Stainless steel laser welding seam leveling and polishing equipment

Abstract

The invention relates to the technical field of polishing equipment, and provides stainless steel laser welding seam leveling and polishing equipment which comprises a base, a fixing plate is fixedly connected to one end of the top of the base, a rotating sleeve is rotatably connected to the top end of the fixing plate, two air cylinders are fixedly connected to the outer side of the rotating sleeve, and clamping plates are fixedly connected to the output ends of the two air cylinders. A driving mechanism is arranged on the outer side of the fixing plate, a polishing mechanism is arranged at the other end of the top of the base and comprises a supporting frame, a transverse frame is fixedly connected to the top end of the supporting frame, a linear guide rail is fixedly connected to one side of the transverse frame, and a moving frame is slidably connected to the linear guide rail; the moving frame is provided with a translation assembly used for driving the moving frame to intermittently slide, and one end of the moving frame is provided with a grinding piece matched with starting of the translation assembly to grind the outer wall of the stainless steel pipe. Comprehensive polishing of the stainless steel pipe is achieved, the position of the stainless steel pipe can be adjusted without shutdown, and the polishing efficiency of the stainless steel pipe is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of polishing equipment, and in particular to a stainless steel laser weld seam leveling and polishing equipment. Background Art

[0002] Stainless steel welded pipes are superior to stainless steel seamless pipes in terms of material and mechanical properties, but the problem of internal and external weld height of stainless steel welded pipes, especially the internal weld height, has not been well solved. In order to meet the specification requirements of various industries for welded steel pipes, especially the requirements for weld flatness, the welded pipe needs to be subjected to a weld leveling process after the welding of the welding base material. Traditionally, the internal and external burrs are removed by installing the deburring knife on the internal and external burring knife rods to scrape the inner and outer walls of the steel pipe, while the weld on the outer wall of the welded pipe is processed by polishing.

[0003] After searching, the Chinese patent publication number CN108127499A disclosed "a new type of stainless steel laser welding weld leveling and polishing equipment, including a base, a bottom inner wall of the base is provided with a movable frame slide groove, and the inner wall of the movable frame slide groove is slidably connected to the movable frame, a first hydraulic cylinder is fixed to the outer wall of one side of the movable frame by screws, and the piston rod of the first hydraulic cylinder is fixed to the outer wall of one side of the movable frame by screws, one side of the bottom inner wall of the base is fixed to the frame by screws, and the bottom outer wall of the frame and the bottom outer wall of the movable frame are both provided with pressure roller shaft mounting holes, the inner walls of the two pressure roller shaft mounting holes are both connected to the pressure roller shafts through bearings, and one side outer wall of the two pressure roller shafts are both connected to the pressure rollers through keys, a grinding wheel shaft mounting hole is provided on one side of the top outer wall of the frame, and the inner wall of the grinding wheel shaft mounting hole is connected to the grinding wheel shaft through a bearing, and one side outer wall of the grinding wheel shaft is connected to the grinding wheel through a key."

[0004] However, in the process of implementing relevant technologies, this type of patent has certain technical defects: This patent forms pressure between multiple pressure wheels and grinding wheels to fix the steel pipe. However, since the grinding range of each grinding wheel on the steel pipe is limited, the grinding position of the steel pipe needs to be adjusted frequently during grinding, which greatly reduces the grinding efficiency of the steel pipe. During the grinding process, the outer wall of the steel pipe becomes thinner after grinding, which creates a gap between the grinding wheel and the outer wall of the steel pipe, making it impossible for the grinding wheel to continue to contact the outer wall of the steel pipe. This makes it impossible for the grinding wheel to thoroughly polish the outer wall of the steel pipe, thereby affecting the overall polishing effect. In view of this, the present invention proposes a stainless steel laser welding weld leveling and polishing device. Summary of the invention

[0005] The invention provides a stainless steel laser welding seam leveling and polishing device, which solves the problem in the prior art that the grinding range is small and the position of the steel pipe needs to be adjusted frequently.

