A welding treatment device for manufacturing mechanical parts and its operating method

Abstract

This invention belongs to the field of mechanical parts manufacturing, specifically a welding treatment device and its operating method for mechanical parts manufacturing. It includes a base, a welding head on the top of the base, a first motor fixedly connected to one side of the base, and an output end of the first motor extending into the interior of the base and fixedly connected to a bidirectional lead screw. This invention provides a welding treatment device and its operating method for mechanical parts manufacturing. By adjusting the position of the collar, the direction of gas flow can be adjusted, allowing gas to enter the interior of the pipe individually or to be ejected from the bottom of the inlet pipe, drying the leak detection agent at the weld joint. The gas is more concentrated by the guide of the inclined inner wall of the gas-gathering ring, and the hot gas flows downwards along the inclined surface of the guide plates by the guidance of two guide plates. The concave inner surfaces of the two baffles prevent rapid diffusion of the hot gas, prolonging the residence time of the hot gas around the weld, resulting in better drying of the leak detection agent.

Description

Technical Field

[0001] This invention belongs to the field of mechanical parts manufacturing, specifically a welding treatment device and its operation method for manufacturing mechanical parts. Background Technology

[0002] Welding is a manufacturing process and technology that joins metals or other thermoplastic materials such as plastics by heating, high temperature, or high pressure. Mechanical parts, also known as mechanical components, are the basic elements that make up machinery. They are inseparable individual parts that make up machines. Mechanical parts are diverse, and most require welding processing. For example, stainless steel pipes are widely used in piping systems and are important components of pipelines.

[0003] After welding pipes, it is generally necessary to conduct an airtightness test on the joint between adjacent pipe sections. In existing technology, a leak detection agent is usually applied to the weld surface, the pipe is then sealed, and gas is injected into the pipe to observe whether air bubbles are generated. However, after the airtightness test, it is not convenient to remove the applied leak detection agent. When the weld needs to be repaired, the leak detection agent evaporates due to the high temperature of welding, making it easier for pores to form at the repaired weld, affecting the airtightness of the pipe. Moreover, if there are gaps at the weld joint, the leak detection agent will seep into the gaps, making it even more difficult to deal with. In addition, the pores originally covered by the weld surface can easily connect with the outside after grinding, forming a channel for gas leakage. If not detected in time, air leakage may occur in the pipe after grinding the weld seam.

[0004] Therefore, the present invention provides a welding treatment apparatus for manufacturing mechanical parts and its operating method. Summary of the Invention

[0005] To address the shortcomings of existing technologies and solve the problems of inconvenience in treating the applied leak detection agent after airtightness testing of pipes, the evaporation of the leak detection agent during high-temperature welding when weld repair is required, and the resulting porosity affecting the airtightness of the pipe, this invention proposes a welding treatment device and its operating method for manufacturing mechanical parts.

[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: A welding treatment device for manufacturing mechanical parts according to the present invention includes a base, a welding head is provided on the top of the base, a first motor is fixedly connected to one side of the base, the output end of the first motor extends into the interior of the base and is fixedly connected to a bidirectional lead screw, two sliders are connected to the outer wall of the bidirectional lead screw through a lead screw nut pair, the two sliders are symmetrically installed and slidably connected to the base, a side plate is fixedly connected to the top of each of the two sliders, a clamping assembly is provided on the top of the base, a second motor is fixedly connected to one side of the side plate, the output end of the second motor extends into the interior of the side plate and is fixedly connected to a clamping block, the clamping block is rotatably connected to the side plate, a rubber pad is fixedly connected to one side of the clamping block through the side plate, a through groove is opened in the interior of the side plate, and an air supply assembly is provided above the base.

[0007] Preferably, the air supply assembly includes an air intake pipe located above the base and between two side plates. Two second pipes are symmetrically fixedly connected to the outer wall of the air intake pipe. A first pipe is slidably connected to the outer wall of each of the two second pipes. The first pipes are fixedly connected to the side plates and one end extends into the interior of the through groove. A first air outlet groove is provided on one side of the clamping block. A plurality of first air intake grooves are provided at equal intervals on the outer wall of the clamping block. The first air intake grooves communicate with the first air outlet grooves. The through groove fits against the outer wall of the clamping block. A heating wire is provided on the inner wall of the air intake pipe above the second pipes. An adjustment unit is provided on the outer wall of the air intake pipe.

