New energy automobile part welding equipment

Abstract

The invention belongs to the technical field of welding equipment, and particularly relates to new energy automobile part welding equipment which comprises a welding table, a welding mechanism and a welding following cleaning mechanism, by arranging the following welding cleaning mechanism, pre-welding cleaning and post-welding cleaning are conducted in real time in the welding process, the characteristic that the interval time between cleaning and welding is short is utilized, on one hand, the welding seam treatment effect is enhanced, the welding quality is improved, on the other hand, rapid collection and utilization of waste heat are achieved, and the utilization efficiency of welding waste heat is improved; compared with related devices for collecting, converting and reutilizing the waste heat of the welding seam in the prior art, the device has the advantages that the time interval between the collection and utilization of the waste heat and the welding is short, so that the collection difficulty, the conversion difficulty and the utilization difficulty caused by waste heat dissipation are effectively avoided.

Description

Technical Field

[0001] This invention belongs to the field of welding equipment technology, specifically a welding equipment for new energy vehicle parts. Background Technology

[0002] Welding, also known as fusion welding, is a key process technology that uses thermal and / or mechanical energy to achieve metallurgical bonding of metallic and thermoplastic polymer materials. In the field of new energy vehicle component manufacturing, welding is a core processing technology, and its process stability directly determines the mechanical properties and safety factor of vehicle body structural components.

[0003] Given that welding involves material melting and phase transformation reactions, slag and weld beads are commonly found in various mainstream welding processes. These metallurgical byproducts are typically distributed on the surface of the weld, affecting not only the surface quality of parts and exacerbating stress concentration in the weld area, but also significantly impacting subsequent coating processes. In automated welding processes, slag removal at high temperatures is usually performed within a specific time window after the welding operation is completed. This effectively avoids the increased cleaning difficulty caused by the increased hardness of the slag upon cooling and also alleviates the stress concentration problem caused by the shrinkage of the slag during cooling.

[0004] In conventional techniques, to clean weld slag at the weld seam, air jetting is often used to cool the weld seam simultaneously. For example, a related patent, CN118635763B, discloses a ring welding device for automotive parts processing. This patent utilizes an air guiding mechanism to accelerate airflow and, through the entrainment effect of the air, not only cools the welding area but also collects the weld slag and fumes generated during welding, thereby improving welding quality. However, in practical applications, it has been found that due to the low cleaning power of the airflow impact, it can only clean weld slag with weak adhesion. However, it is less effective at cleaning weld slag with slightly stronger adhesion or small weld beads generated at the weld seam. Furthermore, due to the rapid cooling of the airflow, the unremoved weld slag and weld beads solidify at the weld seam, especially when the weld seam is long. After welding, the weld seam has completely cooled and solidified, making subsequent processing difficult.

[0005] In view of this, the present invention proposes a welding equipment for new energy vehicle parts to solve the above-mentioned technical problems. Summary of the Invention

[0006] To overcome the shortcomings of existing technologies and solve the aforementioned technical problems, this invention proposes a welding equipment for new energy vehicle parts.

[0007] The technical solution adopted by the present invention to solve its technical problem is: a welding equipment for new energy vehicle parts, comprising a welding table and a welding mechanism and a welding cleaning mechanism installed on the welding table;

[0008] The welding mechanism is used to weld automotive parts. The welding mechanism includes at least a welding torch and a multi-axis robotic arm. The welding torch is fixedly mounted on the multi-axis robotic arm, and the multi-axis robotic arm is used to plan the movement path of the welding torch.

[0009] The on-site welding cleaning mechanism is mounted on a multi-axis robotic arm and is used to clean the weld seam. The on-site welding cleaning mechanism includes:

[0010] A grinding wheel is used to grind and clean the weld seam. The grinding wheel is connected to an external grinding motor to provide rotational power to the grinding wheel.

[0011] A negative pressure pipe is connected to an external suction device. The negative pressure pipe extends to the side of the grinding wheel away from the welding gun. The negative pressure pipe draws in welding slag and welding fumes through negative pressure.

