Scratch testing machine

Abstract

The utility model provides a scratch testing machine, which belongs to the technical field of material performance testing and comprises a base, a support column, a first driving component, a moving frame, a second driving component and a scratch head, the support column is movably connected with the base, the first driving component drives the support column to move relative to the base, the moving frame is movably connected with the support column, and the second driving component drives the scratch head to move relative to the base. The second driving assembly can drive the moving frame to move relative to the supporting column, the moving direction of the moving frame is perpendicular to the moving direction of the supporting column, and the first driving assembly and the second driving assembly work cooperatively and are responsible for driving the supporting column and the moving frame to move correspondingly, so that the scratching head is driven to move flexibly in multiple directions. By means of the mode, the scratching head can systematically and repeatedly conduct scratching in a designated area, and therefore the scratch tolerance test can be effectively completed. The scratching head is simple in structure, convenient to use and capable of achieving accurate back-and-forth scratching on the to-be-detected surface of a product.

Description

Technical Field

[0001] The utility model belongs to the technical field of material property testing, and relates to a scratch testing machine. Background Art

[0002] During the product development and production stages, especially for products that are prone to wear or scratches during daily use, such as display screens, vehicle exterior parts, solid insulation components, printed circuit boards, precision instrument panels, and the casings of high-end consumer goods, scratch detection plays a crucial role.

[0003] Different materials respond differently to scratches. When metals, plastics, glass, and composite materials are scratched, their ability to return to their original state, the visibility of the scratches, and the impact on the overall performance of the product all vary. Scratch detection can help engineers and designers select the most suitable materials for specific applications. By conducting scratch tests on different materials and coatings, producers can ensure their durability and resistance to harsh environments.

[0004] In summary, most current scratch tests still rely on manual operation. This method not only consumes a large amount of human resources but also has limitations in controlling the accuracy of scratches, making it difficult to achieve consistent and repeatable results, with low efficiency and significant room for improvement. Summary of the Invention

[0005] The purpose of the utility model is to address the above problems existing in the prior art and propose a scratch testing machine, comprising:

[0006] A base;

[0007] A support column movably connected to the base;

[0008] A first driving assembly disposed on the base, the support column being connected to the first driving assembly, and the first driving assembly being capable of driving the support column to move relative to the base;

[0009] A moving frame movably connected to the support column;

[0010] A second driving assembly disposed on the support column, the moving frame being connected to the second driving assembly, and the second driving assembly being capable of driving the moving frame to move relative to the support column, the moving direction of the moving frame being perpendicular to the moving direction of the support column;

[0011] A scratch head connected to the moving frame.

[0012] In the above-mentioned scratch testing machine, the first driving assembly includes a first driving shaft and a first motor. The first motor is connected to the base, the first driving shaft is connected to the first motor, the first driving shaft is provided with a first external thread portion, the support column is provided with a first internal thread portion, and the first external thread portion is threadedly connected to the first internal thread portion.

[0013] In the above-mentioned scratch testing machine, the second driving assembly includes a second driving shaft and a second motor. The second motor is connected to the support column, the second driving shaft is connected to the second motor, the second driving shaft is provided with a second external thread portion, the moving frame is provided with a second internal thread portion, and the second external thread portion is threadedly connected to the second internal thread portion.

[0014] In the above-mentioned scratch testing machine, a lifting frame is further included. The lifting frame is connected to the support column in a liftable manner, and the moving frame is connected to the support column through the lifting frame in a movable manner.

[0015] In the above-mentioned scratch testing machine, a support base is further included. The support base is movably connected to the base. The support base is provided with a lifting hole and a first fastener. The first fastener passes through the lifting hole and is threadedly connected to the lifting frame; the lifting hole is a strip-shaped hole, and the length direction of the lifting hole is distributed vertically.

[0016] In the above-mentioned scratch testing machine, an adjusting base is further included. The scratch head is connected to the moving frame through the adjusting base. The adjusting base is provided with a receiving hole, and the scratch head is movably connected to the receiving hole and can move along the axial direction of the receiving hole.

[0017] In the above-mentioned scratch testing machine, a second fastener is further included. The second fastener can be threadedly connected to the adjusting base, and the second fastener can pass through the adjusting base and extend into the receiving hole to abut against the scratch head.

