Welding mechanical arm for fitness equipment machining

Abstract

The invention relates to a welding mechanical arm for fitness equipment processing, and belongs to the technical field of welding mechanical arm production, the welding mechanical arm comprises a fixing assembly, the fixing assembly comprises a hoisting ring, a middle plate is fixedly mounted in the hoisting ring, an annular rail is fixedly mounted at the lower end of the hoisting ring, and a base assembly is slidably mounted on the annular rail; a mechanical large arm assembly, a mechanical auxiliary arm assembly and a mechanical small arm assembly which are connected through a servo motor are rotationally installed at the lower end of the base assembly, a welding assembly is fixedly installed at the tail end of the mechanical small arm assembly, and a gas treatment assembly is fixedly installed at the lower end of the middle plate. The base assembly annularly moves on the hoisting ring, the telescopic mechanical large arm assembly, the telescopic mechanical auxiliary arm assembly and the telescopic mechanical small arm assembly are arranged, the flexibility in the welding process is improved, a gas spraying head and a laser heater are adopted for conducting pretreatment and preheating on a welding seam, the welding quality is improved, and the gas treatment assembly is adopted; and flue gas generated during welding can be conveniently purified, and gas can be conveniently supplied to the gas spraying head.

Description

Technical Field

[0001] The present invention relates to the technical field of welding robot production, and particularly to a welding robot for fitness equipment processing. Background Art

[0002] Fitness equipment is a sports apparatus used to assist people with fitness needs to achieve the effects of auxiliary exercise and physical strengthening. When processing fitness equipment, various parts need to be assembled, and welding is one of the important assembly methods. Currently, when welding fitness equipment, the common methods are manual welding or robotic arm welding. During manual welding, the labor intensity is relatively high, the processing efficiency is low, and the welding accuracy varies from person to person, resulting in uneven product quality. When using a robotic arm for welding, automated and high-precision welding operations can be achieved, thereby improving production efficiency and reducing errors and safety hazards in manual operations. However, most current welding robotic arms use five-axis or six-axis robotic arms to flexibly adjust the position of the welding torch for welding and processing the equipment. However, during use, due to the fixed arm length of the robotic arm and the large number of irregular shapes in fitness equipment, there are welds between circular pipe fittings. In application, it is difficult to cover each welding position, and the current welding robotic arms are often installed on one side of the welding table and can only load and unload materials from the other side, resulting in limited working area, reduced welding efficiency, and during welding, the welding torch directly welds the weld seam. When there are foreign objects or the temperature is low at the weld seam position, the welding quality will be reduced, and the stress at the welding position will be relatively large. During later use, there is a risk of cracking. Moreover, during welding, a large amount of smoke is generated, causing environmental pollution to the surrounding area and affecting the physical and mental health of the staff. Summary of the Invention

[0003] To overcome the technical defects existing in the prior art, the present invention provides a welding robot for fitness equipment processing, which has the effects of pre-treating the weld seam, improving the welding effect, having high flexibility, facilitating full coverage of welding points, reducing the floor area occupied, and treating the gas environment during welding.

[0004] The technical solution adopted by the present invention is as follows: A welding robotic arm for fitness equipment processing, including a fixing component. The fixing component includes a lifting ring, inside which an intermediate plate is fixedly installed. At the lower end of the lifting ring, an annular rail is fixedly installed, and a base component is slidably installed on the annular rail. At the lower end of the base component, a main robotic arm component is rotatably installed. At the end of the main robotic arm component, a secondary robotic arm component is rotatably installed. At the end of the secondary robotic arm component, a small robotic arm component is rotatably installed. Between the main robotic arm component and the secondary robotic arm component, and between the secondary robotic arm component and the small robotic arm component, they are rotatably connected through servo motors. At the end of the small robotic arm component, a welding component is fixedly installed. And at the lower end of the intermediate plate, a gas treatment component is fixedly installed. The output end of the gas treatment component is communicated with one side of the welding component. When in use, through the lifting ring, this technical solution is installed on the top of the workshop or on the truss by means of hoisting, which reduces the occupation of the ground space. Place the external welding bed directly below the lifting ring, which is convenient for loading and unloading operations around the welding bed and improves the operation space. Through the base component, the main robotic arm component, the secondary robotic arm component, the small robotic arm component and the welding component, as well as the telescoping of the main robotic arm component, the secondary robotic arm component and the small robotic arm component, the welding position of the welding component can be comprehensively covered, improving the coverage effect of the welding points during welding. When welding, through the gas treatment component, the fumes generated during welding are purified, reducing the impact of the fumes generated during welding on the surrounding environment and the health of personnel, and supplying the purified gas into the welding component to pre-treat the weld position, avoiding the presence of dust or foreign objects at the weld position and affecting the welding quality.