[0012] The grinding wheel and negative pressure pipe both move with the welding torch.

[0013] Preferably, the welding cleaning mechanism further includes a heat insulation cover, which covers the outside of the grinding wheel. The heat insulation cover has an opening at the end away from the multi-axis robotic arm and an opening at the side facing the welding gun. The heat insulation cover, together with the negative pressure pipe, enhances the traction of welding fumes.

[0014] Preferably, the welding cleaning mechanism further includes a preheating hood, with an opening at the end of the preheating hood furthest from the multi-axis robotic arm. The negative pressure pipe consists of an extraction pipe and a connecting pipe, with both ends of the connecting pipe connected to the insulation hood and the preheating hood respectively. The extraction pipe is fixedly installed on the preheating hood, with the end of the extraction pipe furthest from the preheating hood directly connected to a suction device. A cleaning wheel is rotatably installed inside the preheating hood, and a cleaning motor is connected to the outside of the cleaning wheel. The extraction pipe and the connecting pipe have openings on both sides of the cleaning wheel.

[0015] Preferably, both the cleaning wheel and the polishing wheel are composed of multiple discs, and the circumferential surface of each disc is wavy, with the peaks and troughs of the wavy shape of two adjacent discs being staggered.

[0016] Preferably, the preheating hood has symmetrically designed pressure grooves, and a positioning spring is fixedly installed in each pressure groove. A lifting rod is installed in both pressure grooves. The cleaning wheel extends into the pressure grooves, and the lifting rod is located between the cleaning wheel and the positioning spring. A connecting pipe is fixedly installed on the lifting rod. In the initial state, both ends of the connecting pipe are connected to the air extraction pipe and the connecting pipe, respectively.

[0017] Preferably, the multi-axis robotic arm is equipped with an adjusting component, which is used to adjust the distance between the preheating cover and the heat preservation cover. The adjusting component includes a limiting ring, a lifting plate, a connecting handle, and a support spring.

[0018] The limiting ring is fixedly installed on the multi-axis robotic arm. An electric telescopic rod is fixedly installed inside the limiting ring. A lifting plate is fixedly installed at the output end of the electric telescopic rod. The connecting handle is hinged to the lifting plate. The heat preservation cover and the cleaning cover are both fixedly installed at the end of the connecting handle. A support spring is installed between the lifting plate and the connecting handle.

[0019] Preferably, both the preheating cover and the insulation cover are rotatably connected to a sealing sleeve. The end of the sealing sleeve away from the multi-axis robotic arm is made of elastic rubber material, corresponding to the opening of the sealing sleeve side wall of the insulation cover, and the opening of the sealing sleeve is aligned with the opening of the insulation cover.

[0020] Preferably, a drainage band is fixedly installed between the two sealing sleeves. The drainage band is made of an elastic metal sheet and has an arc-shaped design in its initial state.

[0021] Preferably, a flow-draining valve seat is embedded in the middle of the connecting pipe, and the flow-draining valve seat has symmetrically designed flow-draining grooves. The two ends of the flow-draining grooves are respectively designed to be connected to the filter pipe and the connecting pipe. A filter pipe is installed on the flow-draining valve seat, and the flow-draining valve seat extends to the middle of the inner cavity of the filter pipe. A filter screen is fixedly installed inside the filter pipe.

[0022] Preferably, an enhancement pump is fixedly installed on the multi-axis robotic arm, and the enhancement pump is connected to the middle of the connecting pipe. The enhancement pump is used to enhance the airflow transport intensity of the connecting pipe.

[0023] The beneficial effects of this invention are as follows:

[0024] 1. The welding equipment for new energy vehicle parts described in this invention, by setting up a welding cleaning mechanism, performs pre-weld cleaning and post-weld cleaning in real time during the welding process. Utilizing the short interval between cleaning and welding, it enhances the treatment effect of the weld and improves welding quality. Furthermore, it enables rapid collection and utilization of residual heat, improving the efficiency of residual heat utilization and enhancing the energy-saving effect of the equipment. Compared to related technologies that collect, convert, and reuse residual heat from welds, this invention effectively avoids the difficulties in collection, conversion, and utilization caused by residual heat dissipation because the interval between heat collection and utilization is short.

