Mechanical arm welding operation platform

Abstract

The application provides a mechanical arm welding operation platform, and belongs to the technical field of welding operation platforms. The mechanical arm welding operation platform comprises a base, a clamping assembly and a mounting assembly are arranged on the top of the base, two opposite vertical plates are fixedly connected to the top of the base, and the side walls of the vertical plates are fixedly connected with mounting strips. The mechanical arm welding operation platform further comprises a heat dissipation and debris prevention assembly, which is arranged on the vertical plate and is used for heat dissipation of a workpiece and prevention of influence of debris on positioning accuracy of the workpiece; and an auxiliary heat conduction assembly, which is arranged on the vertical plate and is used for automatic heat dissipation of the workpiece. The four-way pipe, the second gas distribution channel and the gas groove are arranged, so that the external gas source can continuously supply gas to the right-angle inner side of the hanged piece and the corresponding area of the second slot. During the welding process, the airflow blown out by the second gas distribution channel and the gas groove can cool the inner side area of the hanged piece close to the welding position, inhibit local temperature rise of the hanged piece, and reduce the deformation of the hanged piece caused by concentration of welding heat.

Description

Technical Field

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

[0002] Robotic arm welding workbenches are typically used in conjunction with robotic arms to perform workpiece positioning, clamping, and welding operations. For welding small workpieces such as hangers and support rods, existing workbenches usually incorporate magnetic structures at the positioning points to improve loading and positioning efficiency. Magnetic strips or blocks are used to attract and fix the workpiece to be welded, allowing it to quickly adhere to the predetermined position. This improves clamping efficiency and welding cycle time during continuous robotic arm welding.

[0003] However, at high continuous welding frequencies, welding heat is easily transferred along the workpiece and the positioning structure of the operating table to the magnetic attraction area, causing the temperature around the magnetic strip to rise continuously. Because the magnetic strip is exposed to a high temperature environment for a long time, it is prone to magnetic attenuation or even failure, which reduces the adsorption stability of workpieces such as hangers, causing positioning deviations during subsequent clamping. At the same time, iron filings and weld slag generated during welding can easily enter the magnetic positioning gap, further affecting the workpiece's fit accuracy.

[0004] How to invent a robotic arm welding workbench to improve these problems has become an urgent issue for those skilled in the art. Summary of the Invention

[0005] To overcome the above deficiencies, the present invention provides a robotic arm welding workbench, which aims to improve the problems mentioned in the background.

[0006] This invention is implemented as follows: This invention provides a robotic arm welding workbench, including a base, a clamping assembly and a mounting assembly on the top of the base, two opposing upright plates fixedly connected to the top of the base, mounting strips fixedly connected to the side walls of the upright plates, hanging plates magnetically mounted on the mounting strips, and a support rod on one side of each hanging plate. The workbench also includes: a heat dissipation and chip prevention assembly disposed on the upright plates, used for heat dissipation of the workpiece and prevention of chips from affecting the workpiece positioning accuracy; and an auxiliary heat conduction assembly disposed on the upright plates, used for automatic heat dissipation of the tooling.

[0007] Preferably, the clamping assembly includes a support base fixedly connected to the base, a support plate fixedly connected to the side wall of the support base, a support rod disposed on the support plate, an inclined plate fixedly connected to the top of the support base, a cylinder fixedly connected to the top of the inclined plate, a pressure plate fixedly connected to the bottom end of the piston rod at the bottom of the cylinder, and the pressure plate having an "L" shaped cross-section.

[0008] Preferably, the mounting assembly includes a first slot and a second slot formed on the side wall of the mounting strip. The mounting strip has a heat dissipation cavity and a magnetic suction cavity vertically formed. The magnetic suction cavity is arranged in an "L" shape, and multiple magnetic strips are fixedly installed inside the magnetic suction cavity.

[0009] Preferably, the heat dissipation and chip prevention assembly includes an air duct seat fixedly connected to the upright plate. The air duct seat has a main air duct and a first branch air duct inside. A baffle is fixedly connected to the top of the air duct seat. A four-way pipe is fixedly connected to the air duct seat. The pipe with the largest diameter of the four-way pipe is connected to an external air pump. The air duct seat has a second branch air duct and an air groove inside. The air groove is strip-shaped and located below the second groove opening. The second branch air duct corresponds to the right-angle position of the magnetically attached mounting piece on the mounting strip. The edge of the mounting strip corresponding to the right-angle position of the mounting piece is rounded. The bottom end of the mounting strip abuts against the upper surface of the air duct seat.

