Suction arm capable of automatically tracking welding fume

Abstract

The utility model belongs to the technical field of smoke dust collection in welding operation, and discloses an air suction arm capable of automatically tracking welding smoke. Comprising a supporting arm assembly A, a supporting arm assembly B and a rotary supporting assembly used for driving the supporting arm assembly A and the supporting arm assembly B to rotate, joint motors for driving the support arm assembly A or the support arm assembly B to move are arranged at the joint of the support arm assembly A and the support arm assembly B and the joint of the support arm assembly B and the rotary support assembly, and an air suction port is formed in the front end face of the support arm assembly A. The welding smoke suction arm is applied to smoke collection of welding operation, is long in service life, high in welding smoke collection efficiency, convenient to mount and move, low in cost and convenient to maintain, overcomes the defect of manual movement of a suction hood of a traditional suction arm, and is used for replacing the traditional welding smoke suction arm.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding smoke collection and relates to an automatic tracking welding smoke suction arm. Background Art

[0002] Welding plays an important role in industrial production. Welding smoke not only pollutes the environment, but also harms the health of workers. At present, the methods for capturing welding smoke include: overall circulation purification in the workshop, top suction hood, fixed welding room, telescopic welding room, environmentally friendly welding gun, suction arm, etc. Each welding smoke capture method has its own applicable environment. For welding conditions with concentrated welding points and relatively fixed welding stations, suction arm can be used. The suction arm can swing in all directions and hover at will. The position of the suction hood can be adjusted according to the welding point, and collection can be achieved at close range at the dust source.

[0003] The welding suction arm is a product used to capture welding smoke. The capture range of the capture port is limited. During use, the suction arm needs to be manually moved according to the welding position to ensure that the welding smoke can be effectively captured. The welding point often deviates from the capture port and the welding smoke overflows. If the capture port is constantly moved manually, the work efficiency is affected. Therefore, it is urgent to develop an automatic tracking suction arm that does not require manual movement within the working radius of the suction arm. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies in the above-mentioned background technology and to provide an automatic tracking welding smoke suction arm, which is used for capturing smoke from welding operations and has a long service life, high welding smoke capturing efficiency, convenient installation and movement, low cost, and convenient maintenance. It overcomes the shortcomings of the traditional suction arm's manually moved suction hood and is used to replace the traditional welding smoke suction arm.

[0005] The technical solution adopted by the utility model to solve its technical problems is: an automatic tracking welding smoke suction arm, including an arm assembly A, an arm assembly B, and a rotating support assembly which are arranged in sequence; a joint motor for driving the arm assembly A or the arm assembly B to move is arranged at the connection between the arm assembly A and the arm assembly B, and at the connection between the arm assembly B and the rotating support assembly, and an air suction port is arranged on the front end face of the arm assembly A.

[0006] The arm assembly A comprises a pipe A, an air inlet is arranged at the front end of the pipe A, a circle of anti-collision strips is arranged on the outer periphery of the air inlet, and an ultraviolet sensor and an ultrasonic sensor are arranged on the end surface of the air inlet. The end of the pipe A is connected to the pipe B of the arm assembly B through a hose. The arm A is arranged on the outer wall of the pipe A, and the end of the arm A is arranged with a joint motor drive board A, the output end of the joint motor A is connected with the joint motor drive board A, and the joint motor A is arranged between the arm assembly A and the arm assembly B.

[0007] The support arm assembly B includes a pipeline B, the front end of which is connected to the pipeline A of the support arm assembly A through a hose; the support arm B is arranged on the outer wall of the pipeline B, the end of the support arm B is arranged at the joint motor driving plate B, the front end of the support arm B is arranged at the joint motor fixing plate A, the fixed end of the joint motor A is connected to the joint motor fixing plate A, the output end of the joint motor B is connected to the joint motor driving plate B, and the joint motor B is arranged between the support arm assembly B and the rotating support assembly.

[0008] The rotating support assembly includes a base plate, on which a servo motor and an external gear bearing are respectively arranged, the output end of the servo motor is connected to a gear, the gear is meshingly connected to the external gear bearing, a pipe C is fixedly arranged on the external gear bearing, the front end of the pipe C is connected to the pipe B through a hose, a support arm C is arranged on the outer wall of the pipe C, a joint motor fixing plate B is arranged on the support arm C, and the fixed end of the joint motor B is connected to the joint motor fixing plate B.

[0009] Furthermore, the arm assembly A and the arm assembly B, and the arm assembly B and the rotating support assembly are connected by a hose.