[0025] 2. The welding equipment for new energy vehicle parts described in this invention, by setting up a preheating hood and a cleaning wheel, and making the negative pressure pipe connected to the preheating hood, causes the airflow to flow through the position to be welded under the guidance of the negative pressure pipe and the preheating hood. On the one hand, by utilizing heat exchange, some of the heat in the airflow is transferred to the position to be welded, which not only achieves preheating treatment of the position to be welded and enhances the utilization of welding residual heat, but also reduces the temperature of the airflow, which facilitates the purification treatment of the airflow. At the same time, in conjunction with the entrainment effect of the airflow, the grinding debris of the cleaning wheel is transported. Attached Figure Description

[0026] The invention will now be further described with reference to the accompanying drawings.

[0027] Figure 1 This is a perspective view of the present invention;

[0028] Figure 2 It is an assembly 3D view of the welding mechanism and the on-site cleaning mechanism;

[0029] Figure 3 It is a 3D view of the welding cleaning mechanism;

[0030] Figure 4 It is a 3D view of the assembly of the grinding wheel and the grinding motor;

[0031] Figure 5 This is a cross-sectional view of the welding cleaning mechanism;

[0032] Figure 6 yes Figure 5 Enlarged view of a portion of point A in the middle;

[0033] Figure 7 yes Figure 5 Enlarged view of a section at point B in the middle;

[0034] Figure 8 This is a cross-sectional view of the preheating hood from another angle;

[0035] In the diagram: 1. Welding table; 11. Welding torch; 12. Multi-axis robotic arm; 2. Grinding wheel; 21. Grinding motor; 22. Insulation cover; 23. Preheating cover; 24. Extraction pipe; 25. Connecting pipe; 26. Cleaning wheel; 27. Cleaning motor; 3. Pressure groove; 31. Positioning spring; 32. Lifting rod; 33. Connecting pipe; 4. Limiting ring; 41. Electric telescopic rod; 42. Lifting plate; 43. Connecting handle; 44. Support spring; 5. Sealing sleeve; 51. Drainage belt; 6. Drainage valve seat; 61. Drainage groove; 62. Filter pipe; 63. Filter screen; 64. Enhanced pump. Detailed Implementation

[0036] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0037] like Figures 1 to 8 As shown, the welding equipment for new energy vehicle parts of the present invention includes a welding table 1 and a welding mechanism and a welding cleaning mechanism installed on the welding table 1.

[0038] The welding mechanism is used to weld automotive parts. The welding mechanism includes at least a welding torch 11 and a multi-axis robotic arm 12. The welding torch 11 is fixedly mounted on the multi-axis robotic arm 12, and the multi-axis robotic arm 12 is used to plan the movement path of the welding torch 11.

[0039] The on-site welding cleaning mechanism is mounted on the multi-axis robotic arm 12. The on-site welding cleaning mechanism is used to clean the weld seam and includes:

[0040] Grinding wheel 2, the grinding wheel 2 is used to grind and clean the weld, the grinding wheel 2 is externally connected to a grinding motor 21, which provides rotational power to the grinding wheel 2;

[0041] A negative pressure pipe is connected to an external suction device. The negative pressure pipe extends to the side of the grinding wheel 2 away from the welding gun 11. The negative pressure pipe draws welding slag and welding fumes with negative pressure.

[0042] The grinding wheel 2 and the negative pressure pipe both move with the welding gun 11.

[0043] The welding cleaning mechanism also includes a heat insulation cover 22, which covers the outside of the grinding wheel 2. The heat insulation cover 22 is open at one end away from the multi-axis robotic arm 12 and at the other end facing the welding torch 11. The heat insulation cover 22 works with the negative pressure pipe to enhance the traction of welding fumes.