[0010] Preferably, the main air duct is horizontally arranged, the first branch air duct, the second branch air duct, and the air groove are all vertically arranged, the first branch air duct, the second branch air duct, and the air groove are all connected to the main air duct, and the main air duct is connected to the four-way pipe.

[0011] Preferably, a push rod is slidably connected inside the baffle, the end of the push rod is semi-elliptical, a first spring is fixedly connected to the end of the push rod, the end of the first spring is fixedly connected to the inner sidewall of the baffle, an auxiliary channel is provided on the baffle and is connected to the first air distribution channel, an airflow port is provided on the inner sidewall of the baffle and is strip-shaped and is connected to the auxiliary channel, and a through hole is provided on the push rod.

[0012] Preferably, the auxiliary heat-conducting component includes a heat dissipation pipe fixedly connected to the heat dissipation cavity and a tube body fixedly connected to the outer wall of the mounting strip. The heat dissipation cavity is filled with paraffin phase change material. A sealing cap is fixedly connected to the top of the heat dissipation cavity. A vent hole is opened through the tube body. A movable rod is slidably arranged on the inner wall of the tube body. A vertical through slot is opened on the movable rod. A second spring is fixedly connected to the end of the movable rod. The second spring abuts against the inner side of the end of the tube body. The end of the movable rod away from the second spring extends into the interior of the heat dissipation cavity through the side wall of the mounting strip.

[0013] Preferably, the heat dissipation pipes are arranged in a serpentine pattern and are distributed on the side wall of the heat dissipation cavity close to the magnetic strip. The movable rod and the pipe body are sealed together by a sealing ring.

[0014] Preferably, the auxiliary heat conduction component further includes a housing and a gear pump assembly fixedly connected to the vertical plate. The housing is provided with a fan blade slot, and a pneumatic fan blade is provided in the fan blade slot. A connecting rod shaft is rotatably connected to the side wall of the housing. The pneumatic fan blade is fixedly sleeved on the connecting rod shaft. The pneumatic fan blade is arc-shaped. Pneumatic pipes are fixedly connected to both the upper and lower side walls of the housing. The pneumatic pipes are connected to the fan blade slot. The connecting rod shaft is fixedly connected to the input end of the gear pump assembly.

[0015] Preferably, one of the connection ports on the four-way pipe is connected to one of the pneumatic pipes, the other pneumatic pipe is connected to a vent on one side of the pipe body, and the vent on the other side of the pipe body is connected to another connection port on the four-way pipe. The liquid inlet of the gear pump assembly is connected to an external heat transfer oil tank, the liquid outlet of the gear pump assembly is connected to one of the pipe ports extending to the outside of the heat dissipation pipe, and the other pipe port of the heat dissipation pipe is connected to the external heat transfer oil tank.

[0016] The beneficial effects of this invention are: 1. By setting up a four-way pipe, a second air distribution channel, and an air groove, an external air source can continuously supply air to the right-angled inner side of the mounting plate and the corresponding area of ​​the second groove. During welding, the airflow from the second air distribution channel and the air groove can cool the inner area of ​​the mounting plate near the welding position, suppressing local temperature rise and reducing deformation caused by concentrated welding heat. Simultaneously, after the mounting plate is removed, the push rod resets under the action of the first spring, connecting the through hole with the auxiliary channel, opening the airflow port. The airflow is blown out through the airflow port and flows upward after being blocked by the mounting strip, thereby cooling and cleaning the surface of the mounting strip and the positioning gap between the baffle and the mounting strip. This prevents the continuous accumulation of residual heat during continuous welding, reduces the risk of magnetic strip failure due to heat, prevents iron filings from entering the positioning gap, and improves the subsequent installation and positioning accuracy of the mounting plate.

