An automated welding robot with a protection function

Abstract

The application discloses an automatic welding robot with a protection function, and relates to the technical field of welding robots, which comprises a base, a mechanical arm installed on the base, a welding gun installed at the working end of the mechanical arm, a horizontal rod fixedly connected to the surface of the base in a transverse position, and a workbench slidably connected to the horizontal rod through a sliding assembly; and a limiting assembly arranged on the sliding assembly and used for fixing the position of the workbench. The application has a reasonable structure, the workbench can be moved on the horizontal rod as a whole through the sliding assembly, the welding gun on the mechanical arm can be used to weld workpieces, the workpieces can be positioned and conveyed through a protection assembly, the workpieces can be moved according to needs, and the risk of scalding caused by manually moving the workpieces is avoided.

Description

Technical Field

[0001] This invention relates to the field of welding robot technology, and in particular to an automated welding robot with protective functions. Background Technology

[0002] Welding is a core processing step in steel structure and automobile manufacturing. Traditional production relies heavily on manual welding, which is greatly affected by the welder's skill level. At the same time, welding fumes, strong light and high temperature can damage the welder's health. Manual welding cannot operate continuously for 24 hours, limiting production capacity. Existing conventional welding robots can only weld according to a preset trajectory. When the workpiece positioning is off or the assembly gap changes, they are prone to missed welds or burn-throughs, and their flexibility is poor.

[0003] A smart welding robot, with announcement number CN119077251A, includes a frame, a lifting platform, and a servo motor. A drive shaft, a first driven cylinder, and a second driven cylinder are rotatably connected to the lifting platform. The drive shaft is connected to the output end of the servo motor. Both the first and second driven cylinders are linked to the drive shaft. A support is provided on the lifting platform, and a movable seat is slidably mounted on the support. The movable seat is equipped with welding equipment. This invention has the following advantages and effects: By moving the lifting platform vertically, long-distance vertical adjustment of the welding equipment is achieved; by moving the movable seat horizontally, horizontal adjustment of the welding equipment is achieved. Through the servo motor, the first connecting device, and the second connecting device, the positions of the lifting platform and the movable seat can be adjusted separately using the servo motor, reducing manufacturing costs.

[0004] There are still some problems with welding robots when performing welding.

[0005] Welding robots rely on welding torches to complete workpiece welding operations. Existing solutions mostly use threaded rod telescopic structures to extend the welding operation stroke. For ultra-long workpieces, although the threaded rod structure can slightly expand the welding range, the telescopic adjustment is time-consuming, resulting in low overall welding efficiency. During processing, the workpiece needs to be frequently moved to match the welding points. After welding, the surface temperature of the workpiece is still high, and there is a high risk of burns during manual handling and transportation. At the same time, the back-and-forth movement of the workpiece can easily cause damage to the weld, reducing the product yield and increasing the labor time and safety management costs of manual handling. Summary of the Invention

[0006] The purpose of this application is to provide an automated welding robot with protective functions. This application can move the entire worktable on the crossbar through the sliding component, which facilitates the welding gun on the robotic arm to weld the workpiece. Then, the protective component can position and transport the workpiece, and move the workpiece as needed, without the need for manual handling of the workpiece.

[0007] To achieve the above objectives, this application provides the following technical solution: an automated welding robot with protective function, comprising: a base, on which a robotic arm is mounted, a welding torch is mounted at the working end of the robotic arm, a crossbar is fixedly connected to the surface of the base at a transverse position, and a worktable is slidably connected to the crossbar via a sliding assembly; a limiting assembly, which is disposed on the sliding assembly for fixing the position of the worktable; and a protective assembly, which is disposed on the worktable for fixing the workpiece.

[0008] Preferably, the sliding assembly includes a base plate, a first bracket, a mounting plate, and pulleys; the base plate is fixedly installed at the bottom end of the workbench, a pair of first brackets are provided, the pair of first brackets are installed on both sides of the inner wall of the base plate, the mounting plates are fixedly connected to both ends of the first brackets, and a pair of pulleys are rotatably connected to the mounting plates, the pair of pulleys are attached to the crossbar.

[0009] Preferably, the limiting component includes a support plate fixedly installed on the base plate, the support plate having a through groove, a pair of bearing seats fixedly connected to the top surface of the support plate, a shaft rod rotatably connected between the pair of bearing seats, the shaft rod being fixedly connected to an eccentric wheel, and a collar rotatably connected inside the eccentric wheel.

