Automatic grinding integrated machining device for welding seam of welded pipe

Abstract

The invention relates to the technical field of welding machining equipment, and discloses a welded pipe welding seam automatic grinding integrated machining device which comprises a base table, a treatment barrel is arranged in the middle of the top end of the base table, and the interior of the treatment barrel is sequentially composed of an upper treatment cavity, a middle treatment cavity and a lower treatment cavity from top to bottom; the top base is arranged on the upper portion of the base table, and an electromagnet base used for auxiliary discharging of the welded pipes is arranged in the middle of the top base; and the welded pipe treatment mechanism is used for carrying out front-end pretreatment on the welding seams on the welded pipes with different sizes and specifications. By adding and arranging the welded pipe treatment mechanism, the mechanism optimizes the coping environment through the two-way effect of preheating and drying before coping treatment is conducted on a weld joint on a welded pipe, before coping, heating gas can not only preheat a weld joint area and reduce the influence of hardness fluctuation on coping, but also can dry liquid left on the surface, and after coping, the weld joint area can be subjected to secondary grinding. And hot air can quickly remove residual abrasive dust and liquid on the surface, so that pollutants are prevented from being attached to influence subsequent procedures.

Description

Technical Field

[0001] The invention relates to the technical field of welding processing equipment, in particular to an automatic grinding and integrated processing device for a welded pipe weld. Background Art

[0002] In the fields of industrial fluid transportation, energy transmission, and municipal pipeline networks, the pipeline system is the core carrier of material and energy transfer, and its stable operation is directly related to production safety and efficiency. As a key component of the pipeline system, pipe fittings realize the structural layout of the pipeline through functions such as connection, control, direction change, and diversion. Welding has become the most mainstream connection method for large-diameter pipelines and high-pressure conditions due to its advantages such as high connection strength and good sealing. During the welding process, the solidification of the molten pool in the weld area will form a raised excess height and irregular surface morphology. If not treated, it will not only lead to increased fluid resistance and intensified stress concentration, but also affect the adhesion of subsequent anti-corrosion coatings due to excessive surface roughness. Therefore, the grinding of welds has become a key process to ensure the mechanical properties and appearance quality of the pipeline system. Current mainstream weld grinding techniques rely primarily on rigid grinding wheels or abrasive belts, achieving finishing through mechanical friction between the high-speed rotating abrasive and the weld surface. However, the complexity of the welding process makes the weld area susceptible to localized performance fluctuations: affected by differences in welding current and voltage stability, as well as the cooling rate of the molten pool, the hardness of the weld and heat-affected zone often exhibits deviations of ±30-50 HV. The hardness of some high-grade pipeline welds can even fluctuate by as much as ±80 HV.

[0003] This uneven hardness makes it difficult for traditional rigid grinding tools to adaptively adjust the grinding intensity. This leads to a common phenomenon where "hard areas remain unground and soft areas are over-ground into the base material." In severe cases, this can result in insufficient weld thickness or damage to the base material. Furthermore, the metal dust generated during mechanical grinding not only causes irreversible damage to the operator's respiratory system but also adheres to the surface of production equipment, causing wear on precision components. Therefore, those skilled in the art have proposed an integrated automatic grinding device for welded pipe welds to address these technical issues. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the present invention provides an integrated automatic grinding processing device for welded pipe welds, which solves the problem that the existing grinding method easily causes the hard area to be not ground and the soft area to be over-ground.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a device for automatically grinding and processing weld seams of welded pipes, comprising: The base has a processing barrel at the top middle part of the base, and the interior of the processing barrel is composed of an upper processing chamber, a middle processing chamber and a lower processing chamber from top to bottom; A top seat is provided on the upper part of the base, and an electromagnet seat for auxiliary discharge of the welded pipe is provided in the middle part of the top seat; The welded pipe processing mechanism is arranged in the upper processing chamber and is used to pre-process the weld seams on welded pipes of different sizes and specifications; The front and rear processing mechanism is arranged in the middle processing chamber and is used to preheat the front end of the weld seam of the front and rear welded pipes and dry the rear end; An automatic grinding mechanism is provided in the lower processing chamber and is used for automatically grinding the weld seam on the welded pipe; The auxiliary elimination mechanism is arranged in the middle processing chamber and is used for performing auxiliary elimination processing on the welded pipe during the processing.

[0006] Preferably, the welded pipe processing mechanism includes a matching socket, and a plurality of matching sockets of different shapes and specifications are provided on the top of the processing barrel. The inner walls of the matching sockets are provided with mounting sleeves that match their shapes and specifications, and the inner walls of the mounting sleeves are provided with sponge sleeves, and the outer walls of the sponge sleeves are covered with a steel wire friction layer.

[0007] Preferably, the welded pipe processing mechanism also includes a dilute hydrochloric acid storage ring seat, a dilute hydrochloric acid storage ring seat is provided on the top of the outer wall of the processing barrel, and seepage channels are provided on the upper and lower sides of the middle part of the interior of the mounting sleeve. The interior of the dilute hydrochloric acid storage ring seat is connected to the interior of the corresponding seepage channel through the internal channel on the inner top of the processing barrel.

