Laser cladding monitoring system based on machine vision

Abstract

The invention provides a laser cladding monitoring system based on machine vision. The laser cladding monitoring system comprises a monitoring box, an assembling assembly and a pulling assembly. The assembly table is mounted in the monitoring box and is in front-back sliding connection with the monitoring box; a camera is arranged at the top in the assembly table, and a glass door is arranged at the opening end of the monitoring box; the assembling assembly comprises a clamping plate, a sliding block, a threaded cylinder, a screw rod, a gear and a rack. The two clamping plates are symmetrically arranged in the assembling table and located on the two sides of the camera. Sliding blocks are arranged at the bottom ends of the clamping plates, sliding ways are arranged at the bottom in the assembling table, and the sliding blocks can slide left and right in the sliding ways. A threaded cylinder is arranged on the back of the clamping plate and is in threaded connection with one end of a screw, the other end of the screw is connected with a gear on the inner wall of the assembly table, the gear is meshed with one end of a rack, and the other end of the rack penetrates through the assembly table and is connected with the inner wall of the monitoring box; the pulling assembly is installed on the monitoring box and connected with the assembling table and the glass door. The device is very convenient to disassemble and assemble, and later maintenance is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of machine vision monitoring devices, and more particularly, to a laser cladding monitoring system based on machine vision. Background Art

[0002] Machine vision is a technology that enables a computer to simulate the human visual system to understand and interpret images or videos by using devices such as computers and cameras. By using a camera or other sensors to capture images or videos of target objects or structures, and then using computer vision algorithms and techniques for analysis and processing, it is possible to monitor and measure the displacement of objects or structures, which is very useful in the field of laser cladding and can perform high-precision monitoring of the molten pool during cladding. Machine vision can help monitor displacement changes in real time and provide timely warnings and feedback to ensure safety and stability.

[0003] Due to the high temperature and splash working environment of laser cladding, the vision camera must be protected. In order to protect the camera, the camera is often installed inside a protective box and visual capture and observation are carried out through the glass of the box door. Although this provides good protection, assembling inside the protective box makes installation and disassembly inconvenient, and being located inside makes inspection and maintenance inconvenient, which is not conducive to later replacement and maintenance. At the same time, screw-fixed installation is also relatively troublesome. Therefore, there is a particular need to design a laser cladding monitoring system based on machine vision and its control method to solve the above technical problems. Summary of the Invention

[0004] In view of the above technical problems, the present invention provides a laser cladding monitoring system based on machine vision, which is very convenient for disassembly and assembly and is convenient for later maintenance and repair.

[0005] Note that the recitation of these objectives does not preclude the existence of other objectives. One aspect of the present invention does not need to achieve all of the above objectives. Objectives other than the above can be extracted from the descriptions in the specification, drawings, and claims.

[0006] The present invention achieves the above technical objectives through the following technical means.

[0007] A laser cladding monitoring system based on machine vision includes a monitoring box, an assembly component, and a pulling component;

[0008] The assembly table is installed inside the monitoring box, and both sides of the assembly table are slidably connected to the front and back of the monitoring box; one side of the assembly table is open, and a camera is placed on the inner top. The open end of the monitoring box is provided with a glass door;

[0009] The assembly component includes clamping plates, sliders, threaded cylinders, screw rods, gears and racks; the two clamping plates are symmetrically arranged inside the assembly table and on both sides of the camera; the bottom end of the clamping plate is provided with a slider, and a slideway is provided at the bottom inside the assembly table, and the slider can slide left and right in the slideway; a threaded cylinder is provided on the back of the clamping plate, the threaded cylinder is threadedly connected to one end of the screw rod, the other end of the screw rod is connected to the gear on the inner wall of the assembly table, the gear is engaged with one end of the rack, and the other end of the rack passes through the assembly table and is connected to the inner wall of the monitoring box;

[0010] The pulling component is installed on the monitoring box, and the pulling component is respectively connected to the assembly table and the glass door, and is used to pull the assembly table into the monitoring box, drive the gear to move on the rack, thereby driving the slider to slide left and right in the slideway, clamp the camera, and at the same time control the closing of the glass door.

