Automatic welding robot capable of preventing welding slag from falling on workpiece

Abstract

The invention relates to the technical field of welding equipment, and discloses an automatic welding robot capable of preventing welding slag from falling on a workpiece, which comprises a base, a mechanical arm arranged at the top of the base, a welding head arranged at one end, far away from the base, of the mechanical arm, and adsorption equipment and an adjusting assembly arranged on the outer side of the welding head, and the adsorption equipment is connected with the adjusting assembly. According to the automatic welding robot capable of preventing the welding slag from falling onto the workpiece, adsorption equipment is arranged, a lower cover covers the outer side of a welding brazing rod, in this way, during welding, a suction pump is started firstly, the splashed welding slag is guided by airflow to enter the lower cover from adsorption holes, then the welding slag flows out of an external connecting pipe, the welding slag can be collected, the welding slag is prevented from being splashed onto the workpiece, and the welding slag is prevented from falling onto the workpiece. And meanwhile, the cleaning assembly scrapes the welding slag attached to the inner walls of the lower cover and the covering channel, so that the welding slag can be continuously attached to the inner walls of the lower cover and the covering channel, and the collecting effect on the welding slag is enhanced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of welding equipment, in particular to an automatic welding robot capable of avoiding welding slag from falling on a workpiece. BACKGROUND

[0002] The automatic welding robot is an industrial robot used for automatic welding operation and is widely applied in manufacturing and other fields. The automatic welding robot is mainly composed of a mechanical arm, a welding power supply, a control system, a wire feeding mechanism and the like. The mechanical arm has multiple degrees of freedom and can accurately position and operate a welding tool, simulates the action of a human welder and performs welding operation on different work environments and workpieces. The welding power supply provides stable current and voltage for welding to ensure welding quality. The control system is the “brain” of the robot and accurately controls the motion trajectory, welding speed and welding parameters of the mechanical arm through a preset program and can also realize collaborative work with other equipment. The wire feeding mechanism is responsible for accurately feeding welding wire to a welding position.

[0003] The automatic welding robot has the advantages of stable welding quality, high production efficiency and strong repeatability, can greatly reduce labor cost and labor intensity, improves the automation level of production and product quality and plays an important role in automobile manufacturing, shipbuilding, metal processing and other industries.

[0004] The prior art has the following defects: During welding operation, high-temperature arc melts metal and forms a molten pool. Metal oxides, flux residues and impurities on the surface of the molten pool form welding slag after cooling. In the traditional process, the welding slag is scattered on the surface of the workpiece in the form of spatter or natural falling, which can cause damage to the surface of the workpiece, subsequent processing obstacles, functional performance decline and other hazards. Moreover, the welding slag will completely solidify after a period of time, increasing the difficulty of cleaning. SUMMARY

[0005] In view of the problem that welding slag is scattered everywhere during welding in the prior art, the application provides an automatic welding robot capable of avoiding welding slag from falling on a workpiece.

[0006] The application provides an automatic welding robot capable of avoiding welding slag from falling on a workpiece, which aims to collect welding slag and avoid the scattering of welding slag.

[0007] The technical scheme of the application is as follows: an automatic welding robot capable of avoiding welding slag from falling on a workpiece, comprising a base, a mechanical arm arranged on the top of the base, a welding head arranged at the end of the mechanical arm away from the base, and a suction device arranged on the outer side of the welding head. The adsorption device specifically includes an adsorption cover arranged at the end of the welding head away from the robotic arm, an adsorption chamber opened on the inner side of the adsorption cover wall, an adsorption hole opened on the inner side of the adsorption cover and connected to the adsorption chamber, an external pipe arranged on the outer side of the adsorption cover, a rotating disk arranged inside the adsorption cover, a connecting hole arranged on the top of the rotating disk, a cleaning component arranged at the bottom of the rotating disk, and a power component arranged on the top of the rotating disk; The adsorption cover specifically includes a lower cover and an upper joint, and the adsorption chamber specifically includes a covering channel and a flow channel respectively opened on the inner side of the lower cover and the upper joint wall body, an adsorption hole array is distributed on the inner side of the lower cover, and a through hole connected to the inner space of the lower cover is opened at the connection between the covering channel and the flow channel. The rotating disk enters the covering channel through the through hole, the external pipe is connected to the flow channel, and the cleaning component is fitted with the inner wall of the lower cover and the covering channel.