[0018] In the above-mentioned scratch testing machine, a third fastener is further included. The adjusting base is provided with an adjusting hole, and the third fastener can pass through the adjusting hole and be threadedly connected to the moving frame.

[0019] In the above-mentioned scratch testing machine, the number of the third fasteners and the adjusting holes are both two. The two adjusting holes are concentric arc-shaped holes and are symmetrically distributed. The two third fasteners can respectively pass through the two adjusting holes and be threadedly connected to the moving frame.

[0020] In the above-mentioned scratch testing machine, the scratch head includes a sleeve, a replacement core, and a fourth fastener. The sleeve is provided with a receiving cavity, the replacement core is disposed in the receiving cavity, the fourth fastener can be threadedly connected to the sleeve, and the fourth fastener can pass through the sleeve and extend into the receiving cavity to abut against the replacement core.

[0021] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0022] 1. The first driving component and the second driving component work together, each responsible for driving the displacement of the support column and the moving frame, thereby driving the scratch head to move flexibly in multiple directions, ensuring that it can perform precise reciprocating strokes on the surface to be tested of the product. In this way, the scratch head can systematically repeat scribing in the specified area, effectively completing the scratch tolerance test, evaluating the scratch resistance of the material surface, realizing an automated and standardized scratch test process, and ensuring the accuracy and consistency of the test results.

[0023] 2. By appropriately adjusting the third fastener, the adjusting seat can be tilted in a certain direction, so that when the scratch head passes over the surface of the product, in addition to the vertical pressure, an additional lateral force will be applied, thereby simulating various lateral stress situations that may occur in the actual use environment, and obtaining more comprehensive and accurate test data.

[0024] 3. The fourth fastener is connected to the sleeve by threads to clamp the replacement core. This connection method makes the disassembly and installation of the replacement core simple and fast. This design is particularly beneficial for quickly replacing the matching replacement core when performing scratch tests on products of different materials, greatly improving the adaptability of the equipment to various test requirements. In addition, when the replacement core is worn due to use, it can also be easily replaced, ensuring the accuracy of the test and the continuous and efficient operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic diagram of the present utility model.

[0026] Figure 2 is Figure 1 an enlarged view of detail A in

[0027] Figure 3 is a schematic diagram of another perspective of the present utility model.

[0028] Figure 4 is Figure 3 an enlarged view of detail B in

[0029] In the figure:

[0030] 1. Base; 2. Support column; 3. First driving assembly; 31. First driving shaft; 311. First external thread portion; 4. Moving frame; 5. Second driving assembly; 51. Second driving shaft; 511. Second external thread portion; 52. Second motor; 6. Scratching head; 61. Sleeve; 62. Replacement core; 63. Fourth fastener; 7. Lifting frame; 8. Support base; 81. Lifting hole; 82. First fastener; 9. Adjusting base; 91. Second fastener; 92. Third fastener; 93. Adjusting hole. Detailed implementation manner

[0031] The following are specific embodiments of the present invention and in combination with the accompanying drawings, the technical solutions of the present invention will be further described, but the present invention is not limited to these embodiments.

[0032] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If this specific posture changes, then the directional indications will also change accordingly.

[0033] In addition, in the present invention, descriptions such as "first", "second", "one", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0034] In the present invention, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on what can be achieved by those of ordinary skill in the art. When the combination of technical solutions results in contradictions or cannot be achieved, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0036] The specific embodiments described herein are merely illustrative of the utility model patent. Those skilled in the art to which the utility model pertains may make various modifications or supplements to the described specific embodiments or use similar means for substitution, but will not deviate from the patent of the utility model or exceed the scope defined by the appended claims.

[0037] As Figures 1-4 shown, a scratch testing machine includes: a base 1, support columns 2, a first driving assembly 3, a moving frame 4, a second driving assembly 5, and a scratch head 6.

[0038] Among them, the support column 2 is movably connected to the base 1.

[0039] Among them, the first driving assembly 3 is arranged on the base 1, the support column 2 is connected to the first driving assembly 3, and the first driving assembly 3 can drive the support column 2 to move relative to the base 1.

[0040] Among them, the moving frame 4 is movably connected to the support column 2.

