Tin soldering robot

Abstract

The invention discloses a tin soldering robot, and belongs to the technical field of tin soldering. The base table is provided with a speed chain conveying mechanism used for conveying the workpiece containing mechanism. A workpiece placing mechanism for placing and fixing a to-be-processed workpiece is further mounted on the double-speed chain conveying mechanism; a limiting jacking mechanism used for positioning and driving the workpiece containing mechanism to move upwards is further installed on the base table. A welding mechanism used for conducting tin soldering and detection on a workpiece is installed on the base table. A welding head self-cleaning mechanism used for automatically cleaning a welding head of the welding mechanism is further installed on the base table. A welding head spot inspection mechanism used for detecting the welding mechanism is further installed on the base table. The welding head spot inspection mechanism comprises a welding head positioning assembly, a welding head temperature and deviation detection assembly and a tin feeding gun detection assembly. In this way, the position of the welding head, the coaxiality of the tin bar and the coaxiality of the feeding head can be automatically detected before each time of use.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of soldering, in particular to a soldering robot. BACKGROUND

[0002] The soldering robot is an automatic welding device integrating a high-precision mechanical arm, an intelligent temperature control system, a solder head solder feeding mechanism and a visual positioning module, and is widely used in circuit board and component solder joint processing in the fields of electronic manufacturing, automotive electronics and industrial control equipment. It can accurately complete a series of actions such as solder feeding, temperature control, solder joint forming and removal through pre-set programs or visual guidance, and replace manual work to complete repetitive and high-precision soldering operations. It not only ensures the consistency and stability of solder joints, reduces the defect rate of false welding and missed welding, but also meets the welding requirements of miniature components and complex workstations, greatly improves production efficiency, and reduces the safety risk of manual contact with high-temperature soldering.

[0003] Chinese patent CN219336302U discloses a full-automatic soldering machine for charger flying wire, comprising a rack; a main flow line module, a carrier jacking module, an XY gantry module, a positioning module and a cleaning module are arranged on the rack; the main flow line module is horizontally arranged on the table top of the rack, the carrier jacking module is provided with a turnover module at the top, and the turnover module corresponds to the position of the main flow line module; the XY gantry module is located above the main flow line module, and a visual soldering module is arranged on the XY gantry module; the positioning module and the cleaning module are respectively located on both sides of the main flow line module. The device can convey the chargers on the carriers and simultaneously perform soldering operation on the flying wires of the chargers on the two carriers, improve the soldering efficiency, replace the robot with the gantry module, reduce the procurement cost, facilitate installation of more mechanisms or modules on the rack with limited space, and improve the space utilization rate of the rack; but the device still has the following problems: Before use, the solder head needs to be detected manually, which is time-consuming.

[0004] Therefore, the present application provides a soldering robot to solve the above problems. SUMMARY

[0005] In view of the above-mentioned shortcomings of the prior art, the present application provides a soldering robot.

