Evaluation device for adhesive force of oxidized surface of aluminum plate
By designing an aluminum plate oxidation surface adhesion evaluation device with guide rollers and adjustment rods, the problem that the existing device cannot adjust the tension angle is solved, and the accurate evaluation of the adhesion of the aluminum plate oxidation layer is achieved.
Patent Information
- Application Number
- CN202421377561.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-17
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-06-17
AI Technical Summary
The existing tensile test devices cannot adjust the tension angle, resulting in inaccurate test results.
An evaluation device for the oxidized surface adhesion of aluminum plate is designed, including a base, a clamping seat, a lifting device, a tension gauge, an adjustment rod and a guide roller. Through the mating of the guide roller and the adjustment rod, the angle between the tape and the aluminum plate can be adjusted, and the angle can be maintained stable during the stretching process.
Accurate evaluation of the adhesion of the aluminum plate oxide layer is achieved, and the accuracy and reliability of the test results are improved.
Smart Images
Figure CN223005983U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of test equipment, in particular to an evaluation device for the adhesion of an aluminum plate oxidation surface. Background Art
[0002] The aluminum oxide layer on the surface of the aluminum plate can improve the corrosion resistance of the aluminum plate, and at the same time, it will also affect the adhesion of the subsequent coating layer and the performance of the overall coating. Therefore, it is particularly important to evaluate the adhesion of the aluminum oxide layer on the aluminum plate surface.
[0003] Conventional adhesion evaluations include the cross-cut method, the pull-off method, and the tape method. These methods can be used to evaluate the adhesion performance between the coating and the aluminum plate oxide layer. However, the pretreatment steps of these methods are relatively cumbersome, the coating systems to be evaluated need to be clear, and the obtained evaluation results have poor compatibility. There is currently a scheme for performing a tensile test using a tape. This method is simple to operate, can be quantitatively evaluated, and can be applied to the surfaces of aluminum plates with various different oxidation treatments. When the existing tensile test device performs a tensile test, the tensile angle cannot be adjusted. Some angle adjustments performed by simple lateral displacement cannot adapt to the angle changes during the tensile test, and there will be deviations in the tensile force transmission results, resulting in inaccurate test results.
[0004] In view of this, how to provide an adhesion evaluation device that can adjust the tensile angle has become one of the motor technology problems to be solved urgently at present. Summary of the Utility Model
[0005] In view of this, the utility model provides an evaluation device for the adhesion of an aluminum plate oxidation surface, aiming to provide an adhesion evaluation device that can adjust the angle.
[0006] The technical solution of the utility model is realized as follows: The utility model provides an evaluation device for the adhesion of an aluminum plate oxidation surface, including: a base, a first clamping seat, a second clamping seat, a lifting device, a tensiometer, an adjusting rod, and a guide roller. The lifting device is fixed on the upper surface of the base, and the lifting device can drive its driving end to move up and down in the vertical direction. The tensiometer is fixed below the driving end of the lifting device. The second clamping seat is fixed below the tensiometer. The first clamping seat is fixed on the upper surface of the base and is arranged opposite to the second clamping seat. One end of the adjusting rod is rotatably connected to the driving end of the lifting device, and the other end of the adjusting rod is connected with a guide roller. The guide roller is horizontally arranged between the first clamping seat and the second clamping seat.
[0007] In the above-described embodiments, the first clamping seat is used to clamp and fix the aluminum plate attached with the tape, the second clamping seat is used to clamp and fix the free end of the tape, and the lifting device provides a pulling force on the tape, so that the tape is separated from the aluminum plate. The tensiometer can measure and record the tensile stress generated during the pulling process. The adjusting rod is used to support the guide roller and can adjust the position of the guide roller at the same time. The guide roller is used to support the tape for measurement, so that the angle between the tape and the aluminum plate is changed to meet different test requirements. Moreover, the guide roller rises synchronously with the driving end of the lifting device. During the process of pulling and separating the tape on the surface of the aluminum plate, the position of the separation point is the same as the rising speed of the driving end of the lifting device. Therefore, the angle between the tape and the aluminum plate can be maintained stable.
[0008] In some embodiments, it further includes a first pin shaft, a first bushing and a first fastening bolt. The first bushing is fixed to the driving end of the lifting device. The first pin shaft is coaxially rotatably arranged in the first bushing. The axis of the first pin shaft is horizontally arranged. The first fastening bolt is screwed on the first bushing and can selectively press against the side surface of the first pin shaft. One end of the adjusting rod away from the guide roller is connected to the first pin shaft.
