Thermal spraying defect identification device based on visual identification technology

Abstract

The utility model relates to the technical field of thermal spraying devices, and discloses a thermal spraying defect identification device based on a visual identification technology, which comprises a bottom plate, a support frame is arranged above the bottom plate, and an identification mechanism is arranged in the support frame; the recognition mechanism comprises a screw rod, the screw rod is rotatably connected to the interior of the supporting frame, a servo motor is arranged above the supporting frame, the power output end of the servo motor penetrates through the supporting frame and is fixedly connected with the top end of the screw rod, the outer surface of the screw rod is in threaded connection with a stabilizing seat, the stabilizing seat is slidably connected to the interior of the supporting frame, and a spray head is clamped in the stabilizing seat. According to the device for identifying the thermal spraying defects based on the visual identification technology, the thermal spraying device can be matched with the identification mechanism to inspect the thermal spraying defects of a workpiece in a visual identification mode, so that the device has certain self-inspection and defect self-repairing functions, manual inspection of workers is not needed, the thermal spraying defects of the workpiece can be found and repaired in time, and the working efficiency is improved. And the thermal spraying quality of the workpiece is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal spraying devices, in particular to a device for identifying thermal spraying defects based on visual recognition technology. Background Art

[0002] Thermal spraying is a device that deposits fine and dispersed metal or non-metallic coating materials in a molten or semi-molten state onto the surface of a workpiece substrate. It includes arc spraying, plasma spraying and flame spraying, and is often used to enhance the external surface properties of various metal workpieces.

[0003] The utility model with the existing authorization announcement number CN213803949U discloses a thermal spraying device, including a base, two material boxes are arranged on the base, both material boxes are connected to output pumps, both output pumps are connected to nozzles through connecting pipes, and also includes two telescopic rods extending in the vertical direction.

[0004] By adopting the above technical scheme, the arrangement of the telescopic rod, the annular groove and the flip assembly not only changes the angle between the two nozzles in the horizontal plane, but also changes the height and the spray angle of the nozzles. Therefore, the present application can be applied to more working conditions. However, in the above technical scheme, the thermal spraying device does not have a self-checking function when performing thermal spraying process on the workpiece, so that the spraying defects caused by the nozzle and other reasons cannot be discovered in time, and manual inspection is required by the staff, which is not only time-consuming and labor-intensive, but also affects the quality of thermal spraying of the workpiece.

[0005] Therefore, those skilled in the art provide a device for identifying thermal spraying defects based on visual recognition technology to solve the problems raised in the above background technology. Utility Model Content

[0006] The purpose of the utility model is to provide a device for identifying thermal spraying defects based on visual recognition technology to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A device for identifying thermal spray defects based on visual recognition technology, comprising a base plate, a support frame is arranged above the base plate, and an identification mechanism is arranged inside the support frame;

[0009] The identification mechanism includes a screw, which is rotatably connected to the inside of a support frame, a servo motor is arranged above the support frame, an output end of the servo motor power penetrates the support frame and is fixedly connected to the top of the screw, a stabilizing seat is threadedly connected to the outer surface of the screw, the stabilizing seat is slidably connected to the inside of the support frame, a nozzle is clamped inside the stabilizing seat, a connecting plate is fixedly connected to the front of the stabilizing seat, a visual recognition camera is fixedly connected to the upper surface of the connecting plate, and the visual recognition camera is electrically connected to the servo motor through a wire;

[0010] A fixed cylinder is provided inside the base plate, and two electric push rods are fixedly connected to the inner wall of the fixed cylinder, and an arc clamp is fixedly connected to the telescopic end of each electric push rod, and a large gear is fixedly connected to the outer surface of the fixed cylinder. A rotating motor is fixedly connected to the bottom surface of the base plate, and a small gear is fixedly connected to the output end of the rotating motor power, and the small gear is threadedly connected to the large gear.

[0011] As a further solution of the utility model: four supporting legs are fixedly connected to the bottom surface of the base plate, and a fixing through hole is formed on the bottom surface of each supporting leg.

[0012] As a further solution of the utility model: an adjustment plate is fixedly connected to the bottom surface of the support frame, and the adjustment plate is slidably connected to the inside of the base plate. A plurality of positioning holes are opened on the upper surface of the base plate. The internal thread of the adjustment plate is connected to a positioning bolt, and the bottom end of the positioning bolt passes through the adjustment plate and one of the positioning holes in sequence and extends to the bottom of the base plate.

[0013] As a further solution of the utility model: a fixing seat is fixedly connected to the right side surface of the servo motor, and the bottom surface of the fixing seat is fixedly connected to the upper surface of the support frame.