[0017] 2. By placing paraffin phase change material inside the heat dissipation cavity, and in conjunction with a movable rod, long slot, pneumatic fan, and gear pump assembly, the temperature of the mounting strip rises to the phase change temperature of the paraffin phase change material. The paraffin phase change material absorbs heat, melts, and expands, pushing the movable rod to move and connect the long slot to the vent, thus opening the pneumatic bypass. After the pneumatic bypass is opened, the diverted airflow from the original air source in the four-way pipe drives the pneumatic fan to rotate, which in turn drives the gear pump assembly via the connecting rod shaft. This causes the heat transfer oil to circulate between the external heat transfer oil tank, the gear pump assembly, and the heat dissipation pipe. This allows for automatic enhanced heat dissipation using the original air source after the temperature rises, removing the heat absorbed by the paraffin phase change material, reducing heat accumulation near the mounting strip and magnetic strip during continuous welding, and improving the working stability of the magnetic positioning structure. Attached Figure Description

[0018] 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.

[0019] Figure 1 This is a three-dimensional structural diagram of a robotic arm welding operating table provided by an embodiment of the present invention; Figure 2 This is a schematic diagram of a robotic arm welding operation table mounting strip structure provided by an embodiment of the present invention; Figure 3 This is a schematic diagram of the slot position of a robotic arm welding operation table provided by an embodiment of the present invention; Figure 4 This is a schematic diagram of the position of the top rod of a robotic arm welding operating table provided by an embodiment of the present invention; Figure 5 This is a schematic diagram of the air duct position of a robotic arm welding operating table according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the air groove position of a robotic arm welding operation table according to an embodiment of the present invention; Figure 7 This is a schematic cross-sectional view of the air duct seat of a robotic arm welding operating table provided by an embodiment of the present invention; Figure 8 This is a schematic diagram of the cross-sectional structure of a robotic arm welding operation table tube provided in an embodiment of the present invention; Figure 9 This is a schematic diagram of the internal structure of a robotic arm welding operating table housing provided by an embodiment of the present invention; Figure 10 This is a schematic diagram of the position of the four-way pipe on the welding operation table of a robotic arm provided by an embodiment of the present invention.

[0020] In the diagram: 1. Base; 2. Vertical plate; 3. Hanging plate; 4. Support rod; 5. Mounting strip; 6. Air duct seat; 7. Baffle; 8. Pipe body; 9. Shell; 11. Support seat; 12. Support plate; 13. Inclined plate; 14. Cylinder; 15. Pressure plate; 51. First slot; 52. Second slot; 53. Heat dissipation cavity; 54. Magnetic suction cavity; 55. Magnetic strip; 56. Heat dissipation pipe; 61. Main air duct; 62. First branch air duct; 63. Four-way pipe; 64. Second branch air duct; 65. Air groove; 71. Top rod; 72. First spring; 73. Auxiliary channel; 74. Air inlet; 75. Through hole; 81. Vent hole; 82. Movable rod; 83. Long groove; 84. Second spring; 91. Fan blade groove; 92. Connecting rod shaft; 93. Pneumatic fan blade; 94. Gear pump assembly; 95. Pneumatic pipe. Detailed Implementation

[0021] 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.

[0022] Example, refer to Figures 1-2 A robotic arm welding workbench includes a base 1, with a clamping assembly and a mounting assembly on the top of the base 1. Two opposing upright plates 2 are fixedly connected to the top of the base 1. Mounting strips 5 are fixedly connected to the side walls of the upright plates 2. Hanging pieces 3 are magnetically mounted on the mounting strips 5. A support rod 4 is provided on one side of the hanging piece 3. The workbench also includes: a heat dissipation and chip prevention assembly, which is mounted on the upright plates 2 and is used for heat dissipation of the workpiece and to prevent chips from affecting the workpiece positioning accuracy; and an auxiliary heat conduction assembly, which is mounted on the upright plates 2 and is used for automatic heat dissipation of the tooling.

[0023] The clamping assembly includes a support base 11 fixedly connected to the base 1, a support plate 12 fixedly connected to the side wall of the support base 11, a support rod 4 disposed on the support plate 12, an inclined plate 13 fixedly connected to the top of the support base 11, a cylinder 14 fixedly connected to the top of the inclined plate 13, a pressure plate 15 fixedly connected to the bottom end of the piston rod at the bottom of the cylinder 14, and the cross section of the pressure plate 15 is arranged in an "L" shape.

[0024] It should be noted that the inclined plate 13 is inclined downwards. When the piston rod of the cylinder 14 pushes the pressure plate 15 downwards, the pressure plate 15 can generate a downward pressing force and a lateral pressing force on the support rod 4. The downward pressing force is used to press the support rod 4 tightly onto the support plate 12, and the lateral pressing force is used to make the support rod 4 abut against the side wall of the base 1, thereby realizing the synchronous clamping and positioning of the support rod 4 in the vertical and horizontal directions, and improving the positional stability of the support rod 4 before welding with the hanging piece 3.

