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CN-122007573-A - Steel plate alignment welding device and process

CN122007573ACN 122007573 ACN122007573 ACN 122007573ACN-122007573-A

Abstract

The invention discloses a steel plate alignment welding device and a steel plate alignment welding process, and particularly relates to the technical field of steel plate welding, wherein the steel plate alignment welding device comprises a U-shaped stand, a storage cabinet fixedly connected to one side of the U-shaped stand, an electric welding machine arranged on the inner side of the storage cabinet and a welding gun matched with the electric welding machine, brackets rotatably connected to two ends of the inner side of the U-shaped stand, rectangular frames fixedly connected between the two brackets, N-shaped frames symmetrically arranged on two sides above the rectangular frames, a placing plate fixedly connected to the N-shaped frames, a blocking plate fixedly connected to one side of the upper end of the placing plate, an extrusion plate movably arranged on the other side of the upper end of the placing plate, a pushing mechanism arranged on the N-shaped frames and a centering positioning mechanism arranged on the rectangular frames. According to the invention, through the cooperative matching of the mechanisms, the problems of insufficient alignment precision, irregular gap adjustment and the like in the steel plate welding process are effectively solved, the alignment precision and the welding quality are improved, the operation cost is reduced, and the overall effect of the steel plate butt welding is comprehensively improved.

Inventors

  • ZHOU YI

Assignees

  • 象山政新金属制品有限公司

Dates

Publication Date
20260512
Application Date
20260408

Claims (10)

