A welding equipment for oil return pipe joints

Abstract

This utility model provides a welding device for a return oil pipe joint, belonging to the field of welding technology. It includes a base on which a welding robot is mounted. The welding robot is used for welding between the ball end and the hose connection end. It also includes a heat dissipation mechanism, which includes a housing fixed to the base, with a support rod fixedly passing through the side of the housing. By setting up the heat dissipation mechanism, the heat outside the welding point on the ball end is transferred to the support block, and then the heat on the support block is carried away by gas, thus cooling the ball end. This prevents the sealing surface of the ball end from warping slightly due to high temperature, ensuring the sealing surface of the ball end and the seal between the sealing surface and the injector. When gas passes through the inside of the hose connection end, it also reduces the temperature of the hose connection end, preventing it from overheating, thereby reducing the impact on the quality of the hose connection end and ensuring its durability.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, and in particular to a welding equipment for oil return pipe joints. Background Technology

[0002] The return oil pipe connector is a core sealing component in the diesel engine fuel system used to connect the low-pressure return oil line. It mainly consists of two parts: a ball end and a hose connection end. The ball end seals against components such as the injector and fuel pump through a spherical or flat surface, which is crucial for preventing fuel line leaks. The hose connection end has a corrugated structure and is used to insert a rubber hose and then be crimped and fixed. In the production process, the ball end and the hose connection end are first positioned, and then the two parts are welded together by a welding robot.

[0003] During the welding process of the welding robot, the temperature at the welding point is relatively high. When the heat is transferred to the ball end, the ball end overheats and the sealing surface of the ball end warps slightly, affecting the sealing performance between the sealing surface of the ball end and the injector. Therefore, this application provides a return pipe joint welding device to meet the requirements. Utility Model Content

[0004] This utility model provides a welding device for oil return pipe joints to solve the problem that the sealing surface of the ball end will warp slightly due to heat, affecting the sealing performance between the sealing surface of the ball end and the injector.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A welding device for a return oil pipe joint includes a base on which a welding robot is mounted. The welding robot is used for welding between a ball end and a hose connection end. The device also includes:

[0007] The heat dissipation mechanism includes a housing fixed to a base, a support rod fixed through the side of the housing, a support block fixed to the end of the support rod, the support block supporting the ball end, a round hole on the top of the support block, a second channel on the side of the support block communicating with the round hole, an air inlet on the end of the support rod communicating with the second channel, an air pump fixed inside the housing, the air outlet of the air pump communicating with the second air inlet through a pipe, a support component at the bottom of the support block for fixing the ball end, and a pressing component on the side of the housing for positioning the hose connection end.

[0008] Preferably, a ring is fixed to the top of the support block, the ring is located at the circular hole, and after the ball end is fixed, the ring is located at the through hole inside the ball end.

[0009] Preferably, the support block has two symmetrical channels 3 on its side, and both channels 3 are connected to the circular holes.

[0010] Preferably, the support assembly includes an air inlet at the end of the support rod, a channel on the side of the support block, a groove at the bottom of the support block, the channel communicating with the groove and the air inlet, a piston slidably connected to the inner wall of the groove, a receiving groove at the top of the piston, a tension spring fixed to the bottom of the inner wall of the receiving groove, the top of the tension spring fixed to the top of the inner wall of the groove, and an air pump fixed to the inner wall of the housing. The air outlet of the air pump is connected to the air inlet through a pipe.

[0011] Preferably, a polygonal guide rod is fixed to the bottom of the inner wall of the receiving groove, a guide sleeve is movably sleeved on the surface of the guide rod, the top of the guide sleeve is fixed to the top of the inner wall of the groove, and a tension spring is movably sleeved on the surface of the guide sleeve.

[0012] Preferably, the bottom of the piston is fixed with a bottom pad, the bottom of the bottom pad is arc-shaped, and the bottom pad is a rubber pad.

[0013] Preferably, the pressing assembly includes an electric push rod fixed to the side of the housing, a T-shaped rod fixed to the output end of the electric push rod, a round tube fixedly passing through the top of the T-shaped rod, a flexible hose connection end movably sleeved on the surface of the round tube, and the bottom of the round tube communicating with a circular ring.