[0044] In the welding process of automotive parts, in order to improve welding quality and reduce the difficulty of subsequent weld treatment, this invention is equipped with a welding cleaning mechanism. During the welding process, the weld is ground and cleaned in real time, and the welding slag and weld beads are ground and removed at high temperature to avoid the influence of factors such as the increased hardness of the welding slag after cooling.

[0045] Specifically, during the component welding process, under the control of a pre-set control program, the multi-axis robotic arm 12 moves the welding torch 11 along a pre-defined route, performing welding treatment on the areas to be welded during the movement. As the welding torch 11 moves, the weld seam formed after welding undergoes heat exchange with the outside air and airflow, resulting in a temperature decrease. This temperature decreases continuously over time. At this time, the grinding wheel 2, mounted on one side of the welding torch 11, moves to the weld seam under the continuous drive of the grinding motor 21, and the grinding wheel 2 continuously... During rotation, the weld slag and weld beads at the weld seam are smoothed and removed. The negative pressure pipe, under the action of an external suction device, creates negative pressure. In this invention, the welding torch 11, the grinding wheel 2, and the opening of the negative pressure pipe are on the same straight line, and the insulation cover 22 covers the outside of the grinding wheel 2. The insulation cover 22 is set with its opening facing the side of the welding torch 11. Therefore, when the negative pressure formed by the negative pressure pipe pulls on the air, the air flows from the welding torch 11, successively to the insulation cover 22 and the negative pressure pipe, and then flows along the negative pressure pipe into the external suction device. It should be noted that the suction device... The equipment's output end is equipped with an air purification device to purify the extracted airflow. During this process, because the grinding wheel 2 and the negative pressure pipe move synchronously with the welding torch 11, the grinding wheel 2 can promptly grind and clean the weld after it has formed. At this time, the weld has undergone a short period of cooling. Although the weld is in a solidified state, its temperature is still relatively high, and the hardness of the slag and weld beads is low. Therefore, when the grinding wheel 2 grinds the weld, it not only causes less damage to the weld but also removes protrusions such as slag and weld beads. The difficulty of cleaning foreign objects on the weld surface is relatively low. On the other hand, as the negative pressure pipe continuously pulls the air, the air flows through the welding torch 11 and into the heat insulation cover 22 along the weld. During this process, the air continuously exchanges heat with the welding torch 11 and the weld, thereby slightly cooling the weld. The weld solidifies, and the airflow carries the welding fumes. When it flows through the heat insulation cover 22, it carries the powder formed by the grinding wheel 2 and flows through the negative pressure pipe into the suction equipment and air purification equipment, further cleaning the weld.

[0046] This invention, by setting up a welding cleaning mechanism, uses a grinding wheel 2 and a negative pressure pipe that move synchronously with the welding torch 11 to achieve timely grinding of the weld. This removes welding slag and weld beads from the weld, enhancing the welding quality, while also utilizing the directional flow of air to collect waste generated during welding and grinding, reducing the impact on the external environment.

[0047] In a preferred embodiment of the present invention, the welding cleaning mechanism further includes a preheating cover 23. The preheating cover 23 is open at one end away from the multi-axis robotic arm 12. The negative pressure pipe is composed of an extraction pipe 24 and a connecting pipe 25. The two ends of the connecting pipe 25 are respectively connected to the heat preservation cover 22 and the preheating cover 23. The extraction pipe 24 is fixedly installed on the preheating cover 23. The end of the extraction pipe 24 away from the preheating cover 23 is directly connected to the suction device. A cleaning wheel 26 is rotatably installed inside the preheating cover 23. The cleaning wheel 26 is externally connected to a cleaning motor 27. The extraction pipe 24 and the connecting pipe 25 are open on both sides of the cleaning wheel 26.

