Industrial welding mechanical arm for multi-angle welding

Abstract

The utility model relates to an industrial welding mechanical arm for multi-angle welding, which belongs to the field of welding equipment and comprises a base and a mechanical arm arranged on the base, a welding gun is arranged at the output end of the mechanical arm, a connecting wire used for connecting a welding machine is arranged at the rear end of the welding gun, and a plurality of air pipes distributed in an annular array are arranged on the outer side of the welding gun. All the air pipes are converged through the smoke pipe, the smoke pipe and the connecting wire are converged through the mounting barrel, the mounting barrel is detachably mounted at the output end of the mechanical arm through a mounting frame, the mechanical arm is provided with a filtering and exhausting mechanism communicated with the smoke pipe, the filtering and exhausting mechanism comprises an air bellow, one end of the air bellow is communicated with the smoke pipe, and the other end of the air bellow is communicated with a fan; and a filter bag is arranged between the air inlet and the air outlet of the air bellow. According to the utility model, the plurality of gas pipes distributed around the welding gun are arranged, so that the effect of multi-point gas extraction close to a smoke generation source is realized, and the effect of rapid smoke removal in the welding process is realized.

Description

Technical Field

[0001] The utility model belongs to the field of welding equipment, and in particular relates to an industrial welding mechanical arm for multi-angle welding. Background Art

[0002] The welding robot arm is a highly automated equipment used for welding processing. Its main components include a base or guide rail, a robot arm and a welding mechanism. The existing welding robot arm mainly uses a multi-axis robot arm to carry a welding gun to move to achieve the function of multi-angle automatic welding.

[0003] Since a large amount of smoke is generated during the welding process, the existing welding robot arm will be provided with a suction mechanism surrounding the outside of the workpiece to be welded on the periphery of its base or guide rail to remove the smoke and facilitate observation of the weld. However, there is a moving distance between the surrounding suction mechanism and the smoke generating source, resulting in the smoke spreading before being collected, and the source of the smoke will move with the movement of the welding gun, so the diffusion of the smoke is irregular and has a large range, resulting in the smoke removal effect achieved by the surrounding suction mechanism having a lag, and the inhaled airflow is mixed with a large amount of air in addition to the smoke, resulting in a slow smoke removal speed and low efficiency. In view of the above problems, the utility model provides an industrial welding robot arm for multi-angle welding. Utility Model Content

[0004] The purpose of the utility model is to provide an industrial welding robot arm for multi-angle welding in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] The utility model provides an industrial welding mechanical arm for multi-angle welding, comprising a base and a mechanical arm arranged on the base, a welding gun is arranged at the output end of the mechanical arm, and a wiring for connecting a welding machine is arranged at the rear end of the welding gun, a plurality of air pipes distributed in a circular array are arranged on the outside of the welding gun, all the air pipes are converged through a smoke pipe, the smoke pipe and the wiring are converged through a mounting tube, the mounting tube is detachably mounted on the output end of the mechanical arm through a mounting frame, and a filtering exhaust mechanism connected to the smoke pipe is arranged on the mechanical arm.

[0007] As a further optimization scheme of the utility model, the filtering exhaust mechanism includes a bellows, one end of the bellows is connected to the smoke pipe and the other end is connected to the fan, and a filter bag is provided between the air inlet and the air outlet of the bellows.

[0008] As a further optimization scheme of the utility model, the bellows includes a box body and a detachable side cover, and a plurality of rotatable pressure rods are provided outside the box body for pressing and fixing the side cover and the box body, and a U-shaped positioning frame is provided inside the bellows, and the air inlet bracket of the filter bag is detachably clamped to the positioning frame.

[0009] As a further optimization solution of the utility model, an air distribution plate with a grid structure is provided between the air outlet of the bellows and the filter bag.

[0010] As a further optimization solution of the utility model, the smoke pipe adopts a retractable hose.

[0011] The beneficial effects of the utility model are:

[0012] 1. The industrial welding robot arm is provided with an air pipe that can move synchronously with the welding gun. During the welding process, the smoke generated at the nozzle of the welding gun can be drawn into the air pipe before it spreads over a large range. In addition, since the air pipe is close to the source of the smoke, the proportion of smoke in the pumped gas is large and the proportion of air is small, thereby achieving the effect of efficient smoke removal and solving the problems mentioned in the background technology.

[0013] 2. The industrial welding robot arm is equipped with a structure in which multiple air pipes surround the welding gun. On the one hand, it realizes the effect of multi-point exhaust, which can cover the smoke diffused in different directions and has a better smoke removal effect. On the other hand, multiple small-sized air pipes are distributed around the welding gun so that the volume of the whole formed by the welding gun and the air pipe will not be too large, which is convenient for the whole formed by the air pipe and the welding gun to be close to the welding part to be welded in a narrow space, which is conducive to retaining the flexibility of the welding gun.

[0014] 3. The industrial welding robot arm achieves the effect of filtering and discharging the smoke after collecting it through the cooperation of bellows, filter bags and fans, which can avoid the spread of harmful substances in the smoke and is beneficial to maintaining the processing environment. The filter bags can be disassembled and cleaned to maintain the filtering effect for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall appearance of the utility model;

[0016] Figure 2 It is a schematic diagram of the coordination of the bellows, air pipe, and welding gun;

[0017] Figure 3 This is a schematic diagram of the internal structure of the bellows.