[0005] Preferably, the structures of the main robotic arm component, the secondary robotic arm component and the small robotic arm component are the same, and they are all composed of a first connecting arm, a second connecting arm and an intermediate arm. The first connecting arm and the second connecting arm are inserted at both ends of the intermediate arm. At one end of the first connecting arm and the second connecting arm, hinge ears are fixedly installed. At the middle position inside the intermediate arm, a double-headed motor is fixedly installed, and screw rods are fixedly installed at the output ends of the double-headed motor. The screw rods penetrate through the intermediate arm and extend to the outside of the intermediate arm. The end parts of the two screw rods extend into the first connecting arm and the second connecting arm respectively. When in use, the double-headed motor drives the screw rods to rotate, causing the first connecting arm and the second connecting arm to move at both ends of the intermediate arm, so that the distance between the first connecting arm and the second connecting arm changes, achieving the effect of adjusting the lengths of the main robotic arm component, the secondary robotic arm component and the small robotic arm component, and increasing the flexibility during welding.

[0006] Preferably, slots are provided at one ends of the first connecting arm and the second connecting arm. The first connecting arm and the second connecting arm are sleeved at both ends of the middle arm through the slots. Threaded holes are provided inside the slots. One end of the lead screw is threadedly connected inside the threaded holes. And pipeline clamps are fixedly installed on one side of the first connecting arm and the second connecting arm, which is convenient for cable and pipeline routing. Through the slots, the stability of the connection between the first connecting arm, the second connecting arm and the middle arm is improved. And through the threaded holes, when the lead screw rotates, the positions of the first connecting arm and the second connecting arm change, which is convenient for length adjustment.

[0007] Preferably, fixing ears are fixedly installed on the outer side of the lifting ring in a circumferential array, and auxiliary ears are fixedly installed between the middle plate and the lifting ring. A ring groove is provided at the middle position of the lower end of the annular rail, and a retaining ring is fixedly installed on the inner side of the annular rail. The outer side of the lower end of the annular rail is of an L-shaped structure. The middle position of the upper end of the base assembly is slidably clamped inside the ring groove. During installation, through the fixing ears and the auxiliary ears, firm installation is facilitated. And through the ring groove, it is convenient to guide when the base assembly moves. Through the retaining ring and the outer L-shaped structure, the base assembly is prevented from separating from the annular rail in the fixing assembly.

[0008] Preferably, the base assembly includes a bottom plate, and a slider is fixedly installed at the middle position of the bottom plate. The slider is slidably clamped inside the ring groove. A clamping wheel is fixedly installed on the upper surface of the bottom plate on one side of the slider. The upper wheel and the lower wheel of the clamping wheel are respectively clamped at the upper end and the lower end of the retaining ring. A shaft rod is rotatably installed on the upper surface of the bottom plate on the other side of the slider. And a driving wheel is fixedly installed at one end of the shaft rod. The driving wheel is clamped inside the L-shaped structure on the outer side of the lower end of the annular rail. A driven sprocket is fixedly installed at the other end of the shaft rod. A driving motor is fixedly installed on one side of the lower surface of the bottom plate. A driving sprocket is fixedly installed at the output end of the driving motor. A chain is sleeved between the driving sprocket and the driven sprocket. During circular movement, through the clamping wheel and the driving wheel, the base assembly is clamped on the annular rail. And when the driving motor drives the driving sprocket to rotate, the driving wheel rotates, the bottom plate moves, and through the slider and the ring groove, the movement track of the bottom plate is guided.

[0009] Preferably, an electric swivel base is fixedly installed at the middle position of the lower surface of the bottom plate, and an adjustment motor is fixedly installed on one side of the output end of the electric swivel base. One end of the mechanical boom assembly is fixedly installed on the output shaft of the adjustment motor. Through the electric swivel base, it is convenient to adjust the angle of the mechanical boom assembly in the horizontal direction, and through the adjustment motor, it is convenient to adjust the angle of the mechanical boom assembly in the vertical direction.

