A robot welding arm

Abstract

The application provides a kind of robot welding arm, belongs to welding robot technical field, including welding arm, welding arm is connected with welding torch assembly, one side of welding torch assembly is equipped with protective sleeve and electrically conductive nozzle, further comprising: eliminating component, eliminating component is connected with drive ring and turbine fan blade.The application has beneficial effects: by means of cylinder drive fixed cover moves along nozzle outer wall, realizes the mechanical scraping of nozzle outer wall slag, and through turbine fan blade reverse and blow hole forms high pressure annular air curtain, in the synchronous completion of nozzle forced air cooling and dust blowing, effectively reduces nozzle high temperature damage, and realizes efficient stripping to inner wall sintering slag by using the chamfer of scraping ring front end, guarantee airway unobstructed;And through the slope cooperation of sliding block and extrusion rod, spring energy storage and cutting column opposite movement, automatically complete welding wire end flat shearing while cleaning the nozzle inner wall, effectively solve the problem of irregular welding wire end, such as difficult arc, arc, sticky silk and unstable wire feeding.

Description

Technical Field

[0001] This invention relates to the field of welding robot equipment technology, and more specifically, to a robotic welding arm. Background Technology

[0002] A welding robot is a versatile, reprogrammable, automated manipulator primarily used for welding (including cutting and spraying) in industrial applications. These robots typically have three or more programmable axes and are commonly used in industrial automation. To accommodate different applications, the robot's last axis is usually equipped with a mechanical interface, such as a mounting base, to attach various tools or end effectors, such as welding clamps or welding torches, to perform operations such as welding, cutting, or thermal spraying.

[0003] However, welding processes generate a large amount of fumes, metal spatter, and harmful gases. If these are not collected and purified in time, they can easily pollute the production environment and penetrate the welding torch, causing rapid slag buildup and blockage of critical components such as nozzles and contact tips. At the same time, the sintered welding slag adhering to the inner and outer walls of the nozzle is difficult to clean automatically. Long-term use can lead to uneven shielding gas flow, shielding gas leakage or deviation, which in turn can cause defects such as weld porosity and poor weld formation. In addition, after welding, the welding wire tip is prone to melting into irregular spherical or burr-like shapes. If it is not smoothed in time, it will directly lead to difficulties in subsequent arc initiation, arc breakage, wire sticking, and arc blow. At the same time, the stability of wire feeding decreases and the wear of the contact tip is accelerated, affecting the reliability of equipment operation and the stability of welding quality. How to invent a robotic welding arm to solve these problems has become an urgent problem for those skilled in the art. Summary of the Invention

[0004] To overcome the above shortcomings, this invention provides a robotic welding arm that aims to solve the problems of generating a large amount of smoke, metal spatter, and harmful gases during the welding process, which easily pollute the production environment and penetrate into the welding torch, causing rapid slag accumulation and blockage of key components such as nozzles and contact tips. Furthermore, after welding, the welding wire tip is easily melted into irregular spherical or burr-like shapes. If it is not smoothed in time, it will directly lead to difficulties in subsequent welding arc initiation, arc breakage, wire sticking, and arc blow.

[0005] This invention is implemented as follows: This invention provides a robotic welding arm, including a welding arm connected to a welding torch assembly. One side of the welding torch assembly is provided with a protective sleeve and a conductive nozzle. The arm also includes: An elimination component is connected to the welding torch assembly, and the elimination component is connected to a drive ring and a turbine fan blade.

[0006] Preferably, the welding torch assembly includes a base, an anti-collision sensor, and a torch neck. One end of the base is fixedly connected to the welding arm, the other end of the base is fixedly connected to the anti-collision sensor, and the end of the anti-collision sensor away from the base is fixedly connected to the torch neck.

[0007] Preferably, the elimination assembly includes a nozzle, one end of which is fixedly connected to the gun neck, the inner wall of which is fixedly connected to a protective sleeve, the protective sleeve being fixedly connected to a conductive nozzle, and a slider being fixedly connected to the end of the nozzle away from the gun neck.

[0008] Preferably, the elimination assembly further includes a fixing cover, which is sleeved on the outside of the nozzle. One end of the fixing cover has a vent hole, and the other end of the fixing cover is detachably connected to a filter plate. A connecting ring is fixedly connected to the inner wall of the fixing cover, and the connecting ring is located above the filter plate.