[0011] In the above solution, slide rails are provided on both sides of the inner wall of the monitoring box, slide bars slide inside the slide rails, and the slide bars are arranged on both sides of the assembly table, so that the assembly table is slidably connected to the monitoring box; the slide rails, the slide bars and the rack are arranged in parallel.

[0012] In the above solution, a door shaft is rotatably installed at the upper end of the opening of the monitoring box, and one end of the glass door is connected to the door shaft.

[0013] In the above solution, a number of positioning rods are provided on the clamping surface of the clamping plate, and the positioning rods can be inserted into the corresponding sockets at both ends of the camera.

[0014] In the above solution, the pulling component includes a pulling belt, a pulley, a reel and a servo motor;

[0015] One end of the pulling belt is connected to the assembly table, the other end of the pulling belt passes through the pulley arranged inside the monitoring box, and vertically passes through the monitoring box and is wound around the reel, a servo motor is connected to one side of the reel, the servo motor is installed at the top of the monitoring box, and the servo motor is connected to the door shaft through a synchronization component.

[0016] Further, the synchronization component includes a rotating head and a synchronous belt;

[0017] Rotating heads docked with the servo motor and the door shaft rotating shaft, and a synchronous belt is connected between the rotating heads.

[0018] In the above solution, a return spring is connected between the assembly table and the inner wall of the monitoring box, and is used to keep the assembly table in a reset state after being pulled by the pulling component.

[0019] In the above solution, sliding baffles are respectively provided on both sides of the top end of the assembly table, concave openings are respectively provided on the side walls of the monitoring box, the sliding baffles can slide in the concave openings on the side walls of the monitoring box, a maintenance opening is provided at the concave opening of the monitoring box, and the sliding baffles slide in the concave openings to block the maintenance opening when the assembly table is in the storage state.

[0020] In the above solution, an opening is provided on the sliding baffle, and a heat dissipation net is provided at the opening.

[0021] In the above solution, a stop block is provided on the inner side of the slide rail; the stop block is used to limit the position of the slide bar, and when the stop block contacts the slide bar, the assembly table is in the storage position.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] 1. The laser cladding monitoring system based on machine vision of the present invention is very convenient to disassemble and assemble, which is convenient for later maintenance.

[0024] 2. When the overall installation of the laser cladding monitoring system based on machine vision of the present invention is carried out, the camera is placed on the assembly table. By pulling the component, the assembly table moves into the monitoring box, and the relative rack also moves into the assembly table. Through the meshing connection, the gear rotates, and the gear drives the screw to rotate. Under the limiting sliding action of the slider, the threaded cylinder drives the clamping plate to displace, and the two approach each other. When the assembly table enters the fixed position inside the monitoring box, the clamping plate just clamps the camera. In this way, the disassembly and assembly are very convenient. When maintaining, the assembly table is moved out and the gear rotates in the reverse direction, then the clamping is automatically released, which is convenient for later maintenance work.

[0025] 3. When the present invention is being stored, the servo motor is started to make the reel rotate and wind up. The pulling belt pulls the assembly table through the pulley, so that it moves into the monitoring box through the cooperation of the slide rail and the slide bar, thus cooperating with the clamping and fixing of the assembly component. When maintenance is required, the reel is unwound, and the assembly table can be slowly moved out of the monitoring box through the compressed return spring, thus cooperating with the release of the clamping of the assembly component, and at the same time realizing automatic storage, which is very convenient.

[0026] 4. Through the design of the rotating head and the synchronous belt of the present invention, the reel and the door shaft rotate synchronously. Then, when the assembly table is stored, the glass door will automatically close, and when the assembly table is moved out, the glass door will automatically open. There is no need to manually lock and unlock the glass door, which further improves the convenience of maintenance.