[0008] Preferably, the front and rear processing mechanisms include a gas diversion ring seat, a gas diversion ring seat is provided on the upper middle part of the outer wall of the processing barrel, an air pump is provided on one side of the middle part of the top of the base, and the exhaust end of the air pump is connected to the interior of the gas diversion ring seat through a connecting pipe.

[0009] Preferably, the front and rear processing mechanisms also include a dispersion ring seat, a dispersion ring seat is provided inside the middle processing chamber, the interior of the dispersion ring seat is connected to the interior of the gas diversion ring seat through multiple internal flow channels inside the processing barrel, the interior of the gas diversion ring seat is equidistantly fixedly connected with multiple mounting rods, and the mounting rods are all provided with heating wires. The inner wall of the dispersion ring seat is provided with multiple inclined rows of holes in a circular array in the middle and lower parts, and the heated gas is discharged to the surface of the weld pipe through the inclined rows of holes at various positions, thereby preheating the weld pipe surface or drying the residual liquid.

[0010] Preferably, the automatic grinding mechanism includes a silicone oil mixture, the interior of the lower processing chamber is provided with the silicone oil mixture, carbonyl iron particles are dispersed inside the silicone oil mixture, and a coolant jacket is provided at the lower middle part of the outer wall of the processing barrel, and the coolant jacket is used to cool the mixed liquid in the lower processing chamber to prevent performance degradation caused by frictional heat during the grinding process.

[0011] Preferably, the automatic grinding mechanism also includes a base, a base is provided in the middle of the top of the base, the upper and middle part of the inner wall of the base is connected to the bottom of the outer wall of the processing barrel, the middle part of the inner bottom end of the base is rotatably connected to a rotating seat, a driving motor is provided in the middle of the bottom end of the base, and the output end of the driving motor passes through the base and is connected to the middle part of the rotating seat, a plurality of electromagnetic coils are provided inside the rotating seat, the electromagnetic coils are connected in series through an annular conductive magnet, and the magnetic field strength formed by the output of the electromagnetic coil and the annular conductive magnet is adjusted by the corresponding current and voltage regulator.

[0012] Preferably, the auxiliary elimination mechanism includes an intermittent air seat, and an intermittent air seat is provided inside the inclined row of holes. The middle parts of both ends of the intermittent air seat are fixedly connected with a rotating shaft, and the two ends of the rotating shaft extend to the inner wall of the inclined row of holes respectively, and a sealing damping strip is provided on the outer wall edge of the intermittent air seat.

[0013] Preferably, the auxiliary elimination mechanism also includes a matching plug, and the middle processing chamber is connected to the interior of the lower processing chamber through a plurality of matching plugs of different shapes and specifications. The interior of the middle processing chamber is provided with a plurality of elastic sheets around each matching plug, and a counterweight ball is provided in the middle and upper part of the elastic sheet.

[0014] Preferably, it also includes a support seat, which is fixedly connected to the support seat at all four sides of the top of the base, and a hydraulic cylinder is provided at the top of the support seat. The top of the hydraulic cylinder rod is respectively connected to the four corners of the bottom end of the top seat, and the controller is provided on the middle side of the front end of the base.