[0008] Furthermore, the cleaning assembly specifically includes an outer scraper and an inner scraper arranged at the bottom of the rotating disk. The outer scraper is attached to the inner wall of the lower cover, and the inner scraper is attached to the inner wall of the covering channel close to the outer contour.

[0009] Furthermore, a reinforcement hook is provided at one end of the outer scraper strip away from the rotating disk. The reinforcement hook is in a "J" shape and is hooked on the edge of the lower cover away from the upper joint.

[0010] Furthermore, a reinforcement block is provided at one end of the inner scraper strip away from the rotating disk, and the reinforcement block is in contact with the inner wall of the covering channel on the side close to the inner contour.

[0011] Furthermore, the power assembly specifically includes a rotation groove opened on the inner side of the upper joint, a rotating wheel arranged on the inner side of the rotation groove, a reinforcement hook arranged on the outer side of the rotating wheel, and an inflow channel and an outflow channel opened between the rotation groove and the flow channel; The inflow channel penetrates to the outside of the adsorption cover, and the external pipe penetrates the inflow channel and is communicated with the rotation groove.

[0012] Furthermore, the through paths of the inflow channel and the outflow channel are tangent to the inner wall of the rotation groove.

[0013] Furthermore, the cross section of the lower cover is truncated cone-shaped, the opening diameter of one end of the lower cover close to the upper joint is smaller than the opening diameter of the other end, and the cross section of the upper joint is cylindrical.

[0014] Furthermore, the adsorption cover is assembled by assembling two symmetrical accessories, and the adsorption cover is sleeved on a fixed sleeve at one end of the upper joint away from the lower cover.

[0015] Furthermore, an adjustment component is provided on the outside of the welding head, and the adjustment component specifically includes a fixing ring arranged on the outside of the welding head, a mounting groove opened at the end of the upper joint away from the lower cover, a mounting ring arranged on the inside of the mounting groove, and an adjustment spring arranged between the mounting ring and the fixing ring.

[0016] The beneficial effects of the present application are: 1. By setting the adsorption device, the lower cage is covered outside the welding rod, so when welding, first start the suction pump, the splashed welding slag is guided by the airflow into the lower cover from the adsorption hole, then the welding slag flows out from the external connecting pipe, so the welding slag can be collected, avoiding the welding slag splashing on the workpiece, ensuring the quality of the workpiece, and the cleaning assembly scrapes off the welding slag attached to the inner wall of the lower cover and the covering channel, so that the inner wall of the lower cover and the covering channel can continuously attach the welding slag, enhancing the collection effect of the welding slag.

[0017] 2. By setting the cleaning assembly, the outer scraper removes the welding slag attached to the inner wall of the lower cover, and the inner scraper removes the welding slag attached to the inner wall of the covering channel, so that the lower cover and the covering channel have the ability to continuously attach the welding slag, further enhancing the collection effect of the welding slag, and the outer scraper is tightly attached to the lower cover for a long time through the reinforcing hook, and the inner scraper is tightly attached to the covering channel for a long time through the reinforcing block, avoiding the outer scraper and the inner scraper loosening away from the one end of the rotating disc after a long time of work, and no longer tightly attached to the lower cover or the covering channel.

[0018] 3. By setting the power assembly, when the suction pump is started, the airflow pushes the fan blade and the rotating wheel to rotate, so that the rotating disc drives the cleaning assembly to rotate for cleaning, so that the collection program and the cleaning program work cooperatively, and the cooperation is more perfect, ensuring the stable operation of the equipment.