[0014] Preferably, a striking assembly is provided inside the circular tube. The striking assembly includes a circular rod rotatably connected to the inner wall of the circular tube. Multiple fan blades are fixedly sleeved on the surface of the circular rod. The fan blades are located inside the circular tube. A reinforcing ring is fixed at the welding point on the inner wall of the circular tube near the connection end of the flexible hose. Multiple triangular protrusions are fixed on the inner wall of the reinforcing ring. Multiple elastic strips are fixed on the surface of the circular rod. Ball heads are fixed at the ends of the elastic strips and fit against the inner wall of the reinforcing ring. An electric push rod II is fixed at the top of the T-shaped rod. A circular pad is fixed at the output end of the electric push rod II. During welding, the circular pad fits against the circular rod. After welding is completed, the circular pad detaches from the circular rod.

[0015] Compared with the prior art, this utility model has at least the following beneficial effects:

[0016] In the above solution, by setting up a heat dissipation mechanism, before welding, the ball end is fitted onto the support block, and then the support assembly is activated. Through the cooperation of the support assembly and the support block, the ball end is fixed. During welding, the second air pump is then activated. The compressed gas generated by the second air pump enters the round hole through the second air inlet and the second channel, and then passes through the through hole of the ball end and is discharged from the top of the hose connection end. During this process, the heat outside the welding point on the ball end is transferred to the support block, and then the gas carries away the heat from the support block, thereby cooling the ball end. This prevents the sealing surface of the ball end from warping slightly due to high temperature, ensuring the sealing surface of the ball end and the fit and seal between the sealing surface and the injector. When the gas passes through the inside of the hose connection end, it can also reduce the temperature of the hose connection end, preventing the hose connection end from overheating, thereby reducing the impact on the quality of the hose connection end and ensuring the durability of the hose connection end.

[0017] By setting a ring, when the ball end is fitted onto the surface of the support block, the ball end can be moved downwards and the ring can engage with the through hole inside the ball end, thereby positioning the ball end and improving the accuracy of the ball end after placement. At the same time, it can improve the sealing between the round hole and the through hole of the ball end, thus improving the heat dissipation effect.

[0018] By setting up channel three, as the gas is discharged upward from the round hole, some of the gas will be discharged from channel three due to pressure. The gas discharged from channel three will blow onto the inner wall of the ball end and away from the weld, thereby reducing the temperature of the unwelded part of the ball end. This further prevents the sealing surface of the ball end from warping slightly due to high temperature, and further ensures the sealing performance between the sealing surface of the ball end and the injector.

[0019] By setting up a support assembly, after the ball end is fitted onto the support block, the first air pump is started. The high-pressure gas generated by the first air pump enters the groove through the first air inlet and the first channel. After the pressure in the groove increases, it drives the piston away from the support block until the bottom pad of the piston is attached to the inner wall of the ball end, thus fixing the ball end. Supporting the ball end in this way can improve the convenience of support, eliminate the need to set up a drive structure inside the support block, and improve the overall reliability of the device.

[0020] By setting up the pressing component, after the hose connection end is attached to the ball end, the electric push rod one is activated. The electric push rod one drives the round tube to be inserted into the hose connection end through the T-shaped rod until the T-shaped rod is attached to the top of the hose connection end, thereby positioning the hose connection end and preventing a large gap between the hose connection end and the ball end, thus improving the welding quality after welding. The insertion of the round tube into the hose connection end can position the hose connection end and improve the connection accuracy between the hose connection end and the ball end.

[0021] By setting up a striking component, after welding is completed, the electric push rod drives the circular pad away from the circular rod. At this time, the gas passing through the inside of the circular tube will drive the fan blade to rotate. The rotation of the fan blade will drive the circular rod to rotate. After the circular rod rotates, it will drive the elastic strip to rotate. During the process of the elastic strip sliding on the inner wall of the reinforcing ring, when the ball head encounters the triangular protrusion, the elastic strip will be compressed until the ball head disengages from the triangular protrusion. At the moment of disengagement, the elastic strip will drive the ball head to quickly reset and strike the reinforcing ring, thereby generating vibration. The vibration can be transmitted to the welding point. Through vibration, the stress generated by welding can be released, thereby further improving the welding quality. The reinforcing ring improves the structural strength of the circular tube and prevents the ball head from directly striking the inner wall of the circular tube, causing local deformation of the circular tube, thus protecting the circular tube. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the outer shell structure of this utility model;