[0006] The technical solution of the present invention is as follows: a stainless steel laser welding weld leveling and polishing equipment comprises a base, one end of the top of the base is fixedly connected to a fixed plate, the top of the fixed plate is rotatably connected to a rotating sleeve that penetrates the fixed plate, the outer side of the rotating sleeve is fixedly connected to two cylinders symmetrically distributed along the center line of the rotating sleeve, the output ends of the two cylinders are fixedly connected to a clamping plate for fixing the stainless steel pipe, the outer side of the fixed plate is provided with a driving mechanism for driving the rotating sleeve to rotate, and the other end of the top of the base is provided with a polishing mechanism, the polishing mechanism comprises a support frame fixedly connected to the top of the base, the top of the support frame is fixedly connected to a cross frame, one side of the cross frame is fixedly connected to a linear guide rail, a moving frame is slidably connected to the linear guide rail, the moving frame is provided with a translation assembly for driving the moving frame to slide intermittently, and one end of the moving frame is provided with a polishing piece for polishing the outer wall of the stainless steel pipe by cooperating with the start of the translation assembly.

[0007] Preferably, the polishing mechanism also includes an elastic connector, one end of which is connected to the support frame, the other end of which is fixedly connected to a mounting seat, one end of which is fixedly connected to a core rod, and the core rod is inserted into the inner side of the stainless steel tube and contacts the inner wall of the stainless steel tube.

[0008] Preferably, the elastic connecting member includes a sleeve, one end of the sleeve is fixedly connected to the support frame, the other end of the sleeve is slidably connected to a sleeve rod, the end of the sleeve rod away from the sleeve is fixedly connected to the mounting seat, the inner side of the sleeve is slidably connected to a slider, one side of the slider is fixedly connected to the sleeve rod, the inner side of the sleeve is sleeved with a first spring, one end of the first spring is in contact with the inner wall of the sleeve, and the other end of the first spring is in contact with the slider.

[0009] Preferably, the driving mechanism includes a first motor, which is fixedly mounted on the outside of the fixed plate, an output shaft of the first motor is fixedly connected to a driving gear, one end of the rotating sleeve is fixedly connected to a gear ring, and the gear ring is meshed with the driving gear.

[0010] Preferably, the translation assembly includes a traveling gear, which is rotatably connected to the inner side of the moving frame, a toothed plate is fixedly connected to the top of the cross frame, the traveling gear is meshed with the toothed plate, a second motor is fixedly installed on the top of the moving frame, and the output shaft of the second motor is provided with a transmission member that drives the traveling gear to rotate by cooperating with the starting of the second motor.

[0011] Preferably, the transmission member includes a rotating seat coaxially fixedly connected to the traveling gear, a plurality of docking grooves are provided on the outer side of the rotating seat, and the plurality of docking grooves are distributed at equal angles around the rotating seat, one end of the movable frame is rotatably connected to an incomplete rotating wheel, the top of the incomplete rotating wheel is fixedly connected to a connecting plate, and one end of the connecting plate is fixedly connected to a docking block that slides with one of the docking grooves by cooperating with the rotation of the incomplete rotating wheel.

[0012] Preferably, the top end of the incomplete rotating wheel is coaxially fixedly connected with a first pulley, the output shaft of the second motor is fixedly connected with a second pulley, and the second pulley is connected to the first pulley through a belt drive.

[0013] Preferably, the grinding part includes a sliding seat, the sliding seat is slidably connected to one end of the moving frame, one end of the sliding seat is rotatably connected to the first bevel gear, the other end of the sliding seat is rotatably connected to a rotating shaft that penetrates the sliding seat, the bottom end of the rotating shaft is fixedly connected to a grinding wheel, the grinding wheel contacts the outer wall of the stainless steel pipe, the top end of the rotating shaft is fixedly connected to the second bevel gear, the second bevel gear meshes with the first bevel gear, one end of the moving frame is rotatably connected to a telescopic shaft, one end of the telescopic shaft is fixedly connected to the first bevel gear, the other end of the telescopic shaft is fixedly connected to the third bevel gear, and the output shaft of the second motor is fixedly connected to a fourth bevel gear that meshes with the third bevel gear.

[0014] Preferably, the telescopic shaft includes a sleeve shaft, one end of the sleeve shaft is rotatably connected to the movable frame, the other end of the sleeve shaft is slidably connected to a plug shaft, the end of the plug shaft away from the sleeve shaft is fixedly connected to the first bevel gear, the outer side of the plug shaft is fixedly connected to a limit bar, the limit bar is slidably connected to the inner wall of the sleeve shaft, a second spring is arranged on the inner side of the sleeve shaft, one end of the second spring is welded to the inner wall of the sleeve shaft, and the other end of the second spring is welded to the plug shaft.

