Scratching device for anti-corrosion coating stripping test

Abstract

The invention discloses a scribing device for an anti-corrosion coating stripping test, relates to the technical field of anti-corrosion coating stripping tests, and aims to solve the problem of improving the accuracy of an anti-corrosion coating stripping test result. The scribing device comprises a bearing table, a positioning assembly, a driving assembly and a scribing assembly. The bearing table is used for bearing samples. The positioning assembly is connected to the bearing table and used for clamping and positioning the sample. The scribing assembly is arranged above the bearing table and used for cutting the anti-corrosion coating of the sample, and the driving assembly is connected with the scribing assembly and used for driving the scribing assembly to move so as to cut the anti-corrosion coating of the sample. The scribing device is used for cutting the scribing line, so that the precision of the scribing line can be effectively improved, the cutting quality of a sample is further improved, and the accuracy of a subsequent anti-corrosion coating stripping test result is ensured.

Description

Technical Field

[0001] This application relates to the field of anti-corrosion coating peeling test technology, and in particular to a scribing device for anti-corrosion coating peeling test. Background Technology

[0002] To improve the corrosion resistance of metal parts, an anti-corrosion coating is typically applied to the surface of the parts to isolate them from air or corrosive liquids, preventing corrosion. The tighter the bond between the anti-corrosion coating and the metal substrate, the better the coating's ability to prevent corrosion. To test the tightness of this bond, a peel test can be performed on a plate-like substrate coated with the anti-corrosion coating. This test involves cutting multiple radial lines through the anti-corrosion layer onto the sample surface, allowing the coating to be peeled off between any two lines to assess the strength of the bond.

[0003] In existing technologies, cutting and scribing lines on the sample surface is achieved by the tester holding a grinder or cutter and making the cuts. This cutting method is prone to significant errors due to the difficulty for the tester to keep the grinder or cutter stable, thus affecting the accuracy of the anti-corrosion coating peeling test results. Summary of the Invention

[0004] The purpose of this application is to provide a scribing device for anti-corrosion coating peel test, aiming to solve the problem of how to improve the accuracy of anti-corrosion coating peel test results.

[0005] To achieve the above objectives, this application adopts the following technical solution: This application provides a scribing device for a peel test of an anti-corrosion coating, comprising a support platform, a positioning component, a driving component, and a scribing component. The support platform is used to support a sample. The positioning component is connected to the support platform and is used to clamp and position the sample. The scribing component is disposed above the support platform and is used to cut the anti-corrosion coating of the sample. The driving component is connected to the scribing component and is used to drive the scribing component to move, thereby cutting the anti-corrosion coating of the sample.

[0006] The scribing apparatus provided in this application provides stable support for the sample by setting a support platform, laying the foundation for further scribing lines on the sample surface. By setting a positioning component and connecting it to the support platform, the sample can be easily positioned on the support platform. Furthermore, by clamping the sample with the positioning component, the sample can be securely placed on the support platform, preventing displacement of the sample relative to the support platform when the scribing component is used to process the sample surface. This improves the straightness of the scribing lines and avoids excessively large or small angles between adjacent scribing lines. The scribing component enables cutting of the sample surface. By setting a driving component and connecting it to the scribing component, the scribing component can be driven to move on the sample surface, allowing the scribing component to accurately cut the scribing lines required for the anti-corrosion coating peel test on the sample surface. The force applied by the driving component to the scribing component is relatively stable, ensuring consistent cutting depth for different scribing lines. Compared to manual operation, the scribing device of this application can effectively improve the accuracy of the scribing line, thereby improving the cutting quality of the sample and ensuring the accuracy of the subsequent anti-corrosion coating peeling test results.

[0007] In some embodiments, the positioning component includes a first positioning structure and a second positioning structure spaced apart along a first direction, the first direction being perpendicular to the arrangement direction of the scribing component and the support stage, and the sample is adapted to be positioned between the first positioning structure and the second positioning structure. Both the first positioning structure and the second positioning structure are movable relative to the support stage along the first direction to clamp and position the sample.

[0008] By configuring the positioning component, which includes a first positioning structure and a second positioning structure spaced apart along a first direction, and both the first and second positioning structures being movable relative to the support platform along the first direction, with the sample positioned between the first and second positioning structures, the sample can be limited from opposite sides after being placed on the support platform. This allows for simultaneous positioning and clamping of the sample by the positioning component, ensuring the sample is in an appropriate position on the support platform and preventing displacement of the sample relative to the support platform when the scribing component cuts the sample surface. Furthermore, the movable nature of both the first and second positioning structures relative to the support platform along the first direction makes the positioning component suitable for clamping and positioning samples of different sizes, thereby expanding the applicability of the scribing device.

[0009] In some embodiments, the first positioning structure includes a first positioning member, a pushing member, and a pneumatic power member. The first positioning member is slidably connected to the support platform along the first direction. The pushing member is located on the side of the first positioning member away from the second positioning structure and is in contact with the first positioning member. The pneumatic power member is drively connected to the pushing member and is used to drive the pushing member to move and continuously provide thrust to the pushing member, so that the pushing member continuously provides a thrust towards the second positioning structure to the first positioning member.

[0010] By configuring a pneumatic power component and a pusher component for transmission, and enabling the pneumatic power component to drive the pusher component and continuously provide thrust to it, the pusher component continuously provides thrust towards the second positioning structure to the first positioning component. This allows the pusher component to push the first positioning component on the support platform, moving it towards the second positioning structure in a first direction. Since the sample is located between the first and second positioning structures, as the first positioning component approaches the second positioning structure under the pusher component's influence, the distance between them gradually decreases. Consequently, the first positioning component can abut against the side of the sample closest to the first positioning structure, and with the cooperation of the second positioning structure, the sample is firmly clamped. Simultaneously, because the pusher component, under the action of the pneumatic power component, can continuously provide thrust towards the second positioning structure to the first positioning component, this ensures that even when the sample vibrates during the cutting process using the scribing assembly, the first and second positioning structures remain in contact with the sample, clamping and positioning it to prevent the sample from detaching from the positioning assembly under the scribing force, thus preventing a decrease in the accuracy of the scribing line.

[0011] In some embodiments, the first positioning structure further includes a second positioning member, which is disposed on the side of the pusher away from the first positioning member and in contact with the pusher. The pusher is used to continuously provide a thrust to the second positioning member opposite to the first positioning member while pushing the first positioning member.

