of the connector and has a gap with the base, thus avoiding additional tension on the product to be tested due to dimensional deviations during assembly. Therefore, when the movable seat moves away from the base, the connector can move the second component, thereby separating the bonded second component from the first component, enabling accurate adhesion testing of the product to be tested. Attached Figure Description

[0016] The above and other objects, features and advantages of the present invention will become clearer from the following description of embodiments of the invention with reference to the accompanying drawings, in which:

[0017] Figure 1 This is a structural schematic diagram of a product to be tested;

[0018] Figure 2 This is a magnified schematic diagram of a part of the product to be tested.

[0019] Figure 3 A schematic diagram of the structure of an existing test fixture;

[0020] Figure 4 This is a schematic diagram of the adhesive force testing fixture provided in an embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the working process of the adhesion testing fixture provided in the embodiment of the present invention;

[0022] Figure 6 This is a schematic diagram of the structure of the base provided in an embodiment of the present invention;

[0023] Figure 7 This is a schematic diagram of the structure of the contouring component provided in an embodiment of the present invention;

[0024] Figure 8 This is a schematic diagram of the structure of the connector provided in an embodiment of the present invention;

[0025] Figure 9 This is a schematic diagram of the structure of the movable seat provided in an embodiment of the present invention.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1-Base; 11-Protrusion; 12-First contouring part; 13-First clearance groove; 14-Guide groove; 15-Mounting hole; 2-Contouring part; 21-Main body; 22-Mounting part; 3-Connector; 31-Mating part; 32-Second contouring part; 4-Moving seat; 41-Mating groove; 42-Second clearance groove; 5-Gap; 6-Gap; A-Product to be tested; A1-First component; A2-Second component; A3-Adhesive; B-Existing test fixture; B1-Existing base; B2-Existing connector; B3-Existing moving seat. Detailed Implementation

[0028] The present invention is described below based on embodiments, but the invention is not limited to these embodiments. In the detailed description of the invention below, certain specific details are described in detail. Those skilled in the art will fully understand the invention even without these details. To avoid obscuring the essence of the invention, well-known methods, processes, flows, elements, and circuits are not described in detail.

[0029] Furthermore, those skilled in the art should understand that the accompanying drawings provided herein are for illustrative purposes only and are not necessarily drawn to scale.

[0030] Unless the context explicitly requires it, words such as "including" or "contains" in the instruction manual should be interpreted as including rather than exclusive or exhaustive; that is, meaning "including but not limited to".

[0031] In the description of this invention, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0032] For ease of explanation, spatially related terms such as “inner,” “outer,” “below,” “below,” “lower,” “above,” “upper,” “left,” “right,” etc., are used herein to describe the relationship between one element or feature illustrated in the figure and another element or feature. It will be understood that spatially related terms may be intended to encompass different orientations of the device in use or operation besides those depicted in the figure. For example, if the device in the figure is flipped, an element described as “below” or “below” other elements or features would then be positioned “above” those other elements or features. Thus, the exemplified term “below” can encompass both above and below orientations.

[0033] Figure 1 This is a structural schematic diagram of the product to be tested, such as... Figure 1 As shown, the product A to be tested includes a first component A1 and a second component A2. It should be noted that the first component A1 is a spring, and the second component is a spring vibration damper (or constrained layer damper, CLD), and the first component A1 and the second component A2 are fixedly connected by adhesive bonding. Furthermore, Figure 2 This is a magnified schematic diagram of a portion of the product to be tested, such as... Figure 2 As shown, the first component A1 and the second component A2 are bonded together using adhesive A3. It should be noted that adhesive A3 includes organic or inorganic, natural or synthetic substances capable of joining two or more homogeneous or heterogeneous components (or materials) together, possessing sufficient strength after curing. The type of adhesive A3, the bonding area, and other factors are related to the bonding strength of the product A under test.