[0008] Preferably, the adjusting unit includes a collar, which is disposed on the outer wall of the air intake pipe and slidably connected to the air intake pipe. A second hydraulic cylinder is fixedly connected to the bottom of the second pipe, and the output end of the second hydraulic cylinder is fixedly connected to the collar. A plurality of second air intake slots are equidistantly opened on the outer wall of the air intake pipe, and a second air outlet slot is opened at the bottom of the air intake pipe. A plurality of third air intake slots are equidistantly opened on the outer wall of the air intake pipe and below the second air intake slots. The third air intake slots communicate with the second air outlet slots. A cavity is opened on the inner wall of the collar, and the cavity is configured as annular.

[0009] Preferably, the inner wall of the collar is symmetrically fixedly connected to two sliding shafts, the outer walls of the two sliding shafts are slidably connected to sliding plates, a grinding block is fixedly connected between the two sliding plates, a spring is sleeved on the outer wall of the sliding shaft, the top of the spring is fixedly connected to the collar, and the bottom of the spring is fixedly connected to the sliding plate.

[0010] Preferably, an air-gathering ring is fixedly connected to the bottom of the collar, the bottom of the air-gathering ring is inclined inward, and a flow-dividing block is fixedly connected to the top of the grinding block, the top of the flow-dividing block is set as a symmetrical inclined surface.

[0011] Preferably, the top of the base is symmetrically fixedly connected to two second brackets, the top of each of the two second brackets is fixedly connected to a mounting plate, a guide plate is fixedly connected to one side of each of the two mounting plates, both guide plates are installed at an angle, and a baffle is fixedly connected to one side of each of the two guide plates, both baffles are set to be arc-shaped.

[0012] Preferably, an air guide ring is fixedly connected to the inner wall of the air intake pipe and below the second pipe, and the top of the air guide ring is configured as an annular inclined surface.

[0013] Preferably, the clamping assembly includes two first brackets, which are respectively fixedly installed on the outer walls of two side plates. A fixing ring is fixedly connected to the top of each of the two first brackets. A plurality of first hydraulic cylinders are fixedly connected at equal intervals to the inner wall of the fixing ring. A clamping plate is fixedly connected to the output end of the first hydraulic cylinder. A rotating shaft is fixedly connected to the inner wall of the clamping plate. A pulley is rotatably connected to the outer wall of the rotating shaft.

[0014] Preferably, the outer wall of the pulley is provided with a plurality of rubber rings at equal intervals.

[0015] A method for operating a welding treatment apparatus for manufacturing mechanical parts, applicable to the aforementioned welding treatment apparatus for manufacturing mechanical parts, comprising the following steps:

[0016] S1: Insert the pipe into the fixing ring, start several first hydraulic cylinders to bring several clamping plates close together to clamp the pipe, start the first motor to drive two clamping blocks close together to clamp the two ends of the two pipe sections.

[0017] S2: Start the second hydraulic cylinder, control the grinding block to move downwards, cooperate with the rotating pipe to grind the excess weld height of the pipe, and then control the two fixing rings to move away from each other to check whether the two pipe sections have poor welds.

[0018] S3: Test the airtightness of the two pipe sections after welding. If it is determined that a repair weld is needed, spray hot air through the air inlet pipe to dry the leak detection agent on the surface of the pipe weld.

[0019] The beneficial effects of this invention are as follows:

[0020] 1. The welding treatment device and its operating method for manufacturing mechanical parts according to the present invention can adjust the gas flow direction by adjusting the position of the collar, so that the gas can not only enter the interior of the pipe separately, but also spray the gas from the bottom of the air inlet pipe to dry the leak detection agent at the weld of the pipe.

[0021] 2. The welding treatment device and its operating method for manufacturing mechanical parts according to the present invention, through the guidance of the inclined surface of the inner wall of the gas-gathering ring, makes the sprayed gas more concentrated; through the guidance of the two guide plates, the hot gas flows downward along the inclined surface of the guide plates; through the wrapping of the concave surface of the two baffles, the hot gas is prevented from spreading rapidly, and the residence time of the hot gas around the weld is extended, resulting in a better drying effect on the leak detection agent.