[0012] By setting the first positioning structure to include a second positioning element and placing the second positioning element on the side of the pusher away from the first positioning element, the pusher continuously provides a thrust to the second positioning element away from the first positioning element while pushing the first positioning element. In this way, the second positioning element can limit the pusher, so that the force between the pusher and the first positioning element is more stable.

[0013] In some embodiments, the pusher is movable relative to the first positioning member along a second direction, the second direction being aligned with the arrangement direction of the scribing assembly and the support stage. The surface of the first positioning member away from the second positioning structure includes a first guide ramp, and the surface of the second positioning member closer to the second positioning structure includes a second guide ramp. The upper end of the first guide ramp is closer to the second positioning structure than its lower end, and the upper end of the second guide ramp is farther from the second positioning structure than its lower end. Both the first and second guide ramps are in contact with the pusher.

[0014] By providing a first guide slope for the first positioning member and a second guide slope for the second positioning member, when the pushing member moves downward in the second direction, since both the first and second guide slopes are in contact with the pushing member, the first positioning member can move towards the second positioning structure under the action of the pushing member, and the second positioning member can move away from the second positioning structure under the action of the pushing member. The movement of the first positioning member towards the second positioning structure effectively clamps and positions the sample. The first and second guide slopes guide the movement of the pushing member, making its movement smoother, and consequently, the movement of the first and second positioning members. Furthermore, by providing the first and second guide slopes, the pushing member only needs to move in one direction to move both the first and second positioning members, thus simplifying the structure of the first positioning structure and facilitating its installation.

[0015] In some embodiments, the surface of the pusher near the second positioning structure includes a third guide slope, and the surface of the pusher away from the second positioning structure includes a fourth guide slope. The upper end of the third guide slope is closer to the second positioning structure than its lower end, and the upper end of the fourth guide slope is farther away from the second positioning structure than its lower end. The first positioning member is in contact with the third guide slope, and the second positioning member is in contact with the fourth guide slope.

[0016] By providing a third and a fourth guide slope for the pusher, and having the third and fourth guide slopes engage with the first and second guide slopes respectively, the contact area between the pusher and the first and second positioning components during relative movement is increased. This reduces wear on the pusher, extends its service life, and improves the reliability of the scribing device.

[0017] In some embodiments, the pneumatic power component includes an air pump, a cylinder, and a piston rod. One end of the piston rod is connected to the pusher and drives the pusher to move. The other end of the piston rod is located inside the cylinder and is sealed to the cylinder. The air pump is connected to the cylinder and continuously supplies gas into the cylinder so that the gas continuously provides force to the piston rod.

[0018] By configuring a pneumatic power component including an air pump, cylinder, and piston rod, and connecting one end of the piston rod to a pushing component, when gas is continuously supplied to the cylinder by the air pump, the other end of the piston rod, located inside the cylinder and sealed to it, can continuously exert force on the piston rod. In other words, the pneumatic power component can continuously provide force to the pushing component. This pneumatic power component, consisting of an air pump, cylinder, and piston rod, is a relatively mature design, effectively reducing the manufacturing cost of the scribing device and improving its reliability.

[0019] In some embodiments, the first positioning structure further includes a first elastic member and a second elastic member. The first elastic member is disposed between the first positioning member and the support platform, and the second elastic member is disposed between the second positioning member and the support platform.

[0020] The first positioning structure includes a first elastic element and a second elastic element, positioned between the first positioning element and the support platform, and the second positioning element and the support platform, respectively. When the scribing assembly cuts the sample, the pneumatic power unit, being activated, provides a continuous driving force to the pushing element, causing it to move the first and second positioning elements. Simultaneously, both the first and second elastic elements are stretched or compressed. After the scribing assembly completes the cutting and the pneumatic power unit is deactivated, the driving force provided by the pneumatic power unit to the pushing element decreases to zero. At this point, the first and second positioning elements can reset under the action of the first and second elastic elements, respectively. This reduces the clamping force of the first positioning element on the sample, and consequently, the clamping force of the positioning assembly on the sample, facilitating further movement of the second positioning structure to remove the sample from the support platform. Furthermore, when processing the sample again using the scribing device, the pneumatic power unit can be activated to drive the pushing element, pushing the first positioning element from its initial position towards the second positioning structure to clamp and position the sample.

[0021] In some embodiments, the second positioning structure includes a screw and a third positioning member. The screw is threadedly connected to the support platform. The third positioning member is connected to the end of the screw near the first positioning structure and is slidably connected to the support platform along the first direction.

[0022] The second positioning structure includes a screw and a third positioning element, with the screw threadedly connected to the support platform. This allows the third positioning element, connected to the end of the screw near the first positioning structure, to move towards the first positioning structure along a first direction, thus engaging with it to clamp and position the sample. Conversely, unscrewing the screw allows the third positioning element to move away from the first positioning structure along the first direction, releasing the sample clamping. By appropriately designing the screw's thread helix angle, the screw can be self-locking, preventing loosening under the reaction force of the third positioning element. This design of the screw and third positioning element to form the second positioning structure is simple and reliable, reducing the manufacturing cost of the scribing device and improving its reliability.

[0023] In some embodiments, the scribing assembly includes a power structure and a scribing blade. The power structure is connected to the drive assembly and to the scribing blade, and is used to drive the scribing blade to rotate.

[0024] By equipping the scribing assembly with a power structure and a scribing blade, and connecting the power structure to the scribing blade, the power structure drives the scribing blade to rotate, cutting the anti-corrosion coating of the sample. Connecting the power structure to a drive assembly allows the drive assembly to move the scribing assembly across the sample surface, cutting the scribing lines required for the anti-corrosion coating peel test. If a scribing blade is used to scribble along a straight line across the sample surface to cut through the anti-corrosion coating, the blade is prone to breakage during the scribing process, potentially causing a safety accident. This method of cutting the anti-corrosion coating by rotating the scribing blade using a power structure is safer and more reliable.

[0025] In some embodiments, the scribing device further includes a first driving structure connected to the support platform for driving the support platform to move along a third direction, the third direction being perpendicular to the arrangement direction of the scribing component and the support platform. The driving component includes a second driving structure and a third driving structure. The second driving structure is connected to the third driving structure for driving the third driving structure to move along a first direction, the first direction being perpendicular to the third direction and also perpendicular to the arrangement direction of the scribing component and the support platform. The third driving structure is connected to the scribing component for driving the scribing component to move along the arrangement direction of the scribing component and the support platform.