[0009] Preferably, the side wall of the connecting ring is provided with a plurality of through holes arranged in a circumferential array, the inner wall of the through holes is rotatably connected to a sealing plate, the inner wall of the through holes is fixedly connected to a limit strip, and the inner wall of the fixing cover is provided with a plurality of air holes arranged in a circumferential array.

[0010] Preferably, the elimination assembly further includes a mounting ring, which is fixedly connected to the nozzle. A cylinder is provided on one side of the mounting ring, and the end of the cylinder away from the mounting ring is fixedly connected to a fixing cover.

[0011] Preferably, the elimination assembly further includes a support ring located at one end of the nozzle. An extension block is fixedly connected to the outer wall of the support ring, and a connecting rod is fixedly connected to the side wall of the extension block. The end of the connecting rod away from the extension block is fixedly connected to a fixing cover.

[0012] Preferably, the nozzle has a scraper ring inside, the outer wall of the scraper ring is slidably connected to the inner wall of the nozzle, a fixing plate is fixedly connected to one side of the scraper ring, one end of the fixing plate is fixedly connected to the support ring, and a sliding hole is opened on the side wall of the fixing plate.

[0013] Preferably, a protective cylinder is fixedly connected to the side wall of the fixing plate. The protective cylinder is provided with a return spring, a cutting column and a pressing rod inside. One end of the pressing rod is fixedly connected to the cutting column, and the other end of the pressing rod passes through a sliding hole and has a rounded corner. The cutting column is slidably connected to the inner wall of the protective cylinder.

[0014] Preferably, the return spring is sleeved on the outer wall of the cutting column, and the two ends of the return spring are fixedly connected to the inner wall of the protective cylinder and the side wall of the extrusion rod, respectively.

[0015] The beneficial effects of this invention are: 1. This invention integrates a drive ring, turbine blades, a fixed cover, and air blowing holes on the outside of the welding torch assembly. The drive ring drives the turbine blades to rotate forward, creating a negative pressure adsorption airflow. Combined with a filter plate and an automatically opening and closing sealing plate structure, it can collect and purify fumes and splashes in real time during welding, avoiding environmental pollution and component blockage. At the same time, the fixed cover is driven by a cylinder to move along the outer wall of the nozzle, achieving mechanical scraping of the welding slag on the outer wall of the nozzle. The turbine blades rotate in reverse and form a high-pressure annular air curtain with the air blowing holes. The nozzle is forced to cool and dust is blown away simultaneously with the slag scraping, effectively reducing high-temperature damage to the nozzle, extending the service life of the nozzle and internal conductive nozzles, protective sleeves, and other components, ensuring uniform and stable protective airflow, and improving the reliability of the welding process and the quality of weld formation.

[0016] 2. This invention uses a transmission connection between a fixed cover, connecting rod, support ring, and fixed plate to drive the scraper ring to slide synchronously along the inner wall of the nozzle. The chamfer at the front end of the scraper ring enables efficient stripping of sintered welding slag from the inner wall, ensuring unobstructed gas flow. Furthermore, through the inclined surface cooperation between the slider and the extrusion rod, the energy storage of the return spring, and the opposing movement of the cutting column, the welding wire end is automatically trimmed while the inner wall of the nozzle is being cleaned. This integrates welding slag cleaning and welding wire trimming, effectively solving problems such as difficulty in arc initiation, arc breakage, wire sticking, and unstable wire feeding caused by irregular welding wire ends. It simplifies the automated welding process and improves operational continuity and production efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of a robotic welding arm provided by an embodiment of the present invention; Figure 2 This is a schematic diagram of the welding gun assembly structure of a robotic welding arm provided by an embodiment of the present invention; Figure 3 This is a schematic diagram of the elimination component structure of a robotic welding arm provided by an embodiment of the present invention; Figure 4 This is a schematic diagram of the nozzle structure of a robotic welding arm provided by an embodiment of the present invention; Figure 5 This is a partial structural cross-sectional view of an elimination component of a robotic welding arm provided in an embodiment of the present invention; Figure 6 This invention provides a robotic welding arm. Figure 5Enlarged schematic diagram of the structure at point A in the middle; Figure 7 This is a schematic diagram of a fixing cover structure for a robotic welding arm provided by an embodiment of the present invention; Figure 8 This is a schematic diagram of the scraper ring structure of a robotic welding arm provided by an embodiment of the present invention; Figure 9 This is a schematic diagram of the scraping state structure of a robotic welding arm provided by an embodiment of the present invention; Figure 10 This is a schematic diagram of the cutting column motion state structure of a robotic welding arm provided by an embodiment of the present invention.