[0025] The mounting assembly includes a first slot 51 and a second slot 52 formed on the side wall of the mounting strip 5. A heat dissipation cavity 53 and a magnetic suction cavity 54 are vertically formed on the mounting strip 5. The magnetic suction cavity 54 is L-shaped, and multiple magnetic strips 55 are fixedly installed inside it. The magnetic strips 55 are distributed in an L-shape, and their distribution shape matches the shape of the hanging piece 3, used to magnetically attract and adhere the hanging piece 3 to the mounting strip 5, allowing the hanging piece 3 to be stably attached and fixed to it.

[0026] Reference Figures 1-7The heat dissipation and dust prevention component includes an air duct seat 6 fixedly connected to the upright plate 2. The air duct seat 6 has a main air duct 61 and a first branch air duct 62 inside. A baffle 7 is fixedly connected to the top of the air duct seat 6. A four-way pipe 63 is fixedly connected to the air duct seat 6. The pipe with the largest diameter of the four-way pipe 63 is connected to an external air pump. The air duct seat 6 has a second branch air duct 64 and an air groove 65 inside. The air groove 65 is strip-shaped and located below the second groove opening 52. The second branch air duct 64 corresponds to the right-angle position of the hanging piece 3 on the mounting strip 5. The edge of the mounting strip 5 corresponding to the right-angle position of the hanging piece 3 is rounded. The bottom end of the mounting strip 5 abuts against the upper surface of the air duct seat 6.

[0027] It should be noted that when the mounting plate 3 is installed on the mounting strip 5, a vertical flow channel is formed between the corner of the mounting plate 3 and the rounded corner of the mounting strip 5. The airflow blown out by the second air distribution channel 64 can flow upward along this vertical flow channel, thereby directional heat dissipation to the right-angle area of ​​the mounting plate 3. The strip-shaped air groove 65 is adapted to the width of the second groove 52 and is used to guide the airflow through the second groove 52 to the inner wall of the mounting plate 3, so that the back of the mounting plate 3 is cooled during the welding process, while avoiding the airflow directly impacting the welding shielding gas area.

[0028] The main air passage 61 is horizontally arranged, while the first branch air passage 62, the second branch air passage 64, and the air groove 65 are all vertically arranged. The first branch air passage 62, the second branch air passage 64, and the air groove 65 are all connected to the main air passage 61, and the main air passage 61 is connected to the four-way pipe 63.

[0029] A push rod 71 is slidably connected inside the baffle 7. The end of the push rod 71 is semi-elliptical. A first spring 72 is fixedly connected to the end of the push rod 71. The end of the first spring 72 is fixedly connected to the inner side wall of the baffle 7. An auxiliary channel 73 is provided on the baffle 7. The auxiliary channel 73 is connected to the first air distribution channel 62. An airflow port 74 is provided on the inner side wall of the baffle 7. The airflow port 74 is strip-shaped and is connected to the auxiliary channel 73. A through hole 75 is provided through the push rod 71.

[0030] It should be noted that the top rod 71 is provided with an anti-rotation boss, and the inner side wall of the baffle 7 is provided with a limiting groove that slides with the anti-rotation boss. After the anti-rotation boss and the limiting groove are engaged, on the one hand, it can prevent the top rod 71 from rotating arbitrarily and ensure the relative position between the through hole 75 and the auxiliary channel 73 is stable; on the other hand, it can limit the extension length of the top rod 71 and prevent the top rod 71 from extending too far and affecting the insertion of the hanging piece 3.

[0031] When the hanging plate 3 is installed between the baffle 7 and the mounting strip 5 and slides downwards, the hanging plate 3 presses against the semi-elliptical portion at the end of the push rod 71, causing the push rod 71 to retract into the baffle 7. Since the protruding length of the semi-elliptical portion at the end of the push rod 71 is greater than the radius of the push rod 71, the hanging plate 3 can push the push rod 71 to produce a large axial displacement under relatively small thickness compression, thereby reducing the machining accuracy requirements and sealing difficulty between the push rod 71 and the baffle 7. When the push rod 71 is compressed into the baffle 7 by the hanging plate 3, the through hole 75 on the push rod 71 is misaligned with the auxiliary channel 73, and the through hole 75 is blocked and sealed by the inner wall of the baffle 7, thereby reducing the large amount of air leakage through the through hole 75 and preventing airflow from blowing out from near the suspension hole of the hanging plate 3, which would affect the welding shielding gas.

