Automatic welding device for mechanical arm

Abstract

The utility model discloses an automatic welding device for a mechanical arm, which relates to the technical field of automatic welding machines and comprises a working table, a collecting box is fixedly connected onto the working table, an exhaust pipe is fixedly communicated onto the collecting box, a fan and a fixing block are mounted in the exhaust pipe, a welding gun is mounted on the fixing block, and an air collecting cover is detachably mounted on the fixing block. The air collecting cover is communicated with the collecting box, and the mechanical arm is arranged on the workbench. The welding machine is reasonable in design structure, the mechanical arm is used for enabling the fixing block to synchronously drive the welding gun and the air collecting cover to move at multiple points on one face, the moving assembly is used for moving the workbench, the working space of the welding gun is enlarged, the welding range of the welding gun is widened, the air collecting cover is made to move synchronously with the welding gun, and the welding efficiency is improved. And then the draught fan draws air into the collecting box through the exhaust pipe, so that the air collecting cover can conduct targeted air suction on the welding face of the welding gun, the situation that the welding fume is scattered outwards is avoided, and the collecting effect on the welding fume is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic welding machines, in particular to an automatic welding device with a mechanical arm. Background Art

[0002] Robotic arm welding is a technology that uses robots for welding operations. Welding robots usually consist of two parts, namely the arm and the wrist. The arm part is mainly responsible for determining the position of the welding gun, while the wrist part is used to determine the posture of the welding gun. This design enables the robot arm to accurately position the end effector, i.e. the welding gun, in three-dimensional space.

[0003] A Chinese patent with announcement number CN209021482U discloses a robot CNC welding device, which can suck the welding smoke into the inside of the smoking chamber through the second exhaust fan while the welding gun nozzle is working, and then suck the welding smoke inside the smoking chamber into the inside of the smoke exhaust duct through the first exhaust fan for centralized discharge, thereby avoiding the problem that the welding smoke generated when the welding gun nozzle is working will cause harm to the health of the workers.

[0004] Although the device can use the fan to collect the welding smoke generated when the welding gun is working, the fan can only suck air in a large range and cannot directly suck air from the working surface of the welding gun nozzle, which causes the welding smoke to expand outward to a certain extent, affecting the collection effect of the welding smoke. In addition, the welding range of the welding gun nozzle that only moves up and down and moves horizontally is limited. To this end, we provide a robotic arm automatic welding device to solve the above problems. Utility Model Content

[0005] 1) Technical issues solved

[0006] The purpose of the utility model is to make up for the deficiencies of the prior art and to provide a mechanical arm automatic welding device.

[0007] 2) Technical solution

[0008] To achieve the above purpose, the utility model provides the following technical solution: a robotic arm automatic welding device, comprising:

[0009] A workbench is fixedly connected to a collecting box, the collecting box is fixedly connected to an exhaust pipe, and a fan is installed in the exhaust pipe.

[0010] A fixed block is provided with a welding gun, and a wind collecting hood is detachably provided on the fixed block, and the wind collecting hood is connected with the collecting box.

[0011] The mechanical arm is arranged on the workbench and is used for performing multi-position adjustment on the fixed block.

[0012] The moving component is arranged below the workbench and is used for performing multi-point displacement of the workbench.

[0013] Furthermore, the fixed block is provided with an installation groove, the wind collecting hood is fixedly connected with a connecting pipe, and the connecting pipe is inserted into the installation groove, the wind collecting hood is provided with an open groove, the connecting pipe is fixedly connected with a convex ring, the connecting pipe is threadedly connected with a fixing nut, and the fixed block is located between the convex ring and the fixing nut.

[0014] Furthermore, one end of the connecting pipe away from the wind collecting hood is fixedly connected to a connecting hose, and one end of the connecting hose away from the connecting pipe is fixedly connected to the collecting box.

[0015] Furthermore, the robotic arm includes a fixed base fixedly connected to the workbench, a second motor fixedly connected to the fixed base, the output shaft of the second motor fixedly connected to the first arm body, the first arm body is equipped with a third motor, the output shaft of the third motor is equipped with the second arm body, the second arm body is equipped with a fourth motor, the output shaft of the fourth motor is fixedly connected to the third arm body, and one end of the third arm body is fixedly connected to the fixed block.

[0016] Furthermore, the moving component includes a control seat, a first motor is installed on the control seat, a slide groove is opened on the control seat, the output shaft of the first motor is fixedly connected to a screw rod, and the screw rod is rotatably connected in the slide groove, a slider is threadedly connected to the screw rod, and the top of the slider is fixedly connected to the workbench.