[0026] By providing a third driving structure to the driving assembly, the third driving structure can drive the scribing assembly connected to it to move along the alignment direction of the scribing assembly and the support stage, thereby allowing the scribing assembly to contact the sample to cut scribing lines on the sample, or to move away from the sample for easy sample removal. By providing a first driving structure and connecting it to the support stage, the first driving structure can drive the support stage to move in a third direction. By providing a second driving structure and connecting it to the third driving structure, the second driving structure can drive the scribing assembly to move in a first direction. Thus, the first driving structure can drive the support stage to move in a third direction, causing the scribing assembly to cut scribing lines extending in the third direction on the sample. The second driving structure can drive the scribing assembly to move in the first direction, causing the scribing assembly to cut scribing lines extending in the first direction on the sample. Through the cooperation of the first and second driving structures, the support stage and the scribing assembly can move simultaneously, and by controlling the moving speed of the support stage and the scribing assembly, the scribing assembly can cut scribing lines extending in a fourth direction on the sample. The fourth direction is parallel to the plane of the support platform, and the angle between the fourth direction and the first direction, as well as the angle between the fourth direction and the third direction, are both greater than 0° and less than 90°, for example, 30°, 45°, 60°, etc. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the scribing apparatus provided in some embodiments of this application; Figure 2 for Figure 1 A schematic diagram of the support platform and positioning components of the scribing device shown; Figure 3 Provided for other embodiments Figure 2 A schematic diagram of the positioning component; Figure 4 Provided for other embodiments Figure 2 A schematic diagram of the first positioning structure in the middle; Figure 5 Provided for other embodiments Figure 2 A schematic diagram of the first positioning structure in the middle; Figure 6 Provided for other embodiments Figure 2 A schematic diagram of the second positioning structure; Figure 7for Figure 2 A schematic diagram of the third positioning component shown; Figure 8 for Figure 1 A schematic diagram of the scribing components in the scribing device shown; Figure 9 for Figure 1 A schematic diagram of the manual adjuster in the scribing device shown.

[0029] Figure label: 1. Support platform; 11. Support plate; 2. Positioning assembly; 21. First positioning structure; 211. First positioning component; 212. Pushing component; 213. First positioning plate; 214. Second positioning component; 22. Second positioning structure; 221. Screw; 222. Third positioning component; 222a. Guide groove; 223. Second positioning plate; 224. Handwheel; 23. Limiting component; 231. First plate portion; 232. Second plate portion; 24. Positioning bolt; 3. Driver components; 4. Scribing assembly; 41. Power structure; 411. Scribing cutter connector; 412. Electric motor; 413. Support frame; 42. Scribing cutter; 43. Protective shell; 6. Control panel; 7. Manual adjuster; 71. Coordinate knob; 72. Displacement knob; 73. Progress knob; 5. Outer protective box; 51. First window. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] In the description of this application, it should be understood that the terms "upper," "lower," "left," "right," "front," "rear," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or relative positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Unless otherwise specified, the above-mentioned orientational descriptions can be flexibly set in practical applications, provided that the relative positional relationships shown in the accompanying drawings are satisfied.

[0032] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0033] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "communication" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a direct connection or an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0034] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, article, or apparatus that includes that element.

[0035] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0036] To improve the corrosion resistance of metal parts, an anti-corrosion coating is typically applied to the surface of the parts to isolate them from air or corrosive liquids, thus preventing corrosion. The tighter the bond between the anti-corrosion coating and the metal substrate, the better the coating's ability to prevent corrosion. To test the tightness of the bond between the anti-corrosion coating and the metal substrate, a peel test can be performed using a plate-like substrate coated with the anti-corrosion coating.

[0037] For example, in the field of oil and gas pipelines, a sample with the same material as the actual pipeline can be used to conduct a peel test on the anti-corrosion coating. That is, the material of the sample substrate is the same as that of the steel substrate of the pipeline, the material and thickness of the anti-corrosion coating of the sample are the same as those of the anti-corrosion coating of the pipeline, and the bonding method between the sample substrate and the anti-corrosion coating is the same as that between the steel substrate of the pipeline and the anti-corrosion coating of the pipeline. When conducting peeling tests on anti-corrosion coatings for oil and gas pipelines, a sample is first cut; for example, the sample can be a rectangular or square plate. Then, a test hole is made in the test area of ​​the sample using a standard drill bit. An electrochemical environment is constructed according to the test requirements, and the sample is placed in this environment to simulate the failure process of the anti-corrosion coating under real corrosive conditions. After a certain period, the sample is removed from the electrochemical environment, and its surface is cleaned. Next, eight radial scribe lines are drawn on the sample surface, centered on the test hole. The angle between adjacent scribe lines should ideally be 45°. The scribe lines should penetrate the anti-corrosion coating and be at least 20 mm long. Finally, a pry bar is inserted between the anti-corrosion coating and the steel substrate interface below the scribe lines at the test hole, and the anti-corrosion coating is slowly peeled outwards with a horizontal force until the anti-corrosion coating exhibits significant resistance to peeling. The depth, regularity, and angle between adjacent scribe lines—that is, the accuracy of the scribe lines—have a significant impact on the above coating peeling operation and, consequently, on the accuracy of the anti-corrosion coating peeling test. Therefore, we should cut highly accurate scribing lines on the sample surface as much as possible to facilitate the coating peeling operation and improve the accuracy of the coating peeling test.

[0038] This application provides a scribing device for anti-corrosion coating peeling tests in several embodiments. Exemplarily, this scribing device can be used for anti-corrosion coating peeling tests in fields such as ship hulls, oil and gas pipelines, chemical equipment, and automobile body coatings. Specifically, the scribing device is used to cut scribing lines on a sample to prepare for the peeling of the anti-corrosion coating.

[0039] See Figure 1 The scribing apparatus provided in this application includes a support platform 1, a positioning component 2, a driving component 3, and a scribing component 4. The support platform 1 is used to support the sample. The positioning component 2 is connected to the support platform 1 and is used to clamp and position the sample to ensure the stability of the sample on the support platform 1. The scribing component 4 is disposed above the support platform 1 and is used to cut the anti-corrosion coating of the sample. The driving component 3 is connected to the scribing component 4 and is used to drive the scribing component 4 to move in order to cut the anti-corrosion coating of the sample.

[0040] When using the above-mentioned scribing device to cut the anti-corrosion coating of the sample, first place the sample on the support platform 1 with the side of the sample with the anti-corrosion coating facing the scribing component 4; then clamp and position the sample by the positioning component 2 connected to the support platform 1; then start the scribing component 4 set above the support platform 1, and at the same time start the drive component 3 connected to the scribing component 4, and drive the scribing component 4 to move on the sample surface by the drive component 3, and cut out the scribing lines required for the anti-corrosion coating peeling test in sequence.