[0032] Reference Figures 8-10 The auxiliary heat-conducting component includes a heat dissipation pipe 56 fixedly connected to the heat dissipation cavity 53 and a tube body 8 fixedly connected to the outer wall of the mounting strip 5. The heat dissipation cavity 53 is filled with paraffin phase change material. A sealing cap is fixedly connected to the top of the heat dissipation cavity 53. A vent hole 81 is opened through the tube body 8. A movable rod 82 is slidably arranged on the inner wall of the tube body 8. A vertical through slot 83 is opened on the movable rod 82. A second spring 84 is fixedly connected to the end of the movable rod 82. The second spring 84 abuts against the inner side of the end of the tube body 8. The end of the movable rod 82 away from the second spring 84 extends into the interior of the heat dissipation cavity 53 through the side wall of the mounting strip 5.

[0033] It should be noted that the sealing cap is used to seal the heat dissipation cavity 53. By selecting appropriate thickness and connection strength, the sealing cap can withstand the pressure generated during the liquefaction and expansion of the paraffin phase change material, preventing leakage or bulging deformation of the heat dissipation cavity 53. When the paraffin phase change material has not liquefied and expanded, the movable rod 82 is not pushed, and the long groove 83 is misaligned with the vent hole 81. The long groove 83 is sealed by the inner wall of the tube body 8, thus preventing excessive airflow through it. The length of the long groove 83 is set according to the expansion displacement range of the paraffin phase change material, ensuring that the long groove 83 remains connected to the vent hole 81 even when the paraffin phase change material pushes the movable rod 82 at different melting levels, thus guaranteeing the continuous opening of the pneumatic bypass. Anti-rotation protrusions can be provided on the movable rod 82, and corresponding anti-rotation grooves are provided on the inner wall of the tube body 8. Through the sliding cooperation between the anti-rotation protrusions and the anti-rotation grooves, arbitrary rotation of the movable rod 82 is prevented, ensuring a stable connection between the long groove 83 and the vent hole 81.

[0034] The heat dissipation pipes 56 are arranged in a serpentine pattern and are distributed on the side wall of the heat dissipation cavity 53, which is close to the magnetic strip 55. The movable rod 82 and the tube body 8 are sealed by a sealing ring. The sealing ring is used to seal the mating gap between the movable rod 82 and the tube body 8, preventing the liquefied paraffin phase change material from entering the gap and avoiding the paraffin phase change material from cooling and solidifying and hindering the normal sliding of the movable rod 82.

[0035] The auxiliary heat conduction assembly also includes a housing 9 and a gear pump assembly 94 fixedly connected to the vertical plate 2. The housing 9 is provided with a fan blade groove 91 and a pneumatic fan blade 93. A connecting rod shaft 92 is rotatably connected to the side wall of the housing 9. The pneumatic fan blade 93 is fixedly sleeved on the connecting rod shaft 92 and is arc-shaped. Pneumatic pipes 95 are fixedly connected to the upper and lower side walls of the housing 9. The pneumatic pipes 95 are connected to the fan blade groove 91. The connecting rod shaft 92 is fixedly connected to the input end of the gear pump assembly 94.

[0036] It should be noted that the gear pump assembly 94 includes a pump body, two meshing gears, and a central shaft fixed to the center of each gear. One of the central shafts passes through the pump body and is fixedly connected to the connecting rod shaft 92. Thus, when the pneumatic fan 93 drives the connecting rod shaft 92 to rotate, the connecting rod shaft 92 can synchronously drive the gear pump assembly 94 to operate, so that the heat transfer oil in the external heat transfer oil tank is transported through the gear pump assembly 94 to the heat dissipation pipe 56, and heat exchange occurs between the heat transfer pipe 56 and the paraffin phase change material in the heat dissipation cavity 53.

