Dust removal device of gantry type welding robot

Abstract

The utility model provides a dust removal device of a gantry type welding robot, which relates to the technical field of welding dust removal and comprises a top suction plate and dust removal equipment which are arranged on a gantry frame, the top suction plate is arranged on the top of a welding mechanical arm of the portal frame, and a suction opening is formed in a plate body. An arc blocking curtain is hung on the periphery of the edge of the top suction plate and encloses work moving spaces of all the welding mechanical arms on the portal frame together. And the dust removal equipment is communicated with the suction opening through a pipeline, and is used for sucking air from the enclosure area of the arc blocking curtain through the suction opening and removing welding fume carried in air flow. The whole dust removal equipment does not need to move along with the welding mechanical arm during welding work and is fixedly arranged on the portal frame, the arrangement structure is simple, the cost is low, the welding mechanical arm is surrounded in a small semi-closed space for unified dust collection, the dust collection effect is good, and the final dust removal effect is good.

Description

Technical Field

[0001] This utility model relates to the field of welding dust removal technology, and more specifically, to a dust removal device for a gantry welding robot. Background Technology

[0002] With the rapid development of my country's manufacturing industry, the proportion of welding in industrial processing has been continuously expanding. Robotic welding boasts high precision and efficiency, and its application is becoming increasingly widespread. However, prolonged high-efficiency welding work generates a large amount of welding fumes. The diverse movement paths of welding robots make fume collection difficult. If dust is not removed in time, it will affect welding quality, and welding fumes pose significant health risks.

[0003] There are two existing solutions: One is to seal or semi-seal the entire robotic welding workshop, collecting the fumes and dust generated by the robots during operation through top or side suction in the sealed area, and then ducting them into a cartridge dust collector for unified purification. This solution requires the dust collection device to travel a considerable distance to collect the fumes from each robot, resulting in low collection efficiency and poor dust removal. The other solution involves installing a dust hood at each welding robot's welding torch, collecting the fumes and dust generated by the robots during operation through top or side suction. This solution requires a custom-fitted, follow-along dust hood for each welding robot, along with corresponding ductwork, resulting in complex dust collection equipment and higher investment costs. Utility Model Content

[0004] The problem solved by this invention is how to make the dust removal device of the gantry welding robot low in cost and with good dust removal effect.

[0005] To address the aforementioned problems, this utility model provides a dust removal device for a gantry welding robot, comprising a top suction plate and a dust removal device mounted on the gantry frame. The top suction plate is positioned on top of the welding robotic arm of the gantry frame, and an exhaust port is provided on the plate. An arc-blocking curtain is suspended around the edge of the top suction plate, which encloses the working space of all welding robotic arms on the gantry frame. The dust removal device is connected to the exhaust port via a pipe, and is used to draw air from the area enclosed by the arc-blocking curtain through the exhaust port, removing welding fumes carried in the airflow.

[0006] Optionally, the top suction plate and the arc-blocking curtain form a cuboid space with an open bottom surface, and the two enclosure surfaces arranged laterally along the gantry frame are both vertical roller shutter structures.

[0007] Optionally, the top suction plate is a horizontally arranged rectangular plate, set between two vertical beams of the gantry frame, and its height does not exceed the bottom surface of the crossbeam of the gantry frame.

[0008] Optionally, the exhaust vents are arranged in a row on each side of the crossbeam of the gantry, and the exhaust vents in each row are evenly spaced along the transverse direction of the gantry.

[0009] Optionally, the dust removal device of the gantry welding robot also includes a first main pipe, one end of which is connected to the air inlet of the dust removal equipment, and the other end is a stepped pipe with a gradually decreasing diameter and a closed port; different diameter sections of the first main pipe are respectively connected to the exhaust port on one side of the crossbeam.

[0010] Optionally, each section of the first main pipe with a different diameter is provided with a first secondary pipe to connect with the corresponding exhaust port, and the diameter and length of each first secondary pipe are the same.

[0011] Optionally, the stepped tubular section of the first main pipe is arranged transversely along the gantry and at the top of one of the exhaust outlets; the first secondary pipe is arranged vertically.

[0012] Optionally, two dust removal devices are provided, with each row of exhaust vents connected to one of the dust removal devices.

[0013] Optionally, the dust removal device of the gantry welding robot also includes a support platform, which is set on a vertical beam of the gantry frame and is used to place the dust removal equipment.

[0014] Optionally, the top suction plate has a window hole for avoiding the hanging frame lifting body; a bellows cover is respectively installed on both sides of the hanging frame lifting body for sealing inside the window hole.