[0010] Preferably, the welding assembly includes a connecting plate with a waist-shaped structure. One side of the upper end of the connecting plate is fixedly installed with a mechanical wrist, and the other end of the mechanical wrist is fixedly connected to one end of the mechanical forearm assembly. A welding torch is fixedly installed on the other side of the connecting plate. A jet head is fixedly installed at the end of the connecting plate opposite to the mechanical wrist. The input end of the jet head is connected to the output end of the gas treatment assembly through a hose. A laser heater is fixedly installed on the connecting plate between the jet head and the welding torch. Through the mechanical wrist, it is convenient to rotate the connecting plate to adjust the orientation of the welding torch. The jet head blows air to clean the weld position to prevent foreign objects from being at the weld position, and the laser heater preheats the weld position to reduce the temperature gradient between the welding area and the whole weldment, thereby reducing welding stress, reducing the welding strain rate, and avoiding welding cracks.

[0011] Preferably, the gas treatment assembly includes a fixed ring and an electric telescopic rod. The fixed ring is fixedly installed at the middle position of the lower surface of the middle plate. The lower end of the fixed ring is fixedly installed with a telescopic bellows. The lower end of the telescopic bellows is fixedly installed with an axial flow fan. The electric telescopic rod is fixedly installed at the middle position of the middle plate. The telescopic end of the electric telescopic rod is fixedly connected to the axial flow fan. Through the axial flow fan, the fumes generated during welding are drawn into the interior of the telescopic bellows. Through the electric telescopic rod, it is convenient to adjust the height of the axial flow fan to suit the air suction effect during welding under different working conditions.

[0012] Preferably, an annular filter material storage box is threadedly connected to the outer side of the fixing ring. An external thread is provided at the upper end of the outer surface of the fixing ring, and an internal thread is provided at the upper end of the inner side of the filter material storage box. The external thread is threadedly connected to the internal thread. A first air vent is provided in a circumferential array at the lower end of the fixing ring where the external thread is located, and a second air vent is provided in a circumferential array on the inner side of the filter material storage box. The inside of the fixing ring is communicated with the inside of the filter material storage box through the first air vent and the second air vent. When purifying air, the filter material is placed inside the filter material storage box. The filter material storage box is sleeved on the fixing ring from the position of the axial flow fan, and the filter material storage box is rotated so that the internal thread is connected to the external thread, which is convenient for fixing the filter material storage box and facilitating the replacement of the filter material. Through the first air vent and the second air vent, the air inside the fixing ring enters the inside of the filter material storage box, and the air is filtered and purified by the filter material.

[0013] Preferably, a slide rail is fixedly installed at the middle position of the periphery of the filter material storage box. A sliding ring is slidably clamped inside the slide rail, and a through hole is provided on the outer side wall of the filter material storage box. The through hole is communicated with the inner side of the slide rail. The inner side of the sliding ring is of a concave structure. A connecting pipe is fixedly installed on one side of the outside of the sliding ring. The inside of the filter material storage box is communicated with the connecting pipe through the through hole. An external hose is used to communicate the connecting pipe with the jet head, and the hose is clamped on the pipeline clamp. Through the through hole, it is convenient to supply air to the jet head. The sliding ring is rotatably installed on the slide rail, thereby avoiding the problem of pipeline entanglement when the base assembly makes a circumferential movement on the fixing assembly.

[0014] The beneficial effects of the present invention are as follows: 1. By adopting a hoisting method for installation, the operation range on the ground is increased, which is convenient for loading and unloading materials up and down around. During welding, the base assembly makes a circular movement on the hoisting ring, and through the telescopic main boom assembly, mechanical auxiliary boom assembly and mechanical small boom assembly, the flexibility during welding is increased, the coverage effect of welding points is improved, and it is convenient to weld special-shaped fitness equipment.

[0015] By using a jet head to blow air at the weld position, the influence of foreign objects on welding is reduced, and the weld is preheated by a laser heater, effectively reducing the temperature gradient between the welding area and the whole weldment, thereby reducing welding stress and the welding strain rate, which is beneficial to avoiding welding cracks and improving the stability during later use.

[0016] By adopting the gas treatment component, it is not only convenient to purify the fume generated during welding and optimize the surrounding environment, but also convenient to supply gas to the nozzle, clean the weld, and replace the filter material inside the filter material box, which is convenient for operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the structure of the fixing component in the present invention.

[0019] Figure 3 It is a structural schematic diagram of the base assembly in the present invention.

[0020] Figure 4 It is a schematic structural diagram of the base assembly in the present invention from another angle.

[0021] Figure 5 It is a structural schematic diagram of the position of the mechanical auxiliary arm assembly of the present invention.