[0017] 3) Beneficial effects:

[0018] Compared with the prior art, the robot arm automatic welding device has the following beneficial effects:

[0019] The utility model coordinates the collection box, the exhaust pipe, the fan, the fixed block, the air collecting hood, the mechanical arm and the moving component, utilizes the mechanical arm to synchronously drive the welding gun and the air collecting hood to perform multi-point movement on one surface, and utilizes the moving component to displace the workbench, thereby increasing the working space of the welding gun, improving the welding range of the welding gun, and allowing the air collecting hood to move synchronously with the welding gun, and then allowing the fan to exhaust air in the collection box through the exhaust pipe, so that the air collecting hood can perform targeted suction on the welding surface of the welding gun, avoid the situation where welding smoke is dispersed, and ensure the collection effect of welding smoke. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The three-dimensional Figure 1 ;

[0021] Figure 2 The three-dimensional Figure 2 ;

[0022] Figure 3 The three-dimensional Figure 3 .

[0023] In the figure: 1. workbench; 2. control seat; 3. first motor; 4. slide groove; 5. screw rod; 6. slider; 7. fixed seat; 8. second motor; 9. first arm body; 10. third motor; 11. second arm body; 12. fourth motor; 13. third arm body; 14. fixed block; 15. welding gun; 16. mounting groove; 17. air collecting hood; 18. opening groove; 19. connecting pipe; 20. convex ring; 21. fixing nut; 22. connecting hose; 23. collecting box; 24. exhaust pipe. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1-3 As shown, the utility model provides a technical solution: a robotic arm automatic welding device, comprising a workbench 1, a fixed block 14, a robotic arm and a moving component.

[0026] A collecting box 23 is fixedly connected to the workbench 1, and an exhaust pipe 24 is fixedly connected to the collecting box 23, and a fan is installed in the exhaust pipe 24. The negative pressure generated after the fan is started is used to make the exhaust pipe 24 exhaust air in the collecting box 23, and the exhaust pipe 24 is connected to the factory exhaust duct, so that the welding smoke can be centrally collected and purified before being discharged.

[0027] A welding gun 15 is mounted on the fixed block 14 , and a wind collecting hood 17 is detachably mounted on the fixed block 14 . The wind collecting hood 17 is connected to the collecting box 23 . The wind collecting hood 17 is located below the welding gun 15 and can collect welding smoke generated after the welding gun 15 is working.

[0028] A mounting groove 16 is provided on the fixed block 14, a connecting pipe 19 is fixedly connected to the air collecting hood 17, an opening groove 18 is provided on the air collecting hood 17, and the connecting pipe 19 is inserted into the mounting groove 16, a convex ring 20 is fixedly connected to the connecting pipe 19, a fixing nut 21 is threadedly connected to the connecting pipe 19, and the fixed block 14 is located between the convex ring 20 and the fixing nut 21.

[0029] After the connecting pipe 19 is installed in the installation groove 16 , the convex ring 20 is pressed against the fixing block 14 , and the fixing nut 21 is spirally moved, the connecting pipe 19 is fixed to the fixing block 14 by the clamping action of the fixing nut 21 and the convex ring 20 .

[0030] One end of the connecting pipe 19 away from the wind collecting hood 17 is fixedly connected to a connecting hose 22, and one end of the connecting hose 22 away from the connecting pipe 19 is fixedly connected to a collecting box 23. The wind collecting hood 17 can be exhausted through the fixing nut 21 and the connecting pipe 19, so that the wind collecting hood 17 can always collect the welding smoke generated by the welding gun 15. The connecting hose 22 is movably installed on the robot arm by snapping.

[0031] The robotic arm is arranged on the workbench 1, and is used for performing multi-position adjustment on the fixed block 14. The robotic arm includes a fixed base 7 fixedly connected to the workbench 1, a second motor 8 fixedly connected to the fixed base 7, the output shaft of the second motor 8 is fixedly connected to the first arm body 9, a third motor 10 is installed on the first arm body 9, the output shaft of the third motor 10 is installed on the second arm body 11, a fourth motor 12 is installed on the second arm body 11, the output shaft of the fourth motor 12 is fixedly connected to the third arm body 13, and one end of the third arm body 13 is fixedly connected to the fixed block 14.

[0032] The first arm 9 is driven to swing by the output shaft of the second motor 8, the second arm 11 is driven to rotate by the output shaft of the third motor 10, and the third arm 13 is driven to rotate by the output shaft of the fourth motor 12. The fixed block 14 can be displaced at multiple points, so that the welding gun 15 on the fixed block 14 can perform welding on multiple surfaces such as the front, top, and bottom.