[0034] Figure 3 This is a structural schematic diagram of an existing test fixture, such as... Figure 3As shown, the existing test fixture B includes an existing base B1, an existing connector B2, and an existing movable seat B3. It should be noted that the existing base B1 cannot be adapted to the first component A1, that is, it cannot be adapted to the structure of the product under test A for positioning. Therefore, the product under test A is prone to deformation during testing, leading to errors in the test of the adhesive force of A3. On the other hand, during installation, because the existing movable seat B3 is initially pressed against the existing base B1, the existing connector B2 applies additional force to the second component A2 of the product under test A before the test begins, ultimately resulting in inaccurate test results for the adhesive force. In other words, the existing test fixture B cannot provide accurate test results for the adhesive force.

[0035] Figure 4 This is a schematic diagram of the adhesive force testing fixture provided in an embodiment of the present invention, as shown below. Figure 4 As shown, the adhesion testing fixture includes a base 1, a contoured part 2, a connector 3, and a movable base 4. Further, Figure 5 This is a schematic diagram of the working process of the adhesion testing fixture provided in the embodiment of the present invention, combined with... Figure 4 and Figure 5As shown, the profile 2 is fixedly mounted on the base 1, and the connector 3 is movably mounted on the base 1. It is easily understood that the profile 2 matches the first component A1 of the product under test A, allowing the first component A1 to fit snugly around the profile 2. On the other hand, the first end of the connector 3 is fixedly connected to the second component A2 of the product under test A, allowing the connector 3 to apply pressure to the second component A2 for adhesion testing. It should be noted that, in one embodiment, the connector 3 is fixedly connected to the second component A2 by adhesive bonding. Furthermore, the adhesive material used for the connector 3 needs to be carefully selected so that the adhesion between the connector 3 and the second component A2 is greater than the adhesion between the second component A2 and the first component A1. This ensures that the connector 3 remains fixedly connected to the second component A2 even when the second component A2 separates from the first component A1 under tension. As an optional embodiment, the connector 3 and the second component A2 can also be fixedly connected by welding or other connection methods. Furthermore, the movable seat 4 is detachably connected to the second end of the connector 3, and there is a gap 5 between the movable seat 4 and the base 1. It should be noted that by setting the gap 5 between the movable seat 4 and the base 1, the connector 3, which connects to the product A to be tested, has a certain adjustment space during installation. This avoids applying additional force to the second component A2 of the product A to be tested after installation, i.e., before testing, thus preventing any impact on the adhesion test results. Therefore, when the movable seat 4 is driven to move away from the base 1, the movable seat 4 can drive the second component A2 through the connector 3, thereby separating the second component A2, which is bonded by adhesive A3, from the first component A1. This allows for a more accurate adhesion test result based on the applied tensile force.

[0036] Figure 6 This is a schematic diagram of the structure of the base provided in an embodiment of the present invention, as shown below. Figure 6 As shown, in one embodiment, a protrusion 11 is formed on the base 1. It should be noted that the protrusion 11 can act as a stop for the first component A1 of the product A to be tested. When the connecting member 3 is moved away from the base 1, the protrusion 11 can prevent the first component A1 from moving with the connecting member 3, thus preventing the first component A1 from becoming inseparable from the second component A2, thereby preventing the test from failing. Furthermore, in conjunction with... Figure 4 and Figure 5As shown, there is a gap 6 between the contour piece 2 and the protrusion 11. It is easy to understand that when the first component A1 of the product to be tested A is fitted onto the contour piece 2, part of the first component A1 is located within the gap 6; that is, a portion of the first component A1 is held between the contour piece 2 and the protrusion 11. Therefore, by providing the gap 6, the first component A1 of the product to be tested A can be further positioned, thus ensuring the smooth conduct of the adhesion test and obtaining more accurate adhesion test results.

[0037] Combination Figure 4 and Figure 6 As shown, in one embodiment, a first contouring portion 12 is formed on the side of the protrusion 11 facing the contouring member 2, and the first contouring portion 12 matches the contouring member 2. It is readily understood that the first contouring portion 12, together with the contouring member 2, forms a gap 6 that matches the first component A1 of the product A to be tested, so that a portion of the first component A1 can be accurately fitted into the gap 6, thereby helping to maintain fixation during the test so that the adhesion test can be carried out smoothly.