[0015] Working principle: When grinding the welds on the welded pipes caused by welding, the staff controls the hydraulic cylinder on the support seat to start through the controller on the base. When the hydraulic cylinder is started, the rod on it is pushed out. When the rod on the hydraulic cylinder is pushed out, the top seat on the upper part of the base is moved up synchronously. After the top seat is moved up, the top of the processing barrel is opened to facilitate the subsequent welding pipe processing work. When processing the welds on the welded pipes, the welding pipe processing mechanism is started first, and the staff matches the welding pipes of various specifications and shapes with the matching sockets on the processing barrel. Then, after the matching is completed, the staff inserts the bottom end of the welding pipe into the corresponding matching socket, and at the same time, the top end of the welding pipe is adsorbed and fixed by the electromagnet seat on the top seat. After that, the staff controls the hydraulic cylinder on the support seat to start through the controller on the base. When the hydraulic cylinder is started, the rod on it contracts, and the rod on the hydraulic cylinder When the body contracts, it drives the top seat and the electromagnet seat thereon to move downward synchronously. When the electromagnet seat moves downward, it drives the weld pipe adsorbed and fixed at its bottom to move downward synchronously. At the same time, the dilute hydrochloric acid solution in the dilute hydrochloric acid storage ring seat slowly penetrates into the sponge sleeve on the installation sleeve through the internal flow channel in the treatment barrel and the seepage flow channel on the installation sleeve, thereby ensuring that the sponge sleeve is full of dilute hydrochloric acid solution. When the weld pipe moves downward under the guidance of the electromagnet seat and is inserted into the matching socket on the treatment barrel, as the weld pipe in the matching socket continues to move downward, the outer wall of the weld pipe rubs against the steel wire friction layer on the installation sleeve, and at the same time, the dilute hydrochloric acid solution in the sponge sleeve is squeezed out and coated on the outer wall of the weld pipe. The friction generated by the steel wire friction layer and the dissolving effect generated by the sponge sleeve cooperate with each other to remove the oil and oxide layer on the surface of the weld pipe, thereby ensuring effective contact between the abrasive particles and the weld surface in the subsequent automatic grinding process, thereby completing the surface treatment of the weld pipe.Then the front and rear processing mechanisms are started. Before the weld on the welded pipe is ground, the welded pipe surface is processed by the welded pipe processing mechanism. As the staff controls the hydraulic cylinder rod to continuously reset through the controller, the bottom end of the welded pipe is gradually inserted into the interior of the processing barrel. As the welded pipe is continuously inserted, the air pump on the base is started. The air pump injects high-pressure gas into the interior of the gas diversion ring seat through the connecting pipe. Then, as the high-pressure gas in the gas diversion ring seat is continuously injected, the gas in the gas diversion ring seat enters the dispersion ring seat in the middle processing chamber. At the same time, the heating wire on the heating wire is energized and starts to generate heat, thereby heating the high-pressure gas entering the dispersion ring seat. The heated gas is then discharged through the inclined discharge holes. It is sprayed on the surface of the welded pipe. On the one hand, it preheats the welded pipe before the automatic grinding process. On the other hand, it dries, removes and separates the residual dilute hydrochloric acid solution and precipitated impurities on the surface of the welded pipe. After the welding seam on the welded pipe is ground, the staff controls the rod on the hydraulic cylinder through the controller to push it out. At the same time, the rod on the hydraulic cylinder drives the top seat thereon and the welded pipe fixed by the electromagnet seat to move upward synchronously. When the welded pipe moves upward and passes through the middle processing chamber, the high-pressure gas heated by the heating wire inside the dispersion ring seat is discharged to the surface of the welded pipe through the inclined discharge holes, thereby drying the grinding powder and liquid remaining on the surface of the welded pipe, thereby avoiding subsequent contamination of the welded pipe surface affecting the subsequent use of the welded pipe. Used to complete the processing of the welded pipe before and after grinding; then the automatic grinding mechanism is started, and the welded pipe after being processed by the pre- and post-processing mechanisms enters the lower processing chamber in the processing barrel, and at the same time, the weld on the welded pipe is synchronously immersed in the silicone oil mixture in the lower processing chamber, and then the annular conductive magnet and the electromagnetic coil in the rotating seat are energized and started. When the annular conductive magnet and the electromagnetic coil are energized and started, a magnetic field of corresponding strength is formed inside the lower processing chamber. Under the guidance and action of the magnetic field, the magnetic particle group composed of carbonyl iron particles in the silicone oil mixture in the lower processing chamber contacts the surface of the welded pipe, and then the driving motor at the bottom of the base is started, and the rotating shaft of the driving motor drives the rotating seat in the base to rotate synchronously while rotating, and the rotating seat rotates. At the same time, the magnetic particle group in the lower processing chamber is synchronously driven to rotate synchronously. The magnetic particle group grinds the protruding weld position on the surface of the weld pipe while rotating. Due to the vertical effect of the magnetic field and the vertical insertion contour guidance of the weld pipe, the magnetic particle group can only grind the weld pipe surface in all directions with the same depth while grinding the weld, so as to avoid the occurrence of hard area residue and soft area over-grinding. In addition, during the grinding process, the coolant jacket passes through the spiral cooling flow channel inside it, avoiding the attenuation of the grinding liquid performance caused by frictional heat generated during the grinding process. In addition, the staff can accurately adjust the intensity of the magnetic field through the current and voltage regulator to ensure the treatment effect of the weld, thereby completing the automatic grinding of the weld seam of the welded pipe;While the weld pipe is being automatically ground, the auxiliary elimination mechanism is activated. When the high-pressure gas in the dispersion ring seat is discharged through the inclined row holes, the gas flowing through the inclined row holes synchronously drives the intermittent wind seat and the rotating shaft thereon to rotate inside it, and is affected by the friction damping of the sealing damping strip on the intermittent wind seat. The gas in the inclined row holes forms an intermittent discharge effect while being discharged, so that the intermittently discharged high-pressure gas enters the interior of the middle processing chamber to process the surface of the weld pipe. Since the bottom of the processing barrel is a closed setting, the high-pressure gas in the processing chamber can only be discharged from the matching socket on the upper part of the processing barrel. When the intermittently discharged high-pressure gas enters the interior of the middle processing chamber, the intermittent high-pressure gas blows the elastic sheet in the middle processing chamber, causing the elastic sheet to change from the original bent state affected by the gravity of the counterweight ball to a vertical state. When the inclined row holes are affected by the intermittent wind seat and no high-pressure gas is discharged, the counterweight ball on the elastic sheet drives the elastic sheet to reset to its original bent state due to the influence of gravity, and at the same time The surface of the welded pipe in the matching insertion channel is impacted to generate vibration, and the above operation is repeated, so that the elastic sheet frequently impacts and vibrates the surface of the welded pipe. This vibration method can not only accelerate the rapid release of stress generated by welding in the welded pipe, but also optimize the mechanical properties of the weld, and also improve the interface adaptability between the magnetic mixed liquid in the lower processing chamber and the welded pipe surface, thereby completing the auxiliary elimination process in the welded pipe processing process; after the weld on the welded pipe is processed, the staff controls the hydraulic cylinder on the support seat through the controller on the base to start, and the hydraulic cylinder is started and the rod on it is pushed out. When the hydraulic cylinder is pushed out, the electromagnetic seat and the welded pipe adsorbed at the bottom are simultaneously discharged from the processing barrel. After that, the staff uses the controller to cut off the power of the electromagnetic seat on the top seat, so that the welded pipes that have lost adsorption and fixation at the bottom of the electromagnetic seat are collected and then the welded pipes to be processed are inserted into the matching insertion hole again and fixed by the electromagnetic seat, so as to facilitate the subsequent processing of the welded pipe.