[0033] The moving component is arranged below the workbench 1, and is used for performing multi-point displacement of the workbench 1. The moving component includes a control seat 2, on which a first motor 3 is mounted, and a slide groove 4 is provided on the control seat 2. The output shaft of the first motor 3 is fixedly connected with a screw rod 5, and the screw rod 5 is rotatably connected in the slide groove 4. A slider 6 is threadedly connected to the screw rod 5, and the top end of the slider 6 is fixedly connected to the workbench 1.

[0034] The output shaft of the first motor 3 drives the lead screw 5 to rotate, so that the slider 6 can move in the slide groove 4 and adjust the position of the workbench 1, so that the welding gun 15 can perform line segment welding.

[0035] Working principle: When welding, the welding gun 15 drives the first arm 9 to swing through the output shaft of the second motor 8, drives the second arm 11 to rotate through the output shaft of the third motor 10, and then drives the third arm 13 to rotate through the output shaft of the fourth motor 12, so that the fixed block 14 can be displaced at multiple points, so that the welding gun 15 on the fixed block 14 can be welded on multiple sides such as the front, top, and bottom, thereby increasing the working space of the welding gun 15 and improving the welding range of the welding gun 15. Since the wind collecting hood 17 and the welding gun 15 are both installed On the fixed block 14, after starting the fan, the fan will exhaust air in the collection box 23 through the exhaust pipe 24, and make the connecting pipe 19 and the connecting hose 22 exhaust air to the air collecting hood 17, so that the welding smoke will be transported to the collection box 23 through the air collecting hood 17, the connecting pipe 19, and the connecting hose 22, and discharged into the factory exhaust duct through the exhaust pipe 24, so that the welding smoke can be centrally collected and purified before being discharged, and the air collecting hood 17 can carry out targeted suction on the welding surface of the welding gun 15 to avoid the dispersion of welding smoke and ensure the collection effect of welding smoke.

[0036] It should be noted that, in this article, the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model; the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "fixed", "installed", "connected", and "connected" should be understood in a broad sense. For example, "installed" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a mechanical connection or an electrical connection; "connected" can be a direct connection, an indirect connection through an intermediate medium, or a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A robotic arm automatic welding device, characterized in that: include: A workbench (1), wherein a collection box (23) is fixedly connected to the workbench (1), an exhaust pipe (24) is fixedly connected to the collection box (23), and a fan is installed in the exhaust pipe (24); A fixed block (14), a welding gun (15) being mounted on the fixed block (14), a wind collecting hood (17) being detachably mounted on the fixed block (14), and the wind collecting hood (17) being connected to a collecting box (23); A mechanical arm, arranged on the workbench (1), for performing multi-position adjustment on the fixed block (14); The moving component is arranged below the workbench (1) and is used to perform multi-point displacement on the workbench (1).

2. The robot arm automatic welding device according to claim 1, characterized in that: The fixing block (14) is provided with a mounting groove (16), the wind collecting cover (17) is fixedly connected with a connecting pipe (19), and the connecting pipe (19) is inserted into the mounting groove (16), the wind collecting cover (17) is provided with an opening groove (18), the connecting pipe (19) is fixedly connected with a convex ring (20), the connecting pipe (19) is threadedly connected with a fixing nut (21), and the fixing block (14) is located between the convex ring (20) and the fixing nut (21).

3. The robot arm automatic welding device according to claim 2, characterized in that: One end of the connecting pipe (19) away from the wind collecting hood (17) is fixedly connected to a connecting hose (22), and one end of the connecting hose (22) away from the connecting pipe (19) is fixedly connected to a collecting box (23).

4. The robot arm automatic welding device according to claim 1, characterized in that: The mechanical arm comprises a fixing seat (7) fixedly connected to the workbench (1), a second motor (8) fixedly connected to the fixing seat (7), the output shaft of the second motor (8) fixedly connected to the first arm body (9), the first arm body (9) is equipped with a third motor (10), the output shaft of the third motor (10) is equipped with the second arm body (11), the second arm body (11) is equipped with a fourth motor (12), the output shaft of the fourth motor (12) is fixedly connected to the third arm body (13), and one end of the third arm body (13) is fixedly connected to the fixing block (14).

5. The robot arm automatic welding device according to claim 1, characterized in that: The moving assembly comprises a control seat (2), a first motor (3) is mounted on the control seat (2), a slide groove (4) is provided on the control seat (2), a screw rod (5) is fixedly connected to the output shaft of the first motor (3), and the screw rod (5) is rotatably connected in the slide groove (4), a slider (6) is threadedly connected to the screw rod (5), and the top end of the slider (6) is fixedly connected to the workbench (1).

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