阅读说明：本技术 一种钢板埋弧焊焊接设备及其方法 (Steel plate submerged arc welding equipment and method thereof ) 是由 徐晨晨 朱良彬 于 2021-09-17 设计创作，主要内容包括：本发明涉及焊接设备技术领域,具体的说是一种钢板埋弧焊焊接设备及其方法；包括底座、焊接枪、夹具、移动块、驱动单元和控制器；所述L形块在同一块支撑板上的数量为两个,L形块能够阻挡钢板；所述支撑板铰接有L形块的端面上设置有滑动槽；所述滑动槽内滑动连接有台阶块；所述台阶块能够阻挡L形块转动；本发明通过控制两个液压杆分别伸出和收缩,再控制两个支撑板相互靠近,从而达到其中一个支撑板上的钢板接触到另一个支撑板上的钢板中部的目的,使得两块钢板能够焊接成T形；再通过控制器调节两个液压杆的伸出和收缩程度,能够改变两块钢板之间的夹角,焊接出不同角度的两块钢板,提升了本发明的使用效果,再次提升了本发明的使用效果。(The invention relates to the technical field of welding equipment, in particular to steel plate submerged arc welding equipment and a method thereof; the welding gun welding device comprises a base, a welding gun, a clamp, a moving block, a driving unit and a controller; the number of the L-shaped blocks on the same supporting plate is two, and the L-shaped blocks can block the steel plate; a sliding groove is formed in the end face, in which the supporting plate is hinged with the L-shaped block, of the supporting plate; a step block is connected in the sliding groove in a sliding manner; the step block can block the L-shaped block from rotating; the two hydraulic rods are controlled to extend out and contract respectively, and the two supporting plates are controlled to be close to each other, so that the purpose that the steel plate on one supporting plate is in contact with the middle of the steel plate on the other supporting plate is achieved, and the two steel plates can be welded into a T shape; and the extension and contraction degrees of the two hydraulic rods are adjusted through the controller, so that the included angle between the two steel plates can be changed, the two steel plates with different angles are welded, the using effect of the welding machine is improved, and the using effect of the welding machine is improved again.)

1. A steel plate submerged arc welding device comprises a base (1), a welding gun (2), a clamp (3), a moving block (4), a driving unit (5) and a controller; the driving unit (5) comprises a screw rod and a driving motor; the number of the moving blocks (4) is two, and two supporting rods (41) are fixedly connected to the two moving blocks (4); the other ends of the two corresponding support rods (41) are hinged with the same support plate (42); the method is characterized in that: hydraulic rods (43) are hinged to the two moving blocks (4); the hydraulic rods (43) are positioned between the two corresponding supporting rods (41), and the other ends of the hydraulic rods (43) are hinged with the corresponding supporting plates (42); the end surfaces of the two supporting plates (42) which are hinged with the hydraulic rod (43) are hinged with L-shaped blocks (44); the number of the L-shaped blocks (44) on the same supporting plate (42) is two, and the L-shaped blocks (44) can block the steel plate; a sliding groove (45) is formed in the end face of the support plate (42) hinged with the L-shaped block (44); a step block (46) is connected in the sliding groove (45) in a sliding manner; the number of the step blocks (46) in the corresponding sliding grooves (45) is two, the two step blocks (46) correspond to the two L-shaped blocks (44), and the step blocks (46) can fix the L-shaped blocks (44) when the L-shaped blocks (44) are in contact with the steel plate.

2. The steel plate submerged arc welding apparatus according to claim 1, characterized in that: one end of the L-shaped block (44) far away from the hinged position with the support plate (42) is provided with a through groove (7) and a thread groove (71); an adjusting block (72) is connected in the through groove (7) in a sliding manner; both ends of the adjusting block (72) are exposed out of the through groove (7), and size scales are carved on the adjusting block (72); the thread groove (71) is perpendicular to the through groove (7), one end of the thread groove (71) is communicated with the through groove (7), the other end of the thread groove (71) penetrates through the L-shaped block (44), a threaded rod (73) is connected to the thread groove (71) in an internal thread mode, and the threaded rod (73) abuts against the outer wall of the adjusting block (72).