[0041] The scribing device provided in this application provides stable support for the sample by setting a support platform 1, laying the foundation for further cutting scribing lines on the sample surface. By setting a positioning component 2 and connecting it to the support platform 1, the sample can be easily positioned on the support platform 1. Furthermore, by clamping the sample with the positioning component 2, the sample can be stably placed on the support platform 1, preventing displacement of the sample relative to the support platform 1 when the scribing component 4 is used to process the sample surface. This improves the straightness of the scribing lines and avoids excessively large or small angles between adjacent scribing lines. The scribing component 4 enables cutting of the sample surface. By setting a driving component 3 and connecting the scribing component 4 to the driving component 3, the scribing component 4 can be driven to move on the sample surface. This allows the scribing component 4 to accurately cut the scribing lines required for the anti-corrosion coating peel test on the sample surface. Moreover, the force applied by the driving component 3 to the scribing component 4 is relatively stable, thus ensuring consistent cutting depth for different scribing lines. Compared to manual operation, the scribing device of this application can effectively improve the accuracy of the scribing line, thereby improving the cutting quality of the sample and ensuring the accuracy of the subsequent anti-corrosion coating peeling test results.

[0042] In some embodiments, see Figure 1 , Figure 2 The positioning component 2 includes a first positioning structure 21 and a second positioning structure 22 spaced apart along a first direction. The first direction is perpendicular to the arrangement direction of the scribing component 4 and the support stage 1. The sample is adapted to be positioned between the first positioning structure 21 and the second positioning structure 22. Both the first positioning structure 21 and the second positioning structure 22 are movable relative to the support stage 1 along the first direction to clamp and position the sample.

[0043] By configuring the positioning component 2, which includes a first positioning structure 21 and a second positioning structure 22 spaced apart along a first direction, and both the first positioning structure 21 and the second positioning structure 22 being movable relative to the support platform 1 along the first direction, with the sample positioned between the first positioning structure 21 and the second positioning structure 22, the sample can be limited from opposite sides of the support platform 1 after it is placed on the support platform 1. This allows the positioning component 2 to simultaneously position and clamp the sample, ensuring the sample is in an appropriate position on the support platform 1 and preventing displacement of the sample relative to the support platform 1 when the scribing component 4 cuts the sample surface. Furthermore, by enabling both the first positioning structure 21 and the second positioning structure 22 to move relative to the support platform 1 along the first direction, the positioning component 2 is suitable for clamping and positioning samples of different sizes, thereby expanding the applicability of the scribing device.

[0044] In other embodiments, see Figure 3 The positioning component 2 may also include a limiting member 23 and a positioning bolt 24 connected to the limiting member 23. For example, the limiting member 23 may be... Figure 3 The L-shaped plate shown, namely the limiting member 23, includes a first plate portion 231 and a second plate portion 232, which form an L-shaped structure when connected. The limiting member 23 is connected to the support platform 1. After the sample is placed on the support platform 1, the first plate portion 231 of the limiting member 23 abuts against either side of the sample, and the second plate portion 232 of the limiting member 23 is positioned on the side of the sample facing the scribing assembly 4. The positioning bolt 24 is connected to the second plate portion 232. Furthermore, by screwing in the positioning bolt 24, the end face of the positioning bolt 24 presses against the sample surface, thereby firmly clamping the sample on the support platform 1. In this way, the positioning assembly 2 can also clamp and position the sample.

[0045] This application is illustrated by way of example with the positioning component 2 including a first positioning structure 21 and a second positioning structure 22.

[0046] In some embodiments, see Figure 2 The first positioning structure 21 includes a first positioning member 211, a pushing member 212, and a pneumatic power component. The first positioning member 211 is slidably connected to the support platform 1 along a first direction. The pushing member 212 is disposed on the side of the first positioning member 211 away from the second positioning structure 22 and is in contact with the first positioning member 211. The pneumatic power component is drively connected to the pushing member 212 and is used to drive the pushing member 212 to move and continuously provide thrust to the pushing member 212, so that the pushing member 212 continuously provides thrust towards the second positioning structure 22 to the first positioning member 211.

[0047] By setting a pneumatic power component and a pusher 212 for transmission connection, and enabling the pneumatic power component to drive the pusher 212 to move and continuously provide thrust to the pusher 212, the pusher 212 continuously provides thrust to the first positioning component 211 toward the second positioning structure 22. In this way, the pusher 212 can push the first positioning component 211 on the support platform 1 to move toward the second positioning structure 22 in the first direction. Since the sample is located between the first positioning structure 21 and the second positioning structure 22, as the first positioning component 211 moves closer to the second positioning structure 22 under the push of the pusher 212, the distance between the first positioning component 211 and the second positioning structure 22 will gradually decrease. As a result, the first positioning component 211 can abut against the side of the sample that is closer to the first positioning structure 21, and with the cooperation of the second positioning structure 22, the sample is firmly clamped. Meanwhile, since the pusher 212 can continuously provide the first positioning member 211 with a thrust toward the second positioning structure 22 under the action of the pneumatic power component, when the sample vibrates during the process of cutting the sample surface by the scribing component 4, it can also ensure that the first positioning member 211 and the second positioning structure 22 are always in contact with the sample and clamp and position the sample to prevent the sample from coming loose from the positioning component 2 under the action of scribing force, thereby reducing the accuracy of the scribing line.

[0048] In some examples, after the sample is processed by the scribing device, the pneumatic power component can be turned off to make the driving force of the pneumatic power component on the pusher 212 zero, thereby reducing the clamping force of the first positioning component 211 on the sample, that is, reducing the clamping force of the positioning component 2 on the sample, so as to facilitate the further movement of the second positioning structure 22 to remove the sample from the support platform 1.

[0049] In other embodiments, see Figure 4 The first positioning structure 21 includes a first positioning plate 213, a sliding guide rod, and a spring. The first positioning plate 213 can slide relative to the support platform 1 in a first direction. One end of the sliding guide rod is connected to the side of the first positioning plate 213 away from the second positioning structure 22, and the other end passes through a through hole on the support platform 1, located on the side of the support platform 1 away from the second positioning structure 22. The spring passes through the sliding guide rod and is located between the first positioning plate 213 and the support platform 1. The diameter of the section of the sliding guide rod on the side of the support platform 1 away from the second positioning structure 22 is larger than the diameter of the through hole. In this way, when the sample is placed on the support platform 1, the side of the sample near the first positioning structure 21 abuts against the side of the first positioning plate 213 near the second positioning structure 22, thereby pushing the first positioning plate 213 to move and compressing the spring. At this time, the first positioning plate 213 can cooperate with the second positioning structure 22 under the elastic force of the spring to clamp and position the sample.