[0009] In the above-described embodiments, the first pin shaft can rotate in the first bushing, so that the adjusting rod rotates together therewith. During the rotation of the adjusting rod, the position of the guide roller connected thereto can be changed. By changing the position of the guide roller, the angle formed between the tape passing through the guide roller and the surface of the aluminum plate can be changed. The first fastening bolt is used to selectively press against the first pin shaft, so that the position of the first pin shaft relative to the first bushing can be fixed. When adjustment is required, loosen the first fastening bolt to reduce the contact friction between the first pin shaft and the first bushing. It should be understood that the plane where the aluminum plate clamped on the second clamping seat is located should be parallel to the axis of the guide roller and the axis of the first pin shaft.
[0010] In the above embodiments, the guide roller is rotatably arranged at the end of the adjusting rod, so that the friction of the tape passing through the surface of the guide roller during movement can be effectively reduced.
[0011] In some embodiments, it further includes a second fastening bolt. A through hole is radially formed at one end of the first pin shaft away from the first bushing. One end of the adjusting rod away from the guide roller is slidably arranged in the through hole. The second fastening bolt is screwed on the surface of the first pin shaft and can selectively press against the surface of the adjusting rod.
[0012] In the above embodiments, the function of the second fastening bolt is to enable the position of the adjusting rod relative to the first pin shaft to be changed or fixed. By sliding in the through hole, the distance between the end of the adjusting rod provided with the guide roller and the first pin shaft can be adjusted, so as to adapt to the evaluation of aluminum plates of different sizes. At the same time, changing the distance between the guide roller and the first pin shaft can realize more adjustability of the angle between the tape and the aluminum plate.
[0013] In some embodiments, the first clamping seat includes a first bottom plate, a first sliding plate and a first screw rod. A first clamping surface in the vertical direction is provided at the upper end of the first bottom plate. The first screw rod is screwed on the first bottom plate. One end of the first screw rod close to the first clamping surface is rotatably connected to the first sliding plate. A second clamping surface in the vertical direction is provided on one side of the first sliding plate close to the first clamping surface. The axis of the first screw rod is perpendicular to the first clamping surface. The first bottom plate is fixed on the upper surface of the base.
[0014] In the above embodiments, the first screw rod is horizontally arranged, which is used to adjust the position of the first sliding plate in the horizontal direction, so as to change the distance between the first clamping surface and the second clamping surface. Through the adjustment of this distance, the clamping or loosening of the aluminum plate to be measured is realized. The aluminum plate is clamped by the contact surface, and the contact area is large, and the clamping effect is good.
[0015] In some embodiments, the second clamping seat includes a second bottom plate, a second sliding plate and a second screw rod. A third clamping surface in the vertical direction is provided at the lower end of the second bottom plate. The second screw rod is screwed on the second bottom plate. One end of the second screw rod close to the third clamping surface is rotatably connected to the second sliding plate. A fourth clamping surface in the vertical direction is provided on one side of the second sliding plate close to the third clamping surface. The axis of the second screw rod is perpendicular to the third clamping surface. The second bottom plate is fixed below the dynamometer.
[0016] In the above embodiments, the second screw rod is horizontally arranged. The second screw rod is used to adjust the position of the second sliding plate in the horizontal direction, so as to change the distance between the third clamping surface and the fourth clamping surface. Through the adjustment of this distance, the clamping or loosening effect of the tape is realized. Since the thickness dimension of the tape is small, the clamping effect of conventional clamping parts on it is not good, which easily leads to uneven stress, is not conducive to the stable shape and uniform stress of the tape. Therefore, the third clamping surface on the second bottom plate and the fourth clamping surface on the second sliding plate are used to clamp the tape, and the effect is better.
[0017] In some embodiments, preferably, an elastic film is fixedly installed on the surface of the fourth clamping surface and / or the surface of the third clamping surface. Through the elastic film, a larger contact surface can be formed with the tape, avoiding stress concentration and damage to the tape caused by the rigid contact surface.
[0018] In some embodiments, the first clamping surface and the third clamping surface are in the same plane.
[0019] The above embodiments are preferably structured, which can keep the tape from deflecting and twisting during the tensile test.
[0020] In some embodiments, the axis of the guide roller is parallel to the first clamping surface.
[0021] In the above embodiments, the axis of the guide roller is parallel to the first clamping surface, which is also beneficial to maintaining the stable force of the tape during the tensile test and preventing it from deflecting and twisting.
