A nickel-free medium-temperature sealant drying wear resistance detection device and method based on visual image intelligent sensing

Abstract

The present application relates to the field of sealing agent quality detection, and specifically relates to a nickel-free medium-temperature sealing agent drying wear resistance detection device and method based on visual image intelligent sensing, which comprises: a rack, a visual detection device and a rotatable rotating frame are arranged on the rack; a support structure is arranged in two groups and is rotatably installed on the rotating frame, the support structure comprises a plurality of groups of first arc-shaped members and second arc-shaped members arranged at equal intervals in a circle, and the first arc-shaped members and the second arc-shaped members can form a cylindrical structure; when the rotating frame rotates, one of the cylindrical structures can be kept in a first state or a second state, and when the cylindrical structure is in the first state, the annular sandpaper can be driven to rotate; a pulling assembly is connected to the first arc-shaped members and the second arc-shaped members, in the second state, the pulling assembly can drive the plurality of groups of second arc-shaped members to move close to each other, and after the second arc-shaped members move a predetermined distance, the pulling assembly can further drive the plurality of groups of first arc-shaped members to move close to each other, thereby simplifying the detection process.

Description

Technical Field

[0001] This invention relates to the field of sealing agent quality testing, specifically a device and method for testing the drying and abrasion resistance of nickel-free medium-temperature sealing agents based on visual image intelligent sensing. Background Technology

[0002] Sealing agents are mainly used to seal micro-cracks or pinholes in materials, preventing corrosive media, stains, moisture, and gases from entering. At the same time, they fill in mechanically weak areas, lock in the underlying pigments and lubricating layers to prevent loss, and provide a hard and clean interface for subsequent coating or biomineralization.

[0003] In the process of quality testing of sealing agents, the main indicators involved are their internal composition and external abrasion resistance. Among them, the external abrasion resistance is mainly tested by the sandpaper roller friction method. During the test, the sealing agent is rubbed with sandpaper to test its abrasion resistance. However, sandpaper itself is a consumable. Once the cutting edge becomes dull, the cutting force drops sharply, the abrasion debris is backfilled, and the weight loss curve on the surface of the sealing agent immediately "flattens out", creating a false impression of "fake abrasion resistance".

[0004] Therefore, the sandpaper needs to be replaced regularly. For example, if 400# sandpaper is kept at 60 rpm under a friction pressure of 5N, the total test requires 250 revolutions. The sandpaper must be replaced every 80 revolutions. This results in frequent machine stops during the testing process, which prolongs the testing cycle and increases the workload of the testing personnel. Summary of the Invention

[0005] The purpose of this invention is to provide a device and method for testing the wear resistance of nickel-free medium-temperature sealing agents based on visual image intelligent sensing, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A device for testing the abrasion resistance of nickel-free medium-temperature sealing agent after drying based on visual image intelligent sensing includes:

[0008] A frame, on which a vision inspection device and a rotating frame are mounted;

[0009] The support structure is provided with two sets and rotatably mounted on the rotating frame. The support structure includes multiple sets of first arc-shaped members and second arc-shaped members arranged equidistantly around the circumference. The first arc-shaped members and the second arc-shaped members can form a cylindrical structure for supporting the annular sandpaper.

[0010] When the rotating frame rotates, it can keep one group of the cylindrical structures in a first state or a second state. When the cylindrical structure is in the first state, it can drive the annular sandpaper to rotate.

[0011] A traction assembly connects the first arc-shaped member and the second arc-shaped member. In the second state, the traction assembly can drive multiple sets of the second arc-shaped members to move closer to each other, and after the second arc-shaped members have moved a predetermined distance, it can drive multiple sets of the first arc-shaped members to move closer to each other.

[0012] As a further aspect of the present invention: a bracket is fixedly mounted on the frame, a stepper motor is fixedly mounted on the bracket, and the output shaft of the stepper motor is connected to the rotating frame;

[0013] Two sets of turntables are symmetrically mounted on the rotating frame. The turntables are connected to the first arc-shaped component and the second arc-shaped component through an elastic structure. The turntables are connected to the rotating frame through a coupling. The inside of the coupling is a hollow structure. The coupling is connected to the support through a drive structure. The drive structure can drive the coupling to rotate when the cylindrical structure is in the first state.