[0041] Among them, the second driving assembly 5 is arranged on the support column 2, the moving frame 4 is connected to the second driving assembly 5, the second driving assembly 5 can drive the moving frame 4 to move relative to the support column 2, and the moving direction of the moving frame 4 is perpendicular to the moving direction of the support column 2.

[0042] Among them, the scratch head 6 is connected to the moving frame 4.

[0043] In this embodiment, the first driving assembly 3 and the second driving assembly 5 work together, each responsible for driving the displacement of the support column 2 and the moving frame 4, thereby driving the scratch head 6 to move flexibly in multiple directions, ensuring that it can perform precise reciprocating strokes on the surface to be tested of the product. In this way, the scratch head 6 can systematically repeat scribing in the specified area, effectively completing the scratch tolerance test, evaluating the scratch resistance of the material surface, realizing an automated and standardized scratch test process, and ensuring the accuracy and consistency of the test results.

[0044] As Figures 1-4 shown, on the basis of the above embodiment, the first driving assembly 3 includes a first driving shaft 31 and a first motor (not shown in the figure). The first motor is connected to the base 1, the first driving shaft 31 is connected to the first motor, the first driving shaft 31 is provided with a first external thread portion 311, the support column 2 is provided with a first internal thread portion (not shown in the figure), and the first external thread portion 311 is threadedly connected to the first internal thread portion.

[0045] Specifically, the first drive motor drives the first drive shaft 31 to rotate, so that through the threaded connection between the first external thread portion 311 and the first internal thread portion, the support column 2 can move back and forth along the direction of the first drive shaft 31.

[0046] In this embodiment, driving by the first motor reduces the need for manual operation, improves efficiency, and due to the precise control ability of the first motor, fine adjustment can be achieved, increasing the accuracy of the movement of the support column 2. The rotational movement of the first motor is converted into the linear movement of the support column 2 through the threaded connection, making the movement of the support column 2 highly stable.

[0047] As Figures 1-4 shown, on the basis of the above embodiment, the second drive assembly 5 includes a second drive shaft 51 and a second motor 52. The second motor 52 is connected to the support column 2, the second drive shaft 51 is connected to the second motor 52, the second drive shaft 51 is provided with a second external thread portion 511, the moving frame 4 is provided with a second internal thread portion (not shown in the figure), and the second external thread portion 511 is in threaded connection with the second internal thread portion.

[0048] Specifically, the second drive motor drives the second drive shaft 51 to rotate, so that through the threaded connection between the second external thread portion 511 and the second internal thread portion, the moving frame 4 can move back and forth along the direction of the second drive shaft 51

[0049] In this embodiment, driving by the second motor 52 reduces the need for manual operation, improves efficiency, and due to the precise control ability of the second motor 52, fine adjustment can be achieved, increasing the accuracy of the movement of the moving frame 4. The rotational movement of the second motor 52 is converted into the linear movement of the moving frame 4 through the threaded connection, making the movement of the moving frame 4 highly stable.

[0050] As Figures 1-4 shown, on the basis of the above embodiment, a lifting frame 7 is further included. The lifting frame 7 is liftably connected to the support column 2, and the moving frame 4 is movably connected to the support column 2 through the lifting frame 7.

[0051] Specifically, one end of the lifting frame 7 is sleeved on the support column 2, so as to achieve lifting movement relative to the support column 2. The moving frame 4 is movably connected to the lifting frame 7, so as to achieve movement in the horizontal and vertical directions relative to the support column 2.

[0052] In this embodiment, while the lifting frame 7 is connected to the support column 2 in a liftable manner, the movable connection between the movable frame 4 and the lifting frame 7 further expands the movement range of the system, enabling it to move freely in the horizontal direction. With this design, the movable frame 4 can achieve multi-directional position adjustment in the horizontal and vertical directions, greatly enhancing the flexibility and practicality of the system.

[0053] As Figures 1-4 shown, on the basis of the above embodiment, it further includes a support base 8. The support base 8 is movably connected to the base 1. The support base 8 is provided with a lifting hole 81 and a first fastener 82. The first fastener 82 passes through the lifting hole 81 and is threadedly connected to the lifting frame 7. The lifting hole 81 is a strip-shaped hole, and the length direction of the lifting hole 81 is distributed vertically.

