A coated panel coating test apparatus and method

Abstract

The embodiment of the present application provides a kind of coating plate coating test device and test method, it is related to coating plate field.The coating plate coating test device includes mounting table and pressure block, mounting table is equipped with multiple positioning screw holes, multiple positioning screw holes are arranged in array arrangement.Due to the array of positioning screw hole being arranged on mounting table, different specifications and sizes of coating plate can be placed on mounting table, then the edge of coating plate is arranged pressure block, the first block of pressure block is pressed on coating plate, the second block is connected with mounting table, Z-axis screw hole is aligned with the positioning screw hole on mounting table, then the knurled bolt is used to pass through Z-axis screw hole and positioning screw hole, so as to fix coating plate on mounting table;The mounting table of the embodiment cooperates with pressure block and can be suitable for fixing a variety of different sizes of coating plate, detection is convenient, it is favorable to reduce detection cost and shorten detection time.The test method is applied to the test device to realize the detection of different sizes of coating plate.

Description

Technical Field

[0001] This invention relates to the field of coated plates, and more specifically, to a coating testing device and method for coated plates. Background Technology

[0002] Coated panels are boards formed by applying a coating to the surface of a substrate. Coated panels have a wide range of applications and come in many types, including epoxy-coated panels, polyurethane-coated panels, anti-corrosion coated panels, and waterproof coated panels. Coating adhesion is a key indicator for evaluating the bond strength between the coating and the substrate, directly affecting the service life and reliability of the coated panel. Testing the adhesion between the coating and the substrate is an important basis for inspecting the quality of coated panels.

[0003] Currently, coating adhesion testing is usually performed using a tensile testing machine with fixtures of corresponding sizes to fix the coated plate. However, since the fixtures are not compatible with a variety of different sizes of coated plates, custom fixtures need to be made when testing coated plates of different sizes, which limits the testing and increases the testing cost. Summary of the Invention

[0004] This invention provides a coating testing device and method for coated plates, which can solve the above-mentioned problems.

[0005] The embodiments of the present invention can be implemented as follows: An embodiment of the present invention provides a coating plate coating testing device, which includes: The mounting platform has multiple positioning screw holes arranged in an array. The mounting platform is used to place the coated plate. The pressure block includes a first block, a second block, and knurled bolts. The first block is connected to the second block. The second block has a Z-axis screw hole. The knurled bolts can pass through the Z-axis screw hole and the positioning screw hole in sequence to position and fix the coating plate on the mounting platform.

[0006] Optionally, the mounting platform includes a base, a middle platform, and a top platform, which are arranged sequentially from bottom to top along the Z-axis. The middle platform is connected to the base and can slide along the X-axis, and the top platform is connected to the middle platform and can slide along the Y-axis. Positioning screw holes are provided on the top platform.

[0007] Optionally, the base includes a fixed connection part and an X-axis guide part, wherein the X-axis guide part is disposed in the fixed connection part and is located on the side closer to the middle platform; The intermediate platform includes an X-axis sliding part and a Y-axis guide part. The Y-axis guide part is disposed on the X-axis sliding part and located on the side near the top platform. The X-axis sliding part is provided with an X-axis sliding groove. The X-axis guide part is adapted to the X-axis sliding groove and is accommodated in the X-axis sliding groove. The top platform includes a Y-axis sliding part and a positioning connection part. The Y-axis sliding part is disposed in the positioning connection part and located on the side close to the middle platform. The Y-axis sliding part is provided with a Y-axis sliding groove. The Y-axis sliding part is adapted to the Y-axis sliding groove and is accommodated in the Y-axis sliding groove. The positioning screw hole is disposed in the positioning connection part.

[0008] Optionally, the base is also connected to an X-axis drive unit, which is used to drive the intermediate platform to move along the X-axis direction; The intermediate platform is also connected to a Y-axis drive unit, which is used to drive the top platform to move along the Y-axis direction.

[0009] Optionally, an X-axis worm gear is rotatably connected to the base, and the X-axis worm gear is connected to the output end of the X-axis drive component; The intermediate platform is equipped with a first worm gear, which meshes with the X-axis worm.

[0010] Optionally, a Y-axis worm gear is rotatably connected to the intermediate platform, and the Y-axis worm gear is connected to the output end of the Y-axis drive component; The top platform is equipped with a second worm gear, which meshes with the Y-axis worm.

[0011] Optionally, the testing device also includes a positioning module, which is communicatively connected to the X-axis drive and the Y-axis drive, and is used to automatically position the coated plate.

[0012] Optionally, the first block and the second block are arranged perpendicularly, and the pressing block is an L-shaped block.