[0022] 3. The welding treatment device and its operation method for manufacturing mechanical parts according to the present invention can adjust the position of the collar so that the grinding block can treat the weld excess at the weld joint of the pipe. After treating the weld excess, the two sections of pipe are filled with air in time to test the air tightness, thereby preventing the pipe from leaking air in subsequent processing due to the treatment of weld excess.

[0023] 4. The welding treatment device and its operating method for manufacturing mechanical parts according to the present invention intercepts part of the hot air by setting a gas guide ring, allowing part of the hot air to flow along the inclined surface at the top of the gas guide ring and enter the second pipe, thereby allowing the hot air to enter the interior of the pipe and heat the interior of the pipe. Moreover, due to the enclosure of the pipe itself, the hot air is not easily diffused after entering. By heating the interior of the pipe, it is easy to dry the leak detection agent inside the weld and prevent the leak detection agent from seeping into the interior of the weld and making it difficult to clean.

[0024] 5. The welding treatment device and its operating method for manufacturing mechanical parts according to the present invention, by setting several rubber rings, facilitates the increase of lateral friction between the pipe and the pulley. After welding two sections of pipe, the pipe is pulled by several rubber rings to detect whether there is a false weld between the two sections of pipe. When the two sections of pipe are pulled apart, a repair welding operation can be performed directly. When the two sections of pipe are not pulled apart, an airtightness test is required. Attached Figure Description

[0025] The invention will now be further described with reference to the accompanying drawings.

[0026] Figure 1 This is a perspective view of the present invention;

[0027] Figure 2 This is a cross-sectional view of the present invention;

[0028] Figure 3 This is a side sectional view of the air intake pipe of the present invention;

[0029] Figure 4 This is a perspective view of the clamping block and the first air inlet groove of the present invention in use;

[0030] Figure 5 This is a perspective view of the fixing ring and clamp plate of the present invention in use;

[0031] Figure 6This is a perspective view of the guide plate and baffle used in conjunction with the present invention;

[0032] Figure 7 This is the present invention. Figure 2 Enlarged view of point A in the middle;

[0033] Figure 8 This is the present invention. Figure 2 Enlarged view of point B in the middle;

[0034] Figure 9 This is the present invention. Figure 2 Enlarged view of point C in the middle;

[0035] Figure 10 This is the present invention. Figure 2 Enlarged view at point D;

[0036] In the diagram: 1. Base; 2. First motor; 3. Double-acting lead screw; 4. Slider; 5. Side plate; 6. Second motor; 7. Clamping block; 8. Rubber pad; 9. Welding head; 10. First bracket; 11. Fixing ring; 12. First hydraulic cylinder; 13. Clamping plate; 14. Rotating shaft; 15. Pulley; 16. Rubber ring; 17. First pipe; 18. Second pipe; 19. Inlet pipe; 20. Through groove; 21. First inlet... 21. Air groove; 22. First air outlet groove; 23. Second hydraulic cylinder; 24. Collar; 25. Cavity; 26. Second air inlet groove; 27. Third air inlet groove; 28. Second air outlet groove; 29. ​​Heating wire; 30. Air guide ring; 31. Sliding shaft; 32. Spring; 33. Slide plate; 34. Grinding block; 35. Diverter block; 36. Air gathering ring; 37. Second bracket; 38. Mounting plate; 39. Guide plate; 40. Baffle. Detailed Implementation

[0037] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0038] like Figures 1 to 10As shown, the present invention provides a technical solution: a welding processing device for manufacturing mechanical parts, including a base 1, a welding head 9 on the top of the base 1, a first motor 2 fixedly connected to one side of the base 1, the output end of the first motor 2 extending into the interior of the base 1 and fixedly connected to a bidirectional lead screw 3, two sliders 4 connected to the outer wall of the bidirectional lead screw 3 through a lead screw nut pair, the two sliders 4 being symmetrically installed and slidably connected to the base 1, a side plate 5 fixedly connected to the top of each of the two sliders 4, a clamping assembly on the top of the base 1, a second motor 6 fixedly connected to one side of the side plate 5, the output end of the second motor 6 extending into the interior of the side plate 5 and fixedly connected to a clamping block 7, the clamping block 7 being rotatably connected to the side plate 5, a rubber pad 8 fixedly connected to one side of the clamping block 7 penetrating the side plate 5, a through groove 20 opened inside the side plate 5, and an air supply assembly above the base 1.