[0019] In the diagram: 1. Welding arm; 2. Welding torch assembly; 21. Fixing base; 22. Anti-collision sensor; 23. Torch neck; 3. Elimination assembly; 31. Mounting ring; 32. Cylinder; 33. Nozzle; 331. Slider; 34. Fixing cover; 341. Vent hole; 342. Through hole; 343. Connecting ring; 344. Sealing plate; 345. Limiting strip; 346. Air blowing hole; 35. Connecting rod; 36. Filter plate; 37. Extension block; 38. Support ring; 39. Fixing plate; 310. Scraper ring; 311. Protective cylinder; 312. Return spring; 313. Cutting column; 314. Extrusion rod; 3141. Rounded corner; 315. Sliding hole; 4. Protective sleeve; 5. Conductive nozzle; 6. Drive ring; 7. Turbine fan blade. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, 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.

[0021] Example 1 Reference Figures 1-10 A robotic welding arm includes a welding arm 1, a welding torch assembly 2 connected to the welding arm 1, a protective sleeve 4 and a conductive nozzle 5 on one side of the welding torch assembly 2, and further includes: Elimination component 3 is connected to welding torch component 2. Elimination component 3 is connected to drive ring 6 and turbine fan blade 7.

[0022] Furthermore, the welding torch assembly 2 includes a fixed base 21, an anti-collision sensor 22, and a torch neck 23. One end of the fixed base 21 is fixedly connected to the welding arm 1, and the other end of the fixed base 21 is fixedly connected to the anti-collision sensor 22. The end of the anti-collision sensor 22 away from the fixed base 21 is fixedly connected to the torch neck 23. The elimination assembly 3 includes a nozzle 33. One end of the nozzle 33 is fixedly connected to the torch neck 23. The inner wall of the nozzle 33 is fixedly connected to the protective sleeve 4. The protective sleeve 4 is fixedly connected to the conductive nozzle 5. A slider 331 is fixedly connected to the end of the nozzle 33 away from the torch neck 23.

[0023] It should be noted that: The welding torch assembly 2 is rigidly connected to the welding arm 1 via the fixed base 21. An anti-collision sensor 22 is installed between the fixed base 21 and the torch neck 23. During the welding process, when the welding torch accidentally collides with the workpiece or fixture, the anti-collision sensor 22 can detect the collision signal in time and feed it back to the control system to realize emergency stop protection and avoid damage to components such as the torch neck 23, nozzle 33, internal conductive nozzle 5, and protective sleeve 4. The front end of the torch neck 23 is fixedly connected to the nozzle 33 of the elimination assembly 3, forming the core working end of the welding torch. The protective sleeve 4 is fixedly installed on the inner wall of the nozzle 33, and the conductive nozzle 5 is coaxially fixed inside the protective sleeve 4, so that the conductive nozzle 5 and the nozzle 33 are arranged concentrically, ensuring that the welding wire is stably delivered from the center of the conductive nozzle 5, and the protective gas flows out evenly from the annular channel between the conductive nozzle 5 and the nozzle 33, forming a stable welding gas shield.

[0024] A slider 331 is fixedly installed at the end of the nozzle 33 away from the neck 23. The slider 331 is used to cooperate with the extrusion rod 314 inside the elimination assembly 3. When the scraper ring 310 moves along the inner wall of the nozzle 33 to clean, the contact and extrusion between the slider 331 and the extrusion rod 314 triggers the release of the stored energy of the reset spring 312, which drives the cutting column 313 to complete the flat shearing of the welding wire end. This allows the cleaning of the inner wall of the nozzle 33 and the welding wire shearing action to be realized simultaneously, improving the integration of the welding preparation process.