[0015] The beneficial effects of the dust removal device for the gantry welding robot of this utility model are as follows: A semi-enclosed space is formed above and around the welding robot arm using a top suction plate and an arc-blocking curtain. The welding fumes are confined within this space, and the fumes are carried away by airflow through the exhaust vents on the top suction plate, thus achieving dust removal. The entire dust removal device does not need to move with the welding robot arm when it moves relative to the gantry for welding work. It is fixedly mounted on the gantry and can move with it, resulting in a simple and low-cost structure. Furthermore, by enclosing the welding robot arm in a small, semi-enclosed space for unified dust collection, the dust collection effect is excellent, leading to a superior dust removal effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the gantry welding robot to which this utility model applies.

[0018] Figure 3 This is a schematic diagram of the top suction plate structure of this utility model.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Top suction plate; 11. Exhaust vent; 12. Window opening; 13. Accordion cover; 2. Curtain; 21. Curtain slats; 22. Track; 23. Roller; 24. Drive system; 3. Dust removal equipment; 31. Support platform; 41. First main pipe; 42. First auxiliary pipe; 43. Second auxiliary pipe; 44. Second main pipe; 51. Gantry frame; 511. Vertical beam; 512. Horizontal beam; 52. Welding robotic arm; 53. Longitudinal ground rail; 54. Hanging frame lifting body. Detailed Implementation

[0021] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Although some embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this utility model. It should be understood that the drawings and embodiments of this utility model are for illustrative purposes only and are not intended to limit the scope of protection of this utility model.

[0022] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first," "second," etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0023] It should be noted that the terms "one" and "multiple" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0024] like Figure 1-3As shown in the figure, the dust removal device for a gantry welding robot provided in this embodiment of the present invention includes a top suction plate 1 and a dust removal device 3 installed on the gantry frame 51; the top suction plate 1 is installed on the top of the welding robotic arm 52 of the gantry frame 51, and an exhaust port 11 is provided on the plate body; an arc-blocking curtain 2 is suspended around the edge of the top suction plate 1, which together encloses the working movement space of all welding robotic arms 52 on the gantry frame 51; the dust removal device 3 is connected to the exhaust port 11 through a pipe, and is used to draw air from the area enclosed by the arc-blocking curtain 2 through the exhaust port 11 and remove the welding fumes carried in the airflow.

[0025] This dust collection device uses a top suction plate 1 paired with an arc-blocking curtain 2 to collect welding fumes. Specifically, the top suction plate 1 is positioned directly above the working area of ​​the welding robot arm 52, and an arc-blocking curtain 2 is suspended around the edge of the top suction plate 1. This creates a semi-enclosed space above and around the welding robot arm 52, confining the welding fumes within this space. Air is drawn away through the exhaust vents 11 on the top suction plate 1, allowing the fumes to be removed by the dust collection equipment 3. The entire dust collection system does not need to move with the welding robot arm 52 during welding operations; it is fixedly mounted on the gantry 51. This simple and low-cost arrangement, combined with the effective dust collection within a small, semi-enclosed space, results in a superior dust collection and ultimately a better dust removal effect.

[0026] Optionally, the top suction plate 1 and the arc-blocking curtain 2 form a cuboid space with an open bottom surface, and the two enclosure surfaces arranged laterally along the gantry frame 51 are both vertical roller shutter structures.

[0027] The arc-blocking curtain 2 typically extends downwards to the bottom of the workpiece to be welded, completely obscuring it during welding. When the gantry 51 moves along the longitudinal ground rail 53, the two roller shutter-structured enclosure surfaces (i.e., the two arc-blocking curtain 2 surfaces arranged laterally) are rolled up to prevent collision and interference with the workpiece. Alternatively, the other two enclosure surfaces can also be designed as roller shutter structures, allowing the enclosure area to be fully opened for easy observation. The transverse direction of the gantry 51 refers to the length direction of the crossbeam 512, and the longitudinal direction refers to the horizontal direction perpendicular to the crossbeam 512. For ease of description, the transverse direction in the following text refers to the transverse direction of the gantry 51, and the longitudinal direction refers to the longitudinal direction of the gantry 51.

[0028] The specific structure of the roller blind is as follows: Figure 3As shown, the roller blind 2 includes a curtain slat 21, a track 22, a roller 23, a drive system 24, and a control system. The curtain slat 21 can move vertically up and down along the track 22 to achieve the opening and closing function. The track 22 supports and guides the movement of the curtain slat 21, and there are two tracks, with their top ends fixed to the top suction plate 1. The roller 23 is the part where the curtain slat 21 is wound, and it is horizontally set on the top suction plate 1. The drive system 24 is usually driven by a motor and is responsible for the lifting and lowering movement of the curtain slat 21. The control system can control the rapid opening and closing of the curtain slat 21 according to commands. The optimal control method for the roller blind structure is automatic control, but manual control is also possible.