[0050] In some embodiments, see Figure 2The first positioning structure 21 also includes a second positioning member 214. The second positioning member 214 is located on the side of the pusher 212 away from the first positioning member 211 and is in contact with the pusher 212. The pusher 212 is used to continuously provide a thrust to the second positioning member 214 away from the first positioning member 211 while pushing the first positioning member 211.

[0051] By setting the first positioning structure 21 to include a second positioning member 214 and placing the second positioning member 214 on the side of the push member 212 away from the first positioning member 211, the push member 212 continuously provides a thrust to the second positioning member 214 away from the first positioning member 211 while pushing the first positioning member 211. In this way, the second positioning member 214 can limit the push member 212, so that the force between the push member 212 and the first positioning member 211 is more stable.

[0052] In some embodiments, the pusher 212 is movable relative to the first positioning member 211 along a second direction. This second direction coincides with the arrangement direction of the scribing assembly 4 and the support stage 1. See also... Figure 2 The surface of the first positioning member 211 away from the second positioning structure 22 includes a first guide slope, and the surface of the second positioning member 214 near the second positioning structure 22 includes a second guide slope. The upper end of the first guide slope is closer to the second positioning structure 22 than its lower end, and the upper end of the second guide slope is farther away from the second positioning structure 22 than its lower end. Both the first and second guide slopes are in contact with the pusher 212.

[0053] By providing a first guide slope for the first positioning member 211 and a second guide slope for the second positioning member 214, when the pushing member 212 moves downward in the second direction, since both the first and second guide slopes are in contact with the pushing member 212, the first positioning member 211 can move towards the second positioning structure 22 under the action of the pushing member 212, and the second positioning member 214 can move away from the second positioning structure 22 under the action of the pushing member 212. The movement of the first positioning member 211 towards the second positioning structure 22 is equivalent to clamping and positioning the sample. The first and second guide slopes guide the movement of the pushing member 212, making its movement smoother, and consequently, making the movement of the first and second positioning members 211 and 214 smoother. Furthermore, by providing the first and second guide slopes, the pushing member 212 only needs to move in one direction to move the first and second positioning members 211 and 214, thus simplifying the structure of the first positioning structure 21 and facilitating its installation.

[0054] Furthermore, the pusher 212 can move relative to the first positioning member 211 in the second direction, that is, the pneumatic power member can drive the pusher 212 to move in the second direction. This indicates that the pneumatic power member can be arranged relative to the pusher 212 in the second direction, that is, the pneumatic power member is arranged on one side perpendicular to the plane of the support platform 1. For example, the pneumatic power member can be arranged on the side of the plane of the support platform 1 facing away from the scribing assembly 4. In this way, more space can be left on the support platform 1 to place the sample, and interference between the scribing assembly 4 and the pneumatic power member can be avoided when the scribing assembly 4 moves on the sample surface.

[0055] In other embodiments, the pusher 212 is movable relative to the first positioning member 211 along a third direction. This third direction is perpendicular to the first direction and parallel to the plane of the support platform 1. See also... Figure 5 The first positioning member 211 has a fifth guide slope on the side surface away from the second positioning structure 22, and the second positioning member 214 has a sixth guide slope on the side surface close to the second positioning structure 22. The fifth guide slope is closer to the second positioning structure 22 at one end along the third direction than at the other end, and the sixth guide slope is farther away from the second positioning structure 22 at one end along the third direction than at the other end. It can be understood that when the pusher 212 moves along the third direction, it can also push the first positioning member 211 to clamp and position the sample.

[0056] In some embodiments, see Figure 2 The surface of the pusher 212 closest to the second positioning structure 22 includes a third guide slope, and the surface of the pusher 212 furthest from the second positioning structure 22 includes a fourth guide slope. The upper end of the third guide slope is closer to the second positioning structure 22 than the lower end, and the upper end of the fourth guide slope is farther from the second positioning structure 22 than the lower end. The first positioning member 211 is in contact with the third guide slope, and the second positioning member 214 is in contact with the fourth guide slope.

[0057] By providing a third guide slope and a fourth guide slope to the pusher 212, and making the third guide slope and the fourth guide slope engage and contact with the first guide slope and the second guide slope respectively, the contact area between the pusher 212 and the first positioning member 211 and the second positioning member 214 during relative movement is increased. This reduces the wear of the pusher 212, extends its service life, and improves the reliability of the scribing device.

[0058] In some other embodiments, the pusher 212 may not have the third guide ramp and the fourth guide ramp. It is understood that the pusher 212 can still contact the first positioning member 211 and the second positioning member 214 and continuously provide them with thrust so that the first positioning member 211 moves toward the second positioning structure 22 to clamp and position the sample.

[0059] In some embodiments, see Figure 2 The pushing member 212 has guide grooves on both its surface facing the first positioning member 211 and its surface facing the second positioning member 214. Both the first positioning member 211 and the second positioning member 214 have guide protrusions that cooperate with the guide grooves. Specifically, the guide protrusion of the first positioning member 211 slides within the guide groove on the surface of the pushing member 212 facing the first positioning member 211, and the guide protrusion of the second positioning member 214 slides within the guide groove on the surface of the pushing member 212 facing the second positioning member 214. In this way, when the pushing member 212 slides relative to the first positioning member 211 and the second positioning member 214 under the drive of the pneumatic power component, the pushing member 212 will not slip off the first guide ramp and the second guide ramp, thereby reducing the failure rate of the first positioning structure 21 and improving the overall reliability of the scribing device.

[0060] In some examples, the first positioning member 211 and the second positioning member 214 can be block structures, plate structures, etc., and the pushing member 212 can be a block structure, plate structure, etc. This application is illustrated by way of example, where the first positioning member 211, the second positioning member 214, and the pushing member 212 are all block structures.

[0061] In some embodiments, the first positioning structure 21 further includes a first elastic member and a second elastic member, the first elastic member being disposed between the first positioning member 211 and the support platform 1, and the second elastic member being disposed between the second positioning member 214 and the support platform 1.