[0013] Optionally, the testing apparatus also includes a tension column connector, one end of which is used to connect to the surface of the coated plate, and the other end is used to connect to a tensile testing machine.

[0014] Optionally, the tension column connector includes a male end connecting shaft and a female end connecting sleeve, the male end connecting shaft and the female end connecting sleeve are connected, and the male end connecting shaft is provided with a pin hole in the radial direction.

[0015] Embodiments of the present invention also provide a testing method for testing the adhesion of a coating on a coated plate using the aforementioned coating plate testing device, comprising: Secure the mounting platform to the connecting platform of the tensile testing machine, ensuring that the top surface of the mounting platform is level; Place the coated plate to be tested on the top surface of the mounting platform and adjust its position so that the center of the coated plate coincides with the center of the mounting platform. A pressure block is set at the edge of the coating plate. The second part of the pressure block is connected to the mounting platform. The first part of the pressure block presses onto the coating plate. Knurled bolts pass through the Z-axis screw holes and positioning screw holes to press and fix the coating plate to the top surface of the mounting platform, so that the coating plate cannot move. A test column is attached to the area to be tested on the coated plate. The other end of the test column is connected to the test head of the tensile testing machine. After the coating on the plate and the test column are firmly bonded, the tensile testing machine is started and the test data is recorded.

[0016] A testing method, using the aforementioned coating plate testing device to perform a single tensile column test on the coating adhesion of a coated plate, includes: Fix the mounting platform to the connecting platform of the tensile testing machine, ensuring that the top surface of the mounting platform is level; Secure the fixed bushing to the top platform of the mounting table using threads. The coated plate to be tested is bonded to the end face of the female connecting sleeve of two tension column connectors. One tension column connector is connected to the force application end of the tension testing machine through the male connecting shaft and the pin, and the other tension column connector is connected to the fixed shaft sleeve through the male connecting shaft and the pin. After the coated plates are firmly bonded, start the tensile testing machine and record the test data.

[0017] Beneficial effects of the embodiments of the present invention: This coating board coating testing device includes a mounting platform and a pressure block. The mounting platform has multiple positioning screw holes arranged in an array. The pressure block includes a first block, a second block, and knurled bolts. The first block and the second block are connected. The second block has a Z-axis screw hole, through which the knurled bolts can pass sequentially. Because of the array of positioning screw holes on the mounting platform, coating boards of different sizes can be placed on it. The pressure block is then positioned along the edge of the coating board, with the first block pressing against the coating board and the second block connecting to the mounting platform. The Z-axis screw hole aligns with the positioning screw hole on the mounting platform. The knurled bolts are then passed through the Z-axis screw hole and the positioning screw hole to fix the coating board to the mounting platform. This embodiment of the mounting platform and pressure block can be used to fix coating boards of various sizes without requiring customized tooling based on the dimensions of the coating board. This facilitates testing, reduces testing costs, and shortens testing time.

[0018] The testing method includes: fixing the mounting platform to the connecting platform of the tensile testing machine, ensuring that the top surface of the mounting platform is level; placing the coated plate to be tested on the top surface of the mounting platform and adjusting the position of the coated plate so that the center of the coated plate coincides with the center of the mounting platform; setting a pressure block at the edge of the coated plate, with the second part of the pressure block connected to the mounting platform and the first part of the pressure block pressing against the coated plate; using knurled bolts passing through the Z-axis screw holes and positioning screw holes to press and fix the coated plate firmly to the top surface of the mounting platform, making the coated plate immovable; attaching a test column to the area to be tested on the coated plate, with the other end of the test column connected to the test head of the tensile testing machine; and starting the tensile testing machine after the coating of the coated plate and the test column are firmly bonded, and recording the test data. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the coating plate coating testing device provided in an embodiment of the present invention; Figure 2 This is an exploded view of the coating plate coating testing device provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the base provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the intermediate platform provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the top platform provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the pressure block provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the tension column connector provided in an embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of the fixed bushing provided in an embodiment of the present invention; Figure 9 This is a schematic diagram of the coating adhesion test device provided in an embodiment of the present invention performing a coating adhesion test on the upper right corner of the coating plate; Figure 10 This is a schematic diagram of the coating adhesion test device provided in an embodiment of the present invention performing a coating adhesion test on the lower left corner of the coating plate; Figure 11 The positioning module provided in the embodiment of the present invention is a schematic diagram of the automatic positioning process of the coated plate; Figure 12 The positioning module provided in the embodiment of the present invention is a schematic diagram after the coating plate has been automatically positioned.