[0015] Preferably, a limiting groove is provided on the inner side of the sleeve shaft, and the limiting strip is slidably connected to the inner wall of the limiting groove.

[0016] The working principle and beneficial effects of the present invention are as follows: by inserting one end of the stainless steel tube into the rotating sleeve, and then controlling the two cylinders so that the two clamps move toward each other and contact the stainless steel tube to clamp and fix the stainless steel tube, while the other end of the stainless steel tube contacts the grinding piece, and then starting the translation assembly to drive the movable frame to slide intermittently along the linear guide rail, so that the grinding piece grinds the outer wall of the stainless steel tube, which enables the grinding piece to grind different axial positions of the stainless steel tube, and at the same time the driving mechanism drives the rotating sleeve to rotate, so that the clamp drives the stainless steel tube to rotate, and also causes the stainless steel tube and the grinding piece to rotate relative to each other, so that the grinding piece grinds different circumferential positions of the stainless steel tube, thus greatly improving the grinding range of the grinding piece to achieve comprehensive grinding of the stainless steel tube, without the need to stop the machine to adjust the position of the stainless steel tube, and greatly improving the grinding efficiency of the stainless steel tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] Figure 1 It is a structural schematic diagram of a stainless steel laser welding seam leveling and polishing device of the present invention; Figure 2 It is a structural schematic diagram of the polishing mechanism of the present invention; Figure 3 It is a schematic structural diagram of the elastic connecting member of the present invention; Figure 4 It is a structural schematic diagram of the driving mechanism of the present invention; Figure 5 It is a schematic structural diagram of the translation assembly of the present invention; Figure 6 It is a structural schematic diagram of the transmission member of the present invention; Figure 7 It is a schematic structural diagram of the grinding piece of the present invention; Figure 8 It is a schematic structural diagram of the telescopic shaft of the present invention.

[0019] In the figure: 1, base; 2, fixed plate; 3, rotating sleeve; 4, cylinder; 5, clamping plate; 6, driving mechanism; 61, first motor; 62, driving gear; 63, gear ring; 7, polishing mechanism; 71, support frame; 72, cross frame; 73, linear guide rail; 74, moving frame; 75, translation assembly; 751, walking gear; 752, tooth plate; 753, second motor; 754, transmission member; 7541, rotating seat; 7542, docking groove; 7543, incomplete rotating wheel; 7544, connecting plate; 7545, docking block; 7546, first pulley ;7547, second pulley;76, elastic connecting piece;761, sleeve;762, sleeve rod;763, slider;764, first spring;77, mounting seat;78, core rod;79, grinding piece;791, sliding seat;792, first bevel gear;793, rotating shaft;794, second bevel gear;795, grinding wheel;796, telescopic shaft;7961, sleeve shaft;7962, plug shaft;7963, limit strip;7964, second spring;7965, limit groove;797, third bevel gear;798, fourth bevel gear;8, stainless steel pipe. DETAILED DESCRIPTION

[0020] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments 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 creative work are within the scope of protection of the present invention.

[0021] like Figure 1 to Figure 8 As shown, this embodiment proposes a stainless steel laser welding seam leveling and polishing device, including a base 1, one end of the top of the base 1 is fixedly connected to a fixed plate 2, the top of the fixed plate 2 is rotatably connected to a rotating sleeve 3 that penetrates the fixed plate 2, the outer side of the rotating sleeve 3 is fixedly connected to two cylinders 4 symmetrically distributed along the center line of the rotating sleeve 3, the output ends of the two cylinders 4 are fixedly connected to a clamping plate 5 for fixing the stainless steel pipe 8, the outer side of the fixed plate 2 is provided with a driving mechanism 6 for driving the rotating sleeve 3 to rotate, and the other end of the top of the base 1 is provided with a polishing mechanism 7, the polishing mechanism 7 includes a support frame 71 fixedly connected to the top of the base 1, the top of the support frame 71 is fixedly connected to a cross frame 72, one side of the cross frame 72 is fixedly connected to a linear guide rail 73, a moving frame 74 is slidably connected to the linear guide rail 73, the moving frame 74 is provided with a translation assembly 75 for driving the moving frame 74 to slide intermittently, and one end of the moving frame 74 is provided with a polishing piece 79 for polishing the outer wall of the stainless steel pipe 8 by cooperating with the start of the translation assembly 75.