[0014] As a further embodiment of the present invention: the drive structure includes a drive motor fixedly mounted on the bracket, and a second gear is fixedly mounted on the output shaft of the drive motor, the second gear being adapted to a first gear connected to the coupling.

[0015] As a further embodiment of the present invention: multiple sets of sliding grooves are equidistantly arranged on the turntable, and a slider is slidably installed in the sliding groove, the slider being connected to the first arc-shaped member or the second arc-shaped member;

[0016] The elastic structure includes a horizontal shaft fixedly installed in the slide groove, the horizontal shaft being slidably connected to the slider, and a cylindrical spring being sleeved on the horizontal shaft, one end of the cylindrical spring being connected to the inner wall of the slide groove, and the other end being connected to the slider.

[0017] As a further embodiment of the present invention: the first arc-shaped member and the second arc-shaped member are staggered, and the sides of the first arc-shaped member and the second arc-shaped member are parallel to their direction of movement.

[0018] As a further embodiment of the present invention: the traction assembly includes:

[0019] The misaligned structure disposed within the coupling and connected to the first arc-shaped component and the second arc-shaped component has an annular protrusion at one end facing the bracket.

[0020] The traction structure is fixedly installed on the bracket, and in the second state, the annular protrusion can be embedded inside the traction structure.

[0021] As a further embodiment of the present invention: the traction structure includes a first electric telescopic rod fixedly installed on the bracket, a traction member is connected to the actuating end of the first electric telescopic rod, and an arc-shaped groove is formed inside the traction member, the arc-shaped groove being adapted to the annular protrusion.

[0022] As a further aspect of the present invention, it also includes:

[0023] A base plate is mounted on the frame, and a lifting plate is mounted on the base plate parallel to it. The base plate and the lifting plate are connected by a second electric telescopic rod.

[0024] A detachable latching element mounted on the lifting plate.

[0025] A method for testing the abrasion resistance of nickel-free mid-temperature sealing agent drying using the aforementioned vision image intelligent sensing-based device includes the following steps:

[0026] Step 1: Remove the snap-fit ​​part, seal the hole with the sealant to be tested, dry it in a 60℃ oven for 24 hours and weigh it, and finally place the snap-fit ​​part on the lifting plate;

[0027] Step 2: Control the lifting plate to move up until it fits against the annular sandpaper on the lower cylindrical structure, and adjust the pressure between them;

[0028] Step 3: Drive the structure to rotate the lower cylindrical structure so that the ring-shaped sandpaper rubs against the sealing agent on the locking parts;

[0029] Step 4: After the cylindrical structure rotates 80 revolutions, the rotating frame rotates 180° so that another set of ring-shaped sandpaper acts on the locking parts;

[0030] Step 5: Control the movement of the traction structure to shrink the upper cylindrical structure, remove the original ring sandpaper and put on a new ring sandpaper;

[0031] Step Six: After the friction operation is completed, remove the dust from the surface of the mating parts, weigh them again, and calculate the weight ratio before and after friction.

[0032] Compared with the prior art, the beneficial effects of the present invention are:

[0033] By setting up the first arc-shaped component, the second arc-shaped component, and the pulling component, when the cylindrical structure formed by the first arc-shaped component and the second arc-shaped component switches to the second state, the first arc-shaped component and the second arc-shaped component can perform a retraction action to facilitate the removal of worn sandpaper and the application of new sandpaper. During this process, the annular sandpaper applied to another set of cylindrical structures can perform a friction action on the sealing agent, thereby ensuring the continuity of the friction operation. In the process of the above action cycle, continuous friction operation on the sealing agent can be achieved, shortening the inspection cycle and reducing the workload.

[0034] The rotating frame, first gear, second gear, and drive motor enable the two sets of cylindrical structures to alternately switch between the first and second states. This allows the two sets of annular sandpaper to switch positions when one set of annular sandpaper becomes worn to a certain extent, so that the new, unworn annular sandpaper can be switched to the station for rubbing the sealing agent. This ensures the continuity of the entire friction operation and further shortens the wear resistance testing cycle of the sealing agent. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of one embodiment of a device for testing the abrasion resistance of nickel-free medium-temperature sealing agent based on visual image intelligent sensing.