[0021] Icons: 1-Mounting platform; 11-Base; 110-Fixed connection part; 1101-Connecting screw hole; 111-X-axis guide part; 1111-First limiting hole; 1112-First bearing; 112-X-axis drive component; 113-X-axis connecting frame; 114-X-axis worm; 12-Intermediate platform; 120-X-axis sliding part; 1201-X-axis sliding groove; 121-Y-axis guide part; 1211-Second limiting hole; 1212-Second bearing; 122-Y-axis drive component; 123-Y-axis connecting frame; 124-Y-axis worm; 125-First worm wheel; 126-First worm wheel frame; 13- Top platform; 130-Y-axis sliding part; 1301-Y-axis sliding groove; 131-positioning connection part; 1311-positioning screw hole; 132-second worm gear frame; 2-pressure block; 21-first block; 22-second block; 23-Z-axis screw hole; 24-knurled bolt; 3-tension column connector; 31-male end connecting shaft; 311-pin hole; 32-female end connecting sleeve; 33-locking knob; 4-fixed bushing; 41-flange part; 411-circumferential screw hole; 42-sleeve part; 421-wall through hole; 5-coated plate; 6-positioning module; 61-rangefinder; 62-control console; 63-bottom shell. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] In the description of this invention, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed, they are only for the convenience of describing this invention and simplifying the description, 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, and therefore should not be construed as a limitation of this invention.

[0026] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0027] The terms “comprising,” “including,” or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, 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, method, 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, method, article, or apparatus that includes said element.

[0028] Unless otherwise explicitly specified and limited, terms such as "setup" and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0029] It should be noted that, for the sake of simplicity, the aforementioned method embodiments are all described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, because according to this application, some steps can be performed in other orders or simultaneously. The steps in the methods of this application embodiments can be adjusted, combined, or deleted according to actual needs.

[0030] It should be noted that, where there is no conflict, the features in the embodiments of the present invention can be combined with each other.

[0031] As described in the background section, coated panels are widely used in various fields, such as machinery manufacturing, automotive parts, and aerospace components. Inspecting the adhesion of the coating on the coated panel is the basis for evaluating its quality.

[0032] Currently, coating adhesion testing is usually performed using a tensile testing machine with fixtures of corresponding sizes to fix the coated plate. Since the fixtures for fixing the coated plate are usually custom-made products, they cannot be compatible with a variety of coated plates of different sizes, resulting in long testing times and high testing costs.

[0033] In view of this, embodiments of the present invention provide a coating testing device and a testing method for coated plates, which can solve the above-mentioned problems, and will be described in detail below.

[0034] Please refer to Figure 1 and Figure 2 The coating plate coating testing device includes a mounting platform 1 and a pressure block 2. The mounting platform 1 has multiple positioning screw holes 1311 arranged in an array. The pressure block 2 includes a first block 21, a second block 22 and knurled bolts 24. The first block 21 is connected to the second block 22. The second block 22 has a Z-axis screw hole 23. The knurled bolts 24 can pass through the Z-axis screw hole 23 and the positioning screw hole 1311 in sequence to fix the coating plate 5 to the mounting platform 1.

[0035] Because the mounting platform 1 has an array of positioning screw holes 1311, coating plates 5 of different sizes can be placed on the mounting platform 1. Then, pressure blocks 2 are arranged along the edge of the coating plate 5. The first block 21 of the pressure block 2 presses onto the coating plate 5, and the second block 22 is connected to the mounting platform 1. The Z-axis screw hole 23 is aligned with the positioning screw hole 1311 on the mounting platform 1. Then, knurled bolts 24 are used to pass through the Z-axis screw hole 23 and the positioning screw hole 1311 to screw the pressure block 2 to the mounting platform 1. The pressure block 2 presses and fixes the coating plate 5 on the mounting platform 1. Since the pressure block 2 and the mounting platform 1 are detachably connected, and the mounting platform 1 has an array of positioning screw holes 1311, the mounting platform 1 in this embodiment, together with the pressure block 2, can be used to fix coating plates 5 of various sizes without the need to customize tooling according to the size of the coating plate 5. The fixing of the coating plate 5 is convenient and quick, which helps to reduce the inspection cost and shorten the inspection time.

