CN113601073A - Stainless steel pipe fitting welding machine - Google Patents
Stainless steel pipe fitting welding machine Download PDFInfo
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- CN113601073A CN113601073A CN202111173412.1A CN202111173412A CN113601073A CN 113601073 A CN113601073 A CN 113601073A CN 202111173412 A CN202111173412 A CN 202111173412A CN 113601073 A CN113601073 A CN 113601073A
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- clamping
- stainless steel
- steel pipe
- inner support
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/02—Carriages for supporting the welding or cutting element
- B23K37/0211—Carriages for supporting the welding or cutting element travelling on a guide member, e.g. rail, track
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/02—Carriages for supporting the welding or cutting element
- B23K37/0247—Driving means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
- B23K37/0531—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor internal pipe alignment clamps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/02—Iron or ferrous alloys
- B23K2103/04—Steel or steel alloys
- B23K2103/05—Stainless steel
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention relates to the technical field of welding processing, and particularly provides a stainless steel pipe welding machine which comprises a base, an outer clamp positioning mechanism for clamping and positioning a flange plate, an inner support aligning mechanism for positioning an inner support of a stainless steel pipe, a rotary welding mechanism and a bearing pressing mechanism fixed on the base, wherein the outer clamp positioning mechanism is used for clamping and positioning the flange plate; the welding machine can automatically perform rotary welding processing on flange plates and stainless steel pipe fittings with different matching sizes, replaces traditional manual welding, greatly improves the welding processing efficiency, eliminates the influence of manual factors on the welding quality, and ensures the welding quality.
Description
Technical Field
The invention relates to the technical field of welding processing, and particularly provides a stainless steel pipe fitting welding machine.
Background
The stainless steel pipe fitting is widely applied to various fields of constructional engineering, and the common processing process is to weld the stainless steel pipe fitting according to the requirements of design and installation; in a pipeline system using stainless steel pipe fittings as pipeline components, in order to facilitate the quick connection and matching between pipelines, a flange connection mode is generally adopted, namely a flange plate is welded at the pipe orifice end of the stainless steel pipe fitting.
In the welding process of current stainless steel pipe fitting and ring flange, because the diameter of stainless steel pipe fitting is not of uniform size, and also is different with the size of pipe fitting matched with ring flange, consequently, during actual welding process, rely on the manual work to carry out welding process basically, adopt manual welding obviously to have following several problems: 1. the manual welding mode has higher requirement on the welding level of a welder, and particularly under the condition of higher requirement on the welding quality, the manual welding mode cannot guarantee the high quality requirement of welding processing, and has hidden quality danger.
2. Because the length of stainless steel pipe fitting is generally longer, there are the inconvenient problem of stainless steel pipe fitting and ring flange butt joint during manual welding to and have the not high problem of axial coincidence precision between ring flange and the stainless steel pipe fitting after the manual welding.
Disclosure of Invention
In order to solve the above problems, the present invention provides a stainless steel pipe welding machine for solving the above problems mentioned in the background art.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose: a welding machine for stainless steel pipes comprises a base, an outer clamp positioning mechanism for clamping and positioning a flange plate, an inner support aligning mechanism for positioning an inner support of a stainless steel pipe, a rotary welding mechanism and a bearing pressing mechanism fixed on the base; wherein:
the outer clamp positioning mechanism comprises a support frame fixed on the base, a plurality of connecting columns, a disc, a cylindrical shaft, a clamping driving assembly and four clamping and pressing assemblies; the connecting columns are fixedly arranged on the same side wall of the support frame, the circular discs are vertically arranged and fixedly connected to the end parts of the connecting columns, the cylindrical shafts are coaxially arranged with the circular discs, and the cylindrical shafts penetrate and are fixed on the circular discs; four rectangular avoiding holes are uniformly distributed on the disc around the circumference of the central shaft, a guide rail is correspondingly arranged at each avoiding hole on the disc surface facing the support frame, and the guide direction of the guide rail points to the center of the disc; the clamping driving assembly is assembled on the cylindrical shaft and is positioned between the disc and the supporting frame; the four clamping and pressing assemblies and the four avoiding holes are arranged in a one-to-one correspondence manner, and the four clamping and pressing assemblies are uniformly distributed around the circumference of the central shaft of the disc; the clamping and pressing assembly comprises a sliding block which is slidably mounted on the guide rail, a clamping block is integrally formed on the sliding block, the clamping block penetrates through the position avoiding hole, and the clamping block is exposed out of the disc and deviates from one side of the disc surface of the support frame; a pressing block is arranged in front of the clamping block in the axial direction of the disc, two guide pins in sliding fit with the clamping block are connected to the pressing block, the axial direction of each guide pin is parallel to the axial direction of the disc, the pressing block is connected with the sliding block through a tension spring, a guide ball is movably embedded in one side, facing the disc, of the pressing block, and the guide ball is closer to the center of the disc than the clamping block; the clamping driving assembly is used for synchronously driving the four clamping assemblies to slide.