[0039] The above technical solution involves clamping and fixing two pipe sections using a clamping assembly. The first motor 2 is started, driving the bidirectional lead screw 3 to rotate, causing the two sliders 4 to move closer together, which in turn causes the two side plates 5 to move closer together. Two clamping blocks 7 clamp the ends of the two pipe sections. Rubber pads 8 are used to increase the friction between the clamping blocks 7 and the pipe sections. A welding head 9 is used to perform preliminary welding at the connection point of the two pipe sections. Then, the second motor 6 is started, driving the clamping blocks 7 and rubber pads 8 to rotate, causing the two pipe sections to rotate synchronously. The welding head 9 is then used to perform circumferential welding at the connection point of the two pipe sections. After welding, a leak-detecting agent is applied to the surface of the welded joint. The ends of the two pipe sections are sealed using a gas supply assembly, and gas is introduced into the pipes. The airtightness of the welded pipes is judged by observing whether bubbles emerge from the weld. If there are gaps at the welded joint, the gas supply assembly is adjusted to dry the leak-detecting agent inside the pipe, preventing pores from forming at the weld due to the evaporation of the leak-detecting agent during repair welding.

[0040] Specifically, the gas supply assembly includes an air inlet pipe 19, which is located above the base 1 and between two side plates 5. Two second pipes 18 are symmetrically fixedly connected to the outer wall of the air inlet pipe 19. A first pipe 17 is slidably connected to the outer wall of each of the two second pipes 18. The first pipe 17 is fixedly connected to the side plate 5 and one end of it extends into the interior of the through groove 20. A first air outlet groove 22 is provided on one side of the clamping block 7. Several first air inlet grooves 21 are provided at equal intervals on the outer wall of the clamping block 7. The first air inlet grooves 21 communicate with the first air outlet grooves 22. The through groove 20 fits against the outer wall of the clamping block 7. An electric heating wire 29 is provided on the inner wall of the air inlet pipe 19 and above the second pipes 18. An adjustment unit is provided on the outer wall of the air inlet pipe 19.

[0041] Through the above technical solution, the outer wall of the air intake pipe 19 is sealed by the adjustment unit, and gas is input through the air intake pipe 19. After the gas enters the air intake pipe 19, it flows along the second pipe 18 and the first pipe 17, then enters the through groove 20, and enters the clamping block 7 along the through groove 20 and the first air intake groove 21, and then is discharged from the first air outlet groove 22 and enters the interior of the two pipe sections.

[0042] Specifically, the adjustment unit includes a collar 24, which is disposed on the outer wall of the air intake pipe 19 and slidably connected to the air intake pipe 19. A second hydraulic cylinder 23 is fixedly connected to the bottom of the second pipe 18, and the output end of the second hydraulic cylinder 23 is fixedly connected to the collar 24. A plurality of second air intake slots 26 are equidistantly opened on the outer wall of the air intake pipe 19. A second air outlet slot 28 is opened at the bottom of the air intake pipe 19. A plurality of third air intake slots 27 are equidistantly opened on the outer wall of the air intake pipe 19 below the second air intake slots 26. The third air intake slots 27 communicate with the second air outlet slots 28. A cavity 25 is opened on the inner wall of the collar 24. The cavity 25 is annular.

[0043] Through the above technical solution, the second hydraulic cylinder 23 can control the collar 24 to move up and down. When it is necessary to test the airtightness of the pipe by filling it with air, the second hydraulic cylinder 23 controls the collar 24 to move upward, so that the cavity 25 moves above the second air inlet groove 26. At this time, the inner wall of the collar 24 fits against the outside of the second air inlet groove 26, sealing the second air inlet groove 26. This prevents the gas entering the air inlet pipe 19 from flowing downward and can only enter the second pipe 18. When a gap is detected at the weld of the pipe that needs to be repaired, the second hydraulic cylinder 23 controls the collar 24 to move upward. The pressure cylinder 23 controls the collar 24 to move downward, causing the cavity 25 to move to the outside of the second air inlet groove 26 and the third air inlet groove 27. The heating wire 29 is activated to heat the gas entering the air inlet pipe 19. At this time, the gas entering the air inlet pipe 19 enters the cavity 25 along the second air inlet groove 26, and then enters the second air outlet groove 28 along the third air inlet groove 27. It is then sprayed downward from the second air outlet groove 28, which facilitates the drying of the surface of the pipe weld. At the same time, the second motor 6 is activated to drive the pipe to rotate, so that the hot gas dries different positions of the weld.