[0010] Preferably, a pressure plate is provided at the bottom of the eccentric wheel, the collar is attached to the top surface of the pressure plate, the pressure plate is fixedly connected to the top of the docking plate, the bottom end of the docking plate extends into the support plate through a through groove and is fixedly connected to the horizontal plate, the two ends of the horizontal plate are slidably connected to the slide rod, and the top end of the slide rod is fixedly connected to the support plate.

[0011] Preferably, a rod is inserted into the middle of the horizontal plate, a retaining ring is fixedly connected to the rod, a spring is sleeved on the rod, the two ends of the spring are fixedly connected to the top surface of the retaining ring and the bottom surface of the horizontal plate, respectively, and a pressure block is fixedly connected to the bottom end of the rod.

[0012] Preferably, the protective assembly includes a slide rail, a slider, a positioning plate, a carrying plate, and driven wheels; a pair of slide rails are provided, and the pair of slide rails are fixedly installed on the worktable; the slider is slidably connected to the slide rail; a positioning plate is fixedly connected between the sliders; a carrying plate is installed on the positioning plate; and several sets of driven wheels are rotatably connected to the carrying plate.

[0013] Preferably, a second bracket is fixedly connected to both ends of the carrying plate, and a side plate is fixedly connected to one end of the second bracket. A pair of limiting wheels are rotatably connected to the side plate.

[0014] Preferably, the middle of the worktable is provided with a movable groove between a pair of slide rails, and a retaining plate is provided inside the movable groove. One end of the retaining plate is fixedly connected to the positioning plate. A cylinder is fixedly installed on the worktable, and the telescopic end of the cylinder is fixedly connected to the other end of the retaining plate.

[0015] Preferably, a main shaft is rotatably connected to the worktable, a drive wheel is fixedly connected to one end of the main shaft, a first pulley is fixedly installed on the main shaft, a transmission belt is sleeved on the first pulley, the other end of the transmission belt is sleeved on a second pulley, a cover is provided around the transmission belt, and the cover is installed on the worktable.

[0016] Preferably, the second pulley is fixedly connected to one end of the drive rod, and the other end of the drive rod passes through the worktable and is fixedly connected to the output end of the servo motor, and the servo motor is fixedly mounted on the worktable.

[0017] In summary, the present invention has the following beneficial effects: 1. This invention enables rapid sliding of the worktable through pulleys and crossbars, allowing for a wide range of adjustment of the welding position, significantly shortening debugging time, and effectively improving the welding efficiency of ultra-long workpieces. Simultaneously, this invention utilizes a drive wheel, driven wheel, and cylinder alignment structure to achieve automated and precise workpiece transport and positioning, eliminating the need for manual workpiece handling throughout the process. This completely eliminates the safety hazard of burns from handling high-temperature workpieces, reduces safety management costs, and avoids weld damage caused by workpiece displacement and collisions, significantly improving the product welding yield.

[0018] 2. This invention can quickly fix the worktable through the eccentric wheel elastic locking structure, ensuring stable positioning without shaking, guaranteeing welding accuracy, smooth connection between each process, simplifying the operation process, reducing labor and rework losses, and having a simple and durable structure, effectively reducing the overall production cost, and is suitable for batch welding production of ultra-long workpieces. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the base; Figure 2 This is a rear view of the three-dimensional structure of the base. Figure 3 This is a schematic diagram of the three-dimensional structure of the crossbar; Figure 4This is a schematic diagram of the three-dimensional structure of the workbench; Figure 5 This is a schematic diagram of the three-dimensional structure of the sliding component; Figure 6 This is a schematic diagram of the three-dimensional structure of the pallet; Figure 7 This is a schematic diagram of the carrier plate structure; Figure 8 This is a schematic diagram of the three-dimensional structure of a cylinder.

[0021] In the diagram: 100, base; 101, robotic arm; 102, welding torch; 103, crossbar; 104, worktable; 200, sliding assembly; 201, base plate; 202, first bracket; 203, mounting plate; 204, pulley; 300, limiting assembly; 301, support plate; 302, through groove; 303, bearing seat; 304, shaft; 305, eccentric wheel; 306, collar; 307, pressure plate; 308, mating plate; 309, crossbar; 310, sliding rod; 311, insertion rod; 312, retaining ring. 313. Spring; 314. Pressure block; 400. Protective component; 401. Slide rail; 402. Slider; 403. Positioning plate; 404. Loading plate; 405. Driven wheel; 406. Second bracket; 407. Side plate; 408. Limiting wheel; 410. Movable groove; 411. Clamping plate; 412. Cylinder; 420. Main shaft; 421. Drive wheel; 422. First pulley; 423. Transmission belt; 424. Second pulley; 425. Cover; 426. Drive rod; 427. Servo motor. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Example: Reference Figure 1 - Figure 8 The illustrated automated welding robot with protective functions includes a base 100, a robotic arm 101 mounted on the base 100, a welding torch 102 mounted on the working end of the robotic arm 101, a crossbar 103 fixedly connected to the surface of the base 100 at a transverse position, and a worktable 104 slidably connected to the crossbar 103 via a sliding assembly 200; a limiting assembly 300 disposed on the sliding assembly 200 for fixing the position of the worktable 104; and a protective assembly 400 disposed on the worktable 104 for fixing the workpiece.