[0036] Mounting platform 1 includes a base 11, a middle platform 12, and a top platform 13. The base 11, middle platform 12, and top platform 13 are arranged sequentially from bottom to top along the Z-axis. The middle platform 12 is connected to the base 11 and can slide along the X-axis, while the top platform 13 is connected to the middle platform 12 and can slide along the Y-axis. A positioning screw hole 1311 is provided on the top platform 13. During use, the base 11 can be connected and fixed to the connecting platform of the tensile testing machine. The position of the top coating plate 5 can be adjusted in the X-axis and Y-axis directions through the middle platform 12 and the top platform 13, thereby enabling adhesion testing of the coating at different positions on the coating plate 5 without having to remove and reinstall the coating plate 5. This is convenient, quick, and the position adjustment is highly accurate.

[0037] refer to Figure 3 The base 11 includes a fixed connecting part 110 and an X-axis guide part 111. The X-axis guide part 111 is disposed on the upper surface of the fixed connecting part 110, that is, the X-axis guide part 111 is located on the side near the intermediate platform 12. The fixed connecting part 110 and the X-axis guide part 111 can be integrally formed, for example, by casting molten aluminum alloy and then grinding it. The fixed connecting part 110 has multiple connecting screw holes 1101, which extend along the Z-axis. The fixed connecting part 110 can be fixedly connected to the connecting platform of the tensile testing machine through the multiple connecting screw holes 1101 using connecting screws, which serve the functions of positioning and force transmission. The X-axis guide part 111 protrudes from the upper surface of the fixed connecting part 110, and the cross-section of the X-axis guide part 111 along the ZY plane is an inverted trapezoid, with the center of the inverted trapezoidal block hollowed out.

[0038] refer to Figure 4 The intermediate platform 12 includes an X-axis sliding portion 120 and a Y-axis guide portion 121. The Y-axis guide portion 121 is disposed above the X-axis sliding portion 120 and is located on the side near the top platform 13. An X-axis sliding groove 1201 is provided at the lower end of the X-axis sliding portion 120. The size and shape of the X-axis sliding groove 1201 are adapted to the protruding X-axis guide portion 111. When the X-axis guide portion 111 is accommodated in the X-axis sliding groove 1201, the surface of the X-axis guide portion 111 is in contact with the groove wall surface of the X-axis sliding groove 1201. The intermediate platform 12 can only slide along the X-axis guide portion 111 and cannot move in other directions. Since the X-axis guide portion 111 is inverted trapezoidal, the intermediate platform 12 also cannot move in the Z-axis direction. That is, the intermediate platform 12 can only slide in the X-axis direction. The X-axis sliding part 120 and the Y-axis guide part 121 can be integrally cast. Two parallel slides are formed between the X-axis sliding part 120 and the Y-axis guide part 121 along the Y-axis direction. That is, the cross-section of the Y-axis guide part 121 in the XZ plane is an inverted trapezoidal structure.

[0039] refer to Figure 5The top platform 13 includes a Y-axis sliding part 130 and a positioning connection part 131. The Y-axis sliding part 130 is located below the positioning connection part 131, that is, the Y-axis sliding part 130 is located on the side close to the middle platform 12. The Y-axis sliding part 130 is provided with a Y-axis sliding groove 1301. The size and shape of the Y-axis sliding groove 1301 are adapted to the Y-axis guide part 121. When the Y-axis guide part 121 is accommodated in the Y-axis sliding groove 1301, the surface of the Y-axis guide part 121 is in contact with the groove wall surface of the Y-axis sliding groove 1301. The bottom surface of the Y-axis sliding part 130 slides and engages with two slide rails. The top platform 13 can only slide along the Y-axis guide part 121 and cannot move in other directions. Since the Y-axis guide part 121 is inverted trapezoidal, the top platform 13 cannot move in the Z-axis direction either. That is, the top platform 13 can only slide in the Y-axis direction.

[0040] Multiple positioning screw holes 1311 are arranged in an array in the positioning connection part 131. When the coating plate 5 is fixed in the positioning connection part 131, its position can be changed with the movement of the top platform 13 and the middle platform 12, so that different positions of the coating plate 5 are aligned with the test head of the tensile testing machine, and the coating adhesion of different positions of the coating plate 5 can be detected.

[0041] The movement of the middle platform 12 and the top platform 13 can be achieved in a variety of ways.

[0042] In this embodiment, the intermediate platform 12 is driven to move and pause by the X-axis drive 112, and the top platform 13 is driven to move and pause by the Y-axis drive 122. Both the X-axis drive 112 and the Y-axis drive 122 can be servo motors. The X-axis drive 112 is mounted on the base 11, and the Y-axis drive 122 is mounted on the intermediate platform 12.

