A stainless steel pipe welding positioning device for automatic continuous welding

Abstract

The present invention is applicable to the technical field of welding positioning equipment, and provides a stainless steel pipe welding positioning equipment for automatic continuous welding, including a base, a mounting seat is provided on the top of the base, the mounting seat is threadedly connected to the base, the number of the mounting seats is set to two, and a fixing ring is fixedly connected to the top of the mounting seat. The present invention can simultaneously and synchronously drive multiple clamping blocks to uniformly clamp the outer periphery of the stainless steel pipe by setting a fixing mechanism, so that the stainless steel pipe can be uniformly stressed when being clamped, thereby avoiding deformation of the stainless steel pipe due to uneven stress during clamping, and the pressure relief component in the clamping block can automatically shrink the clamping block when the pressure of the clamping block squeezing the stainless steel pipe is too large, thereby avoiding damage to the outer wall of the stainless steel pipe due to excessive stress, and the shrinkage rated pressure of the clamping block is adjustable, so that the device can be adapted to stainless steel pipes of different strengths to improve the scope of application of the device.

Description

Technical Field

[0001] The invention belongs to the technical field of welding positioning equipment, and in particular relates to a stainless steel pipe welding positioning equipment for automatic continuous welding. Background Art

[0002] In home life, stainless steel often refers to steel that is resistant to weak corrosive media such as air, steam, and water or has stainless properties. Stainless steel tools and kitchen utensils usually have a smooth surface, are easy to clean, have a long service life, and are not easy to deform, so they are widely used. Since stainless steel pipes have better corrosion resistance and longer service life than traditional steel pipes, they are widely used in the manufacture of mechanical parts and engineering structures. Stainless steel pipe welding positioning equipment is used to fix and position stainless steel pipes, thereby facilitating subsequent welding of stainless steel pipes.

[0003] The Chinese invention patent with publication number CN214721910U discloses a steel pipe positioning device for stainless steel pipe welding, including a lower box shell, a guide frame, a steel pipe positioning structure and a lifting structure. The lower box shell is in a rectangular box shape and has a cavity on its inner side. A guide frame is installed on the inner side of the lower box shell, and the top of the guide frame extends out of the lower box shell; the steel pipe positioning structure includes a base, a positioning plate, an adjustment plate and an adjustment screw. The base is vertically arranged on the inner side of the guide frame and can slide along the side wall of the guide frame. An arc groove adapted to the steel pipe is provided on the top of the base; the positioning plate is arranged directly above the base, and an arc positioning groove adapted to the steel pipe is also provided at the lower end of the positioning plate. Adjustment plates are connected to the left and right ends of the positioning plate. The adjustment plate is L-shaped and has a vertical adjustment groove thereon.

[0004] However, the above patent has the following shortcomings:

[0005] 1. The above patent fixes the stainless steel pipe on the top of the base by moving the positioning plate downward, thereby completing the fixing and positioning of the stainless steel pipe. However, after completing the fixing of the stainless steel pipe, the above patent cannot automatically adjust the lateral position and placement angle of the stainless steel pipe according to the needs of welding, thereby reducing the scope of application of the device;

[0006] 2. The above patent fixes the stainless steel tube on the top of the base by moving the positioning plate downward, thereby completing the fixed positioning of the stainless steel tube. However, the above patent fixes the stainless steel tube by applying force at both ends, which may cause the stainless steel tube to be deformed due to uneven force. Moreover, the above patent does not have a protective structure. Therefore, when the positioning plate is clamping and fixing stainless steel tubes of different thicknesses and strengths, it is easy to exert excessive force, thereby causing the stainless steel tube to deform. Summary of the invention

[0007] The present invention provides an automatic continuous welding stainless steel pipe welding positioning device, aiming to solve the problem that the above patent mentioned in the above background technology cannot automatically adjust the lateral position and placement angle of the stainless steel pipe according to the needs of welding after completing the fixation of the stainless steel pipe, thereby reducing the application scope of the device, and the above patent fixes the stainless steel pipe by applying force at both ends, which easily causes the stainless steel pipe to be deformed due to uneven force, and the above patent does not have a protective structure, so when the positioning plate is clamping and fixing stainless steel pipes of different thicknesses and strengths, it is easy to exert excessive force, thereby causing the stainless steel pipe to deform.

