Coating quality evaluation device and coating quality evaluation method

Abstract

The present invention relates to the field of visual inspection technology, and discloses a coating quality assessment device and an assessment method thereof, comprising a mounting frame, wherein a plurality of driving sprockets are movably mounted inside the mounting frame, and the driving sprockets are provided with a driving chain on the outer meshing sleeve, and a driving motor and an industrial computer are fixedly mounted on the front of the driving sprocket, and a detection mechanism is mounted on the top of the mounting frame, and a uniformly distributed conveying clamp mechanism is arranged outside the driving chain, and the conveying clamp mechanism comprises a mounting base plate and two groups of clamp components arranged on the mounting base plate. The coating quality assessment device and the assessment method thereof, when the conveying clamp mechanism drives the product to move into place, the detection mechanism visually inspects the upper half of the product, and then drives the U-shaped frame to be clamped to the outside of the product through the electric telescopic rod three, and drives the clamping screw to move to clamp the product through the electric telescopic rod two, and the rotating motor drives the product to flip 180 degrees through the swing arm and the clamping screw.

Description

Technical Field

[0001] The present invention relates to the technical field of visual inspection, in particular to a coating quality evaluation device and an evaluation method thereof. Background Art

[0002] Coating is a thin layer applied to metal, fabric, plastic and other substrates for the purpose of protection, insulation, decoration, etc. For example, lignin, the main component of wood, will degrade under ultraviolet radiation. At the same time, the large number of hydroxyl groups on the surface of wood are hydrophilic. Under the action of rain, wind erosion, etc., the surface of wood will be damaged. In order to extend the life of wooden products, it is necessary to set a coating on the surface.

[0003] When coating products, there are often missing, uneven, scratched and other problems. In order to ensure the quality of the product coating, the coating quality needs to be evaluated. Common quality assessment devices in the prior art usually use visual recognition mechanisms to perform visual inspections on products. During inspection, most of them require additional positioning fixtures to stably clamp the product on the carrier of the inspection device. However, common fixtures will block part of the product during operation, so that the visual recognition mechanism cannot detect the image of the complete product, resulting in the inability to complete a comprehensive quality assessment of the product coating. It is usually necessary to manually adjust the product angle, which is time-consuming and labor-intensive. In addition, the existing inspection device usually places the product in the form of a carrier, and can only clamp a group of products at a time, and cannot achieve continuous visual inspection of the product to complete the quality assessment, resulting in low inspection efficiency. Summary of the invention

[0004] The object of the present invention is to provide a coating quality assessment device and an assessment method thereof to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a coating quality evaluation device, comprising a mounting frame, a plurality of driving sprockets are movably mounted inside the mounting frame, and a driving chain is mounted on the outer meshing sleeve of the driving sprocket, a driving motor and an industrial computer are fixedly mounted on the front of the driving sprocket, a detection mechanism is mounted on the top of the mounting frame, a uniformly distributed conveying fixture mechanism is arranged outside the driving chain, and the conveying fixture mechanism comprises a mounting base plate and two sets of fixture components arranged on the mounting base plate, and a product is clamped on the top of the fixture component;

[0006] The fixture component includes a fixture box, a top plate fixedly mounted on the top of the fixture box, a plurality of support rods passing through the top plate, a compression spring movably mounted on the outside of the support rods, and a locking seat clamped inside the fixture box. The locking seat can move inside the fixture box and can be against the support rods. The plurality of support rods in the fixture component can be squeezed by the product to form a clamping seat on the top thereof that matches the product.

[0007] The mounting frame is provided with a flipping and conveying mechanism at a position directly below the detection mechanism, and the flipping and conveying mechanism includes a U-shaped frame slidably mounted on the mounting frame, an electric telescopic rod 1 and an electric telescopic rod 3 fixedly connected to the adjusting door frame, a U-shaped frame slidably mounted on the adjusting door frame, two sets of swing arms movably mounted on the U-shaped frame, an electric telescopic rod 2 fixedly mounted on the swing arms, and a rotating motor fixedly mounted on the adjusting door frame. The flipping and conveying mechanism can transport the product on the top of one group of clamp components in the conveying clamp mechanism to the top of another group of clamp components, and rotate the product 180° during the transportation process.

[0008] Preferably, there are two groups of drive chains, and the two groups of drive chains are evenly distributed inside the mounting frame. The drive chains are provided with ear plates that cooperate with the conveying fixture mechanism. The output shaft of the drive motor is fixedly connected to the drive sprocket at either end. The drive motor is electrically connected to the industrial control computer. Under the control of the industrial control computer, the drive motor can drive the drive sprocket and the drive chain to rotate intermittently, thereby intermittently driving the product to the bottom of the detection mechanism through the conveying fixture mechanism, thereby realizing continuous detection and evaluation of the product and improving work efficiency.