[0048] As the airflow carries and collects waste generated during grinding and welding, heat exchange occurs between the airflow and the weld seam and welding torch 11, resulting in a high airflow temperature. To utilize this heat, a preheating hood 23 is also provided in this invention. In this invention, the negative pressure pipe consists of an extraction pipe 24 and a connecting pipe 25. When the external suction device of the negative pressure pipe is started, the negative pressure first acts on the preheating hood 23 through the extraction pipe 24. Since the preheating hood 23 and the insulation hood 22 are connected through the connecting pipe 25, the negative pressure acts on the insulation hood 22 through the connecting pipe 25. That is to say, under the traction of the negative pressure, air flows from the welding torch 11 and the weld seam into the insulation hood 22 and the preheating hood 23, and then enters the extraction device. During the preparation process, as the air flows through the welding torch 11, the weld seam, and the insulation cover 22, the air temperature continuously rises, resulting in the air containing a large amount of heat energy. When the air flows through the preheating cover 23, since the preheating cover 23 and the insulation cover 22 are respectively located on both sides of the welding torch 11, the insulation cover 22 corresponds to the weld seam after welding, and the preheating cover 23 covers the position to be welded, the hot air will exchange heat with the position to be welded when it flows in the preheating cover 23, thereby preheating the position to be welded. At the same time, since the preheating cover 23 is equipped with a cleaning wheel 26, driven by the cleaning motor 27, the cleaning wheel 26 can also clean the position to be welded, which, together with the preheating treatment, further enhances the welding quality.

[0049] This invention, by setting up a preheating hood 23 and a cleaning wheel 26, and making the negative pressure pipe connected to the preheating hood 23, causes the airflow to flow through the position to be welded under the guidance of the negative pressure pipe and the preheating hood 23. On the one hand, by utilizing heat exchange, some of the heat in the airflow is transferred to the position to be welded. This not only achieves preheating treatment of the position to be welded and enhances the utilization of welding residual heat, but also reduces the temperature of the airflow, making it easier to purify the airflow. At the same time, the entrainment effect of the airflow also enables the transportation of grinding debris by the cleaning wheel 26.

[0050] This invention, by setting up a welding-in-place cleaning mechanism, performs pre-weld and post-weld cleaning in real time during the welding process. Utilizing the short interval between cleaning and welding, it enhances the treatment effect on the weld seam and improves welding quality. Furthermore, it enables rapid collection and utilization of residual heat, improving the efficiency of residual heat utilization and enhancing the energy-saving effect of the equipment. Compared to related technologies that collect, convert, and reuse weld residual heat, this invention effectively avoids the difficulties in collection, conversion, and utilization caused by residual heat dissipation because both collection and utilization occur within a short interval of welding.

[0051] In a preferred embodiment of the present invention, both the cleaning wheel 26 and the polishing wheel 2 are composed of multiple discs, and the circumferential surface of the discs is wavy, with the peaks and troughs of the wavy shape of two adjacent discs being staggered.

[0052] In order to ensure the continuous flow of airflow during the welding cleaning process, the cleaning wheel 26 and the grinding wheel 2 in this invention are both made of multiple discs stacked axially. With the circumferential wave-shaped setting of the discs, during the rotation of the cleaning wheel 26 and the grinding wheel 2, there is always a gap between the cleaning wheel 26, the grinding wheel 2 and the weld, so as to ensure the continuous directional flow of airflow. Moreover, since the position of the gap changes periodically, the cleaning wheel 26 and the grinding wheel 2 maintain a uniform state in the treatment of the weld.

[0053] In a preferred embodiment of the present invention, the preheating cover 23 is provided with symmetrically designed pressure grooves 3, and a positioning spring 31 is fixedly installed in the pressure grooves 3. A lifting rod 32 is installed in both pressure grooves 3. The cleaning wheel 26 extends into the pressure grooves 3, and the lifting rod 32 is located between the cleaning wheel 26 and the positioning spring 31. A connecting pipe 33 is fixedly installed on the lifting rod 32. In the initial state, the two ends of the connecting pipe 33 are respectively connected to the air extraction pipe 24 and the connecting pipe 25.