[0022] Figure 6 It is a schematic diagram of the exploded structure of the mechanical arm assembly after being cut open in the present invention.

[0023] Figure 7 It is a structural schematic diagram of the position of the first connecting arm in the present invention.

[0024] Figure 8 It is a schematic diagram of the structure of the welding assembly in the present invention.

[0025] Figure 9 It is a schematic diagram of the structure of the gas processing component in the present invention.

[0026] Figure 10 It is a schematic diagram of the structure of the gas processing component after explosion in the present invention.

[0027] Description of the reference numerals in the drawings: In the figures: 1. Fixed component; 101. Lifting ring; 102. Intermediate plate; 103. Annular rail; 104. Fixed ear; 105. Auxiliary ear; 106. Annular groove; 107. Retaining ring; 2. Base component; 201. Base plate; 202. Slide block; 203. Clamping wheel; 204. Shaft rod; 205. Driving wheel; 206. Driven sprocket; 207. Driving motor; 208. Driving sprocket; 209. Chain; 2010. Electric swivel base; 2011. Adjusting motor; 3. Mechanical boom component; 4. Mechanical sub-boom component; 5. Mechanical forearm component; 6. Servo motor; 7. Welding component; 701. Connecting plate; 702. Mechanical wrist; 703. Welding torch; 704. Jet head; 705. Laser heater; 8. Gas treatment component; 801. Fixed ring; 802. Electric telescopic rod; 803. Telescopic bellows; 804. Axial flow fan; 805. Filter material holding box; 806. External thread; 807. Internal thread; 808. First ventilation hole; 809. Second ventilation hole; 8010. Slide rail; 8011. Slip ring; 8012. Through hole; 8013. Connecting pipe; 9. First connecting arm; 10. Second connecting arm; 11. Intermediate arm; 12. Hinge ear; 13. Double-headed motor; 14. Lead screw; 15. Slot; 16. Threaded hole; 17. Pipeline clamp. Detailed implementation manners

[0028] The present invention will be further described below with reference to the accompanying drawings: As Figures 1-10As shown in the figure, this embodiment provides a welding robot for fitness equipment processing, including a fixing component 1. The fixing component 1 includes a lifting ring 101. An intermediate plate 102 is fixedly installed inside the lifting ring 101. A circular rail 103 is fixedly installed at the lower end of the lifting ring 101. A base component 2 is slidably installed on the circular rail 103. A mechanical boom component 3 is rotatably installed at the lower end of the base component 2. A mechanical sub-boom component 4 is rotatably installed at the end of the mechanical boom component 3. A mechanical forearm component 5 is rotatably installed at the end of the mechanical sub-boom component 4. The mechanical boom component 3 and the mechanical sub-boom component 4, and the mechanical sub-boom component 4 and the mechanical forearm component 5 are rotationally connected by servo motors 6. A welding component 7 is fixedly installed at the end of the mechanical forearm component 5. A gas treatment component 8 is fixedly installed at the lower end of the intermediate plate 102. The output end of the gas treatment component 8 is communicated with one side of the welding component 7. When in use, through the lifting ring 101, this technical solution is installed on the top of the workshop or on the truss by means of hoisting, which reduces the occupation of ground space. Place the external welding bed directly below the lifting ring 101, which is convenient for loading and unloading operations around the welding bed, improving the operation space. The base component 2 moves circularly on the circular rail 103, the base component 2 rotates the mechanical boom component 3, and the angle between the base component 2 and the mechanical boom component 3 is adjusted. Through the servo motor 6, the angle between the mechanical boom component 3 and the mechanical sub-boom component 4, and the angle between the mechanical sub-boom component 4 and the mechanical forearm component 5 are adjusted. The welding component 7 rotates on the mechanical forearm component 5, and the mechanical boom component 3, the mechanical sub-boom component 4, and the mechanical forearm component 5 extend and retract, achieving a full range of coverage of the welding position of the welding component 7, improving the coverage effect of the welding points during welding, facilitating the welding operation of special-shaped fitness equipment, and improving the welding efficiency. During welding, through the gas treatment component 8, the fumes generated during welding are purified, reducing the impact of the fumes generated during welding on the surrounding environment and the health of personnel. During gas treatment, the purified gas is supplied into the welding component 7, which is convenient for pre-treating the weld position during welding processing, avoiding the presence of dust or foreign objects at the weld position and affecting the welding quality.