[0006] To achieve the above purpose, the present application realizes the following technical solutions: A soldering robot, comprising a base station; The base is provided with a multiple-speed chain conveying mechanism for conveying a workpiece placing mechanism; the multiple-speed chain conveying mechanism is further provided with a workpiece placing mechanism for placing and fixing a workpiece to be processed; the base is further provided with a limiting and jacking mechanism for positioning and driving the workpiece placing mechanism to move upward; The base is further provided with a welding mechanism for soldering and detecting the workpiece; The base is further provided with a welding head self-cleaning mechanism for automatically cleaning the welding head of the welding mechanism; The base is further provided with a welding head spot checking mechanism for detecting the welding mechanism; The welding head spot checking mechanism comprises a welding head positioning assembly, a welding head temperature and deviation detecting assembly and a solder gun detecting assembly; the welding head positioning assembly, the welding head temperature and deviation detecting assembly and the solder gun detecting assembly are connected with the base; the welding head positioning assembly is used for positioning and detecting the welding head of the welding mechanism; the welding head temperature and deviation detecting assembly is used for detecting the temperature of the welding head and can detect the deviation of the welding head after each replacement; the solder gun detecting assembly is used for detecting the coaxiality of the solder gun and the welding head of the welding mechanism; Further, the welding head positioning assembly comprises position sensors; the position sensors are distributed in a circumferential array; the position sensors are fixedly connected with the base; the position sensors are electrically connected with the controller; Further, the welding head temperature and deviation detecting assembly comprises a welding head temperature detecting block and a welding head deviation detecting block; the welding head temperature detecting block and the welding head deviation detecting block are fixedly connected with the base; the welding head temperature detecting block and the welding head deviation detecting block are electrically connected with the controller; Further, a plurality of groups of solder gun detecting assemblies are distributed in a three-dimensional manner (circumferential array + staggered height); each group is at a different height; the solder gun detecting assembly comprises a GT sensor, a first sliding rail and a detection plate; the GT sensor is fixedly connected with the base; the moving end of the GT sensor is fixedly connected with the detection plate; the detection plate is limitingly and slidingly connected with the first sliding rail through a sliding block; the first sliding rail is fixedly connected with the base; the GT sensor is electrically connected with the controller; Further, the welding mechanism comprises a welding detecting assembly, a welding position dustproof assembly and a locking assembly; the welding detecting assembly is used for soldering the workpiece; the welding position dustproof assembly is used for preventing dust when soldering is not needed; the locking assembly is used for locking the welding position dustproof assembly; the welding detecting assembly and the locking assembly are connected with the base; the locking assembly is connected with the welding position dustproof assembly; Further, the welding detecting assembly comprises a multi-axis welding head and a CCD detecting device; the fixed end of the multi-axis welding head is fixedly connected with the base; the moving end of the multi-axis welding head is fixedly connected with the CCD detecting device; the multi-axis welding head and the CCD detecting device are electrically connected with the controller; Furthermore, the welding position dustproof assembly includes a splash guard, a handle, and a hinge; two hinges are symmetrically distributed front and back; one leaf of the hinge is fixedly connected to the splash guard; the other leaf of the hinge is fixedly connected to the base; an clearance hole is provided at the upper end of the hinge; the upper end of the hinge is fixedly connected to the handle; the splash guard is connected to the locking assembly; the clearance hole is used to avoid the welding position. Furthermore, the limiting lifting mechanism includes a first electric push cylinder and a pneumatic buffer stop; both the first electric push cylinder and the pneumatic buffer stop are fixedly connected to the housing of the double-speed chain conveyor mechanism; both the first electric push cylinder and the pneumatic buffer stop are electrically connected to the controller. Furthermore, the workpiece placement mechanism includes a carrier platform and a tray; the tray is placed on the upper side of the drive end of the double-speed chain conveyor; the carrier platform is fixedly connected to the tray; the carrier platform is provided with a contour placement groove adapted to the workpiece to be soldered. Furthermore, the welding head self-cleaning mechanism includes a suction tube, a cleaning box, and a cleaning roller; the suction tube is fixedly connected to the base; the suction tube is fixedly connected to and communicates with an external smoke extraction device; the cleaning box is fixedly connected to the base; two motors are fixedly installed inside the cleaning box, and the drive ends of the two motors are respectively fixedly connected to a cleaning roller; a copper wire brush is sleeved on the outside of the cleaning roller.

[0007] To better achieve the objectives of this invention, the present invention also provides a subject matter to solve the above-mentioned problems.

[0008] Compared with the prior art, the beneficial effects of this invention are as follows: 1. This invention can automatically detect the position of the soldering head, the coaxiality of the solder bar, and the coaxiality of the feeder head before each use; 2. This invention can also cover the welding position with dust when welding is not required, reducing the frequency of manual cleaning of dust adhering to the welding position, thereby reducing labor costs; 3. This invention can automatically clean the soldering head after soldering, avoiding the impact of unclean soldering head on subsequent soldering results, and can also perform visual inspection of soldered workpieces. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0010] Figure 1 A three-dimensional soldering robot according to the present invention Figure One ; Figure 2 This is a front view of a soldering robot according to the present invention; Figure 3 A three-dimensional soldering robot according to the present invention Figure Two ; Figure 4 A three-dimensional soldering robot according to the present invention Figure Three ; Figure 5 This is a partial perspective view of a soldering robot according to the present invention; Figure 6 for Figure 3 Enlarged view of point B in the middle; Figure 7 for Figure 5 Enlarged view of point A in the middle.