[0025] Reference Figures 2-5 Furthermore, the elimination assembly 3 also includes a fixing cover 34, which is sleeved on the outside of the nozzle 33. One end of the fixing cover 34 has a vent hole 341, and the other end of the fixing cover 34 is detachably connected to a filter plate 36. A connecting ring 343 is fixedly connected to the inner wall of the fixing cover 34, and the connecting ring 343 is located above the filter plate 36. The side wall of the connecting ring 343 has a plurality of circumferentially arranged through holes 342. The inner wall of the through holes 342 is rotatably connected to a sealing plate 344. A limit strip 345 is fixedly connected to the inner wall of the through holes 342. The inner wall of the fixing cover 34 has a plurality of circumferentially arranged blowing holes 346. The elimination assembly 3 also includes a mounting ring 31, which is fixedly connected to the nozzle 33. A cylinder 32 is provided on one side of the mounting ring 31, and the end of the cylinder 32 away from the mounting ring 31 is fixedly connected to the fixing cover 34.

[0026] It should be noted that: During the welding operation, the drive ring 6 can be activated. The drive ring 6 is equipped with an excitation coil, and the turbine blade 7 is equipped with a permanent magnet. After the drive ring 6 is energized, it forms a rotating magnetic field, which drives the turbine blade 7 to rotate in the forward direction under the action of electromagnetic coupling. The forward rotating turbine blade 7 forms a negative pressure adsorption airflow inside the fixed cover 34, which draws the fumes, harmful gases and high-temperature splash dust generated during welding into the fixed cover 34 from bottom to top. The airflow first passes through the filter plate 36 for dust interception and fume purification, preventing welding slag particles from entering the fixed cover 34 and causing component jamming. Under the negative pressure adsorption state, the airflow flows from bottom to top through the connecting ring 343. The wind force acts on the sealing plate 344 and pushes it to open outward around the hinge point, keeping the through hole 342 unobstructed, ensuring that the fumes pass through and are discharged smoothly, realizing the purification of fumes and environmental protection during the welding process. The drive ring 6 is electrically connected to the robot control system, and the forward and reverse rotation of the turbine blade 7 is switched by controlling the direction of the current.

[0027] After the welding process is completed on the workpiece, the robot control system issues a linkage command to move the welding head to the cleaning area, switch the turbine fan blade 7 from forward smoke mode to reverse rotation blowing mode, and simultaneously control the cylinder 32 to extend, pushing the fixed cover 34 to move steadily downward in a straight axial direction along the outer wall of the nozzle 33. The front end of the inner wall of the fixed cover 34 is provided with an annular scraping nozzle that matches the outer wall of the nozzle 33. The inner diameter of the scraping nozzle is slightly smaller than the maximum outer diameter of the outer wall of the nozzle 33, so that the inner wall of the fixed cover 34 can maintain contact with the outer wall of the nozzle 33 during the downward movement. Maintaining a continuous, uniform, and tight fit, and through a combination of axial sliding friction and radial extrusion scraping, it continuously and powerfully peels away and removes contaminants such as welding slag particles, metal spatter, and oxides that adhere to and sinter on the outer wall of nozzle 33 during the welding process. As the fixing cover 34 moves downward, the annular scraper scrapes and pushes stubborn welding slag off and outward from the surface of the outer wall of nozzle 33 layer by layer, detaching it from the wall and discharging it with the subsequent airflow, thereby restoring the clean and smooth state of the outer wall of nozzle 33. The fixing cover 34 is made of high-temperature resistant, high-hardness, and wear-resistant materials. Made of engineered plastic, specifically glass fiber reinforced polyetheretherketone (PEEK) or high-temperature resistant nylon composite material, this material possesses excellent heat resistance, wear resistance, and self-lubricating properties. It is not easily deformed or scratched on the outer wall of the nozzle 33 under high-temperature environments, and can maintain stable scraping dimensions over a long period, ensuring a continuous and stable scraping effect on welding slag. Simultaneously, the counter-rotating turbine blades 7 create a high-pressure airflow from top to bottom inside the fixed cover 34. This airflow generates continuous positive pressure within the closed cavity, which acts on the connecting ring 343. The sealing plate 344 is pressed tightly against the limiting strip 345, thereby completely blocking the through hole 342 and achieving a one-way seal of the internal flow channel of the fixed cover 34. With the through hole 342 closed, the high-pressure airflow can only be ejected outward at high speed along the air blowing holes 346 evenly distributed in a circular array on the inner wall of the fixed cover 34, forming a ring-shaped blowing air curtain around the nozzle 33, which powerfully blows the outer wall of the nozzle 33 in all directions without dead angles, quickly blowing away the scraped welding slag dust and preventing secondary adhesion of welding slag.