[0027] 5. When the present invention is being repaired, the sliding baffle opens the repair opening as the assembly table is moved out, which is convenient for maintaining some internal devices. The sliding baffle blocks and protects the repair opening in the daily state to prevent dust from entering. Finally, the heat dissipation net can play a role in heat dissipation and dust prevention, reducing equipment wear.

[0028] Note that the recording of these effects does not prevent the existence of other effects. One embodiment of the present invention does not necessarily have all the above effects. Effects other than the above can be obviously seen and extracted from the descriptions in the specification, drawings, claims, etc. Description of the Drawings

[0029] Figure 1 Schematic structural diagram of a laser cladding monitoring system based on machine vision according to an embodiment of the present invention;

[0030] Figure 2 Schematic internal structure diagram of the monitoring box according to an embodiment of the present invention;

[0031] Figure 3 Schematic structural diagram of the assembly table according to an embodiment of the present invention;

[0032] Figure 4 Cross-sectional view of the assembly table according to an embodiment of the present invention;

[0033] Figure 5 Schematic structural diagram of the assembly component according to an embodiment of the present invention;

[0034] Figure 6 Schematic structural diagram of the pulling component according to an embodiment of the present invention;

[0035] Figure 7 is Figure 2 Enlarged view of part A in

[0036] In the figure: 1, monitoring box; 11, slide rail; 111, stop block; 12, slide bar; 13, assembly table; 14, door hinge; 15, glass door; 16, return spring; 17, maintenance opening; 18, sliding baffle; 181, heat dissipation net; 2, assembly component; 21, clamping plate; 22, slider; 23, threaded cylinder; 24, screw; 25, gear; 26, rack; 3, camera; 4, pulling component; 41, pulling belt; 42, pulley; 43, reel; 44, servo motor; 5, synchronization component; 51, rotating head; 52, synchronous belt. Specific embodiments

[0037] The following describes in detail the embodiments of the present invention. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0038] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "front", "rear", "left", "right", "upper", "lower", "axial", "radial", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0039] In the present invention, unless otherwise clearly specified and limited, the terms "mounted", "connected", "connected to", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Figures 1-7 Shown is a preferred embodiment of the machine vision-based laser cladding monitoring system. The machine vision-based laser cladding monitoring system includes a monitoring box 1, an assembly component 2, and a pulling component 4;

[0041] The assembly table 13 is installed inside the monitoring box 1, and both sides of the assembly table 13 are slidably connected to the front and back of the monitoring box 1; one side of the assembly table 13 is open, and a camera 3 is placed on the inner top. A glass door 15 is provided at the open end of the monitoring box 1; the assembly component 2 includes clamping plates 21, sliders 22, threaded cylinders 23, screw rods 24, gears 25, and racks 26; two clamping plates 21 are symmetrically arranged inside the assembly table 13 and on both sides of the camera 3; a slider 22 is provided at the bottom end of the clamping plate 21, and a slideway is provided at the inner bottom of the assembly table 13. The slider 22 can slide left and right in the slideway; a threaded cylinder 23 is provided on the back of the clamping plate 21. The threaded cylinder 23 is threadedly connected to one end of the screw rod 24, and the other end of the screw rod 24 is connected to the gear 25 on the inner wall of the assembly table 13. The gear 25 meshes with one end of the rack 26, and the other end of the rack 26 passes through the assembly table 13 and is connected to the inner wall of the monitoring box 1; the pulling component 4 is installed on the monitoring box 1. The pulling component 4 is respectively connected to the assembly table 13 and the glass door 15, and is used to pull the assembly table 13 to move into the monitoring box 1, drive the gear 25 to move on the rack 26, thereby driving the slider 22 to slide left and right in the slideway, clamping the camera 3, and simultaneously controlling the closing of the glass door 15.