[0037] The inner wall of the blade slot 91 near the outer edge of the aerodynamic blade 93 is arc-shaped. This arc-shaped inner wall matches the outer contour of the aerodynamic blade 93, reducing ineffective disturbances in the airflow within the blade slot 91 and improving the driving efficiency of the airflow on the aerodynamic blade 93. The aerodynamic blade 93 is arc-shaped, with its concave surface facing upstream of the airflow, allowing the airflow entering the blade slot 91 to act more fully on the aerodynamic blade 93, thereby increasing the force-bearing area and rotational driving torque of the aerodynamic blade 93. The aerodynamic blade 93 partially obstructs the airflow entering the aerodynamic tube 95 within the blade slot 91, causing the airflow to drive the aerodynamic blade 93 to rotate before flowing out of the blade slot 91, thus enhancing the conversion of airflow energy into rotational power.

[0038] One of the connectors on the four-way pipe 63 is connected to one of the pneumatic pipes 95, the other pneumatic pipe 95 is connected to the vent 81 on one side of the pipe body 8, the vent 81 on the other side of the pipe body 8 is connected to another connector on the four-way pipe 63, the inlet of the gear pump assembly 94 is connected to the external heat transfer oil tank, the outlet of the gear pump assembly 94 is connected to one of the pipe openings of the heat dissipation pipe 56 extending to the outside, and the other pipe opening of the heat dissipation pipe 56 is connected to the external heat transfer oil tank.

[0039] The working principle of this robotic arm welding platform is as follows: During operation, a pair of hanging plates 3 are first magnetically attached to their corresponding mounting strips 5, and the hanging plates 3 are slid downwards along the mounting strips 5 until the bottom end of the hanging plate 3 is in contact with the upper surface of the air duct seat 6, thus completing the initial positioning of the hanging plates 3. Then, the support rod 4 is placed on the support plate 12, and the control cylinder 14 drives the pressure plate 15 to move downwards, so that the pressure plate 15 presses and positions the support rod 4, thereby fixing the relative welding position between the support rod 4 and the hanging plate 3.

[0040] After clamping, air is supplied to the four-way pipe 63 via an external air pump. The airflow enters the main air passage 61 through the four-way pipe 63, and then flows into the second branch air passage 64 and the air groove 65. Specifically, the airflow from the second branch air passage 64 flows upward along the vertical guide channel formed between the inner right-angle side of the hanger 3 and the rounded corner edge of the mounting strip 5, dissipating heat from the right-angle area of ​​the hanger 3. The airflow from the air groove 65 flows through the second groove opening 52 to the inner wall of the hanger 3, cooling the inner area of ​​the hanger 3 near the welding position. Because the airflow mainly flows upward along the side or inner side of the hanger 3, without directly impacting the weld pool area, it reduces the temperature rise of the hanger 3 while minimizing disturbance to the welding shielding gas.

[0041] After the hanging plate 3 is installed in place, the hanging plate 3 presses against the end of the push rod 71, causing the push rod 71 to retract into the baffle 7, and the first spring 72 is compressed. At this time, the through hole 75 on the push rod 71 is misaligned with the auxiliary channel 73, and the solid section of the push rod 71 blocks the auxiliary channel 73, preventing the airflow from entering the airflow port 74 through the auxiliary channel 73, thereby preventing the airflow from blowing out from near the suspension hole of the hanging plate 3 and avoiding the airflow at this location from affecting the stability of the welding shielding gas. At the same time, the airflow can also enter the pneumatic bypass where the shell 9 and the tube 8 are located through one of the connection ports of the four-way pipe 63; however, when the paraffin phase change material is not heated and expanded, the movable rod 82 blocks the vent hole 81, and the long groove 83 is not connected to the vent hole 81, so the pneumatic bypass is in a closed state, and the airflow cannot form an effective flow.

[0042] After welding, the combined workpiece formed by the hanging plate 3 and the support rod 4 is removed. At this time, the hanging plate 3 no longer presses against the top rod 71, the first spring 72 resets and pushes the top rod 71 outward, so that the through hole 75 connects with the auxiliary channel 73, thereby opening the airflow port 74. After the airflow is blown out through the airflow port 74, it is blocked by the mounting strip 5 and flows upward. Combined with the airflow continuously blown out by the second air distribution channel 64 and the air groove 65, it cools the surface of the mounting strip 5 and the positioning area of ​​the hanging plate 3, avoiding the continuous accumulation of residual heat during continuous welding and reducing the risk of the magnetic strip 55 failing due to heat. At the same time, the baffle 7 and the mounting strip 5 maintain a positive pressure state, which can prevent iron filings from entering between them, keep the top positioning surface of the air channel seat 6 clean, and thus ensure the positioning accuracy of the hanging plate 3.