[0024] Figure 3 This is a schematic diagram of one structure of the air pump of this utility model;

[0025] Figure 4 This is a schematic diagram of the support rod structure of this utility model;

[0026] Figure 5 This is a cross-sectional view of the support block of this utility model;

[0027] Figure 6 For the present utility model Figure 5 Enlarged view of the structure at point A in the middle;

[0028] Figure 7 For the present utility model Figure 5 Enlarged view of the structure at point B in the middle;

[0029] Figure 8 This is a schematic diagram of one air inlet of the present invention;

[0030] Figure 9 This is a schematic diagram of one section of the channel structure of this utility model;

[0031] Figure 10 This is a schematic diagram of the two channels of this utility model.

[0032] In the diagram: 1. Base; 2. Welding robot; 3. Heat dissipation mechanism; 4. Housing; 5. Electric push rod one; 6. T-shaped rod; 7. Round tube; 8. Support rod; 9. Support block; 10. Groove; 11. Piston; 12. Tension spring; 13. Guide rod; 14. Guide sleeve; 15. Air inlet one; 16. Air pump one; 17. Channel one; 18. Bottom pad; 19. Air inlet two; 20. Air pump two; 21. Channel two; 22. Round hole; 23. Circular ring; 24. Channel three; 25. Round rod; 26. Reinforcing ring; 27. Triangular protrusion; 28. Elastic strip; 29. ​​Ball head; 30. Fan blade; 31. Electric push rod two; 32. Round pad.

[0033] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to the specific structure, device and environment. According to specific needs, those skilled in the art can adjust or modify these devices and environments, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation

[0034] The present invention provides a welding device for a return oil pipe joint, which is described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some known technologies, those skilled in the art can also use other alternative methods to implement the invention. Furthermore, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0035] like Figures 1-10 As shown in the figure, an embodiment of the present invention provides a welding device for a return oil pipe joint, including a base 1, on which a welding robot 2 is mounted. The welding robot 2 is used for welding between the ball end and the hose connection end, and also includes:

[0036] The heat dissipation mechanism 3 includes a housing 4 fixed to the base 1. A support rod 8 is fixedly inserted through the side of the housing 4. A support block 9 is fixed to the end of the support rod 8 to support the ball end. A round hole 22 is opened on the top of the support block 9. A channel 21 is opened on the side of the support block 9 and is connected to the round hole 22. An air inlet 19 is opened at the end of the support rod 8 and is connected to the channel 21. An air pump 20 is fixed inside the housing 4. The air outlet of the air pump 20 is connected to the air inlet 19 through a pipe. A support is provided at the bottom of the support block 9. The components include a support component for fixing the ball end with the support block 9, a pressing component on the side of the housing 4 for positioning the hose connection end, and a base 1 for providing a load-bearing foundation for the entire equipment, fixing components such as the welding robot 2 and the heat dissipation mechanism 3 to ensure stable operation. The welding robot 2 is used to automatically complete the welding operation between the ball end and the hose connection end, improving welding efficiency and accuracy. The heat dissipation mechanism 3 is used to cool the ball end and hose connection end during the welding process to prevent high temperature from affecting the quality of the workpiece. The housing 4 provides installation and protection space for the air pump 20 and the support rod 8. The internal components of the barrier operate stably; the support rod 8 connects the housing 4 and the support block 9, providing support for the support block 9 and allowing gas flow; the support block 9 is used to support and initially position the ball end, providing a reference for subsequent fixing and welding; the round hole 22, channel two 21, and air inlet two 19 cooperate to form a gas flow channel, allowing compressed gas generated by air pump two 20 to flow; air pump two 20 provides compressed gas to provide power for heat dissipation; the support assembly cooperates with the support block 9 to achieve a firm fixation of the ball end, preventing displacement during welding; the pressing assembly is used to position and press the hose connection end to ensure its... It fits tightly against the ball end. During use, the ball end is placed on the support block 9, and the ball end is fixed by the support component in conjunction with the support block 9. The hose connection end is positioned by the pressing component, and the welding robot 2 starts welding. At the same time, the air pump 20 starts, and the compressed gas enters the round hole 22 through the air inlet 19 and the channel 21, and then flows through the inside of the ball end and the hose connection end and is discharged. In the process, the heat generated by welding is carried away, preventing the ball end sealing surface from warping due to high temperature and the hose connection end from being damaged by heat, ensuring the sealing performance and workpiece durability. At the same time, the fixed structure prevents welding displacement and improves the welding quality.