[0024] It should be noted that the robotic arm 101 operates through an existing control unit, and the specific working principle is based on existing technology, which will not be elaborated on here. The robotic arm 101 operates by welding the workpiece on the protective component 400 through the welding torch 102.

[0025] In one embodiment of this invention, the sliding component 200 includes a base plate 201, a first bracket 202, a mounting plate 203, and pulleys 204. The base plate 201 is fixedly installed at the bottom of the workbench 104. A pair of first brackets 202 are provided, and the pair of first brackets 202 are installed on both sides of the inner wall of the base plate 201. The mounting plates 203 are fixedly connected to both ends of the first brackets 202. A pair of pulleys 204 are rotatably connected to the mounting plates 203, and the pair of pulleys 204 are attached to the crossbar 103. The limiting component 300 includes a support plate 301 fixedly installed on the base plate 201. A through groove 302 is provided on the support plate 301. A pair of bearing seats 303 are fixedly connected to the top surface of the support plate 301. A shaft 304 is rotatably connected between the pair of bearing seats 303. The shaft 304 is fixedly connected to the eccentric... On wheel 305, a collar 306 is rotatably connected inside the eccentric wheel 305. A pressure plate 307 is provided at the bottom of the eccentric wheel 305. The collar 306 fits against the top surface of the pressure plate 307. The pressure plate 307 is fixedly connected to the top of the docking plate 308. The bottom end of the docking plate 308 extends through the through groove 302 into the support plate 301 and is fixedly connected to the horizontal plate 309. The two ends of the horizontal plate 309 are slidably connected to the slide rod 310. The top end of the slide rod 310 is fixedly connected to the support plate 301. An insert rod 311 is inserted in the middle of the horizontal plate 309. A retaining ring 312 is fixedly connected to the insert rod 311. A spring 313 is sleeved on the insert rod 311. The two ends of the spring 313 are fixedly connected to the top surface of the retaining ring 312 and the bottom surface of the horizontal plate 309, respectively. A pressure block 314 is fixedly connected to the bottom end of the insert rod 311.

[0026] Specifically, when the worktable 104 moves as a whole on the crossbar 103, the base plate 201 is moved by pushing the worktable 104. The base plate 201 is set on the crossbar 103, and a first bracket 202 and a mounting plate 203 are fixedly connected to the base plate 201. A pulley 204 is rotatably connected to the mounting plate 203, and the pulley 204 is in contact with the crossbar 103. The base plate 201 is manually pushed to move according to the processing needs. The movement of the base plate 201 causes the pulley 204 to move in contact with the crossbar 103. When it is necessary to fix the position of the worktable 104, the eccentricity is manually adjusted. The rotation of wheel 305 causes collar 306 to roll against the top surface of pressure plate 307, which facilitates the movement of horizontal plate 309 by pressure plate 307 through docking plate 308. Both ends of horizontal plate 309 are slidably connected to slide rod 310, and a rod 311 is inserted in the middle of horizontal plate 309. The sliding of horizontal plate 309 on slide rod 310 drives rod 311 to move downward. A pressure block 314 is fixedly connected to the bottom end of rod 311. The downward movement of rod 311 causes pressure block 314 to adhere to horizontal bar 103 by the elastic force of spring 313, which facilitates the fixation of the position of worktable 104.

