Automobile frame welding robot

Abstract

The utility model relates to the field of welding robots, and specifically discloses an automobile frame welding robot, which comprises a welding robot main body, a second mechanical arm is arranged at the upper end position of the welding robot main body, a welding head is installed at the end of the second mechanical arm, a smoke exhaust mechanism is arranged above the welding head at the outer side end of the second mechanical arm, and the smoke exhaust mechanism comprises: a swing support and a smoke dust suction pipe; a rotating shaft is installed between the smoke dust suction pipe and the swing support; a rotating motor is connected between the other end of the swing support and the second mechanical arm through the rotating shaft; and a flexible pipeline is connected between the air suction mechanism and the smoke dust suction pipe. When the orientation of the welding head changes during work and the smoke dust suction pipe cannot be well adsorbed, the rotating motor can be used to drive the swing support to rotate at the end position of the second mechanical arm, so that the orientation position of the swing support is changed again, and the smoke dust suction pipe can be conveniently adsorbed to smoke.

Description

Technical Field

[0001] This utility model relates to the field of welding robots, specifically an automotive frame welding robot. Background Technology

[0002] Robotic welding was once a welding technology exclusive to the automotive industry, but now it is widely used in various industrial fields. Robotic welding has many advantages, but it also brings many challenges, one of which is the problem of welding fume extraction. A welding robot is an articulated device equipped with a movable arm, belonging to articulated robots. The movable arm is usually mounted on a programmable axis and moves and adjusts its trajectory according to welding needs. After being programmed, the welding robot can automatically execute commands without much human intervention. During the welding process, a lot of harmful metallic fumes are generated, and extraction should be carried out as close as possible to the source of the fumes.

[0003] However, when the welding workshop of the robot is not equipped with fume extraction equipment, the direct emission of welding fumes and impurities can easily lead to health problems for the users. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an automotive frame welding robot, which solves the problems mentioned in the background.

[0005] This utility model provides the following technical solution: an automotive frame welding robot, comprising a welding robot body, a second robotic arm disposed at the upper end of the welding robot body, a welding gun end mounted at the end of the second robotic arm, and a fume extraction mechanism disposed above the welding gun end at the outer end of the second robotic arm. The fume extraction mechanism comprises: a swing bracket and a fume absorption pipe, a rotating shaft being installed between the fume absorption pipe and the swing bracket, a rotating motor being connected to the other end of the swing bracket and the second robotic arm via the rotating shaft, a suction mechanism being installed on the upper surface of the second robotic arm, and a flexible pipe being connected between the suction mechanism and the fume absorption pipe.

[0006] As a further embodiment of this utility model: a limiting gear is installed at one end of the rotating shaft on the side surface of the dust absorption tube, and a locking rod is installed above the limiting gear on the side surface of the dust absorption tube.

[0007] As a further embodiment of this utility model: a rotating base is provided below the main body of the welding robot, and a first robotic arm is connected between the rotating base and the second robotic arm.

[0008] As a further embodiment of this utility model: the dust absorption tube is fixedly connected to the rotating shaft, and the limiting gear is fixedly connected to the rotating shaft.

[0009] As a further improvement of this utility model: the locking rod is engaged with the limiting gear, and a spring is connected between the locking rod and the swing bracket.

[0010] As a further improvement of this utility model, the smoke and dust absorption pipe is connected to the suction mechanism through the flexible pipe.

[0011] As a further improvement of this utility model, a filter element is provided inside the suction mechanism.

[0012] As a further embodiment of this invention: the second robotic arm is movably connected to the first robotic arm, and the first robotic arm is rotatably connected to the rotating base.

[0013] Compared with the prior art, the beneficial effects of this utility model are: When the orientation of the welding torch tip changes during operation, causing the smoke absorption tube to fail to adsorb smoke effectively, a rotating motor can be used to drive the swing bracket to rotate at the end of the second robotic arm. This changes the orientation of the swing bracket, facilitating the adsorption of smoke by the smoke absorption tube.

[0014] The orientation of the dust absorption tube above the welding gun end is controlled by rotating the entire dust absorption tube on the outer side of the swing bracket via the outer pivot. The orientation of the dust absorption tube is then fixed by releasing the force on the locking rod and controlling the locking rod to engage with the limit gear. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of an automotive frame welding robot; Figure 2 This is a side view of the main body of a welding robot in an automobile frame welding robot. Figure 3 This is a top view of the main body of a welding robot for automobile frames. Figure 4 This is an enlarged schematic diagram of the welding gun tip in an automotive frame welding robot. Figure 5 This is a schematic diagram of the smoke exhaust mechanism in an automotive frame welding robot.

[0016] In the diagram: 1. Main body of the welding robot; 2. Rotating base; 3. First robotic arm; 4. Second robotic arm; 5. Welding gun tip; 6. Fume exhaust mechanism; 601. Swinging bracket; 602. Limiting gear; 603. Clamping rod; 604. Fume absorption pipe; 605. Rotating motor; 606. Flexible pipe; 607. Suction mechanism; 608. Rotating shaft. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figure 1-5 As shown, this embodiment provides an automotive frame welding robot, including a welding robot body 1. A second robotic arm 4 is disposed at the upper end of the welding robot body 1. A welding gun end head 5 is installed at the end of the second robotic arm 4. A fume extraction mechanism 6 is disposed above the welding gun end head 5 at the outer end of the second robotic arm 4. The fume extraction mechanism 6 includes: a swing bracket 601 and a fume absorption pipe 604. A rotating shaft 608 is installed between the fume absorption pipe 604 and the swing bracket 601. The fume absorption pipe 604 and the rotating shaft 608 are fixedly connected. A rotating motor 605 is connected between the other end of the swing bracket 601 and the second robotic arm 4 through the rotating shaft. A suction mechanism 607 is installed on the upper surface of the second robotic arm 4. A filter element is disposed inside the suction mechanism 607. A flexible pipe 606 is connected between the suction mechanism 607 and the fume absorption pipe 604. The fume absorption pipe 604 is connected to the suction mechanism 607 through the flexible pipe 606.