[0028] While blowing away welding slag, the annular blowing air curtain can also provide forced convection cooling to the outer wall of the nozzle 33, which is in a high-temperature state after welding. This quickly removes the large amount of heat accumulated inside the nozzle 33 through conduction and radiation, rapidly reducing the temperature of the nozzle 33 to the normal operating range. This effectively prevents the nozzle 33 from overheating, deforming, or aging due to continuous high temperatures. At the same time, it prevents damage to internal protective sleeves 4, conductive nozzles 5, and elastic mechanisms caused by high temperatures. Through the combination of the above structures, this device can simultaneously complete the three functions of outer wall scraping, high-pressure blowing, and forced cooling within a single operating cycle. This improves the cleanliness and heat dissipation efficiency of the nozzle 33, extends the service life of the nozzle 33 and related vulnerable parts, ensures uniform and stable protective gas flow, and thus improves the reliability of the welding process and the quality of weld formation.

[0029] Example 2 Reference Figures 5-10 Furthermore, the elimination component 3 also includes a support ring 38, which is located at one end of the nozzle 33. An extension block 37 is fixedly connected to the outer wall of the support ring 38, and a connecting rod 35 is fixedly connected to the side wall of the extension block 37. The end of the connecting rod 35 away from the extension block 37 is fixedly connected to the fixed cover 34. A scraping ring 310 is provided inside the nozzle 33. The outer wall of the scraping ring 310 is slidably connected to the inner wall of the nozzle 33. A fixing plate 39 is fixedly connected to one side of the scraping ring 310. One end of the fixing plate 39 is fixedly connected to the support ring 38, and a sliding hole 315 is provided on the side wall of the fixing plate 39.

[0030] It should be noted that: After the welding operation is completed, the cylinder 32 drives the fixed cover 34 to move axially along the outer wall of the nozzle 33. During the movement, the fixed cover 34 will move synchronously with the connecting rod 35 fixed to it. The connecting rod 35 is fixedly connected to the support ring 38 through the extension block 37, so that the axial movement of the fixed cover 34 can be stably and synchronously transmitted to the support ring 38, thereby driving the fixed plate 39 fixed to the support ring 38 to move linearly along the axial direction of the nozzle 33. The end of the fixed plate 39 is fixedly connected to the scraper ring 310. Therefore, the scraper ring 310 will slide axially along the inner wall of the nozzle 33 under the drive of the fixed plate 39, so that the outer circumferential surface of the scraper ring 310 is in close contact with the inner wall surface of the nozzle 33, and continuously and comprehensively mechanically scraping and peeling off the welding slag, spatter particles, oxides and carbon deposits that adhered and sintered on the inner wall of the nozzle 33 during the welding process.

[0031] The scraper ring 310 has an inclined guide chamfer at one end facing the inside of the nozzle 33. As the scraper ring 310 moves forward, this chamfer structure can exert a continuous radial compression and axial pushing effect on the stubborn welding slag that is tightly adhered to the inner wall of the nozzle 33 and is difficult to remove. This gradually pries up, peels off and pushes the welding slag from the inner wall surface, effectively preventing the welding slag from being squeezed and stuck between the scraper ring 310 and the inner wall of the nozzle 33, which would cause increased scraping resistance or component deformation. Through the above-mentioned transmission and scraping cooperation, the inner wall of the nozzle 33 can be kept clean and smooth, restoring the unobstructed and uniform air passage inside the nozzle 33. This ensures that the protective gas can flow out stably as required by the design and form a complete and effective protective gas cover. At the same time, it reduces welding defects such as porosity, weld blackening and poor protection caused by welding slag blockage and air passage deviation, thereby improving welding quality and the stability of equipment operation.