[0036] Figure 2 This is a schematic diagram of the structure after the frame is removed in one embodiment of a device for testing the wear resistance of nickel-free medium-temperature sealing agent drying based on visual image intelligent sensing.

[0037] Figure 3 This is a schematic diagram of the structure of a device for testing the wear resistance of nickel-free medium-temperature sealing agent after drying, based on visual image intelligent sensing, from another angle after the frame is removed.

[0038] Figure 4 This is a schematic diagram of the rotating frame and cylindrical structure in one embodiment of a device for testing the wear resistance of nickel-free medium-temperature sealing agent drying based on visual image intelligent sensing.

[0039] Figure 5 This is a schematic diagram of the cylindrical structure and the tensioning component in one embodiment of a device for testing the abrasion resistance of nickel-free medium-temperature sealing agent based on visual image intelligent sensing.

[0040] Figure 6 This is a schematic diagram of the cylindrical structure in one embodiment of a device for testing the abrasion resistance of nickel-free medium-temperature sealing agent based on visual image intelligent sensing.

[0041] Figure 7 This is a schematic diagram of the cylindrical structure in one embodiment of a device for testing the wear resistance of nickel-free medium-temperature sealing agent drying based on visual image intelligent sensing, and another embodiment of the device.

[0042] Figure 8 This is a schematic diagram of the cylindrical structure in the retracted state of an embodiment of a device for testing the abrasion resistance of nickel-free medium-temperature sealing agent based on visual image intelligent sensing.

[0043] Figure 9 This is a schematic diagram of the structure of the first connecting part, the second connecting part, and the connecting rod in one embodiment of a device for testing the wear resistance of nickel-free medium-temperature sealing agent drying based on visual image intelligent sensing.

[0044] Figure 10 This is a schematic diagram of the structure of the tension member and connecting rod in one embodiment of a device for testing the wear resistance of nickel-free medium-temperature sealing agent drying based on visual image intelligent sensing.

[0045] Figure 11 This is a schematic diagram of the structure of the base plate, lifting plate, and locking component in one embodiment of a device for testing the wear resistance of nickel-free medium-temperature sealing agent drying based on visual image intelligent sensing.

[0046] In the diagram: 1. Frame; 2. Vision inspection device; 3. Support; 4. Stepper motor; 5. Rotating frame; 6. Turntable; 601. Slide groove; 7. Restricting roller; 8. Coupling; 9. First gear; 10. Second gear; 11. First arc-shaped component; 12. Second arc-shaped component; 13. Slider; 14. Horizontal shaft; 15. Cylindrical spring; 16. Connecting shaft; 17. First connecting part; 18. Second connecting part; 19. Connecting rod; 1901. Annular protrusion; 20. First electric telescopic rod; 21. Pulling component; 2101. Arc-shaped groove; 22. Base plate; 23. Lifting plate; 24. Second electric telescopic rod; 25. Clamping component; 26. Drive motor. Detailed Implementation

[0047] 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. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0048] Furthermore, elements in this invention are referred to as being "fixed to" or "set on" another element, which may be directly on the other element or may also include an intervening element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or may also include an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0049] Please see Figures 1 to 11 In this embodiment of the invention, a device for testing the dry wear resistance of nickel-free medium-temperature sealing agent based on visual image intelligent sensing includes: a frame 1, a support structure and a tensioning assembly.

[0050] The frame 1 is equipped with a vision inspection device 2 and a rotating frame 5. The vision inspection device 2 can detect the friction of the sealing agent in real time, capture the moment when the sealing agent is "weared through", and identify "brittle peeling". In order to improve the detection effect, a negative pressure extraction device (not shown in the figure) is provided at the front end of the vision inspection device 2 to collect the dust generated by friction and prevent dust interference.

[0051] The support structure is provided in two sets and rotatably mounted on the rotating frame 5. The support structure includes multiple sets of first arc-shaped members 11 and second arc-shaped members 12 arranged equidistantly around the circumference. The first arc-shaped members 11 and second arc-shaped members 12 can form a cylindrical structure for supporting the ring-shaped sandpaper. When the ring-shaped sandpaper needs to be replaced, the multiple sets of first arc-shaped members 11 and second arc-shaped members 12 can be driven to move. At this time, the above-mentioned cylindrical structure disappears, and the multiple sets of first arc-shaped members 11 and second arc-shaped members 12 can converge toward the center of the original cylindrical structure, which makes it more convenient to take out the discarded ring-shaped sandpaper and install the new ring-shaped sandpaper.