The inner support aligning mechanism is assembled on the cylindrical shaft, and the inner support aligning mechanism and the clamping driving assembly are distributed on two sides of the disc; when the inner support of the inner support aligning mechanism is clamped in the stainless steel pipe fitting, the central axis of the stainless steel pipe fitting is superposed with the central axis of the disc; the rotary welding mechanism comprises a rotary support which is coaxially arranged and fixed on the outer edge of the disc, a welding gun fixing assembly is fixedly installed on a rotary part of the rotary support, and the welding gun fixing assembly and the inner support aligning mechanism are distributed on the same side of the disc.
Preferably, both ends of the cylindrical shaft are both tubular structures, the inner support aligning mechanism comprises an inner support hydraulic cylinder, three inner support rods and three second connecting rods, the inner support hydraulic cylinder, the three inner support rods and the three second connecting rods are fixedly mounted in the cylindrical shaft pipe, an output shaft of the inner support hydraulic cylinder and the cylindrical shaft are coaxially arranged, one ends of the three inner support rods are hinged to the end portion, located on one side, away from the disc surface of the support frame, of the cylindrical shaft, the three inner support rods are evenly distributed around the circumference of a central shaft of the cylindrical shaft, and the inner support rods and the output end of the inner support hydraulic cylinder are hinged and connected through two ends of the second connecting rods.
Preferably, four guide notches are formed in one end, close to the disc surface side of the support frame, of the cylindrical shaft on the disc, and the four guide notches and the four guide rails are arranged in a one-to-one opposite mode; the clamping driving assembly comprises a bearing end cover, a driving screw, a hinging seat and four first connecting rods, the bearing end cover is fixed at the end part of the cylindrical shaft, the driving screw extends into the cylindrical shaft along the axial direction, the driving screw is rotatably installed on the inner end surface of the cylindrical shaft and the bearing end cover, the hinging seat is positioned in the cylindrical shaft, the hinging shaft is in threaded connection with the driving screw, one end of each of the four first connecting rods is hinged on the hinging seat, and the other end of each of the four first connecting rods is hinged on the four sliding blocks in a one-to-one correspondence manner.
Preferably, the rotary welding mechanism further comprises a rotary driving motor fixedly mounted at the top end of the support frame, a driving gear is arranged on an output shaft of the rotary driving motor, a rotary gear ring is assembled on a rotary part of the rotary support, and the rotary gear ring is meshed with the driving gear.
Preferably, the welding gun fixing assembly comprises an adjusting slide rail, a sliding seat plate and a carry hydraulic cylinder; adjusting slide rail fixed connection and being in slewing bearing's the portion of gyration is last, just the direction of adjusting the slide rail is followed the axial setting of disc, the slip bedplate slides and sets up adjust on the slide rail, the both sides of adjusting the slide rail are provided with the through hole, be provided with from two on the slip bedplate the through screw rod that the through hole runs through, the front end of slip bedplate is provided with the slope piece of downward sloping, the carry pneumatic cylinder is fixed on the upper end inclined plane of slope piece, the output of carry pneumatic cylinder is fixed with the welder bedplate.
Preferably, the bearing and pressing mechanism comprises a lower base fixedly mounted on the base, a bearing seat is arranged above the lower base, the bottom end of the bearing seat is vertically and rotatably connected with a hand wheel adjusting rod, the hand wheel adjusting rod is in threaded connection with the lower base, two guide posts which are distributed on two sides of the hand wheel adjusting rod and vertically and slidably matched with the lower base are arranged at the bottom end of the bearing seat, a portal frame is fixedly mounted at the top end of the bearing seat, a pressing hydraulic cylinder is vertically and fixedly mounted at the top end of the portal frame, and the output end of the pressing hydraulic cylinder is horizontally connected with a pressing plate; the bearing seat is provided with a positioning clamping groove of an inverted isosceles trapezoid structure from the top end downwards, the symmetric axis of the isosceles trapezoid and the central shaft of the disc are located on the same vertical plane, and the pressing plate is located right above the positioning clamping groove.