[0044] Specifically, two sliding shafts 31 are symmetrically fixedly connected to the inner wall of the collar 24, and sliding plates 33 are slidably connected to the outer walls of the two sliding shafts 31. A grinding block 34 is fixedly connected between the two sliding plates 33. A spring 32 is sleeved on the outer wall of the sliding shaft 31. The top of the spring 32 is fixedly connected to the collar 24, and the bottom of the spring 32 is fixedly connected to the sliding plate 33.

[0045] Through the above technical solution, after welding the two pipe sections, the second hydraulic cylinder 23 controls the collar 24 to move downward, causing the grinding block 34 to move downward. The spring 32 makes the grinding block 34 press against the weld joint of the pipe. The second motor 6 is started to drive the pipe to rotate. This, in conjunction with the grinding block 34, facilitates the treatment of the weld excess at the pipe weld joint. After treating the weld excess, the two pipe sections are promptly filled with air to test the airtightness, thereby preventing the pipe from leaking air during subsequent processing due to the treatment of the weld excess.

[0046] Specifically, a gas-gathering ring 36 is fixedly connected to the bottom of the collar 24, the bottom of the gas-gathering ring 36 is inclined inward, and a flow-dividing block 35 is fixedly connected to the top of the grinding block 34, the top of the flow-dividing block 35 is set as a symmetrical inclined surface.

[0047] With the above technical solution, when the gas is sprayed downward from the second gas outlet 28, it is divided into two streams by the top inclined surface of the diverter block 35 and flows downward. Furthermore, the gas is guided by the inclined surface of the inner wall of the gas gathering ring 36, making the sprayed gas more concentrated. This helps to maintain the temperature of the gas, prevents the rapid diffusion of hot gas, and improves the drying speed of the leak detection agent.

[0048] Specifically, two second brackets 37 are symmetrically fixedly connected to the top of the base 1. The top of each of the two second brackets 37 is fixedly connected to the mounting plate 38. A guide plate 39 is fixedly connected to one side of each of the two mounting plates 38. Both guide plates 39 are installed at an angle. A baffle 40 is fixedly connected to one side of each of the two guide plates 39. Both baffles 40 are set to be arc-shaped.

[0049] With the above technical solution, the hot gas ejected from the collar 24 impacts the arc surface at the top of the pipe and then diffuses to both sides. Guided by the two guide plates 39, the hot gas flows downward along the inclined surface of the guide plates 39. The concave surface of the two baffles 40 prevents the hot gas from spreading rapidly, prolonging the residence time of the hot gas around the weld and improving the drying effect of the leak detection agent.

[0050] Specifically, an air guide ring 30 is fixedly connected to the inner wall of the air intake pipe 19 and below the second pipe 18, and the top of the air guide ring 30 is set as an annular inclined surface.

[0051] With the above technical solution, when drying the leak detection agent at the weld seam of the pipe, as the hot air flows along the air inlet pipe 19, part of the hot air is intercepted by the set air guide ring 30, allowing part of the hot air to flow along the inclined surface at the top of the air guide ring 30 and enter the second pipe 18, thereby allowing the hot air to enter the interior of the pipe. This heats the interior of the pipe, and because the pipe itself encloses the hot air, it is not easy for it to diffuse after entering. By heating the interior of the pipe, it is easy to dry the leak detection agent inside the weld seam and prevent the leak detection agent from seeping into the interior of the weld seam and making it difficult to clean.

[0052] Specifically, the clamping assembly includes two first brackets 10, which are respectively fixedly installed on the outer walls of the two side plates 5. The top of each of the two first brackets 10 is fixedly connected to a fixing ring 11. Several first hydraulic cylinders 12 are fixedly connected at equal intervals to the inner wall of the fixing ring 11. The output end of the first hydraulic cylinder 12 is fixedly connected to a clamping plate 13. The inner wall of the clamping plate 13 is fixedly connected to a rotating shaft 14. The outer wall of the rotating shaft 14 is rotatably connected to a pulley 15.