[0029] As a technical optimization solution of the present invention, specifically as Figures 5-7As shown in the figure, the structures of the mechanical boom assembly 3, the mechanical sub-boom assembly 4, and the mechanical forearm assembly 5 are the same, and they are all composed of a first connecting arm 9, a second connecting arm 10, and an intermediate arm 11. The first connecting arm 9 and the second connecting arm 10 are inserted at both ends of the intermediate arm 11. At one end of the first connecting arm 9 and the second connecting arm 10, a hinge ear 12 is fixedly installed. However, the hinge ear 12 may not be installed at the end of the second connecting arm 10 on the mechanical forearm assembly 5. The end of the second connecting arm 10 on the mechanical forearm assembly 5 is connected to the welding assembly 7. At the middle position inside the intermediate arm 11, a double-headed motor 13 is fixedly installed, and screw rods 14 are fixedly installed at the output ends of the double-headed motor 13. The screw rods 14 penetrate through the intermediate arm 11 and extend to the outside of the intermediate arm 11. The ends of the two screw rods 14 extend into the first connecting arm 9 and the second connecting arm 10 respectively. The first connecting arm 9 in the mechanical boom assembly 3 is fixedly connected to the output shaft of the adjustment motor 2011 in the base assembly 2. The second connecting arm 10 in the mechanical boom assembly 3 is rotatably connected to the first connecting arm 9 in the mechanical sub-boom assembly 4 through the servo motor 6. The second connecting arm 10 in the mechanical sub-boom assembly 4 is rotatably connected to the first connecting arm 9 in the mechanical forearm assembly 5 through the servo motor 6, which is convenient for flexibly adjusting the position of the welding assembly 7. When in use, the double-headed motor 13 drives the screw rods 14 to rotate, so that the first connecting arm 9 and the second connecting arm 10 move at both ends of the intermediate arm 11, causing the distance between the first connecting arm 9 and the second connecting arm 10 to change, achieving the effect of adjusting the lengths of the mechanical boom assembly 3, the mechanical sub-boom assembly 4, and the mechanical forearm assembly 5, increasing the flexibility during welding, and improving the adaptability to welding at different positions. At one end of both the first connecting arm 9 and the second connecting arm 10, a slot 15 is opened. The first connecting arm 9 and the second connecting arm 10 are sleeved at both ends of the intermediate arm 11 through the slot 15. A threaded hole 16 is opened inside the slot 15. One end of the screw rod 14 is threadedly connected to the inside of the threaded hole 16. And on one side of both the first connecting arm 9 and the second connecting arm 10, a pipeline clip 17 is fixedly installed, which is convenient for wiring the cables and pipelines. Through the slot 15, the stability of the connection between the first connecting arm 9, the second connecting arm 10, and the intermediate arm 11 is improved. And through the threaded hole 16, when the screw rod 14 rotates, the positions of the first connecting arm 9 and the second connecting arm 10 change, facilitating length adjustment.

[0030] As a technical optimization solution of the present invention, specifically as Figure 2As shown in the figure, fixed ears 104 are fixedly installed on the outer side of the lifting ring 101 in a circumferential array, and auxiliary ears 105 are fixedly installed between the middle plate 102 and the lifting ring 101. A ring groove 106 is opened at the middle position of the lower end of the annular rail 103, and a retaining ring 107 is fixedly installed on the inner side of the annular rail 103. The outer side of the lower end of the annular rail 103 is of an L-shaped structure. The middle position of the upper end of the base assembly 2 is slidably clamped inside the ring groove 106. During installation, through the fixed ears 104 and the auxiliary ears 105, it is convenient to fix this technical solution on the top or truss of an external workshop, facilitating firm installation. And through the ring groove 106, it is convenient to guide when the base assembly 2 moves. Through the retaining ring 107 and the outer L-shaped structure, it is avoided that the base assembly 2 is separated from the annular rail 103 in the fixed assembly 1, improving the stability during circular movement.