[0010] Furthermore, the pipe A is connected to the support arm A by welding; the joint motor drive plate A is connected to the support arm A by welding; the air intake port is plugged into the pipe A; the ultraviolet sensor and the ultrasonic sensor are respectively connected to the air intake port by snaps; and the anti-collision strip is bonded to the air intake port.

[0011] Furthermore, the pipeline B is welded to the support arm B; the joint motor driving plate B is welded to the support arm B; the joint motor fixing plate A is welded to the support arm B; and the joint motor A is connected to the joint motor fixing plate A by bolts.

[0012] Furthermore, the hose is connected to the ends of pipe A and pipe B by clamps; the hose is connected to the front ends of pipe B and pipe C by clamps.

[0013] Furthermore, a through hole is arranged on the bottom plate, and the end of the pipe C is connected to the through hole.

[0014] Furthermore, the servo motor is equipped with a reducer. The servo motor is fixed to the base plate through a servo motor fixing bracket. The servo motor fixing bracket and the external gear bearing are fixed to the base plate through bolts respectively. The servo motor and the servo motor fixing bracket are connected through bolts.

[0015] Furthermore, the gear is key-connected to the output end of the servo motor.

[0016] Furthermore, the pipeline C is connected to the external gear bearing through a flange, and the pipeline C is fixed to the flange through a reinforcing angle plate. The flange and the external gear bearing are connected by bolts. The pipeline C and the reinforcing angle plate, flange, and support arm C are all welded.

[0017] Furthermore, the joint motor fixing plate B is welded to the support arm C; the joint motor B is connected to the joint motor fixing plate B by bolts.

[0018] Further, the joint motor drive plate A is connected to the joint motor A by bolts. The joint motor drive plate B is connected to the joint motor B by bolts.

[0019] The tracking welding smoke suction arm is also equipped with a PLC control system. The joint motor A, joint motor B, servo motor, ultraviolet sensor, and ultrasonic sensor are respectively connected to the PLC control system, and are not limited to a specific model, as long as their working functions are realized.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] The utility model provides an automatic tracking welding smoke suction arm, which is used for capturing smoke in welding operations and has a long service life, high welding smoke capturing efficiency, convenient installation and movement, low cost, and convenient maintenance, thus overcoming the shortcomings of a traditional suction arm that manually moves the suction hood. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0023] Figure 1 The utility model is a structural schematic diagram of the working state of an automatic tracking welding smoke suction arm.

[0024] Figure 2 The utility model is a structural schematic diagram of an automatic tracking welding smoke suction arm when it is in a stopped state.

[0025] Figure 3 It is a structural schematic diagram of the support arm assembly A of the utility model.

[0026] Figure 4 It is a structural schematic diagram of the support arm assembly B of the utility model.

[0027] Figure 5 It is a structural schematic diagram of the rotary support assembly of the utility model.

[0028] In the figure, 1. pipe A, 2. support arm A, 3. joint motor drive board A, 4. air inlet, 5. anti-collision strip, 6. ultrasonic sensor, 7. UV sensor, 8. pipe B, 9. support arm B, 10. joint motor drive board B, 11. joint motor fixing plate A, 12. joint motor A, 13. hose A, 14. bottom plate, 15. servo motor fixing bracket, 16. servo motor, 17. external gear bearing, 18. flange, 19. reinforcing angle plate, 20. pipe C, 21. support arm C, 22. joint motor fixing plate B, 23. joint motor B, 24. hose B. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with the accompanying drawings, but the present invention is not limited to the following embodiments.

[0030] Example 1

[0031] An automatic tracking welding smoke extraction arm, such as Figure 1-5 As shown, it includes an arm assembly A, an arm assembly B, and a rotating support assembly for driving the arm assembly A and the arm assembly B to rotate, which are arranged in sequence; a joint motor for driving the arm assembly A or the arm assembly B to move is arranged at the connection between the arm assembly A and the arm assembly B, and at the connection between the arm assembly B and the rotating support assembly, and an air intake port 4 is arranged on the front end face of the arm assembly A.

[0032] The arm assembly A comprises a pipe A1, an air inlet 4 is arranged at the front end of the pipe A1, a circle of anti-collision strips 5 is arranged on the outer periphery of the air inlet 4, and an ultraviolet sensor 7 and an ultrasonic sensor 6 are arranged on the end surface of the air inlet 4. The end of the pipe A1 is connected to the pipe B8 of the arm assembly B through a hose. The arm A2 is arranged on the outer wall of the pipe A1, and the end of the arm A2 is arranged with a joint motor drive board A3, the output end of the joint motor A12 is connected with the joint motor drive board A3, and the joint motor A12 is arranged between the arm assembly A and the arm assembly B.