[0022] By inserting one end of the stainless steel tube 8 into the rotating sleeve 3, and then controlling the two cylinders 4 so that the two clamps 5 move toward each other and contact the stainless steel tube 8 to clamp and fix the stainless steel tube 8, and at the same time the other end of the stainless steel tube 8 contacts the grinding piece 79, and then starting the translation assembly 75 to drive the movable frame 74 to slide intermittently along the linear guide rail 73, so that the grinding piece 79 grinds the outer wall of the stainless steel tube 8, which makes the grinding piece 79 grind the stainless steel tube 8 at different axial positions. At the same time, the driving mechanism 6 drives the rotating sleeve 3 to rotate, so that the clamp 5 drives the stainless steel tube 8 to rotate, and the stainless steel tube 8 and the grinding piece 79 rotate relative to each other, so that the grinding piece 79 grinds the stainless steel tube 8 at different circumferential positions, which greatly improves the grinding range of the grinding piece 79 to achieve comprehensive grinding of the stainless steel tube 8, without stopping the machine to adjust the position of the stainless steel tube 8, thereby greatly improving the grinding efficiency of the stainless steel tube 8.

[0023] Furthermore, the polishing mechanism 7 also includes an elastic connecting member 76, one end of which is connected to the support frame 71, and the other end of the elastic connecting member 76 is fixedly connected to the mounting seat 77. The elastic connecting member 76 includes a sleeve 761, one end of the sleeve 761 is fixedly connected to the support frame 71, and the other end of the sleeve 761 is slidably connected to a sleeve rod 762, and the end of the sleeve rod 762 away from the sleeve 761 is fixedly connected to the mounting seat 77, and the inner side of the sleeve 761 is slidably connected to a slider 763, one side of the slider 763 is fixedly connected to the sleeve rod 762, and the inner side of the sleeve 761 is sleeved with a first spring 764, one end of the first spring 764 is in contact with the inner wall of the sleeve 761, and the other end of the first spring 764 is in contact with the slider 763. One end of the mounting seat 77 is fixedly connected to a core rod 78, and the core rod 78 is inserted into the inner side of the stainless steel pipe 8 and in contact with the inner wall of the stainless steel pipe 8.

[0024] The rotating sleeve 3 is driven to rotate by the driving mechanism 6, so that the stainless steel tube 8 and the grinding piece 79 rotate relative to each other, which makes the core rod 78 grind the inner wall of the stainless steel tube 8. At the same time, the first spring 764 can apply elastic force to the slider 763, so that the slider 763 applies an outward thrust to the sleeve rod 762, which makes the sleeve rod 762 apply a thrust to the mounting seat 77, so that the core rod 78 always contacts the inner wall of the stainless steel tube 8. In this way, it can be ensured that the core rod 78 continuously grinds the inner wall of the stainless steel tube 8, thereby greatly improving the grinding efficiency of the inner wall of the stainless steel tube 8.

[0025] Furthermore, the driving mechanism 6 includes a first motor 61, which is fixedly mounted on the outer side of the fixed plate 2, and the output shaft of the first motor 61 is fixedly connected to a driving gear 62, and one end of the rotating sleeve 3 is fixedly connected to a ring gear 63, which meshes with the driving gear 62. By starting the first motor 61 to rotate the driving gear 62, the ring gear 63 is synchronously rotated, and the rotating sleeve 3 is rotated.

[0026] Furthermore, the translation assembly 75 includes a travel gear 751, which is rotatably connected to the inner side of the mobile frame 74, and a tooth plate 752 is fixedly connected to the top of the cross frame 72. The travel gear 751 meshes with the tooth plate 752. A second motor 753 is fixedly installed on the top of the mobile frame 74. The output shaft of the second motor 753 is provided with a transmission member 754 that drives the travel gear 751 to rotate by cooperating with the start of the second motor 753. The transmission member 754 includes a rotating seat 7541 that is coaxially fixedly connected to the travel gear 751, and a plurality of docking grooves 7542 are provided on the outer side of the rotating seat 7541. The grooves 7542 are distributed at equal angles around the rotating seat 7541, one end of the movable frame 74 is rotatably connected to an incomplete rotating wheel 7543, the top of the incomplete rotating wheel 7543 is fixedly connected to a connecting plate 7544, one end of the connecting plate 7544 is fixedly connected to a docking block 7545 that slides with one of the docking grooves 7542 by cooperating with the rotation of the incomplete rotating wheel 7543, the top of the incomplete rotating wheel 7543 is coaxially fixedly connected to a first pulley 7546, the output shaft of the second motor 753 is fixedly connected to a second pulley 7547, and the second pulley 7547 is connected to the first pulley 7546 through a belt drive.