[0054] In order to ensure that the airflow can accurately act inside the heat insulation cover 22, in this invention, when the multi-axis robotic arm 12 drives the heat insulation cover 22 and the preheating cover 23 to contact the surface of the workpiece to be welded, the cleaning wheel 26, which protrudes from the bottom of the preheating cover 23 in the initial state, first contacts the surface of the workpiece. Then, under the action of pressure, the cleaning wheel 26 pushes the lifting rod 32 and squeezes the positioning spring 31, causing the connecting pipe 33 to be misaligned with the suction pipe 24 and the connecting pipe 25. When the suction device is started, it will cause negative pressure to act inside the preheating cover 23 through the suction pipe 24. When the cleaning wheel 26 is not pressed, the two ends of the connecting pipe 33 are aligned with the suction pipe 24 and the connecting pipe 25. The negative pressure acts on the connecting pipe 33, the connecting pipe 25 and the heat insulation cover 22 through the suction pipe 24 in turn, thereby making the airflow inside the heat insulation cover 22 stable.

[0055] In a preferred embodiment of the present invention, the multi-axis robotic arm 12 is equipped with an adjusting component, which is used to adjust the distance between the preheating cover 23 and the heat preservation cover 22. The adjusting component includes a limiting ring 4, a lifting plate 42, a connecting handle 43 and a support spring 44.

[0056] The limiting ring 4 is fixedly installed on the multi-axis robotic arm 12. An electric telescopic rod 41 is fixedly installed inside the limiting ring 4. A lifting plate 42 is fixedly installed at the output end of the electric telescopic rod 41. The connecting handle 43 is hingedly installed on the lifting plate 42. The heat preservation cover 22 and the cleaning cover are both fixedly installed at the end of the connecting handle 43. A support spring 44 is installed between the lifting plate 42 and the connecting handle 43.

[0057] Both the preheating cover 23 and the heat preservation cover 22 are rotatably connected to a sealing sleeve 5. The end of the sealing sleeve 5 away from the multi-axis robotic arm 12 is made of elastic rubber material, corresponding to the opening of the side wall of the sealing sleeve 5 of the heat preservation cover 22, and the opening of the sealing sleeve 5 is aligned with the opening of the heat preservation cover 22.

[0058] A drainage band 51 is fixedly installed between the two sealing sleeves 5. The drainage band 51 is made of an elastic metal sheet and is initially designed in an arc shape.

[0059] Because welding rates and temperatures vary across different welding processes, the timing of on-the-fly cleaning needs to be adjusted to ensure its timeliness and its positive impact on welding quality. Specifically, in slower welding processes, the welding torch 11 moves at a slower speed, requiring a shorter distance between the grinding wheel 2, cleaning wheel 26, and welding torch 11 to ensure timely cleaning. Conversely, at faster welding speeds, to ensure complete weld solidification, the distance between the grinding wheel 2, cleaning wheel 26, and welding torch 11 needs to be increased. The increased distance between the grinding wheel 26 and the welding torch 11 provides time for the weld to solidify. Therefore, an adjustment mechanism is provided in this invention to facilitate convenient adjustment of the cleaning time during welding. When adjusting the gap between the grinding wheel 2, the welding torch 11, and the cleaning wheel 26, the electric telescopic rod 41 is extended or shortened by a pre-set control program. When the electric telescopic rod 41 extends, the lifting plate 42 gradually moves outward from the limiting ring 4. At this time, under the pushing action of the support spring 44, the two connecting handles 43 gradually deflect, causing the preheating cover 23 and the heat preservation cover 22 to... As the preheating and insulation covers move further apart, the distance between the grinding wheels 2 and cleaning wheels 26 within the preheating cover 23 and insulation cover 22 increases. When the electric telescopic rod 41 shortens, the lifting plate 42 continuously moves towards the limiting ring 4. Under the restriction of the limiting ring 4 on the connecting handle 43, the connecting handle 43 gradually rotates towards the welding torch 11, thus gradually reducing the distance between the preheating cover 23 and insulation cover 22. Once the positions of the preheating cover 23 and insulation cover 22 are adjusted, under the drive of the multi-axis robotic arm 12, the insulation cover 22 and preheating cover 23 approach the welding plane. The sealing sleeve 5, which is rotatably fitted on the preheating cover 23 and the insulation cover 22, can rotate around the preheating cover 23 and the insulation cover 22 to fill the gap between the preheating cover 23, the insulation cover 22 and the welding surface. The setting of the flow guide 51 can form an airflow guiding channel, so that when the insulation cover 22 opens to draw air, the airflow can flow along the preheating cover 23, the welding torch 11 and the insulation cover 22. At the same time, the flow guide 51 can also intercept the welding slag splashed by the welding torch 11 during welding, so as to enhance the collection effect of welding slag when the airflow is carried.