[0009] Preferably, the detection mechanism includes an annular hanging rail, a multi-axis robotic arm movably mounted on the bottom of the annular hanging rail, a visual detection component is fixedly mounted on one end of the multi-axis robotic arm away from the annular hanging rail, and a servo motor is fixedly mounted on the end close to the annular hanging rail, a driving gear is fixedly mounted on the output shaft of the servo motor, a transmission gear plate is fixedly mounted on the bottom of the annular hanging rail, and the transmission gear plate and the driving gear are meshed with each other, the multi-axis robotic arm, servo motor, and visual detection component are all electrically connected to an industrial control computer, and the servo motor drives the driving gear to rotate and cooperate with the transmission gear plate, so as to drive the multi-axis robotic arm to move in a circle at the bottom of the annular hanging rail, thereby realizing a comprehensive inspection of the product around.

[0010] Preferably, the support rods are arranged in a rectangular array on the top plate, and rubber heads are provided at the top ends of the support rods. The compression springs are located at the top of the top plate. When the product is clamped, several support rods in the clamp component are compressed and contracted according to the shape of the product ends, and are locked by a locking seat, forming a clamping seat adapted to the product at the top of the clamp component to ensure the stability of the product after clamping.

[0011] Preferably, a slot cooperating with the locking seat is provided inside the clamp box, an adjusting screw is threadedly connected to one end of the clamp box, and the adjusting screw is movably connected to the locking seat, and rotating the adjusting screw can drive the locking seat to move, thereby adjusting the locking state of the support rod.

[0012] Preferably, the locking seat is provided with a waist-shaped locking hole that cooperates with the support rod, and a locking ear plate is provided at one end of the locking hole. The inner wall of the locking ear plate and the outside of the support rod are provided with matte surfaces that cooperate with each other, thereby increasing the friction between the locking ear plate and the support rod, thereby further improving the locking effect of the support rod, so that the support rod can stably support the product.

[0013] Preferably, the adjusting gantry is in the shape of "L", the horizontal section of the adjusting gantry is slidably installed on the bottom of the mounting frame, the electric telescopic rod three is fixedly installed on the bottom of the mounting frame, and the output shaft of the electric telescopic rod three is fixedly connected to the adjusting gantry, the electric telescopic rod three is electrically connected to the industrial control computer, the electric telescopic rod three drives the adjusting gantry and the U-shaped frame to move, so as to facilitate the adjustment of the position of the U-shaped frame, thereby ensuring that the U-shaped frame can transport the product and avoiding the interference of the U-shaped frame with the action of the detection mechanism.

[0014] Preferably, a guide rail cooperating with the U-shaped frame is provided on the vertical section of the adjusting door frame, the output shaft of the electric telescopic rod one is fixedly connected to the U-shaped frame, the electric telescopic rod one is electrically connected to the industrial control computer, and the U-shaped frame is driven to move by the electric telescopic rod one. The U-shaped frame can be adjusted according to the height dimension of the product, so that the electric telescopic rod two in the U-shaped frame can clamp the product in the middle position of the product.

[0015] Preferably, the U-shaped frame is provided with an air avoidance groove cooperating with the electric telescopic rod 2, a plurality of clamping screws are arranged on the output shaft of the electric telescopic rod 2, the output shaft of the rotating motor is fixedly connected to any swing arm, the rotating motor and the electric telescopic rod 2 are electrically connected to the industrial control computer, and the swing arm on the output shaft is driven by the rotating motor to perform a 180° flip, so that the product can be accurately moved from one group of fixture components to another group of fixture components, so that the lower half of the product is exposed, thereby realizing a comprehensive inspection of the product.

[0016] A coating quality evaluation method comprises the following steps:

[0017] S1. Before testing the product, first set the clamping seats that match the product on the two sets of clamp components in the conveying clamp mechanism, place the product on the top of the clamp component on the top of the installation base plate close to the flipping and conveying mechanism, apply downward pressure to the product, and the product applies pressure to several support rods in the clamp component. Several support rods shrink into the clamp box according to the shape of the bottom end of the product, and a clamping seat that matches the bottom end of the product is formed on the top of the clamp component. Rotate the adjusting screw to drive the locking seat to move, squeeze the support rod at the corresponding position through the locking ear plate, and lock the support rod to complete the setting of the clamping seat on the top of a set of clamp components;

[0018] S2. The industrial computer controls the electric telescopic rod 1 to drive the U-shaped frame to move to the middle position of the product height direction, so that the U-shaped frame can be carried in the middle position of the product, so that the product can be accurately moved along one set of clamp components to another set of clamp components. The clamping screws on the output shafts of the two sets of electric telescopic rods 2 are adjusted according to the shapes of both sides of the product, so that the two sets of electric telescopic rods 2 drive the clamping screws to move and stably clamp the product;