3. A steel plate submerged arc welding apparatus according to claim 2, characterized in that: the section of the clamp (3) is in a shape of '21274', and a thread groove (71) is formed in one end face, far away from the base (1), of the clamp (3); the thread groove (71) penetrates through the clamp (3), and a threaded rod (73) is connected with the thread groove (71) in a threaded manner; one end of the threaded rod (73) is exposed out of the threaded groove (71), and the threaded rod (73) can fix the steel plate.

4. A steel plate submerged arc welding apparatus according to claim 3, characterized in that: a gap of 5cm is reserved between one end of each L-shaped block (44) far away from the hinged position of the support plate (42) and the support plate (42), and the gaps between different L-shaped blocks (44) and the corresponding support plates (42) are equal.

5. A steel plate submerged arc welding apparatus according to claim 4, characterized in that: preferably, the length direction of the sliding groove (45) is the same as the connecting line direction between two corresponding L-shaped blocks (44); the step block (46) is capable of fixing the L-shaped block (44) when the L-shaped block (44) is not in contact with the steel plate.

6. A steel plate submerged arc welding method which is applied to a steel plate submerged arc welding apparatus according to any one of claims 1 to 5, characterized in that: the welding method comprises the following steps:

s1: the staff rotates the L-shaped block (44) and closes to the support plate (42), and then slides the step block (46), so that the step block (46) blocks the L-shaped block (44); the staff adjusts the adjusting blocks (72) to enable the exposed lengths of all the adjusting blocks (72) to be the same, and then the staff puts the two steel plates on the two supporting plates (42) respectively to adjust the positions of the steel plates;

s2: a worker loosens the clamp (3) and adjusts the position of the clamp (3) to enable the clamp (3) to avoid the position of the welding line, and then screws the clamp (3); the worker reversely slides the step block (46) after the steel plate is fixed, reversely rotates the L-shaped block (44), and then slides the step block (46) again to fix the L-shaped block (44);

s3: a worker controls the driving unit (5) and the hydraulic rod (43) through the controller to adjust the position of the supporting plate (42) and adjust the positions of the two steel plates to a proper angle;

s4: the welding gun is controlled to flow out of welding flux and electrify the welding wire, so that the welding gun (2) is controlled to weld the two steel plates, the worker loosens the clamp (3) after the steel plates are cooled, the steel plates are taken down, and submerged arc welding of the steel plates is completed.

Technical Field

The invention relates to the technical field of welding equipment, in particular to steel plate submerged arc welding equipment and a method thereof.

Background

Submerged arc welding is a method for welding by burning an electric arc under a flux layer, and has the advantages of stable welding quality, high welding productivity, no arc light, little smoke and the like; when two steel plates are welded, workers often need to adjust the angle between the two steel plates to complete welding of a welding part on an engineering drawing; the angle between the two steel plates is manually adjusted, time and labor are wasted, and the precision cannot meet the requirement, so the steel plates are generally placed on a support frame in the prior art, and the angle between the two steel plates is adjusted by adopting a support frame adjusting mode; the angle between two steel sheets can be realized in the prior art, but two steel sheets cannot be placed into a T shape, and the included angle between the steel sheets is changed, so that when the two steel sheets are welded into the T shape, manual operation is required, and the steel sheets are very inconvenient.

For example, a chinese patent with application number CN202011128631.3 discloses a submerged arc welding system and a welding method, which can replace manual automatic adjustment of the gap size of the weld; the welding gun welding device comprises an auxiliary supporting mechanism, a welding line adjusting mechanism, a working supporting mechanism, a welding gun height adjusting mechanism, an inclined supporting mechanism, a clamping and fixing mechanism and a welding line forming groove, and the method comprises the following steps: the method comprises the following steps: two steel plates to be welded slide to two bearing plates by virtue of force of a plurality of follower rollers respectively; step two: the four pushing plates respectively push the two steel plates from the left end and the right end to the middle to adjust the size of a welding seam between the two steel plates, the front end and the rear end of the two steel plates are respectively clamped by the four clamping plates according to the thickness of the steel plates to achieve the optimal size of the welding seam, the steel plates are prevented from being deviated, and meanwhile, the four pressing blocks respectively press and fix the two steel plates on the two bearing plates; step three: starting a submerged arc welding machine, and welding a welding seam with the optimal size between the two steel plates; but this technical scheme only can change the interval between two steel sheets and adjust the welding seam, can not change the contained angle between two steel sheets, can not make two steel sheet welding interface aim at and the parallel and level when the centre gripping steel sheet simultaneously, and then causes the limitation of this scheme.