[0043] Specifically, the X-axis guide section 111 has first limiting holes 1111 on both sides of the hollow area. The two first limiting holes 1111 are positioned opposite each other. A first bearing 1112 is fixedly installed in the two first limiting holes 1111. The first bearing 1112 can be a ball bearing. The outer rings of the two first bearings 1112 are fixed in the two first limiting holes 1111 respectively. An X-axis worm gear 114 is fixedly installed through the inner rings of the two first bearings 1112. The X-axis worm gear 114 extends along the X-axis direction. One end of the X-axis worm gear 114 passes through the first bearing 1112 and is connected to the output shaft of the servo motor through a coupling. The servo motor is connected to the side wall of the base 11 through the X-axis connecting bracket 113. The bottom of the X-axis sliding part 120 is provided with a first worm wheel 125 via a first worm wheel frame 126. The first worm wheel 125 is rotatably mounted on the first worm wheel frame 126. The first worm wheel frame 126 is fixedly connected to the X-axis sliding part 120. The first worm wheel 125 meshes with the X-axis worm 114. When the X-axis drive member 112 is working, it can drive the X-axis worm 114 to rotate. The rotation of the X-axis worm 114 drives the meshing first worm wheel 125 to rotate, thereby driving the intermediate platform 12 to slide along the X-axis guide part 111.

[0044] The Y-axis guide section 121 has two second limiting holes 1211 on opposite sides of the hollow area. The two second limiting holes 1211 are positioned opposite each other. A second bearing 1212 is fixedly installed in the two second limiting holes 1211. The second bearing 1212 can also be a ball bearing. The outer rings of the two second bearings 1212 are fixed in the two second limiting holes 1211 respectively. A Y-axis worm gear 124 is fixedly installed through the inner rings of the two second bearings 1212. The Y-axis worm gear 124 extends along the Y-axis direction. One end of the Y-axis worm gear 124 passes through the second bearing 1212 and is connected to the output shaft of the servo motor on the intermediate platform 12 through a coupling. The servo motor is connected to the side wall of the intermediate platform 12 through the Y-axis connecting bracket 123. A second worm wheel (not shown in the figure) is provided at the bottom of the Y-axis sliding part 130 via a second worm wheel frame 132. The second worm wheel is rotatably mounted on the second worm wheel frame 132, which is fixedly connected to the Y-axis sliding part 130. The second worm wheel meshes with the Y-axis worm 124. When the Y-axis drive member 122 is working, it can drive the Y-axis worm 124 to rotate. The rotation of the Y-axis worm 124 drives the meshed second worm wheel to rotate, thereby driving the top platform 13 to slide along the Y-axis guide part 121.

[0045] Of course, the movement of the intermediate platform 12 and the top platform 13 can also be achieved using a lead screw and slider mechanism. For example, the bottom of the X-axis sliding part 120 has a protruding slider with a threaded through hole along the X-axis. The lead screw is positioned at the position of the X-axis worm gear 114, passing through the threaded through hole of the slider and engaging with the thread. When the X-axis drive component 112 operates, it drives the lead screw to rotate. Since the position of the lead screw is fixed, it only rotates and does not move. Therefore, the slider, which is threaded with it, will move along the lead screw, thereby driving the intermediate platform 12 to move along the X-axis. Similarly, the top platform 13 can also achieve movement in the Y-axis direction in the same way.

[0046] refer to Figure 6 The pressure block 2 includes a first block 21 and a second block 22. The first block 21 and the second block 22 are arranged perpendicularly, and one end of the first block 21 is fixedly connected to one end of the second block 22, making the pressure block 2 an L-shaped block. The L-shaped block transmits force evenly and has high rigidity. The pressure block 2 can be manufactured by integral molding such as casting, which has good reliability and is not easy to deform. A Z-axis screw hole 23 along the Z-axis direction is opened on the second block 22. When it is necessary to connect the pressure block 2 to the top platform 13, the Z-axis screw hole 23 is aligned with the positioning screw hole 1311, and then a knurled bolt 24 is used to pass through the Z-axis screw hole 23 and the positioning screw hole 1311 and screw them together, thereby fixing the pressure block 2 on the top platform 13. The pressure block 2 is fixed on the top platform 13, which can press and fix the coating plate 5 on the top platform 13. Understandably, the distance between the lower surface of the first block 21 and the upper surface of the top platform 13 is less than or equal to the thickness of the coating plate 5, so that the coating plate 5 can be pressed firmly onto the top platform 13. The edges of the pressure block 2 can also be chamfered to prevent scratching the operator.