The technical scheme has the following advantages or beneficial effects: 1. the invention provides a stainless steel pipe fitting welding machine which can carry out automatic rotary welding processing on flange plates and stainless steel pipe fittings with different matching sizes, replaces the traditional manual welding, greatly improves the welding processing efficiency, eliminates the influence of manual factors on the welding quality, ensures the welding quality and avoids the hidden trouble of poor welding quality.
2. The invention provides a stainless steel pipe welding machine, which can rapidly clamp and compress flange plates with different sizes through an outer clamp positioning mechanism, can clamp and brace stainless steel pipe plates with different sizes through an inner brace aligning mechanism, can realize the function of axial positioning of the stainless steel pipe plates and the flange plates, and can perform rapid rotary welding forming through a rotary welding mechanism through positioning and clamping of the flange plates and the stainless steel pipe plates.
3. The invention provides a stainless steel pipe welding machine, which is characterized in that a supporting and pressing mechanism is arranged, on one hand, the supporting and pressing mechanism can provide auxiliary support for a pipe fitting when the stainless steel pipe fitting is internally supported and clamped, so that a welding end of the stainless steel pipe fitting can be conveniently moved to be attached to a flange, the problem that the stainless steel pipe fitting is not convenient to butt with the flange is solved, the internal supporting and aligning mechanism can conveniently carry out internal supporting and clamping operation on the pipe fitting, on the other hand, after the stainless steel pipe fitting is aligned, the supporting and pressing on the pipe fitting are carried out, so that the supporting and pressing mechanism can be matched with the internal supporting and aligning mechanism to provide two sections of supports for the stainless steel pipe fitting, the stainless steel pipe fitting is ensured to be in a stable horizontal state, the welding operation is convenient, and the accuracy of axial coincidence of the welded stainless steel pipe fitting and the flange is improved.
Drawings
The invention and its features, aspects and advantages will become more apparent from reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings; the drawings, in which like numerals refer to like parts throughout the several views and which are not necessarily drawn to scale, emphasis instead being placed upon illustrating the principles of the invention.
Fig. 1 is a schematic perspective view of a stainless steel pipe welding machine provided by the invention at a viewing angle.
Fig. 2 is a schematic perspective view of a stainless steel pipe welding machine provided by the invention at another viewing angle.
Fig. 3 is a partially enlarged schematic view at a in fig. 2.
FIG. 4 is a front view of a stainless steel pipe fitting welding machine according to the present invention.
FIG. 5 is a side view of a stainless steel pipe fitting welding machine provided by the invention.
FIG. 6 is a cross-sectional view of the base, outer clamp positioning mechanism, inner support alignment mechanism and spin welder assembly.
Fig. 7 is a partially enlarged schematic view at B in fig. 6.
FIG. 8 is a schematic perspective view of a part of a stainless steel pipe welding machine according to the present invention.
In the figure: 1. a base; 2. an outer clamp positioning mechanism; 21. a support frame; 22. connecting columns; 23. a disc; 231. avoiding holes; 232. a guide rail; 24. a cylindrical shaft; 241. a guide notch; 25. a clamping drive assembly; 251. a bearing end cap; 252. a drive screw; 253. a hinged seat; 254. a first connecting rod; 26. a clamping and pressing component; 261. a slider; 262. a clamping block; 263. briquetting; 2631. a guide pin; 2632. a guide ball; 264. a tension spring; 3. an inner support alignment mechanism; 31. an internal supporting hydraulic cylinder; 32. a second connecting rod; 33. an inner brace rod; 331. an inner support contact; 4. a rotary welding mechanism; 41. a rotary drive motor; 411. a drive gear; 42. a slewing bearing; 421. a rotary gear ring; 43. a welding gun fixing component; 431. adjusting the slide rail; 4311. a through hole; 432. a slide seat plate; 4321. a through screw; 4322. an inclined block; 433. a carry hydraulic cylinder; 4331. a welding gun seat plate; 5. a bearing and pressing mechanism; 51. a lower base; 52. a bearing seat; 521. positioning the clamping groove; 53. a hand wheel adjusting rod; 54. a guide post; 55. a gantry; 56. a compaction hydraulic cylinder; 57. and (7) pressing a plate.
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings for the purpose of providing those skilled in the art with a more complete, accurate and thorough understanding of the concept and technical solution of the present invention, and to facilitate the implementation thereof, but not to limit the present invention.