[0032] Furthermore, a protective cylinder 311 is fixedly connected to the side wall of the fixing plate 39. Inside the protective cylinder 311, there is a return spring 312, a cutting column 313, and a pressing rod 314. One end of the pressing rod 314 is fixedly connected to the cutting column 313, and the other end of the pressing rod 314 passes through the sliding hole 315 and has a rounded corner 3141. The cutting column 313 is slidably connected to the inner wall of the protective cylinder 311. The return spring 312 is sleeved on the outer wall of the cutting column 313, and both ends of the return spring 312 are fixedly connected to the inner wall of the protective cylinder 311 and the side wall of the pressing rod 314, respectively.

[0033] It should be noted that: As the scraper ring 310 moves axially along the inner wall of the nozzle 33 with the fixed plate 39, the protective cylinder 311, which is fixedly connected to the fixed plate 39, moves downward synchronously with the scraper ring 310. When the extrusion rod 314 at the front end of the protective cylinder 311 moves to the preset position and comes into contact with the slider 331 fixed at the end of the nozzle 33, under the continuous axial thrust, the rounded corner 3141 at the end of the extrusion rod 314 forms a sliding extrusion fit with the inclined surface of the slider 331, causing the extrusion rod 314 to be subjected to radial extrusion force and to contract and move inward along the sliding hole 315, thereby compressing the return spring 312 inside the protective cylinder 311, causing the return spring 312 to change from a naturally extended state to an energy-storing compressed state. When the elimination assembly 3 performs scraping, purging and cooling operations on the nozzle 33, the turbine fan blade 7 is in reverse blowing mode. In this state, a high-pressure airflow from top to bottom is formed inside the fixed cover 34. At this time, the filter plate 36 is in a closed and blocked state. The smoke, dust and tiny welding slag particles adsorbed on the surface of the filter plate 36 are shaken off, detached from the filter plate 36 and discharged outward with the airflow ejected from the air blowing hole 346, avoiding dust and welding slag from remaining on the surface of the filter plate 36 and causing blockage. During long-term use, the filter plate 36 adopts a detachable fixing structure. When a lot of dust is adsorbed and accumulated, the fixed cover 34 can be removed from the elimination component 3, and the filter plate 36 can be individually blown cleaned or washed and dried for repeated use without frequent replacement, reducing maintenance costs and consumable consumption, and ensuring long-term stable smoke adsorption and airflow effect. The filter plate 36 and the fixed cover 34 are connected by a snap-fit ​​or threaded structure, which facilitates quick disassembly.

[0034] As the extrusion rod 314 retracts inward, its end drives the cutting column 313, which is fixed to it, to move towards the center of the welding wire in sync. This causes the two sets of oppositely arranged cutting columns 313 to form a closed motion towards each other. The cutting edge at the front end of the cutting column 313 forms a shearing, extruding, and cutting action on the end of the welding wire, thereby quickly and smoothly removing the deformed and molten end of the welding wire after welding, obtaining a flat and regular end face of the welding wire, and providing stable conditions for the next welding arc initiation.

[0035] The protective sleeve 311 is made of high-temperature resistant glass fiber reinforced nylon, possessing excellent structural strength, insulation, and heat resistance. It maintains dimensional stability under the high-temperature environment of the nozzle 33, preventing heat deformation. The return spring 312 is made of high-temperature resistant alloy return spring steel, capable of withstanding the high temperatures in the nozzle 33 area for extended periods without annealing, softening, or loss of elasticity, ensuring reliable return and cyclic use of the shearing action. The cutting column 313 is made of high-hardness wear-resistant tool steel through quenching treatment, with a sharp and highly wear-resistant cutting edge, enabling continuous and smooth shearing of the welding wire without chipping or wear. The extrusion rod 314 is made of stainless steel, with a smooth surface and certain rigidity and wear resistance, forming a stable sliding fit with the slider 331, preventing jamming. The slider 331 is made of wear-resistant brass or high-hardness engineering plastic, which has good sliding friction performance and can maintain stable guiding and extrusion triggering effects in high-temperature environments, thereby improving the service life and operational reliability of the overall mechanism. The return spring 312 is made of high-temperature alloy spring steel, specifically Inconel 718 high-temperature alloy spring material or 30W4Cr2VA heat-resistant spring steel. Its long-term working temperature can reach over 500℃. It will not anneal, soften, lose elasticity, or undergo permanent deformation in the high-temperature environment of the nozzle 33 area, and can maintain stable elastic return performance, ensuring that the cutting column 313 and the extrusion rod 314 can reliably return to their original positions after multiple cycles of operation, thereby improving the service life and operational stability of the shearing mechanism.