[0008] The present invention is implemented as follows: a stainless steel pipe welding positioning device for automatic continuous welding, wherein a mounting seat is provided on the top of the base, the mounting seat is threadedly connected to the base, and the number of the mounting seats is set to two;

[0009] A fixing ring is fixedly connected to the top of the mounting seat, the cross-section of the fixing ring is set to be U-shaped, and the side wall of the fixing ring is provided with a driving mechanism for conveying the stainless steel pipe;

[0010] A mounting ring is provided inside the fixing ring, the cross-section of the mounting ring is set to be U-shaped, and an angle adjustment mechanism for adjusting the angle of the stainless steel pipe is provided between the fixing ring and the mounting ring;

[0011] A fixing mechanism for fixing the stainless steel pipe is provided inside the mounting ring;

[0012] The fixing mechanism includes a clamping structure for clamping the stainless steel pipe and a protective structure for preventing the stainless steel pipe from being subjected to excessive pressure.

[0013] The clamping structure comprises a third stepping motor, a rotating ring and a first threaded rod, wherein the end of the first threaded rod is threadedly connected with a stop block;

[0014] The protective structure includes a clamping block, the number of the clamping blocks is the same as the number of the resisting blocks, the ends of the plurality of the clamping blocks are fixedly connected with sleeves, and the plurality of sleeves are respectively slidably sleeved with the plurality of resisting blocks; a receiving groove is provided inside the clamping block, a piston cylinder is connected to the side wall of the clamping block, a piston column is slidably provided inside the piston cylinder, a resisting rod is fixedly connected to the end of the piston column, and the end of the resisting rod away from the piston column is fixedly connected to the adjacent resisting block; a dividing plate is fixedly connected between the outer periphery of the piston cylinder and the receiving groove, the dividing plate is annular, and a pressure relief component is also provided on the surface of the dividing plate;

[0015] The pressure relief component comprises a pressure relief cylinder, which is arranged between the dividing plate and the containing groove, a liquid inlet groove is provided at the bottom of the pressure relief cylinder, a liquid outlet groove is provided at the top of the pressure relief cylinder, a baffle is provided between the liquid inlet groove and the liquid outlet groove, a sealing groove is provided on the surface of the baffle, a sealing plug is provided inside the sealing groove, and a pressing block is provided on one side of the sealing plug;

[0016] An extrusion spring is provided between the pressing block and the sealing plug, one end of the extrusion spring abuts against the pressing block, and the other end of the extrusion spring abuts against the sealing plug;

[0017] The piston cylinder is filled with hydraulic oil.

[0018] Preferably, the driving mechanism comprises an extension rod, one end of the extension rod is fixedly connected to a fixing ring, the other end of the extension rod is rotatably connected to a driving wheel, a side wall of the extension rod is fixedly connected to a first stepper motor, and an output end of the first stepper motor is fixedly connected to the driving wheel;

[0019] The number of the extension rods is set to be multiple, and the multiple extension rods are distributed around the center of the fixing ring;

[0020] A plurality of driving wheels can be attached to the outer circumference of the stainless steel pipe, and then the driving wheels can be driven to rotate by starting the first stepper motor, so that the stainless steel pipe can be driven to move horizontally through the driving wheels, and the stainless steel pipe can be transported.

[0021] Preferably, the angle adjustment mechanism comprises an annular guide rail, a driven gear ring and a mounting plate, the annular guide rail is provided in two groups, the two groups of annular guide rails are respectively provided on the outer peripheries of two mounting rings, the number of annular guide rails in each group is provided in two, and the inner walls of the two annular guide rails are fixedly connected to the outer walls of the adjacent mounting rings;

[0022] A plurality of guide wheels are arranged on the outer periphery of the annular guide rail, and the plurality of guide wheels are rotatably connected to the inner wall of the adjacent fixed ring, and the plurality of guide wheels are matched with the annular guide rail;

[0023] The number of the driven gear rings is set to two, and the inner peripheries of the two driven gear rings are fixedly connected to the outer peripheries of the two mounting rings respectively;

[0024] The bottom of the mounting plate is fixedly connected to the base by bolts, a second stepper motor is fixedly connected to the side wall of the mounting plate, an output shaft of the second stepper motor is fixedly connected to a rotating shaft, two fixing rings are passed through the middle of the rotating shaft, the rotating shaft is rotatably connected to the two fixing rings, two driving gears are fixedly connected to the outer periphery of the rotating shaft, and the two driving gears are respectively meshed with two driven gear rings.

[0025] The mounting ring can rotate inside the fixed ring through multiple guide wheels, and the rotating shaft can be driven to rotate by starting the second stepper motor. At the same time, the rotating shaft will drive the two driving gears to rotate at the same time. At this time, the two driving gears will respectively drive the two mounting rings and the inside of the fixed ring to rotate, so that the angles of the two mounting rings relative to the fixed ring can be adjusted at the same time, thereby adjusting the angle of the stainless steel tube.