[0018] In the figure: 1. base; 2. mechanical arm; 3. mounting frame; 4. mounting tube; 5. welding gun; 6. air pipe; 7. smoke pipe; 8. wiring; 9. bellows; 10. pressure rod; 11. positioning frame; 12. filter bag; 13. air distribution plate. DETAILED DESCRIPTION

[0019] The present application is described in further detail below. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0020] Example 1

[0021] like Figure 1-3 As shown, the industrial welding robot arm for multi-angle welding of this embodiment includes a base 1 and a robot arm 2 arranged on the base 1, a welding gun 5 is provided at the output end of the robot arm 2 and a wiring 8 for connecting to a welding machine is provided at the rear end of the welding gun 5, a plurality of air pipes 6 distributed in a circular array are provided on the outside of the welding gun 5, all the air pipes 6 are converged through a smoke pipe 7, the smoke pipe 7 and the wiring 8 are converged through a mounting tube 4, the mounting tube 4 is detachably mounted on the output end of the robot arm 2 through a mounting frame 3, and a filtering exhaust mechanism connected to the smoke pipe 7 is provided on the robot arm 2.

[0022] When using this industrial welding robot arm, multiple air pipes 6 surround the welding gun 5 and move synchronously with the welding gun 5. After the filtering exhaust mechanism is turned on, the smoke generated during the welding process of the welding gun 5 can be immediately sucked into the filtering exhaust mechanism through the air pipe 6 and the smoke pipe 7, and the smoke is discharged after filtering. By adjusting the position where the mounting tube 4 is clamped by the mounting frame 3, the distance between the nozzle of the welding gun 5 and the output end of the robot arm 2 can be changed, so that the whole formed by the welding gun 5 and the air pipe 6 can extend into the interior of the workpiece to be welded.

[0023] The filtering and exhaust mechanism includes a bellows 9, one end of which is connected to the smoke pipe 7 and the other end is connected to a fan. A filter bag 12 is provided between the air inlet and the air outlet of the bellows 9. The airflow can be filtered in the process of passing through the filter bag 12, and the filtered dust is accumulated in the filter bag 12.

[0024] The bellows 9 includes a box body and a detachable side cover, and a plurality of rotatable pressure rods 10 are provided outside the box body for pressing and fixing the side cover to the box body. A U-shaped positioning frame 11 is provided inside the bellows 9, and the air inlet bracket of the filter bag 12 is detachably connected to the positioning frame 11. When in use, the pressure rod 10 is fitted with the outer wall of the side cover of the bellows 9, and the pressure rod 10 is rotated to be disengaged from the side cover of the bellows 9, and then the side cover is removed, and then the filter bag 12 can be pulled out horizontally, which is convenient for cleaning the dust accumulated in the filter bag 12 to effectively maintain the filtering effect for a long time.

[0025] An air distribution plate 13 with a grid structure is provided between the air outlet of the bellows 9 and the filter bag 12. The air distribution plate 13 helps the airflow in the bellows 9 to be evenly gathered to the air outlet, so that the airflow can pass through various parts of the filter bag 12, and the filtering efficiency is higher.

[0026] The smoke pipe 7 is a retractable hose, which can be retracted and expanded along with the deformation of the robot arm 2, so that the smoke pipe 7 can adapt to the movement of the robot arm 2 and is not easy to be entangled on the robot arm 2, and is safer to use.

[0027] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. An industrial welding robot arm for multi-angle welding, comprising a base (1) and a robot arm (2) arranged on the base (1), characterized in that: The output end of the mechanical arm (2) is provided with a welding gun (5), and the rear end of the welding gun (5) is provided with a wiring (8) for connecting to a welding machine. The outer side of the welding gun (5) is provided with a plurality of air pipes (6) distributed in a ring array. All the air pipes (6) are converged through a smoke pipe (7). The smoke pipe (7) and the wiring (8) are converged through a mounting tube (4). The mounting tube (4) is detachably mounted on the output end of the mechanical arm (2) through a mounting frame (3). The mechanical arm (2) is provided with a filtering exhaust mechanism connected to the smoke pipe (7).

2. The industrial welding robot arm for multi-angle welding according to claim 1, characterized in that: The filtering and exhaust mechanism comprises a bellows (9), one end of the bellows (9) is connected to the smoke pipe (7) and the other end is connected to a fan, and a filter bag (12) is provided between the air inlet and the air outlet of the bellows (9).

3. The industrial welding robot arm for multi-angle welding according to claim 2 is characterized in that: The bellows (9) comprises a box body and a detachable side cover, and a plurality of rotatable pressure rods (10) are provided outside the box body for pressing and fixing the side cover and the box body, and a U-shaped positioning frame (11) is provided inside the bellows (9), and an air inlet bracket of the filter bag (12) is detachably connected to the positioning frame (11).

4. The industrial welding robot arm for multi-angle welding according to claim 2, characterized in that: An air distribution plate (13) having a grid structure is provided between the air outlet of the wind box (9) and the filter bag (12).

5. The industrial welding robot arm for multi-angle welding according to claim 1, characterized in that: The smoke pipe (7) is a retractable hose.

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