[0019] S3. The industrial computer controls two sets of electric telescopic rods to drive the clamping screws to move and clamp the product, and controls the rotating motor to drive the swing arm and the product to flip 180 degrees, flipping the product along one set of clamp components to another set of clamp components. After the product flips under the drive of the swing arm, it will exert pressure on the support rods in the other set of clamp components. Several support rods shrink according to the shape of the top of the product, and the adjusting screws at the corresponding positions are rotated to drive the locking seat to move, lock the support rods in the other set of clamp components, and complete the setting of the clamping seat on the top of the other set of clamp components;

[0020] S4. When inspecting the product, the industrial computer controls the driving motor to drive the driving sprocket and the driving chain to rotate intermittently, and drives the conveying fixture mechanism to move intermittently inside the mounting frame, and intermittently conveys the product to the bottom of the inspection mechanism. The product is pre-clamped on the top of the fixture component close to the side of the flipping and conveying mechanism through the clamping seat in the conveying fixture mechanism. When the conveying fixture mechanism is activated, the industrial computer controls the detection mechanism to activate and inspect the stopped product;

[0021] S5. The industrial computer controls the multi-axis robot arm to drive the visual inspection component to move, and controls the servo motor to drive the active gear to rotate and cooperate with the transmission gear disc, driving the multi-axis robot arm to move in a circle on the circular hanging rail to perform visual inspection on the upper part of the product. The operation trajectory of the inspection mechanism is pre-set by the industrial computer. After inspecting the upper part of the product, the industrial computer controls the electric telescopic rod three to drive the adjustment door frame and the U-shaped frame to move to the side close to the conveying fixture mechanism, and clamps the U-shaped frame to the outside of the product. The industrial computer then controls the electric telescopic rod two to clamp the product, and then controls the rotating motor to drive the swing arm to flip, flip the product and transport it to another set of fixture components. The industrial computer controls the inspection mechanism again to perform visual inspection on the exposed lower half of the product after flipping. The industrial computer receives the visual inspection data of the visual inspection component and evaluates the quality of the product surface coating based on the inspection data.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The coating quality evaluation device and the evaluation method thereof are provided by arranging a ring-shaped driving chain in the mounting frame, and arranging a conveying clamp mechanism matched with the product on the conveying clamp mechanism. After the conveying clamp mechanism clamps the product, the driving chain is driven by the driving motor to rotate continuously and intermittently in the mounting frame to continuously convey the product, and the visual inspection component is driven to rotate by a multi-axis mechanical arm that can move in a ring to perform visual inspection on the surface coating of the product, thereby realizing continuous inspection of the product and improving the inspection efficiency. At the same time, the inspection data is transmitted to the industrial control computer for comparison to realize the evaluation of the coating quality of the product.

[0024] 2. The coating quality evaluation device and the evaluation method thereof are as follows: after the conveying clamp mechanism drives the product to move into position, the detection mechanism visually inspects the upper half of the product, and then drives the U-shaped frame to clamp the outside of the product through the electric telescopic rod three, and then drives the clamping screw to move to clamp the product through the electric telescopic rod two. The rotating motor then drives the product to flip 180 degrees through the swing arm and the clamping screw, so that the detection mechanism can visually inspect the lower half of the product. At the same time, several clamping screws on the electric telescopic rod two can be adaptively adjusted according to the shape of the product to ensure the stability of the clamping screws clamping the product. In addition, the height of the U-shaped frame can be adjusted through the electric telescopic rod pair according to the height of the product to ensure that the U-shaped frame can flip the product in the middle position in the height direction of the product, thereby improving the accuracy of positioning after flipping.

[0025] 3. The coating quality evaluation device and the evaluation method thereof can provide stable support for the product before and after flipping by arranging two groups of clamp components in the conveying clamp mechanism. At the same time, when clamping the product, several support rods in the clamp components can be compressed and contracted according to the shape of the product end, and the support rods can be locked by driving the locking seat to move, forming a clamping seat adapted to the product at the top of the clamp component to ensure the stability of the product after clamping. At the same time, it has a wide range of applications and can realize the clamping of products of different shapes. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure after the overall combination of the present invention;

[0027] Figure 2 It is a structural schematic diagram of the detection mechanism in the present invention;

[0028] Figure 3 It is a structural schematic diagram of the multi-axis robotic arm in the present invention;

[0029] Figure 4 It is a schematic diagram of the structure inside the installation rack in the present invention;

[0030] Figure 5 It is a schematic diagram of the structure of the driving chain and the driving sprocket in the present invention;

[0031] Figure 6 It is a structural schematic diagram of the conveying fixture mechanism in the present invention;

[0032] Figure 7 It is a structural schematic diagram of the cross section of the fixture box in the present invention;

[0033] Figure 8 It is a structural schematic diagram of the locking seat in the present invention;

[0034] Fig. 9 It is a structural schematic diagram of the turning mechanism in the present invention;

[0035] Fig.10 It is a structural schematic diagram of the swing arm in the present invention.

[0036] Fig.11 It is a schematic diagram of the structure of the turning mechanism of the present invention when it is working.