[0031] As a technical optimization scheme of the present invention, specifically as Figure 3 and Figure 4 shown in the figure, the base assembly 2 includes a bottom plate 201, and a slider 202 is fixedly installed at the middle position of the bottom plate 201. The slider 202 is slidably clamped inside the ring groove 106. A clamping wheel 203 is fixedly installed on the upper surface of the bottom plate 201 on one side of the slider 202. The upper and lower wheels of the clamping wheel 203 are respectively clamped at the upper and lower ends of the retaining ring 107. A shaft rod 204 is rotatably installed on the upper surface of the bottom plate 201 on the other side of the slider 202, and a driving wheel 205 is fixedly installed at one end of the shaft rod 204. The driving wheel 205 is clamped inside the L-shaped structure on the outer side of the lower end of the annular rail 103. A driven sprocket 206 is fixedly installed at the other end of the shaft rod 204. A driving motor 207 is fixedly installed on one side of the lower surface of the bottom plate 201. A driving sprocket 208 is fixedly installed at the output end of the driving motor 207. A chain 209 is sleeved between the driving sprocket 208 and the driven sprocket 206. During circular movement, through the clamping wheel 203 and the driving wheel 205, the base assembly 2 is clamped on the annular rail 103. When the driving motor 207 drives the driving sprocket 208 to rotate, through the chain 209, the driven sprocket 206 drives the driving wheel 205 to rotate, causing the bottom plate 201 to move. And through the slider 202 and the ring groove 106, the movement track of the bottom plate 201 is guided, enabling the base assembly 2 to perform circular movement along the annular rail 103. An electric swivel 2010 is fixedly installed at the middle position of the lower surface of the bottom plate 201, and an adjusting motor 2011 is fixedly installed on one side of the output end of the electric swivel 2010. One end of the mechanical boom assembly 3 is fixedly installed on the output shaft of the adjusting motor 2011. Through the electric swivel 2010, it is convenient to adjust the angle of the mechanical boom assembly 3 in the horizontal direction, and through the adjusting motor 2011, it is convenient to adjust the angle of the mechanical boom assembly 3 in the vertical direction.

[0032] As a technical optimization solution of the present invention, specifically as follows Figure 8 As shown, the welding assembly 7 includes a connecting plate 701 with a waist-shaped structure. One side of the upper end of the connecting plate 701 is fixedly installed with a robotic wrist 702. The other end of the robotic wrist 702 is fixedly connected to one end of the robotic forearm assembly 5. The other side of the connecting plate 701 is fixedly installed with a welding torch 703. One end of the connecting plate 701 opposite to the robotic wrist 702 is fixedly installed with a jet head 704. The input end of the jet head 704 is connected to the output end of the gas treatment assembly 8 through a hose. A laser heater 705 is fixedly installed on the connecting plate 701 between the jet head 704 and the welding torch 703. Through the robotic wrist 702, it is convenient to rotate the connecting plate 701 to adjust the orientation of the welding torch 703. Both the jet head 704 and the laser heater 705 are located in the advancing direction of the welding torch 703. The jet head 704 blows air to clean the weld position to avoid foreign objects at the weld position, and the laser heater 705 pre-heats the weld position to reduce the temperature gradient between the welding area and the whole workpiece, thereby reducing the welding stress, reducing the welding strain rate, avoiding welding cracks, improving the welding quality, and reducing the risk of later cracking.