[0047] After the coated plate 5 is fixed to the top platform 13, the test head of the tensile testing machine can be bonded to the surface of the coated plate 5, and then the tensile testing machine can be started to perform a pull-out test. For example, the tensile column connector 3 can be bonded to the coated plate 5, with one end of the connector 3 connecting to the surface of the coated plate 5 and the other end connecting to the tensile testing machine. After the tensile column connector 3 and the coated plate 5 are firmly bonded, the tensile testing machine can be started to perform a pull-out test. (Reference) Figure 7The tension column connector 3 includes a male connecting shaft 31, a female connecting sleeve 32, and a locking knob 33. One end of the male connecting shaft 31 is provided with an external thread, which is adapted to the internal thread of the female connecting sleeve 32. The threaded end of the male connecting shaft 31 is threadedly connected to the female connecting sleeve 32. At the same time, the locking knob 33 is threadedly connected to the male connecting shaft 31 and abuts against the end face of the female connecting sleeve 32 to prevent the male connecting shaft 31 and the female connecting sleeve 32 from loosening or slipping. The male connecting shaft 31 is also provided with a pin hole 311 along its own radial direction, so that when connected to a tension testing machine, the male connecting shaft 31 can be connected to the force-applying end of the tension testing machine by a pin. The end of the female connecting sleeve 32 is bonded to the surface of the coating plate 5.

[0048] Of course, the fixed bushing 4 can also be used in conjunction with the tension column connector 3 for testing. For details, please refer to [reference needed]. Figure 8 The fixed bushing 4 includes a flange portion 41 and a sleeve portion 42. One end of the sleeve portion 42 is fixedly connected to the center of the end face of the flange portion 41. The flange portion 41 is provided with a ring of circumferential threaded holes 411. The sleeve portion 42 is provided with a wall through hole 421 along its own radial direction. In use, the flange portion 41 is aligned with the positioning threaded hole 1311 of the top platform 13. Bolts are passed through the circumferential threaded hole 411 and the positioning threaded hole 1311 in sequence to fix the fixed bushing 4 onto the top platform 13. Then the tension column connector 3 is... The male end connecting shaft 31 is inserted into the sleeve part 42, so that the pin hole 311 is aligned with the wall through hole 421. Then, the pin is inserted to connect the tension column connector 3 to the fixed shaft sleeve 4. The end face of the female end connecting sleeve 32 is bonded and fixed to one side surface of the coating plate 5. At the same time, a tension column connector 3 is also connected to the force application end of the tensile testing machine. The female end connecting sleeve 32 of the tension column connector 3 is bonded to the other side surface of the coating plate 5. After the bonding is firm, the tensile testing machine can be started to realize the single tensile column test of the coating plate 5.

[0049] In this embodiment, the top platform 13 can be square, and its size is not specifically limited. For example, it can be 400mm × 400mm. This size of top platform 13 can at least accommodate coating plates 5 with specifications of 100mm × 100mm, 200mm × 200mm, and 300mm × 300mm for testing. The diameter of the positioning screw hole 1311 is also not limited. The total length of the tension column connector 3 can be 100mm, wherein the length of the male end connecting shaft 31 is 60mm and the diameter is 30mm, the length of the female end connecting sleeve 32 is 43mm and the diameter is 40mm, and the connection length between the female end connecting sleeve 32 and the male end connecting shaft 31 is 3mm.

[0050] refer to Figure 11 and Figure 12The device in this embodiment is also equipped with a positioning module 6, which enables automated and precise positioning of the detection area on the coating plate 5. The positioning module 6 includes a base shell 63, a rangefinder 61, and a control console 62. Two rangefinders 61 are located on the top edge of the base shell 63. The two rangefinders 61 are used for X-axis and Y-axis distance measurement and positioning, respectively. The control console 62 is communicatively connected to the rangefinders 61 and also communicatively connected to the servo motor. The rangefinders 61 detect the position and coordinate values ​​and then transmit them to the control console 62. The control console 62 controls the start and stop of the servo motor to ensure that the detection area of ​​the coating plate 5 is aligned with the tensile testing machine.

[0051] The testing device of this invention can perform coating adhesion tests on coating plates 5 of various specifications, exhibiting good adaptability, eliminating the need for tooling changes or customization, and simplifying operation, thus reducing testing costs and time. Furthermore, the use of L-shaped pressure blocks 2 ensures that the coating plate 5 remains stable and free from displacement or warping after being pressed and fixed, resulting in good uniformity during tensile testing and improving the accuracy of the test results.

[0052] An embodiment of the present invention also provides a testing method for testing the coating adhesion of a coated plate 5 using the above-described coating plate testing device, comprising the following steps: S1: Fix the mounting platform 1 to the connecting platform of the tensile testing machine, ensuring that the top surface of the mounting platform 1 is level; specifically, align the connecting screw hole 1101 of the base 11 with the screw hole on the bottom connecting platform of the tensile testing machine, and use bolts to fix the base 11 to the connecting platform of the tensile testing machine.