[0014] As a further solution of the utility model: the upper surface of the base plate is fixedly connected to a material box, the back of the material box is fixedly connected to a delivery pump, the discharge end of the delivery pump is fixedly connected to a discharge hose, and the end of the discharge hose away from the delivery pump is fixedly connected to the feed end of the nozzle.

[0015] As a further solution of the utility model: the outer surface of the fixed cylinder is sleeved with a rotating bearing, and the outer surface of the outer ring of the rotating bearing is fixedly connected to the inner wall of the bottom plate.

[0016] As a further solution of the utility model: the inner wall of each arc-shaped clamp is fixedly connected with an anti-skid sleeve, and the inner wall of each anti-skid sleeve is provided with anti-skid grooves arranged at equal distances.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model is provided with a visual recognition camera in conjunction with a connecting plate. When the servo motor drives the screw to rotate, the threaded connection relationship between the screw and the stabilizing seat is utilized to enable the stabilizing seat to drive the nozzle to move downward to perform thermal spraying on the workpiece. The visual recognition camera located above the nozzle can utilize the color change on the surface of the workpiece after thermal spraying to identify whether there is a thermal spraying defect on the surface of the workpiece by distinguishing the colors. When the visual recognition camera identifies the original color of the workpiece that has not been thermally sprayed, the visual recognition camera can send an electrical signal to the servo motor through a wire to make it rotate in the opposite direction, thereby driving the stabilizing seat and the nozzle to move upward a certain distance again to perform secondary spraying on the defective position above, thereby enabling the thermal spraying device to cooperate with the recognition mechanism through The thermal spraying defects of the workpiece are checked by visual recognition, so that it has certain self-inspection and defect self-repair functions. There is no need for manual inspection by staff, so that the thermal spraying defects of the workpiece can be discovered and repaired in time, thereby ensuring the quality of thermal spraying of the workpiece. The power provided by the rotating motor cooperates with the bottom plate to drive the small gear to rotate, and the meshing relationship between the small gear and the large gear can be used to drive the cylindrical workpiece clamped by the electric push rod and the arc clamp inside the fixed cylinder to rotate, ensuring that the outer surface of the workpiece is fully thermally sprayed and defect inspection is carried out in coordination with the up and down movement of the stable seat and the nozzle, so that every position of the workpiece after thermal spraying can be visually identified and inspected, making the thermal spraying work and visual identification defect detection work more comprehensive. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of a device for identifying thermal spray defects based on visual recognition technology;

[0020] Figure 2 A schematic diagram of a cross-sectional three-dimensional structure of a support frame in a device for identifying thermal spray defects based on visual recognition technology;

[0021] Figure 3 A schematic diagram of a three-dimensional structure of a bottom plate cutaway in a device for identifying thermal spraying defects based on visual recognition technology;

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of a fixed barrel in a device for identifying thermal spraying defects based on visual recognition technology.

[0023] In the figure: 1. bottom plate; 2. support frame; 3. identification mechanism; 301. screw; 302. servo motor; 303. stabilizing seat; 304. nozzle; 305. connecting plate; 306. visual recognition camera; 307. fixing cylinder; 308. electric push rod; 309. arc clamp; 310. large gear; 311. rotating motor; 312. small gear; 4. supporting leg; 5. fixing through hole; 6. adjusting plate; 7. positioning hole; 8. positioning bolt; 9. fixing seat; 10. material box; 11. conveying pump; 12. discharge hose; 13. rotating bearing; 14. anti-skid sleeve; 15. anti-skid groove. DETAILED DESCRIPTION

[0024] See also Figure 1-4 A device for identifying thermal spray defects based on visual recognition technology includes a base plate 1, a support frame 2 is arranged above the base plate 1, an identification mechanism 3 is arranged inside the support frame 2, four support legs 4 are fixedly connected to the bottom surface of the base plate 1, and a fixing through hole 5 is opened on the bottom surface of each support leg 4. The support leg 4 can support and stabilize the position of the device. The fixing through hole 5 can be used with bolts and other fixing parts to reinforce the position of the device, thereby ensuring the stability of the device when in use.

[0025] The identification mechanism 3 includes a screw rod 301, which is rotatably connected to the inside of the support frame 2. The bottom surface of the support frame 2 is fixedly connected to an adjustment plate 6, and the adjustment plate 6 is slidably connected to the inside of the base plate 1. A plurality of positioning holes 7 are provided on the upper surface of the base plate 1. The internal thread of the adjustment plate 6 is connected to a positioning bolt 8. The bottom end of the positioning bolt 8 passes through the adjustment plate 6 and one of the positioning holes 7 in sequence and extends to the bottom of the base plate 1. The front and rear distance of the support frame 2 can be adjusted by sliding the adjustment plate 6 inside the base plate 1 and fixing the adjustment plate 6 with the positioning bolts 8 and the positioning holes 7, thereby increasing the adaptability of the support frame 2.