[0036] It should be noted that the specific model and specifications of the electrical components need to be selected and determined based on the actual specifications of the device. The specific selection and calculation methods adopt existing technologies in this field, so they will not be described in detail here.

[0037] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A robotic welding arm, comprising a welding arm (1), wherein the welding arm (1) is connected to a welding torch assembly (2), and one side of the welding torch assembly (2) is provided with a protective sleeve (4) and a conductive nozzle (5), characterized in that, Also includes: Elimination component (3) is connected to welding torch assembly (2), and the elimination component (3) is connected to drive ring (6) and turbine fan blade (7).

2. The robotic welding arm according to claim 1, characterized in that, The welding torch assembly (2) includes a fixed base (21), an anti-collision sensor (22), and a torch neck (23). One end of the fixed base (21) is fixedly connected to the welding arm (1), and the other end of the fixed base (21) is fixedly connected to the anti-collision sensor (22). The end of the anti-collision sensor (22) away from the fixed base (21) is fixedly connected to the torch neck (23).

3. The robotic welding arm according to claim 2, characterized in that, The elimination component (3) includes a nozzle (33), one end of which is fixedly connected to the gun neck (23), the inner wall of which is fixedly connected to the protective sleeve (4), the protective sleeve (4) is fixedly connected to the conductive nozzle (5), and a slider (331) is fixedly connected to the end of the nozzle (33) away from the gun neck (23).

4. A robotic welding arm according to claim 3, characterized in that, The elimination component (3) also includes a fixing cover (34), which is sleeved on the outside of the nozzle (33). One end of the fixing cover (34) is provided with a vent hole (341), and the other end of the fixing cover (34) is detachably connected to a filter plate (36). A connecting ring (343) is fixedly connected to the inner wall of the fixing cover (34), and the connecting ring (343) is located above the filter plate (36).

5. A robotic welding arm according to claim 4, characterized in that, The connecting ring (343) has several through holes (342) arranged in a circular array on its side wall. A sealing plate (344) is rotatably connected to the inner wall of the through hole (342). A limit strip (345) is fixedly connected to the inner wall of the through hole (342). The fixed cover (34) has several air holes (346) arranged in a circular array on its inner wall.

6. A robotic welding arm according to claim 5, characterized in that, The elimination component (3) also includes a mounting ring (31), which is fixedly connected to the nozzle (33). A cylinder (32) is provided on one side of the mounting ring (31), and the end of the cylinder (32) away from the mounting ring (31) is fixedly connected to the fixing cover (34).

7. A robotic welding arm according to claim 6, characterized in that, The elimination component (3) also includes a support ring (38), which is located at one end of the nozzle (33). An extension block (37) is fixedly connected to the outer wall of the support ring (38), and a connecting rod (35) is fixedly connected to the side wall of the extension block (37). The end of the connecting rod (35) away from the extension block (37) is fixedly connected to the fixing cover (34).

8. A robotic welding arm according to claim 7, characterized in that, The nozzle (33) is provided with a scraping ring (310) inside. The outer wall of the scraping ring (310) is slidably connected to the inner wall of the nozzle (33). A fixing plate (39) is fixedly connected to one side of the scraping ring (310). One end of the fixing plate (39) is fixedly connected to the support ring (38). A sliding hole (315) is opened on the side wall of the fixing plate (39).

9. A robotic welding arm according to claim 8, characterized in that, The side wall of the fixed plate (39) is fixedly connected to a protective cylinder (311). The inside of the protective cylinder (311) is provided with a reset spring (312), a cutting column (313) and a pressing rod (314). One end of the pressing rod (314) is fixedly connected to the cutting column (313), and the other end of the pressing rod (314) passes through the sliding hole (315) and has a rounded corner (3141). The cutting column (313) is slidably connected to the inner wall of the protective cylinder (311).

10. A robotic welding arm according to claim 9, characterized in that, The reset spring (312) is sleeved on the outer wall of the cutting column (313), and the two ends of the reset spring (312) are fixedly connected to the inner wall of the protective cylinder (311) and the side wall of the extrusion rod (314), respectively.

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