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CN-122007576-A - Automatic welding device and method based on roller machining

CN122007576ACN 122007576 ACN122007576 ACN 122007576ACN-122007576-A

Abstract

The invention discloses an automatic welding device and method based on roller processing, and relates to the technical field of roller welding processing. According to the invention, the sectional support piece is arranged, when the inner connecting ring moves towards the swivel, the straight toothed bar at the bottom of the second connecting plate moves downwards, in the process, the piston rod moves relative to the piston cylinder, so that the supporting plate and the first connecting plate at the lowest position are always in a flush state, the connecting block can drive the position pushing frame to move by rotating the first bidirectional screw rod, the distance between the adjacent second connecting frames can be adjusted, the distances between the first connecting frames and the second connecting frames and the distance between the adjacent second connecting frames are always equal, the rollers can be supported in sections according to the lengths of the rollers, the two ends of the rollers are prevented from bending under the action of gravity, and the accuracy of the abutting joint of the rollers and the connecting shafts is ensured.

Inventors

  • LI WENXIANG

Assignees

  • 东华隆（广州）表面改质技术有限公司

Dates

Publication Date
20260512
Application Date
20260413

Claims (10)

  1. 1. The utility model provides an automatic welding device based on roller processing, includes base (1), its characterized in that, connecting seat (2) are installed to the both sides of base (1), the top of connecting seat (2) is provided with three-jaw chuck (3), one side of three-jaw chuck (3) is provided with support frame (4), movable seat (5) are installed at the top of support frame (4), the bottom of movable seat (5) is connected with welding gun (6), the top of base (1) is provided with segmentation support piece, the top of base (1) is connected with holding ring (20) through segmentation support piece, the inboard of holding ring (20) is connected with swivel (21) through the bearing rotation, synchronous upset piece is installed to one end of swivel (21); The synchronous overturning piece comprises a second gear ring (22) arranged on the outer wall of a swivel (21) and located on one side of a positioning ring (20), one end of the swivel (21) is fixedly connected with a limiting rod (23), one end of the swivel (21) is provided with a second bidirectional screw (28) located below the limiting rod (23), the outer side of the second bidirectional screw (28) is sleeved with an inner connecting ring (24) in sliding connection with the limiting rod (23), the inner side of the inner connecting ring (24) is rotationally connected with a first inclined supporting frame (26) through a rotating shaft, and one end of the first inclined supporting frame (26) is rotationally connected with a first connecting plate (27) located on the inner side of the swivel (21) through the rotating shaft.
  2. 2. The automatic welding device based on roller processing according to claim 1, wherein the number of the first diagonal brackets (26) is plural, the first diagonal brackets (26) are equidistantly distributed along the center of the inner ring (24), and the center of the positioning ring (20) is coaxial with the center of the inner ring (24).
  3. 3. The automatic welding device based on roller processing according to claim 1, wherein the synchronous turning piece comprises a rotary inserting rod (8) installed on one side of a supporting frame (4), two ends of the rotary inserting rod (8) are rotatably connected with the supporting frame (4) through bearings, a second driven rotating gear (11) meshed with a second gear ring (22) is fixedly connected to the rotary inserting rod (8), a first driven rotating gear (9) located on two sides of the second driven rotating gear (11) is sleeved on the rotary inserting rod (8), a double-ring connecting frame (10) located on the outer side of one end of a three-jaw chuck (3) is arranged at one end of the first driven rotating gear (9), and a first gear ring (7) connected with the three-jaw chuck (3) and meshed with the first driven rotating gear (9) is arranged on one side of the double-ring connecting frame (10).
  4. 4. A roller machining based automatic welding device according to claim 3, characterized in that the second gear ring (22) is of equal diameter as the first gear ring (7), the second secondary gear (11) and the first secondary gear (9).
  5. 5. The automatic welding device based on roller machining according to claim 3, wherein the first secondary rotating gear (9) and the first gear ring (7) are both rotatably connected with the double-ring connecting frame (10) through bearings, and a through hole matched with the rotary inserted rod (8) is formed in the inner side of the first secondary rotating gear (9).