[0026] Preferably, the side wall of the third stepper motor is fixedly connected to the side wall of the mounting ring, a protective shell is provided on the outer periphery of the third stepper motor, the protective shell is fixedly connected to the mounting ring, a driving gear is fixedly connected to the output end of the third stepper motor, a through groove is provided at the bottom of the driving gear, and the through groove penetrates the mounting ring;

[0027] The rotating ring is arranged inside the mounting ring, the rotating ring is rotatably connected to the inner wall of the mounting ring, the top of the rotating ring is fixedly connected to a first gear ring, the first gear ring is meshed with the driving gear, and the bottom of the rotating ring is fixedly connected to a second gear ring;

[0028] The first threaded rod is arranged inside the mounting ring, the end of the first threaded rod is rotatably connected to the inner wall of the mounting ring, the number of the first threaded rods is set to be multiple, and the multiple first threaded rods are distributed around the center of the mounting ring;

[0029] A driven gear is fixedly connected to the outer periphery of the first threaded rod, and the driven gear is meshed with the second gear ring. Stabilizing blocks are fixedly connected to both sides of the stop block. Slide grooves are also arranged on both sides of the stop block. Both the slide grooves penetrate the mounting ring. The two stabilizing blocks are respectively slidably connected to adjacent slide grooves. Stabilizing rods are arranged in the middle of the two stabilizing blocks.

[0030] The stabilizing rod is slidably connected to the stabilizing block, and both ends of the stabilizing rod are fixedly connected to the inner wall of the slide groove;

[0031] By starting the third stepper motor, the first gear ring and the rotating ring can be driven to rotate through the driving gear. At the same time, the rotating ring will drive multiple driven gears and the first threaded rod to rotate through the second gear ring. The block connected to the first threaded rod is limited by two stabilizing blocks and cannot rotate. Therefore, the rotation of the first threaded rod can drive the block threadedly connected to it to move along the axis of the first threaded rod. The movement direction of the block can be controlled by controlling the rotation direction of the first threaded rod. Therefore, by controlling the third stepper motor, multiple blocks can be driven to extend or retract synchronously at the same time, so that the outer wall of the stainless steel tube can be clamped. Because there are many blocks and they are distributed around the outer circumference of the stainless steel tube, the stainless steel tube is evenly stressed when clamped, thereby avoiding deformation of the stainless steel tube due to uneven stress.

[0032] Preferably, the automatic continuous welding stainless steel pipe welding positioning equipment is characterized in that: a one-way valve is provided on the surface of the dividing plate;

[0033] A piston ring is also slidably arranged between the piston cylinder and the receiving groove, and a return spring is arranged on one side of the piston ring, one end of the return spring abuts against the piston ring, and the other end of the return spring abuts against the inner wall of the receiving groove;

[0034] The clamping block is arranged at the end of the resisting block, and hydraulic oil is filled and arranged between the piston cylinder and the receiving groove. Therefore, when the resisting block applies force to drive the clamping block to resist the outer wall of the stainless steel pipe, the resisting block will drive the piston column to squeeze the hydraulic oil in the piston cylinder through the resisting rod. When the output force of the resisting block is too large, the hydraulic oil will enter the other side of the dividing plate through the pressure relief component on one side of the dividing plate, and the hydraulic pressure entering the other side of the dividing plate will squeeze the piston ring to slide between the piston cylinder and the receiving groove and squeeze and compress the reset spring. In this process, the clamping block will move and contract relative to the resisting block, thereby preventing the output force of the resisting block from being too large and driving the clamping block to squeeze the outer wall of the stainless steel pipe, thereby causing the stainless steel pipe to deform.

[0035] When the stop block contracts and drives the clamping block to separate from the outer wall of the stainless steel pipe, the return spring will rebound and drive the piston ring to return. At the same time, the piston ring will squeeze the hydraulic oil, so that the hydraulic oil will flow back from one side of the dividing plate to the other side of the dividing plate through the one-way valve.

[0036] Preferably, the end of the pressing block is rotatably connected to a second threaded rod, the second threaded rod passes through the pressure relief cylinder and the clamping block, the second threaded rod is threadedly connected to the pressure relief cylinder and the clamping block, and the end of the second threaded rod is fixedly connected to a knob;

[0037] When the pressure in the piston cylinder and the receiving groove is too large, the hydraulic oil will enter the pressure relief cylinder through the liquid inlet groove, and the hydraulic oil will push open the sealing plug, and the sealing plug will squeeze and compress the extrusion spring. At this time, the hydraulic oil will be discharged through the sealing groove and the liquid outlet groove in turn. Therefore, through the above structure, when the hydraulic oil is subjected to a large pressure, the hydraulic oil can flow from one side of the dividing plate to the other side of the dividing plate;

[0038] By rotating the second threaded rod with a knob, the distance between the clamping block and the sealing plug can be adjusted, thereby adjusting the compression length of the extrusion spring, and then adjusting the initial pressure of the extrusion spring and the sealing plug, thereby adjusting the pressure relief value of the hydraulic oil, so that the pressure relief value of the hydraulic oil can be adjusted according to the thickness and strength of the stainless steel pipe.

