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CN-121649682-B - Small-pipe-diameter flange welding tool

CN121649682BCN 121649682 BCN121649682 BCN 121649682BCN-121649682-B

Abstract

The application discloses a small-pipe-diameter flange welding tool, and belongs to the technical field of small-pipe-diameter flanges. The clamping mechanism comprises two groups of arc plates which are arranged in a circular shape and opposite to each other, the other ends of the two groups of arc plates are provided with chucks, the sliding blocks transversely move and are suitable for driving the two groups of arc plates and the chucks to move, a supporting plate is rotatably connected to one side of the adjusting plate, baffle plates are arranged on the upper side and the lower side of the supporting plate, and a supporting mechanism is used for supporting a connecting pipe and is coaxially arranged. The small-pipe-diameter flange welding tool provided by the application has the advantages that the preparation steps before welding are reduced, the pipe diameter and the flange are ensured to be coaxially arranged, the situation that the flange plate is inclined is avoided, and the rapid batch operation can be realized.

Inventors

  • ZHANG XUNJIE
  • SUN CHENGCAI
  • ZHOU YINAN
  • ZHU BOFENG

Assignees

  • 西安阿尔卑斯环保科技有限公司

Dates

Publication Date
20260505
Application Date
20260206

Claims (4)

  1. 1. The small-pipe-diameter flange welding tool is used for welding a corresponding connecting pipe (15) and a flange plate (14) and is characterized by comprising a base (1), wherein the base (1) is provided with: The welding assembly comprises a two-axis adjusting structure (13) and a welding gun (16) arranged on the two-axis adjusting structure (13), wherein the two-axis adjusting structure (13) is used for adjusting the position of the welding gun (16) based on welding requirements; the workpiece adjusting assembly at least comprises a rotating mechanism (12), wherein the rotating mechanism (12) is positioned on one side of the welding assembly and is used for supporting and driving the connecting pipe (15) and the flange plate (14) to be welded after being assembled to rotate during welding; The axial positioning adjusting assembly is positioned above the workpiece adjusting assembly and comprises an adjusting mechanism (3), a flange positioning mechanism (2) and a connecting pipe positioning mechanism (4) which are connected with each other, wherein the adjusting mechanism (3) is used for coaxially linking the flange positioning mechanism (2) and the connecting pipe positioning mechanism (4) and is used for respectively carrying out positioning support from the interiors of the connecting pipe (15) and the flange plate (14) so as to realize coaxial assembly of the flange positioning mechanism and the connecting pipe positioning mechanism; the adjusting mechanism (3) comprises: a drive cylinder (31), the drive cylinder (31) having an output shaft (33); An adjusting plate (32), wherein the adjusting plate (32) and the driving cylinder (31) are arranged above the base (1); The sliding groove (321) is formed in the adjusting plate (32), a sliding block (34) is connected in the sliding groove (321) in a sliding mode, the sliding block (34) is connected with the output shaft (33), and the driving cylinder (31) is used for driving the sliding block (34) to transversely move; The flange positioning mechanism (2) is arranged above the rotating mechanism (12), and the flange positioning mechanism (2) is provided with: Two groups of oppositely arranged arc plates (21), wherein the two groups of arc plates (21) are rotationally connected to the sliding block (34), the two groups of arc plates (21) penetrate through one side end, far away from the driving cylinder (31), of the adjusting plate (32), chucks (22) are arranged at the other ends of the two groups of arc plates (21), and the sliding block (34) moves and is suitable for driving the two groups of arc plates (21) and the chucks (22) to move; The support plate (23) is rotatably connected to one side of the adjusting plate (32), the upper side and the lower side of the support plate (23) are provided with baffle plates (233), two groups of baffle plates (233) are respectively provided with a clamping piece (24), and the two groups of clamping pieces (24) are used for supporting and fixing the flange plate (14); A connecting ring (35) is arranged at one side end of the sliding block (34) close to the driving cylinder (31), the connecting ring (35) is sleeved on the output shaft (33), a magnet ring is fixedly arranged on the outer wall of the output shaft (33), a magnet is arranged on the inner wall of the connecting ring (35), the magnet and the magnet ring are attracted, and a reset spring is fixedly arranged between one side of the sliding block (34) close to the flange positioning mechanism (2) and the adjusting plate (32); The upper surface of the sliding block (34) is provided with a circulation guide groove, the circulation guide groove comprises a first sliding groove (341) vertically arranged on the sliding block (34), the upper end of the adjusting plate (32) is rotatably connected with a clamping rod (36), the other end of the clamping rod (36) is fixedly provided with a spring pin, and the spring pin is positioned in the first sliding groove (341); A second chute (343) is formed on one side of the first chute (341) close to the driving cylinder (31), a first arc angle (342) is