In view of the above, in order to overcome the above technical problems, the present invention provides a steel plate submerged arc welding apparatus and a method thereof, which solve the above technical problems.

Disclosure of Invention

In order to make up for the defects of the prior art, the steel plate submerged arc welding equipment and the method thereof provided by the invention have the advantages that the purpose that the steel plate on one supporting plate is contacted with the middle part of the steel plate on the other supporting plate is achieved by controlling the two hydraulic rods to respectively extend out and contract and controlling the two supporting plates to mutually approach, so that the two steel plates can be welded into a T shape, the extending and contracting degrees of the two hydraulic rods are adjusted by the controller, the included angle between the two steel plates can be changed, the two steel plates with different angles are welded, and the using effect of the invention is improved; meanwhile, the positions of the steel plates are adjusted through the L-shaped blocks, so that the positions of welding ports of the two steel plates can be aligned when the two steel plates are welded, and the using effect of the welding device is improved again.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to steel plate submerged arc welding equipment which comprises a base, a welding gun, a clamp, a moving block, a driving unit and a controller, wherein the welding gun is arranged on the base; the number of the moving blocks is two, the two moving blocks are connected to two ends of the upper end face of the base in a sliding mode, and two supporting rods are fixedly connected to the two moving blocks; the other ends of the two corresponding support rods are hinged with the same support plate; hydraulic rods are hinged to the two moving blocks; the hydraulic rod is positioned between the two corresponding support rods, and the other end of the hydraulic rod is hinged with the corresponding support plate; the end surfaces of the two supporting plates hinged with the hydraulic rod are hinged with L-shaped blocks; the number of the L-shaped blocks on the same supporting plate is two, and the L-shaped blocks can block the steel plate; a sliding groove is formed in the end face, in which the supporting plate is hinged with the L-shaped block, of the supporting plate; a step block is connected in the sliding groove in a sliding manner; the number of the step blocks in the corresponding sliding grooves is two, the two step blocks correspond to the two L-shaped blocks respectively, and the step blocks can block the L-shaped blocks from rotating; the driving unit comprises a screw rod and a driving motor; the number of the driving motors is two, the two driving motors are arranged far away from each other, the driving motors are fixed on the base, and output shafts of the driving motors are fixedly connected with the screw rods; the screw rods are in threaded connection with the corresponding moving blocks; the two support plates are obliquely arranged in an initial state; the supporting plate is made of high-temperature-resistant materials, such as heat-resistant high-strength magnesium alloy;

when the steel plate adjusting device works, in the prior art, the steel plates are generally placed on the support frame, and the angle between the two steel plates is adjusted by adopting the mode of adjusting the support frame; although the angle between two steel plates can be realized in the prior art, the two steel plates cannot be arranged into a T shape, and the included angle between the steel plates is changed, so that manual operation is needed when the two steel plates are welded into the T shape, and the operation is very inconvenient;