[0029] Optionally, such as Figure 1 and Figure 3 As shown, the top suction plate 1 is a horizontally arranged rectangular plate, with one pair of edges along the longitudinal direction of the gantry frame 51 and the other pair of edges along the transverse direction of the gantry frame 51. Specifically, it is fixed to the inner side of the two vertical beams 511 of the gantry frame 51, and its height does not exceed the bottom surface of the horizontal beam 512 of the gantry frame 51, with the plate extending to both sides of the horizontal beam 512.

[0030] The structure of the ceiling suction panel 1 can be composed of a frame and multiple splicing panel units. The frame structure has high strength and is easy to fix and connect. The top surface of the frame structure consists of multiple unit frames that are compatible with the splicing panel units. The ceiling suction panel 1 can be formed by placing the splicing panel into the frame and fixing it, similar to the splicing ceiling structure in home decoration.

[0031] Optionally, such as Figure 1 As shown, there is a row of exhaust vents 11 on each side of the crossbeam 512 of the gantry frame 51, and the exhaust vents 11 in each row are evenly spaced along the transverse direction of the gantry frame 51.

[0032] The dust removal device of this gantry welding robot is suitable for applications such as... Figure 2 As shown, there are two welding robotic arms 52 on both sides of the bottom of the crossbeam 512. Correspondingly, there is a row of exhaust vents 11 on each side of the crossbeam 512 of the gantry frame 51, with each row serving one welding robotic arm 52. There are two rows of exhaust vents 11, and the multiple exhaust vents 11 in each row are evenly spaced, which can generate a relatively uniform suction force in the lateral direction. This ensures that the welding robotic arm 52 has a better dust collection effect when it moves laterally along the crossbeam 512 to different positions as the hanging frame lifting body 54 moves laterally.

[0033] In addition, each row of exhaust vents 11 can be located at n+1 equally spaced points along the horizontal direction of the top suction plate 1, where n is the number of exhaust vents 11 in each row. This further ensures that the exhaust vents 11 are evenly distributed horizontally. Figure 1 As shown, there are three exhaust vents 11 in each row. In the horizontal direction, each exhaust vent 11 is located at one of the four equal points of the horizontal width of the top suction plate 1. In the vertical direction, they are vertically aligned with the center of the working range of the bottom welding robot arm 52, and are arranged evenly and reasonably.

[0034] Optionally, such as Figure 1 As shown, the dust removal device of the gantry welding robot also includes a first main pipe 41. One end of the first main pipe 41 is connected to the air inlet of the dust removal equipment 3, and the other end is a stepped pipe with a gradually decreasing diameter and a closed port. Different diameter sections of the first main pipe 41 are respectively connected to the exhaust ports 11 on one side of the crossbeam 512. The number of different diameter sections of the first main pipe 41 is the same as the number of exhaust ports 11 on the corresponding side.

[0035] To ensure balanced suction at each of the 11 exhaust vents, the ductwork employs a necking structure; specifically, the pipe section furthest from the dust collector 3 has a smaller diameter, while the pipe section closest to it has a larger diameter. Figure 1 As shown, the three exhaust vents 11 correspond to three sections of the first main pipe 41 with different diameters.

[0036] Optionally, each section of the first main pipe 41 with a different diameter is provided with a first secondary pipe 42 to connect with the corresponding exhaust port 11; the diameter and length of each first secondary pipe 42 are the same, and the suction force is not adjusted.

[0037] Optionally, the stepped tubular section of the first main duct 41 is arranged transversely along the gantry 51 at the top of a row of exhaust vents 11; the first auxiliary ducts 42 are all arranged vertically. The main body of the stepped tubular section of the first main duct 41 is fixed to the top suction plate 1 by a bracket, facilitating connection between the first auxiliary ducts 42 and the exhaust vents 11. In addition, each exhaust vent 11 can be equipped with an inverted funnel-shaped suction hood to facilitate air intake from below.

[0038] Similarly, such as Figure 1 As shown, the exhaust port 11 on the other side of the crossbeam 512 is connected to the second main pipe 44 through the second auxiliary pipe 43. The second main pipe 44 is similar in structure to the first main pipe 41. One end of the second main pipe 44 is connected to the air inlet of the dust removal equipment 3, and the other end is a stepped pipe with a gradually decreasing diameter and a closed port. Different diameter sections of the second main pipe 44 are connected to the exhaust ports 11 on the other side of the crossbeam 512 one by one.

[0039] In addition, each section of the second main pipe 44 with a different diameter is provided with a second auxiliary pipe 43, which connects to the corresponding exhaust port 11; the diameter and length of each second auxiliary pipe 43 are the same. The stepped tubular section of the second main pipe 44 is arranged transversely along the gantry 51 at the top of another row of exhaust ports 11; the second auxiliary pipes 43 are all arranged vertically.