[0027] As one embodiment of this invention, the protective component 400 includes a slide rail 401, a slider 402, a positioning plate 403, a carrying plate 404, and driven wheels 405. A pair of slide rails 401 are provided, and the pair of slide rails 401 are fixedly installed on the workbench 104. The slider 402 is slidably connected to the slide rail 401. A positioning plate 403 is fixedly connected between the sliders 402. The carrying plate 404 is installed on the positioning plate 403. Several sets of driven wheels 405 are rotatably connected to the carrying plate 404. Second brackets 406 are fixedly connected to both ends of the carrying plate 404. A side plate 407 is fixedly connected to one end of the second bracket 406. A pair of limit wheels 408 are rotatably connected to the side plate 407. A movable groove 410 is opened in the middle of the workbench 104 between the pair of slide rails 401. A retaining plate 411 is provided inside the movable groove 410. One end of the cylinder 412 is fixedly connected to the positioning plate 403. A cylinder 412 is fixedly installed on the worktable 104. The telescopic end of the cylinder 412 is fixedly connected to the other end of the clamping plate 411. A main shaft 420 is rotatably connected to the worktable 104. A drive wheel 421 is fixedly connected to one end of the main shaft 420. The drive wheel 421 is made of rubber. A first pulley 422 is fixedly installed on the main shaft 420. A transmission belt 423 is sleeved on the first pulley 422. The other end of the transmission belt 423 is sleeved on the second pulley 424. A cover 425 is provided around the transmission belt 423. The cover 425 is installed on the worktable 104. The second pulley 424 is fixedly connected to one end of the drive rod 426. The other end of the drive rod 426 passes through the worktable 104 and is fixedly connected to the output end of the servo motor 427. The servo motor 427 is fixedly installed on the worktable 104.

[0028] Specifically, a driven wheel 405 is rotatably connected to the carrier plate 404. The workpiece is placed on the driven wheel 405. Limiting wheels 408 are provided at both ends of the carrier plate 404 to limit the workpiece on both sides. The cylinder 412 is vertically mounted on the worktable 104. Then, the cylinder 412 pushes the clamping plate 411. The clamping plate 411 is fixedly connected to the positioning plate 403. The movement of the clamping plate 411 is achieved by the slider 402 on the positioning plate 403 sliding on the slide rail 401, so that the top surface of the workpiece on the driven wheel 405... The drive rod 426 is attached to the drive wheel 421, and then the servo motor 427 operates to rotate the drive rod 426. The second pulley 424 is fixedly connected to the drive rod 426. The rotation of the drive rod 426 causes the second pulley 424 to rotate. The rotation of the second pulley 424 drives the first pulley 422 to rotate through the transmission belt 423, thereby facilitating the rotation of the drive wheel 421 on the main shaft 420. The entire workpiece is moved by the cooperation between the drive wheel 421 and the driven wheel 405, without the need for manual movement of the workpiece.

[0029] The working principle of this invention is as follows: When the worktable 104 moves along the crossbar 103, pushing the worktable 104 causes the base plate 201 to move as well. The base plate 201 is mounted on the crossbar 103, and a first bracket 202 and a mounting plate 203 are fixedly connected to the base plate 201. A pulley 204 is rotatably connected to the mounting plate 203, and the pulley 204 is in contact with the crossbar 103. The movement of the base plate 201 causes the pulley 204 to move in contact with the crossbar 103. When it is necessary to fix the position of the worktable 104, the eccentric wheel 305 is pressed down to make the sleeve... The ring 306 rolls against the top surface of the pressure plate 307, which facilitates the pressure plate 307 to push the horizontal plate 309 to move through the docking plate 308. The two ends of the horizontal plate 309 are slidably connected to the slide rod 310, and a rod 311 is inserted in the middle of the horizontal plate 309. The horizontal plate 309 slides on the slide rod 310, which drives the rod 311 to move downward. The bottom end of the rod 311 is fixedly connected to the pressure block 314. The downward movement of the rod 311 causes the pressure block 314 to adhere to the horizontal bar 103 through the elastic force of the spring 313, which facilitates the fixation of the position of the worktable 104.

[0030] A driven wheel 405 is rotatably connected to the carrier plate 404. The workpiece is placed on the driven wheel 405. Limiting wheels 408 are provided at both ends of the carrier plate 404 to limit the workpiece on both sides. A cylinder 412 is vertically mounted on the worktable 104. The cylinder 412 then pushes the clamping plate 411. The clamping plate 411 is fixedly connected to the positioning plate 403. The movement of the clamping plate 411 is achieved by the slider 402 on the positioning plate 403 sliding on the slide rail 401, so that the top surface of the workpiece on the driven wheel 405 is in contact with the workpiece. On the drive wheel 421, the servo motor 427 operates to rotate the drive rod 426. The drive rod 426 is fixedly connected to the second pulley 424. The rotation of the drive rod 426 causes the second pulley 424 to rotate. The rotation of the second pulley 424 drives the first pulley 422 to rotate through the transmission belt 423, thereby facilitating the rotation of the drive wheel 421 on the main shaft 420. The workpiece is moved as a whole through the cooperation between the drive wheel 421 and the driven wheel 405, without the need for manual movement of the workpiece.