[0039] Compared with the prior art, the beneficial effects of the present invention are as follows: the stainless steel pipe welding positioning device for automatic continuous welding of the present invention:

[0040] 1. Through the cooperation of the driving mechanism and the angle adjustment mechanism, the lateral position of the stainless steel tube can be adjusted by driving the first stepper motor, and the second stainless steel tube can be driven to rotate by driving the second stepper motor, so that the angle of the stainless steel tube can be adjusted. Therefore, the position and angle of the stainless steel tube can be automatically adjusted through the above structure, so as to facilitate welding of different positions of the stainless steel tube.

[0041] 2. By setting up a fixing mechanism, the third stepper motor can be driven to simultaneously and synchronously drive multiple clamping blocks to evenly clamp the outer circumference of the stainless steel tube, so that the stainless steel tube can be evenly stressed when clamped, thereby avoiding deformation of the stainless steel tube due to uneven stress during clamping. The pressure relief component in the clamping block can automatically shrink the clamping block when the pressure of the clamping block squeezing the stainless steel tube is too large, thereby avoiding damage to the outer wall of the stainless steel tube due to excessive stress. The rated shrinkage pressure of the clamping block is adjustable, so that the device can be adapted to stainless steel tubes of different strengths to improve the scope of application of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0043] Figure 2 It is a schematic diagram of the angle adjustment mechanism of the present invention;

[0044] Figure 3 It is a schematic diagram of the fixing mechanism of the present invention;

[0045] Figure 4 It is a cross-sectional view of the installation ring of the present invention;

[0046] Figure 5 It is an exploded view of the protection structure of the present invention;

[0047] Figure 6 is a cross-sectional view of the protection structure of the present invention;

[0048] Figure 7 It is a cross-sectional view of the pressure relief component of the present invention.

[0049] In the figure:

[0050] 1. Base; 11. Mounting seat; 12. Fixing ring; 13. Mounting ring;

[0051] 2. Driving mechanism; 21. Extension rod; 22. Driving wheel; 23. First stepper motor;

[0052] 3. Angle adjustment mechanism; 31. Annular guide rail; 32. Driven gear ring; 33. Mounting plate; 34. Guide wheel; 35. Second stepping motor; 36. Rotating shaft; 37. Driving gear;

[0053] 4. Fixing mechanism;

[0054] 41. Clamping structure; 411. Third stepping motor; 412. Rotating ring; 413. First threaded rod; 414. Protective shell; 415. Driving gear; 416. Through slot; 417. First gear ring; 418. Second gear ring; 419. Driven gear; 4110. Stop block; 4111. Stabilizing block; 4112. Slide slot; 4113. Stabilizing rod;

[0055] 42. Protective structure; 421. Clamping block; 422. Sleeve; 423. Accommodating groove; 424. Piston cylinder; 425. Piston column; 426. Stop rod; 427. Dividing plate; 428. One-way valve; 429. Pressure relief component; 4210. Piston ring; 4211. Return spring;

[0056] 4291, pressure relief cylinder; 4292, liquid inlet groove; 4293, liquid outlet groove; 4294, baffle; 4295, sealing groove; 4296, sealing plug; 4297, pressing block; 4298, second threaded rod; 4299, knob; 42910, extrusion spring DETAILED DESCRIPTION

[0057] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0058] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0059] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0060] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0061] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] See also Figure 1-7 The present invention provides a technical solution: an automatic continuous welding stainless steel pipe welding positioning device, comprising a base 1, characterized in that: a mounting seat 11 is provided on the top of the base 1, the mounting seat 11 is threadedly connected to the base 1, and the number of the mounting seats 11 is set to two;

[0063] A fixing ring 12 is fixedly connected to the top of the mounting seat 11, and the cross-sectional shape of the fixing ring 12 is set to be U-shaped. The side wall of the fixing ring 12 is provided with a driving mechanism 2 for conveying the stainless steel pipe;

[0064] A mounting ring 13 is provided inside the fixing ring 12, and the cross-sectional shape of the mounting ring 13 is set to be U-shaped. An angle adjustment mechanism 3 for adjusting the angle of the stainless steel pipe is provided between the fixing ring 12 and the mounting ring 13;

[0065] The mounting ring 13 is provided with a fixing mechanism 4 for fixing the stainless steel pipe;

[0066] The fixing mechanism 4 includes a clamping structure 41 for clamping the stainless steel pipe and a protective structure 42 for preventing the stainless steel pipe from being over-pressurized.