[0011] The labels in the diagram represent: 1. Base; 2. Double-speed chain conveyor mechanism; 3. Limiting and lifting mechanism; 31. First electric push cylinder; 32. Pneumatic buffer stop; 4. Workpiece placement mechanism; 41. Carrier platform; 42. Pallet; 5. Welding head self-cleaning mechanism; 51. Suction tube; 52. Cleaning box; 53. Cleaning roller; 6. Welding mechanism; 61. Welding inspection assembly; 611. Multi-axis welding head; 612. CCD inspection equipment; 62. Welding position dust shielding assembly; 621. 622. Splash guard; 623. Handle; 624. Hinge; 625. Clearance hole; 63. Locking assembly; 631. Indexing locker; 7. Welding head inspection mechanism; 71. Welding head positioning assembly; 711. Position sensor; 72. Welding head temperature and deviation detection assembly; 721. Welding head temperature detection block; 722. Welding head deviation detection block; 73. Solder feeding gun detection assembly; 731. GT sensor; 732. First slide rail; 733. Detection board. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0013] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0014] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-7 A soldering robot, comprising a base 1; The base 1 is equipped with a double-speed chain conveyor 2 for conveying the workpiece placement mechanism 4; the double-speed chain conveyor 2 is also equipped with a workpiece placement mechanism 4 for placing and fixing the workpiece to be processed; the base 1 is also equipped with a limiting lifting mechanism 3 for positioning and driving the workpiece placement mechanism 4 to move upward. The base 1 is equipped with a welding mechanism 6 for soldering and inspecting workpieces; The base 1 is also equipped with a welding head self-cleaning mechanism 5 for automatically cleaning the welding head of the welding mechanism 6. The base 1 is also equipped with a welding head inspection mechanism 7 for inspecting the welding mechanism 6; The welding head inspection mechanism 7 includes a welding head positioning component 71, a welding head temperature and deviation detection component 72, and a solder gun detection component 73. All three components are connected to the base 1. The welding head positioning component 71 is used to position and detect the welding head of the welding mechanism 6. The welding head temperature and deviation detection component 72 is used to detect the temperature of the welding head and to detect the deviation of the welding head after each replacement. The solder gun detection component 73 is used to detect the solder bar fed from the welding mechanism 6 to the suction nozzle.

[0015] In this invention, when the machine starts, the solder head positioning component 71, the solder head temperature and deviation detection component 72, and the solder gun detection component 73 respectively detect the position, temperature, solder detection component, and solder gun of the soldering mechanism 6. The detection process of the solder head inspection mechanism 7 is as follows: first, the solder head is positioned by the solder head positioning component 71; then, the temperature and solder head deviation are detected by the solder head temperature and deviation detection component 72; finally, the solder gun accuracy is detected by the solder gun detection component 73. After the solder workpiece is placed on the workpiece placement mechanism 4, the double-speed chain conveyor 2 drives the workpiece placement mechanism 4 to move. After moving to the soldering station, the limiting lifting mechanism 3 buffers and stops the workpiece placement mechanism 4. After stopping, the limiting lifting mechanism 3 lifts the workpiece placement mechanism 4. After lifting, the soldering mechanism 6 solders the workpiece. At the same time, the soldering mechanism 6 prevents the solder liquid from splashing and damaging other important parts at the soldering station. After soldering, the soldering mechanism 6 performs visual inspection on the solder workpiece. Then, the soldering mechanism 6 moves to the position of the solder head self-cleaning mechanism 5 to self-clean the solder head of the soldering mechanism 6.

