Welding treatment device for mechanical part manufacturing and operation method thereof

Abstract

The invention belongs to the field of mechanical part manufacturing, and particularly relates to a welding treatment device for mechanical part manufacturing and an operation method thereof.The welding treatment device comprises a base, a welding head is arranged at the top of the base, a first motor is fixedly connected to one side of the base, and the output end of the first motor extends into the base and is fixedly connected with a two-way lead screw; according to the welding treatment device for mechanical part manufacturing and the operation method of the welding treatment device, the circulating direction of gas can be adjusted by adjusting the position of the lantern ring, the gas can independently enter a pipe, the gas can be sprayed out from the bottom of the gas inlet pipeline, a leakage detecting agent at the welding position of the pipe is dried, and the leakage detecting effect is improved. Through guiding of the inclined face of the inner wall of the gas gathering ring, sprayed gas is more concentrated, through guiding of the two guiding plates, hot gas circulates downwards along the inclined faces of the guiding plates, through wrapping of the inner concave faces of the two baffles, the hot gas is prevented from being rapidly diffused, the retention time of the hot gas around a welding seam is prolonged, and the drying effect on the leakage detecting agent is better.

Description

Technical Field

[0001] The present invention belongs to the field of mechanical part manufacturing, and specifically relates to a welding treatment device and an operation method for mechanical part manufacturing. Background Art

[0002] Welding is a manufacturing process and technology for joining metals or other thermoplastic materials such as plastics by means of heating, high temperature or high pressure. Mechanical parts, also known as mechanical components, are the basic components that make up a machine. They are individual non-detachable parts that make up a machine. There are many types of mechanical parts, and most of them need to be welded. For example, stainless steel pipes are widely used in pipeline systems and are important parts of pipelines.

[0003] After welding the pipes, it is generally necessary to perform a leak tightness test on the joints of adjacent two sections of pipes. In the existing technology, generally, a leak detection agent is applied to the weld surface, and then the pipe is sealed and filled with gas to observe whether bubbles are generated. However, after the leak tightness detection of the pipe, it is not convenient to deal with the applied leak detection agent. When it is necessary to repair weld the weld, with the evaporation of the leak detection agent during high-temperature welding, pores are more likely to be generated at the repair weld, affecting the leak tightness of the pipe. Moreover, if there are gaps at the welded joints of the pipe, the leak detection agent will penetrate into the gaps, making it even more difficult to handle. In addition, the pores originally covered by the weld surface are likely to communicate with the outside after grinding, forming a gas leakage channel. If not detected in time, it will cause the welded pipe to leak air after grinding the excess weld height.

[0004] Therefore, the present invention provides a welding treatment device and an operation method for mechanical part manufacturing. Summary of the Invention

[0005] In order to make up for the deficiencies of the existing technology and solve the problems that after the leak tightness detection of the pipe, it is not convenient to deal with the applied leak detection agent. When it is necessary to repair weld the weld, with the evaporation of the leak detection agent during high-temperature welding, pores are more likely to be generated at the repair weld, affecting the leak tightness of the pipe. Moreover, if there are gaps at the welded joints of the pipe, the leak detection agent will penetrate into the gaps, making it even more difficult to handle. In addition, the pores originally covered by the weld surface are likely to communicate with the outside after grinding, forming a gas leakage channel. If not detected in time, it will cause the welded pipe to leak air after grinding the excess weld height, the present invention proposes a welding treatment device and an operation method for mechanical part manufacturing.

[0006] The technical solution adopted by the present invention to solve its technical problems 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 installed on 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. The outer wall of the bidirectional lead screw is connected to two sliders through a lead screw nut pair. The two sliders are symmetrically installed and are both slidably connected to the base. The tops of the two sliders are fixedly connected to side plates. A clamping assembly is provided on the top of the base. A second motor is fixedly installed on 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. One side of the clamping block penetrates through the side plate and is fixedly connected to a rubber pad. A through groove is opened in the interior of the side plate. An air delivery assembly is provided above the base.