[0016] The present invention provides an integrated automatic grinding device for welded pipe welds. It has the following beneficial effects: 1. The present invention adds and sets a welded pipe processing mechanism. Before the weld on the welded pipe is ground, the mechanism can adapt to the pretreatment requirements of welded pipes of different specifications by matching the adaptable design of the socket and the mounting sleeve. On the one hand, the steel wire friction layer can physically remove welding slag and spatter on the weld surface, avoiding the interference of hard impurities on subsequent grinding. On the other hand, the sponge sleeve combined with dilute hydrochloric acid solution can chemically dissolve the oxide layer and oil stains, ensuring the cleanliness of the weld surface. This physical and chemical synergistic treatment method not only provides a uniform contact basis for subsequent grinding, but also reduces grinding defects caused by impurities, thereby improving the overall processing quality.

[0017] 2. The present invention adds and sets a welded pipe processing mechanism. Before the weld on the welded pipe is ground, the mechanism optimizes the grinding environment through the dual effects of preheating and drying. Before grinding, the heated gas can not only preheat the weld area to reduce the impact of hardness fluctuations on grinding, but also dry the liquid remaining on the surface. After grinding, the hot air can quickly remove the grinding chips and liquid remaining on the surface to prevent the adhesion of pollutants and affect subsequent processes. This kind of full-process environmental control not only ensures the stability of the grinding process, but also lays a good foundation for the subsequent protective treatment of the weld.

[0018] 3. The present invention adds and sets an automatic grinding mechanism. When grinding the weld on the welded pipe, the mechanism uses the magnetorheological effect to achieve adaptive grinding of the weld. When grinding the weld on the welded pipe, the aggregation state of the carbonyl iron particles is first regulated by the magnetic field, and the grinding intensity can be adjusted according to the hardness difference of the weld to avoid under-grinding of the hard area and over-grinding of the soft area. Secondly, the coolant jacket can maintain a stable working environment and prevent frictional heat from affecting the grinding accuracy. When using this grinding method to grind the weld of the welded pipe, the flatness of the weld surface is guaranteed, the mechanical properties of the base material are protected, and the damage caused by excessive processing is reduced.

[0019] 4. The present invention adds and sets an auxiliary elimination mechanism. While grinding the weld on the welded pipe, the mechanism achieves multiple optimizations of stress and mechanical properties through intermittent airflow and elastic sheet vibration. This treatment method not only accelerates the release of residual stress inside the weld through high-frequency vibration, reducing the risk of cracking in subsequent use, but also optimizes the fit between the magnetic mixture and the weld surface through vibration, thereby improving the uniformity of grinding. At the same time, the vibration generated by this treatment method can also enhance the mechanical properties of the weld and extend the service life of the pipeline. This dynamic auxiliary method improves the quality of the weld from the inside out, forming an effective synergy with the grinding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the front structure of the present invention; Figure 2 It is a schematic diagram of the rear structure of the present invention; Figure 3 It is a schematic cross-sectional view of the internal structure of the treatment cylinder of the present invention; Figure 4 It is a schematic cross-sectional view of the internal structure of the mounting sleeve of the present invention; Figure 5 It is a schematic cross-sectional view of the internal structure of the dispersion ring seat of the present invention; Figure 6 This is a schematic diagram of the internal structure of the base of the present invention; Figure 7 It is a cross-sectional schematic diagram of the internal structure of the rotating seat of the present invention; Figure 8 Schematic diagram of the internal structure of the middle processing chamber of the present invention; Figure 9 It is a schematic diagram of the elastic sheet structure of the present invention; Figure 10 It is a schematic cross-sectional view of the internal structure of the inclined row of holes of the present invention.