[0037] like Figure 8As shown in this embodiment, a ring 23 is fixed to the top of the support block 9. The ring 23 is located at the circular hole 22. After the ball end is fixed, the ring 23 is located at the internal through hole of the ball end. The ring 23 is fixed to the top of the support block 9 and corresponds to the circular hole 22. It is used to position the ball end and enhance the sealing of gas flow. In use, the ball end is sleeved on the support block 9 and moved downward so that the ring 23 is inserted into the internal through hole of the ball end, realizing the precise positioning of the ball end. This ensures that the relative position of the ball end with the support block 9 and the circular hole 22 is accurate, avoiding misalignment with the hose connection end during subsequent welding. At the same time, the ring 23 fits against the inner wall of the internal through hole of the ball end, enhancing the sealing performance of the circular hole 22 and the through hole of the ball end, reducing gas leakage, ensuring that the compressed gas can flow fully through the inside of the workpiece, improving the heat dissipation effect, and indirectly ensuring the welding quality and the sealing performance of the workpiece.

[0038] like Figure 8 As shown in this embodiment, two channels 24 are symmetrically opened on the side of the support block 9. Both channels 24 are connected to the circular hole 22. The channels 24 are used to divert compressed gas and expand the heat dissipation range. After the compressed gas generated by the air pump 20 enters the circular hole 22, part of the gas flows through the inside of the ball end and the hose connection end, and the other part of the gas is diverted and discharged through the two channels 24, blowing towards the inner wall of the ball end away from the welding point, reducing the overall temperature of the ball end, avoiding the warping of the sealing surface caused by the high temperature of other parts due to the cooling around the welding point, further ensuring the flatness of the sealing surface of the ball end, ensuring its fit and sealing with the injector, and at the same time helping to remove the heat on the support block 9, improving the overall heat dissipation effect of the heat dissipation mechanism 3.

[0039] like Figure 3 and Figure 9As shown, in this embodiment, the support assembly includes an air inlet 15 at the end of the support rod 8, a channel 17 on the side of the support block 9, and a groove 10 at the bottom of the support block 9. The channel 17 is connected to the groove 10 and the air inlet. A piston 11 is slidably connected to the inner wall of the groove 10. A receiving groove is formed on the top of the piston 11. A tension spring 12 is fixed to the bottom of the inner wall of the receiving groove, and the top of the tension spring 12 is fixed to the top of the inner wall of the groove 10. An air pump 16 is fixed to the inner wall of the housing 4. The air outlet of the air pump 16 is connected to the air inlet 15 through a pipe. The air inlet 15 and the channel 17 cooperate to form a high-pressure gas flow channel, allowing the high-pressure gas generated by the air pump 16 to enter the groove 10. The groove 10 provides installation and movement space for the piston 11 and the tension spring 12. The piston 11 moves under the push of the high-pressure gas and cooperates with the support block 9 to clamp the ball end. The receiving groove is used to install the tension spring 12 and prevent the tension spring 12 from moving. Position; tension spring 12 provides elastic restoring force to drive piston 11 to reset after welding; air pump 16 provides high-pressure gas to drive piston 11 to move. After the ball end is positioned, air pump 16 starts, and high-pressure gas enters groove 10 through air inlet 15 and channel 17. The pressure in groove 10 increases, pushing piston 11 to move downward. Tension spring 12 is stretched until piston 11 fits against the inner wall of ball end, cooperating with support block 9 to achieve firm fixation of ball end. After welding, air pump 16 is turned off. Since a control valve (not shown in the figure) is set on the pipeline, the control valve is opened at this time. Gas in groove 10 will be discharged from the control valve, the pressure in groove 10 will decrease, and then tension spring 12 will elastically reset, driving piston 11 to move upward and disengage from ball end, making it easier to remove workpiece. This structure does not require complex drive components inside support block 9, improving the overall reliability of the device, and at the same time achieving rapid clamping and loosening of ball end, improving work efficiency.