[0037] In the figure: 1. Mounting frame; 2. Driving sprocket; 3. Driving chain; 4. Driving motor; 5. Conveying fixture mechanism; 51. Mounting base plate; 52. Fixture components; 521. Fixture box; 522. Top plate; 523. Support rod; 524. Compression spring; 525. Locking seat; 526. Locking ear plate; 527. Adjusting screw; 6. Turning and transporting mechanism; 61. Adjusting door frame; 62. U-shaped frame; 63. Electric telescopic rod one; 64. Swing arm; 65. Rotating motor; 66. Electric telescopic rod two; 67. Clamping screw; 68. Electric telescopic rod three; 7. Detection mechanism; 71. Annular hanging rail; 72. Multi-axis robot arm; 73. Servo motor; 74. Driving gear; 75. Visual detection component; 76. Transmission gear plate; 8. Industrial computer. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] See also Figures 1 to 11In an embodiment of the present invention, a coating quality assessment device includes a mounting frame 1, a plurality of driving sprockets 2 are movably mounted inside the mounting frame 1, and a driving chain 3 is mounted on the outer meshing sleeve of the driving sprocket 2, a driving motor 4 and an industrial computer 8 are fixedly mounted on the front of the driving sprocket 2, a detection mechanism 7 is mounted on the top of the mounting frame 1, a uniformly distributed conveying fixture mechanism 5 is arranged outside the driving chain 3, and the conveying fixture mechanism 5 includes a mounting base plate 51 and two groups of fixture components 52 arranged on the mounting base plate 51, and a product is clamped on the top of the fixture component 52. After the conveying fixture mechanism 5 clamps the product, the driving motor 4 drives the driving chain 3 to rotate continuously and intermittently in the mounting frame 1, and the product is continuously conveyed, and the multi-axis mechanical arm 72 that can move in an annular manner drives the visual inspection component 75 to rotate, and the surface coating of the product is visually inspected, so as to realize continuous inspection of the product and improve the inspection efficiency;

[0040] The fixture component 52 includes a fixture box 521. When the conveying fixture mechanism 5 drives the product to move into place, the detection mechanism 7 visually detects the upper half of the product. By arranging two sets of fixture components 52 in the conveying fixture mechanism 5, the product can be stably supported before and after flipping. A top plate 522 fixedly installed on the top of the fixture box 521, a plurality of support rods 523 passing through the top plate 522, a compression spring 524 movably sleeved on the outside of the support rods 523, a locking seat 525 clamped on the inside of the fixture box 521, and the locking seat 525 The support rods 523 can be moved inside the fixture box 521 to counter the support rods 523. The support rods 523 in the fixture component 52 can be squeezed by the product to form a clamping seat matching the product at the top. The support rods 523 in the fixture component 52 can be compressed according to the shape of the end of the product, and the locking seat 525 is driven to move by 577 to lock the support rods 523. A clamping seat matching the product is formed on the top of the fixture component 52 to ensure the stability of the product after clamping. At the same time, it has a wide range of applications and can realize the clamping of products of different shapes.

[0041] The mounting frame 1 is provided with a flipping and transporting mechanism 6 at a position directly below the detection mechanism 7. When clamping the product, the U-shaped frame 62 is driven to be clamped to the outside of the product through the electric telescopic rod 3 68, and the clamping screw 67 is driven to move and clamp the product through the electric telescopic rod 2 66. The rotating motor 65 drives the product to flip 180 degrees through the swing arm 64 and the clamping screw 67, so that the detection mechanism 7 can visually inspect the lower half of the product. The flipping and transporting mechanism 6 includes a U-shaped frame 62 slidably mounted on the mounting frame 1, an electric telescopic rod 1 63 and an electric telescopic rod 3 68 fixedly connected to the adjusting door frame 61, a U-shaped frame 62 slidably mounted on the adjusting door frame 61, and a U-shaped frame 62 movably mounted on the U-shaped frame 62. Two groups of swing arms 64, an electric telescopic rod 66 fixedly mounted on the swing arms 64, a rotating motor 65 fixedly mounted on the adjusting door frame 61, and a flipping and conveying mechanism 6 can convey the products on the top of one group of clamp components 52 in the conveying clamp mechanism 5 to the top of another group of clamp components 52, and rotate the products 180° during the conveying process. A plurality of clamping screws 67 on the electric telescopic rod 66 can be adaptively adjusted according to the shape of the product to ensure the stability of the clamping screws 67 in clamping the product. The height of the U-shaped frame 62 can be adjusted by the electric telescopic rod 63 according to the height of the product to ensure that the U-shaped frame 62 can flip the product at the middle position in the height direction of the product, thereby improving the positioning accuracy after flipping.