[0067] The clamping structure 41 includes a third stepping motor 411, a rotating ring 412 and a first threaded rod 413, wherein the end of the first threaded rod 413 is threadedly connected with a stopper 4110;

[0068] The protective structure 42 includes a clamping block 421, the number of the clamping blocks 421 is the same as the number of the resisting blocks 4110, the ends of the plurality of the clamping blocks 421 are fixedly connected with sleeves 422, and the plurality of sleeves 422 are respectively slidably arranged with the plurality of resisting blocks 4110; a receiving groove 423 is provided inside the clamping block 421, a piston cylinder 424 is connected to the side wall of the clamping block 421, a piston column 425 is slidably arranged inside the piston cylinder 424, a resisting rod 426 is fixedly connected to the end of the piston column 425, and the end of the resisting rod 426 away from the piston column 425 is fixedly connected to the adjacent resisting block 4110; a partition plate 427 is fixedly connected between the outer periphery of the piston cylinder 424 and the receiving groove 423, the partition plate 427 is set in an annular shape, and a pressure relief component 429 is also provided on the surface of the partition plate 427;

[0069] The pressure relief component 429 includes a pressure relief cylinder 4291, which is arranged between the dividing plate 427 and the containing groove 423. A liquid inlet groove 4292 is provided at the bottom of the pressure relief cylinder 4291, and a liquid outlet groove 4293 is provided at the top of the pressure relief cylinder 4291. A baffle plate 4294 is provided between the liquid inlet groove 4292 and the liquid outlet groove 4293. A sealing groove 4295 is provided on the surface of the baffle plate 4294. A sealing plug 4296 is provided inside the sealing groove 4295, and a pressing block 4297 is provided on one side of the sealing plug 4296.

[0070] An extrusion spring 42910 is provided between the pressing block 4297 and the sealing plug 4296, one end of the extrusion spring 42910 abuts against the pressing block 4297, and the other end of the extrusion spring 42910 abuts against the sealing plug 4296;

[0071] The space between the piston cylinders 424 and 423 is filled with hydraulic oil.

[0072] Further, the driving mechanism 2 includes an extension rod 21, one end of the extension rod 21 is fixedly connected to the fixing ring 12, the other end of the extension rod 21 is rotatably connected to the driving wheel 22, the side wall of the extension rod 21 is fixedly connected to the first stepper motor 23, and the output end of the first stepper motor 23 is fixedly connected to the driving wheel 22;

[0073] The number of the extension rods 21 is set to be multiple, and the multiple extension rods 21 are distributed around the center of the fixing ring 12.

[0074] Further, the angle adjustment mechanism 3 includes an annular guide rail 31, a driven gear ring 32 and a mounting plate 33. The annular guide rail 31 is provided in two groups. The two groups of annular guide rails 31 are respectively provided on the outer peripheries of the two mounting rings 13. The number of the annular guide rails 31 in each group is provided in two. The inner walls of the two annular guide rails 31 are fixedly connected to the outer walls of the adjacent mounting rings 13.

[0075] A plurality of guide wheels 34 are disposed on the outer periphery of the annular guide rail 31, and the plurality of guide wheels 34 are rotatably connected to the inner wall of the adjacent fixing ring 12, and the plurality of guide wheels 34 are matched with the annular guide rail 31;

[0076] The number of driven gear rings 32 is set to two, and the inner peripheries of the two driven gear rings 32 are fixedly connected to the outer peripheries of the two mounting rings 13 respectively;

[0077] The bottom of the mounting plate 33 is fixedly connected to the base 1 by bolts, and the side wall of the mounting plate 33 is fixedly connected to the second stepper motor 35. The output shaft of the second stepper motor 35 is fixedly connected to a rotating shaft 36. The middle of the rotating shaft 36 passes through two fixed rings 12. The rotating shaft 36 is rotatably connected to the two fixed rings 12. Two driving gears 37 are fixedly connected to the outer periphery of the rotating shaft 36. The two driving gears 37 are respectively meshed with the two driven gear rings 32.

[0078] Further, the side wall of the third stepper motor 411 is fixedly connected to the side wall of the mounting ring 13, a protective shell 414 is provided on the outer periphery of the third stepper motor 411, the protective shell 414 is fixedly connected to the mounting ring 13, a driving gear 415 is fixedly connected to the output end of the third stepper motor 411, a through groove 416 is provided at the bottom of the driving gear 415, and the through groove 416 is arranged through the mounting ring 13;

[0079] The rotating ring 412 is disposed inside the mounting ring 13, and the rotating ring 412 is rotatably connected to the inner wall of the mounting ring 13. A first gear ring 417 is fixedly connected to the top of the rotating ring 412, and the first gear ring 417 is meshed with the driving gear 415. A second gear ring 418 is fixedly connected to the bottom of the rotating ring 412;