[0040] like Figure 9 As shown, in this embodiment, a polygonal guide rod 13 is fixed to the bottom of the inner wall of the receiving groove. A guide sleeve 14 is movably sleeved on the surface of the guide rod 13. The top of the guide sleeve 14 is fixed to the top of the inner wall of the groove 10. A tension spring 12 is movably sleeved on the surface of the guide sleeve 14. The guide rod 13 and the guide sleeve 14 cooperate to provide guidance and limit for the lifting and lowering movement of the piston 11. The polygonal structure can prevent the piston 11 from rotating when it moves, ensuring that the piston 11 always moves in the vertical direction.

[0041] like Figure 9 As shown in this embodiment, a bottom pad 18 is fixed to the bottom of the piston 11. The bottom of the bottom pad 18 is arc-shaped and is made of rubber. The bottom pad 18 is made of rubber and is arc-shaped to enhance the fit between the piston 11 and the ball end, while protecting the inner wall of the ball end.

[0042] like Figure 2 and Figure 5As shown, in this embodiment, the pressing assembly includes an electric push rod 5 fixed to the side of the housing 4. A T-shaped rod 6 is fixed to the output end of the electric push rod 5. A round tube 7 is fixedly inserted through the top of the T-shaped rod 6. The hose connection end is movably sleeved on the surface of the round tube 7. The bottom of the round tube 7 is connected to the ring 23. The electric push rod 5 provides driving force to the pressing assembly, and drives the T-shaped rod 6 to rise and fall through telescopic movement. The T-shaped rod 6 is used to connect the electric push rod 5 and the round tube 7, and can also fit against the top of the hose connection end to achieve the pressing and positioning of the hose connection end. The round tube 7 is used to insert into the inside of the hose connection end to connect the hose. The end is radially positioned to ensure precise alignment with the ball end. Simultaneously, the round tube 7 is connected to the circular ring 23 to ensure smooth flow of compressed gas. During use, the hose connection end is placed against the ball end to be welded. The electric push rod 5 extends, pushing the T-shaped rod 6 downwards, causing the round tube 7 to insert into the hose connection end until the T-shaped rod 6 is against the top of the hose connection end. This achieves compression and positioning of the hose connection end, preventing gaps between the hose connection end and the ball end, ensuring precise alignment, and improving welding quality. The supporting role of the round tube 7 also prevents deformation of the hose connection end, ensuring the structural integrity of the workpiece.

[0043] like Figures 4-7As shown, in this embodiment, a striking assembly is provided inside the circular tube 7. The striking assembly includes a circular rod 25 rotatably connected to the inner wall of the circular tube 7. Multiple support frames are movably sleeved on the surface of the circular rod 25, and the ends of the support frames are fixed to the inner wall of the circular tube 7. Multiple fan blades 30 are fixedly sleeved on the surface of the circular rod 25, and the fan blades 30 are located inside the circular tube 7. A reinforcing ring 26 is fixed to the welded joint of the inner wall of the circular tube 7 near the hose connection end. Multiple triangular protrusions 27 are fixed to the inner wall of the reinforcing ring 26. Multiple elastic strips 28 are fixed to the surface of the circular rod 25, and the ends of the elastic strips 28 are fixed with... Ball head 29 is attached to the inner wall of reinforcing ring 26. Electric push rod 21 is fixed to the top of T-shaped rod 6. A round pad 32 is fixed to the output end of electric push rod 21. During welding, the round pad 32 adheres to the round rod 25. After welding, the round pad 32 detaches from the round rod 25. The round rod 25 provides a mounting carrier for fan blade 30 and elastic strip 28, and can rotate around the inner wall of the round tube 7. The fan blade 30 is driven to rotate by compressed gas, causing the round rod 25 to rotate synchronously. Reinforcing ring 26 is used to enhance the structural strength of the inner wall of the round tube 7, and also provides a mounting base for triangular protrusion 27. To prevent the ball head 29 from directly striking the round tube 7 and causing deformation, the triangular protrusion 27 cooperates with the ball head 29 and the elastic strip 28 to trigger the ball head 29 to strike. The elastic strip 28 provides elastic deformation and restoring force, causing the ball head 29 to strike the reinforcing ring 26. The ball head 29 is used to cooperate with the triangular protrusion 27 and strike the reinforcing ring 26 to generate vibration. The electric push rod 31 is used to control the raising and lowering of the round pad 32 to realize the start and stop of the striking assembly. The round pad 32 is used to fit the round rod 25 and fix the round rod 25 during welding to prevent its rotation from interfering with the welding. During the welding process, the electric push rod 31... Rod 2 31 pushes the round pad 32 to fit against the round rod 25, fixing the round rod 25 to prevent rotation; after welding, electric push rod 2 31 drives the round pad 32 to detach from the round rod 25, and the compressed gas continuously delivered by air pump 20 drives the fan blade 30 to rotate, driving the round rod 25, elastic strip 28, and ball head 29 to rotate; the ball head 29 slides along the inner wall of the reinforcing ring 26, and when it encounters the triangular protrusion 27, it squeezes the elastic strip 28 to deform. When it detaches, the elastic strip 28 resets and drives the ball head 29 to strike the reinforcing ring 26. The resulting vibration is transmitted to the weld, releasing the welding stress and improving the weld strength.