[0007] Preferably, the air delivery assembly includes an intake pipe. The intake pipe is located above the base and between the two side plates. Two second pipes are symmetrically and fixedly connected to the outer wall of the intake pipe. The outer walls of the two second pipes are both slidably connected to a first pipe. The first pipe is fixedly connected to the side plate and one end of it extends into the interior of the through groove. A first air outlet groove is opened on one side of the clamping block. A number of first air inlet grooves are equidistantly opened on the outer wall of the clamping block. The first air inlet grooves communicate with the first air outlet groove. The through groove fits the outer wall of the clamping block. A heating wire is provided on the inner wall of the intake pipe and above the second pipe. An adjustment unit is provided on the outer wall of the intake pipe.

[0008] Preferably, the adjustment unit includes a collar. The collar is arranged on the outer wall of the intake pipe and is slidably connected to the intake pipe. A second hydraulic cylinder is fixedly connected to the bottom of the second pipe. The output end of the second hydraulic cylinder is fixedly connected to the collar. A number of second air inlet grooves are equidistantly opened on the outer wall of the intake pipe. A second air outlet groove is opened at the bottom of the intake pipe. A number of third air inlet grooves are equidistantly opened on the outer wall of the intake pipe and below the second air inlet grooves. The third air inlet grooves communicate with the second air outlet groove. A cavity is opened in the inner wall of the collar. The cavity is arranged in a ring shape.

[0009] Preferably, two sliding shafts are symmetrically and fixedly connected to the inner wall of the collar. The outer walls of the two sliding shafts are both slidably connected to a sliding plate. 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. The bottom of the spring is fixedly connected to the sliding plate.

[0010] Preferably, a gas collecting ring is fixedly connected to the bottom of the collar. The bottom of the gas collecting ring inclines inward. A flow dividing block is fixedly connected to the top of the grinding block. The top of the flow dividing block is arranged as a symmetric inclined plane.

[0011] Preferably, two second brackets are symmetrically and fixedly connected to the top of the base. The tops of the two second brackets are fixedly connected to the mounting plates. One side of each of the two mounting plates is fixedly connected to a guide plate. The two guide plates are both obliquely installed. One side of each of the two guide plates is fixedly connected to a baffle plate, and the two baffle plates are both arc-shaped.

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

[0013] Preferably, the clamping mechanism includes two first brackets which are respectively fixedly installed on the outer walls of the two side plates. The tops of the two first brackets are fixedly connected to fixing rings. A plurality of first hydraulic cylinders are equidistantly fixedly connected to the inner walls of the fixing rings. The output ends of the first hydraulic cylinders are fixedly connected to clamping plates. A rotating shaft is fixedly connected to the inner wall of the clamping plate, and a pulley is rotatably connected to the outer wall of the rotating shaft.

[0014] Preferably, a plurality of rubber rings are equidistantly arranged on the outer wall of the pulley.

[0015] An operation method of a welding treatment device for manufacturing mechanical parts, which is applicable to the above-mentioned welding treatment device for manufacturing mechanical parts. The steps of the operation method are as follows: S1: Insert the pipe into the fixing ring, start a plurality of first hydraulic cylinders to make the plurality of clamping plates approach each other to clamp the pipe, and start the first motor to drive the two clamping blocks to approach each other to clamp the two ends of the two pipes. S2: Start the second hydraulic cylinder, control the grinding block to move downward, cooperate with the rotating pipe to grind the weld reinforcement of the pipe, and then control the two fixing rings to move away from each other to detect whether the two pipes are poorly welded. S3: Detect the air tightness of the two welded pipes. In the case of determining repair welding, spray hot air through the intake pipe to dry the leak detection agent on the surface of the welded part of the pipe.

[0016] The beneficial effects of the present invention are as follows: 1. For the welding treatment device and its operation method for manufacturing mechanical parts according to the present invention, by adjusting the position of the sleeve ring, the flow direction of the gas can be adjusted, which can not only make the gas enter the inside of the pipe alone, but also make the gas spray out from the bottom of the intake pipe to dry the leak detection agent at the welded part of the pipe.