[0033] As a technical optimization solution of the present invention, specifically as follows Figure 9 and Figure 10As shown, the gas treatment component 8 includes a fixed ring 801 and an electric telescopic rod 802. The fixed ring 801 is fixedly installed at the middle position of the lower surface of the middle plate 102. A telescopic bellows 803 is fixedly installed at the lower end of the fixed ring 801. An axial flow fan 804 is fixedly installed at the lower end of the telescopic bellows 803. The electric telescopic rod 802 is fixedly installed at the middle position of the middle plate 102, and the telescopic end of the electric telescopic rod 802 is fixedly connected to the axial flow fan 804. Through the axial flow fan 804, the fumes generated during welding are drawn into the interior of the telescopic bellows 803 and enter the interior of the fixed ring 801. And through the electric telescopic rod 802, it is convenient to adjust the height of the axial flow fan 804, which is suitable for the air suction effect during welding under different working conditions, and avoids affecting the welding operation during air suction. The outer side of the fixed ring 801 is threadedly connected with a filter material storage box 805 in a ring structure. An external thread 806 is provided at the upper end of the outer surface of the fixed ring 801, and an internal thread 807 is provided at the upper end of the inner side of the filter material storage box 805. The external thread 806 is threadedly connected with the internal thread 807. First ventilation holes 808 are arranged in a circumferential array at the lower end of the fixed ring 801 where the external thread 806 is located. Second ventilation holes 809 are arranged in a circumferential array on the inner side of the filter material storage box 805. The interior of the fixed ring 801 is communicated with the interior of the filter material storage box 805 through the first ventilation holes 808 and the second ventilation holes 809. When purifying the air, the filter material is placed in the interior of the filter material storage box 805. The filter material can be activated carbon, filter paper or filter cotton. After placing the filter material, the filter material storage box 805 is sleeved on the fixed ring 801 from the position of the axial flow fan 804, and the filter material storage box 805 is rotated so that the internal thread 807 is connected to the external thread 806, which is convenient to fix the filter material storage box 805 on the fixed ring 801, convenient for replacing the filter material, and easy to operate. And through the first ventilation holes 808 and the second ventilation holes 809, the air inside the fixed ring 801 enters the interior of the filter material storage box 805, and the air is filtered and purified by the filter material. A slide rail 8010 is fixedly installed at the middle position of the periphery of the filter material storage box 805. A slide ring 8011 is slidably clamped inside the slide rail 8010. A through hole 8012 is provided on the outer side wall of the filter material storage box 805, and the through hole 8012 is communicated with the inner side of the slide rail 8010. The inner side of the slide ring 8011 is of a concave structure. A connecting pipe 8013 is fixedly installed on the outer side of one side of the slide ring 8011. The interior of the filter material storage box 805 is communicated with the connecting pipe 8013 through the through hole 8012. An external hose is used to connect the connecting pipe 8013 to the jet head 704 and the hose is clamped on the pipeline clip 17, which is convenient for cable management. And through the through hole 8012, the filtered air enters the interior of the slide ring 8011, and the jet head 704 is supplied with air through the connecting pipe 8013. And the slide ring 8011 is rotatably installed on the slide rail 8010. Thus, when the base assembly 2 makes a circular motion on the fixing assembly 1,Problems leading to pipeline entanglement.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding robot arm for fitness equipment processing, characterized in that: The invention comprises a fixing assembly (1), wherein the fixing assembly (1) comprises a lifting ring (101), an intermediate plate (102) is fixedly mounted inside the lifting ring (101), an annular rail (103) is fixedly mounted at the lower end of the lifting ring (101), a base assembly (2) is slidably mounted on the annular rail (103), a mechanical arm assembly (3) is rotatably mounted at the lower end of the base assembly (2), a mechanical auxiliary arm assembly (4) is rotatably mounted at the end of the mechanical arm assembly (3), and the mechanical auxiliary arm assembly (4) is rotatably mounted on the lower end of the mechanical arm assembly (3). ) is rotatably mounted on the end of the intermediate plate (102); the mechanical arm assembly (3) and the mechanical auxiliary arm assembly (4), as well as the mechanical auxiliary arm assembly (4) and the mechanical arm assembly (5) are rotatably connected via a servo motor (6); a welding assembly (7) is fixedly mounted on the end of the mechanical arm assembly (5); and a gas processing assembly (8) is fixedly mounted on the lower end of the intermediate plate (102); an output end of the gas processing assembly (8) is connected to one side of the welding assembly (7).

2. The welding robot arm for fitness equipment processing according to claim 1, characterized in that: The mechanical arm assembly (3), the mechanical auxiliary arm assembly (4) and the mechanical small arm assembly (5) have the same structure and are all composed of a first connecting arm (9), a second connecting arm (10) and an intermediate arm (11); the first connecting arm (9) and the second connecting arm (10) are plugged into the two ends of the intermediate arm (11); one end of the first connecting arm (9) and the second connecting arm (10) are fixedly mounted with a hinge ear (12); a double-headed motor (13) is fixedly mounted at the middle position inside the intermediate arm (11); and the output ends of the double-headed motor (13) are fixedly mounted with a screw rod (14); the ends of the two screw rods (14) extend into the inside of the first connecting arm (9) and the inside of the second connecting arm (10), respectively.

3. The welding robot arm for fitness equipment processing according to claim 2, characterized in that: A slot (15) is provided at one end of each of the first connecting arm (9) and the second connecting arm (10); the first connecting arm (9) and the second connecting arm (10) are sleeved on two ends of the intermediate arm (11) through the slot (15); a threaded hole (16) is provided inside the slot (15); one end of the screw rod (14) is threadedly connected inside the threaded hole (16); and a pipeline clamp (17) is fixedly mounted on one side of each of the first connecting arm (9) and the second connecting arm (10).

4. The welding robot arm for fitness equipment processing according to claim 1, characterized in that: The outer side of the lifting ring (101) is fixedly mounted with fixing ears (104) in a circular array, and an auxiliary ear (105) is fixedly mounted between the intermediate plate (102) and the lifting ring (101). An annular groove (106) is provided in the middle position of the lower end of the annular rail (103), and a retaining ring (107) is fixedly mounted on the inner side of the annular rail (103). The outer side of the lower end of the annular rail (103) is an L-shaped structure, and the upper middle position of the base assembly (2) is slidably engaged in the annular groove (106).