[0044] Working principle: The ball end is sleeved on the support block 9. The ball end is moved downward so that the ring 23 is inserted into the through hole inside the ball end, thus achieving the initial positioning of the ball end. Then, the air pump 16 is started, which generates high-pressure gas. The high-pressure gas enters the air inlet 15 through the pipe. Then, the gas passes through the air inlet 15 and the channel 17 in sequence and enters the groove 10. The pressure in the groove 10 increases, pushing the piston 11 to move downward. The guide rod 13 and the guide sleeve 14 cooperate to ensure that the piston 11 moves smoothly. The tension spring 12 is stretched until the bottom pad 18 of the piston 11 is attached to the inner wall of the ball end, and cooperates with the support block 9 to complete the firm fixation of the ball end.

[0045] Place the hose connection end against the ball end to be welded, start the electric push rod 5, the electric push rod 5 pushes the T-shaped rod 6 downward, the T-shaped rod 6 drives the round tube 7 to be inserted into the hose connection end until the T-shaped rod 6 is against the top of the hose connection end, realizing the positioning and pressing of the hose connection end, ensuring that the hose connection end and the ball end are tightly fitted.

[0046] During the welding process, the second air pump 20 is started. The compressed gas generated by the second air pump 20 enters the round hole 22 through the second air inlet 19 and the second channel 21. Part of the gas enters the interior of the ball end and the connection end of the hose through the ring 23 and is discharged from the top of the connection end of the hose. In the process, the heat of the support block 9 and the area around the welding point of the ball end and the connection end of the hose is carried away. The other part of the gas is discharged through the third channel 24 and blown towards the inner wall of the ball end away from the welding point to reduce the overall temperature of the ball end. At the same time, the welding robot 2 is started to automatically weld the connection between the ball end and the connection end of the hose.

[0047] After welding is completed, welding robot 2 is turned off, air pump 20 is kept running, electric push rod 31 is started, and round pad 32 is moved upward to disengage from round rod 25. At this time, the gas flowing in round tube 7 drives fan blade 30 to rotate. Fan blade 30 drives round rod 25 to rotate synchronously. Round rod 25 drives elastic strip 28 and ball head 29 to rotate. Ball head 29 slides along the inner wall of reinforcing ring 26. When it encounters triangular protrusion 27, it squeezes elastic strip 28 to deform it. At the moment of disengagement from triangular protrusion 27, elastic strip 28 resets and drives ball head 29 to strike reinforcing ring 26. The resulting vibration is transmitted to the welding point, which can release welding stress.

[0048] After stress relief is completed, turn off air pump 16 and air pump 20. The tension spring 12 elastically resets, causing the piston 11 to move upward and disengage from the inner wall of the ball end, returning to its initial position. Start electric push rod 21, causing the round pad 32 to move downward and fit against the round rod 25, stopping the vibration of the striking assembly. Start electric push rod 5, causing the T-shaped rod 6 and the round tube 7 to move upward and disengage from the hose connection end. Remove the welded return oil pipe joint. Then, all components are reset, ready for the next round of welding operations.