[0019] like Figure 2-3 As shown, in this embodiment, a limiting gear 602 is installed at one end of the rotating shaft 608 on the side surface of the dust absorption pipe 604. The limiting gear 602 is fixedly connected to the rotating shaft 608. A locking rod 603 is installed above the limiting gear 602 on the side surface of the dust absorption pipe 604. The locking rod 603 is locked with the limiting gear 602. A spring is connected between the locking rod 603 and the swing bracket 601. By controlling the overall up and down movement of the locking rod 603, the locking rod 603 and the limiting gear 602 can be adjusted to lock and limit the position, thereby realizing the overall adjustment of the orientation of the dust absorption pipe 604. A rotating base 2 is provided below the welding robot body 1. A first robotic arm 3 is connected between the rotating base 2 and the second robotic arm 4. The second robotic arm 4 is movably connected to the first robotic arm 3, and the first robotic arm 3 is rotatably connected to the rotating base 2.

[0020] The working principle of this utility model is as follows: During use, after the smoke exhaust mechanism 6 is installed above the welding gun end 5 on the outer side of the second robotic arm 4, the clamping rod 603 is first pulled upwards to compress the spring, causing deformation. After disconnecting the deformation of the clamping rod 603 and the limiting gear 602, the smoke absorption pipe 604 is rotated on the outer side of the swing bracket 601 via the outer rotating shaft 608, controlling the orientation of the smoke absorption pipe 604 above the welding gun end 5. Then, by releasing the force on the clamping rod 603, the clamping rod 603 and the limiting gear 602 are engaged, thus fixing the orientation of the smoke absorption pipe 604. During operation, the first robotic arm 3 rotates above the rotating base 2. The second robotic arm 4 is controlled to rotate in conjunction with the first robotic arm 3. The welding gun end 5 at the lower end of the second robotic arm 4 is controlled to make contact with the frame to be welded. At the same time, the suction mechanism 607 works as a whole. The smoke generated during processing is absorbed by the smoke absorption pipe 604 and then guided from the inside of the rotating motor 605 to the inside of the suction mechanism 607, where it is filtered and absorbed by the filter element. If the orientation of the welding gun end 5 changes during operation, causing the smoke absorption pipe 604 to be unable to absorb the smoke effectively, the rotating motor 605 can be used to drive the swing bracket 601 to rotate at the end position of the second robotic arm 4. This changes the orientation of the swing bracket 601, making it easier for the smoke absorption pipe 604 to absorb the smoke.

[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A welding robot for automobile frames, comprising a welding robot body (1), characterized in that, The welding robot body (1) is provided with a second robotic arm (4) at its upper end. The end of the second robotic arm (4) is equipped with a welding gun end (5). The outer end of the second robotic arm (4) is provided with a smoke exhaust mechanism (6) above the welding gun end (5). The smoke exhaust mechanism (6) includes a swing bracket (601) and a smoke absorption pipe (604). A rotating shaft (608) is installed between the smoke absorption pipe (604) and the swing bracket (601). The other end of the swing bracket (601) is connected to the second robotic arm (4) via the rotating shaft and a rotating motor (605). A suction mechanism (607) is installed on the upper surface of the second robotic arm (4). A flexible pipe (606) is connected between the suction mechanism (607) and the smoke absorption pipe (604).

2. The automotive frame welding robot according to claim 1, characterized in that, One end of the rotating shaft (608) is mounted on the side surface of the dust absorption pipe (604) with a limiting gear (602), and a snap-fit ​​rod (603) is mounted above the limiting gear (602) on the side surface of the dust absorption pipe (604).

3. The automotive frame welding robot according to claim 1, characterized in that, A rotating base (2) is provided below the main body (1) of the welding robot, and a first robotic arm (3) is connected between the rotating base (2) and the second robotic arm (4).

4. The automotive frame welding robot according to claim 2, characterized in that, The dust absorption pipe (604) is fixedly connected to the rotating shaft (608), and the limiting gear (602) is fixedly connected to the rotating shaft (608).

5. The automotive frame welding robot according to claim 2, characterized in that, The locking rod (603) engages with the limiting gear (602), and a spring connects the locking rod (603) to the swing bracket (601).

6. The automotive frame welding robot according to claim 1, characterized in that, The dust absorption pipe (604) is connected to the suction mechanism (607) through the flexible pipe (606).

7. The automotive frame welding robot according to claim 1, characterized in that, The suction mechanism (607) is equipped with a filter element inside.

8. The automotive frame welding robot according to claim 3, characterized in that, The second robotic arm (4) is movably connected to the first robotic arm (3), and the first robotic arm (3) is rotatably connected to the rotating base (2).

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