[0026] A servo motor 302 is arranged above the support frame 2. The output end of the servo motor 302 power passes through the support frame 2 and is fixedly connected to the top of the screw 301. The right side of the servo motor 302 is fixedly connected to a fixing seat 9. The bottom surface of the fixing seat 9 is fixedly connected to the upper surface of the support frame 2. The fixing seat 9 can fix the position of the servo motor 302, so that the servo motor 302 can be firmly fixed on the support frame 2, thereby ensuring the stable operation of the servo motor 302.

[0027] The outer surface of the screw 301 is threadedly connected to a stabilizing seat 303, and the stabilizing seat 303 is slidably connected to the inside of the support frame 2. The inside of the stabilizing seat 303 is clamped with a nozzle 304. The upper surface of the base plate 1 is fixedly connected to a material box 10, and the back of the material box 10 is fixedly connected to a delivery pump 11. The discharge end of the delivery pump 11 is fixedly connected to a discharge hose 12, and the end of the discharge hose 12 away from the delivery pump 11 is fixedly connected to the feed end of the nozzle 304. The thermal spraying material in the material box 10 is sucked out through the delivery pump 11, and is sent to the nozzle 304 through the discharge hose 12 to be sprayed out, which can ensure the normal progress of the thermal spraying work.

[0028] A connecting plate 305 is fixedly connected to the front of the stabilizing seat 303, and a visual recognition camera 306 is fixedly connected to the upper surface of the connecting plate 305. The visual recognition camera 306 is electrically connected to the servo motor 302 through a wire. A fixed cylinder 307 is arranged inside the base plate 1, and a rotating bearing 13 is sleeved on the outer surface of the fixed cylinder 307. The outer surface of the outer ring of the rotating bearing 13 is fixedly connected to the inner wall of the base plate 1. The rotating bearing 13 can limit the position of the fixed cylinder 307 inside the base plate 1 without affecting the smooth rotation of the fixed cylinder 307, thereby increasing the stability of the fixed cylinder 307 during use.

[0029] Two electric push rods 308 are fixedly connected to the inner wall of the fixed cylinder 307, and the telescopic end of each electric push rod 308 is fixedly connected to an arc clamp 309. The outer surface of the fixed cylinder 307 is fixedly connected to a large gear 310, and the bottom surface of the base plate 1 is fixedly connected to a rotating motor 311. The output end of the power of the rotating motor 311 is fixedly connected to a small gear 312, and the small gear 312 is threadedly connected to the large gear 310. The inner wall of each arc clamp 309 is fixedly connected to an anti-skid sleeve 14, and the inner wall of each anti-skid sleeve 14 is provided with anti-skid grooves 15 arranged at equal distances. The anti-skid sleeve 14 cooperates with the anti-skid grooves 15 to increase the friction of the arc clamp 309, so that excessive relative sliding is not likely to occur between the arc clamp 309 and the cylindrical workpiece, thereby improving the stability of the workpiece fixation.

[0030] The working principle of the utility model is as follows: when in use, first connect the visual recognition camera 306, the electric push rod 308, the servo motor 302, the rotating motor 311 and the conveying pump 11 to the power supply. When it is necessary to perform thermal spraying on the outer surface of the cylindrical workpiece, first use the power provided by the electric push rod 308 to cooperate with the fixed cylinder 307 to drive the two arc clamps 309 to clamp the workpiece close to each other. At this time, the servo motor 302 cooperates with the support frame 2 to drive the screw 301 to rotate, and utilizes the threaded connection relationship between the screw 301 and the stable seat 303 to make the stable seat 303 drive the nozzle 304 to move downward, and cooperate with the conveying pump 11 and the discharge hose 12 to perform thermal spraying on the workpiece. At this time, the visual recognition camera 306 located above the nozzle 304 cooperates with the shading of the connecting plate 305 to utilize the color change of the workpiece surface after thermal spraying to identify whether there is a thermal spraying defect on the workpiece surface by distinguishing colors. When the visual recognition camera 306 recognizes the original color of the workpiece that has not been thermally sprayed, the visual recognition camera The camera 306 can send an electrical signal to the servo motor 302 through a wire to make it rotate in the opposite direction, driving the stabilizing seat 303 and the nozzle 304 to move upward a certain distance again to perform secondary spraying on the defective position above, so that the thermal spraying device can cooperate with the identification mechanism 3 to check the thermal spraying defects of the workpiece by visual recognition, so that it has certain self-inspection and defect self-repair functions, without the need for manual inspection by staff, so that the thermal spraying defects of the workpiece can be discovered and repaired in time, ensuring the quality of thermal spraying of the workpiece, and the power provided by the rotating motor 311 cooperates with the base plate 1 to drive the small gear 312 to rotate, and utilizes the meshing relationship between the small gear 312 and the large gear 310 to cooperate with the rotating bearing 13, so as to drive the cylindrical workpiece clamped by the electric push rod 308 and the arc clamp 309 inside the fixed cylinder 307 to rotate, ensuring that the outer surface of the workpiece cooperates with the up and down movement of the stabilizing seat 303 and the nozzle 304 to be fully thermally sprayed and defect inspection work, making the thermal spraying work and visual recognition defect detection work more comprehensive.