[0033] The arm assembly B includes a pipe B8, the front end of which is connected to the pipe A1 of the arm assembly A through a hose; an arm B9 is arranged on the outer wall of the pipe B8, a joint motor driving plate B10 is arranged at the end of the arm B9, a joint motor fixing plate A11 is arranged at the front end of the arm B9, the fixed end of the joint motor A12 is connected to the joint motor fixing plate A11, the output end of the joint motor B23 is connected to the joint motor driving plate B10, and the joint motor B23 is arranged between the arm assembly B and the rotating support assembly.

[0034] The rotating support assembly includes a base plate 14, on which a servo motor 16 and an external gear bearing 17 are respectively arranged, the output end of the servo motor 16 is connected to the gear, the gear is meshed and connected to the external gear bearing 17, a pipe C 20 is fixedly arranged on the external gear bearing 17, the front end of the pipe C 20 is connected to the pipe B 8 through a hose, a support arm C 21 is arranged on the outer wall of the pipe C 20, a joint motor fixing plate B 22 is arranged on the support arm C 21, and the fixed end of the joint motor B 23 is connected to the joint motor fixing plate B 22.

[0035] The arm assembly A and the arm assembly B, and the arm assembly B and the rotating support assembly are all connected through hoses.

[0036] The pipe A1 is connected to the support arm A2 by welding; the joint motor drive plate A3 is connected to the support arm A2 by welding; the air inlet 4 is plugged into the pipe A1; the ultraviolet sensor 7 and the ultrasonic sensor 6 are respectively connected to the air inlet 4 by snap-fitting; and the anti-collision strip 5 is bonded to the air inlet 4.

[0037] The pipeline B8 is welded to the support arm B9; the joint motor driving plate B10 is welded to the support arm B9; the joint motor fixing plate A11 is welded to the support arm B9; and the joint motor A12 is connected to the joint motor fixing plate A11 by bolts.

[0038] The hose is connected to the end of pipe A1 and the end of pipe B8 by a clamp; the hose is connected to the front end of pipe B8 and the front end of pipe C20 by a clamp.

[0039] A through hole is provided on the bottom plate 14, and the end of the pipe C 20 is connected to the through hole.

[0040] The servo motor 16 is equipped with a reducer. The servo motor 16 is fixed to the base plate 14 through the servo motor fixing bracket 15. The servo motor fixing bracket 15 and the external gear bearing 17 are fixed to the base plate 14 by bolts respectively. The servo motor 16 and the servo motor fixing bracket 15 are connected by bolts.

[0041] The gear is key-connected to the output end of the servo motor 16 .

[0042] The pipeline C 20 is connected to the external gear bearing 17 through the flange 18, and the pipeline C 20 is fixed to the flange 18 through the reinforcing angle plate 19. The flange 18 and the external gear bearing 17 are connected by bolts. The pipeline C 20 and the reinforcing angle plate 19, the flange 18, and the support arm C20 are all welded.

[0043] The joint motor fixing plate B 22 is welded to the support arm C 20; the joint motor B 23 is connected to the joint motor fixing plate B 22 by bolts.

[0044] The tracking welding smoke suction arm is also equipped with a PLC control system. The joint motor A12, the joint motor B 23, the servo motor 16, the ultraviolet sensor 7, and the ultrasonic sensor 6 are respectively connected to the PLC control system, and are not limited to a specific model, as long as their working functions are realized.

[0045] During operation: the joint motor B 23 drives the arm assembly B to fall, and the joint motor A drives the arm assembly A to open; the ultraviolet sensor 7 installed on the air intake port 4 detects the welding ultraviolet light, and the ultraviolet light generated by the welding arc point is detected by the ultraviolet sensor 7 (detecting ultraviolet rays), and the orientation is determined by transmitting the signal to the PLC control system; the ultrasonic sensor 6 measures the distance from the air intake port 4 to the welding point; the distance of the welding point is detected by the ultrasonic sensor 6 and compared with the set distance by transmitting the signal to the PLC control system. When the distance is greater than the set distance, the PLC control system drives the joint motor to move the suction arm toward the welding point until it reaches the set distance and stops; when the ultrasonic sensor 6 detects a distance less than the set distance, the PLC control system drives the joint motor to move the suction arm away from the welding point until it reaches the set distance and stops; the detection drive process is continuously adjusted and changed as the distance of the welding position changes, thereby achieving the purpose of automatically tracking and capturing welding smoke. When the distance exceeds the set parameter, the joint motor A12, the joint motor B 23, and the servo motor 16 drive the suction arm to move, so that the suction port 4 is adjusted in the front, back, left, and right directions, and the distance from the suction port 4 to the welding point is kept within the parameter setting range, thereby achieving the purpose of automatic tracking. In the shutdown state, the joint motor B 23 drives the support arm assembly B to stand upright, and the joint motor A12 drives the support arm assembly A to fold and retract. The bottom plate 14 of the rotating support assembly is installed on the smoke purification equipment (existing product), and the welding smoke enters from the suction port 4, along the support arm assembly A, the support arm assembly B, and the rotating support assembly into the smoke purification equipment (existing product) for purification.