[0042] When the overall installation of the laser cladding monitoring system for machine vision is carried out, the camera 3 is placed on the assembly table 13. The pulling component 4 is used to make the assembly table 13 move into the monitoring box 1. At this time, the rack 26 also moves into the assembly table 13, and the gear 25 is driven to rotate through the meshing connection. The gear 25 drives the screw rod 24 to rotate. Under the limiting sliding action of the slider 22, the threaded cylinder 23 drives the clamping plate 21 to displace, and the two approach each other. When the assembly table 13 enters the fixed position inside the monitoring box 1, the clamping plate 21 just clamps the camera 3. In this way, the disassembly and assembly are very convenient. When the assembly table 13 is moved out during maintenance, the gear 25 rotates in the reverse direction and automatically releases the clamping, thus facilitating the later maintenance work.

[0043] In a specific embodiment of the present invention, sliding rails 11 are provided on both sides of the inner wall of the monitoring box 1. A slide bar 12 slides inside the sliding rails 11. The slide bar 12 is provided on both sides of the assembly table 13, so that the assembly table 13 is slidably connected to the monitoring box 1; the sliding rails 11, the slide bar 12, and the rack 26 are arranged in parallel.

[0044] The upper end of the opening of the monitoring box 1 is rotatably installed with a door shaft 14, and one end of the glass door 15 is connected to the door shaft 14.

[0045] A plurality of positioning rods 211 are provided on the clamping surface of the clamping plate 21, and the positioning rods 211 can be inserted into the corresponding sockets at both ends of the camera 3. Through the above structure, the four positioning rods 211 are inserted into the corresponding sockets at both ends of the camera 3 after the clamping plate 21 clamps, so that the camera 3 is more stable and not easy to shake.

[0046] The pulling assembly 4 includes a pulling belt 41, a pulley 42, a reel 43, and a servo motor 44; one end of the pulling belt 41 is connected to the assembly table 13, the other end of the pulling belt 41 passes through the pulley 42 arranged inside the monitoring box 1, and vertically passes upward through the monitoring box 1 and is wound around the reel 43. A servo motor 44 is connected to one side of the reel 43, the servo motor 44 is installed at the top end of the monitoring box 1, and the servo motor 44 is connected to the door shaft 14 through a synchronization assembly 5.

[0047] The synchronization assembly 5 includes a rotating head 51 and a timing belt 52; the rotating heads 51 are docked with the rotating shafts of the servo motor 44 and the door shaft 14, and a timing belt 52 is connected between the rotating heads 51.

[0048] A return spring 16 is connected between the assembly table 13 and the inner wall of the monitoring box 1, which is used to keep the assembly table 13 in a reset state after being pulled by the pulling assembly 4.

[0049] When storing, start the servo motor 44 to make the reel 43 rotate and wind up. The pulling belt 41 pulls the assembly table 13 through the pulley 42, so that it can move into the monitoring box 1 through the cooperation of the slide rail 11 and the slide bar 12, thus cooperating with the clamping and fixing of the assembly component 2. When maintenance is required, let the reel 43 unwind. The compressed return spring 16 can make the assembly table 13 slowly move out of the monitoring box 1, thus cooperating with the release of the clamping of the assembly component 2. At the same time, automatic storage is realized, which is very convenient. Moreover, through the design of the rotating head 51 and the timing belt 52, the reel 43 and the door shaft 14 rotate synchronously. Then when the assembly table 13 is stored, the glass door 15 will automatically close, and when the assembly table 13 moves out, the glass door 15 will automatically open. There is no need for manual locking and unlocking of the glass door 15, which further improves the convenience of maintenance.

[0050] In a specific embodiment of the present invention, sliding baffles 18 are respectively arranged on both sides of the top end of the assembly table 13, concave openings are respectively arranged on the side walls of the monitoring box 1, the sliding baffles 18 can slide in the concave openings on the side walls of the monitoring box 1, a maintenance opening 17 is arranged at the concave opening of the monitoring box 1, and the sliding baffles 18 slide in the concave openings to block the maintenance opening 17 when the assembly table 13 is in a stored state. An opening is arranged on the sliding baffle 18, and a heat dissipation net 181 is arranged at the opening.