[0022] The utility model has the following beneficial effects compared with the prior art:
[0023] The utility model provides an evaluation device for the adhesion of the oxidized surface of an aluminum plate with a more reasonable design. By arranging a guide roller between the second clamping seat for clamping the tape and the first clamping seat for clamping the aluminum plate, the belt stretched during the tensile test is supported and guided, thereby changing the angle between the tape and the aluminum plate. Moreover, the guide roller and the adjusting rod move synchronously with the second clamping seat. Therefore, during the stretching process, the angle between the tape and the aluminum plate can be effectively maintained stable and is not affected by the test process. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0025] Figure 1 Isometric view of the evaluation device of the present utility model;
[0026] Figure 2 Isometric view of the first clamping seat in the evaluation device of the present utility model;
[0027] Figure 3 Isometric view of the first clamping seat from another perspective in the evaluation device of the present utility model;
[0028] Figure 4 Isometric view of the guide roller part in the evaluation device of the present utility model;
[0029] Figure 5 Exploded view of the guide roller part in the evaluation device of the present utility model;
[0030] Figure 6 Isometric view of the second clamping seat in the evaluation device of the present utility model;
[0031] Figure 7 Isometric view of the second clamping seat from another perspective in the evaluation device of the present utility model.
[0032] In the figure: 1 - base, 2 - first clamping seat, 3 - second clamping seat, 4 - lifting device, 5 - tensiometer, 6 - adjusting rod, 7 - guide roller, 8 - first pin shaft, 9 - first bushing, 10 - first fastening bolt, 11 - second fastening bolt, 41 - driving end, 81 - through hole, 21 - first bottom plate, 2 - first sliding plate, 23 - first screw rod, 211 - first clamping surface, 221 - second clamping surface, 31 - second bottom plate, 32 - second sliding plate, 33 - second screw rod, 311 - third clamping surface, 321 - fourth clamping surface. Detailed implementation mode
[0033] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in 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.
[0034] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0035] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present application.
[0036] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more, unless otherwise specifically defined.
[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the embodiments of the present invention belong. If the definitions stated in this section are contrary to or otherwise inconsistent with the definitions stated in the patents, patent applications, published patent applications, and other publications incorporated herein by reference, the definitions listed in this section shall prevail over the definitions incorporated herein by reference.
[0038] As Figure 1 shown, in combination with Figures 2-7 , the evaluation device for the adhesion of the aluminum plate oxidation surface of the present utility model includes: a base 1, a first clamping seat 2, a second clamping seat 3, a lifting device 4, a tensiometer 5, an adjusting rod 6, and a guide roller 7. The lifting device 4 is fixed on the upper surface of the base 1, and the lifting device 4 can drive its driving end 41 to move up and down in the vertical direction. The tensiometer 5 is fixed below the driving end 41 of the lifting device 4. The second clamping seat 3 is fixed below the tensiometer 5. The first clamping seat 2 is fixed on the upper surface of the base 1 and is disposed opposite to the second clamping seat 3. One end of the adjusting rod 6 is rotatably connected to the driving end 41 of the lifting device 4, and the other end of the adjusting rod 6 is connected with a guide roller 7. The guide roller 7 is horizontally disposed between the first clamping seat 2 and the second clamping seat 3.
[0039] In the above embodiments, the lifting device 4 is a linear module, the driving end 41 is a slider of the linear module. The first clamping seat 2 is used for clamping the aluminum plate pasted with the tape, the second clamping seat 3 is used for clamping the free end of the tape pasted on the aluminum plate, the adjusting rod 6 is used for supporting the guide roller 7, and the guide roller 7 is used for laterally supporting the tape between the first clamping seat 2 and the second clamping seat 3, so as to form a target angle between the tape and the aluminum plate. Rotating the adjusting rod 6 can change the position of the guide roller 7, thereby changing the target angle. When the lifting device 4 drives its driving end 41 to rise, the second clamping seat 3 clamps the free end of the tape and rises, so that the tape is separated from the aluminum plate. The tensiometer 5 detects the tensile stress of the tape to obtain a tensile result, and the adhesion of the aluminum plate surface can be evaluated through the tensile value.
[0040] The main difference between the above embodiments and the conventional adhesion evaluation device is that a guide roller 7 and an adjusting rod 6 connected to the guide roller 7 are provided. The guide roller 7 can laterally support the tape and can move together with the driving end 41, so that the angle between the tape and the aluminum plate remains stable during the movement. The adjusting rod 6 can change the position of the guide roller 7, so that the angle between the tape and the aluminum plate can be changed, which can meet different evaluation requirements.