[0031] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for identifying thermal spraying defects based on visual recognition technology, comprising a base plate (1), characterized in that: A support frame (2) is arranged above the bottom plate (1), and an identification mechanism (3) is arranged inside the support frame (2); The identification mechanism (3) comprises a screw (301), wherein the screw (301) is rotatably connected to the inside of the support frame (2), a servo motor (302) is arranged above the support frame (2), an output end of the power of the servo motor (302) passes through the support frame (2) and is fixedly connected to the top of the screw (301), a stabilizing seat (303) is threadedly connected to the outer surface of the screw (301), the stabilizing seat (303) is slidably connected to the inside of the support frame (2), a nozzle (304) is clamped inside the stabilizing seat (303), a connecting plate (305) is fixedly connected to the front of the stabilizing seat (303), a visual recognition camera (306) is fixedly connected to the upper surface of the connecting plate (305), and the visual recognition camera (306) is electrically connected to the servo motor (302) via a wire; A fixed cylinder (307) is arranged inside the base plate (1), and two electric push rods (308) are fixedly connected to the inner wall of the fixed cylinder (307), and the telescopic end of each electric push rod (308) is fixedly connected to an arc clamp (309), and the outer surface of the fixed cylinder (307) is fixedly connected to a large gear (310), and the bottom surface of the base plate (1) is fixedly connected to a rotating motor (311), and the output end of the power of the rotating motor (311) is fixedly connected to a small gear (312), and the small gear (312) is threadedly connected to the large gear (310).

2. The device for identifying thermal spraying defects based on visual recognition technology according to claim 1, characterized in that: Four supporting legs (4) are fixedly connected to the bottom surface of the base plate (1), and a fixing through hole (5) is provided on the bottom surface of each supporting leg (4).

3. The device for identifying thermal spraying defects based on visual recognition technology according to claim 1, characterized in that: The bottom surface of the support frame (2) is fixedly connected to an adjustment plate (6), and the adjustment plate (6) is slidably connected to the inside of the base plate (1). The upper surface of the base plate (1) is provided with a plurality of positioning holes (7). The internal thread of the adjustment plate (6) is connected to a positioning bolt (8), and the bottom end of the positioning bolt (8) passes through the adjustment plate (6) and one of the positioning holes (7) in sequence and extends to the bottom of the base plate (1).

4. The device for identifying thermal spraying defects based on visual recognition technology according to claim 1, characterized in that: A fixing seat (9) is fixedly connected to the right side surface of the servo motor (302), and the bottom surface of the fixing seat (9) is fixedly connected to the upper surface of the support frame (2).

5. The device for identifying thermal spraying defects based on visual recognition technology according to claim 1, characterized in that: The upper surface of the bottom plate (1) is fixedly connected to a material box (10), the back side of the material box (10) is fixedly connected to a delivery pump (11), the discharge end of the delivery pump (11) is fixedly connected to a discharge hose (12), and the end of the discharge hose (12) away from the delivery pump (11) is fixedly connected to the feed end of the nozzle (304).

6. The device for identifying thermal spraying defects based on visual recognition technology according to claim 1, characterized in that: The outer surface of the fixed cylinder (307) is sleeved with a rotating bearing (13), and the outer surface of the outer ring of the rotating bearing (13) is fixedly connected to the inner wall of the bottom plate (1).

7. The device for identifying thermal spraying defects based on visual recognition technology according to claim 1, characterized in that: The inner wall of each arc-shaped clamp (309) is fixedly connected to an anti-slip sleeve (14), and the inner wall of each anti-slip sleeve (14) is provided with anti-slip grooves (15) arranged at equal distances.

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