[0062] The first positioning structure 21 includes a first elastic element and a second elastic element, with the first and second elastic elements positioned between the first positioning element 211 and the support platform 1, and the second positioning element 214 and the support platform 1, respectively. When the scribing assembly 4 cuts the sample, the pneumatic power component is in the active state, providing continuous driving force to the pushing element 212. This causes the pushing element 212 to move the first positioning element 211 and the second positioning element 214, while the first and second elastic elements are stretched or compressed. After the scribing assembly 4 completes the cutting and the pneumatic power component is turned off, the driving force provided by the pneumatic power component to the pushing element 212 decreases to zero. At this point, the first positioning element 211 and the second positioning element 214 can reset under the action of the first and second elastic elements, respectively. This reduces the clamping force of the first positioning element 211 on the sample, which in turn reduces the clamping force of the positioning assembly 2 on the sample, facilitating further movement of the second positioning structure 22 to remove the sample from the support platform 1. At the same time, it also makes it convenient to use the scribing device to process the sample again. The pneumatic power component can be activated to drive the pusher 212 to push the first positioning component 211 from the initial position toward the direction of the second positioning structure 22, so as to clamp and position the sample.

[0063] In some examples, the first and second elastic elements can be springs, rubber parts, silicone parts, etc.

[0064] In some examples, the support platform 1 is provided with a slide groove, and the first positioning member 211 and the second positioning member 214 are both disposed in the slide groove and are able to slide within the slide groove. The first elastic member and the second elastic member are disposed in the slide groove.

[0065] In some other embodiments, the pusher 212 can be a cam, which is rotatably connected to the support platform 1 about a third direction. The pneumatic power component drives the cam to rotate, thereby causing the cam to move the first positioning member 211, or to move the first positioning member 211 and the second positioning member 214.

[0066] In some embodiments, the pneumatic power component includes an air pump, a cylinder, and a piston rod. One end of the piston rod is connected to a pusher 212 to drive the pusher 212 to move. The other end of the piston rod is located inside the cylinder and is sealed to the cylinder. The air pump is connected to the cylinder and is used to continuously supply gas into the cylinder so that the gas continuously provides force to the piston rod.

[0067] By configuring a pneumatic power component including an air pump, a cylinder, and a piston rod, and connecting one end of the piston rod to the pusher 212, when gas is continuously supplied to the cylinder by the air pump, the other end of the piston rod is located inside the cylinder and is sealed to the cylinder. This allows the gas to continuously exert force on the piston rod, meaning the pneumatic power component can continuously provide force to the pusher 212. The pneumatic power component, consisting of an air pump, cylinder, and piston rod, is a relatively mature design, effectively reducing the manufacturing cost of the scribing device and improving its reliability.

[0068] In some embodiments, see Figure 2 The second positioning structure 22 includes a screw 221 and a third positioning member 222. The screw 221 is threadedly connected to the support platform 1, and the third positioning member 222 is connected to the end of the screw 221 near the first positioning structure 21 and is slidably connected to the support platform 1 along the first direction.

[0069] The second positioning structure 22 includes a screw 221 and a third positioning element 222, with the screw 221 threadedly connected to the support platform 1. This allows the third positioning element 222, connected to the end of the screw 221 near the first positioning structure 21, to move towards the first positioning structure 21 in a first direction by screwing in the screw 221, thus engaging with the first positioning structure 21 to clamp and position the sample. Conversely, screwing out the screw 221 allows the third positioning element 222, connected to the end of the screw 221 near the first positioning structure 21, to move away from the first positioning structure 21 in the first direction, thereby releasing the clamping and positioning of the sample. By appropriately designing the thread helix angle of the screw 221, the screw 221 can be self-locking, meaning that the screw 221 will not loosen under the reaction force of the third positioning element 222. The design of the screw 221 and the third positioning element 222 to form the second positioning structure 22 is simple and reliable, thereby reducing the manufacturing cost of the scribing device and improving its reliability. In some examples, the third positioning element 222 can be a strip, a block structure, etc.

[0070] In other embodiments, see Figure 6 The second positioning structure 22 includes a second positioning plate 223, a sliding guide rod, and a spring. The second positioning plate 223 can slide relative to the support platform 1 in a first direction. One end of the sliding guide rod is connected to the side of the second positioning plate 223 away from the first positioning structure 21, and the other end passes through a through hole on the support platform 1, located on the side of the support platform 1 away from the first positioning structure 21. The spring passes through the sliding guide rod and is located between the second positioning plate 223 and the support platform 1. The diameter of the section of the sliding guide rod on the side of the support platform 1 away from the first positioning structure 21 is larger than the diameter of the through hole. In this way, when the sample is placed on the support platform 1, the side of the sample near the second positioning structure 22 abuts against the side of the second positioning plate 223 near the first positioning structure 21, thereby pushing the second positioning plate 223 to move and compressing the spring. At this time, the second positioning plate 223 can cooperate with the first positioning structure under the elastic force of the spring to clamp and position the sample.

[0071] In some embodiments, see Figure 2 The second positioning structure 22 also includes a handwheel 224, which is connected to the end of the screw 221 away from the first positioning structure 21. By providing the handwheel 224 at the end of the screw 221 away from the first positioning structure 21, it is convenient to screw the screw 221 in or out by rotating the handwheel 224, thereby driving the third positioning member 222 to clamp or release the sample. The handwheel 224 also reduces the difficulty of manually rotating the screw 221.

[0072] In some embodiments, see Figure 2 , Figure 7The third positioning member 222 has a guide groove 222a on the side near the support platform 1. The support platform 1 has a guide rail extending along the first direction. The guide groove 222a is adapted to the guide rail, and the third positioning member 222 can slide along the guide rail. In this way, when the third positioning member 222 moves on the support platform 1 to clamp and position the sample, it will not shift upward relative to the support platform 1, making the clamping and positioning of the sample by the positioning assembly 2 more stable and reliable.

[0073] In some embodiments, see Figure 2 The support platform 1 is provided with a support plate 11, and the area of ​​the support plate 11 is smaller than the area of ​​the plane of the support platform 1. The support plate 11 is suitable for supporting the sample. In this way, since the area of ​​the support plate 11 is smaller, the flatness of the support plate 11 is easier to control than the flatness of the plane of the support platform 1. The support plate 11 can provide a flatter support surface for the sample, which can ensure that the depth of the cut lines is consistent.

[0074] In some embodiments, see Figure 8 The scribing assembly 4 includes a power structure 41 and a scribing blade. The power structure 41 is connected to the drive assembly 3 and is also connected to the scribing blade to drive its rotation. By providing the power structure 41 and the scribing blade to the scribing assembly 4, and connecting the power structure 41 to the scribing blade, the scribing blade can be driven to rotate to cut the anti-corrosion coating of the sample. Connecting the power structure 41 to the drive assembly 3 allows the drive assembly 3 to move the scribing assembly 4 across the sample surface to cut the scribing lines required for the anti-corrosion coating peel test. If a scribing blade is used to scribble along a straight line on the sample surface to cut through the anti-corrosion coating, the scribing blade is prone to breakage during the scribing process, potentially causing a safety accident. This method of cutting the anti-corrosion coating of the sample by driving the scribing blade to rotate via the power structure 41 is safer and more reliable. In some examples, the scribing blade can be a small, pointed end mill.