[0053] With the above technical solution, when welding two sections of pipe, the pipe is inserted into the fixing ring 11, and several first hydraulic cylinders 12 are activated to bring several clamping plates 13 closer to each other. After the clamping plates 13 are close to each other, several pulleys 15 are attached to the surface of the pipe. Through the clamping of several pulleys 15, it is not only convenient to position the pipe, but also convenient to rotate the pipe.

[0054] Specifically, the outer wall of the pulley 15 is provided with several rubber rings 16 at equal intervals.

[0055] Through the above technical solution, the setting of several rubber rings 16 facilitates the increase of lateral friction between the pipe and the pulley 15. After the two pipe sections are welded, the first motor 2 controls the two sliders 4 to move away from each other, so that the two fixing rings 11 move away from each other. The pipe is pulled by several rubber rings 16 to detect whether there is a false weld between the two pipe sections. When the two pipe sections are pulled apart, the repair welding operation can be performed directly. When the two pipe sections are not pulled apart, the airtightness test needs to be performed.

[0056] A method for operating a welding treatment apparatus for manufacturing mechanical parts, applicable to the aforementioned welding treatment apparatus for manufacturing mechanical parts, comprising the following steps:

[0057] S1: Insert the pipe into the fixing ring 11, start several first hydraulic cylinders 12, so that several clamping plates 13 move closer to each other to clamp the pipe, start the first motor 2, drive two clamping blocks 7 to move closer to each other to clamp the two ends of the two pipe sections.

[0058] S2: Start the second hydraulic cylinder 23, control the grinding block 34 to move downward, cooperate with the rotating pipe to grind the weld excess of the pipe, and then control the two fixing rings 11 to move away from each other to check whether the two pipe sections are poorly welded.

[0059] S3: Test the airtightness of the two pipe sections after welding. If it is determined that the weld needs to be repaired, hot air is sprayed through the air inlet pipe 19 to dry the leak detection agent on the surface of the pipe weld.