[0021] Among them, 1. base; 2. base; 3. coolant jacket; 4. processing barrel; 5. air pump; 6. controller; 7. hydraulic cylinder; 8. matching socket; 9. electromagnet seat; 10. top seat; 11. dilute hydrochloric acid storage ring seat; 12. gas diversion ring seat; 13. support seat; 14. mounting sleeve; 15. upper processing chamber; 16. dispersion ring seat; 17. middle processing chamber; 18. lower processing chamber; 19. silicone oil mixture; 20. steel wire friction layer; 21. sponge sleeve; 22. seepage channel; 23. inclined row holes; 24. mounting rod; 25. heating wire; 26. rotating seat; 27. drive motor; 28. annular conductive magnet; 29. ​​electromagnetic coil; 30. counterweight ball; 31. elastic sheet; 32. matching socket; 33. intermittent wind seat; 34. rotating shaft; 35. sealing damping strip. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Please see the attached Figure 1 - Attachment Figure 2 The embodiment of the present invention provides an integrated processing device for automatic grinding of weld seams of welded pipes, comprising a base 1, a processing barrel 4 is provided at the middle of the top of the base 1, and the interior of the processing barrel 4 is composed of an upper processing chamber 15, a middle processing chamber 17 and a lower processing chamber 18 from top to bottom; a top seat 10 is provided at the upper part of the base 1, and an electromagnet seat 9 for auxiliary discharge of welded pipes is provided in the middle of the top seat 10; support seats 13 are fixedly connected to the top of the base 1 around the top, and hydraulic cylinders 7 are provided at the top of the support seats 13, and the top of the rod of the hydraulic cylinder 7 is respectively connected to the four corners of the bottom end of the top seat 10; a controller 6 is provided on one side of the middle part of the front end of the base 1.

[0024] Please see the attached Figure 3 - Attachment Figure 4 , a welded pipe processing mechanism, which is arranged in the upper processing chamber 15 and is used for pre-processing the front end of the welds on welded pipes of different sizes and specifications; The welded pipe processing mechanism includes a matching socket 8. The top of the processing barrel 4 is provided with multiple matching sockets 8 of different shapes and specifications. The inner wall of the matching socket 8 is provided with a mounting sleeve 14 that matches its shape and specification. The inner wall of the mounting sleeve 14 is provided with a sponge sleeve 21, and the outer wall of the sponge sleeve 21 is covered with a steel wire friction layer 20.

[0025] When the welded pipe processing mechanism is started, the staff will match welded pipes of various specifications and shapes with the matching sockets 8 on the processing barrel 4. Then, after the matching is completed, the staff will insert the bottom end of the welded pipe into the corresponding matching socket 8, and at the same time, the top end of the welded pipe will be adsorbed and fixed by the electromagnet seat 9 on the top seat 10. After that, the staff will control the hydraulic cylinder 7 on the support seat 13 through the controller 6 on the base 1 to start. When the hydraulic cylinder 7 is started, the rod body on it will shrink. When the rod body on the hydraulic cylinder 7 shrinks, it drives the top seat 10 and the electromagnet seat 9 on it to move downward synchronously. When the electromagnet seat 9 moves downward, it also drives the welded pipe adsorbed and fixed at its bottom to move downward synchronously.

[0026] The welded pipe processing mechanism also includes a dilute hydrochloric acid storage ring seat 11. The dilute hydrochloric acid storage ring seat 11 is provided on the top of the outer wall of the processing barrel 4. Seepage channels 22 are provided on the upper and lower sides of the middle part of the interior of the mounting sleeve 14. The interior of the dilute hydrochloric acid storage ring seat 11 is connected to the interior of the corresponding seepage channel 22 through the internal channel at the top of the inner side of the processing barrel 4.

[0027] At the same time, the dilute hydrochloric acid solution in the dilute hydrochloric acid storage ring seat 11 slowly penetrates into the sponge sleeve 21 on the mounting sleeve 14 through the internal flow channel in the processing barrel 4 and the seepage flow channel 22 on the mounting sleeve 14, thereby ensuring that the sponge sleeve 21 is filled with dilute hydrochloric acid solution. When the welding pipe is moved downward under the guidance of the electromagnet seat 9 and inserted into the matching socket 8 on the processing barrel 4, as the welding pipe in the matching socket 8 continues to move downward, the outer wall of the welding pipe and the steel wire friction layer 20 on the mounting sleeve 14 are rubbed, and the dilute hydrochloric acid solution in the sponge sleeve 21 is also squeezed out and coated on the outer wall of the welding pipe. The friction generated by the steel wire friction layer 20 and the dissolving effect generated by the sponge sleeve 21 cooperate with each other to remove the oil and oxide layer on the surface of the welding pipe, thereby ensuring effective contact between the abrasive particles and the weld surface in the subsequent automatic grinding process, thereby completing the surface treatment of the welding pipe.

[0028] Please see the attached Figure 3 and attached Figure 5 , front and rear processing mechanisms, which are arranged in the middle processing chamber 17, are used to preheat the front end of the weld seam of the front and rear welded pipes and perform drying treatment on the rear end; The front and rear processing mechanisms include a gas diversion ring seat 12, a gas diversion ring seat 12 is provided on the upper middle part of the outer wall of the processing barrel 4, an air pump 5 is provided on one side of the middle part of the top of the base 1, and the exhaust end of the air pump 5 is connected to the interior of the gas diversion ring seat 12 through a connecting pipe.