[0040] Optionally, such as Figure 1As shown, there are two dust removal devices 3, with each row of exhaust vents 11 connected to one dust removal device 3. The two dust removal devices 3 work together, resulting in higher dust removal efficiency. In addition, the two welded robotic arms 52 on both sides of the bottom of the crossbeam 512 can work independently, allowing the dust removal system to also operate independently.

[0041] Optionally, the dust removal device of the gantry welding robot also includes a support platform 31, which is mounted on a vertical beam 511 of the gantry frame 51 and is used to house the dust removal equipment 3. The support platform 31 is located on the outer side of the middle of the vertical beam 511, facilitating worker access.

[0042] Optionally, such as Figure 3 As shown, the top suction plate 1 has a window hole 12, which is used to avoid the hanging frame lifting body 54; a bellows cover 13 is provided on both sides of the hanging frame lifting body 54 inside the window hole 12 for sealing.

[0043] The lifting body 54 is movably mounted on the crossbeam 512, and a welding robotic arm 52 is installed at its bottom, enabling vertical and horizontal movement of the welding robotic arm 52. The window opening 12 is a rectangular opening with its long side along the horizontal direction. One lifting body 54 passes through the window opening 12 and through the top suction plate 1, thus achieving a relatively large range of vertical adjustment. A bellows cover 13 is installed in each of the two window openings 12. Both bellows covers 13 are retractable, with one end moving with the lifting body 54 and the other end fixed, achieving a certain degree of sealing during movement. Additionally, to accommodate two welding robotic arms 52, one window opening 12 is provided on each side of the crossbeam 512.

[0044] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. A dust removal device for a gantry welding robot, characterized in that, Includes a top suction plate (1) and a dust removal device (3) installed on the gantry (51); The top suction plate (1) is set on the top of the welding robot arm (52) of the gantry frame (51), and the plate body is provided with an exhaust port (11); an arc-blocking curtain (2) is suspended around the edge of the top suction plate (1), and the arc-blocking curtain (2) encloses the working movement space of all welding robot arms (52) on the gantry frame (51). The dust removal device (3) is connected to the exhaust port (11) through a pipe, and is used to draw air from the area enclosed by the arc-blocking curtain (2) through the exhaust port (11) and remove the welding fumes carried in the airflow.

2. The dust removal device for the gantry welding robot according to claim 1, characterized in that, The top suction plate (1) and the arc-blocking curtain (2) form a rectangular space with an open bottom surface, and the two enclosure surfaces arranged horizontally along the gantry frame (51) are both vertical roller blind structures.

3. The dust removal device for the gantry welding robot according to claim 2, characterized in that, The top suction plate (1) is a horizontally arranged rectangular plate, which is set between the two vertical beams (511) of the gantry frame (51) and its height does not exceed the bottom surface of the crossbeam (512) of the gantry frame (51).

4. The dust removal device for the gantry welding robot according to claim 1, characterized in that, The exhaust vents (11) are arranged in a row on each side of the crossbeam (512) of the gantry frame (51), and the exhaust vents (11) in each row are evenly spaced along the transverse direction of the gantry frame (51).

5. The dust removal device for the gantry welding robot according to claim 4, characterized in that, It also includes a first main pipe (41), one end of which is connected to the air inlet of the dust removal equipment (3), and the other end is a stepped pipe with a gradually decreasing diameter and a closed port; different diameter sections of the first main pipe (41) are respectively connected to the exhaust port (11) on one side of the crossbeam (512).

6. The dust removal device for the gantry welding robot according to claim 5, characterized in that, Each section of the first main pipe (41) with a different diameter is provided with a first secondary pipe (42) to connect with the corresponding exhaust port (11). The diameter and length of each first secondary pipe (42) are the same.

7. The dust removal device for the gantry welding robot according to claim 6, characterized in that, The stepped tubular section of the first main pipe (41) is arranged horizontally along the gantry (51) at the top of a row of exhaust ports (11); the first secondary pipe (42) is arranged vertically.

8. The dust removal device for the gantry welding robot according to claim 4, characterized in that, The dust removal device (3) is provided in two, and the exhaust port (11) in each row is connected to one of the dust removal devices (3).

9. The dust removal device for the gantry welding robot according to claim 1, characterized in that, It also includes a support platform (31), which is set on a vertical beam (511) of the gantry (51) for placing the dust removal equipment (3).

10. The dust removal device for the gantry welding robot according to claim 7, characterized in that, The top suction plate (1) has a window hole (12) for avoiding the hanging frame lifting body (54); a bellows cover (13) is provided on both sides of the hanging frame lifting body (54) for sealing.

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