  6. 6. The automatic welding device based on roller processing according to claim 3, wherein the sectional support piece comprises a limiting slide rail (12) arranged at the top of the base (1), a first bidirectional screw rod (13) penetrating through the other side of the limiting slide rail (12) is arranged at one side of the limiting slide rail (12), a connecting block (14) is movably sleeved on the first bidirectional screw rod (13), a pushing frame (16) is arranged at the top of the connecting block (14), a C-shaped sliding block (17) is connected at the inner side of the pushing frame (16) in a sliding manner, one end of the C-shaped sliding block (17) is rotatably connected with a hinged frame (18) positioned above the limiting slide rail (12) through a rotating shaft, a plurality of limiting guide blocks (41) are connected at the inner side of the limiting slide rail (12), the top of the limiting guide blocks (41) is connected with a hinged point of the hinged frame (18), a first connecting frame (15) positioned above the hinged frame (18) is movably sleeved on the top of the limiting guide blocks (41), a positioning ring (20) is arranged at the top of the center of the hinged frame (18), an inner side of the first connecting frame (25) is connected with an outer side of the hinged frame (25) through a rotating shaft, an outer side of the first connecting ring (25) is connected with the outer side of the hinged frame (25) through a rotating shaft, one end of second diagonal brace (29) is connected with second link plate (30) with first link frame (15) sliding connection, the bottom of second link plate (30) is provided with straight rack (32) that are located first link frame (15) inboard, the inboard of first link frame (15) is connected with first drive gear (33) with straight rack (32) meshing through the pivot rotation, the top of spacing guide block (41) is provided with second link frame (19) that are located first link frame (15) both sides, piston cylinder (37) are installed in the outside of second link frame (19), the bottom of piston cylinder (37) is provided with solenoid valve (39), the inside grafting of piston cylinder (37) has piston rod (38) that extends to piston cylinder (37) top, the top of piston rod (38) is provided with movable rack (36) with second link frame (19) sliding connection, jack-up frame (40) are installed at the top of movable rack (36), jack-up frame (40) top is provided with second link frame (19) both sides, second link frame (35) are installed through the pivot (35) and second link plate (35) is connected with second link plate (35) transmission that rotates And a hexagonal connecting rod (31) of the first transmission gear (33).
  7. 7. An automatic welding device based on roller processing according to claim 6, characterized in that the top of the pallet (34) is equal to the level of the top of the first connecting plate (27) at the lowest inside the swivel (21).
  8. 8. The automatic welding device based on roller processing according to claim 6, wherein the number of the first transmission gears (33) and the second transmission gears (35) is two, the straight rack (32) is located between the two first transmission gears (33), and the movable rack (36) is located outside the two second transmission gears (35).
  9. 9. An automatic welding device based on roller processing according to claim 6, characterized in that the first (26) and second (29) diagonal brackets are of equal length.
  10. 10. An automatic welding method based on roller processing, characterized in that an automatic welding device based on roller processing according to any one of claims 1-9 is used, comprising the steps of: s1, firstly, a roller to be processed passes through a swivel (21) so that the central section of the roller is positioned at the inner side of a positioning ring (20); S2, rotating the second bidirectional screw rod (28) to enable the inner connecting ring (24) to move towards the swivel (21) along the second bidirectional screw rod (28), so that the inner connecting ring (24) extrudes one end of the first inclined support (26), the other end of the first inclined support (26) pushes the first connecting plate (27) to move towards the center of the swivel (21), and the first connecting plate (27) can clamp and fix the roller; S3, supporting the roller in a segmented manner through a segmented supporting piece, fixing the connecting shaft through a three-jaw chuck (3), and enabling one end of the connecting shaft to be attached to one end of the roller through horizontal movement of the three-jaw chuck (3); And S4, realizing the welding fixation of the connecting shafts and the rollers through the cooperation of the movable seat (5) and the welding gun (6), and realizing the transposition of the welding gun (6) through the movement of the welding gun (6) driven by the movable seat (5) after one of the connecting shafts is welded, so that the welding gun (6) is welded and fixed on the connecting shaft positioned at the other end of the roller.