  1. 1. A steel plate alignment welding device is characterized by comprising a U-shaped stand (1), chu Nagui (2) fixedly connected to one side of the U-shaped stand (1), an electric welding machine (3) arranged on the inner side of a storage cabinet (2) and a welding gun (4) matched with the electric welding machine, brackets (5) rotatably connected to two ends of the inner side of the U-shaped stand (1), a rectangular frame (10) fixedly connected between the two brackets (5), N-shaped frames (12) symmetrically arranged on two sides above the rectangular frame (10), a placing plate (13) fixedly connected to the N-shaped frames (12), a blocking plate (15) fixedly connected to one side of the upper end of the placing plate (13), a squeezing plate (16) movably arranged on the other side of the upper end of the placing plate (13), a pushing mechanism arranged on the N-shaped frames (12) and a centering positioning mechanism arranged on the rectangular frame (10), wherein the output end of the pushing mechanism is connected with the corresponding squeezing plate (16), the pushing mechanism is used for driving the squeezing plate (16) to move on the placing plate (13), the squeezing plate (16) and the two opposite centering positioning mechanisms are used for connecting the two opposite centering positioning mechanisms (12) to the N-shaped steel plates (13), a rectangular groove (14) is formed in the middle of the placing plate (13); Two alignment plates (17) are arranged above the rectangular frame (10), and the two alignment plates (17) are symmetrically arranged by taking the symmetrical central lines of the two placement plates (13) as axes; And an identification unit is arranged above the welding device and is used for detecting the width value of the welding seam between the two steel plates.
  2. 2. The steel plate alignment welding device according to claim 1, wherein each group of pushing mechanisms comprises a threaded rod (601) rotatably connected to the inner side of the N-type frame (12), a pushing plate (602) in threaded connection with the outer side of the threaded rod (601), a first rotary table (603) rotatably connected to the outer side of the N-type frame (12) and a first holding rod (604) fixedly connected to the first rotary table (603), the upper end of the pushing plate (602) penetrates through the rectangular groove (14) and is fixedly connected with the extrusion plate (16), and the first rotary table (603) is fixedly connected with the threaded rod (601) through a shaft.
  3. 3. The steel plate alignment welding device according to claim 1, wherein the centering mechanism comprises a bidirectional screw (701) rotatably connected to the inner side of the rectangular frame (10), a movable plate (702) symmetrically screwed to the outer sides of two ends of the bidirectional screw (701), an auxiliary frame (703) fixedly connected between one side support (5) and the rectangular frame (10), a first conical gear (704) rotatably connected to the rectangular frame (10), a rotating rod (706) rotatably connected to the inner side of the auxiliary frame (703), a second conical gear (705) rotatably connected to one end of the outer side of the auxiliary frame (703), a second rotary table (707) rotatably connected to the other end of the outer side of the auxiliary frame (703) and a second holding rod (708) fixedly connected to the second rotary table (707), the two movable plates (702) are fixedly connected to the two N-type frames (12) respectively, the first conical gear (704) is fixedly connected to the bidirectional screw (701) through a shaft, the second conical gear (705) is fixedly connected to the rotating rod (706) through a shaft, the first conical gear (704) is meshed with the second conical gear (705), and the second rotary table (707) is fixedly connected to the rotating rod (706) through a shaft.
  4. 4. The steel plate alignment welding device according to claim 1, wherein a lifting mechanism is arranged on the rectangular frame (10), the output end of the lifting mechanism is connected with the two alignment plates (17), and the lifting mechanism is used for driving the two alignment plates (17) to move up and down; The lifting mechanism comprises a first mounting block (801) fixedly connected to the rectangular frame (10), a lifting air cylinder (802) penetrating through the first mounting block (801), a lifting plate (803) fixedly connected to the output end of the lifting air cylinder (802), a connecting plate (804) fixedly connected to the lifting plate (803) and a cross reinforcing plate (805) fixedly connected to the connecting plate (804), wherein the lifting air cylinder (802) is used for driving the lifting plate (803) to move up and down, and two alignment plates (17) are fixedly connected to two sides of the cross reinforcing plate (805).
  5. 5. The steel plate alignment welding device according to claim 1, wherein two fixing rods (21) are symmetrically and fixedly connected to the inner side of the rectangular frame (10), sliding blocks (22) are symmetrically and movably connected to the outer side of each fixing rod (21), and each sliding block (22) is fixedly connected to the bottom of the corresponding N-type frame (12).
  6. 6. The steel plate alignment welding device according to claim 5, wherein a second mounting block (23) is fixedly connected to a fixing rod (21) close to one side of the two blocking plates (15), a rotating column (24) is rotatably connected to the second mounting block (23), a disc (25) is fixedly connected to the rotating column (24), and one end of the disc (25) is fixedly connected to one end of the reference strip plate (18).
  7. 7. The steel plate alignment welding device according to claim 6, wherein a reference strip plate (18) is arranged above the rectangular frame (10) and near one side of the two blocking plates (15), the height of the upper surface of the reference strip plate (18) is equal to that of the upper surface of the placing plate (13), the reference strip plate (18) is provided with a bidirectional scale, a zero scale line of the bidirectional scale is collinear with the symmetrical central lines of the two placing plates (13), and scale values at two sides of the zero scale line are sequentially increased towards opposite directions; A toggle piece (26) is fixedly connected to the disc (25), magnet pieces (27) are fixedly connected to two sides of the toggle piece (26), two vertical plates (28) which are vertically distributed are fixedly connected to the second mounting block (23), a positioning block (29) is fixedly connected to the vertical plates (28), and a magnetic suction plate (30) is fixedly connected to the positioning block (29); When the reference strip plate (18) rotates to be perpendicular to the symmetrical center line of the two placing plates (13), the magnet sheet (27) on one side is adsorbed with the magnetic adsorption plate (30); When the reference strip plate (18) rotates to be parallel to the symmetrical center line of the two placing plates (13), the magnet sheet (27) on the other side is adsorbed with the other magnetic adsorption plate (30).
  8. 8. The steel plate alignment welding device according to claim 1, wherein the identification unit comprises an image acquisition component, a data processing module, an alarm execution component and a display component, the image acquisition component adopts a high-definition industrial camera, the high-definition industrial camera is installed on a top support of the U-shaped stand 1, a lens faces downwards to a welding gap area of two steel plates, a shooting view angle of the camera covers the whole welding gap length and is used for acquiring image information of a joint of the two steel plates in real time, the data processing module is electrically connected with the camera, the alarm execution component comprises an alarm, the alarm is in signal connection with the data processing module, and the display component adopts an embedded touch screen display and is also connected with the data processing module.
  9. 9. The steel plate alignment welding device according to claim 1, wherein the upper ends of each blocking plate (15) and each extruding plate (16) are fixedly connected with the same fixing plate (11), and each fixing plate (11) is provided with a pressing mechanism; Each group of pressing mechanisms comprises a threaded column (901) which is connected with the fixed plate (11) in a threaded penetrating way, a pressing plate (902) which is connected with the bottom of the threaded column (901) in a rotating way and a knob (903) which is fixedly connected with the top of the threaded column (901); And Chu Nagui (2) is fixedly provided with a speed reducing motor (19) and a controller (20) which are electrically connected with each other, the output end of the speed reducing motor (19) is fixedly connected with the bracket (5) on the corresponding side, the speed reducing motor (19) is used for driving the bracket (5) to rotate, and the controller (20) is provided with a control pivot for starting and closing the speed reducing motor (19).
  10. 10. A steel plate alignment welding process, characterized in that any one of the steel plate alignment welding devices described in claim 1 is adopted, and the steps are as follows: S1, initializing the device, driving the two N-type frames (12) to be relatively far away through the centering positioning mechanism, ensuring enough space between the placing plates (13), enabling the pushing mechanism (6) to be in a contracted state, and ensuring proper distance between the extruding plates (17) and the blocking plates (15); S2, respectively placing two steel plates to be welded on the corresponding placing plates (13), and attaching the blocking plates (15) to finish preliminary positioning; s3, starting a pushing mechanism (6) to drive the extrusion plate (17) to move towards the blocking plate (15) so as to clamp and fix the steel plate and prevent deflection; S4, adjusting the position of the N-type frame (12) through a centering positioning mechanism, reserving welding gaps meeting specifications, and finishing alignment; s5, welding along the welding line by using a welding gun (4), closing the equipment after the welding is completed, loosening the extrusion plate (17), and taking out the welded steel plate; S6, if the cut groove of the steel plate is not inclined and level, starting an identification unit, detecting the flatness of the groove of the steel plate and the weld joint gap, and screening out the maximum gap point; and S7, finely adjusting a centering positioning mechanism according to the detection data of the identification unit, ensuring the uniform gap of the welding seam, avoiding local deviation, and then executing subsequent welding and ending operation.