[0043] The paraffin phase change material in the heat dissipation cavity 53 absorbs heat when the temperature of the mounting strip 5 rises, which reduces the temperature of the interlayer between the magnetic strip 55 and the paraffin phase change material, reduces the continuous accumulation of heat around the magnetic strip 55, and improves the efficiency of heat transfer from the vicinity of the magnetic strip 55 to the heat dissipation cavity 53, so that the temperature of the magnetic strip 55 can drop faster.

[0044] When the paraffin phase change material absorbs heat and melts, its volume increases, pushing the movable rod 82 to move. This compresses and stores the second spring 84, simultaneously connecting the originally misaligned long groove 83 with the vent holes 81 on both sides of the tube body 8, thus opening the pneumatic bypass flowing through the shell 9. The more paraffin phase change material melts, the greater the moving distance of the movable rod 82, the larger the connection area between the long groove 83 and the vent holes 81, and the greater the airflow through the fan blade groove 91. When the driving force of the airflow acting on the pneumatic fan blade 93 is greater than the starting resistance of the gear pump assembly 94, the pneumatic fan blade 93 begins to rotate and drives the gear pump assembly 94 through the connecting rod shaft 92, causing the heat transfer oil to flow in a circulation loop of "external heat transfer oil tank—gear pump assembly 94—heat dissipation pipe 56—external heat transfer oil tank". When the heat transfer oil flows through the heat dissipation pipe 56, it exchanges heat with the paraffin phase change material, thereby carrying away the heat absorbed by the paraffin phase change material, enabling it to continuously maintain the heat absorption and dissipation effect on the area near the magnetic strip 55 during continuous welding.

[0045] The melting temperature of the paraffin phase change material is selected based on the temperature resistance of the magnetic strip 55. The melting temperature of the paraffin phase change material is lower than the temperature at which the magnetic strip 55 experiences significant magnetic attenuation, but higher than the temperature under normal operating conditions on the workbench. Therefore, during continuous welding, as the temperature at the mounting strip 5 gradually rises and approaches the heat-sensitive range of the magnetic strip 55, the paraffin phase change material can melt and absorb heat in advance, buffering the heat near the magnetic strip 55 and reducing the impact of continuous heat accumulation on the magnetic attraction performance of the magnetic strip 55.

[0046] 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 invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A robotic arm welding operating table, comprising a base (1), wherein a clamping assembly and a mounting assembly are provided on the top of the base (1), two opposing upright plates (2) are fixedly connected to the top of the base (1), and mounting strips (5) are fixedly connected to the side walls of the upright plates (2), wherein hanging pieces (3) are magnetically mounted on the mounting strips (5), and a support rod (4) is provided on one side of the hanging pieces (3), characterized in that, Also includes: Heat dissipation and chip prevention assembly, the heat dissipation and chip prevention assembly is set on the upright plate (2), the heat dissipation and chip prevention assembly is used for heat dissipation of workpiece and to prevent chips from affecting the positioning accuracy of workpiece; An auxiliary heat-conducting component is disposed on the upright plate (2) and is used for automatic heat dissipation of the tooling.

2. The robotic arm welding operating table according to claim 1, characterized in that, The clamping assembly includes a support base (11) fixedly connected to the base (1), a support plate (12) fixedly connected to the side wall of the support base (11), a support rod (4) set on the support plate (12), an inclined plate (13) fixedly connected to the top of the support base (11), a cylinder (14) fixedly connected to the top of the inclined plate (13), a pressure plate (15) fixedly connected to the bottom end of the piston rod at the bottom of the cylinder (14), and the cross section of the pressure plate (15) is "L" shaped.

3. The robotic arm welding operating table according to claim 1, characterized in that, The mounting assembly includes a first slot (51) and a second slot (52) on the side wall of the mounting strip (5). A heat dissipation cavity (53) and a magnetic suction cavity (54) are vertically opened on the mounting strip (5). The magnetic suction cavity (54) is arranged in an "L" shape. Multiple magnetic strips (55) are fixedly installed inside the magnetic suction cavity (54).