[0053] S2: Place the coating plate 5 to be tested on the top surface of the mounting platform 1 and adjust the position of the coating plate 5 so that the center of the coating plate 5 coincides with the center of the mounting platform 1; for example, when the coating plate 5 is a square plate, the center of the coating plate 5 can be aligned with the center of the top platform 13, and then the coating plate 5 can be adjusted so that the four sides of the coating plate 5 are parallel to the four sides of the top platform 13.

[0054] S3: A pressure block 2 is set at the edge of the coating plate 5. The second block 22 of the pressure block 2 is connected to the mounting platform 1. The first block 21 of the pressure block 2 presses on the coating plate 5. The knurled bolt 24 passes through the Z-axis screw hole 23 and the positioning screw hole 1311 to press and fix the coating plate 5 to the top surface of the mounting platform 1, so that the coating plate 5 cannot move.

[0055] S4: Attach the test column to the area to be tested on the coated plate 5. Connect the other end of the test column to the tensile testing head of the tensile testing machine. After the coating of the coated plate 5 is firmly bonded to the test column, start the tensile testing machine and record the test data.

[0056] After testing the coating adhesion in the central area of ​​coated plate 5, coating adhesion tests can also be performed on the edges or other parts of coated plate 5, for example... Figure 9 As shown, the coating adhesion at the upper right corner of the coated plate 5 is tested. The movement of the coated plate 5 can be driven by the X-axis drive 112 and the Y-axis drive 122; for example, as... Figure 10 As shown, the coating adhesion at the lower left corner of the coated plate 5 was tested.

[0057] There are several ways to connect the tensile testing machine and the coating plate 5. The test head / test column of the tensile testing machine can be directly bonded to the coating plate 5. Alternatively, the tensile column connector 3 can be used to connect the tensile testing machine to the coating plate 5. Or, the fixed bushing 4 can be used to cooperate with the tensile column connector 3 to perform a single tensile column test on the coating plate 5. The specific method can be selected according to the actual situation.

[0058] This invention also provides a testing method that can perform a single tensile column test on the coating of five coated plates using the aforementioned testing device, including: S1: Fix the mounting platform 1 to the connecting platform of the tensile testing machine, ensuring that the top surface of the mounting platform 1 is level; S2: Thread the fixed bushing 4 onto the top platform 13 of the mounting table 1; S3: The five coated plates to be tested are bonded to the end faces of the female connecting sleeves 32 of the two tension column connectors 3. One tension column connector 3 is connected to the force application end of the tension testing machine through the male connecting shaft 31 and the pin, and the other tension column connector 3 is connected to the fixed shaft sleeve 4 through the male connecting shaft 31 and the pin. S4: After the five coated panels are firmly bonded together, start the tensile testing machine and record the test data.

[0059] In step S3, while bonding the coating plate 5 to the end face of the female end connecting sleeve 32 of the two tension column connectors 3, the installation of the mounting platform 1 in step S1 and the fixing bushing 4 in step S2 can be carried out simultaneously. After the coating plate 5 is firmly bonded to the female end connecting sleeve 32, it can be installed and tested, which can save the time required for the entire testing process.

[0060] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A coating testing device for coated plates, characterized in that, include: Mounting platform (1), which has multiple positioning screw holes (1311) arranged in an array, and the mounting platform (1) is used to place the coating plate (5). The pressure block (2) includes a first block (21), a second block (22) and a knurled bolt (24). The first block (21) is connected to the second block (22). The second block (22) has a Z-axis screw hole (23). The knurled bolt (24) can pass through the Z-axis screw hole (23) and the positioning screw hole (1311) in sequence to position and fix the coating plate (5) on the mounting platform (1).

2. The coating plate coating testing device according to claim 1, characterized in that, The mounting platform (1) includes a base (11), an intermediate platform (12) and a top platform (13). The base (11), intermediate platform (12) and top platform (13) are arranged sequentially from bottom to top along the Z-axis. The intermediate platform (12) is connected to the base (11) and can slide along the X-axis. The top platform (13) is connected to the intermediate platform (12) and can slide along the Y-axis. The positioning screw hole (1311) is provided on the top platform (13).