[0080] The first threaded rod 413 is disposed inside the mounting ring 13, and the end of the first threaded rod 413 is rotatably connected to the inner wall of the mounting ring 13. The number of the first threaded rods 413 is set to be multiple, and the multiple first threaded rods 413 are distributed around the center of the mounting ring 13;

[0081] A driven gear 419 is fixedly connected to the outer periphery of the first threaded rod 413, and the driven gear 419 is meshed with the second gear ring 418. Stabilizing blocks 4111 are fixedly connected to both sides of the stop block 4110. Slide grooves 4112 are also provided on both sides of the stop block 4110. Both the slide grooves 4112 penetrate the mounting ring 13. The two stabilizing blocks 4111 are slidably connected to the adjacent slide grooves 4112 respectively. Stabilizing rods 4113 are provided in the middle of the two stabilizing blocks 4111.

[0082] The stabilizing rod 4113 is slidably connected to the stabilizing block 4111 , and both ends of the stabilizing rod 4113 are fixedly connected to the inner wall of the sliding groove 4112 .

[0083] Furthermore, a one-way valve 428 is provided on the surface of the dividing plate 427;

[0084] A piston ring 4210 is slidably disposed between the piston cylinder 424 and the receiving groove 423 . A return spring 4211 is disposed on one side of the piston ring 4210 . One end of the return spring 4211 abuts against the piston ring 4210 , and the other end of the return spring 4211 abuts against the inner wall of the receiving groove 423 .

[0085] Furthermore, the end of the clamping block 4297 is rotatably connected to a second threaded rod 4298, the second threaded rod 4298 passes through the pressure relief cylinder 4291 and the clamping block 421, the second threaded rod 4298 is threadedly connected to the pressure relief cylinder 4291 and the clamping block 421, and the end of the second threaded rod 4298 is fixedly connected to a knob 4299.

[0086] The working principle and use process of the present invention:

[0087] By starting the third stepper motor 411, the first gear ring 417 and the rotating ring 412 can be driven to rotate through the driving gear 415. At the same time, the rotating ring 412 will simultaneously drive multiple driven gears 419 and the first threaded rod 413 to rotate through the second gear ring 418. The stopper 4110 connected to the first threaded rod 413 is limited by two stabilizing blocks 4111 and cannot rotate by itself. Therefore, the rotation of the first threaded rod 413 can drive the stopper 426 threadedly connected thereto to move along the axis of the first threaded rod 413. The moving direction of the stopper 426 can be controlled by controlling the rotation direction of the first threaded rod 413. Therefore, by controlling the third stepper motor 411, multiple stoppers 4110 can be driven to extend or retract synchronously at the same time, so that the outer wall of the stainless steel pipe can be clamped. Because the stoppers 4110 are in large number and distributed around the outer circumference of the stainless steel pipe, the stainless steel pipe is subjected to uniform force when clamped, thereby preventing the stainless steel pipe from being deformed due to uneven force.

[0088] The clamping block 421 is arranged at the end of the stop block 4110, and the piston cylinder 424 and the receiving groove 423 are filled with hydraulic oil. Therefore, when the stop block 4110 applies force to drive the clamping block 421 to contact the outer wall of the stainless steel pipe, the stop block 4110 will drive the piston column 425 to squeeze the hydraulic oil in the piston cylinder 424 through the stop rod 426. When the output of the stop block 4110 is too large, when the pressure in the piston cylinder 424 and the receiving groove 423 is too large, the hydraulic oil will enter the pressure relief cylinder 4291 through the liquid inlet groove 4292, and the hydraulic oil will push open the sealing plug 4296, and the sealing plug 4296 will squeeze and compress the extrusion spring 42910. At this time, the hydraulic oil will be discharged through the sealing groove 4295 and the liquid outlet groove 4293 in turn. Therefore, through the above structure, when the hydraulic oil is subjected to a large pressure, the hydraulic oil can flow from one side of the dividing plate 427 to the other side of the dividing plate 427.

[0089] By rotating the second threaded rod 4298 through the knob 4299, the distance between the pressing block 4297 and the sealing plug 4296 can be adjusted, thereby adjusting the compression length of the extrusion spring 42910, and then adjusting the initial pressure of the extrusion spring 42910 and the sealing plug 4296, thereby adjusting the pressure relief value of the hydraulic oil, so that the pressure relief value of the hydraulic oil can be adjusted according to the thickness and strength of the stainless steel pipe;

[0090] The hydraulic pressure entering the other side of the dividing plate 427 will squeeze the piston ring 4210 to slide between the piston cylinder 424 and the receiving groove 423 and squeeze and compress the return spring 4211. During this process, the clamping block 421 will move and shrink relative to the resisting block 4110, thereby preventing the resisting block 4110 from exerting too much force and driving the clamping block 421 to squeeze the outer wall of the stainless steel pipe, thereby causing the stainless steel pipe to deform.