[0051] Modules such as image calculation and processing, signal sending and alarming can also be installed inside the monitoring box 1. At this time, when maintaining, the sliding baffle 18 opens the maintenance opening 17 as the assembly table 13 moves out, which is convenient for maintaining some internal devices. The sliding baffle 18 blocks and protects the maintenance opening 17 in the daily state to avoid dust entering. Finally, the heat dissipation net 181 can play a role in heat dissipation and dust prevention, reducing equipment wear.

[0052] In a specific embodiment of the present invention, a stop block 111 is provided inside the slide rail 11; the stop block 111 is used to limit the position of the slide bar 12, and when the stop block 111 contacts the slide bar 12, the assembly table 13 is in the storage position.

[0053] With the above structure, when the assembly table 13 moves to the innermost end, the stop block 111 contacts the slide bar 12. At this time, the reel 43 is positioned by the motor, so that the assembly table 13 cannot move back and forth, which can effectively improve the storage stability of the assembly table 13.

[0054] The usage method of the laser cladding monitoring system based on machine vision includes the following steps:

[0055] S1. Storage processing

[0056] When the overall installation of the laser cladding monitoring system based on machine vision is carried out, the camera 3 is placed on the assembly table 13. The servo motor 44 is started to make the reel 43 rotate and wind up. The pulling belt 41 pulls the assembly table 13 through the pulley 42, so that it moves into the monitoring box 1 through the cooperation of the slide rail 11 and the slide bar 12. At the same time, when the assembly table 13 is stored, the glass door 15 will automatically close through the rotating head 51 and the synchronous belt 52 to protect the internal equipment;

[0057] S2. Assembly processing

[0058] When storing, the rack 26 also moves into the assembly table 13, and drives the gear 25 to rotate through meshing connection. The gear 25 drives the screw rod 24 to rotate. Under the limiting sliding action of the slider 22, the threaded cylinder 23 drives the clamping plate 21 to displace, and the two approach each other. When the assembly table 13 enters the fixed position inside the monitoring box 1, the clamping plate 21 just clamps the camera 3, and then the displacement monitoring work is carried out through the camera 3;

[0059] S3. Maintenance and servicing processing

[0060] When maintenance and servicing are required, the reel 43 is unwound. The compressed return spring 16 can make the assembly table 13 slowly move out of the monitoring box 1, so as to cooperate with the release of the clamping of the assembly component 2. At the same time, when the assembly table 13 moves out, the glass door 15 will automatically open through the rotating head 51 and the synchronous belt 52, facilitating the removal of the assembly table 13.

[0061] The disassembly and assembly of the present invention are very convenient. During maintenance, the assembly table 13 is removed and the gear 25 is rotated in the reverse direction, then the clamping is automatically released, thus facilitating the subsequent maintenance work. This is beneficial to solving the problems existing in the use of the existing machine vision. In order to protect the camera, the camera is often installed inside the protection box, and visual capture and observation are carried out through the glass of the box door. Although the protection is relatively good in this way, the assembly inside the protection box makes the installation and disassembly inconvenient. Being located inside makes it easy to cause inconvenience in inspection and maintenance, which is not conducive to subsequent replacement and maintenance. At the same time, the screw-fixed installation is also relatively troublesome.

[0062] It should be understood that although this specification is described according to each embodiment, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard 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.