[0027] By starting the second motor 753 to drive the second pulley 7547 to rotate, the first pulley 7546 rotates synchronously, which also causes the incomplete rotating wheel 7543 to rotate, so that the connecting plate 7544 drives the docking block 7545 to rotate circumferentially. When the docking block 7545 slides with one of the docking grooves 7542, the rotating seat 7541 rotates synchronously. When the docking block 7545 is disengaged from the docking groove 7542, the rotating seat 7541 stops rotating. When the docking block 7545 slides with the next docking groove 7542, the rotating seat 7541 will rotate again. In this cycle, the rotating seat 7541 can rotate intermittently, which makes the traveling gear 751 rotate intermittently, so that the traveling gear 751 rolls intermittently along the tooth plate 752, and then the moving frame 74 slides intermittently along the linear guide rail 73, so that the grinding piece 79 grinds the outer wall of the stainless steel pipe 8, which makes the grinding piece 79 grind the stainless steel pipe 8 at different axial positions.

[0028] Furthermore, the grinding member 79 includes a sliding seat 791, which is slidably connected to one end of the moving frame 74, one end of the sliding seat 791 is rotatably connected to the first bevel gear 792, the other end of the sliding seat 791 is rotatably connected to a rotating shaft 793 that passes through the sliding seat 791, the bottom end of the rotating shaft 793 is fixedly connected to a grinding wheel 795, the grinding wheel 795 is in contact with the outer wall of the stainless steel pipe 8, the top end of the rotating shaft 793 is fixedly connected to a second bevel gear 794, the second bevel gear 794 is meshed with the first bevel gear 792, one end of the moving frame 74 is rotatably connected to a telescopic shaft 796, one end of the telescopic shaft 796 is fixedly connected to the first bevel gear 792, the other end of the telescopic shaft 796 is fixedly connected to a third bevel gear 797, and the output shaft of the second motor 753 is fixedly connected to a fourth bevel gear 798 that meshes with the third bevel gear 797.

[0029] By starting the second motor 753, the fourth bevel gear 798 rotates, the third bevel gear 797 rotates synchronously, the telescopic shaft 796 rotates synchronously, and the first bevel gear 792 rotates, so that the second bevel gear 794 rotates synchronously, and the grinding wheel 795 rotates, which makes the grinding wheel 795 grind the outer wall of the stainless steel pipe 8.

[0030] Furthermore, the telescopic shaft 796 includes a sleeve shaft 7961, one end of which is rotatably connected to the movable frame 74, and the other end of the sleeve shaft 7961 is slidably connected to the plug shaft 7962, and the end of the plug shaft 7962 away from the sleeve shaft 7961 is fixedly connected to the first bevel gear 792, and the outer side of the plug shaft 7962 is fixedly connected to the limiting strip 7963, and the limiting strip 7963 is slidably connected to the inner wall of the sleeve shaft 7961. A second spring 7964 is arranged on the inner side of the sleeve shaft 7961, one end of the second spring 7964 is welded to the inner wall of the sleeve shaft 7961, and the other end of the second spring 7964 is welded to the plug shaft 7962, and a limiting groove 7965 is provided on the inner side of the sleeve shaft 7961, and the limiting strip 7963 is slidably connected to the inner wall of the limiting groove 7965. The limiting strip 7963 can ensure that the sleeve shaft 7961 and the plug shaft 7962 always rotate synchronously, and the second spring 7964 can always apply pressure to the plug shaft 7962, so that the sliding seat 791 can fit tightly against the grinding wheel 795 and the outer wall of the stainless steel tube 8, avoiding the generation of a gap between the grinding wheel 795 and the outer wall of the stainless steel tube 8 to affect the grinding effect.