[0038] Figure 7 This is a schematic diagram of the structure of the contouring component provided in the embodiment of the present invention, such as... Figure 7 As shown, in one embodiment, the contouring member 2 is configured as a duckbill-shaped structure. Specifically, as... Figure 7 As shown, the profiling part 2 includes a main body 21 and a mounting part 22 extending from the main body 21. The main body 21 is used to position and mount the first component A1 of the product A to be tested. Correspondingly, as... Figure 6 As shown, the base 1 has mounting holes 15, and the mounting part 22 of the profile 2 is disposed within the mounting holes 15 to mount the profile 2 onto the base 1. It should be noted that the mounting part 22 has a polygonal cross-section, and the mounting hole 15 corresponds to a polygonal hole. This ensures that when the connector 3 is moved away from the base 1, the profile 2 will not deflect due to external force, thus preventing the adhesion test from failing. Furthermore, the profile 2 is detachably mounted on the base 1 via the mounting part 22, allowing for the selection and replacement of profiles 2 with corresponding structures based on different test product A structures, enabling adhesion tests on different test products A.

[0039] like Figure 6 As shown, in one embodiment, the protrusion 11 is provided with a first clearance groove 13. Further, combined with... Figure 5 and Figure 6As shown, the connector 3 passes through the first clearance groove 13 and is fixedly connected to the second component A2. Thus, while ensuring the blocking function of the protrusion 11, the first clearance groove 13 ensures that the second component A2 can be separated from the first component A1 by external force, so as to successfully complete the adhesion test of the product A to be tested.

[0040] like Figure 6 As shown, in one embodiment, the base 1 is provided with a guide groove 14. Further, combined with... Figure 5 and Figure 6 As shown, the connector 3 is movably mounted on the base 1 via the guide groove 14. It should be noted that the guide groove 14 guides and limits the movement of the connector 3, ensuring that the direction of the force applied to the product A under test does not deviate, thus ensuring sufficient accuracy in the adhesion test results. It is readily understood that the guide groove 14 communicates with the first clearance groove 13 to ensure the connector 3 functions properly.

[0041] Figure 8 This is a structural schematic diagram of the connector provided in an embodiment of the present invention, as shown below. Figure 8 As shown, in one embodiment, the connector 3 is generally a rod-shaped structure, and the second end of the connector 3 protrudes to form a mating portion 31. Further, combined with... Figure 5 and Figure 8 As shown, connector 3 is detachably connected to movable base 4 via mating part 31. Therefore, when an adhesion test is required on product A, the first end of connector 3 can be fixedly connected to the second component A2 of product A, then the first component A1 of product A can be fitted onto the contour piece 2, and the mating part 31 can be detachably connected to movable base 4, thus allowing product A to be placed for the adhesion test. Figure 8 As shown, in one embodiment, a second contoured portion 32 is formed at the first end of the connector 3. It is readily understood that the second contoured portion 32 mates with the second component A2 of the product to be tested A in order to be fixedly connected to the second component A2.

[0042] Figure 9 This is a schematic diagram of the structure of the movable seat provided in an embodiment of the present invention, as shown below. Figure 9 As shown, in one embodiment, the movable seat 4 is provided with a docking groove 41. Further, in conjunction with... Figure 5 and Figure 9 As shown, the docking part 31 is disposed within the docking groove 41. It is easy to understand that, in this embodiment, the docking part 31, by cooperating with the docking groove 41, allows the second end of the connector 3 to be detachably connected to the movable base 4 by a snap-fit ​​mechanism, and the connection structure is simple and reliable.

[0043] like Figure 9As shown, in one embodiment, the movable seat 4 is provided with a second clearance groove 42. It is readily understood that the second clearance groove 42 communicates with the docking groove 41. For example... Figure 9 As shown, the second clearance groove 42 cooperates with the mating groove 41 to form a T-shaped groove on the movable seat 4, thereby matching the structure of the connecting member 3. Furthermore, combined with... Figure 5 and Figure 9 As shown, the second end of the connector 3 is engaged with the mating part 31 in the mating groove 41 via the second clearance groove 42. Thus, by providing the second clearance groove 42 and the mating groove 41, the second end of the connector 3 can be detachably connected to the movable base 4 by means of a snap-fit ​​connection.