therefore, when the L-shaped block is used by a worker, the L-shaped block is attached to the supporting plate, and then the step block slides towards the corresponding L-shaped block in the sliding groove, so that the extending end of the step block blocks the L-shaped block and fixes the L-shaped block; after all the L-shaped blocks are fixed, a worker places the two steel plates on the two corresponding supporting plates, so that the two steel plates slide downwards on the supporting plates under the action of gravity until the steel plates are in contact with the L-shaped blocks, and the positions of the sides of the steel plates to be welded are flush; after the position of the steel plate is adjusted, a worker fixes the clamp, so that the steel plate is fixed on the support plate by the clamp, the worker slides the step block towards the opposite direction, the step block cannot continuously block the L-shaped block, and the worker rotates the L-shaped block in the opposite direction, so that the L-shaped block does not block the steel plate when the steel plate is welded; when a worker welds two steel plates into a straight line, the worker controls the hydraulic rod to extend out through the controller, so that the end faces, close to each other, of the two support plates are jacked up by the hydraulic rod, the support plates rotate around the positions hinged with the support rods until the positions of the two support plates are kept in a horizontal state, at the moment, the worker controls the driving unit to drive the two driving motors to rotate through the controller, so that the two support plates are close to each other under the driving of the two spiral rods through the driving motors until the two support plates are contacted, the worker controls the mechanical arm to drive the welding gun to move through the controller, the controller controls the welding gun to flow out welding flux after the welding gun reaches the position, and controls the welding wire to be electrified, so that the submerged arc welding gun is controlled to weld the two steel plates; when two steel plates are welded into a T shape, a worker controls one hydraulic rod to contract through the controller, so that the inclination degree of the support plate is increased, then controls the other hydraulic rod to extend out, reduces the inclination degree of the other support plate, controls the driving unit through the controller, enables the two support plates to approach until the steel plate on the support plate with relatively small inclination degree contacts the middle part of the steel plate on the support plate with relatively large inclination degree, and controls the submerged arc welding gun to weld the two steel plates through the controller; the controller is used for adjusting the extension and contraction degrees of the two hydraulic rods, so that the included angle between the two steel plates can be changed, and the two steel plates with different angles can be welded;

the two hydraulic rods are controlled to extend out and contract respectively, and the two supporting plates are controlled to be close to each other, so that the purpose that the steel plate on one supporting plate is in contact with the middle of the steel plate on the other supporting plate is achieved, and the two steel plates can be welded into a T shape; the controller is used for adjusting the extension and contraction degrees of the two hydraulic rods, so that the included angle between the two steel plates can be changed, the two steel plates with different angles are welded, and the using effect of the welding machine is improved; meanwhile, the positions of the steel plates are adjusted through the L-shaped blocks, so that the positions of welding ports of the two steel plates can be aligned when the two steel plates are welded, and the using effect of the welding device is improved again.

Preferably, one end of the L-shaped block, which is far away from the hinged position with the support plate, is provided with a through groove and a thread groove; an adjusting block is connected in the through groove in a sliding manner; both ends of the adjusting block are exposed out of the through grooves, and size scales are carved on the adjusting block; the thread groove is perpendicular to the through groove, one end of the thread groove is communicated with the through groove, the other end of the thread groove penetrates through the L-shaped block, a threaded rod is connected with the thread groove in a threaded manner, and the threaded rod abuts against the outer wall of the adjusting block;

when the adjustable support rod works, a worker twists a threaded rod in front of a steel plate on a support plate, the threaded rod is unscrewed, then the worker slides an adjusting block towards the direction close to a corresponding support rod, the worker adjusts the sliding distance of the adjusting block according to the thickness of the steel plate, the thicker the thickness of the steel plate is, the longer the length of the adjusting block, which is exposed out of an L-shaped block, close to one end of the support rod is, the length is not more than 5mm, and the worker screws the threaded rod after adjusting the adjusting block, so that the position of the adjusting block is fixed; after all the adjusting blocks are fixed, a worker puts the steel plate on the supporting plate, so that the steel plate slides under the action of gravity until the steel plate is contacted with the adjusting blocks; the worker clamps the clamp on the steel plate, adjusts the supporting plate and starts welding;

according to the invention, the length of the L-shaped block is exposed by the sliding adjusting block, so that the welding seam between the two steel plates is adjusted when the two steel plates are welded, the penetration rate of the welded part is improved after the steel plates are welded, and the using effect of the welding device is improved again.

Preferably, the cross section of the clamp is in a shape of a letter 21274, and one end face, far away from the base, of the clamp is provided with a threaded groove; the thread groove penetrates through the clamp, and a threaded rod is connected with the thread groove in an internal thread manner; one end of the threaded rod is exposed out of the threaded groove, and the steel plate can be fixed by the threaded rod;

when the welding fixture works, when two steel plates are welded into a T shape, a worker can change the position of a welding line by adjusting the relative positions of the two support plates, so that workpieces in different shapes are welded, when the position of the welding line is close to the fixture, the worker can loosen the threaded rod on the fixture to enable the fixture not to continuously clamp the steel plates, so that the worker can take the fixture off the support plates and the steel plates, and after a proper position is selected, the edges of the support plates and the steel plates are placed into the fixture and fixed by screwing the threaded rod; thereby enabling the clamp to avoid the position of the welding seam;

according to the invention, the position of the clamp is changed to enable the clamp to avoid the position of the welding seam, so that the clamp is prevented from being influenced by high temperature generated during the welding of the steel plate, the temperature of the clamp is increased and the clamp is damaged, the actual application effect of the invention is ensured, and the service life of the invention is prolonged.