[0049] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An oil return pipe joint welding apparatus comprising a base (1) on which a welding robot (2) is installed for welding between a ball end and a hose connection end, characterized in that, Also includes: The heat dissipation mechanism (3) includes a housing (4) fixed on the base (1). A support rod (8) is fixed through the side of the housing (4). A support block (9) is fixed at the end of the support rod (8). The support block (9) is used to support the ball end. A round hole (22) is opened at the top of the support block (9). A channel two (21) is opened on the side of the support block (9). The channel two (21) is connected to the round hole (22). An air inlet hole two (19) is opened at the end of the support rod (8) and is connected to the channel two (21). An air pump two (20) is fixed inside the housing (4). The air outlet of the air pump two (20) is connected to the air inlet hole two (19) through a pipe. A support component is provided at the bottom of the support block (9). The support component is used to cooperate with the support block (9) to fix the ball end. A pressing component is provided on the side of the housing (4). The pressing component is used to position the hose connection end.

2. The oil return pipe joint welding apparatus according to claim 1, characterized by, The top of the support block (9) is fixed with a ring (23), which is located at the circular hole (22). After the ball end is fixed, the ring (23) is located at the through hole inside the ball end.

3. The oil return pipe joint welding apparatus according to claim 1, characterized by, The support block (9) has two symmetrical channels (24) on its side, and both channels (24) are connected to the round hole (22).

4. The oil return tube joint welding apparatus according to claim 1, characterized by, The support assembly includes an air inlet (15) at the end of the support rod (8), a channel (17) on the side of the support block (9), a groove (10) at the bottom of the support block (9), the channel (17) and the groove (10) being connected, the channel (17) and the air inlet being connected, a piston (11) being slidably connected to the inner wall of the groove (10), a receiving groove being provided at the top of the piston (11), a tension spring (12) being fixed at the bottom of the inner wall of the receiving groove, the top of the tension spring (12) being fixed at the top of the inner wall of the groove (10), and an air pump (16) being fixed to the inner wall of the housing (4), the air outlet of the air pump (16) being connected to the air inlet (15) through a pipe.

5. The oil return pipe joint welding apparatus according to claim 4, characterized by A polygonal guide rod (13) is fixed to the bottom of the inner wall of the receiving groove. A guide sleeve (14) is movably sleeved on the surface of the guide rod (13). The top of the guide sleeve (14) is fixed to the top of the inner wall of the groove (10). A tension spring (12) is movably sleeved on the surface of the guide sleeve (14).

6. The oil return pipe joint welding apparatus according to claim 5, characterized by The bottom of the piston (11) is fixed with a bottom pad (18), the bottom of the bottom pad (18) is arc-shaped, and the bottom pad (18) is a rubber pad.

7. The oil return tube joint welding apparatus according to claim 2, characterized by The pressing assembly includes an electric push rod (5) fixed on the side of the housing (4). A T-shaped rod (6) is fixed at the output end of the electric push rod (5). A round tube (7) is fixed through the top of the T-shaped rod (6). The hose connection end is movably sleeved on the surface of the round tube (7). The bottom of the round tube (7) is connected to the ring (23).

8. The oil return pipe joint welding apparatus according to claim 7, characterized by The circular tube (7) is equipped with a striking assembly, which includes a circular rod (25) rotatably connected to the inner wall of the circular tube (7). Multiple fan blades (30) are fixedly sleeved on the surface of the circular rod (25). The fan blades (30) are located inside the circular tube (7). A reinforcing ring (26) is fixed at the welding point of the inner wall of the circular tube (7) and near the connection end of the flexible hose. Multiple triangular protrusions (27) are fixed on the inner wall of the reinforcing ring (26). Multiple elastic strips (28) are fixed on the surface of the circular rod (25). A ball head (29) is fixed at the end of the elastic strip (28). The ball head (29) is attached to the inner wall of the reinforcing ring (26). An electric push rod II (31) is fixed at the top of the T-shaped rod (6). A round pad (32) is fixed at the output end of the electric push rod II (31). During welding, the round pad (32) is attached to the circular rod (25). After welding, the round pad (32) is removed from the circular rod (25).

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