[0017] 2. For a welding treatment device and its operation method for manufacturing mechanical parts according to the present invention, through the guiding of the inner inclined surface of the air-gathering ring, the ejected gas becomes more concentrated. Through the guiding of two guiding plates, the hot air flows downward along the inclined surfaces of the guiding plates. Through the wrapping of the concave surfaces of two baffles, the rapid diffusion of the hot air is prevented, the residence time of the hot air around the weld seam is prolonged, and the drying effect on the leak detection agent is better.

[0018] 3. For a welding treatment device and its operation method for manufacturing mechanical parts according to the present invention, by adjusting the position of the adjusting collar, the grinding block can process the weld reinforcement at the welded joint of the pipe. After processing the weld reinforcement, the two sections of the pipe are promptly inflated to detect airtightness, thereby preventing the pipe from leaking air due to the processing of the weld reinforcement during subsequent processing.

[0019] 4. For a welding treatment device and its operation method for manufacturing mechanical parts according to the present invention, by intercepting part of the hot air with the provided air guiding ring, part of the hot air flows along the inclined surface at the top of the air guiding ring and enters the second pipeline, and then the hot air enters the interior of the pipe, thereby heating the interior of the pipe. And through the wrapping of the pipe itself, the hot air is not easily diffused after entering. By heating the interior of the pipe, it is convenient to dry the leak detection agent inside the weld seam and prevent the leak detection agent from penetrating into the interior of the weld seam and being difficult to clean.

[0020] 5. For a welding treatment device and its operation method for manufacturing mechanical parts according to the present invention, through the provided several rubber rings, it is convenient to increase the lateral friction between the pipe and the pulley. After welding two sections of the pipe, the two sections of the pipe are pulled by several rubber rings to detect whether there is a false weld between the two sections of the pipe. When the two sections of the pipe are torn apart, the operation of repairing the weld can be directly carried out. When the two sections of the pipe are not torn apart, it is necessary to detect its airtightness. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 is a perspective view of the present invention; Figure 2 is a sectional view of the present invention; Figure 3 is a side sectional view at the intake pipe of the present invention; Figure 4 is a perspective view of the cooperation of the clamping block and the first intake groove of the present invention; Figure 5 is a perspective view of the cooperation of the fixing ring and the clamping plate of the present invention; Figure 6 is a perspective view of the cooperation of the guiding plate and the baffle of the present invention; Figure 7 is the present invention Figure 2 The enlarged view at A in; Figure 8 is the enlarged view of part B in the present invention Figure 2 ; Figure 9 is the enlarged view of part C in the present invention Figure 2 ; Figure 10 is the enlarged view of part D in the present invention Figure 2 .

[0023] In the figure: 1, base; 2, first motor; 3, bidirectional 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 pipeline; 18, second pipeline; 19, intake pipeline; 20, through groove; 21, first intake groove; 22, first exhaust groove; 23, second hydraulic cylinder; 24, collar; 25, cavity; 26, second intake groove; 27, third intake groove; 28, second exhaust groove; 29, heating wire; 30, air guide ring; 31, sliding shaft; 32, spring; 33, sliding plate; 34, grinding block; 35, flow dividing block; 36, air gathering ring; 37, second bracket; 38, mounting plate; 39, guiding plate; 40, baffle plate. Specific Embodiments

[0024] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0025] As Figures 1 to 10 shown, the present invention provides a technical solution, a welding treatment device for manufacturing mechanical parts, including a base 1, a welding head 9 is arranged on the top of the base 1, a first motor 2 is fixedly installed on one side of the base 1, the output end of the first motor 2 extends to the inside of the base 1 and is fixedly connected with a bidirectional lead screw 3, the outer wall of the bidirectional lead screw 3 is connected with two sliders 4 through a lead screw nut pair, the two sliders 4 are symmetrically installed and are both slidably connected with the base 1, the tops of the two sliders 4 are both fixedly connected with side plates 5, a clamping assembly is arranged on the top of the base 1, a second motor 6 is fixedly installed on one side of the side plate 5, the output end of the second motor 6 extends to the inside of the side plate 5 and is fixedly connected with a clamping block 7, the clamping block 7 is rotatably connected with the side plate 5, one side of the clamping block 7 penetrates through the side plate 5 and is fixedly connected with a rubber pad 8, a through groove 20 is opened in the side plate 5, and an air delivery assembly is arranged above the base 1.