[0019] 4. By setting the adjusting assembly, the adsorption cover is fixed with the mounting ring, and the adsorption cover and the adsorption hole are slidingly installed outside the welding head, so that when the welding point is shielded, the adsorption cover can move a certain distance along the welding head to avoid it, so that the adaptation range of the equipment is wider. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a perspective view of the present application; Figure 2 It is a schematic view of the welding head of the present application; Figure 3 It is a disassembly schematic view of the adjusting assembly and the adsorption device of the present application; Figure 4 It is a schematic view of the adsorption device of the present application; Figure 5 It is a disassembly schematic view of the adsorption device of the present application; Figure 6 It is a schematic view of the power assembly of the present application; Figure 7 It is a schematic view of the cleaning assembly of the present application; Figure 8 It is a front view of the welding head of the present application; Figure 9 It is a Figure 8 A-A sectional view of the present application; Figure 10 It is a side view of the welding head of the present invention; Figure 11 For the present invention Figure 10 Cross-sectional view at the middle BB; Figure 12 For the present invention Figure 11 Select the enlarged part in the middle frame; Figure 13 For the present invention Figure 13 Enlarged view of the center part; Figure 14 For the present invention Figure 10 Cross-sectional view at CC.

[0021] In the picture: 1. Base; 2. Robotic arm; 3. Welding head; 4. Adjustment assembly; 41. Fixing ring; 42. Adjustment spring; 43. Mounting ring; 44. Mounting slot; 5. Adsorption device; 51. Adsorption cover; 511. Lower cover; 512. Upper joint; 52. Adsorption chamber; 521. Covering channel; 522. Flow channel; 53. Adsorption hole; 54. External tube; 55. Rotating disk; 56. Connecting hole; 57. Cleaning assembly; 571. External scraper; 572. Internal scraper; 573. Reinforcement hook; 574. Reinforcement block; 58. Power assembly; 581. Rotating slot; 582. Rotating wheel; 583. Fan blade; 584. Inflow channel; 585. Outflow channel; 59. Fixing sleeve. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0023] Example 1, with reference to Figures 1-14 , which is the first embodiment of the present invention, provides an automatic welding robot for preventing welding slag from falling onto a workpiece, including a base 1, a robotic arm 2 arranged on the top of the base 1, a welding head 3 arranged at the end of the robotic arm 2 away from the base 1, and also includes an adsorption device 5 arranged on the outside of the welding head 3.

[0024] The adsorption device 5 specifically includes an adsorption cover 51 arranged at the end of the welding head 3 away from the robotic arm 2, an adsorption chamber 52 opened on the inner side of the wall of the adsorption cover 51, a plurality of adsorption holes 53 opened on the inner side of the adsorption cover 51 and connected to the adsorption chamber 52, an external pipe 54 arranged on the outside of the adsorption cover 51, a rotating disk 55 arranged inside the adsorption cover 51, a connecting hole 56 penetrating the top of the rotating disk 55, a cleaning component 57 arranged at the bottom of the rotating disk 55, and a power component 58 arranged at the top of the rotating disk 55.

[0025] Specifically, the mechanical arm 2 is fixed at one end to the base 1 by bolts and at the other end to the welding head 3 by bolts, the welding head 3 is provided with a welding torch on the inner side, the adsorption cover 51 specifically includes a lower cover 511 and an upper connector 512, the adsorption cavity 52 specifically includes a covering channel 521 and a flow channel 522 respectively arranged on the inner side of the wall of the lower cover 511 and the upper connector 512, the cross section of the lower cover 511 is in the shape of a truncated cone, the opening diameter of the end of the lower cover 511 close to the upper connector 512 is smaller than that of the other end, the cross section of the upper connector 512 is in the shape of a cylinder, so that the collection effect of the adsorption cover 51 on the welding slag can be improved, the adsorption cover 51 is sleeved on the outer side of the welding head 3, and the covering channel 521 and the flow channel 522 are communicated.

[0026] The adsorption holes 53 are arranged in an array on the inner side of the lower cover 511, and a through hole communicating with the space on the inner side of the lower cover 511 is arranged at the connection position of the covering channel 521 and the flow channel 522, the external connecting pipe 54 is connected to the suction pump through a hose, the rotating disc 55 is annular and concentric with the adsorption cover 51, the rotating disc 55 is sleeved on the outer side of the welding head 3, the rotating disc 55 enters the covering channel 521 through the through hole, the through hole is completely matched with the rotating disc 55, the rotating disc 55 is rotatably installed at the through hole, the connecting hole 56 communicates the covering channel 521 and the flow channel 522, the external connecting pipe 54 communicates with the flow channel 522, and the cleaning assembly 57 is attached to the inner wall of the lower cover 511 and the covering channel 521.