[0029] When the front and rear processing mechanisms are started, before the weld on the weld pipe is ground, after the weld pipe surface is processed by the weld pipe processing mechanism, as the staff controls the hydraulic cylinder 7 rod body through the controller 6 to continuously reset, the bottom end of the weld pipe is gradually inserted into the interior of the processing barrel 4. While the weld pipe is continuously inserted, the air pump 5 on the base 1 is started, and the air pump 5 injects high-pressure gas into the interior of the gas diversion ring seat 12 through the connecting pipe.

[0030] Then, with the continuous injection of high-pressure gas in the gas diversion ring seat 12, the gas in the gas diversion ring seat 12 enters the dispersion ring seat 16 in the middle processing chamber 17. At the same time, the heating wire 25 on the heating wire 25 is powered on and starts to generate heat, thereby heating the high-pressure gas entering the dispersion ring seat 16. The heated gas is then sprayed onto the surface of the weld pipe through the inclined row holes 23. On the one hand, the weld pipe is preheated before the automatic grinding process, and on the other hand, the dilute hydrochloric acid solution remaining on the surface of the weld pipe and the precipitated impurities are dried, removed and separated.

[0031] The front and rear processing mechanisms also include a dispersion ring seat 16. The dispersion ring seat 16 is arranged inside the middle processing chamber 17. The interior of the dispersion ring seat 16 is connected to the interior of the gas diversion ring seat 12 through multiple internal flow channels inside the processing barrel 4. The interior of the gas diversion ring seat 12 is equidistantly fixed with multiple mounting rods 24, and each mounting rod 24 is provided with a heating wire 25. The inner wall of the dispersion ring seat 16 is provided with a plurality of inclined row holes 23 in a circular array in the middle and lower part. The heated gas is discharged to the surface of the weld pipe through the inclined row holes 23 at various positions, thereby preheating the weld pipe surface or drying the residual liquid.

[0032] After the welding seam on the welding pipe is ground, as the staff controls the rod on the hydraulic cylinder 7 through the controller 6 to push out, the rod on the hydraulic cylinder 7 drives the top seat 10 thereon and the welding pipe fixed by the electromagnet seat 9 to move up synchronously. When the welding pipe moves up and passes through the middle processing chamber 17, the high-pressure gas heated by the heating wire 25 inside the dispersion ring seat 16 is discharged to the surface of the welding pipe through the inclined discharge hole 23, thereby drying the grinding powder and liquid remaining on the surface of the welding pipe, thereby avoiding subsequent contamination of the welding pipe surface affecting the subsequent use of the welding pipe, thereby completing the processing of the welding pipe before and after grinding.

[0033] Please see the attached Figure 6 - Attachment Figure 7, an automatic grinding mechanism, which is arranged in the lower processing chamber 18 and is used to automatically grind the weld on the welded pipe; The automatic grinding mechanism includes a silicone oil mixture 19, the interior of the lower processing chamber 18 is provided with the silicone oil mixture 19, and carbonyl iron particles are dispersed inside the silicone oil mixture 19. A coolant jacket 3 is provided at the lower middle part of the outer wall of the processing barrel 4. The coolant jacket 3 is used to cool the mixed liquid in the lower processing chamber 18 to prevent performance degradation caused by frictional heat during the grinding process.

[0034] When the automatic grinding mechanism is started, the welded pipe after being processed by the front and rear processing mechanisms enters the lower processing chamber 18 in the processing barrel 4, and at the same time, the weld on the welded pipe is simultaneously immersed in the silicone oil mixture 19 in the lower processing chamber 18. Then, the annular conductive magnet 28 and the electromagnetic coil 29 in the rotating seat 26 are energized and started. When the annular conductive magnet 28 and the electromagnetic coil 29 are energized and started, a magnetic field of corresponding strength is formed inside the lower processing chamber 18. Under the guidance and action of the magnetic field, the magnetic particle cluster composed of carbonyl iron particles in the silicone oil mixture 19 in the lower processing chamber 18 contacts the surface of the welded pipe.

[0035] The automatic grinding mechanism also includes a base 2. The base 2 is provided in the middle of the top of the base 1. The middle and upper part of the inner wall of the base 2 is connected to the bottom of the outer wall of the processing barrel 4. The middle part of the inner bottom end of the base 2 is rotatably connected to the rotating seat 26. A driving motor 27 is provided in the middle of the bottom end of the base 2, and the output end of the driving motor 27 passes through the base 2 and is connected to the middle of the rotating seat 26. A plurality of electromagnetic coils 29 are provided inside the rotating seat 26. The electromagnetic coils 29 are connected in series through the annular conductive magnet 28. The magnetic field strength formed by the output of the electromagnetic coil 29 and the annular conductive magnet 28 is adjusted by the corresponding current and voltage regulator.