[0026] Through the above technical solution, the two sections of pipe materials are clamped and fixed by the clamping assembly. The first motor 2 is started to drive the bidirectional lead screw 3 to rotate, so that the two sliders 4 approach each other, driving the two side plates 5 to approach each other. The two ends of the two sections of pipe materials are clamped by the two clamping blocks 7. Through the provided rubber pad 8, the friction force of the clamping block 7 on the pipe material is increased. The connection part of the two sections of pipe materials is preliminarily welded by the welding head 9. Subsequently, the second motor 6 is started to drive the clamping block 7 and the rubber pad 8 to rotate, so that the two sections of pipe materials rotate synchronously. The connection part of the two sections of pipe materials is continuously welded in a circumferential manner by the welding head 9. After the welding is completed, a leak detection agent is applied to the surface of the welded joint of the two sections of pipe materials. The two ends of the two sections of pipe materials are sealed by the air delivery assembly, and gas is introduced into the interior of the pipe material. Whether there are bubbles emerging from the welded joint is observed to judge the airtightness of the pipe material after welding. When there are gaps at the welded joint of the pipe material, the air delivery assembly is adjusted to dry the leak detection agent on the surface of the pipe material, preventing pores from appearing at the repair welding position due to the evaporation of the leak detection agent during repair welding.

[0027] Specifically, the air delivery assembly includes an intake pipe 19. The intake pipe 19 is located above the base 1 and between the two side plates 5. Two second pipes 18 are symmetrically and fixedly connected to the outer wall of the intake pipe 19. The outer walls of the two second pipes 18 are both slidably connected with a first pipe 17. The first pipe 17 is fixedly connected to the side plate 5 and one end of it extends into the through groove 20. A first air outlet groove 22 is formed on one side of the clamping block 7. A plurality of first air inlet grooves 21 are equidistantly formed on the outer wall of the clamping block 7. The first air inlet grooves 21 communicate with the first air outlet groove 22. The through groove 20 fits the outer wall of the clamping block 7. An electric heating wire 29 is arranged on the inner wall of the intake pipe 19 and above the second pipe 18. An adjusting unit is arranged on the outer wall of the intake pipe 19.

[0028] Through the above technical solution, the outer wall of the intake pipe 19 is sealed by the adjusting unit. Gas is input through the intake pipe 19. After the gas enters the 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 inlet groove 21, and is discharged from the first air outlet groove 22 and enters the interior of the two sections of pipe materials.

[0029] Specifically, the adjusting unit includes a collar 24. The collar 24 is arranged on the outer wall of the intake pipe 19 and is slidably connected with the intake pipe 19. The bottom of the second pipe 18 is fixedly connected with a second hydraulic cylinder 23. The output end of the second hydraulic cylinder 23 is fixedly connected with the collar 24. A plurality of second air inlet grooves 26 are equidistantly formed on the outer wall of the intake pipe 19. A second air outlet groove 28 is formed at the bottom of the intake pipe 19. A plurality of third air inlet grooves 27 are equidistantly formed on the outer wall of the intake pipe 19 and below the second air inlet grooves 26. The third air inlet grooves 27 communicate with the second air outlet groove 28. A cavity 25 is formed on the inner wall of the collar 24. The cavity 25 is arranged in a ring shape.