[0052] Please see Figures 2-5 When the rotating frame 5 rotates, it can keep one group of the cylindrical structures in a first state or a second state. When the cylindrical structure is in the first state, it can drive the annular sandpaper to rotate. Specifically:

[0053] A bracket 3 is fixedly installed on the frame 1, and a stepper motor 4 is fixedly installed on the bracket 3. The output shaft of the stepper motor 4 is connected to the rotating frame 5.

[0054] Two sets of turntables 6 are symmetrically rotatably mounted on the rotating frame 5. The outer circumference of the turntable 6 is rolledly connected to the limiting rollers 7 rotatably mounted on the rotating frame 5. The turntable 6 is connected to the first arc-shaped member 11 and the second arc-shaped member 12 through an elastic structure. The turntable 6 and the rotating frame 5 are connected by a coupling 8. The inside of the coupling 8 is a hollow structure. The coupling 8 is connected to the support 3 through a drive structure. The drive structure can drive the coupling 8 to rotate when the cylindrical structure is in the first state. The drive structure includes a drive motor 26 fixedly mounted on the support 3. A second gear 10 is fixedly mounted on the output shaft of the drive motor 26. The second gear 10 is adapted to the first gear 9 connected to the coupling 8.

[0055] It should be noted that for the two sets of couplings 8, the coupling 8 located below the stepper motor 4 is in the first state, and the coupling 8 located above the stepper motor 4 is in the second state. When one set of couplings 8 rotates to the first state, the first gear 9 can mesh with the second gear 10. At this time, the other set of couplings 8 is in the second state.

[0056] In this embodiment, the stepper motor 4 can drive the rotating frame 5 to rotate 180° each time, and can lock the position of the rotating frame 5 after rotation. Two sets of couplings 8 are symmetrically arranged on the rotating frame 5. This allows the two sets of couplings 8 to perform circular motion when the rotating frame 5 rotates. When the trajectories are the same, the motion trajectory of the first gear 9 set on the coupling 8 is tangent to the second gear 10. This allows the lower first gear 9 of the two sets of first gears 9 to mesh with the second gear 10. Thus, when the second gear 10 rotates, it drives the lower first gear 9 to rotate, causing the corresponding cylindrical structure to rotate and the annular sandpaper to rotate to rub the sealing agent.

[0057] Based on the above settings, the two sets of cylindrical structures can alternately switch between the first and second states, so that when one set of annular sandpapers is worn to a certain extent, the two sets of annular sandpapers can switch positions, and the new unworn annular sandpapers can be switched to the station for rubbing the sealing agent, thereby ensuring the continuity of the entire friction operation and shortening the wear resistance testing cycle of the sealing agent.

[0058] Please see Figure 6 The turntable 6 is provided with multiple sets of sliding grooves 601 at equal intervals around its circumference. A slider 13 is slidably installed in the sliding groove 601. The slider 13 is connected to the first arc-shaped member 11 or the second arc-shaped member 12.

[0059] The elastic structure includes a horizontal shaft 14 fixedly installed in the slide groove 601. The horizontal shaft 14 is slidably connected to the slider 13, and a cylindrical spring 15 is sleeved on the horizontal shaft 14. One end of the cylindrical spring 15 is connected to the inner wall of the slide groove 601, and the other end is connected to the slider 13.

[0060] In the initial state, the cylindrical spring 15 is compressed. At this time, the elastic force generated by the cylindrical spring 15 can act in the opposite direction on the slider 13, so that the slider 13 can abut against the end of the groove 601 away from the center of the turntable 6. In this state, when the annular sandpaper is fitted on the first arc-shaped member 11 and the second arc-shaped member 12, the first arc-shaped member 11 and the second arc-shaped member 12 can open the annular sandpaper and make the annular sandpaper adhere to the circumferential surface of the cylindrical structure formed by the first arc-shaped member 11 and the second arc-shaped member 12. When the turntable 6 is in the first state and rotates, the annular sandpaper will also rotate accordingly, thereby rubbing the sealing agent. Through the above settings, the shape of the annular sandpaper in the rubbing state can be guaranteed, and during the rubbing process, it can contact the sealing agent evenly, so that the wear degree of each area of ​​the annular sandpaper is consistent, and the utilization rate of the sandpaper is improved.