As shown in fig. 1, a welding machine for stainless steel pipes comprises a base 1, an outer clamping and positioning mechanism 2 for clamping and positioning a flange plate, an inner support aligning mechanism 3 for positioning an inner support of a stainless steel pipe, a rotary welding mechanism 4 and a bearing and pressing mechanism 5 fixed on the base 1;
as shown in fig. 2, 3, 4, 5, 6, 7 and 8, the outer clamp positioning mechanism 2 includes a support frame 21 welded on the base 1, four connecting columns 22, a circular disc 23, a cylindrical shaft 24, a clamping driving assembly 25 and four clamping and pressing assemblies 26; the four connecting columns 22 are fixedly installed on the same side wall of the support frame 21 through bolts, the disc 23 is vertically arranged and fixedly connected to the end parts of the four connecting columns 22 through bolts, the cylindrical shaft 24 and the disc 23 are coaxially arranged, the cylindrical shaft 24 penetrates through and is fixed on the disc 23, and the two ends of the cylindrical shaft 24 are both in tubular structures; four rectangular avoiding holes 231 are uniformly distributed on the disc 23 around the circumference of the central shaft, a guide rail 232 is correspondingly arranged at each avoiding hole 231 on the disc 23 facing the disc surface of the support frame 21, and the guide direction of the guide rail 232 points to the center of the disc 23; the clamping driving assembly 25 is assembled on the cylindrical shaft 24 and positioned between the disc 23 and the supporting frame 21; the four clamping and pressing components 26 are arranged in one-to-one correspondence with the four clearance holes 231, and the four clamping and pressing components 26 are uniformly distributed around the circumference of the central shaft of the disc 23; the clamping and pressing assembly 26 comprises a sliding block 261 which is slidably mounted on the guide rail 232, a clamping block 262 is integrally formed on the sliding block 261, the clamping block 262 penetrates through the position avoiding hole 231, and the clamping block 262 is exposed on the disc 23 and deviates from the disc surface side of the support frame 21; a pressing block 263 is arranged at the axial front position of the clamping block 262 in the disc 23, two guide pins 2631 which are in sliding fit with the clamping block 262 are connected to the pressing block 263, the axial direction of the guide pins 2631 is parallel to the axial direction of the disc 23, the pressing block 263 is connected with the sliding block 261 through a tension spring 264, a guide ball 2632 is movably embedded on one side of the pressing block 263 facing the disc 23, and the guide ball 2632 is closer to the center of the disc 23 than the clamping block 262; the clamping driving assembly 25 is used for synchronously driving the four clamping assemblies to slide. One end of the cylindrical shaft 24, which is positioned on one side of the disc surface of the disc 23 close to the support frame 21, is provided with four guide notches 241, and the four guide notches 241 are arranged opposite to the four guide rails 232 one by one; the clamping driving assembly 25 comprises a bearing end cover 251, a driving screw 252, a hinge seat 253 and four first connecting rods 254, the bearing end cover 251 is fixed at the end of the cylindrical shaft 24 through screw locking, the driving screw 252 axially extends into the cylindrical shaft 24, the driving screw 252 is rotatably installed on the inner end surface of the cylindrical shaft 24 and the bearing end cover 251, the hinge seat 253 is positioned in the cylindrical shaft 24, a hinge shaft is in threaded connection with the driving screw 252, one end of each of the four first connecting rods 254 is hinged on the hinge seat 253, and the other ends of the four first connecting rods 254 are correspondingly hinged on the four sliding blocks 261 one by one.
When the flange plate and the stainless steel pipe are welded, firstly, the flange plate is clamped and positioned by the outer clamping positioning mechanism 2, specifically, under the limitation of the guide notch 241 to the first connecting rod 254, the hinge seat 253 is driven to move axially by rotating the driving screw 252, the hinge seat 253 pulls the sliding block 261 to slide along the guide rail 232 towards the direction far away from the center of the disc 23 by the four first connecting rods 254, then the clamping radius of the four clamping and pressing components 26 is synchronously increased until the clamping radius is larger than the outer circle radius of the flange plate to be welded, the flange plate can be ensured to be normally placed between the four clamping and pressing components 26, then, the flange plate passes through the inner support aligning mechanism 3, so that the flange plate is sleeved on the cylindrical shaft 24, the cylindrical shaft 24 can provide auxiliary support at the moment, the lower end of the flange plate is contacted with the guide ball 2632 of the clamping and pressing component 26 at the lowest position, and then, by rotating the driving screw 252, the four clamping and pressing assemblies 26 move towards the direction close to the center of the disc 23, finally, under the guidance of the guiding balls 2632 and under the action of the elastic force of the tension springs 264, the four guiding balls 2632 press the disc surface of the flange plate smoothly, the flange plate is attached to the disc surface of the disc 23, in addition, the outer edge of the flange plate is clamped between the four clamping blocks 262, so far, the flange plate realizes the fixing function through outer clamping and pressing, and the purpose of positioning and coinciding the central axis of the flange plate and the central axis of the disc 23 is achieved.