[0030] Through the above technical solution, the second hydraulic cylinder 23 can control the up and down movement of the collar 24. When it is necessary to inflate the inside of the pipe to detect airtightness, the second hydraulic cylinder 23 is used to control 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 the outside of the second air inlet groove 26 to seal the second air inlet groove 26. Thus, the gas introduced into the intake pipe 19 cannot flow downward and can only enter the second pipe 18. When it is detected that there is a gap at the welded joint of the pipe that needs to be repaired by welding, the second hydraulic cylinder 23 is used to control 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 started to heat the gas introduced into the intake pipe 19. At this time, the gas introduced into the intake pipe 19 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 sprays downward from the second air outlet groove 28. Thus, it is convenient to dry the surface of the welded joint of the pipe. At the same time, the second motor 6 is started to drive the pipe to rotate, so that the hot air dries different positions of the weld seam.

[0031] Specifically, two sliding shafts 31 are symmetrically and fixedly connected to the inner wall of the collar 24. The outer walls of the two sliding shafts 31 are both slidably connected with 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.

[0032] Through the above technical solution, after welding two sections of pipes, the second hydraulic cylinder 23 is used to control the collar 24 to move downward, so that the grinding block 34 moves downward. Through the arranged spring 32, the grinding block 34 is made to press against the welded joint of the pipe. The second motor 6 is started to drive the pipe to rotate. Thus, in cooperation with the grinding block 34, it is convenient to process the weld reinforcement at the welded joint of the pipe. After processing the weld reinforcement, the two sections of pipes are timely inflated to detect airtightness. Thus, it is prevented that the pipe leaks air due to the processing of the weld reinforcement in the subsequent processing.

[0033] Specifically, a gas collecting ring 36 is fixedly connected to the bottom of the collar 24. The bottom of the gas collecting ring 36 is inclined inward. 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 provided with symmetrical inclined surfaces.

[0034] Through the above technical solution, after the gas sprays downward from the second air outlet groove 28, through the division of the inclined surface at the top of the flow dividing block 35, the gas is divided into two streams and flows downward. And through the guiding of the inclined surface on the inner wall of the gas collecting ring 36, the sprayed gas is made more concentrated. Thus, it is convenient to maintain the temperature of the gas, prevent the hot air from quickly diffusing, and improve the drying speed of the leak detection agent.

[0035] Specifically, two second brackets 37 are symmetrically and fixedly connected to the top of the base 1. The tops of the two second brackets 37 are both fixedly connected to the mounting plate 38. One side of each of the two mounting plates 38 is fixedly connected with a guide plate 39. The two guide plates 39 are both inclinedly installed. One side of each of the two guide plates 39 is fixedly connected with a baffle 40. The two baffles 40 are both arc-shaped.

[0036] Through the above technical solution, the hot air ejected from the collar 24 hits the arc surface at the top of the pipe and then diffuses to both sides. Guided by the two guide plates 39, the hot air flows downward along the inclined surface of the guide plate 39. Wrapped by the concave surfaces of the two baffles 40, the rapid diffusion of the hot air is prevented, the residence time of the hot air around the weld is prolonged, and the drying effect on the leak detection agent is better.

[0037] Specifically, an air guide ring 30 is fixedly connected to the inner wall of the intake pipe 19 and below the second pipe 18. The top of the air guide ring 30 is set as an annular inclined surface.

[0038] Through the above technical solution, when drying the leak detection agent at the weld of the pipe, when the hot air flows along the intake pipe 19, part of the hot air is intercepted by the provided air guide ring 30, and part of the hot air flows along the inclined surface at the top of the air guide ring 30 and enters the second pipe 18, so that the hot air enters the inside of the pipe, thereby heating the inside of the pipe. And due to the wrapping of the pipe itself, the hot air is not easy to diffuse after entering. By heating the inside of the pipe, it is convenient to dry the leak detection agent inside the weld and prevent the leak detection agent from penetrating into the weld and being difficult to clean.

[0039] Specifically, the clamping includes two first brackets 10. The two first brackets 10 are respectively fixedly installed on the outer walls of the two side plates 5. The tops of the two first brackets 10 are both fixedly connected with fixing rings 11. A number of first hydraulic cylinders 12 are equidistantly fixedly connected to the inner wall of the fixing ring 11. The output end of the first hydraulic cylinder 12 is fixedly connected with a clamping plate 13. A rotating shaft 14 is fixedly connected to the inner wall of the clamping plate 13. A pulley 15 is rotatably connected to the outer wall of the rotating shaft 14.