[0016] The welding head positioning assembly 71 includes a position sensor 711; multiple position sensors 711 are arranged in a circular array; the position sensors 711 are fixedly connected to the base 1; and the position sensors 711 are electrically connected to the controller. The welding head temperature and deviation detection component 72 includes a welding head temperature detection block 721 and a welding head deviation detection block 722; both the welding head temperature detection block 721 and the welding head deviation detection block 722 are fixedly connected to the base 1; both the welding head temperature detection block 721 and the welding head deviation detection block 722 are electrically connected to the controller; a temperature sensor is installed inside the welding head temperature detection block 721; a displacement sensor is installed inside the welding head deviation detection block 722. Multiple sets of solder feeding gun detection components 73 are arranged in a three-dimensional circular array with staggered heights, each set being at a different height; each solder feeding gun detection component 73 includes a GT sensor 731; a first slide rail 732 and a detection plate 733; the GT sensor 731 is fixedly connected to the base 1; the moving end of the GT sensor 731 is fixedly connected to the detection plate 733; the detection plate 733 is slidably connected to the first slide rail 732 via a slider; the first slide rail 732 is fixedly connected to the base 1; the GT sensor 731 is electrically connected to the controller.

[0017] In this invention, after the device is started, the welding mechanism 6 moves its installed welding head between multiple position sensors 711. The controller controls the multiple position sensors 711 to cooperate in positioning and detecting the welding head. Then, after the welding head is fully preheated, the welding mechanism 6 moves the welding head to abut against the detection end of the welding head temperature detection block 721. The controller controls the temperature sensor in the welding head temperature detection block 721 to detect whether the welding head temperature meets the standard. Each time the welding head is replaced, the welding mechanism 6 moves the newly installed welding head into the welding head deviation detection block 722. Since there will be a positional difference each time the welding head is installed, the displacement sensor in the welding head deviation detection block 722 transmits the detected deviation to the controller, and the controller corrects it during welding. Then, the controller controls the welding mechanism 6 to move its installed solder feeding gun close to multiple detection boards 733, so that the detection boards 733 slide along the first slide rail 732. At the same time, the first slide rail 732 slides and transmits the deviation to the controller through the GT sensor 731. If the deviation is within the allowable range, no manual adjustment is required. If it exceeds the allowable range, the position of the solder feeding gun needs to be manually adjusted.

[0018] Example 2: In some embodiments, such as Figure 1 , Figure 3 and Figure 5 As shown, in a preferred embodiment of the present invention, the welding mechanism 6 includes a welding detection component 61, a welding position dust shielding component 62, and a locking component 63; the welding detection component 61 is used to solder the workpiece; the welding position dust shielding component 62 is used to prevent dust from entering the welding position when soldering is not required; the locking component 63 is used to lock the welding position dust shielding component 62; both the welding detection component 61 and the locking component 63 are connected to the base 1; the locking component 63 is connected to the welding position dust shielding component 62. The welding inspection assembly 61 includes a multi-axis welding head 611 and a CCD inspection device 612; the fixed end of the multi-axis welding head 611 is fixedly connected to the base 1; the moving end of the multi-axis welding head 611 is fixedly connected to the CCD inspection device 612; both the multi-axis welding head 611 and the CCD inspection device 612 are electrically connected to the controller. The multi-axis soldering head 611 adopts existing mature technologies in this field, such as the high-performance 5-axis horizontal multi-joint soldering robot developed by UNIX Corporation of Japan, model: UNIX-HFR454S; which will not be elaborated on in this article. The welding station dust shielding assembly 62 includes a splash guard 621, a handle 622, and a hinge 623; two hinges 623 are symmetrically distributed front and back; one leaf of the hinge 623 is fixedly connected to the splash guard 621; the other leaf of the hinge 623 is fixedly connected to the base 1; an avoidance hole 624 is provided at the upper end of the hinge 623; the upper end of the hinge 623 is fixedly connected to the handle 622; the splash guard 621 is connected to the locking assembly 63; the avoidance hole 624 is used to avoid the welding station; The locking assembly 63 includes an indexing locking device 631; two indexing locking devices 631 are symmetrically distributed front and rear; the indexing locking device 631 is fixedly installed on the splash guard 621 and can be locked to the base 1. In this invention, the double-speed chain conveyor 2 drives the workpiece placement mechanism 4 to move below the clearance hole 624, and then the limiting lifting mechanism 3 moves the workpiece to be soldered upward through the workpiece placement mechanism 4. Then, the controller controls the multi-axis soldering head 611 to move and solder the workpiece. After the soldering is completed, the controller controls the CCD detection device 612 to detect the soldered workpiece. At the same time, the anti-splash plate 621 prevents the solder liquid from splashing during the soldering process and damaging other important components. The operator can turn the indexing lock 631 to unlock the anti-splash plate 621, and then pull the anti-splash plate 621 around the hinge 623 by the handle 622 to open the anti-splash plate 621.