[0031] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automated welding robot with protective functions, characterized in that, include: A base (100) is provided, on which a robotic arm (101) is mounted. A welding torch (102) is mounted at the working end of the robotic arm (101). A crossbar (103) is fixedly connected to the surface of the base (100) at a transverse position. The crossbar (103) is slidably connected to a worktable (104) via a sliding assembly (200). A limiting component (300) is disposed on the sliding component (200) for fixing the position of the worktable (104). A protective component (400) is disposed on the worktable (104) for fixing the workpiece.

2. The automated welding robot with protective function according to claim 1, characterized in that: The sliding assembly (200) includes a base plate (201), a first bracket (202), a mounting plate (203), and a pulley (204); The base plate (201) is fixedly installed at the bottom of the workbench (104). A pair of first brackets (202) are provided. The pair of first brackets (202) are installed on both sides of the inner wall of the base plate (201). Mounting plates (203) are fixedly connected to both ends of the first brackets (202). A pair of pulleys (204) are rotatably connected to the mounting plates (203). The pair of pulleys (204) are attached to the crossbar (103).

3. The automated welding robot with protective function according to claim 2, characterized in that: The limiting component (300) includes a support plate (301) fixedly installed on the base plate (201). The support plate (301) has a through groove (302). A pair of bearing seats (303) are fixedly connected to the top surface of the support plate (301). A shaft (304) is rotatably connected between the pair of bearing seats (303). The shaft (304) is fixedly connected to an eccentric wheel (305). A collar (306) is rotatably connected inside the eccentric wheel (305).

4. The automated welding robot with protective function according to claim 3, characterized in that: A pressure plate (307) is provided at the bottom of the eccentric wheel (305). The collar (306) is attached to the top surface of the pressure plate (307). The pressure plate (307) is fixedly connected to the top of the docking plate (308). The bottom end of the docking plate (308) extends through the through groove (302) into the support plate (301) and is fixedly connected to the horizontal plate (309). The two ends of the horizontal plate (309) are slidably connected to the slide rod (310). The top end of the slide rod (310) is fixedly connected to the support plate (301).

5. The automated welding robot with protective function according to claim 4, characterized in that: A rod (311) is inserted into the middle of the horizontal plate (309). A retaining ring (312) is fixedly connected to the rod (311). A spring (313) is sleeved on the rod (311). The two ends of the spring (313) are fixedly connected to the top surface of the retaining ring (312) and the bottom surface of the horizontal plate (309), respectively. A pressure block (314) is fixedly connected to the bottom end of the rod (311).

6. The automated welding robot with protective function according to claim 1, characterized in that: The protective assembly (400) includes a slide rail (401), a slider (402), a positioning plate (403), a carrying plate (404), and a driven wheel (405). The slide rails (401) are provided in pairs, and the pair of slide rails (401) are fixedly installed on the worktable (104). The sliders (402) are slidably connected to the slide rails (401). A positioning plate (403) is fixedly connected between the sliders (402). A carrying plate (404) is installed on the positioning plate (403). Several sets of driven wheels (405) are rotatably connected to the carrying plate (404).

7. The automated welding robot with protective function according to claim 6, characterized in that: The two ends of the loading plate (404) are fixedly connected to a second bracket (406), and one end of the second bracket (406) is fixedly connected to a side plate (407). A pair of limiting wheels (408) are rotatably connected to the side plate (407).

8. The automated welding robot with protective function according to claim 7, characterized in that: The workbench (104) has a movable groove (410) in the middle between a pair of slide rails (401). A retaining plate (411) is provided inside the movable groove (410). One end of the retaining plate (411) is fixedly connected to the positioning plate (403). A cylinder (412) is fixedly installed on the workbench (104). The telescopic end of the cylinder (412) is fixedly connected to the other end of the retaining plate (411).

9. The automated welding robot with protective function according to claim 8, characterized in that: A main shaft (420) is rotatably connected to the worktable (104). One end of the main shaft (420) is fixedly connected to a drive wheel (421). A first pulley (422) is fixedly installed on the main shaft (420). A transmission belt (423) is sleeved on the first pulley (422). The other end of the transmission belt (423) is sleeved on a second pulley (424). A cover (425) is provided around the transmission belt (423). The cover (425) is installed on the worktable (104).

10. The automated welding robot with protective function according to claim 9, characterized in that: The second pulley (424) is fixedly connected to one end of the drive rod (426), and the other end of the drive rod (426) passes through the worktable (104) and is fixedly connected to the output end of the servo motor (427). The servo motor (427) is fixedly installed on the worktable (104).

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