[0040] Through the above technical solution, when welding two pipes, the pipes are inserted into the fixing ring 11, and a number of first hydraulic cylinders 12 are started to make a number of clamping plates 13 approach each other. After a number of clamping plates 13 approach each other, a number of pulleys 15 are attached to the surface of the pipe. Through the clamping of a number of pulleys 15, it is not only convenient to position the pipe, but also convenient to rotate the pipe.

[0041] Specifically, a number of rubber rings 16 are equidistantly arranged on the outer wall of the pulley 15.

[0042] Through the above technical solution, by providing a plurality of rubber rings 16, it is convenient to increase the lateral friction between the pipe and the pulley 15. After welding two sections of pipes, the first motor 2 is used to control the two sliders 4 to move away from each other, so that the two fixing rings 11 move away from each other. The two sections of pipes are pulled by the plurality of rubber rings 16 to detect whether there is a lack of fusion between the two sections of pipes. When the two sections of pipes are torn apart, the operation of repairing the weld can be directly carried out. When the two sections of pipes are not torn apart, it is necessary to detect their airtightness.

[0043] An operation method of a welding treatment device for manufacturing mechanical parts, which is applicable to the above-mentioned welding treatment device for manufacturing mechanical parts. The steps of the operation method are as follows: S1: Insert the pipe into the fixing ring 11, start a plurality of first hydraulic cylinders 12, so that a plurality of clamping plates 13 move closer to clamp the pipe, and start the first motor 2 to drive the two clamping blocks 7 to move closer to clamp the two ends of the two sections of pipes. S2: Start the second hydraulic cylinder 23, control the grinding block 34 to move downward, and cooperate with the rotating pipe to grind the excess weld height of the pipe. Then control the two fixing rings 11 to move away from each other to detect whether there is a lack of fusion between the two sections of pipes. S3: Detect the airtightness of the two welded pipes. In the case of determining that repair welding is required, hot air is sprayed through the air inlet pipe 19 to dry the leak detection agent on the surface of the welded joint of the pipe.