As shown in fig. 2, 4 and 5, the bearing and pressing mechanism 5 includes a lower base 51 welded on the base 1, a bearing seat 52 is arranged above the lower base 51, a hand wheel adjusting rod 53 is connected to the bottom end of the bearing seat 52 in a vertical rotating manner, the hand wheel adjusting rod 53 is in threaded connection with the lower base 51, two guide posts 54 which are distributed on two sides of the hand wheel adjusting rod 53 and vertically and slidably matched with the lower base 51 are arranged at the bottom end of the bearing seat 52, a portal frame 55 is welded at the top end of the bearing seat 52, a pressing hydraulic cylinder 56 is vertically and fixedly installed at the top end of the portal frame 55 through a bolt, and a pressing plate 57 is horizontally connected to the output end of the pressing hydraulic cylinder 56; the bearing seat 52 is provided with a positioning clamping groove 521 of an inverted isosceles trapezoid structure from the top end downwards, the symmetry axis of the isosceles trapezoid and the central axis of the disc 23 are located on the same vertical plane, and the pressing plate 57 is located right above the positioning clamping groove 521.
As shown in fig. 2, 4 and 6, the inner support aligning mechanism 3 is assembled on the cylindrical shaft 24, and the inner support aligning mechanism 3 and the chucking driving assembly 25 are distributed on both sides of the disc 23; when the inner support aligning mechanism 3 is clamped in the stainless steel pipe fitting, the central axis of the stainless steel pipe fitting is superposed with the central axis of the disc 23; the inner support aligning mechanism 3 comprises an inner support hydraulic cylinder 31, three inner support rods 33 and three second connecting rods 32 which are fixedly installed in a cylindrical shaft 24 pipe through bolts, an output shaft of the inner support hydraulic cylinder 31 is coaxially arranged with the cylindrical shaft 24, one ends of the three inner support rods 33 are hinged to the end portion, located on the disc surface side, far away from the support frame 21, of the cylindrical shaft 24, the three inner support rods 33 are evenly distributed around the circumference of a central shaft of the cylindrical shaft 24, and the inner support rods 33 and the output end of the inner support hydraulic cylinder 31 are hinged and arranged through the two ends of the second connecting rods 32; the front end of the inner stay 33 is provided with an inner stay contact 331.
When the outer clamping and positioning of the flange plate is completed, the stainless steel pipe to be welded needs to be butted and placed, specifically, the stainless steel pipe is placed on the positioning clamping groove 521, then the three inner support rods 33 of the inner support aligning mechanism 3 are placed into the pipe at the end to be welded of the stainless steel pipe, then the stainless steel pipe is pulled to enable the welding end to be attached to the flange plate surface, then, in the state that the welding end is attached tightly, the inner support hydraulic cylinder 31 is started to enable the output end to extend out, the inner support rods 33 are driven through the three second connecting rods 32 to enable the three inner support contacts 331 to be clamped in the pipe of the stainless steel pipe, after the inner support clamping is completed, the stainless steel pipe and the flange plate realize the aligning function, namely the central shafts of the stainless steel pipe and the flange plate are in the overlapped state, then, the hand wheel adjusting rod 53 is rotated to drive the bearing seat 52 to move upwards, so that the stainless steel pipe is just supported in the positioning clamping groove 521, then, the pressing hydraulic cylinder 56 is started to press the pressing plate 57 on the stainless steel pipe fitting; set up bearing hold-down mechanism 5's aim at, because the general length of stainless steel pipe fitting is longer, on the one hand can provide the auxiliary stay of pipe fitting when carrying out internal stay to stainless steel pipe fitting and pressing from both sides tightly, conveniently remove stainless steel pipe fitting weld end and ring flange subsides tightly, also make things convenient for internal stay to adjust mechanism 3 and carry out internal stay to pipe fitting and press from both sides tight operation, on the other hand, accomplish adjusting back well of stainless steel pipe fitting, through the bearing to the pipe fitting and compress tightly, make can adjust mechanism 3 cooperations with internal stay well and provide two sections supports to stainless steel pipe fitting, thereby guarantee that stainless steel pipe fitting is in stable horizontality, make things convenient for welding operation, improve the precision of welding axial coincidence.