[0042] As a further implementation scheme of the above invention: there are two groups of drive chains 3, and the two groups of drive chains 3 are evenly distributed inside the mounting frame 1, and ear plates cooperating with the conveying clamp mechanism 5 are arranged on the drive chain 3, and the conveying clamp mechanism 5 is installed on the drive chain 3 through the ear plates, so as to ensure that the drive chain 3 can drive the conveying clamp mechanism 5 to move stably, so as to realize stable conveying of the product position, and the output shaft of the drive motor 4 is fixedly connected to the drive sprocket 2 at either end, and the drive motor 4 can drive the drive sprocket 2 and the drive chain 3 to rotate intermittently under the control of the industrial control computer 8, so as to intermittently drive the product to the bottom of the detection mechanism 7 through the conveying clamp mechanism 5, and when the detection mechanism 7 detects the product, the conveying clamp mechanism 5 at the front end can be clamped with the product, so as to realize continuous detection and evaluation of the product and improve work efficiency, and the drive motor 4 is electrically connected to the industrial control computer 8, and the drive motor 4 and the industrial control computer 8 are both prior art and are commercially available.

[0043] As a further implementation scheme of the above invention: the detection mechanism 7 includes an annular hanging rail 71, a multi-axis mechanical arm 72 movably mounted at the bottom of the annular hanging rail 71, a visual detection component 75 is fixedly mounted on one end of the multi-axis mechanical arm 72 away from the annular hanging rail 71, the visual detection component 75 is driven to move by the multi-axis mechanical arm 72, the position of the visual detection component 75 is adjusted, and the visual detection component 75 can detect different positions of the product visually, and a servo motor 73 is fixedly mounted on one end close to the annular hanging rail 71, and a main sleeve is fixedly mounted on the output shaft of the servo motor 73. The driving gear 74 and the bottom of the annular hanging rail 71 are fixedly installed with a transmission gear plate 76, and the transmission gear plate 76 is meshed with the driving gear 74. The driving gear 74 is driven to rotate by the servo motor 73 and cooperates with the transmission gear plate 76, which can drive the multi-axis robot arm 72 to move in a circle at the bottom of the annular hanging rail 71 to achieve a comprehensive inspection of the product side. The multi-axis robot arm 72, the servo motor 73, and the visual inspection component 75 are all electrically connected to the industrial control computer 8. The multi-axis robot arm 72, the servo motor 73 and the visual inspection component 75 are all existing technologies and are commercially available.

[0044] As a further implementation scheme of the above invention: the support rods 523 are arranged in a rectangular array on the top plate 522, and a rubber head is provided at the top of the support rods 523. When clamping the product, the several support rods 523 in the clamp component 52 are compressed and contracted according to the shape of the product end, and are locked by the locking seat 525. A clamping seat adapted to the product is formed on the top of the clamp component 52 to ensure the stability of the product after clamping. At the same time, it has a wide range of applications and can realize clamping of products of different shapes. The compression spring 524 is located at the top of the top plate 522. The compression spring 524 applies elastic force to the support rod 523 to facilitate the resetting of the support rod 523 and to facilitate the support of products of different shapes.

[0045] As a further implementation scheme of the above invention: a card slot cooperating with the locking seat 525 is provided inside the clamp box 521, and the locking seat 525 can be restricted by the card slot to ensure that the locking seat 525 can slide stably inside the clamp box 521. An adjusting screw 527 is threadedly connected to one end of the clamp box 521, and the adjusting screw 527 is movably connected to the locking seat 525. Rotating the adjusting screw 527 can drive the locking seat 525 to move, thereby adjusting the locking state of the support rod 523.

[0046] As a further implementation scheme of the above invention: a locking hole in a waist shape which cooperates with the support rod 523 is provided on the locking seat 525, and a locking ear plate 526 is provided at one end of the locking hole. By providing the locking ear plate 526, the contact area with the support rod 523 is increased, thereby improving the locking effect of the support rod 523. The inner wall of the locking ear plate 526 and the outside of the support rod 523 are provided with matte surfaces that cooperate with each other, thereby improving the friction between the locking ear plate 526 and the support rod 523, thereby further improving the locking effect of the support rod 523, so that the support rod 523 can stably support the product.

[0047] As a further implementation scheme of the above invention: the shape of the adjusting door frame 61 is "L", the horizontal section of the adjusting door frame 61 is slidably installed on the bottom of the mounting frame 1, the electric telescopic rod three 68 is fixedly installed on the bottom of the mounting frame 1, and the output shaft of the electric telescopic rod three 68 is fixedly connected to the adjusting door frame 61, the electric telescopic rod three 68 is electrically connected to the industrial control computer 8, the electric telescopic rod three 68 is the prior art, obtained by commercial purchase, the electric telescopic rod three 68 drives the adjusting door frame 61 and the U-shaped frame 62 to move, so as to facilitate the adjustment of the position of the U-shaped frame 62, thereby ensuring that the U-shaped frame 62 can carry the product, and at the same time avoiding the U-shaped frame 62 from interfering with the action of the detection mechanism 7.