[0061] Please see Figures 2 to 10The pulling assembly connects the first arc-shaped member 11 and the second arc-shaped member 12. In the second state, the pulling assembly can drive multiple sets of the second arc-shaped members 12 to move closer to each other. After the second arc-shaped members 12 have moved a predetermined distance, the assembly can then drive multiple sets of the first arc-shaped members 11 to move closer to each other, so that the first arc-shaped members 11 and the second arc-shaped members 12 can switch from the formed cylindrical structure to the retracted state. In the retracted state, it is easier to put the annular sandpaper sleeve on the first arc-shaped member 11 and the second arc-shaped member 12.

[0062] The first arc-shaped member 11 and the second arc-shaped member 12 are staggered, and the sides of the first arc-shaped member 11 and the second arc-shaped member 12 are parallel to their direction of movement. This arrangement prevents interference between the first arc-shaped member 11 and the second arc-shaped member 12 when they switch from a retracted state to a cylindrical structure, or from a cylindrical structure to a retracted state (see reference). Figure 6 , Figure 8 ).

[0063] Preferably, as a further optimized technical solution of the present invention, only the side of the second arc-shaped member 12 is parallel to its direction of movement (see reference). Figure 7 Since the second arc-shaped member 12 takes priority in this embodiment, it is only necessary to ensure that the movement of the second arc-shaped member 12 is not obstructed in the initial state. Compared with the previous embodiment, this embodiment can ensure that the cylindrical structure formed between the first arc-shaped member 11 and the second arc-shaped member 12 is smoother, reducing the jumping phenomenon that occurs during the rotation of the cylindrical structure to rub the sealing agent.

[0064] The traction component includes:

[0065] The misaligned structure disposed within the coupling 8 and connected to the first arc-shaped member 11 and the second arc-shaped member 12 has an annular protrusion 1901 formed at one end of the misaligned structure facing the bracket 3.

[0066] The misaligned structure includes a first connecting part 17 and a second connecting part 18 slidably disposed within the coupling 8. The first connecting part 17 and the second connecting part 18 are respectively connected to the second arc-shaped member 12 and the first arc-shaped member 11 through multiple sets of connecting shafts 16.

[0067] A connecting rod 19 is fixedly installed on the first connecting part 17. The connecting rod 19 is slidably connected to the second connecting part 18. The annular protrusion 1901 is disposed at the end of the connecting rod 19 away from the first connecting part 17.

[0068] The traction structure is fixedly installed on the bracket 3. In the second state, the annular protrusion 1901 can be embedded inside the traction structure. The traction structure includes a first electric telescopic rod 20 fixedly installed on the bracket 3. A pulling member 21 is connected to the actuating end of the first electric telescopic rod 20. An arc-shaped groove 2101 is formed inside the pulling member 21, and the arc-shaped groove 2101 is adapted to the annular protrusion 1901.

[0069] In the initial state, supported by the elastic force provided by the columnar spring 15, the first connecting part 17 and the second connecting part 18 can be in a stable state. After the annular sandpaper on one of the cylindrical structures completes the friction with the sealing agent for a predetermined time, the rotating frame 5 will rotate, so that the annular protrusion 1901 corresponding to the cylindrical structure can make a circular motion. When the cylindrical structure switches to the second state, the annular protrusion 1901 can move into the arc groove 2101. At this time, the first electric telescopic rod 20 is activated, which can pull the connecting rod 19. During this process, the first connecting part 17 will be activated first, and multiple sets of second arc-shaped parts 12 will move closer to each other. The first connecting part 17 will abut against the second connecting part 18 after the side of the second arc-shaped part 12 is misaligned with the side of the first arc-shaped part 11. At this time, the first connecting part 17 and the second connecting part 18 move synchronously, so that the first arc-shaped part 11 and the second arc-shaped part 12 both perform a retracting action. At this time, it is easier to remove the worn ring sandpaper and put sandpaper on the first arc-shaped part 11 and the second arc-shaped part 12. Then, when the first electric telescopic rod 20 moves in the opposite direction, the elastic force provided by the column spring 15 will be used to open the new sandpaper so that when the rotating frame 5 rotates next time, the new sandpaper can switch to the first state for friction.