As shown in fig. 2, 3 and 4, the rotary welding mechanism 4 includes a rotary support 42 coaxially disposed and welded on the outer edge of the disc 23, a welding gun fixing assembly 43 is fixedly mounted on a rotary portion of the rotary support 42, and the welding gun fixing assembly 43 and the inner support aligning mechanism 3 are distributed on the same side of the disc 23; the rotary welding mechanism 4 further comprises a rotary driving motor 41 fixedly mounted at the top end of the support frame 21 through bolts, a driving gear 411 is arranged on an output shaft of the rotary driving motor 41, a rotary gear ring 421 is assembled on a rotary part of the rotary support 42, and the rotary gear ring 421 is meshed with the driving gear 411; the welding gun fixing assembly 43 comprises an adjusting slide rail 431, a slide seat plate 432 and a carry hydraulic cylinder 433; the adjusting slide rail 431 is welded on a rotary part of the rotary support 42, the guiding direction of the adjusting slide rail 431 is arranged along the axial direction of the disc 23, the slide seat plate 432 is arranged on the adjusting slide rail 431 in a sliding mode, through holes 4311 are formed in two sides of the adjusting slide rail 431, a through screw 4321 penetrating through the two through holes 4311 is arranged on the slide seat plate 432, nuts are connected to two ends of the through screw 4321 in a threaded mode, the slide seat plate 432 can be locked through the nuts at two ends, an inclined block 4322 inclining downwards is arranged at the front end of the slide seat plate 432, the included angle between the inclined block 4322 and the horizontal plane is 45 degrees, the carry hydraulic cylinder 433 is fixed on the inclined plane at the upper end of the inclined block 4322 through bolts, a welding gun seat plate 4331 is fixed at the output end of the carry hydraulic cylinder 433, and a welding gun and other components for welding are directly installed on the welding gun seat plate 4331.
After the welding positioning of the stainless steel pipe fittings is completed, the welding positions of the stainless steel pipe fittings with different diameters and the flange plates matched with the stainless steel pipe fittings are different, so that the welding positions need to be adjusted, the welding positions are adjusted by adjusting the welding gun fixing component 43, specifically, the sliding seat plate 432 is loosened, then the sliding seat plate 432 slides along the adjusting slide rail 431, and the welding gun is carried by the carrying hydraulic cylinder 433 through adjustment, so that the welding gun can be exactly positioned at the welding positions; accomplish butt welding gun position control back, alright carry out the gyration welding, it is concrete, it is rotatory to drive gear 411 through starting gyration driving motor 41, drive gear 411 will drive gyration ring gear 421 at the uniform velocity rotatory, then welder fixed subassembly 43 will be along with gyration ring gear 421 synchronous revolution, welder will carry out the gyration welding shaping to ring flange and stainless steel pipe fitting.
Those skilled in the art should understand that those skilled in the art can implement the modifications in combination with the prior art and the above embodiments, and detailed descriptions thereof are omitted; such variations do not affect the essence of the present invention and are not described herein.
The above description is of the preferred embodiment of the invention; it is to be understood that the invention is not limited to the particular embodiments described above, in that devices and structures not described in detail are understood to be implemented in a manner common in the art; any person skilled in the art can make many possible variations and modifications, or modify equivalent embodiments, without departing from the technical solution of the invention, without affecting the essence of the invention; therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention, unless the contents of the technical solution of the present invention are departed.