Description

Automatic welding device and method based on roller machining Technical Field The invention relates to the technical field of roller welding processing, in particular to an automatic welding device and method based on roller processing. Background Plasma arc welding refers to a fusion welding method using a high energy density beam of plasma arcs as a welding heat source. The gas is dissociated by arc heating, compressed when passing through the water cooling nozzle at high speed, the energy density and dissociation degree are increased, and a plasma arc is formed, so that the plasma arc welding is a core process for realizing coaxial precision welding of the connecting shaft and the roller in roller processing, and the circular seam welding of the roller and the connecting shaft is completed by virtue of the advantages of high energy density and high penetration of the plasma arc, and the welding device has the characteristics of small welding deformation, excellent welding seam forming and high joint strength. Before welding operation, the roller and the connecting shaft are required to be clamped coaxially through the double-end centering tool, then the end face of the connecting shaft is contacted with the end face of the roller through the movement of the three-jaw chuck, and in the process, due to the fact that the length of the roller is long, the middle part of the roller is only supported when the roller is supported and positioned, deflection sagging of two ends of the roller occurs under the action of gravity of the roller, dislocation of the axis of the connecting shaft of the axis of the roller can be caused, and at the moment, the accuracy of butt joint can be influenced when the roller is in butt joint with the connecting shaft. Disclosure of Invention The invention aims to solve the problem that the welding effect of a roll shaft and a connecting shaft is affected due to the fact that a slender roll shaft is easy to sag, and provides an automatic welding device and method based on roll machining. The automatic welding device based on roller machining comprises a base, wherein connecting seats are arranged on two sides of the base, a three-jaw chuck is arranged at the top of the connecting seats, a supporting frame is arranged on one side of the three-jaw chuck, a movable seat is arranged at the top of the supporting frame, a welding gun is connected to the bottom of the movable seat, a segmented supporting piece is arranged at the top of the base, a positioning ring is connected to the top of the base through the segmented supporting piece, a rotating ring is connected to the inner side of the positioning ring through a bearing in a rotating mode, and a synchronous overturning piece is arranged at one end of the rotating ring; The synchronous overturning piece comprises a second gear ring which is arranged on the outer wall of the swivel and is positioned on one side of the positioning ring, a limiting rod is fixedly connected to one end of the swivel, a second bidirectional screw rod positioned below the limiting rod is arranged at one end of the swivel, an inner connecting ring which is slidably connected with the limiting rod is sleeved on the outer side of the second bidirectional screw rod, a first inclined strut is rotatably connected to the inner side of the inner connecting ring through a rotating shaft, and a first connecting plate positioned on the inner side of the swivel is rotatably connected to one end of the first inclined strut through the rotating shaft. As a still further proposal of the invention, a plurality of first diagonal brackets are arranged, and the first diagonal brackets are distributed equidistantly along the circle center of the inner connecting ring, and the circle center of the positioning ring is coaxial with the circle center of the inner connecting ring. As a still further scheme of the invention, the synchronous turning piece comprises a rotary inserting rod arranged on one side of a supporting frame, two ends of the rotary inserting rod are rotatably connected with the supporting frame through bearings, a second auxiliary rotating gear meshed with a second gear ring is fixedly connected to the rotary inserting rod, first auxiliary rotating gears positioned on two sides of the second auxiliary rotating gear are sleeved on the rotary inserting rod, a double-ring connecting frame positioned on the outer side of one end of a three-jaw chuck is arranged at one end of the first auxiliary rotating gear, and a first gear ring connected with the three-jaw chuck and meshed with the first auxiliary rotating gear is arranged on one side of the double-ring connecting frame. In a still further aspect of the present invention, the diameters of the second gear ring and the first gear ring, and the diameters of the second driven gear and the first driven gear are equal. As a still further scheme of the invention, the first secondary rotating gear and the first gear ring