[0031] Working principle: insert one end of the stainless steel tube 8 into the rotating sleeve 3, and then control the two cylinders 4 to make the two clamps 5 move towards each other and contact with the stainless steel tube 8 to clamp and fix the stainless steel tube 8, while the other end of the stainless steel tube 8 contacts with the grinding wheel 795; Then, the second motor 753 is started to drive the second pulley 7547 to rotate, so that the first pulley 7546 rotates synchronously, which also causes the incomplete rotating wheel 7543 to rotate, so that the connecting plate 7544 drives the docking block 7545 to rotate circumferentially. When the docking block 7545 slides with one of the docking grooves 7542, the rotating seat 7541 rotates synchronously. When the docking block 7545 is disengaged from the docking groove 7542, the rotating seat 7541 stops rotating. When the docking block 7545 slides with the next docking groove 7542, the rotating seat 7541 will rotate again. In this cycle, the rotating seat 7541 can rotate intermittently, which also causes the traveling gear 751 to rotate intermittently, so that the traveling gear 751 intermittently moves along the tooth plate 752 The moving frame 74 is rolled, and then the moving frame 74 is intermittently slid along the linear guide rail 73, so that the grinding wheel 795 grinds the outer wall of the stainless steel tube 8, which makes the grinding wheel 795 grind the stainless steel tube 8 at different axial positions. At the same time, the driving gear 62 is rotated by starting the first motor 61, which makes the gear ring 63 rotate synchronously, and the rotating sleeve 3 is rotated, so that the splint 5 drives the stainless steel tube 8 to rotate, and the stainless steel tube 8 and the grinding piece 79 are rotated relative to each other, so that the grinding wheel 795 grinds the stainless steel tube 8 at different circumferential positions. This greatly improves the grinding range of the grinding wheel 795 to achieve comprehensive grinding of the stainless steel tube 8, and there is no need to stop the machine to adjust the position of the stainless steel tube 8, which greatly improves the grinding efficiency of the stainless steel tube 8.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A stainless steel laser welding seam leveling and polishing device, comprising a base (1), one end of the top of the base (1) is fixedly connected to a fixed plate (2), the top of the fixed plate (2) is rotatably connected to a rotating sleeve (3) penetrating the fixed plate (2), the outer side of the rotating sleeve (3) is fixedly connected to two cylinders (4) symmetrically distributed along the center line of the rotating sleeve (3), the output ends of the two cylinders (4) are fixedly connected to a clamping plate (5) for fixing a stainless steel pipe (8), characterized in that: A driving mechanism (6) for driving the rotating sleeve (3) to rotate is arranged on the outer side of the fixed plate (2), and a polishing mechanism (7) is arranged on the other end of the top of the base (1), wherein the polishing mechanism (7) comprises a support frame (71) fixedly connected to the top of the base (1), a cross frame (72) fixedly connected to the top of the support frame (71), a linear guide rail (73) fixedly connected to one side of the cross frame (72), a moving frame (74) slidably connected to the linear guide rail (73), a translation assembly (75) for driving the moving frame (74) to slide intermittently is arranged on the moving frame (74), and a polishing member (79) for polishing the outer wall of the stainless steel pipe (8) by cooperating with the start of the translation assembly (75) is arranged on one end of the moving frame (74).

2. The stainless steel laser welding seam leveling and polishing equipment according to claim 1 is characterized in that: The polishing mechanism (7) further comprises an elastic connecting member (76), one end of the elastic connecting member (76) being connected to the support frame (71), the other end of the elastic connecting member (76) being fixedly connected to a mounting seat (77), one end of the mounting seat (77) being fixedly connected to a core rod (78), the core rod (78) being inserted into the inner side of the stainless steel tube (8) and abutting against the inner wall of the stainless steel tube (8).

3. The stainless steel laser welding seam leveling and polishing equipment according to claim 2 is characterized in that: The elastic connecting member (76) comprises a sleeve (761), one end of the sleeve (761) is fixedly connected to the support frame (71), the other end of the sleeve (761) is slidably connected to a sleeve rod (762), one end of the sleeve rod (762) away from the sleeve (761) is fixedly connected to the mounting seat (77), the inner side of the sleeve (761) is slidably connected to a slider (763), one side of the slider (763) is fixedly connected to the sleeve rod (762), the inner side of the sleeve (761) is sleeved with a first spring (764), one end of the first spring (764) is in contact with the inner wall of the sleeve (761), and the other end of the first spring (764) is in contact with the slider (763).