Claims (6)
1. The utility model provides a stainless steel pipe fitting welding machine which characterized in that: the device comprises a base (1), an outer clamping and positioning mechanism (2) for clamping and positioning a flange plate, an inner support aligning mechanism (3) for positioning an inner support of a stainless steel pipe fitting, a rotary welding mechanism (4) and a bearing and pressing mechanism (5) fixed on the base (1);
the outer clamp positioning mechanism (2) comprises a support frame (21) fixed on the base (1), a plurality of connecting columns (22), a disc (23), a cylindrical shaft (24), a clamping driving assembly (25) and four clamping and pressing assemblies (26); the connecting columns (22) are fixedly arranged on the same side wall of the support frame (21), the disc (23) is vertically arranged and fixedly connected to the end parts of the connecting columns (22), the cylindrical shaft (24) and the disc (23) are coaxially arranged, and the cylindrical shaft (24) penetrates through and is fixed on the disc (23); four rectangular avoiding holes (231) are uniformly distributed on the disc (23) around the circumference of the central shaft, a guide rail (232) is correspondingly arranged at each avoiding hole (231) on the disc (23) facing the disc surface of the support frame (21), and the guide direction of the guide rail (232) points to the center of the disc (23); the clamping driving assembly (25) is assembled on the cylindrical shaft (24) and is positioned between the disc (23) and the supporting frame (21); the four clamping and pressing assemblies (26) and the four avoiding holes (231) are arranged in a one-to-one correspondence manner, and the four clamping and pressing assemblies (26) are uniformly distributed around the circumference of the central shaft of the disc (23); the clamping and pressing assembly (26) comprises a sliding block (261) which is slidably mounted on the guide rail (232), a clamping block (262) is integrally formed on the sliding block (261), the clamping block (262) penetrates through the avoiding hole (231), and the clamping block (262) is exposed on the disc (23) and deviates from one side of the disc surface of the support frame (21); a pressing block (263) is arranged at the axial front position of the clamping block (262) on the disc (23), two guide pins (2631) which are in sliding fit with the clamping block (262) are connected to the pressing block (263), the axial direction of each guide pin (2631) is parallel to the axial direction of the disc (23), the pressing block (263) is connected with the sliding block (261) through a tension spring (264), a guide ball (2632) is movably embedded on one side, facing the disc (23), of the pressing block (263), and the guide ball (2632) is closer to the center of the disc (23) than the clamping block (262); the clamping driving assembly (25) is used for synchronously driving the four clamping assemblies to slide;
the inner support aligning mechanism (3) is assembled on the cylindrical shaft (24), and the inner support aligning mechanism (3) and the clamping driving assembly (25) are distributed on two sides of the disc (23); when the inner support aligning mechanism (3) is clamped in the stainless steel pipe fitting, the central axis of the stainless steel pipe fitting is superposed with the central axis of the disc (23); the rotary welding mechanism (4) comprises a rotary support (42) which is coaxially arranged and fixed on the outer edge of the disc (23), a welding gun fixing component (43) is fixedly installed on a rotary part of the rotary support (42), and the welding gun fixing component (43) and the inner support aligning mechanism (3) are distributed on the same side of the disc (23).
2. The stainless steel pipe fitting welding machine according to claim 1, characterized in that: the two ends of the cylindrical shaft (24) are both tubular structures, the inner support aligning mechanism (3) comprises an inner support hydraulic cylinder (31), three inner support rods (33) and three second connecting rods (32) which are fixedly mounted in the cylindrical shaft (24) tube, the output shaft of the inner support hydraulic cylinder (31) and the cylindrical shaft (24) are coaxially arranged, one end of each of the three inner support rods (33) is hinged to the end portion, located on one side, away from the disc surface of the support frame (21), of the disc (23), the three inner support rods (33) are uniformly distributed around the circumference of the central shaft of the cylindrical shaft (24), and the output ends of the inner support rods (33) and the inner support hydraulic cylinder (31) are hinged and arranged through the two ends of the second connecting rods (32).
3. The stainless steel pipe fitting welding machine according to claim 2, characterized in that: one end of the cylindrical shaft (24) which is positioned on one side of the disc surface of the disc (23) close to the support frame (21) is provided with four guide notches (241), and the four guide notches (241) are arranged opposite to the four guide rails (232) one by one; the clamping driving assembly (25) comprises a bearing end cover (251), a driving screw rod (252), a hinging seat (253) and four first connecting rods (254), the bearing end cover (251) is fixed at the end part of the cylindrical shaft (24), the driving screw rod (252) axially extends into a pipe of the cylindrical shaft (24), the driving screw rod (252) is rotatably installed on the inner end surface of the cylindrical shaft (24) and the bearing end cover (251), the hinging seat (253) is located in the pipe of the cylindrical shaft (24), the hinging shaft is in threaded connection with the driving screw rod (252), one ends of the four first connecting rods (254) are hinged on the hinging seat (253), and the other ends of the four first connecting rods (254) are correspondingly hinged on the four sliding blocks (261) one by one.
4. The stainless steel pipe fitting welding machine according to claim 1, characterized in that: the rotary welding mechanism (4) further comprises a rotary driving motor (41) fixedly mounted at the top end of the support frame (21), a driving gear (411) is arranged on an output shaft of the rotary driving motor (41), a rotary gear ring (421) is assembled on a rotary portion of the rotary support (42), and the rotary gear ring (421) is meshed with the driving gear (411).