formed at the joint of the second chute (343) and the first chute (341), a third chute (345) is formed on one side of the second chute (343) far away from the first chute (341), and a second arc angle (344) is formed at the joint of the third chute (345) and the second chute (343); The depth of the first arc angle (342) is consistent with that of the second chute (343), the depth of the first chute (341) is smaller than that of the second chute (343) and forms a depth difference, a third chute (345) is arranged at the side of one end of the second chute (343) far away from the first chute (341), a second arc angle (344) is arranged at the joint of the third chute (345) and the second chute (343), the depth of the second arc angle (344) is consistent with that of the third chute (345), and the depth of the second chute (343) is smaller than that of the third chute (345) and forms a depth difference; A fourth chute (347) is formed in one side, far away from the second chute (343), of the third chute (345), the fourth chute (347) is divided into a first section of chute and a second section of chute, the depth of the fourth chute (347) gradually decreases from the first section of chute to the second section of chute, and a third arc angle (346) is formed at the joint of the fourth chute (347) and the third chute (345); the depth of the third arc angle (346) is consistent with the depth of a section of groove of the fourth sliding groove (347), the depth of the third sliding groove (345) is smaller than the depth of a section of groove of the fourth sliding groove (347) and forms a depth difference, two sections of grooves of the fourth sliding groove (347) are obliquely connected to the first sliding groove (341), and the depth of two sections of grooves of the fourth sliding groove (347) is smaller than the depth of the first sliding groove (341); the overall width of the chuck (22) is consistent with the transverse horizontal distance between the end of the first sliding groove (341) away from the first arc angle (342) and the third arc angle (346); The clamping piece (24) is provided with a screw rod (241) which is connected to the baffle plate (233) in a sliding manner, one end, close to the chuck (22), of the screw rod (241) is fixedly provided with a baffle plate (242), the other side of the baffle plate (242) is hinged with an adjusting wheel (243), a pressure spring (244) is fixedly arranged between the baffle plate (233) and the baffle plate (242), and the pressure spring (244) is sleeved on the outer side of the screw rod (241); A fixed block (245) is sleeved on the screw rod (241), a clamping plate (246) is fixedly arranged at one side end of the fixed block (245), an upper nut (247) and a lower nut (248) are connected to the screw rod (241) in a threaded manner, and the upper nut (247) and the lower nut (248) are respectively positioned at the upper side and the lower side of the fixed block (245); The distance between the adjusting wheel (243) and the baffle (233) is larger than the vertical height between the inner wall of the inner ring of the chuck (22) and the cambered surface of the chuck (22), and the distance between the clamping plate (246) and the inner wall of the flange plate (14) is consistent with the vertical height between the inner wall of the inner ring of the chuck (22) and the cambered surface of the chuck (22).
  2. 2. The welding fixture for the small-pipe-diameter flange according to claim 1, wherein the connecting pipe positioning mechanism (4) is provided with a supporting rod (41) rotatably connected to one side of the adjusting plate (32), the supporting rod (41) is positioned on the inner sides of the two groups of arc plates (21) and the chuck (22), and the supporting rod (41) is coaxially arranged with the two groups of arc plates (21) and the chuck (22); The novel support is characterized in that a second fixing ring (42) is fixedly arranged at the other end of the support rod (41), a threaded shaft sleeve (46) is connected to the support rod (41) in a sliding mode, a first fixing ring (45) is sleeved on the threaded shaft sleeve (46), a third nut (47) and a fourth nut (48) are connected to the threaded shaft sleeve (46) in a threaded mode, and the third nut (47) and the fourth nut (48) are respectively arranged on two sides of the first fixing ring (45).
  3. 3. The welding fixture for the small-pipe-diameter flange according to claim 2, wherein adjusting parts are respectively arranged on two sides of the first fixing ring (45) and the second fixing ring (42), each adjusting part is provided with a first rotating arm (441) hinged to one side of the second fixing ring (42), second rotating arms (444) are hinged to the same side of the first fixing ring (45), top plates (442) are arranged on the other sides of the first rotating arms (441) and the second rotating arms (444), the top plates (442) are arc-shaped, hinge columns (443) are fixedly arranged on the inner walls of the top plates (442), and the first rotating arms (441) and the second rotating arms (444) are in rotary connection with the hinge columns (443).
  4. 4. A small pipe diameter flange welding fixture according to claim 3, wherein the distance between said threaded sleeve (46) and said engaging member (24) is consistent with the width of said chuck (22), and the distance that said threaded sleeve (46) moves is consistent with the lateral horizontal distance of said first arc angle (342) and said third arc angle (346).