3. The coating plate coating testing device according to claim 2, characterized in that, The base (11) includes a fixed connection part (110) and an X-axis guide part (111). The X-axis guide part (111) is disposed on the fixed connection part (110) and located on the side close to the intermediate platform (12). The intermediate platform (12) includes an X-axis sliding part (120) and a Y-axis guide part (121). The Y-axis guide part (121) is disposed on the X-axis sliding part (120) and located on the side close to the top platform (13). The X-axis sliding part (120) is provided with an X-axis sliding groove (1201). The X-axis guide part (111) is adapted to the X-axis sliding groove (1201) and is accommodated in the X-axis sliding groove (1201). The top platform (13) includes a Y-axis sliding part (130) and a positioning connection part (131). The Y-axis sliding part (130) is disposed on the positioning connection part (131) and located on the side close to the middle platform (12). The Y-axis sliding part (130) is provided with a Y-axis sliding groove (1301). The Y-axis sliding part (130) is adapted to the Y-axis sliding groove (1301). The Y-axis sliding part (130) is accommodated in the Y-axis sliding groove (1301). The positioning screw hole (1311) is disposed on the positioning connection part (131).

4. The coating plate coating testing device according to claim 3, characterized in that, The base (11) is also connected to an X-axis drive (112), which is used to drive the intermediate platform (12) to move along the X-axis direction; The intermediate platform (12) is also connected to a Y-axis drive (122), which is used to drive the top platform (13) to move along the Y-axis direction.

5. The coating plate coating testing device according to claim 4, characterized in that, An X-axis worm gear (114) is rotatably connected to the base (11), and the X-axis worm gear (114) is connected to the output end of the X-axis drive (112); The intermediate platform (12) is provided with a first worm gear (125), which meshes with the X-axis worm (114).

6. The coating plate coating testing device according to claim 4, characterized in that, A Y-axis worm gear (124) is rotatably connected to the intermediate platform (12), and the Y-axis worm gear (124) is connected to the output end of the Y-axis drive (122); The top platform (13) is provided with a second worm gear, which meshes with the Y-axis worm (124).

7. The coating plate coating testing device according to claim 4, characterized in that, The testing device also includes a positioning module (6), which is communicatively connected to the X-axis drive (112) and the Y-axis drive (122). The positioning module (6) is used to automatically position the coating plate (5).

8. The coating plate coating testing device according to claim 1, characterized in that, The first block (21) and the second block (22) are arranged perpendicularly, and the pressure block (2) is an L-shaped block.

9. The coating plate coating testing apparatus according to any one of claims 1-8, characterized in that, The testing device also includes a tension column connector (3), one end of which is used to connect to the surface of the coating plate (5), and the other end is used to connect to the tensile testing machine.

10. The coating plate coating testing device according to claim 9, characterized in that, The tension column connector (3) includes a male end connecting shaft (31) and a female end connecting sleeve (32). The male end connecting shaft (31) is connected to the female end connecting sleeve (32). The male end connecting shaft (31) is provided with a pin hole (311) in the radial direction.

11. A testing method, comprising testing the coating adhesion of a coated plate (5) using the coating testing apparatus according to any one of claims 1-10, characterized in that, include: Fix the mounting platform (1) to the connecting platform of the tensile testing machine, ensuring that the top surface of the mounting platform (1) is horizontal; Place the coating plate (5) to be tested on the top surface of the mounting platform (1) and adjust the position of the coating plate (5) so that the center of the coating plate (5) coincides with the center of the mounting platform (1); A pressure block (2) is set at the edge of the coating plate (5). The second block (22) of the pressure block (2) is connected to the mounting platform (1). The first block (21) of the pressure block (2) presses onto the coating plate (5). Knurled bolts (24) pass through the Z-axis screw hole (23) and the positioning screw hole (1311) to press and fix the coating plate (5) on the top surface of the mounting platform (1), so that the coating plate (5) cannot move. A test column is attached to the area to be tested on the coated plate (5). The other end of the test column is connected to the test head of the tensile testing machine. After the coating of the coated plate (5) and the test column are firmly bonded, the tensile testing machine is started and the test data is recorded.

12. A testing method, comprising performing a single tensile column test on the coating adhesion of a coated plate (5) using the coating testing device of claim 10, characterized in that, include: Fix the mounting platform (1) to the connecting platform of the tensile testing machine, ensuring that the top surface of the mounting platform (1) is horizontal; The fixed bushing (4) is threaded onto the top platform (13) of the mounting table (1); The coated plate (5) block to be tested is bonded to the end face of the female end connecting sleeve (32) of the two tension column connectors (3). One tension column connector (3) is connected to the force application end of the tension testing machine through the male end connecting shaft (31) and the pin, and the other tension column connector (3) is connected to the fixed shaft sleeve (4) through the male end connecting shaft (31) and the pin. After the coated board (5) block is firmly bonded, start the tensile testing machine and record the test data.

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