[0036] Then the drive motor 27 at the bottom of the base 2 is started, and the rotating shaft of the drive motor 27 drives the rotating seat 26 in the base 2 to rotate synchronously while rotating. The rotating seat 26 drives the magnetic particle group in the lower processing chamber 18 to rotate synchronously while rotating. The magnetic particle group grinds the protruding weld position on the surface of the weld pipe while rotating. Due to the vertical effect of the magnetic field and the vertical insertion profile guidance of the weld pipe, the weld pipe surface can only be fully ground at the same depth while the magnetic particle group is grinding the weld, so that the hard area will not remain and the soft area will not be over-grinded. At the same time, the coolant jacket 3 avoids the attenuation of the grinding liquid performance caused by frictional heat generated during the grinding process through the spiral cooling flow channel therein. The staff can accurately adjust the strength of the magnetic field through the current and voltage regulator to ensure the treatment effect on the weld, thereby completing the automatic grinding of the weld of the welded pipe.

[0037] Please see the attached Figure 8 - Attachment Figure 10 , an auxiliary elimination mechanism, which is arranged in the middle processing chamber 17, is used to perform auxiliary elimination processing on the welded pipe during the processing.

[0038] The auxiliary elimination mechanism includes an intermittent air seat 33, and an intermittent air seat 33 is provided inside the inclined row of holes 23. The middle parts of both ends of the intermittent air seat 33 are fixedly connected to a rotating shaft 34, and the two ends of the rotating shaft 34 extend to the inner wall of the inclined row of holes 23 respectively. A sealing damping strip 35 is provided on the outer wall edge of the intermittent air seat 33.

[0039] When the auxiliary elimination mechanism is started, when the high-pressure gas in the dispersion ring seat 16 is discharged through the inclined row holes 23, the gas flowing through the inclined row holes 23 synchronously drives the intermittent wind seat 33 and the rotating shaft 34 thereon to rotate inside it, and is affected by the friction damping of the sealing damping strip 35 on the intermittent wind seat 33. The gas in the inclined row holes 23 forms an intermittent discharge effect while being discharged, so that this intermittently discharged high-pressure gas enters the interior of the middle processing chamber 17 to process the surface of the welded pipe.

[0040] The auxiliary elimination mechanism also includes a matching channel 32. The middle processing chamber 17 is connected to the interior of the lower processing chamber 18 through multiple matching channels 32 of different shapes and specifications. The interior of the middle processing chamber 17 is provided with multiple elastic sheets 31 along the periphery of each matching channel 32, and a counterweight ball 30 is provided in the middle and upper part of the elastic sheet 31.

[0041] Since the bottom of the processing barrel 4 is closed, the high-pressure gas in the processing chamber 17 can only be discharged from the matching socket 8 on the upper part of the processing barrel 4. When the intermittently discharged high-pressure gas enters the interior of the middle processing chamber 17, the intermittent high-pressure gas blows the elastic sheet 31 in the middle processing chamber 17, causing the elastic sheet 31 to change from the original curved state affected by the gravity of the counterweight ball 30 to a vertical state.

[0042] When the inclined row hole 23 is affected by the intermittent wind seat 33 and no high-pressure gas is discharged, the counterweight ball 30 on the elastic sheet 31 drives the elastic sheet 31 to reset to its original bent state due to the influence of gravity, and simultaneously impacts the surface of the weld pipe in the matching insertion channel 32 to generate vibration. The above operation is repeated, so that the elastic sheet 31 frequently impacts and vibrates the surface of the weld pipe. This vibration method can not only accelerate the rapid release of stress generated by welding in the weld pipe, but also optimize the mechanical properties of the weld, and also improve the interface adaptability between the magnetic mixed liquid in the lower processing chamber 18 and the weld pipe surface, thereby completing the auxiliary elimination treatment during the weld pipe processing process.

[0043] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An integrated automatic grinding device for welded pipe welds, characterized in that: include A base (1), wherein a processing barrel (4) is provided at the middle of the top of the base (1), and the interior of the processing barrel (4) is composed of an upper processing chamber (15), a middle processing chamber (17), and a lower processing chamber (18) from top to bottom; A top seat (10) is provided on the upper portion of the base (1), and an electromagnet seat (9) for assisting the discharge of the welded pipe is provided in the middle portion of the top seat (10); A welded pipe processing mechanism, which is arranged in the upper processing chamber (15) and is used for pre-processing the front end of welds on welded pipes of different sizes and specifications; A front and rear processing mechanism is provided in the middle processing chamber (17) and is used for preheating the front end and drying the rear end of the weld seam of the front and rear welded pipes; An automatic grinding mechanism, which is arranged in the lower processing chamber (18) and is used for automatically grinding the weld on the welded pipe; The auxiliary elimination mechanism is arranged in the middle processing chamber (17) and is used for performing auxiliary elimination processing on the welded pipe during the processing.