[0070] During the above process, another set of cylindrical structures performs a switch from the second state to the first state and then conducts a friction test on the sealing agent.

[0071] Based on the above configuration, when the cylindrical structure formed by the first arc-shaped component 11 and the second arc-shaped component 12 switches to the second state, the first arc-shaped component 11 and the second arc-shaped component 12 can perform a retraction action to facilitate the removal of worn sandpaper and the application of new sandpaper. During this process, the annular sandpaper applied to another set of cylindrical structures can perform a friction action on the sealing agent, thereby ensuring the continuity of the friction operation. In the process of the above action cycle, continuous friction operation on the sealing agent can be achieved, shortening the inspection cycle and reducing the workload.

[0072] Please see Figure 2 , Figure 11 The device for testing the wear resistance of nickel-free medium-temperature sealing agent drying based on visual image intelligent sensing further includes:

[0073] A base plate 22 is set on the frame 1, and a lifting plate 23 parallel to it is set on the base plate 22. The base plate 22 and the lifting plate 23 are connected by a second electric telescopic rod 24.

[0074] A detachable latching piece 25 is mounted on the lifting plate 23.

[0075] In the initial state, the locking part 25 needs to be removed, and then the sealing agent to be tested is used for sealing treatment. Then, it is dried in an oven at 60°C for 24 hours and weighed. Finally, the locking part 25 is placed on the lifting plate 23, and the second electric telescopic rod 24 is controlled to move so that the lifting plate 23 drives the locking part 25 to rise, and the ring sandpaper and the sealing agent layer on the locking part 25 maintain a predetermined pressure.

[0076] The above settings enable rapid replacement of the card assembly 25, thereby achieving continuous testing.

[0077] As an embodiment of the present invention, a method for testing the wear resistance of nickel-free medium-temperature sealing agent drying using the aforementioned visual image intelligent sensing-based device is also proposed, comprising the following steps:

[0078] Step 1: Remove the snap-fit ​​part 25, seal the hole with the sealant to be tested, dry it in a 60℃ oven for 24 hours and weigh it, and finally place the snap-fit ​​part 25 on the lifting plate 23.

[0079] Step 2: Control the lifting plate 23 to move upwards until it fits against the annular sandpaper on the lower cylindrical structure, and adjust the pressure between them;

[0080] Step 3: Drive the structure to rotate the lower cylindrical structure so that the annular sandpaper rubs against the sealing agent on the locking part 25;

[0081] Step 4: After the cylindrical structure rotates 80 revolutions, the rotating frame 5 rotates 180° so that another set of annular sandpaper acts on the locking part 25;

[0082] Step 5: Control the movement of the traction structure to shrink the upper cylindrical structure, remove the original ring sandpaper and put on a new ring sandpaper;

[0083] Step 6: After the friction operation is completed, remove the dust from the surface of the clamping part 25, weigh it again, and calculate the weight ratio before and after friction.

[0084] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0085] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A nickel-free medium temperature sealant dry abrasion resistance detection device based on visual image intelligent sensing, characterized by, The utility model relates to a kind of sandpaper rotating device, including: Rack, visual detection device and rotatable rotating frame are arranged on the rack; Support structure is provided with two groups and is rotatably installed on the rotating frame, and the support structure includes multiple groups of first arc-shaped parts and second arc-shaped parts arranged at equal intervals in a circle, and the first arc-shaped parts and second arc-shaped parts can form a cylindrical structure for supporting annular sandpaper; When the rotating frame rotates, one of the cylindrical structures can be kept in a first state or a second state, and when the cylindrical structure is in the first state, it can drive the annular sandpaper to rotate; Pulling assembly is connected to the first arc-shaped part and the second arc-shaped part, and in the second state, the pulling assembly can drive multiple groups of the second arc-shaped parts to move closer to each other, and after the second arc-shaped parts move a predetermined distance, the pulling assembly can drive multiple groups of the first arc-shaped parts to move closer to each other; The rack is fixedly installed with a bracket, the bracket is fixedly installed with a stepping motor, and the output shaft of the stepping motor is connected to the rotating frame; The rotating frame is symmetrically rotatably installed with two groups of rotating discs, the rotating discs are connected to the first arc-shaped parts and the second arc-shaped parts through elastic structures, and the rotating discs are connected to the rotating frame through shaft coupling, the shaft coupling is hollow inside, and the shaft coupling is connected to the bracket through a driving structure, the driving structure can drive the shaft coupling to rotate when the cylindrical structure is in the first state; The pulling assembly includes: A mismatching structure is arranged in the shaft coupling and connected to the first arc-shaped parts and the second arc-shaped parts, and one end of the mismatching structure towards the bracket is formed with an annular protrusion; A traction structure is fixedly installed on the bracket, and in the second state, the annular protrusion can be embedded in the traction structure; A bottom plate is further arranged on the rack, the bottom plate is provided with a lifting plate parallel to the bottom plate, and the bottom plate and the lifting plate are connected through a second electric telescopic rod; And a clamping piece is detachably installed on the lifting plate.