[0060] In a preferred embodiment of the present invention, a flow-draining valve seat 6 is embedded in the middle of the connecting pipe 25. The flow-draining valve seat 6 has symmetrically designed flow-draining grooves 61. The two ends of the flow-draining grooves 61 are respectively designed to be connected to the filter pipe 62 and the connecting pipe 25. The filter pipe 62 is installed on the flow-draining valve seat 6. The flow-draining valve seat 6 extends to the middle of the inner cavity of the filter pipe 62. A filter screen 63 is fixedly installed inside the filter pipe 62.

[0061] An enhancement pump 64 is fixedly installed on the multi-axis robotic arm 12. The enhancement pump 64 is connected to the middle of the connecting pipe 25 and is used to enhance the airflow transport intensity of the connecting pipe 25.

[0062] During the airflow process, in order to enhance the cleaning effect of the welding position and ensure the airflow effect, the reinforcement pump 64 and the suction equipment are started simultaneously during welding and welding cleaning operations. The suction equipment is directly connected to the suction pipe 24, which creates a negative pressure in the suction pipe 24. The two ends of the reinforcement pump 64 are connected to the connecting pipe 25. Under the action of the reinforcement pump 64, the airflow in the connecting pipe 25 flows from the heat insulation cover 22 to the preheating cover 23. During the flow, when the airflow flows through the heat insulation cover 22, it carries the welding slag and the powder generated by the grinding wheel 2 and moves it to the filter pipe 62. Under the action of the filter screen 63 and gravity in the filter pipe 62, the solid particles are separated from the airflow. The airflow flows back into the connecting pipe 25 through the guide groove 61 on the other side of the filter screen 63, thereby achieving the initial dust removal of the airflow to remove large particulate impurities in the airflow, so that when the hot airflow preheats the preheating cover 23, large particulate impurities remain on the welding position.

[0063] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding equipment for new energy vehicle parts, characterized in that, It includes a welding table (1) and a welding mechanism and a welding cleaning mechanism installed on the welding table (1); The welding mechanism is used to weld automotive parts. The welding mechanism includes at least a welding torch (11) and a multi-axis robotic arm (12). The welding torch (11) is fixedly mounted on the multi-axis robotic arm (12). The multi-axis robotic arm (12) is used to plan the movement path of the welding torch (11). The on-the-fly cleaning mechanism is mounted on a multi-axis robotic arm (12) and is used to clean the weld. The on-the-fly cleaning mechanism includes: Grinding wheel (2), the grinding wheel (2) is used to grind and clean the weld, the grinding wheel (2) is connected to a grinding motor (21) to provide rotational power to the grinding wheel (2); Negative pressure pipe, the negative pressure pipe is connected to an external suction device, the negative pressure pipe extends to the side of the grinding wheel (2) away from the welding gun (11), the negative pressure pipe draws welding slag and welding fumes with negative pressure; The grinding wheel (2) and the negative pressure pipe both move with the welding gun (11).

2. The welding equipment for new energy vehicle parts according to claim 1, characterized in that: The welding cleaning mechanism also includes a heat insulation cover (22), which covers the outside of the grinding wheel (2). The heat insulation cover (22) is set with an opening at the end away from the multi-axis robotic arm (12) and an opening on the side facing the welding gun (11). The heat insulation cover (22) works with the negative pressure pipe to enhance the traction of welding fumes.