[0063] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present invention, and they are not used to limit the protection scope of the present invention. Any equivalent embodiments or changes made without departing from the technical spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A laser cladding monitoring system based on machine vision, characterized in that It includes a monitoring box (1), an assembly component (2) and a pulling component (4); The assembly table (13) is installed inside the monitoring box (1), and both sides of the assembly table (13) are slidably connected to the front and back of the monitoring box (1); One side of the assembly table (13) is open, and a camera (3) is placed on the inner top. A glass door (15) is provided at the open end of the monitoring box (1); The assembly component (2) includes clamping plates (21), sliders (22), threaded cylinders (23), screw rods (24), gears (25) and racks (26); Two clamping plates (21) are symmetrically arranged inside the assembly table (13) and on both sides of the camera (3); A slider (22) is provided at the bottom end of the clamping plate (21). Slideways are provided at the inner bottom of the assembly table (13), and the slider (22) can slide left and right in the slideways; A threaded cylinder (23) is provided on the back of the clamping plate (21). The threaded cylinder (23) is threadedly connected to one end of the screw rod (24), and the other end of the screw rod (24) is connected to a gear (25) on the inner wall of the assembly table (13). The gear (25) meshes with one end of the rack (26), and the other end of the rack (26) passes through the assembly table (13) and is connected to the inner wall of the monitoring box (1); The pulling component (4) is installed on the monitoring box (1), and the pulling component (4) is respectively connected to the assembly table (13) and the glass door (15).

2. The laser cladding monitoring system based on machine vision according to claim 1, wherein Sliding rails (11) are provided on both sides of the inner wall of the monitoring box (1). A slide bar (12) slides inside the sliding rails (11). The slide bar (12) is arranged on both sides of the assembly table (13), so that the assembly table (13) is slidably connected to the monitoring box (1); The sliding rails (11), the slide bars (12) and the racks (26) are arranged in parallel.

3. The laser cladding monitoring system based on machine vision according to claim 1, characterized in that, A door shaft (14) is rotatably installed at the upper end of the opening of the monitoring box (1), and one end of the glass door (15) is connected to the door shaft (14).

4. The laser cladding monitoring system based on machine vision according to claim 1, wherein, A number of positioning rods (211) are provided on the clamping surface of the clamping plate (21), and the positioning rods (211) can be inserted into the corresponding sockets at both ends of the camera (3).

5. The laser cladding monitoring system based on machine vision according to claim 3, wherein The pulling component (4) includes a pull belt (41), a pulley (42), a reel (43) and a servo motor (44); One end of the pull belt (41) is connected to the assembly table (13). The other end of the pull belt (41) passes through a pulley (42) arranged inside the monitoring box (1), and vertically passes through the monitoring box (1) and is wound around the reel (43). A servo motor (44) is connected to one side of the reel (43). The servo motor (44) is installed at the top end of the monitoring box (1), and the servo motor (44) is connected to the door shaft (14) through a synchronous component (5).

6. The laser cladding monitoring system based on machine vision according to claim 5, characterized in that, The synchronous component (5) includes a rotating head (51) and a synchronous belt (52); Rotating heads (51) docked with the rotating shafts of the servo motor (44) and the door shaft (14), and a synchronous belt (52) is connected between the rotating heads (51).

7. The laser cladding monitoring system based on machine vision according to claim 1, characterized in that, A return spring (16) is connected between the assembly table (13) and the inner wall of the monitoring box (1) to keep the assembly table (13) in a reset state after being pulled by the pulling component (4).

8. The laser cladding monitoring system based on machine vision according to claim 1, characterized in that On both sides of the top of the assembly table (13), sliding baffles (18) are respectively provided. Concave notches are respectively provided on the side walls of the monitoring box (1). The sliding baffles (18) can slide in the concave notches on the side walls of the monitoring box (1). A maintenance opening (17) is provided at the concave notch of the monitoring box (1). When the assembly table (13) is in the storage state, the sliding baffles (18) slide in the concave notches to block the maintenance opening (17).

9. The laser cladding monitoring system based on machine vision according to claim 1, characterized in that, An opening is provided on the sliding baffle (18), and a heat dissipation net (181) is provided at the opening.

10. The laser cladding monitoring system based on machine vision according to claim 2, wherein, A stop block (111) is provided inside the slide rail (11); the stop block (111) is used to limit the position of the slide bar (12). When the stop block (111) contacts the slide bar (12), the assembly table (13) is in the storage position.

Images