[0091] When the stop block 4110 contracts and drives the clamping block 421 to separate from the outer wall of the stainless steel pipe, the return spring 4211 will rebound and drive the piston ring 4210 to return to its original position. At the same time, the piston ring 4210 will squeeze the hydraulic oil, so that the hydraulic oil will flow back from one side of the dividing plate 427 to the other side of the dividing plate 427 through the one-way valve 428.

[0092] A plurality of driving wheels 22 can be attached to the outer circumference of the stainless steel pipe, and then the driving wheels 22 can be driven to rotate by starting the first stepper motor 23, so that the stainless steel pipe can be driven to move horizontally by the driving wheels 22, and the stainless steel pipe can be transported;

[0093] The mounting ring 13 can rotate inside the fixing ring 12 through a plurality of guide wheels 34, and the rotating shaft 36 can be driven to rotate by starting the second stepper motor 35. At the same time, the rotating shaft 36 will simultaneously drive the two driving gears 37 to rotate. At this time, the two driving gears 37 will respectively drive the two mounting rings 13 and the fixing ring 12 to rotate inside, thereby adjusting the angles of the two mounting rings 13 relative to the fixing ring 12 at the same time, thereby adjusting the angle of the stainless steel tube.

[0094] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A stainless steel pipe welding positioning device for automatic continuous welding, comprising a base (1), characterized in that: A mounting seat (11) is provided on the top of the base (1), the mounting seat (11) being threadedly connected to the base (1), and the number of the mounting seats (11) is set to be two; A fixing ring (12) is fixedly connected to the top of the mounting seat (11); the cross-sectional shape of the fixing ring (12) is set to be U-shaped; and a driving mechanism (2) for conveying the stainless steel pipe is provided on the side wall of the fixing ring (12); A mounting ring (13) is provided inside the fixing ring (12); the cross-sectional shape of the mounting ring (13) is set to be U-shaped; an angle adjustment mechanism (3) for adjusting the angle of the stainless steel pipe is provided between the fixing ring (12) and the mounting ring (13); A fixing mechanism (4) for fixing the stainless steel pipe is provided inside the mounting ring (13); The fixing mechanism (4) comprises a clamping structure (41) for clamping the stainless steel pipe, and a protective structure (42) for preventing the stainless steel pipe from being subjected to excessive pressure; The clamping structure (41) comprises a third stepping motor (411), a rotating ring (412) and a first threaded rod (413); the end of the first threaded rod (413) is threadedly connected to a stop block (4110); The protective structure (42) comprises a clamping block (421), the number of the clamping blocks (421) being the same as the number of the abutting blocks (4110), the ends of the plurality of clamping blocks (421) being fixedly connected with sleeves (422), the plurality of sleeves (422) being respectively slidably engaged with the plurality of abutting blocks (4110); a receiving groove (423) being provided inside the clamping block (421), a piston cylinder (424) being provided in communication with the side wall of the clamping block (421), the piston cylinder ( 424) is slidably provided with a piston column (425) inside, the end of the piston column (425) is fixedly connected with a stop rod (426), and the end of the stop rod (426) away from the piston column (425) is fixedly connected to the adjacent stop block (4110); a partition plate (427) is fixedly connected between the outer periphery of the piston cylinder (424) and the accommodating groove (423), the partition plate (427) is set in an annular shape, and a pressure relief component (429) is also provided on the surface of the partition plate (427); The pressure relief component (429) comprises a pressure relief cylinder (4291), the pressure relief cylinder (4291) being arranged between the dividing plate (427) and the containing groove (423), the bottom of the pressure relief cylinder (4291) being provided with a liquid inlet groove (4292), the top of the pressure relief cylinder (4291) being provided with a liquid outlet groove (4293), a baffle plate (4294) being provided between the liquid inlet groove (4292) and the liquid outlet groove (4293), a sealing groove (4295) being provided on the surface of the baffle plate (4294), a sealing plug (4296) being provided inside the sealing groove (4295), and a pressing block (4297) being provided on one side of the sealing plug (4296); An extrusion spring (42910) is provided between the pressing block (4297) and the sealing plug (4296), one end of the extrusion spring (42910) abuts against the pressing block (4297), and the other end of the extrusion spring (42910) abuts against the sealing plug (4296); Hydraulic oil is filled between the piston cylinder (424) and the containing groove (423).