2. The automatic grinding and integrated processing device for welded pipe welds according to claim 1 is characterized in that: The welded pipe processing mechanism comprises a matching socket (8), a plurality of matching sockets (8) of different shapes and specifications are provided on the top of the processing barrel (4), a mounting sleeve (14) of matching shape and specification is provided on the inner wall of each matching socket (8), a sponge sleeve (21) is provided on the inner wall of each mounting sleeve (14), and a steel wire friction layer (20) is provided on the outer wall of each sponge sleeve (21).

3. The automatic grinding and integrated processing device for welded pipe welds according to claim 2 is characterized in that: The welded pipe processing mechanism further comprises a dilute hydrochloric acid storage ring seat (11), the top of the outer wall of the processing barrel (4) is provided with a dilute hydrochloric acid storage ring seat (11), and the middle and upper sides of the interior of the mounting sleeve (14) are both provided with seepage flow channels (22), and the interior of the dilute hydrochloric acid storage ring seat (11) is connected to the interior of the corresponding seepage flow channel (22) through the internal flow channel at the top of the inner side of the processing barrel (4).

4. The automatic grinding and integrated processing device for welded pipe welds according to claim 1 is characterized in that: The front and rear processing mechanism includes a gas diversion ring seat (12), a gas diversion ring seat (12) is provided on the upper middle portion of the outer wall of the processing barrel (4), an air pump (5) is provided on one side of the middle portion of the top of the base (1), and the exhaust end of the air pump (5) is connected to the interior of the gas diversion ring seat (12) through a connecting pipe.

5. The automatic grinding and integrated processing device for welded pipe welds according to claim 4 is characterized in that: The front and rear processing mechanism also includes a dispersion ring seat (16), the interior of the middle processing chamber (17) is provided with a dispersion ring seat (16), the interior of the dispersion ring seat (16) is connected to the interior of the gas diversion ring seat (12) through multiple internal flow channels inside the processing barrel (4), the interior of the gas diversion ring seat (12) is equidistantly fixedly connected with multiple mounting rods (24), each of the mounting rods (24) is provided with a heating wire (25), and the inner wall of the dispersion ring seat (16) is provided with multiple inclined row holes (23) in a circumferential array in the middle and lower parts. The heated gas is discharged to the surface of the weld pipe through the inclined row holes (23) at various positions, so as to preheat the surface of the weld pipe or dry the residual liquid.

6. The automatic grinding and integrated processing device for welded pipe welds according to claim 1 is characterized in that: The automatic grinding mechanism includes a silicone oil mixture (19), the silicone oil mixture (19) is arranged inside the lower processing chamber (18), carbonyl iron particles are dispersed inside the silicone oil mixture (19), and a coolant jacket (3) is provided at the lower middle portion of the outer wall of the processing barrel (4), and the coolant jacket (3) is used to cool the mixed liquid in the lower processing chamber (18) to prevent performance degradation caused by frictional heat during the grinding process.

7. The automatic grinding and integrated processing device for welded pipe welds according to claim 6, characterized in that: The automatic grinding mechanism further comprises a base (2), wherein a base (2) is provided at the middle of the top of the base (1), the middle and upper part of the inner wall of the base (2) is connected to the bottom of the outer wall of the processing barrel (4), the middle part of the inner bottom end of the base (2) is rotatably connected to a rotating seat (26), a driving motor (27) is provided at the middle of the bottom end of the base (2), and the output end of the driving motor (27) passes through the base (2) and is connected to the middle of the rotating seat (26), a plurality of electromagnetic coils (29) are provided inside the rotating seat (26), the electromagnetic coils (29) are connected in series through an annular conductive magnet (28), and the magnetic field strength formed by the output of the electromagnetic coils (29) and the annular conductive magnet (28) is adjusted by a corresponding current and voltage regulator.

8. The automatic grinding and integrated processing device for welded pipe welds according to claim 5, characterized in that: The auxiliary elimination mechanism comprises an intermittent air seat (33), each of the inclined row holes (23) is provided with an intermittent air seat (33), the middle of both ends of the intermittent air seat (33) is fixedly connected to a rotating shaft (34), the two ends of the rotating shaft (34) respectively extend into the inner wall of the inclined row hole (23), and the outer wall edge of the intermittent air seat (33) is provided with a sealing damping strip (35).

9. The automatic grinding and integrated processing device for welded pipe welds according to claim 8, characterized in that: The auxiliary elimination mechanism further comprises a matching insertion channel (32), the middle processing chamber (17) is connected to the interior of the lower processing chamber (18) via a plurality of matching insertion channels (32) of different shapes and specifications, a plurality of elastic sheets (31) are provided inside the middle processing chamber (17) along the periphery of each matching insertion channel (32), and a counterweight ball (30) is provided in the middle and upper part of the elastic sheet (31).

10. The automatic grinding and integrated processing device for welded pipe welds according to claim 1, characterized in that: It also includes a support seat (13), which is fixedly connected to the support seat (13) at all four sides of the top of the base (1), and a hydraulic cylinder (7) is provided at the top of the support seat (13). The top of the rod of the hydraulic cylinder (7) is respectively connected to the four corners of the bottom of the top seat (10), and a controller (6) is provided on one side of the middle part of the front end of the base (1).

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