Preferably, a 5cm gap is reserved between one end of each L-shaped block, which is far away from the hinged position of the support plate, and the gaps between different L-shaped blocks and the corresponding support plates are equal;

when the welding device works, a gap is reserved between one end, far away from the hinged position of the L-shaped block and the support plate, so that the steel plate is partially exposed out of the support plate after the position adjustment of the steel plate is completed, and then a worker controls the submerged arc welding gun to weld the steel plate without shielding the support plate nearby the contact part of the two steel plates, so that the phenomenon that the welding seam is not uniformly melted when the two steel plates are welded is prevented, and the using effect of the welding device is improved when the welding device is used.

Preferably, the length direction of the sliding groove is the same as the connecting line direction between two corresponding L-shaped blocks; the step block can fix the L-shaped block when the L-shaped block is not in contact with the steel plate;

when the steel plate fixing device works, a worker slides the step block after the steel plate is fixed, so that the step block cannot block the L-shaped block, the worker rotates the L-shaped block downwards until the L-shaped block is attached to the supporting plate, the worker slides the step block again at the moment, so that the step block the L-shaped block quickly, the situation that the quality of the steel plate is influenced due to the fact that the L-shaped block rotates when the worker welds the two steel plates into a T shape due to the fact that the worker controls the supporting plate to adjust the position is avoided, the L-shaped block rotates to collide the surface of the steel plate, and the application effect of the steel plate fixing device in practical use is guaranteed.

A steel plate submerged arc welding method is suitable for the steel plate submerged arc welding equipment, and comprises the following steps:

s1: the staff rotates the L-shaped block and presses close to the supporting plate, and then slides the step block to enable the step block to block the L-shaped block; the staff adjusts the adjusting blocks to enable the exposed lengths of all the adjusting blocks to be the same, and then the staff puts the two steel plates on the two supporting plates respectively to adjust the positions of the steel plates;

s2: a worker loosens the clamp and adjusts the position of the clamp to enable the clamp to avoid the position of the welding line, and then screws the clamp; the working personnel reversely slide the step block after the steel plate is fixed, reversely rotate the L-shaped block, and then slide the step block again to fix the L-shaped block;

s3: the worker controls the driving unit and the hydraulic rod through the controller to adjust the positions of the supporting plates and adjust the positions of the two steel plates to a proper angle;

s4: the welding gun is controlled to weld the two steel plates, the worker loosens the clamp after the steel plates are cooled, and the steel plates are taken down, so that submerged-arc welding of the steel plates is completed.

The invention has the following beneficial effects:

1. the steel plate submerged arc welding equipment controls the two hydraulic rods to respectively extend out and contract, and controls the two support plates to be close to each other, so that the purpose that the steel plate on one support plate is in contact with the middle of the steel plate on the other support plate is achieved, the two steel plates can be welded into a T shape, the extending and contracting degrees of the two hydraulic rods are adjusted through the controller, the included angle between the two steel plates can be changed, the two steel plates with different angles are welded, and the using effect of the steel plate submerged arc welding equipment is improved; meanwhile, the positions of the steel plates are adjusted through the L-shaped blocks, so that the positions of welding ports of the two steel plates can be aligned when the two steel plates are welded, and the using effect of the welding device is improved again.

2. According to the steel plate submerged arc welding equipment, the length of the L-shaped block is exposed through the sliding adjusting block, so that the welding seam between the two steel plates is adjusted when the two steel plates are welded, the penetration rate of the welded part is improved after the steel plates are welded, and the using effect of the steel plate submerged arc welding equipment is improved again.