Description

Steel plate alignment welding device and process Technical Field The invention relates to the technical field of steel plate welding, in particular to a steel plate alignment welding device and a steel plate alignment welding process. Background The steel plate is a core basic component in the industries of construction, machinery manufacturing, automobiles, ships and the like, the butt welding quality directly determines the structural stability and the service life of a product, the butt welding is used as a key working procedure for processing the steel plate, and the core is to realize the accurate positioning and stable welding of the steel plate to be welded so as to ensure the quality of a welding seam and improve the efficiency and meet the requirements of modern industrial scale and high precision. At present, manual arc welding, gas shielded welding, submerged arc welding and other methods are commonly used for butt joint of steel plates, and the welding gun and the welding machine are used for cooperative operation, wherein the manual arc welding is powered by the electric welding machine to generate arc melting welding rods and base materials, the welding gun clamps the welding rods and controls operation parameters by personnel, the gas shielded welding is powered by the electric welding machine, the welding gun sprays protective gas to avoid oxidation of a molten pool and align to a groove, the submerged arc welding adopts high current, and the welding gun is embedded into a flux layer to finish welding, so that the method is suitable for batch processing of thick steel plates. The smooth implementation of the welding methods depends on accurate alignment of the steel plates, proper specification gaps are required to be regulated between the two steel plates according to the thickness of the steel plates for welding, when the regulated gaps are too large, ceramic gaskets are required to be stuck at the back gaps of the two steel plates, so that molten iron burning through and dripping are avoided, and otherwise, the welding quality is directly influenced. The problems of insufficient butt joint precision in the existing steel plate alignment welding technology are particularly remarkable, and the problems are that firstly, an alignment reference is not clear, the traditional visual inspection or simple scale positioning which is more dependent on a welder master is lack of a reliable reference, the center line alignment deviation and the groove gap of a steel plate are easy to cause uneven welding seam penetration, the positioning stability is relatively poor, a simple cushion block or a temporary fixture cannot rigidly fix the steel plate, thermal deformation caused by high temperature of an electric arc, welding gun vibration and shrinkage force of a molten pool can cause the displacement of the steel plate to generate offset, the welding seam strength is obviously reduced after the offset, secondly, the precision adjustment difficulty is high, the existing mode cannot quantitatively adjust and lock a reserved gap, the gap is too small to easily cause root incomplete penetration, the defect of burning through and the like is easily caused when the gap is too large, the subsequent correction process not only increases the cost, but also can damage the structural precision of the steel plate. In summary, in order to improve the quality and efficiency of butt welding of steel plates, the requirements of modern industrial large-scale and high-precision processing are met, and the problems of insufficient butt welding precision caused by undefined reference, poor stability and incapability of quantitatively adjusting and locking gaps in the conventional steel plate alignment welding are required to be solved, so that the steel plates to be welded can be aligned accurately, the gaps are stable and controllable, the welding seam forming quality is ensured, the processing cost is reduced, and the welding seam strength is improved. Disclosure of Invention The invention provides a steel plate alignment welding device and a steel plate alignment welding process, which aim to solve the problems of insufficient butting precision caused by undefined datum, poor stability and incapability of quantitatively adjusting and locking gaps in the existing steel plate alignment welding. The steel plate alignment welding device comprises a U-shaped stand, a storage cabinet fixedly connected to one side of the U-shaped stand, an electric welding machine arranged on the inner side of the storage cabinet, a welding gun matched with the electric welding machine, brackets rotatably connected to two ends of the inner side of the U-shaped stand, rectangular frames fixedly connected between the two brackets, N-shaped frames symmetrically arranged on two sides above the rectangular frames, a placing plate fixedly connected to the N-shaped frames, a blocking plate fixedly connected to one side of the upper end of the placing