[0075] In other embodiments, the scribing assembly 4 includes a support frame and a scribing blade, the support frame being connected to the drive assembly 3 and the scribing blade being connected. In this way, by driving the scribing assembly 4 to move on the sample surface via the drive assembly 3, the scribing lines required for the anti-corrosion coating peeling test can also be cut.

[0076] In some examples, see Figure 8The power structure 41 includes a scribing blade connector 411, a motor 412, and a support frame 413. The scribing blade connector 411 is connected to the scribing blade and to the output shaft of the motor 412, so that the motor 412 can drive the scribing blade to rotate. The motor 412 is connected to the support frame 413, and the support frame 413 is connected to the drive assembly 3. In this way, the drive assembly 3 can drive the motor 412 and the scribing blade to move on the sample surface, so that the scribing blade cuts out the scribing lines required for the anti-corrosion coating peel test. For example, the scribing blade connector 411 can be a clamp-type connector.

[0077] In some examples, see Figure 8 The scribing assembly 4 also includes a protective shell 43, which is fitted onto the surface of the power structure 41. In this way, the protective shell 43 can prevent the anti-corrosion coating debris cut off by the scribing blade during the scribing process from splashing into the power structure 41, avoiding malfunction of the power structure 41 as a result, and improving the reliability of the scribing device.

[0078] In some embodiments, the scribing device further includes a first driving structure connected to the support stage 1, for driving the support stage 1 to move along a third direction, the third direction being perpendicular to the arrangement direction of the scribing component 4 and the support stage 1. The driving component 3 includes a second driving structure and a third driving structure. The second driving structure is connected to the third driving structure and is used to drive the third driving structure to move along a first direction. The third driving structure is connected to the scribing component 4 and is used to drive the scribing component 4 to move along the arrangement direction of the scribing component 4 and the support stage 1.

[0079] By providing a third driving structure for the driving component 3, the third driving structure can drive the scribing component 4 connected to it to move along the arrangement direction of the scribing component 4 and the support stage 1, thereby allowing the scribing component 4 to contact the sample to cut scribing lines on the sample, or to leave the sample for easy sample removal. By providing a first driving structure and connecting it to the support stage 1, the first driving structure can drive the support stage 1 to move along a third direction. By providing a second driving structure and connecting it to the third driving structure, the second driving structure can drive the scribing component 4 to move along a first direction. Thus, the first driving structure can drive the support stage 1 to move in a third direction, allowing the scribing component 4 to cut scribing lines extending along the third direction on the sample. The second driving structure can drive the scribing component 4 to move along the first direction, allowing the scribing component 4 to cut scribing lines extending along the first direction on the sample. Through the cooperation of the first and second driving structures, the support stage 1 and the scribing component 4 can be moved simultaneously, and by controlling the moving speed of the support stage 1 and the scribing component 4, the scribing component 4 can cut scribing lines extending along a fourth direction on the sample. The fourth direction is parallel to the plane of the bearing platform 1, and the angle between the fourth direction and the first direction, as well as the angle between the fourth direction and the third direction, are both greater than 0° and less than 90°, for example, 30°, 45°, 60°, etc.

[0080] In summary, the coordinated operation of the first, second, and third driving structures allows the scribing assembly 4 to move along any path relative to the sample within the space above the support platform 1. This enables the scribing assembly 4 to sequentially cut out the multiple scribing lines required for the anti-corrosion coating peeling test. This design, where the first driving structure is connected to the support platform 1, and the third driving structure is connected to the second driving structure and the scribing assembly 4, offers a reasonable spatial layout, mature and reliable technology, and effectively reduces the manufacturing cost of the scribing device.

[0081] In other embodiments, the driving assembly 3 includes a fourth driving structure, a fifth driving structure, and a sixth driving structure. The sixth driving structure is connected to the scribing assembly 4 and also to the fifth driving structure, and can drive the scribing assembly 4 to move along the arrangement direction of the scribing assembly 4 and the support stage 1. The fifth driving structure can drive the sixth driving structure to move along a first direction. The fourth driving structure is connected to the fifth driving structure and can drive the fifth driving structure to move along a third direction. In this way, the driving assembly 3 can also move the scribing assembly 4 relative to the sample along any path in the space above the support stage 1, thereby enabling the scribing assembly 4 to sequentially cut out multiple scribing lines required for the anti-corrosion coating peeling test.

[0082] In some examples, the first, second, and third drive structures all include a motor, a lead screw, a support base, a sliding seat, and a guide rail. The motor is driven by the lead screw, which is rotatably connected to the support base. The guide rail is mounted on the support base, and the sliding seat is threadedly connected to the lead screw and slidably connected to the guide rail. The motor can drive the lead screw to rotate, thereby causing the lead screw to rotate relative to the support base, which in turn causes the sliding seat to slide on the guide rail. The support platform 1 is connected to the sliding seat of the first drive structure, the scribing assembly 4 is connected to the sliding seat of the third drive structure, and the guide rail of the third drive structure is connected to the sliding seat of the second drive structure.

[0083] In some examples, both the first drive structure and the drive assembly 3 include a bellows protective sleeve. The bellows protective sleeve is positioned above the guide rails of the first drive structure, the second drive structure, and the third drive structure to prevent anti-corrosion coating debris from splashing into the guide rails or lead screw, thereby avoiding failure of the first drive structure and the drive assembly 3 and improving the reliability of the scribing device.

[0084] In some embodiments, see Figure 1 The scribing device also includes a controller and a control panel 6, which are electrically connected. The controller is also electrically connected to the first drive structure, the pneumatic power component, the scribing assembly 4, and the drive assembly 3. Control commands can be input to the controller via the control panel 6. The controller can then control the first drive structure to move the support platform 1, control the pneumatic power component to open and close, control the opening and closing of the scribing assembly 4 and the rotation speed of the scribing blade, control the third drive structure to move the scribing assembly 4, and control the second drive structure to move the third drive structure. Thus, after the sample is placed on the support platform 1, it can be initially clamped and positioned by the second positioning structure. Then, by inputting commands from the control panel 6 to the controller, the pneumatic power component is activated, allowing the first positioning component 211 in the first positioning structure 21 to further clamp and position the sample. Finally, the first drive structure, the scribing assembly 4, and the drive assembly 3 can cooperate according to the commands to complete the cutting of the sample. By setting up the controller and control panel 6, the scribing work can be performed automatically according to commands, thereby freeing up manpower and improving work efficiency.