[0054] Specifically, the support base 8 is movably connected to the base 1, and the moving direction is the same as that of the support column 2. The end of the first fastener 82 can contact the support base 8, and the end tail of the first fastener 82 passes through the lifting hole 81 and is threadedly connected to the lifting frame 7. When the height of the lifting frame 7 needs to be adjusted, only need to rotate the first fastener 82 to separate the end of the first fastener 82 from the support frame. When the lifting frame 7 is adjusted to the required height, rotate the first fastener in the reverse direction again to make the end of the first fastener 82 contact the support base 8 to fix the lifting frame 7.

[0055] In this embodiment, by rotating the first fastener 82 to unlock and lock the height of the lifting frame 7, this design is simple to operate and improves the use efficiency of the user.

[0056] As Figures 1-4 shown, on the basis of the above embodiment, it further includes an adjustment base 9. The scratch head 6 is connected to the movable frame 4 through the adjustment base 9. The adjustment base 9 is provided with a receiving hole (not shown in the figure), and the scratch head 6 is movably connected to the receiving hole and can move along the axial direction of the receiving hole.

[0057] In this embodiment, by finely adjusting the vertical position of the scratch head 6 in the receiving hole, precise control of the pressure exerted by the scratch head 6 on the surface to be tested of the product can be achieved. This fine-tuning ability enables the tester to select the most suitable contact pressure according to different test requirements and sample characteristics, which not only improves the accuracy of the scratch test, but also enhances the adaptability and effectiveness of the test method, and is applicable to the scratch tolerance evaluation of various materials and application scenarios.

[0058] As Figures 1-4As shown, on the basis of the above-described embodiment, it further includes a second fastener 91. The second fastener 91 can be threadedly connected to the adjusting seat 9. The second fastener 91 can pass through the adjusting seat 9 and extend into the receiving hole and abut against the scratch head 6.

[0059] Specifically, the second fastener 91 is connected to the adjusting seat 9 by threads, and its telescoping in the receiving hole can be controlled by rotating the second fastener 91. When the second fastener 91 is screwed into the receiving hole, the second fastener 91 will contact and apply pressure to one side of the scratch head 6, forcing the other side of the scratch head 6 to closely fit against the side wall of the receiving hole, thereby fixing the position of the scratch head 6.

[0060] In this embodiment, the second fastener 91 controls the position of the scratch head 6, which can ensure that the scratch head 6 can be stably maintained at a preset height and angle during the scratch test, thereby achieving precise and consistent control of the scratch depth and pressure.

[0061] As Figures 1-4 shown, on the basis of the above-described embodiment, it further includes a third fastener 92. The adjusting seat 9 is provided with an adjusting hole 93. The third fastener 92 can pass through the adjusting hole 93 and be threadedly connected to the moving frame 4.

[0062] Specifically, the third fastener 92 passes through the adjusting hole 93 on the adjusting seat 9. By adjusting its position in the adjusting hole 93, the tilting angle of the adjusting seat 9 can be directly controlled.

[0063] In this embodiment, by appropriately adjusting the third fastener 92, the adjusting seat 9 can be tilted in a certain direction, so that when the scratch head 6 slides across the product surface, in addition to the vertical pressure, an additional lateral force will be applied, thereby simulating various lateral stress situations that may occur in the actual use environment, and thus obtaining more comprehensive and accurate test data.

[0064] As Figures 1-4 shown, on the basis of the above-described embodiment, both the number of the third fasteners 92 and the adjusting holes 93 is two. The two adjusting holes 93 are concentric arc-shaped holes and are symmetrically distributed. The two third fasteners 92 can respectively pass through the two adjusting holes 93 and be threadedly connected to the moving frame 4.

[0065] In this embodiment, the two adjusting holes 93 are concentric arcs and are distributed symmetrically, ensuring the balance of the scratch head 6 during adjustment, avoiding tilting or instability phenomena that may be caused by single-sided adjustment, and thus improving the accuracy and consistency of the scratch test.

[0066] As Figures 1-4As shown, on the basis of the above embodiments, the scratch head 6 includes a sleeve 61, a replacement core 62, and a fourth fastener 63. The sleeve 61 is provided with a receiving cavity (not shown in the figure). The replacement core 62 is disposed in the receiving cavity. The fourth fastener 63 can be threadedly connected to the sleeve 61. The fourth fastener 63 can pass through the sleeve 61 and extend into the receiving cavity to abut against the replacement core 62.