[0019] Example 3: In some embodiments, such as Figures 1-7 As shown, in a preferred embodiment of the present invention, the limiting lifting mechanism 3 includes a first electric push cylinder 31 and a pneumatic buffer stop 32; both the first electric push cylinder 31 and the pneumatic buffer stop 32 are fixedly connected to the housing of the double-speed chain conveyor mechanism 2; both the first electric push cylinder 31 and the pneumatic buffer stop 32 are electrically connected to the controller. The workpiece placement mechanism 4 includes a carrier platform 41 and a tray 42; the tray 42 is placed on the upper side of the drive end of the double-speed chain conveyor 2; the carrier platform 41 is fixedly connected to the tray 42; the carrier platform 41 is provided with a contour placement groove adapted to the workpiece to be soldered.

[0020] The welding head self-cleaning mechanism 5 includes a suction tube 51, a cleaning box 52, and a cleaning roller 53; the suction tube 51 is fixedly connected to the base 1; the suction tube 51 is fixedly connected to and communicates with an external smoke extraction device; the cleaning box 52 is fixedly connected to the base 1; two motors are fixedly installed inside the cleaning box 52, and the drive ends of the two motors are respectively fixedly connected to a cleaning roller 53; a copper wire brush is sleeved on the outside of the cleaning roller 53.

[0021] In this invention, the workpiece is placed in the contour placement slot of the carrier table 41 in the previous processing step. Then, the double-speed chain conveyor 2 drives the tray 42 to move through the carrier table 41. After the pneumatic buffer stopper 32 stops the tray 42, the first electric pusher cylinder 31 lifts the tray 42 and the carrier table 41 upwards into the soldering station. After the controller controls the multi-axis soldering head 611 to solder the workpiece, the controller controls the multi-axis soldering head 611 to drive the soldering head to move into the cleaning box 52. The motor inside the cleaning box 52 drives the cleaning roller 53 to rotate. The rotation of the cleaning roller 53 drives the copper wire brush to clean the surface of the soldering head. At the same time, the external fume extraction device extracts the generated smoke and dust through the suction tube 51.

[0022] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A soldering robot comprising a base station (1), characterized in that: Also include the speed chain conveying mechanism (2), limit lifting mechanism (3), workpiece placement mechanism (4), welding head self-cleaning mechanism (5), welding mechanism (6) and welding head inspection mechanism (7); The base (1) is provided with a speed chain conveying mechanism (2) for conveying the workpiece placement mechanism (4); the speed chain conveying mechanism (2) is further provided with a workpiece placement mechanism (4) for placing and fixing the workpiece to be processed; the base (1) is further provided with a limit lifting mechanism (3) for positioning and driving the workpiece placement mechanism (4) to move upward; The base (1) is provided with a welding mechanism (6) for soldering and detecting the workpiece; The base (1) is further provided with a welding head self-cleaning mechanism (5) for automatically cleaning the welding head of the welding mechanism (6); The base (1) is further provided with a welding head inspection mechanism (7) for detecting the welding mechanism (6); The welding head inspection mechanism (7) comprises a welding head positioning assembly (71), a welding head temperature and deviation detection assembly (72), and a solder gun detection assembly (73); the welding head positioning assembly (71), the welding head temperature and deviation detection assembly (72), and the solder gun detection assembly (73) are connected with the base (1); the welding head positioning assembly (71) is used for positioning and detecting the welding head of the welding mechanism (6); the welding head temperature and deviation detection assembly (72) is used for detecting the temperature of the welding head and can detect the deviation of the welding head after each replacement; the solder gun detection assembly (73) is used for detecting the coaxiality of the solder gun and the welding head of the welding mechanism (6).