[0046] Although the utility model has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the utility model. Therefore, these modifications or improvements made without departing from the spirit of the utility model are within the scope of protection claimed by the utility model.

Claims

1. An automatic tracking welding smoke suction arm, characterized in that: It comprises an arm assembly A, an arm assembly B, and a rotating support assembly used to drive the arm assembly A and the arm assembly B to rotate, which are arranged in sequence; a joint motor is arranged at the connection between the arm assembly A and the arm assembly B, and at the connection between the arm assembly B and the rotating support assembly to drive the arm assembly A or the arm assembly B to move, and an air intake port (4) is arranged on the front end surface of the arm assembly A.

2. The automatic tracking welding smoke suction arm according to claim 1, characterized in that: The arm assembly A and the arm assembly B, as well as the arm assembly B and the rotating support assembly are connected via hoses.

3. The automatic tracking welding smoke suction arm according to claim 1, characterized in that: The support arm assembly A comprises a pipe A (1), an air inlet (4) is arranged at the front end of the pipe A (1), a circle of anti-collision strips (5) are arranged on the outer circumference of the air inlet (4), and an ultraviolet sensor (7) and an ultrasonic sensor (6) are arranged on the end surface of the air inlet (4).

4. The automatic tracking welding smoke suction arm according to claim 1, characterized in that: The arm assembly B comprises a pipe B (8), the front end of which is connected to the pipe A (1) of the arm assembly A via a hose; an arm B (9) is arranged on the outer wall of the pipe B (8), a joint motor driving plate B (10) is arranged at the end of the arm B (9), a joint motor fixing plate A (11) is arranged at the front end of the arm B (9), a fixed end of the joint motor A (12) is connected to the joint motor fixing plate A (11), an output end of the joint motor B (23) is connected to the joint motor driving plate B (10), and the joint motor B (23) is arranged between the arm assembly B and the rotating support assembly.

5. The automatic tracking welding smoke suction arm according to claim 4, characterized in that: The rotary support assembly comprises a base plate (14), on which a servo motor (16) and an external gear bearing (17) are respectively arranged, the output end of the servo motor (16) is connected to a gear, the gear is meshingly connected to the external gear bearing (17), a pipe C (20) is fixedly arranged on the external gear bearing (17), the front end of the pipe C (20) is connected to a pipe B (8) via a hose, a support arm C (21) is arranged on the outer wall of the pipe C (20), a joint motor fixing plate B (22) is arranged on the support arm C (21), and the fixed end of the joint motor B (23) is connected to the joint motor fixing plate B (22).

6. The automatic tracking welding smoke suction arm according to claim 3, characterized in that: The end of the pipe A (1) is connected to the pipe B (8) of the arm assembly B through a hose.

7. The automatic tracking welding smoke suction arm according to claim 3, characterized in that: An arm A (2) is arranged on the outer wall of the pipe A (1), a joint motor drive board A (3) is arranged at the end of the arm A (2), an output end of the joint motor A (12) is connected to the joint motor drive board A (3), and the joint motor A (12) is arranged between the arm assembly A and the arm assembly B.

8. The automatic tracking welding smoke suction arm according to claim 5, characterized in that: The gear is key-connected to the output end of the servo motor (16).

9. The automatic tracking welding smoke suction arm according to claim 5, characterized in that: The servo motor (16) is fixed on the base plate (14) via a servo motor fixing bracket (15).

10. The automatic tracking welding smoke suction arm according to claim 5, characterized in that: The pipeline C (20) is connected to the external gear bearing (17) via a flange (18), and the pipeline C (20) is fixed to the flange (18) via a reinforcing angle plate (19).

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