[0044] First, when welding two sections of pipe, insert the pipe into the fixed ring 11, start several first hydraulic cylinders 12, and make several clamping plates 13 approach each other. After several clamping plates 13 approach each other, several pulleys 15 fit on 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. Start the first motor 2 to drive the bidirectional lead screw 3 to rotate, make two sliders 4 approach each other, and drive two side plates 5 to approach each other. Clamp the two ends of the two sections of pipe through two clamping blocks 7. Through the provided rubber pad 8, increase the friction between the clamping block 7 and the pipe. Initially weld the connection of the two sections of pipe through the welding head 9. Subsequently, start the second motor 6 to drive the clamping block 7 and the rubber pad 8 to rotate, so that the two sections of pipe rotate synchronously, and continue to perform circumferential welding on the connection of the two sections of pipe through the welding head 9. Through the provided several rubber rings 16, it is convenient to increase the lateral friction between the pipe and the pulley 15. After welding the two sections of pipe, control the collar 24 to move downward through the second hydraulic cylinder 23, so that the grinding block 34 moves downward. Through the provided spring 32, make the grinding block 34 press tightly against the welded part of the pipe. Start the second motor 6 to drive the pipe to rotate, and thus cooperate with the grinding block 34 to facilitate the treatment of the weld reinforcement at the welded part of the pipe. After treating the weld reinforcement, inflate the two sections of pipe in time to detect the air tightness, thereby preventing the pipe from leaking air due to the treatment of the weld reinforcement in subsequent processing. Control the two sliders 4 to move away from each other through the first motor 2, so that the two fixed rings 11 move away from each other. Pull the pipe through several rubber rings 16 to detect whether there is a lack of fusion between the two sections of pipe. When the two sections of pipe are torn apart, the operation of repairing the weld can be directly carried out. When the two sections of pipe are not torn apart, it is necessary to detect its air tightness. Apply a leak detection agent on the surface of the welded part of the two sections of pipe. Control the collar 24 to move upward through the second hydraulic cylinder 23, 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 to seal the second air inlet groove 26, thereby preventing the gas introduced into the air inlet pipe 19 from flowing downward. Input gas through the air inlet pipe 19. After the gas enters the air inlet pipe 19, it flows along the second pipe 18 and the first pipe 17, then enters the through groove 20, and then enters the clamping block 7 along the through groove 20 and the first air inlet groove 21, and then discharges from the first air outlet groove 22 and enters the inside of the two sections of pipe. Judge the air tightness after welding the pipe by observing whether there are bubbles emerging at the welded part. When there is a gap at the welded part of the pipe, it is necessary to repair the weld. Control the collar 24 to move downward through the second hydraulic cylinder 23, so that the cavity 25 moves to the outside of the second air inlet groove 26 and the third air inlet groove 27. Start the heating wire 29 to heat the gas introduced into 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 provided 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, and then the hot gas enters the inside of the pipe, thereby heating the inside of the pipe, and through the wrapping of the pipe itself,After the hot air enters, it is not easy to diffuse. By heating the inside of the pipe, it is convenient to dry the leak detection agent inside the weld, preventing the leak detection agent from penetrating into the inside of the weld and being 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, and then enters the second air outlet groove 28 along the third air inlet groove 27 and sprays downward from the second air outlet groove 28. Thus, it is convenient to dry the surface of the welded part of the pipe. At the same time, the second motor 6 is started to drive the pipe to rotate, so that the hot air dries different positions of the weld. When the gas sprays downward from the second air outlet groove 28, through the division of the top inclined surface of the flow dividing block 35, the gas is divided into two streams and flows downward, and through the guiding of the inner wall inclined surface of the air gathering ring 36, the sprayed gas is more concentrated. Thus, it is convenient to maintain the temperature of the gas, prevent the hot air from quickly diffusing, and improve the drying speed of the leak detection agent. The hot air sprayed from the collar 24 hits the arc surface at the top of the pipe and then diffuses to both sides. Through the guiding of the two guiding plates 39, the hot air flows downward along the inclined surface of the guiding plate 39. Through the wrapping of the concave surfaces of the two baffles 40, the hot air is prevented from quickly diffusing, prolonging the staying time of the hot air around the weld, and having a better drying effect on the leak detection agent.

[0045] The above front, back, left, right, up, and down are all based on the Figure 1 description in the accompanying drawings of the specification. Taking the observer's viewing angle as the standard, the side of the device facing the observer is defined as the front, and the left side of the observer is defined as the left, and so on.

[0046] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the protection scope of the present invention.

[0047] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding processing device for manufacturing mechanical parts, characterized in that, It includes a base (1). A welding head (9) is provided at the top of the base (1). A first motor (2) is fixedly installed on 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 both slidably connected to the base (1). The tops of the two sliders (4) are both fixedly connected to side plates (5). A clamping assembly is provided at the top of the base (1). A second motor (6) is fixedly installed on 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 through the side plate (5) and is fixedly connected to a rubber pad (8). A through groove (20) is opened in the interior of the side plate (5). An air supply assembly is provided above the base (1).

2. The welding treatment device for manufacturing mechanical parts according to claim 1, wherein, The air supply assembly includes an air inlet pipe (19). The air inlet pipe (19) is located above the base (1) and between the two side plates (5). Two second pipes (18) are symmetrically and fixedly connected to the outer wall of the air inlet pipe (19). A first pipe (17) is slidably connected to the outer walls 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 opened on one side of the clamping block (7). A number of first air inlet grooves (21) are equidistantly opened on the outer wall of the clamping block (7). The first air inlet grooves (21) communicate with the first air outlet groove (22). The through groove (20) fits 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 pipe (18). An adjusting unit is provided on the outer wall of the air inlet pipe (19).