[0060] In use, when welding two pipe sections, the pipe is inserted into the fixing ring 11. Several first hydraulic cylinders 12 are activated, causing several clamping plates 13 to move closer together. After the clamping plates 13 move closer together, several pulleys 15 come into contact with the surface of the pipe. The clamping of the pipe by the pulleys 15 not only facilitates the positioning of the pipe but also makes it easy to rotate. The first motor 2 is activated, driving the double-ended lead screw 3 to rotate, causing the two sliders 4 to move closer together, which in turn causes the two side plates 5 to move closer together. The two clamping blocks 7 clamp the two ends of the two pipe sections. The rubber pads 8 increase the friction between the clamping blocks 7 and the pipe. The welding head 9 performs preliminary welding at the joint of the two pipe sections. Then, the second motor 6 is activated, driving the clamping blocks 7 and the rubber pads 8 to rotate, causing the two pipe sections to rotate synchronously. The welding head 9 is used to continue welding the connection between the two pipe sections. Several rubber rings 16 are provided to increase the lateral friction between the pipe and the pulley 15. After welding the two pipe sections, the second hydraulic cylinder 23 controls the collar 24 to move downward, causing the grinding block 34 to move downward. The spring 32 keeps the grinding block 34 pressed against the weld joint. The second motor 6 is started to rotate the pipe, which, together with the grinding block 34, facilitates the removal of excess weld height at the pipe joint. After removing the excess weld height, the two pipe sections are promptly inflated to test the airtightness, thus preventing air leakage in subsequent processing due to the removal of excess weld height. The first motor 2 controls the two sliders 4 to move away from each other, causing the two fixed rings 11 to move away from each other. The pipe is pulled apart by several rubber rings 16 to check for any loose welds between the two pipe sections. If the two pipe sections are pulled apart, a repair weld can be performed directly. If the two pipe sections are not pulled apart, an airtightness test is required. A leak detection agent is applied to the surface of the weld joint between the two pipe sections. The second hydraulic cylinder 23 controls the collar 24 to move upward, so that the cavity 25 moves above the second air inlet groove 26. At this time, the inner wall of the collar 24 fits against the outside of the second air inlet groove 26, sealing the second air inlet groove 26. This prevents the gas entering the air inlet pipe 19 from flowing downward. The gas is then input through the air inlet pipe 19, flows along the second pipe 18 and the first pipe 17 after entering the air inlet pipe 19, and then enters the through groove 20 and flows along the through groove 20 and... The first air inlet groove 21 enters the clamping block 7 and then exits from the first air outlet groove 22, entering the interior of the two pipe sections. The airtightness of the pipe after welding is judged by observing whether bubbles emerge at the weld joint. When there are gaps at the pipe weld joint, they need to be repaired by welding. The second hydraulic cylinder 23 controls the collar 24 to move downward, so that the cavity 25 moves to the outside of the second air inlet groove 26 and the third air inlet groove 27. The heating wire 29 is activated to heat the gas entering the air inlet pipe 19. When the hot gas flows along the air inlet pipe 19, part of the hot gas is intercepted by the set air guide ring 30, so that part of the hot gas flows along the inclined surface at the top of the air guide ring 30 and enters the second pipe 18, thereby allowing the hot gas to enter the interior of the pipe, thus heating the interior of the pipe and through the pipe's own wrapping.The hot air does not easily diffuse after entering. By heating the inside of the pipe, it facilitates the drying of the leak detection agent inside the weld, preventing the leak detection agent from seeping into the weld and making it difficult to clean. The remaining hot air passes through the air guide ring 30 and enters the cavity 25 along the second air inlet groove 26, then enters the second air outlet groove 28 along the third air inlet groove 27, and is sprayed downwards from the second air outlet groove 28. This facilitates the drying of the surface of the weld joint of the pipe. At the same time, the second motor 6 is started, driving the pipe to rotate, so that the hot air dries different parts of the weld. After the gas is sprayed downwards from the second air outlet groove 28, it passes through the diverter block 35. The top sloping surface divides the gas into two downward streams. Guided by the sloping inner wall of the gas-concentrating ring 36, the emitted gas becomes more concentrated, thus maintaining its temperature and preventing rapid heat diffusion. This improves the drying speed of the leak-detecting agent. The hot gas emitted from the collar 24 impacts the arc surface at the top of the pipe and diffuses to both sides. Guided by the two guide plates 39, the hot gas flows downwards along the sloping surface of the guide plates 39. The concave inner surfaces of the two baffles 40 prevent rapid heat diffusion, extending the residence time of the hot gas around the weld and improving the drying effect of the leak-detecting agent.