[0027] By arranging the adsorption device 5, the lower cover 511 is arranged on the outer side of the welding torch, so that when welding, the suction pump is started first, the splashed welding slag is guided by the airflow to enter the lower cover 511 from the adsorption holes 53, and then the welding slag flows out from the external connecting pipe 54, so that the welding slag can be collected, the welding slag is prevented from splashing on the workpiece, the quality of the workpiece is ensured, and the cleaning assembly 57 scrapes off the welding slag attached to the inner wall of the lower cover 511 and the covering channel 521, so that the inner wall of the lower cover 511 and the covering channel 521 can continuously attach the welding slag, and the collection effect of the welding slag is enhanced.

[0028] The cleaning assembly 57 specifically includes an outer scraping strip 571 and an inner scraping strip 572 arranged on the bottom of the rotating disc 55, the outer scraping strip 571 is attached to the inner wall of the lower cover 511, the inner scraping strip 572 is attached to the inner wall of the side close to the outer contour of the covering channel 521, and the outer scraping strip 571 and the inner scraping strip 572 are connected to the rotating disc 55 by bolts.

[0029] A reinforcement hook 573 is fixed to the end of the outer scraper strip 571 away from the rotating disk 55. The reinforcement hook 573 is in the shape of a "J" and is hooked on the edge of the lower cover 511 away from the upper joint 512; a reinforcement block 574 is fixed to the end of the inner scraper strip 572 away from the rotating disk 55, and the reinforcement block 574 is in contact with the inner wall of the covering channel 521 close to the inner contour.

[0030] By setting up the cleaning component 57, the outer scraper 571 will scrape off the welding slag attached to the inner wall of the lower cover 511, and the inner scraper 572 will scrape off the welding slag attached to the inner wall of the covering channel 521, so that both the lower cover 511 and the covering channel 521 have the ability to continuously adhere to welding slag, further enhancing the collection effect of welding slag. At the same time, the outer scraper 571 and the lower cover 511 are tightly fitted for a long time through the reinforcement hook 573, and the inner scraper 572 and the covering channel 521 are tightly fitted for a long time through the reinforcement block 574, so as to avoid the outer scraper 571 and the inner scraper 572 from loosening at one end away from the rotating disk 55 after working for a long time, and no longer being tightly fitted to the lower cover 511 or the covering channel 521.

[0031] The power assembly 58 specifically includes a rotating groove 581 opened on the inner side of the upper joint 512, a rotating wheel 582 arranged on the inner side of the rotating groove 581, a reinforcement hook 573 arranged on the outer side of the rotating wheel 582, and an inflow channel 584 and an outflow channel 585 opened between the rotating groove 581 and the flow channel 522.

[0032] Specifically, the rotating groove 581 is located at one end of the upper joint 512 close to the lower cover 511, the rotating wheel 582 is rotatably connected to the outside of the rotating groove 581, the rotating wheel 582 is fixedly connected to the rotating disk 55, the fan blade 583 is fixedly connected to the rotating wheel 582, the inflow channel 584 and the outflow channel 585 are symmetrically arranged, the inflow channel 584 passes through to the outside of the adsorption cover 51, the external pipe 54 passes through the inflow channel 584 and is connected to the rotating groove 581, the external pipe 54 is connected to the upper joint 512 by glue welding, and the penetration path of the inflow channel 584 and the outflow channel 585 is tangent to the inner wall contour of the rotating groove 581, so that the airflow can better push the fan blade 583.

[0033] By setting up the power component 58, when the suction pump is started, the airflow pushes the fan blades 583 and the rotating wheel 582 to rotate, so that the rotating disk 55 drives the cleaning component 57 to rotate for cleaning. In this way, the collection process and the cleaning process work together, the coordination is more perfect, and the stable operation of the equipment is guaranteed.

[0034] Example 2, reference Figures 1-6For the second embodiment of the present application, which is different from the first embodiment, the outer side of the welding head 3 is provided with an adjusting assembly 4, which specifically includes a fixing ring 41 provided on the outer side of the welding head 3, a mounting groove 44 opened on the upper joint 512 away from the lower cover 511, a mounting ring 43 provided on the inner side of the mounting groove 44, and an adjusting spring 42 provided between the mounting ring 43 and the fixing ring 41.