[0048] As a further implementation scheme of the above invention: a guide slide rail cooperating with the U-shaped frame 62 is arranged on the vertical section of the adjusting door frame 61, the output shaft of the electric telescopic rod 63 is fixedly connected to the U-shaped frame 62, the electric telescopic rod 63 is electrically connected to the industrial control computer 8, the electric telescopic rod 63 is a prior art, which is commercially available, and the U-shaped frame 62 is driven to move by the electric telescopic rod 63. The U-shaped frame 62 can be adjusted according to the height dimension of the product, so that the electric telescopic rod 2 66 in the U-shaped frame 62 can clamp the product in the middle position of the product, ensuring that the product can be accurately transported from one group of clamp components 52 to another group of clamp components 52.

[0049] As a further implementation scheme of the above invention: a clearance groove cooperating with the electric telescopic rod 66 is opened on the U-shaped frame 62, a plurality of clamping screws 67 are arranged on the output shaft of the electric telescopic rod 66, the output shaft of the rotating motor 65 is fixedly connected to any swing arm 64, and the swing arm 64 on the output shaft is driven by the rotating motor 65 to flip 180°, so that the product can be accurately transported from one group of clamp components 52 to another group of clamp components 52, so that the lower half of the product is exposed, and a comprehensive inspection of the product is achieved, the rotating motor 65 and the electric telescopic rod 66 are both electrically connected to the industrial control computer 8, and the rotating motor 65 and the electric telescopic rod 66 are both prior art and are commercially available.

[0050] A coating quality evaluation method comprises the following steps:

[0051] S1. Before testing the product, first set a clamping seat matching the product on the two sets of clamp components 52 in the conveying clamp mechanism 5, place the product on the top of the clamp component 52 on the side of the flipping and conveying mechanism 6 at the top of the installation base plate 51, apply downward pressure to the product, and the product applies pressure to the several support rods 523 in the clamp component 52. The several support rods 523 shrink into the clamp box 521 according to the shape of the bottom end of the product, and a clamping seat matching the bottom end of the product is formed at the top of the clamp component 52. Rotate the adjusting screw 527 to drive the locking seat 525 to move, and squeeze the support rod 523 at the corresponding position through the locking ear plate 526 to lock the support rod 523, and complete the setting of the clamping seat on the top of a set of clamp components 52;

[0052] S2, the industrial computer 8 controls the electric telescopic rod 1 63 to drive the U-shaped frame 62 to move to the middle position of the product height direction, so that the U-shaped frame 62 can be carried in the middle position of the product, so that the product can be accurately moved along one set of clamp components 52 to another set of clamp components 52, and the clamping screws 67 on the output shafts of the two sets of electric telescopic rods 2 66 are adjusted according to the shapes of both sides of the product, so that the two sets of electric telescopic rods 2 66 drive the clamping screws 67 to move to stably clamp the product;

[0053] S3, the industrial computer 8 controls the two sets of electric telescopic rods 66 to drive the clamping screw 67 to move and clamp the product, and controls the rotary motor 65 to drive the swing arm 64 and the product to flip 180 degrees, and flip the product along one set of clamp parts 52 to another set of clamp parts 52. After the product flips under the drive of the swing arm 64, it will exert pressure on the support rods 523 in the other set of clamp parts 52. Several support rods 523 shrink according to the shape of the top of the product, and the adjusting screw 527 at the corresponding position is rotated to drive the locking seat 525 to move, and the support rods 523 in the other set of clamp parts 52 are locked, completing the setting of the clamping seat on the top of the other set of clamp parts 52;

[0054] S4, when inspecting the product, the industrial computer 8 controls the driving motor 4 to drive the driving sprocket 2 and the driving chain 3 to rotate intermittently, and drives the conveying fixture mechanism 5 to move intermittently inside the mounting frame 1, and intermittently conveys the product to the bottom of the inspection mechanism 7, and pre-clamps the product on the top of the fixture component 52 close to the side of the flipping and conveying mechanism 6 through the clamping seat in the conveying fixture mechanism 5. When the conveying fixture mechanism 5 is actuated, the industrial computer 8 controls the inspection mechanism 7 to actuate and inspect the stopped product;

[0055] S5. The industrial computer 8 controls the multi-axis robot 72 to drive the visual inspection component 75 to move, and controls the servo motor 73 to drive the active gear 74 to rotate and cooperate with the transmission gear plate 76, driving the multi-axis robot 72 to move in a circle on the circular hanging rail 71 to perform visual inspection on the upper half of the product. The operation trajectory of the inspection mechanism 7 is pre-set by the industrial computer 8. After inspecting the upper half of the product, the industrial computer 8 controls the electric telescopic rod three 68 to drive the adjustment door frame 61 and the U-shaped frame 62 to move toward the side close to the conveying clamp mechanism 5, and clamps the U-shaped frame 62 to the outside of the product. The industrial computer 8 then controls the electric telescopic rod two 66 to clamp the product, and then controls the rotating motor 65 to drive the swing arm 64 to flip, flip the product and transport it to another set of clamp components 52. The industrial computer 8 controls the inspection mechanism 7 again to perform visual inspection on the exposed lower half of the product after flipping. The industrial computer 8 receives the visual inspection data of the visual inspection component 75, and evaluates the quality of the product surface coating based on the inspection data.