[0061] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0062] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0063] The foregoing has shown and described 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 to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding processing apparatus for manufacturing mechanical parts, characterized in that, The base (1) includes a base (1), a welding head (9) is provided on the top of the base (1), a first motor (2) is fixedly connected to one side of the base (1), the output end of the first motor (2) extends into the interior of the base (1) and is fixedly connected to a bidirectional lead screw (3), the outer wall of the bidirectional lead screw (3) is connected to two sliders (4) through a lead screw nut pair, the two sliders (4) are symmetrically installed and are slidably connected to the base (1), the top of the two sliders (4) is fixedly connected to a side plate (5), a clamping assembly is provided on the top of the base (1), a second motor (6) is fixedly connected to one side of the side plate (5), the output end of the second motor (6) extends into the interior of the side plate (5) and is fixedly connected to a clamping block (7), the clamping block (7) is rotatably connected to the side plate (5), one side of the clamping block (7) penetrates the side plate (5) and is fixedly connected to a rubber pad (8), a through groove (20) is provided inside the side plate (5), and an air supply assembly is provided above the base (1). The gas delivery assembly includes an air inlet pipe (19), which is located above the base (1) and between two side plates (5). Two second pipes (18) are symmetrically fixedly connected to the outer wall of the air inlet pipe (19). A first pipe (17) is slidably connected to the outer wall of each of the two second pipes (18). The first pipe (17) is fixedly connected to the side plate (5) and one end of it extends into the interior of the through groove (20). A first air outlet groove (22) is provided on one side of the clamping block (7). Several first air inlet grooves (21) are provided at equal intervals on the outer wall of the clamping block (7). The first air inlet grooves (21) are connected to the first air outlet grooves (22). The through groove (20) fits against the outer wall of the clamping block (7). A heating wire (29) is provided on the inner wall of the air inlet pipe (19) and above the second pipes (18). An adjustment unit is provided on the outer wall of the air inlet pipe (19). The adjustment unit includes a collar (24), which is disposed on the outer wall of the air intake pipe (19) and slidably connected to the air intake pipe (19). A second hydraulic cylinder (23) is fixedly connected to the bottom of the second pipe (18), and the output end of the second hydraulic cylinder (23) is fixedly connected to the collar (24). A plurality of second air intake grooves (26) are equidistantly opened on the outer wall of the air intake pipe (19). A second air outlet groove (28) is opened at the bottom of the air intake pipe (19). A plurality of third air intake grooves (27) are equidistantly opened on the outer wall of the air intake pipe (19) and below the second air intake grooves (26). The third air intake grooves (27) are connected to the second air outlet grooves (28). A cavity (25) is opened on the inner wall of the collar (24), and the cavity (25) is annular. The inner wall of the collar (24) is symmetrically fixedly connected to two sliding shafts (31), and the outer walls of the two sliding shafts (31) are slidably connected to sliding plates (33). A grinding block (34) is fixedly connected between the two sliding plates (33). A spring (32) is sleeved on the outer wall of the sliding shaft (31). The top of the spring (32) is fixedly connected to the collar (24), and the bottom of the spring (32) is fixedly connected to the sliding plate (33). The bottom of the collar (24) is fixedly connected to an air-gathering ring (36), the bottom of which is inclined inward. The top of the grinding block (34) is fixedly connected to a flow divider (35), the top of which is set as a symmetrical inclined surface.

2. The welding treatment apparatus for manufacturing mechanical parts according to claim 1, characterized in that, The top of the base (1) is symmetrically fixedly connected to two second brackets (37), the top of the two second brackets (37) is fixedly connected to the mounting plate (38), and a guide plate (39) is fixedly connected to one side of the two mounting plates (38). The two guide plates (39) are installed at an angle, and a baffle (40) is fixedly connected to one side of the two guide plates (39). The two baffles (40) are both set to be arc-shaped.

3. The welding treatment apparatus for manufacturing mechanical parts according to claim 2, characterized in that, An air guide ring (30) is fixedly connected to the inner wall of the air intake pipe (19) and below the second pipe (18), and the top of the air guide ring (30) is set as an annular inclined surface.

4. The welding treatment apparatus for manufacturing mechanical parts according to claim 3, characterized in that, The clamping assembly includes two first brackets (10), which are respectively fixedly installed on the outer walls of two side plates (5). The top of each of the two first brackets (10) is fixedly connected to a fixing ring (11). A plurality of first hydraulic cylinders (12) are fixedly connected at equal intervals on the inner wall of the fixing ring (11). The output end of the first hydraulic cylinder (12) is fixedly connected to a clamping plate (13). The inner wall of the clamping plate (13) is fixedly connected to a rotating shaft (14). The outer wall of the rotating shaft (14) is rotatably connected to a pulley (15).

5. The welding treatment apparatus for manufacturing mechanical parts according to claim 4, characterized in that, The outer wall of the pulley (15) is provided with several rubber rings (16) at equal intervals.

6. A method for operating a welding treatment apparatus for manufacturing mechanical parts, the method being applicable to the welding treatment apparatus for manufacturing mechanical parts as described in claim 5, characterized in that: The steps for this operation are as follows: S1: Insert the pipe into the fixing ring (11), start several first hydraulic cylinders (12) to make several clamping plates (13) move closer to each other to clamp the pipe, start the first motor (2) to drive two clamping blocks (7) to move closer to each other to clamp the two ends of the two pipe sections; S2: Start the second hydraulic cylinder (23), control the grinding block (34) to move downwards, cooperate with the rotating pipe to grind the weld excess of the pipe, and then control the two fixing rings (11) to move away from each other to check whether the two pipe sections are poorly welded; S3: Test the air tightness of the two pipe sections after welding. If it is determined that the welding is to be repaired, hot air is sprayed out through the air inlet pipe (19) to dry the leak detection agent on the surface of the pipe weld.

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