5. The welding robot arm for fitness equipment processing according to claim 4, characterized in that: The base assembly (2) comprises a base plate (201), and a slider (202) is fixedly mounted in the middle of the base plate (201), the slider (202) is slidably engaged in the interior of the annular groove (106), a clamping wheel (203) is fixedly mounted on the upper surface of the base plate (201) located on one side of the slider (202), the upper wheel and the lower wheel of the clamping wheel (203) are respectively engaged in the upper end and the lower end of the retaining ring (107), and a shaft (203) is rotatably mounted on the upper surface of the base plate (201) located on the other side of the slider (202). 04), and a driving wheel (205) is fixedly mounted on one end of the shaft (204), and the driving wheel (205) is clamped inside the L-shaped structure outside the lower end of the annular rail (103), and a driven sprocket (206) is fixedly mounted on the other end of the shaft (204), and a driving motor (207) is fixedly mounted on one side of the lower surface of the base plate (201), and a driving sprocket (208) is fixedly mounted on the output end of the driving motor (207), and a chain (209) is sleeved between the driving sprocket (208) and the driven sprocket (206).

6. The welding robot arm for fitness equipment processing according to claim 5, characterized in that: An electric rotating seat (2010) is fixedly mounted in the middle of the lower surface of the base plate (201), and an adjusting motor (211) is fixedly mounted on one side of the output end of the electric rotating seat (2010), and one end of the mechanical arm assembly (3) is fixedly mounted on the output shaft of the adjusting motor (2011).

7. The welding robot arm for fitness equipment processing according to claim 1, characterized in that: The welding assembly (7) comprises a connecting plate (701) with a waist-shaped structure, a mechanical wrist (702) is fixedly mounted on one side of the upper end of the connecting plate (701), the other end of the mechanical wrist (702) is fixedly connected to one end of the mechanical arm assembly (5), a welding gun (703) is fixedly mounted on the other side of the connecting plate (701), an air jet (704) is fixedly mounted on the end of the connecting plate (701) opposite to the mechanical wrist (702), the input end of the air jet (704) is connected to the gas outlet end of the gas processing assembly (8) via a hose, and a laser heater (705) is fixedly mounted on the connecting plate (701) between the air jet (704) and the welding gun (703).

8. The welding robot arm for fitness equipment processing according to claim 1, characterized in that: The gas processing assembly (8) comprises a fixing ring (801) and an electric telescopic rod (802); the fixing ring (801) is fixedly mounted at a middle position of the lower surface of the middle plate (102); a telescopic bellows (803) is fixedly mounted at the lower end of the fixing ring (801); an axial flow fan (804) is fixedly mounted at the lower end of the telescopic bellows (803); and the electric telescopic rod (802) is fixedly mounted at a middle position of the middle plate (102); and the telescopic end of the electric telescopic rod (802) is fixedly connected to the axial flow fan (804).

9. The welding robot arm for fitness equipment processing according to claim 8, characterized in that: The outer side of the fixing ring (801) is threadedly connected to a filter material holding box (805) of an annular structure; an outer surface upper end of the fixing ring (801) is provided with an outer thread (806); an inner side upper end of the filter material holding box (805) is provided with an inner thread (807); the outer thread (806) and the inner thread (807) are threadedly connected; a first air hole (808) is provided in a circumferential array at the lower end of the outer thread (806) on the fixing ring (801); a second air hole (809) is provided in a circumferential array on the inner side of the filter material holding box (805); the interior of the fixing ring (801) is connected to the interior of the filter material holding box (805) via the first air hole (808) and the second air hole (809).

10. The welding robot arm for fitness equipment processing according to claim 9, characterized in that: A slide rail (8010) is fixedly installed at the middle position of the outer periphery of the filter material holding box (805), a slip ring (8011) is slidably engaged inside the slide rail (8010), and a through hole (8012) is opened on the outer wall of the filter material holding box (805), the through hole (8012) is connected to the inner side of the slide rail (8010), the inner side of the slip ring (8011) is a concave structure, and a connecting pipe (8013) is fixedly installed on one side of the outer side of the slip ring (8011), and the interior of the filter material holding box (805) is connected to the connecting pipe (8013) through the through hole (8012).

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