3. The welding equipment for new energy vehicle parts according to claim 2, characterized in that: The welding cleaning mechanism also includes a preheating cover (23), which is open at one end away from the multi-axis robotic arm (12). The negative pressure pipe is composed of an air extraction pipe (24) and a connecting pipe (25). The two ends of the connecting pipe (25) are connected to the heat insulation cover (22) and the preheating cover (23) respectively. The air extraction pipe (24) is fixedly installed on the preheating cover (23). The end of the air extraction pipe (24) away from the preheating cover (23) is directly connected to the air extraction device. A cleaning wheel (26) is rotatably installed inside the preheating cover (23). The cleaning wheel (26) is connected to a cleaning motor (27). The air extraction pipe (24) and the connecting pipe (25) are open on both sides of the cleaning wheel (26).

4. The welding equipment for new energy vehicle parts according to claim 3, characterized in that: Both the cleaning wheel (26) and the polishing wheel (2) are composed of multiple discs, and the circumference of the discs is wavy, with the peaks and troughs of the wavy shape of two adjacent discs being staggered.

5. The welding equipment for new energy vehicle parts according to claim 3, characterized in that: The preheating cover (23) is provided with symmetrically designed pressure grooves (3). A positioning spring (31) is fixedly installed in the pressure groove (3). A lifting rod (32) is installed in both pressure grooves (3). The cleaning wheel (26) extends into the pressure groove (3), and the lifting rod (32) is located between the cleaning wheel (26) and the positioning spring (31). A connecting pipe (33) is fixedly installed on the lifting rod (32). In the initial state, the two ends of the connecting pipe (33) are respectively connected to the air extraction pipe (24) and the connecting pipe (25).

6. The welding equipment for new energy vehicle parts according to claim 3, characterized in that: The multi-axis robotic arm (12) is equipped with an adjustment component, which is used to adjust the distance between the preheating cover (23) and the heat preservation cover (22). The adjustment component includes a limiting ring (4), a lifting plate (42), a connecting handle (43), and a support spring (44). The limiting ring (4) is fixedly installed on the multi-axis robotic arm (12). An electric telescopic rod (41) is fixedly installed inside the limiting ring (4). A lifting plate (42) is fixedly installed at the output end of the electric telescopic rod (41). The connecting handle (43) is hinged to the lifting plate (42). The heat preservation cover (22) and the cleaning cover are both fixedly installed at the end of the connecting handle (43). A support spring (44) is installed between the lifting plate (42) and the connecting handle (43).

7. The welding equipment for new energy vehicle parts according to claim 6, characterized in that: Both the preheating cover (23) and the heat preservation cover (22) are rotatably connected with sealing sleeves (5). The end of the sealing sleeve (5) away from the multi-axis robotic arm (12) is made of elastic rubber material, corresponding to the opening of the side wall of the sealing sleeve (5) of the heat preservation cover (22), and the opening of the sealing sleeve (5) is aligned with the opening of the heat preservation cover (22).

8. The welding equipment for new energy vehicle parts according to claim 7, characterized in that: A drainage band (51) is fixedly installed between the two sealing sleeves (5). The drainage band (51) is made of an elastic metal sheet and is initially designed as an arc.

9. The welding equipment for new energy vehicle parts according to claim 5, characterized in that: A flow-draining valve seat (6) is embedded in the middle of the connecting pipe (25). The flow-draining valve seat (6) has symmetrically designed flow-draining grooves (61). The two ends of the flow-draining grooves (61) are designed to be connected to the filter pipe (62) and the connecting pipe (25) respectively. The filter pipe (62) is installed on the flow-draining valve seat (6). The flow-draining valve seat (6) extends to the middle of the inner cavity of the filter pipe (62). A filter screen (63) is fixedly installed inside the filter pipe (62).

10. The welding equipment for new energy vehicle parts according to claim 9, characterized in that: An enhancement pump (64) is fixedly installed on the multi-axis robotic arm (12). The enhancement pump (64) is connected to the middle of the connecting pipe (25). The enhancement pump (64) is used to enhance the airflow transport intensity of the connecting pipe (25).

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