[0085] In some embodiments, see Figure 1 The scribing device also includes a manual adjuster 7, which is electrically connected to the controller. The manual adjuster 7 can then control the first drive structure and the drive assembly 3 via the controller. (See also...) Figure 9The manual adjuster 7 includes a coordinate knob 71, a displacement knob 72, and a progress knob 73. The coordinate knob 71 has first, second, and third positions, corresponding to the first, second, and third drive structures, respectively. The displacement knob 72 controls the driving displacement of the sliding seat of the drive structure corresponding to the corresponding position of the coordinate knob 71. For example, when the displacement knob 72 is rotated clockwise, the sliding seat of the corresponding drive structure can move along the guide rail to the first end of the guide rail; when the displacement knob 72 is rotated counterclockwise, the sliding seat of the corresponding drive structure can move along the guide rail to the second end of the guide rail, with the two ends of the guide rail being the first and second ends, respectively. The progress knob 73 controls the displacement distance of the sliding seat of the drive structure corresponding to the corresponding position of the coordinate knob 71 when the displacement knob 72 rotates one revolution. In this way, after the sample is clamped and positioned on the support platform 1, the scribing blade can be adjusted to a suitable position relative to the sample, such as the middle of the sample, by the manual adjuster 7. Then, the scribing device can be automatically scribing by the command input from the control panel 6 to the controller. This allows the same set of instructions to be reused to process samples with different length and width dimensions, thereby improving the working efficiency of the scribing device.

[0086] In some embodiments, see Figure 1 The scribing device also includes an outer protective box 5, which is fitted over the entire scribing device. The outer protective box 5 has a first window 51, which can be in both closed and open states. The outer protective box 5 can prevent foreign objects from entering the scribing device to avoid interfering with its scribing operation. In addition, the first window 51 can be opened to place samples into or remove finished samples from the scribing device, or the first window 51 can be closed when the scribing component 4 cuts the sample to prevent debris from the anti-corrosion coating from splashing around and making cleaning difficult.

[0087] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0088] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A scribing device for peeling tests of anti-corrosion coatings, characterized in that, include: A support platform, which is used to support the sample; A positioning component, connected to the support platform, is used to clamp and position the sample; The sample includes a drive assembly and a scribing assembly. The scribing assembly is located above the support platform and is used to cut the anti-corrosion coating of the sample. The drive assembly is connected to the scribing assembly and is used to drive the scribing assembly to move in order to cut the anti-corrosion coating of the sample.

2. The scribing device according to claim 1, characterized in that, The positioning component includes a first positioning structure and a second positioning structure spaced apart along a first direction, the first direction being perpendicular to the arrangement direction of the scribing component and the support stage, and the sample being adapted to be located between the first positioning structure and the second positioning structure; Both the first positioning structure and the second positioning structure are capable of moving relative to the support platform along the first direction to clamp and position the sample.

3. The scribing device according to claim 2, characterized in that, The first positioning structure includes: The first positioning element is slidably connected to the support platform along the first direction; A pusher is located on the side of the first positioning member away from the second positioning structure and is in contact with the first positioning member; A pneumatic power component, which is connected to the pusher, is used to drive the pusher to move and continuously provide thrust to the pusher, so that the pusher continuously provides thrust to the first positioning component toward the second positioning structure.

4. The scribing device according to claim 3, characterized in that, The first positioning structure further includes a second positioning member, which is located on the side of the pusher away from the first positioning member and is in contact with the pusher. The pusher is used to continuously provide a thrust to the second positioning member away from the first positioning member while pushing the first positioning member.

5. The scribing device according to claim 4, characterized in that, The pushing member is movable relative to the first positioning member along a second direction, which is consistent with the arrangement direction of the scribing component and the support platform; The surface of the first positioning member away from the second positioning structure includes a first guide slope, and the surface of the second positioning member close to the second positioning structure includes a second guide slope. The upper end of the first guide slope is closer to the second positioning structure than the lower end, and the upper end of the second guide slope is farther away from the second positioning structure than the lower end. Both the first guide slope and the second guide slope are in contact with the pushing member. And / or, the side surface of the pusher near the second positioning structure includes a third guide slope, and the side surface of the pusher away from the second positioning structure includes a fourth guide slope. The upper end of the third guide slope is closer to the second positioning structure than the lower end, and the upper end of the fourth guide slope is farther away from the second positioning structure than the lower end. The first positioning member is in contact with the third guide slope, and the second positioning member is in contact with the fourth guide slope.

6. The scribing apparatus according to any one of claims 3-5, characterized in that, The pneumatic power component includes an air pump, a cylinder, and a piston rod. One end of the piston rod is connected to the pusher and is used to drive the pusher to move. The other end of the piston rod is located inside the cylinder and is sealed to the cylinder. The air pump is connected to the cylinder and is used to continuously supply gas into the cylinder so that the gas continuously provides force to the piston rod.

7. The scribing device according to claim 4 or 5, characterized in that, The first positioning structure further includes a first elastic element and a second elastic element, wherein the first elastic element is disposed between the first positioning element and the support platform, and the second elastic element is disposed between the second positioning element and the support platform.

8. The scribing apparatus according to any one of claims 2-4, characterized in that, The second positioning structure includes a screw and a third positioning element. The screw is threadedly connected to the support platform, and the third positioning element is connected to the end of the screw near the first positioning structure and is slidably connected to the support platform along the first direction.

9. The scribing apparatus according to any one of claims 1-4, characterized in that, The scribing assembly includes a power structure and a scribing blade. The power structure is connected to the drive assembly and is also connected to the scribing blade to drive the scribing blade to rotate.

10. The scribing apparatus according to any one of claims 1-4, characterized in that, The scribing device further includes a first driving structure, which is connected to the support platform and is used to drive the support platform to move along a third direction, which is perpendicular to the arrangement direction of the scribing component and the support platform. The driving component includes a second driving structure and a third driving structure. The second driving structure is connected to the third driving structure and is used to drive the third driving structure to move along a first direction. The first direction is perpendicular to the third driving structure and perpendicular to the arrangement direction of the scribing component and the support stage. The third driving structure is connected to the scribing assembly and is used to drive the scribing assembly to move along the arrangement direction of the scribing assembly and the support platform.

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