[0056] It will be apparent to those skilled in the art that the 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 the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A coating quality assessment device, comprising a mounting frame (1), wherein a plurality of drive sprockets (2) are movably mounted inside the mounting frame (1), and a drive chain (3) is mounted on the outer meshing sleeve of the drive sprocket (2), a drive motor (4) and an industrial control computer (8) are fixedly mounted on the front of the drive sprocket (2), and a detection mechanism (7) is mounted on the top of the mounting frame (1), characterized in that: The driving chain (3) is provided with a uniformly distributed conveying clamp mechanism (5) outside, and the conveying clamp mechanism (5) comprises a mounting base plate (51) and two groups of clamp components (52) arranged on the mounting base plate (51), and the top of the clamp component (52) is clamped with a product; The clamp component (52) comprises a clamp box (521), a top plate (522) fixedly mounted on the top of the clamp box (521), a plurality of support rods (523) passing through the top plate (522), a compression spring (524) movably sleeved on the outside of the support rods (523), and a locking seat (525) clamped in the inside of the clamp box (521); the locking seat (525) can move in the inside of the clamp box (521) and can abut against the support rods (523); the plurality of support rods (523) in the clamp component (52) can be squeezed by the product to form a clamping seat on the top thereof that matches the product; The mounting frame (1) is provided with a flipping and transporting mechanism (6) at a position directly below the detection mechanism (7), and the flipping and transporting mechanism (6) comprises a U-shaped frame (62) slidably mounted on the mounting frame (1), an electric telescopic rod 1 (63) and an electric telescopic rod 3 (68) fixedly connected to the adjusting door frame (61), a U-shaped frame (62) slidably mounted on the adjusting door frame (61), two groups of swing arms (64) movably mounted on the U-shaped frame (62), an electric telescopic rod 2 (66) fixedly mounted on the swing arms (64), and a rotating motor (65) fixedly mounted on the adjusting door frame (61). The flipping and transporting mechanism (6) can transport products from the top of one group of clamp components (52) in the conveying clamp mechanism (5) to the top of another group of clamp components (52), and rotate the products by 180 degrees during the transport process.

2. A coating quality assessment device according to claim 1, characterized in that: The number of the drive chains (3) is two groups, and the two groups of drive chains (3) are evenly distributed inside the mounting frame (1). The drive chains (3) are provided with ear plates that cooperate with the conveying clamp mechanism (5). The output shaft of the drive motor (4) is fixedly connected to the drive sprocket (2) at either end, and the drive motor (4) is electrically connected to the industrial control computer (8).

3. A coating quality assessment device according to claim 1, characterized in that: The detection mechanism (7) comprises an annular hanging rail (71), a multi-axis mechanical arm (72) movably mounted on the bottom of the annular hanging rail (71), a visual detection component (75) being fixedly mounted on one end of the multi-axis mechanical arm (72) away from the annular hanging rail (71), and a servo motor (73) being fixedly mounted on one end close to the annular hanging rail (71), a driving gear (74) being fixedly sleeved on the output shaft of the servo motor (73), a transmission gear disc (76) being fixedly mounted on the bottom of the annular hanging rail (71), and the transmission gear disc (76) and the driving gear (74) being meshed with each other, and the multi-axis mechanical arm (72), the servo motor (73), and the visual detection component (75) are all electrically connected to an industrial control computer (8).

4. A coating quality assessment device according to claim 1, characterized in that: The support rods (523) are arranged in a rectangular array on the top plate (522), and a rubber head is provided at the top end of the support rods (523). The compression spring (524) is located at the top of the top plate (522).

5. A coating quality assessment device according to claim 1, characterized in that: A slot cooperating with the locking seat (525) is provided inside the clamp box (521); an adjusting screw (527) is threadedly connected to one end of the clamp box (521), and the adjusting screw (527) is movably connected to the locking seat (525).

6. A coating quality assessment device according to claim 1, characterized in that: The locking seat (525) is provided with a waist-shaped locking hole that matches the support rod (523); a locking ear plate (526) is provided at one end of the locking hole; and the inner wall of the locking ear plate (526) and the outer surface of the support rod (523) are provided with matte surfaces that match each other.

7. A coating quality assessment device according to claim 1, characterized in that: The adjusting door frame (61) is in the shape of an "L", the horizontal section of the adjusting door frame (61) is slidably mounted on the bottom of the mounting frame (1), the electric telescopic rod three (68) is fixedly mounted on the bottom of the mounting frame (1), and the output shaft of the electric telescopic rod three (68) is fixedly connected to the adjusting door frame (61), and the electric telescopic rod three (68) is electrically connected to the industrial control computer (8).