5. The stainless steel pipe fitting welding machine according to claim 4, characterized in that: the welding gun fixing assembly (43) comprises an adjusting slide rail (431), a slide seat plate (432) and a carry hydraulic cylinder (433); adjust slide rail (431) fixed connection in on the gyration portion of slewing bearing (42), just the direction of adjusting slide rail (431) is followed the axial setting of disc (23), slip bedplate (432) slide and set up adjust on the slide rail (431), the both sides of adjusting slide rail (431) are provided with through hole (4311), be provided with on slip bedplate (432) from two through hole (4311) run through screw rod (4321), the front end of slip bedplate (432) is provided with the slope piece (4322) of downward sloping, carry pneumatic cylinder (433) are fixed on the upper end inclined plane of slope piece (4322), the output of carry pneumatic cylinder (433) is fixed with welder bedplate (4331).
6. The stainless steel pipe fitting welding machine according to claim 1, characterized in that: the bearing and pressing mechanism (5) comprises a lower base (51) fixedly mounted on the base (1), a bearing seat (52) is arranged above the lower base (51), the bottom end of the bearing seat (52) is vertically and rotatably connected with a hand wheel adjusting rod (53), the hand wheel adjusting rod (53) is in threaded connection with the lower base (51), two guide posts (54) which are distributed on two sides of the hand wheel adjusting rod (53) and are vertically and slidably matched with the lower base (51) are arranged at the bottom end of the bearing seat (52), a portal frame (55) is fixedly mounted at the top end of the bearing seat (52), a pressing hydraulic cylinder (56) is vertically and fixedly mounted at the top end of the portal frame (55), and a pressing plate (57) is horizontally connected with the output end of the pressing hydraulic cylinder (56); the bearing seat (52) is provided with a positioning clamping groove (521) of an inverted isosceles trapezoid structure from the top end to the bottom, the symmetry axis of the isosceles trapezoid and the central axis of the disc (23) are located on the same vertical plane, and the pressing plate (57) is located right above the positioning clamping groove (521).
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| CN114669927A (en) * | 2022-05-27 | 2022-06-28 | 南通昊润石化有限公司 | Metal lining device for petroleum drill collar pulse narrow gap welding |
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| CN114669927A (en) * | 2022-05-27 | 2022-06-28 | 南通昊润石化有限公司 | Metal lining device for petroleum drill collar pulse narrow gap welding |
| CN115722833A (en) * | 2022-07-14 | 2023-03-03 | 钱贵兴 | Steel pipe and flange alignment welding set suitable for different diameters |
| CN115308017B (en) * | 2022-08-27 | 2024-04-02 | 金华市八咏交通工程检测有限公司 | Roadbed and pavement strength detection device and method |
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| CN115401290A (en) * | 2022-09-23 | 2022-11-29 | 中铁一局集团有限公司 | Automatic welding device for annular seam of steel pipe in chamber lining |
| CN115837538A (en) * | 2023-02-27 | 2023-03-24 | 江苏江铭机电有限公司 | Automatic welding equipment for seawater frequency conversion water supply storage tank |
| CN116890191A (en) * | 2023-07-12 | 2023-10-17 | 中国五冶集团有限公司 | Steel structure guide rail type all-position welding device |
| CN116618908A (en) * | 2023-07-21 | 2023-08-22 | 中建八局第一建设有限公司 | Automatic pipeline welding device |
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| CN117020445B (en) * | 2023-10-08 | 2024-02-09 | 江苏泰汇不锈钢有限公司 | Stainless steel laser cutting device |
| CN117020445A (en) * | 2023-10-08 | 2023-11-10 | 江苏泰汇不锈钢有限公司 | Stainless steel laser cutting device |
| CN117415614A (en) * | 2023-11-07 | 2024-01-19 | 徐州市瑞泰钢管有限公司 | Large steel pipe butt joint girth welding equipment |
| CN117415614B (en) * | 2023-11-07 | 2024-03-29 | 徐州市瑞泰钢管有限公司 | Large steel pipe butt joint girth welding equipment |
| CN117283136A (en) * | 2023-11-27 | 2023-12-26 | 中建一局集团第二建筑有限公司 | Multi-angle welding equipment for building steel structure |
| CN117283136B (en) * | 2023-11-27 | 2024-02-06 | 中建一局集团第二建筑有限公司 | Multi-angle welding equipment for building steel structure |
| CN117962152A (en) * | 2024-03-28 | 2024-05-03 | 大同宇林德石墨新材料股份有限公司 | Processing device for graphite electrode |
| CN117962152B (en) * | 2024-03-28 | 2024-06-07 | 大同宇林德石墨新材料股份有限公司 | Processing device for graphite electrode |
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