Description

Small-pipe-diameter flange welding tool Technical Field The application relates to the technical field of welding of small-pipe-diameter flanges, in particular to a small-pipe-diameter flange welding tool. Background In industrial pipeline installation (particularly in the fields of petrochemical industry, electric power, fine chemical industry, instrument pipelines and the like), small-diameter pipelines and flanges are usually required to be welded for convenient use. The small-pipe-diameter flange welding tool mainly adopts two welding modes, one is butt welding, namely one side is welded, specifically, the opposite faces of a pipeline and a flange are connected, and welding is carried out; The second type is welding the inner side and the outer side of the flange, namely welding the two sides, specifically inserting the pipeline into the socket hole of the flange, firstly welding the joint of the outer wall of the pipeline and the flange, and then welding the joint of the pipeline and the inner wall of the flange hole, thereby welding the two joint ends of the flange and the pipeline, and improving the sealing effect. When the two-side welding method is used for the flange, the flange is sleeved on the pipeline, but a gap is reserved between the flange and the pipeline, so that welding wires can smoothly enter the gap to enable the flange to be well combined with the pipeline. Therefore, the traditional welding mode generally uses a square and a feeler gauge to measure from three, six, nine and twelve o' clock positions of a flange, four welding spots with the same length and symmetry are measured, then a pipeline is sleeved with the flange, two workers are needed to cooperate, one person uses a vernier caliper or a micrometer to measure the perpendicularity and parallelism of the placement of the flange, the pipe diameter and the flange are ensured to be coaxial, then the pipeline and the flange are manually supported and fixed, and the other person uses a welding gun to weld and position the four welding spots first, and then the whole is welded. However, the conventional welding method has high requirement on experience of workers, and has complicated steps, the welding is performed after the fixed welding is performed, multiple adjustments may be needed in the middle, the rapid batch operation is difficult to realize, the pipe diameter and the flange are easy to be different due to large experimental operation errors, or the flange is inclined, and the subsequent adjustment is needed to influence the welding efficiency, so that the welding tool for the small-pipe-diameter flange is necessary to solve the problems. Disclosure of Invention According to one aspect of the application, a small-pipe-diameter flange welding tool is provided, so that the preparation steps before welding are reduced, the pipe diameter and the flange are ensured to be coaxially arranged, the situation that the flange is askew is avoided, and the rapid batch operation can be realized. The technical scheme adopted by the application for solving the technical problems is that the welding tool for the small-pipe-diameter flange is used for welding a corresponding connecting pipe and a flange plate, and comprises a base, wherein the base is provided with: The welding assembly comprises a two-axis adjusting structure and a welding gun arranged on the two-axis adjusting structure, and the two-axis adjusting structure is used for adjusting the position of the welding gun based on welding requirements; The workpiece adjusting assembly at least comprises a rotating mechanism, wherein the rotating mechanism is positioned at one side of the welding assembly and is used for supporting and driving the connecting pipe and the flange plate to be welded after being assembled to rotate during welding; The axial positioning adjusting assembly is located above the workpiece adjusting assembly and comprises an adjusting mechanism, a flange positioning mechanism and a connecting pipe positioning mechanism which are connected with each other, wherein the adjusting mechanism is used for coaxially linking the flange positioning mechanism and the connecting pipe positioning mechanism and is used for respectively carrying out positioning and supporting on the inside of the connecting pipe and the flange plate, so that the coaxial assembly of the flange positioning mechanism and the connecting pipe positioning mechanism is realized. Optionally, the adjusting mechanism includes: a drive cylinder having an output shaft; the adjusting plate and the driving cylinder are arranged above the base; the sliding groove is formed in the adjusting plate, a sliding block is connected in the sliding groove in a sliding mode, the sliding block is connected with the output shaft, and the driving cylinder is used for driving the sliding block to transversely move; the flange positioning mechanism is arranged above the rotating mechanism, and the flange positioning mecha