2. The nickel-free medium temperature sealant dry abrasion resistance detection device based on visual image intelligent sensing according to claim 1, characterized in that, The driving structure includes a driving motor fixedly installed on the bracket, a second gear is fixedly installed on the output shaft of the driving motor, and the second gear is matched with a first gear connected to the shaft coupling.

3. The nickel-free medium temperature sealant dry abrasion resistance detection device based on visual image intelligent sensing according to claim 1, characterized in that, Multiple groups of sliding grooves are arranged at equal intervals in a circle on the rotating disc, a sliding block is slidably installed in the sliding groove, and the sliding block is connected to the first arc-shaped part or the second arc-shaped part; The elastic structure includes a horizontal shaft fixedly installed in the sliding groove, the horizontal shaft is slidably connected to the sliding block, and a cylindrical spring is sleeved on the horizontal shaft, one end of the cylindrical spring is connected to the inner wall of the sliding groove, and the other end is connected to the sliding block.

4. The nickel-free medium temperature sealant dry abrasion resistance detection device based on visual image intelligent sensing according to claim 1, characterized in that, The first arc-shaped part and the second arc-shaped part are arranged in an interleaved manner, and the side edges of the first arc-shaped part and the second arc-shaped part are parallel to the movement direction.

5. The nickel-free medium temperature sealant dry abrasion resistance detection device based on visual image intelligent sensing according to claim 1, characterized in that, The mismatching structure includes a first connecting part and a second connecting part slidably arranged in the shaft coupling, and the first connecting part and the second connecting part are respectively connected to the second arc-shaped part and the first arc-shaped part through multiple groups of connecting shafts; A connecting rod is fixedly installed on the first connecting part, the connecting rod is slidably connected to the second connecting part, and the annular protrusion is arranged at one end of the connecting rod away from the first connecting part.

6. The nickel-free medium temperature sealant dry abrasion resistance detection device based on visual image intelligent sensing according to claim 1, characterized in that, The traction structure comprises a first electric telescopic rod fixedly installed on the support, a traction piece is connected to the action end of the first electric telescopic rod, an arc-shaped groove is formed in the traction piece, and the arc-shaped groove is matched with the annular protrusion.

7. A method for using the nickel-free, medium-temperature sealant dry abrasion resistance detection device based on visual image intelligent sensing according to any one of claims 1-6, characterized in that, The method comprises the following steps: Step one: remove the clamping piece, use the sealing agent to be tested to perform sealing treatment, then dry in a 60℃ oven for 24h and weigh, and finally place the clamping piece on the lifting plate; Step two: control the lifting plate to move upward to be attached to the annular sandpaper on the lower cylindrical structure, and adjust the pressure therebetween; Step three: drive the structure to act, drive the lower cylindrical structure to rotate, so that the annular sandpaper rubs the sealing agent on the clamping piece; Step four: after the cylindrical structure rotates 80 times, the rotating frame rotates 180°, so that another set of annular sandpaper acts on the clamping piece; Step five: control the traction structure to act, so that the upper cylindrical structure shrinks, and the original annular sandpaper is removed and a new annular sandpaper is sleeved; Step six: after the rubbing operation is completed, remove the dust on the surface of the clamping piece, weigh again, and calculate the weight ratio before and after rubbing.

Images