8. A coating quality assessment device according to claim 7, characterized in that: A guide rail cooperating with the U-shaped frame (62) is arranged on the vertical section of the adjusting door frame (61); the output shaft of the electric telescopic rod 1 (63) is fixedly connected to the U-shaped frame (62); and the electric telescopic rod 1 (63) is electrically connected to the industrial control computer (8).

9. A coating quality assessment device according to claim 1, characterized in that: The U-shaped frame (62) is provided with a clearance groove cooperating with the second electric telescopic rod (66), the output shaft of the second electric telescopic rod (66) is provided with a plurality of clamping screws (67), the output shaft of the rotating motor (65) is fixedly connected to any swing arm (64), and the rotating motor (65) and the second electric telescopic rod (66) are both electrically connected to the industrial control computer (8).

10. The evaluation method of a coating quality evaluation device according to any one of claims 1 to 9, characterized in that: The steps include: S1. Before testing the product, a clamping seat matching the product is first set on the two sets of clamp components (52) in the conveying clamp mechanism (5), and the product is placed on the top of the clamp component (52) on the top of the installation base plate (51) close to the flipping and conveying mechanism (6). A downward pressure is applied to the product, and the product applies pressure to a plurality of support rods (523) in the clamp component (52). The plurality of support rods (523) shrink into the clamp box (521) according to the shape of the bottom end of the product, and a clamping seat matching the bottom end of the product is formed at the top of the clamp component (52). The adjusting screw (527) is rotated to drive the locking seat (525) to move, and the support rod (523) at the corresponding position is squeezed by the locking ear plate (526), ​​so that the support rod (523) is locked, and the setting of the clamping seat at the top of a set of clamp components (52) is completed; S2. The industrial control computer (8) controls the electric telescopic rod 1 (63) to drive the U-shaped frame (62) to move to the middle position of the product in the height direction, so that the U-shaped frame (62) can be transported in the middle position of the product, so that the product can be accurately moved along one set of clamp components (52) to another set of clamp components (52), and the clamping screws (67) on the output shafts of the two sets of electric telescopic rods 2 (66) are adjusted according to the shapes of both sides of the product, so that the two sets of electric telescopic rods 2 (66) drive the clamping screws (67) to move to stably clamp the product; S3, the industrial control computer (8) controls the two sets of electric telescopic rods (66) to drive the clamping screw (67) to move and clamp the product, and controls the rotary motor (65) to drive the swing arm (64) and the product to flip 180 degrees, and flip the product along one set of clamp components (52) to another set of clamp components (52). After the product flips under the drive of the swing arm (64), it will exert pressure on the support rods (523) in the other set of clamp components (52). Several support rods (523) shrink according to the shape of the top of the product, and the adjusting screw (527) at the corresponding position is rotated to drive the locking seat (525) to move, and the support rods (523) in the other set of clamp components (52) are locked, thereby completing the setting of the clamping seat on the top of the other set of clamp components (52); S4, when inspecting the product, the industrial control computer (8) controls the driving motor (4) to drive the driving sprocket (2) and the driving chain (3) to rotate intermittently, and drives the conveying fixture mechanism (5) to move intermittently inside the mounting frame (1), and intermittently conveys the product to the bottom of the inspection mechanism (7). The product is pre-clamped on the top of the fixture component (52) close to the side of the flipping and conveying mechanism (6) by the clamping seat in the conveying fixture mechanism (5). When the conveying fixture mechanism (5) is activated, the industrial control computer (8) controls the inspection mechanism (7) to activate and inspect the stopped product; S5. The industrial control computer (8) controls the multi-axis mechanical arm (72) to drive the visual inspection component (75) to move, and controls the servo motor (73) to drive the driving gear (74) to rotate and cooperate with the transmission gear plate (76), driving the multi-axis mechanical arm (72) to move in a circular manner on the circular hanging rail (71) to perform visual inspection on the upper part of the product. The running track of the inspection mechanism (7) is pre-set by the industrial control computer (8). After the upper part of the product is inspected, the industrial control computer (8) controls the electric telescopic rod three (68) to drive the adjustment door frame (61) and the U-shaped frame (62) to move closer to the output. The delivery fixture mechanism (5) moves to one side to clamp the U-shaped frame (62) to the outside of the product. The industrial control computer (8) then controls the second electric telescopic rod (66) to clamp the product, and then controls the rotary motor (65) to drive the swing arm (64) to flip, flip the product and transport it to another set of fixture components (52). The industrial control computer (8) controls the inspection mechanism (7) again to perform visual inspection on the exposed lower half of the product after flipping. The industrial control computer (8) receives the visual inspection data of the visual inspection component (75) and evaluates the quality of the product surface coating based on the inspection data.

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