2. The automatic continuous welding stainless steel pipe welding positioning device according to claim 1, characterized in that: The driving mechanism (2) comprises an extension rod (21), one end of the extension rod (21) is fixedly connected to a fixing ring (12), the other end of the extension rod (21) is rotatably connected to a driving wheel (22), a side wall of the extension rod (21) is fixedly connected to a first stepper motor (23), and an output end of the first stepper motor (23) is fixedly connected to the driving wheel (22); The number of the extension rods (21) is set to be multiple, and the multiple extension rods (21) are distributed around the center of the fixing ring (12).

3. The automatic continuous welding stainless steel pipe welding positioning device according to claim 1, characterized in that: The angle adjustment mechanism (3) comprises an annular guide rail (31), a driven gear ring (32) and a mounting plate (33); the annular guide rail (31) is provided in two groups, the two groups of annular guide rails (31) are respectively provided on the outer peripheries of two mounting rings (13), the number of the annular guide rails (31) in each group is provided in two, and the inner walls of the two annular guide rails (31) are fixedly connected to the outer walls of the adjacent mounting rings (13); A plurality of guide wheels (34) are provided on the outer periphery of the annular guide rail (31), the plurality of guide wheels (34) are rotatably connected to the inner wall of an adjacent fixed ring (12), and the plurality of guide wheels (34) are matched with the annular guide rail (31); The number of the driven gear rings (32) is set to two, and the inner peripheries of the two driven gear rings (32) are respectively fixedly connected to the outer peripheries of the two mounting rings (13); The bottom of the mounting plate (33) is fixedly connected to the base (1) by bolts, a second stepper motor (35) is fixedly connected to the side wall of the mounting plate (33), an output shaft of the second stepper motor (35) is fixedly connected to a rotating shaft (36), a middle portion of the rotating shaft (36) passes through two fixing rings (12), the rotating shaft (36) is rotatably connected to the two fixing rings (12), and two driving gears (37) are fixedly connected to the outer periphery of the rotating shaft (36), the two driving gears (37) are respectively meshed with two driven gear rings (32).

4. The automatic continuous welding stainless steel pipe welding positioning device according to claim 1, characterized in that: The side wall of the third stepper motor (411) is fixedly connected to the side wall of the mounting ring (13); a protective shell (414) is provided on the outer periphery of the third stepper motor (411); the protective shell (414) is fixedly connected to the mounting ring (13); a driving gear (415) is fixedly connected to the output end of the third stepper motor (411); a through groove (416) is provided at the bottom of the driving gear (415); and the through groove (416) penetrates the mounting ring (13); The rotating ring (412) is arranged inside the mounting ring (13), the rotating ring (412) is rotatably connected to the inner wall of the mounting ring (13), the top of the rotating ring (412) is fixedly connected to a first gear ring (417), the first gear ring (417) is meshingly connected to a driving gear (415), and the bottom of the rotating ring (412) is fixedly connected to a second gear ring (418); The first threaded rod (413) is arranged inside the mounting ring (13), the end of the first threaded rod (413) is rotatably connected to the inner wall of the mounting ring (13), the number of the first threaded rods (413) is set to be multiple, and the multiple first threaded rods (413) are distributed around the center of the mounting ring (13); A driven gear (419) is fixedly connected to the outer periphery of the first threaded rod (413), and the driven gear (419) is meshedly connected to the second gear ring (418). Stabilizing blocks (4111) are fixedly connected to both sides of the stop block (4110). Slide grooves (4112) are also provided on both sides of the stop block (4110), and both the slide grooves (4112) are arranged through the mounting ring (13). The two stabilizing blocks (4111) are respectively slidably connected to adjacent slide grooves (4112), and a stabilizing rod (4113) is provided through the middle of the two stabilizing blocks (4111); The stabilizing rod (4113) is slidably connected to the stabilizing block (4111), and both ends of the stabilizing rod (4113) are fixedly connected to the inner wall of the sliding groove (4112).

5. The automatic continuous welding stainless steel pipe welding positioning equipment according to claim 1, characterized in that: A one-way valve (428) is provided on the surface of the dividing plate (427); A piston ring (4210) is also slidably disposed between the piston cylinder (424) and the receiving groove (423). A return spring (4211) is disposed on one side of the piston ring (4210). One end of the return spring (4211) abuts against the piston ring (4210), and the other end of the return spring (4211) abuts against the inner wall of the receiving groove (423).

6. The automatic continuous welding stainless steel pipe welding positioning device according to claim 1, characterized in that: The end of the clamping block (4297) is rotatably connected to a second threaded rod (4298), the second threaded rod (4298) passes through the pressure relief cylinder (4291) and the clamping block (421), the second threaded rod (4298) is threadedly connected to the pressure relief cylinder (4291) and the clamping block (421), and the end of the second threaded rod (4298) is fixedly connected to a knob (4299).

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