4. The robotic arm welding operating table according to claim 3, characterized in that, The heat dissipation and dust prevention assembly includes an air duct seat (6) fixedly connected to the upright plate (2). A baffle (7) is fixedly connected to the top of the air duct seat (6). The air duct seat (6) has a main air duct (61) and a first branch air duct (62) inside. A four-way pipe (63) is fixedly connected to the air duct seat (6). The pipe with the largest diameter of the four-way pipe (63) is connected to an external air pump. The air duct seat (6) has a second branch air duct (64) and an air groove (65) inside. The air groove (65) is arranged in a strip shape. The air groove (65) is located below the second groove opening (52). The second branch air duct (64) corresponds to the right angle position of the hanging piece (3) magnetically installed on the mounting strip (5). The edge of the mounting strip (5) corresponding to the right angle position of the hanging piece (3) is rounded. The bottom end of the mounting strip (5) abuts against the upper surface of the air duct seat (6).

5. A robotic arm welding operating table according to claim 4, characterized in that, The main air passage (61) is horizontally arranged, and the first branch air passage (62), the second branch air passage (64) and the air groove (65) are all vertically arranged. The first branch air passage (62), the second branch air passage (64) and the air groove (65) are all connected to the main air passage (61). The main air passage (61) is connected to the four-way pipe (63).

6. A robotic arm welding operating table according to claim 5, characterized in that, A push rod (71) is slidably connected inside the baffle (7). The end of the push rod (71) is semi-elliptical. A first spring (72) is fixedly connected to the end of the push rod (71). The end of the first spring (72) is fixedly connected to the inner wall of the baffle (7). An auxiliary channel (73) is provided on the baffle (7). The auxiliary channel (73) is connected to the first air distribution channel (62). An airflow port (74) is provided on the inner wall of the baffle (7). The airflow port (74) is strip-shaped and is connected to the auxiliary channel (73). A through hole (75) is provided through the push rod (71).

7. A robotic arm welding operating table according to claim 6, characterized in that, The auxiliary heat-conducting component includes a heat dissipation pipe (56) fixedly connected to the heat dissipation cavity (53) and a tube body (8) fixedly connected to the outer wall of the mounting strip (5). The heat dissipation cavity (53) is filled with paraffin phase change material. A sealing cap is fixedly connected to the top of the heat dissipation cavity (53). A vent hole (81) is opened through the tube body (8). A movable rod (82) is slidably arranged on the inner wall of the tube body (8). A vertical through slot (83) is opened on the movable rod (82). A second spring (84) is fixedly connected to the end of the movable rod (82). The second spring (84) abuts against the inner side of the end of the tube body (8). The end of the movable rod (82) away from the second spring (84) extends into the interior of the heat dissipation cavity (53) through the side wall of the mounting strip (5).

8. A robotic arm welding operating table according to claim 7, characterized in that, The heat dissipation pipe (56) is arranged in a serpentine shape and is distributed on the side wall of the heat dissipation cavity (53) close to the magnetic strip (55). The movable rod (82) and the pipe body (8) are sealed together by a sealing ring.

9. A robotic arm welding operating table according to claim 8, characterized in that, The auxiliary heat conduction assembly also includes a housing (9) and a gear pump assembly (94) fixedly connected to the vertical plate (2). The housing (9) is provided with a fan blade groove (91) and a pneumatic fan blade (93) is provided in the fan blade groove (91). A connecting rod shaft (92) is rotatably connected to the side wall of the housing (9). The pneumatic fan blade (93) is fixedly sleeved on the connecting rod shaft (92). The pneumatic fan blade (93) is arc-shaped. Pneumatic pipes (95) are fixedly connected to the upper and lower side walls of the housing (9). The pneumatic pipes (95) are connected to the fan blade groove (91). The connecting rod shaft (92) is fixedly connected to the input end of the gear pump assembly (94).

10. A robotic arm welding operating table according to claim 9, characterized in that, One of the connection ports on the four-way pipe (63) is connected to one of the pneumatic pipes (95), the other pneumatic pipe (95) is connected to the vent (81) on one side of the pipe body (8), the vent (81) on the other side of the pipe body (8) is connected to another connection port on the four-way pipe (63), the liquid inlet of the gear pump assembly (94) is connected to the external heat transfer oil tank, the liquid outlet of the gear pump assembly (94) is connected to one of the pipe ports of the heat dissipation pipe (56) extending to the outside, and the other pipe port of the heat dissipation pipe (56) is connected to the external heat transfer oil tank.

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