[0035] By providing the adjusting assembly 4, the adsorption cover 51 is fixed with the mounting ring 43, and the adsorption cover 51 and the adsorption hole 53 are slidingly mounted on the outer side of the welding head 3. Thus, when the welding point is shielded, the adsorption cover 51 can move a certain distance along the welding head 3 to avoid it, so that the adaptation range of the device is wider.

[0036] The rest of the structure is the same as that of embodiment 1.

[0037] In combination with embodiments 1-2, the working principle of the automatic welding robot for avoiding the falling of welding slag on the workpiece is as follows: When installing, the outer scraping strip 571 and the inner scraping strip 572 are fixed below the rotating disc 55, the rotating wheel 582 is fixed above the rotating disc 55, the adsorption cover 51 is then split into two halves, the adsorption cover 51 is then placed close to the inner side of the adsorption cover 51, the rotating disc 55 is inserted into the adsorption cavity 52 through the through hole, the rotating wheel 582 also enters the rotating groove 581, then the rotating disc 55 is rotated, the inner scraping strip 572 enters the covering channel 521, the inner scraping strip 572 is attached to the inner wall of the covering channel 521 close to the outer contour, the reinforcing block 574 is attached to the inner wall of the covering channel 521 close to the inner contour, the outer scraping strip 571 is attached to the inner wall of the lower cover 511, and the reinforcing hook 573 is also lapped on the edge of the lower cover 511 below the contour, and finally the other half of the adsorption cover 51 is combined with the adsorption cover 51, and the fixing sleeve 59 is sleeved on the upper side of the adsorption cover 51.

[0038] The fixing ring 41 and the mounting ring 43 are welded on both ends of the adjusting spring 42, then the mounting ring 43 is inserted into the mounting groove 44, the fixing sleeve 59, the adsorption cover 51, and the adsorption hole 53 are fixed by bolts, then the fixing ring 41, the adjusting spring 42, the mounting ring 43, and the adsorption cover 51 are sleeved on the outer side of the welding head 3, and finally the fixing ring 41 is fixed on the outer side of the welding head 3 by bolts, so that the adsorption cover 51 is lapped on the outer side of the end of the welding head 3.

[0039] In use, the suction pump is started, which sucks the air in the rotating groove 581 through the external connecting pipe 54, the air in the flow channel 522 is replenished by flowing into the rotating groove 581 through the outflow channel 585, so that the air flows in the rotating groove 581, the air blows on the outer side of the fan blade 583, and the rotating wheel 582 is pushed to rotate by the fan blade 583, the rotating wheel 582 drives the outer scraping strip 571 and the inner scraping strip 572 to rotate through the rotating disc 55, and at the same time, the air in the covering channel 521 flows into the flow channel 522 through the connecting hole 56, the air inside the lower cover 511 enters the covering channel 521 through the suction hole 53, so that a stable air flow channel is formed, during the welding process, the welding slag splashes from the welding point to the surrounding, and under the influence of the air flow, the welding slag flows to the inner wall of the lower cover 511 and the suction hole 53, because the liquid welding slag has certain adhesion at this time, part of the welding slag will adhere to the inner wall of the lower cover 511, another part of the welding slag adheres to the inner wall of the covering channel 521, and at the same time, the high-speed flowing air will cool these high-temperature welding slag, and the rotating outer scraping strip 571 and the inner scraping strip 572 will hang and fall the welding slag adhered to the inner wall of the lower cover 511 and the covering channel 521, these low-temperature welding slag will flow along the air flow channel with the air flow, and finally be discharged through the external connecting pipe 54.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. An automatic welding robot for preventing welding slag from falling onto a workpiece, comprising a base (1), a robotic arm (2) disposed on top of the base (1), and a welding head (3) disposed at an end of the robotic arm (2) away from the base (1), characterized in that: It also includes an adsorption device (5) arranged outside the welding head (3); The adsorption device (5) specifically includes an adsorption cover (51) arranged at one end of the welding head (3) away from the robot arm (2), an adsorption cavity (52) provided on the inner side of the wall of the adsorption cover (51), an adsorption hole (53) provided on the inner side of the adsorption cover (51) and communicating with the adsorption cavity (52), an external pipe (54) provided on the outer side of the adsorption cover (51), a rotating disk (55) provided inside the adsorption cover (51), a connecting hole (56) provided through the top of the rotating disk (55), a cleaning component (57) provided at the bottom of the rotating disk (55), and a power component (58) provided at the top of the rotating disk (55); The adsorption cover (51) specifically includes a lower cover (511) and an upper joint (512); the adsorption chamber (52) specifically includes a covering channel (521) and a flow channel (522) respectively provided on the inner sides of the wall of the lower cover (511) and the upper joint (512); an adsorption hole (53) is arrayed on the inner side of the lower cover (511); a through hole communicating with the inner space of the lower cover (511) is provided at the connection between the covering channel (521) and the flow channel (522); the rotating disk (55) enters the covering channel (521) through the through hole; the external pipe (54) is communicated with the flow channel (522); and the cleaning component (57) is in contact with the inner walls of the lower cover (511) and the covering channel (521).