3. A welding processing device for manufacturing mechanical parts according to claim 2, characterized in that, The adjusting unit includes a collar (24). The collar (24) is arranged on the outer wall of the air inlet pipe (19) and is slidably connected to the air inlet pipe (19). A second hydraulic cylinder (23) is fixedly connected to the bottom of the second pipe (18). The output end of the second hydraulic cylinder (23) is fixedly connected to the collar (24). A number of second air inlet grooves (26) are equidistantly opened on the outer wall of the air inlet pipe (19). A second air outlet groove (28) is opened at the bottom of the air inlet pipe (19). A number of third air inlet grooves (27) are equidistantly opened on the outer wall of the air inlet pipe (19) and below the second air inlet grooves (26). The third air inlet grooves (27) communicate with the second air outlet groove (28). A cavity (25) is opened in the inner wall of the collar (24). The cavity (25) is arranged in a ring shape.

4. A welding treatment device for manufacturing mechanical parts according to claim 3, characterized in that, The inner wall of the collar (24) is symmetrically and fixedly connected with two sliding shafts (31). The outer walls of the two sliding shafts (31) are both slidably connected with 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 with the collar (24), and the bottom of the spring (32) is fixedly connected with the sliding plate (33).

5. A welding processing device for manufacturing mechanical parts according to claim 4, characterized in that, The bottom of the collar (24) is fixedly connected with an air-gathering ring (36). The bottom of the air-gathering ring (36) inclines inwards. The top of the grinding block (34) is fixedly connected with a flow-dividing block (35). The top of the flow-dividing block (35) is provided with symmetric inclined planes.

6. A welding treatment device for manufacturing mechanical parts according to claim 5, characterized in that, The top of the base (1) is symmetrically and fixedly connected with two second brackets (37). The tops of the two second brackets (37) are both fixedly connected with mounting plates (38). One side of each of the two mounting plates (38) is fixedly connected with a guide plate (39). The two guide plates (39) are both inclinedly installed. One side of each of the two guide plates (39) is fixedly connected with a baffle (40). The two baffles (40) are both arc-shaped.

7. A welding treatment device for manufacturing mechanical parts according to claim 6, characterized in that, An air guide ring (30) is fixedly connected to the inner wall of the air inlet pipe (19) and below the second pipe (18). The top of the air guide ring (30) is provided with an annular inclined plane.

8. A welding processing device for manufacturing mechanical parts according to claim 7, characterized in that, The clamping mechanism includes two first brackets (10). The two first brackets (10) are respectively fixedly installed on the outer walls of the two side plates (5). The tops of the two first brackets (10) are both fixedly connected with fixing rings (11). A number of first hydraulic cylinders (12) are equidistantly and fixedly connected to the inner walls of the fixing rings (11). The output ends of the first hydraulic cylinders (12) are fixedly connected with clamping plates (13). A rotating shaft (14) is fixedly connected to the inner wall of the clamping plate (13). A pulley (15) is rotatably connected to the outer wall of the rotating shaft (14).

9. A welding processing device for manufacturing mechanical parts according to claim 8, characterized in that, A number of rubber rings (16) are equidistantly arranged on the outer wall of the pulley (15).

10. An operating method for a welding processing device used in manufacturing mechanical parts, which is applicable to the welding processing device for manufacturing mechanical parts described in claim 9 above, characterized in that: The operation method is as follows: S1: Insert the pipe into the fixing ring (11). Start a number of first hydraulic cylinders (12) to make a number of clamping plates (13) approach each other to clamp the pipe. Start the first motor (2) to drive the two clamping blocks (7) to approach each other to clamp the two ends of the two pipes. S2: Start the second hydraulic cylinder (23) to control the grinding block (34) to move downwards. Cooperate with the rotating pipe to grind the excess height of the weld of the pipe. Then control the two fixing rings (11) to move away from each other to detect whether the two pipes are poorly welded. S3: Detect the air tightness of the two welded pipes. In the case of determining re-welding, spray hot air through the air inlet pipe (19) to dry the leak detection agent on the surface of the welded joint of the pipe.

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