[0041] In some embodiments, it further includes a first pin shaft 8, a first bushing 9, and a first fastening bolt 10. The first bushing 9 is fixed to the driving end 41 of the lifting device 4. The first pin shaft 8 is coaxially and rotatably arranged in the first bushing 9. The axis of the first pin shaft 8 is horizontally arranged. The first fastening bolt 10 is screwed onto the first bushing 9 and can selectively press against the side surface of the first pin shaft 8. One end of the adjusting rod 6 away from the guide roller 7 is connected to the first pin shaft 8.
[0042] In the above embodiments, in order to enable the adjusting rod 6 to rotate and adjust relative to the driving end 41, a first bushing 9 is provided on the surface of the driving end 41. The first pin shaft 8 is rotatably arranged in the first bushing 9. The adjusting rod 6 connected to the first pin shaft 8 can thus rotate relative to the driving end 41. Preferably, the axis of the first pin shaft 8 is horizontally arranged, and the axis of the first pin shaft 8 should be parallel to the plane where the aluminum plate to be measured is located. The first fastening bolt 10 penetrates through the side surface of the first bushing 9 and is screwed onto the first bushing 9. By rotating the first fastening bolt 10, the side surface of the first pin shaft 8 located in the first bushing 9 can be selectively pressed against or loosened, thereby realizing the fixing or loosening of the first pin shaft 8.
[0043] In some embodiments, it further includes a second fastening bolt 11. A through hole 81 is radially formed at one end of the first pin shaft 8 away from the first bushing 9. One end of the adjusting rod 6 away from the guide roller 7 is slidably arranged in the through hole 81. The second fastening bolt 11 is screwed onto the surface of the first pin shaft 8 and can selectively press against the surface of the adjusting rod 6.
[0044] In the above embodiments, the adjusting rod 6 slides in the through hole 81, which can change the distance between the guide roller 7 and the first bushing 9. By the second fastening bolt 11, the fastening connection or loosening of the adjusting rod 6 relative to the first pin shaft 8 can be selectively adjusted. When changing the distance between the guide roller 7 and the first bushing 9, the rotation radius of the guide roller 7 relative to the first pin shaft 8 can be changed, and the relative position of the guide roller 7 can also be changed. For different aluminum plates to be measured, when the sizes are different and the angles to be tested are different, the adjustable freedom of the position of the guide roller 7 becomes more important. The above solution can provide a higher adjustable freedom for the guide roller 7. The axis of the above through hole 81 is perpendicular to the axis of the first pin shaft 8. Therefore, the adjusting rod 6 can rotate in a certain plane in the vertical direction. Preferably, this vertical plane is perpendicular to the plane where the aluminum plate is located. At this time, after rotation adjustment, the guide roller 7 can still be kept parallel to the plane where the aluminum plate is located.
[0045] In some embodiments, the first clamping seat 2 includes a first base plate 21, a first sliding plate 22, and a first screw 23. The upper end of the first base plate 21 is provided with a first clamping surface 211 in the vertical direction. The first screw 23 is screwed onto the first base plate 21. One end of the first screw 23 close to the first clamping surface 211 is rotatably connected to the first sliding plate 22. One side of the first sliding plate 22 close to the first clamping surface 211 is provided with a second clamping surface 221 in the vertical direction. The axis of the first screw 23 is perpendicular to the first clamping surface 211. The first base plate 21 is fixed on the upper surface of the base 1.
[0046] In the above embodiments, when the first screw 23 rotates, the first sliding plate 22 can be adjusted to slide in the horizontal direction, so as to change the distance between the first clamping surface 211 and the second clamping surface 221, and realize the clamping or loosening of the aluminum plate located between the two. It should be understood that the above first clamping surface 211 and second clamping surface 221 do not clamp the tape on the aluminum plate.
[0047] In some embodiments, the second clamping seat 3 includes a second base plate 31, a second sliding plate 32, and a second screw 33. The lower end of the second base plate 31 is provided with a third clamping surface 311 in the vertical direction. The second screw 33 is screwed onto the second base plate 31. One end of the second screw 33 close to the third clamping surface 311 is rotatably connected to the second sliding plate 32. One side of the second sliding plate 32 close to the third clamping surface 311 is provided with a fourth clamping surface 321 in the vertical direction. The axis of the second screw 33 is perpendicular to the third clamping surface 311. The second base plate 31 is fixed below the tensiometer 5.
[0048] In the above embodiments, when the second screw 33 rotates, the second sliding plate 32 can be adjusted to slide in the horizontal direction, so as to change the distance between the third clamping surface 311 and the fourth clamping surface 321, and realize the clamping or loosening of the tape located between the two.