2. The soldering robot according to claim 1, characterized in that, The welding head positioning assembly (71) comprises a plurality of position sensors (711) arranged in a circumferential array; the position sensors (711) are fixedly connected with the base (1); and the position sensors (711) are electrically connected with a controller.

3. The soldering robot according to claim 2, characterized in that, The welding head temperature and deviation detection assembly (72) comprises a welding head temperature detection block (721) and a welding head deviation detection block (722); the welding head temperature detection block (721) and the welding head deviation detection block (722) are fixedly connected with the base (1); and the welding head temperature detection block (721) and the welding head deviation detection block (722) are electrically connected with the controller.

4. The soldering robot according to claim 3, characterized in that A plurality of solder gun detection assemblies (73) are arranged in a three-dimensional manner (circumferential array + staggered height); each group is at a different height; the solder gun detection assembly (73) comprises a GT sensor (731), a first sliding rail (732), and a detection plate (733); the GT sensor (731) is fixedly connected with the base (1); the moving end of the GT sensor (731) is fixedly connected with the detection plate (733); the detection plate (733) is limitingly and slidably connected with the first sliding rail (732) through a sliding block; the first sliding rail (732) is fixedly connected with the base (1); and the GT sensor (731) is electrically connected with the controller.

5. The soldering robot according to claim 4, characterized in that The welding mechanism (6) comprises a welding detection assembly (61), a welding position dustproof assembly (62) and a locking assembly (63); the welding detection assembly (61) is used for soldering a workpiece; the welding position dustproof assembly (62) is used for preventing dust when soldering is not needed; the locking assembly (63) is used for locking the welding position dustproof assembly (62); the welding detection assembly (61) and the locking assembly (63) are connected with the base (1); the locking assembly (63) is connected with the welding position dustproof assembly (62).

6. The soldering robot according to claim 5, characterized in that The welding detection assembly (61) comprises a multi-axis welding head (611) and a CCD detection device (612); the fixed end of the multi-axis welding head (611) is fixedly connected with the base (1); the moving end of the multi-axis welding head (611) is fixedly connected with the CCD detection device (612); the multi-axis welding head (611) and the CCD detection device (612) are electrically connected with the controller.

7. The soldering robot according to claim 6, characterized in that The welding position dustproof assembly (62) comprises a splash plate (621), a handle (622) and a hinge (623); two hinges (623) are symmetrically distributed front and back; one leaf plate of the hinge (623) is fixedly connected with the splash plate (621); the other leaf plate of the hinge (623) is fixedly connected with the base (1); the upper end of the hinge (623) is provided with an avoiding hole (624); the upper end of the hinge (623) is fixedly connected with the handle (622); the splash plate (621) is connected with the locking assembly (63); the avoiding hole (624) is used for avoiding the welding position.

8. The soldering robot according to claim 7, characterized in that The limiting and jacking mechanism (3) comprises a first electric push cylinder (31) and a pneumatic buffer stopper (32); the first electric push cylinder (31) and the pneumatic buffer stopper (32) are fixedly connected with the shell of the speed chain conveying mechanism (2); the first electric push cylinder (31) and the pneumatic buffer stopper (32) are electrically connected with the controller.

9. The soldering robot according to claim 8, characterized in that The workpiece placing mechanism (4) comprises a carrier table (41) and a tray (42); the tray (42) is placed on the upper side of the driving end of the speed chain conveying mechanism (2); the carrier table (41) is fixedly connected with the tray (42); the carrier table (41) is provided with a profiling placing groove matched with the workpiece to be soldered.

10. The soldering robot according to claim 9, characterized in that, The welding head self-cleaning mechanism (5) comprises a suction cylinder (51), a cleaning box (52) and a cleaning roller (53); the suction cylinder (51) is fixedly connected with the base (1); the suction cylinder (51) is fixedly connected with and communicated with an external smoke extraction device; the cleaning box (52) is fixedly connected with the base (1); two motors are fixedly installed in the cleaning box (52); the driving ends of the two motors are fixedly connected with one cleaning roller (53) respectively; the outer side of the cleaning roller (53) is sleeved with a copper wire brush.

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