[0044] This invention also provides an adhesion testing device, which includes an adhesion testing fixture. It should be noted that the structure of the adhesion testing fixture is as described above and will not be repeated here. Further, in one embodiment, the adhesion testing device also includes a driving component, a tensile sensor, and other components. Exemplarily, the driving component is connected to the movable base 4 to drive the movable base 4 to move away from the base 1, thereby allowing the second component A2 of the product to be tested, A1, to be separated from the first component A1 via the connecting component 3. Correspondingly, when the second component A2 separates from the first component A1, the adhesion test result of the product to be tested A can be obtained through the tensile sensor.

[0045] This invention provides an adhesion testing fixture and an adhesion testing device. The adhesion testing fixture includes a base, a contoured part, a connector, and a movable seat. The contoured part is fixedly mounted on the base and matches a first component of the product to be tested to position the first component, thereby reducing testing errors caused by deformation of the first component. The connector is movably mounted on the base, and its first end is fixedly connected to a second component of the product to be tested. The movable seat is detachably connected to the second end of the connector and has a gap with the base, thus avoiding additional tension on the product to be tested due to dimensional deviations during assembly. Therefore, when the movable seat moves away from the base, the connector can move the second component, thereby separating the bonded second component from the first component, enabling accurate adhesion testing of the product to be tested.

[0046] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. For those skilled in the art, the present invention can be modified and varied in various ways. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of the present invention should be included within the scope of protection of the present invention.

Claims

1. A cohesive force test fixture, characterized by, The bonding force testing jig comprises: a base (1) formed with a protrusion (11); a profiling piece (2) arranged in a duck-billed structure, the profiling piece (2) being fixedly arranged on the base (1), the profiling piece (2) being matched with a first component (A1) of a product (A) to be tested to positionally arrange the first component (A1), the protrusion (11) being formed with a first profiling portion (12) on a side facing the profiling piece (2), the first profiling portion (12) being matched with the profiling piece (2), and a gap (6) being formed between the profiling piece (2) and the first profiling portion (12), the gap (6) being matched with the first component (A1); a connecting piece (3) movably arranged on the base (1), a first end of the connecting piece (3) being fixedly connected with a second component (A2) of the product (A) to be tested; and a moving seat (4) having a gap (5) with the base (1), the moving seat (4) being detachably connected with a second end of the connecting piece (3), the moving seat (4) being configured to move towards a direction away from the base (1) and drive the second component (A2) through the connecting piece (3) to separate the second component (A2) bonded with the first component (A1).

2. The adhesion test fixture of claim 1, wherein, The protrusion (11) is provided with a first avoiding groove (13); The connecting piece (3) is fixedly connected with the second component (A2) through the first avoiding groove (13).

3. The adhesion testing fixture of claim 1, wherein, The base (1) is provided with a guide groove (14); The connecting piece (3) is movably arranged on the base (1) through the guide groove (14).

4. The adhesion testing fixture of claim 1, wherein, The second end of the connecting piece (3) is protrusively formed with a butt joint portion (31); The connecting piece (3) is detachably connected with the moving seat (4) through the butt joint portion (31).

5. The adhesion testing fixture of claim 4, wherein, The moving seat (4) is provided with a butt joint groove (41); The butt joint portion (31) is arranged in the butt joint groove (41).

6. The adhesion testing fixture of claim 5, wherein, The moving seat (4) is provided with a second avoiding groove (42) communicating with the butt joint groove (41); The second end of the connecting piece (3) makes the butt joint portion (31) clamped in the butt joint groove (41) through the second avoiding groove (42).

7. The adhesion testing fixture of claim 1, wherein, The first end of the connecting piece (3) is formed with a second profiling portion (32), the second profiling portion (32) being matched with and fixedly connected with the second component (A2).

8. A bond force testing device characterized by, The bonding force testing device comprises: The bonding force testing jig according to any one of claims 1-7. The bonding force testing device comprises:

Images