[0067] Specifically, after the fourth fastener 63 is threadedly connected to the sleeve 61 and extends into the receiving cavity to abut against the replacement core 62, the other side of the replacement core 62 is pushed to contact the side wall of the receiving cavity, thereby fixing the replacement core 62. Alternatively, two fourth fasteners 63 extend into the receiving cavity from both sides of the sleeve 61 and respectively abut against both sides of the replacement core 62, thereby fixing the replacement core 62.

[0068] In this embodiment, the fourth fastener 63 is connected to the sleeve 61 by a thread to clamp the replacement core 62. This connection method makes the disassembly and installation of the replacement core 62 simple and fast. This design is particularly beneficial for quickly replacing the matching replacement core 62 when performing scratch tests on products of different materials, greatly improving the adaptability of the device to various test requirements. In addition, when the replacement core 62 is worn due to use, it can also be easily replaced, ensuring the accuracy of the test and the continuous and efficient operation of the device.

Claims

1. A scratch testing machine, characterized in that, include: Base; a support column movably connected to the base; A first driving assembly, which is disposed on the base, the support column is connected to the first driving assembly, and the first driving assembly can drive the support column to move relative to the base; A movable frame movably connected to the support column; A second driving assembly is disposed on the support column, the mobile frame is connected to the second driving assembly, and the second driving assembly can drive the mobile frame to move relative to the support column, and the moving direction of the mobile frame is perpendicular to the moving direction of the support column; A scratching head is connected with the moving frame.

2. The scratch testing machine according to claim 1, wherein: The first driving assembly includes a first driving shaft and a first motor, the first motor is connected to the base, the first driving shaft is connected to the first motor, the first driving shaft is provided with a first external threaded portion, the support column is provided with a first internal threaded portion, and the first external threaded portion is threadedly connected to the first internal threaded portion.

3. The scratch testing machine according to claim 2, characterized in that: The second driving assembly includes a second driving shaft and a second motor, the second motor is connected to the support column, the second driving shaft is connected to the second motor, the second driving shaft is provided with a second external threaded portion, the movable frame is provided with a second internal threaded portion, and the second external threaded portion is threadedly connected to the second internal threaded portion.

4. The scratch testing machine according to claim 3, wherein: It also includes a lifting frame, which is movably connected to the support column, and the movable frame is movably connected to the support column through the lifting frame.

5. The scratch testing machine according to claim 4, characterized in that: It also includes a support seat, which is movably connected to the base, and the support seat is provided with a lifting hole and a first fastener, and the first fastener passes through the lifting hole and is threadedly connected to the lifting frame; the lifting hole is a strip hole, and the length direction of the lifting hole is distributed vertically.

6. The scratch testing machine according to claim 1, characterized in that: It also includes an adjustment seat, through which the scratching head is connected to the moving frame, and the adjustment seat is provided with a receiving hole, and the scratching head is movably connected to the receiving hole and can move along the axial direction of the receiving hole.

7. The scratch testing machine according to claim 6, characterized in that: It also includes a second fastener, which can be threadedly connected to the adjustment seat, and the second fastener can pass through the adjustment seat, extend into the receiving hole, and interfere with the scratching head.

8. The scratch testing machine according to claim 6, wherein: It also includes a third fastener. The adjustment seat is provided with an adjustment hole. The third fastener can pass through the adjustment hole and be threadedly connected to the moving frame.

9. The scratch testing machine according to claim 8, wherein: The number of the third fasteners and the number of the adjustment holes are both two, the two adjustment holes are concentric arc holes and are symmetrically distributed, and the two third fasteners can respectively pass through the two adjustment holes and be threadedly connected to the movable frame.

10. A scratch testing machine according to claim 1, characterized in that: The scratching head includes a sleeve, a replacement core and a fourth fastener, the sleeve is provided with a receiving cavity, the replacement core is arranged in the receiving cavity, the fourth fastener can be threadedly connected with the sleeve, the fourth fastener can pass through the sleeve, extend into the receiving cavity and interfere with the replacement core.

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