2. The automatic welding robot for preventing welding slag from falling onto a workpiece according to claim 1, characterized in that: The cleaning assembly (57) specifically comprises an outer scraper (571) and an inner scraper (572) arranged at the bottom of the rotating disk (55); the outer scraper (571) is attached to the inner wall of the lower cover (511); and the inner scraper (572) is attached to the inner wall of the covering channel (521) on a side close to the outer contour.

3. The automatic welding robot for preventing welding slag from falling onto a workpiece according to claim 2, characterized in that: A reinforcing hook (573) is provided at one end of the outer scraper strip (571) away from the rotating disk (55). The reinforcing hook (573) is in a "J" shape and is hooked on the edge of the lower cover (511) away from the upper joint (512).

4. The automatic welding robot for preventing welding slag from falling onto a workpiece according to claim 2, characterized in that: A reinforcing block (574) is provided at one end of the inner scraping strip (572) away from the rotating disk (55), and the reinforcing block (574) is in contact with the inner wall of the covering channel (521) on the side close to the inner contour.

5. The automatic welding robot for preventing welding slag from falling onto a workpiece according to claim 1, characterized in that: The power assembly (58) specifically includes a rotation groove (581) provided on the inner side of the upper joint (512), a rotating wheel (582) provided on the inner side of the rotation groove (581), a reinforcing hook (573) provided on the outer side of the rotating wheel (582), and an inflow channel (584) and an outflow channel (585) provided between the rotation groove (581) and the flow channel (522); The inflow channel (584) penetrates to the outside of the adsorption cover (51), and the external pipe (54) penetrates the inflow channel (584) and communicates with the rotation groove (581).

6. The automatic welding robot for preventing welding slag from falling onto a workpiece according to claim 5, characterized in that: The through paths of the inflow channel (584) and the outflow channel (585) are tangent to the inner wall of the rotation groove (581).

7. The automatic welding robot for preventing welding slag from falling onto a workpiece according to claim 1, characterized in that: The cross section of the lower cover (511) is truncated cone-shaped, the opening diameter of one end of the lower cover (511) close to the upper joint (512) is smaller than the opening diameter of the other end, and the cross section of the upper joint (512) is cylindrical.

8. The automatic welding robot for preventing welding slag from falling onto a workpiece according to claim 1, characterized in that: The adsorption cover (51) is assembled by assembling two symmetrical accessories, and the adsorption cover (51) is sleeved on a fixed sleeve (59) at one end of the upper joint (512) away from the lower cover (511).

9. The automatic welding robot for preventing welding slag from falling onto a workpiece according to claim 1, characterized in that: An adjustment assembly (4) is provided on the outside of the welding head (3), and the adjustment assembly (4) specifically comprises a fixing ring (41) provided on the outside of the welding head (3), a mounting groove (44) provided at one end of the upper joint (512) away from the lower cover (511), a mounting ring (43) provided on the inside of the mounting groove (44), and an adjustment spring (42) provided between the mounting ring (43) and the fixing ring (41).

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