4. The stainless steel laser welding seam leveling and polishing equipment according to claim 1 is characterized in that: The driving mechanism (6) comprises a first motor (61), the first motor (61) being fixedly mounted on the outside of the fixed plate (2), the output shaft of the first motor (61) being fixedly connected to a driving gear (62), one end of the rotating sleeve (3) being fixedly connected to a gear ring (63), the gear ring (63) being meshed with the driving gear (62).

5. The stainless steel laser welding seam leveling and polishing equipment according to claim 1 is characterized in that: The translation assembly (75) comprises a travel gear (751), the travel gear (751) being rotatably connected to the inner side of the moving frame (74), a toothed plate (752) being fixedly connected to the top of the cross frame (72), the travel gear (751) being meshed with the toothed plate (752), a second motor (753) being fixedly mounted on the top of the moving frame (74), and an output shaft of the second motor (753) being provided with a transmission member (754) for driving the travel gear (751) to rotate by cooperating with the start of the second motor (753).

6. The stainless steel laser welding seam leveling and polishing equipment according to claim 5 is characterized in that: The transmission member (754) comprises a rotating seat (7541) coaxially fixedly connected to the traveling gear (751); a plurality of docking grooves (7542) are provided on the outer side of the rotating seat (7541); the plurality of docking grooves (7542) are distributed at equal angles around the rotating seat (7541); an incomplete rotating wheel (7543) is rotatably connected to one end of the moving frame (74); a connecting plate (7544) is fixedly connected to the top of the incomplete rotating wheel (7543); and a docking block (7545) is fixedly connected to one end of the connecting plate (7544) and is slidably engaged with one of the docking grooves (7542) by rotating in cooperation with the incomplete rotating wheel (7543).

7. The stainless steel laser welding seam leveling and polishing equipment according to claim 6 is characterized in that: The top end of the incomplete rotating wheel (7543) is coaxially fixedly connected to a first pulley (7546), the output shaft of the second motor (753) is fixedly connected to a second pulley (7547), and the second pulley (7547) is connected to the first pulley (7546) via a belt drive.

8. The stainless steel laser welding seam leveling and polishing equipment according to claim 5 is characterized in that: The grinding member (79) comprises a sliding seat (791), wherein the sliding seat (791) is slidably connected to one end of the moving frame (74), one end of the sliding seat (791) is rotatably connected to a first bevel gear (792), the other end of the sliding seat (791) is rotatably connected to a rotating shaft (793) that passes through the sliding seat (791), the bottom end of the rotating shaft (793) is fixedly connected to a grinding wheel (795), the grinding wheel (795) is in contact with the outer wall of the stainless steel pipe (8), and the top end of the rotating shaft (793) is fixedly connected to the grinding wheel (795). The second bevel gear (794) is fixedly connected to one end of the movable frame (74), and the second bevel gear (794) is meshed with the first bevel gear (792). One end of the movable frame (74) is rotatably connected to a telescopic shaft (796), and one end of the telescopic shaft (796) is fixedly connected to the first bevel gear (792). The other end of the telescopic shaft (796) is fixedly connected to a third bevel gear (797). The output shaft of the second motor (753) is fixedly connected to a fourth bevel gear (798) meshed with the third bevel gear (797).

9. The stainless steel laser welding seam leveling and polishing equipment according to claim 8, characterized in that: The telescopic shaft (796) comprises a sleeve shaft (7961), one end of the sleeve shaft (7961) is rotatably connected to the movable frame (74), the other end of the sleeve shaft (7961) is slidably connected to an insertion shaft (7962), one end of the insertion shaft (7962) away from the sleeve shaft (7961) is fixedly connected to the first bevel gear (792), the outer side of the insertion shaft (7962) is fixedly connected to a limit bar (7963), the limit bar (7963) is slidably connected to the inner wall of the sleeve shaft (7961), a second spring (7964) is arranged on the inner side of the sleeve shaft (7961), one end of the second spring (7964) is welded to the inner wall of the sleeve shaft (7961), and the other end of the second spring (7964) is welded to the insertion shaft (7962).

10. The stainless steel laser welding seam leveling and polishing equipment according to claim 9, characterized in that: A limiting groove (7965) is provided on the inner side of the sleeve shaft (7961), and the limiting strip (7963) is slidably connected to the inner wall of the limiting groove (7965).

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