[0049] In some embodiments, the first clamping surface 211 and the third clamping surface 311 are in the same plane.
[0050] In the above embodiments, being in the same plane can keep the initial state of the clamped tape straight. If there is no need for the guide roller 7 to intervene to change the angle, the influence brought by the angle change can be avoided to the greatest extent at this time, thereby improving the detection accuracy.
[0051] In some embodiments, the axis of the guide roller 7 is parallel to the first clamping surface 211.
[0052] The above embodiments as preferred embodiments can ensure that the surface of the tape is flat during the test and evaluation process, avoiding distortion or warping, which is beneficial to reducing errors.
[0053] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. An evaluation device for the adhesion of an oxidized surface of an aluminum plate, characterized in that: include: A base (1), a first clamping seat (2), a second clamping seat (3), a lifting device (4), a tensile gauge (5), an adjusting rod (6) and a guide roller (7); the lifting device (4) is fixed on the upper surface of the base (1); the lifting device (4) can drive its driving end (41) to move up and down in a vertical direction; the tensile gauge (5) is fixed below the driving end (41) of the lifting device (4); the second clamping seat (3) is fixed below the tensile gauge (5); the first clamping seat (2) is fixed on the upper surface of the base (1) and is arranged opposite to the second clamping seat (3); one end of the adjusting rod (6) can be rotatably connected to the driving end (41) of the lifting device (4); the other end of the adjusting rod (6) is connected to the guide roller (7); the guide roller (7) is horizontally arranged between the first clamping seat (2) and the second clamping seat (3).
2. The device for evaluating the adhesion of the oxidized surface of an aluminum plate according to claim 1, characterized in that: It also includes a first pin shaft (8), a first sleeve (9) and a first fastening bolt (10), wherein the first sleeve (9) is fixed to the driving end (41) of the lifting device (4), the first pin shaft (8) is coaxially rotatably arranged in the first sleeve (9), the axis of the first pin shaft (8) is arranged horizontally, the first fastening bolt (10) is screwed on the first sleeve (9) and can selectively tighten the side of the first pin shaft (8), and the end of the adjusting rod (6) away from the guide roller (7) is connected to the first pin shaft (8).
3. The device for evaluating the adhesion of the oxidized surface of an aluminum plate according to claim 2, characterized in that: It also includes a second fastening bolt (11), a through hole (81) is radially opened at one end of the first pin shaft (8) away from the first sleeve (9), and an end of the adjusting rod (6) away from the guide roller (7) is slidably arranged in the through hole (81), and the second fastening bolt (11) is screwed on the surface of the first pin shaft (8) and can be selectively tightened on the surface of the adjusting rod (6).
4. The device for evaluating the adhesion of the oxidized surface of an aluminum plate according to claim 3, characterized in that: The first clamping seat (2) comprises a first base plate (21), a first sliding plate (22) and a first screw rod (23); a first clamping surface (211) in a vertical direction is provided at the upper end of the first base plate (21); the first screw rod (23) is screwed onto the first base plate (21); one end of the first screw rod (23) close to the first clamping surface (211) is rotatably connected to the first sliding plate (22); a second clamping surface (221) in a vertical direction is provided on one side of the first sliding plate (22) close to the first clamping surface (211); the axis of the first screw rod (23) is perpendicular to the first clamping surface (211); and the first base plate (21) is fixed to the upper surface of the base (1).
5. The device for evaluating the adhesion of the oxidized surface of an aluminum plate according to claim 4, characterized in that: The second clamping seat (3) comprises a second base plate (31), a second sliding plate (32) and a second screw rod (33); a third clamping surface (311) in a vertical direction is provided at the lower end of the second base plate (31); the second screw rod (33) is screwed onto the second base plate (31); one end of the second screw rod (33) close to the third clamping surface (311) is rotatably connected to the second sliding plate (32); a side of the second sliding plate (32) close to the third clamping surface (311) is provided with a fourth clamping surface (321) in a vertical direction; the axis of the second screw rod (33) is perpendicular to the third clamping surface (311); and the second base plate (31) is fixed below the dynamometer (5).
6. The device for evaluating the adhesion of the oxidized surface of an aluminum plate according to claim 5, characterized in that: The first clamping surface (211) and the third clamping surface (311) are in the same plane.
7. The device for evaluating the adhesion of the oxidized surface of an aluminum plate according to claim 6, characterized in that: The axis of the guide roller (7) is parallel to the first clamping surface (211).