3. The steel plate submerged arc welding equipment disclosed by the invention has the advantages that the position of the clamp is changed, so that the clamp avoids the position of a welding seam, the clamp is prevented from being influenced by high temperature generated in the process of welding the steel plate, the temperature of the clamp is increased and damaged, the actual application effect of the steel plate submerged arc welding equipment is ensured, and the service life of the steel plate submerged arc welding equipment is prolonged.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a perspective view of a submerged arc welding apparatus for a steel plate according to the present invention;

FIG. 2 is an enlarged view at A in FIG. 1;

FIG. 3 is a partial cross-sectional view of an L-shaped block and a step block of the present invention;

FIG. 4 is a cross-sectional view of the clamp of the present invention;

FIG. 5 is a process flow diagram of a steel plate submerged arc welding method of the present invention;

in the figure: 1. a base; 2. welding a gun; 3. a clamp; 4. a moving block; 5. a drive unit; 41. a support bar; 42. a support plate; 43. a hydraulic lever; 44. an L-shaped block; 45. a sliding groove; 46. a step block; 7. a through groove; 71. a thread groove; 72. an adjusting block; 73. a threaded rod.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 5, the steel plate submerged arc welding device of the present invention comprises a base 1, a welding gun 2, a clamp 3, a moving block 4, a driving unit 5 and a controller; the number of the moving blocks 4 is two, the two moving blocks 4 are connected to two ends of the upper end face of the base 1 in a sliding mode, and two supporting rods 41 are fixedly connected to the two moving blocks 4; the other ends of the two corresponding support rods 41 are hinged with the same support plate 42; hydraulic rods 43 are hinged to the two moving blocks 4; the hydraulic rod 43 is positioned between the two corresponding support rods 41, and the other end of the hydraulic rod 43 is hinged with the corresponding support plate 42; the end surfaces of the two supporting plates 42 hinged with the hydraulic rod 43 are hinged with L-shaped blocks 44; the number of the L-shaped blocks 44 on the same supporting plate 42 is two, and the L-shaped blocks 44 can block the steel plate; a sliding groove 45 is arranged on the end surface of the support plate 42 hinged with the L-shaped block 44; a step block 46 is connected in the sliding groove 45 in a sliding manner; the number of the step blocks 46 in the corresponding sliding grooves 45 is two, the two step blocks 46 correspond to the two L-shaped blocks 44 respectively, and the step blocks 46 can block the L-shaped blocks 44 from rotating; the driving unit 5 comprises a screw rod and a driving motor; the number of the driving motors is two, the two driving motors are arranged far away from each other, the driving motors are fixed on the base 1, and output shafts of the driving motors are fixedly connected with the screw rods; the screw rods are in threaded connection with the corresponding moving blocks 4; the two support plates 42 are disposed obliquely in the initial state; the support plate 42 is made of a high temperature resistant material, such as a heat resistant high strength magnesium alloy;

when the steel plate adjusting device works, in the prior art, the steel plates are generally placed on the support frame, and the angle between the two steel plates is adjusted by adopting the mode of adjusting the support frame; although the angle between two steel plates can be realized in the prior art, the two steel plates cannot be arranged into a T shape, and the included angle between the steel plates is changed, so that manual operation is needed when the two steel plates are welded into the T shape, and the operation is very inconvenient;

therefore, when the worker uses the present invention, he first puts the L-shaped block 44 close to the supporting plate 42, and then slides the step block 46 in the sliding groove 45 toward the corresponding L-shaped block 44, so that the extended end of the step block 46 catches the L-shaped block 44 to fix the L-shaped block 44; after all the L-shaped blocks 44 are fixed, a worker places the two steel plates on the two corresponding supporting plates 42, so that the two steel plates slide downwards on the supporting plates 42 under the action of gravity until the steel plates are in contact with the L-shaped blocks 44, and the positions of the sides of the steel plates to be welded are flush; after the position of the steel plate is adjusted, the worker fixes the clamp 3, so that the steel plate is fixed on the support plate 42 by the clamp 3, the worker slides the step block 46 in the opposite direction, so that the step block 46 cannot continuously block the L-shaped block 44, and the worker rotates the L-shaped block 44 in the opposite direction, so that the L-shaped block 44 does not block the steel plate when the steel plate is welded; when a worker welds two steel plates into a straight line, the worker controls the hydraulic rod 43 to extend out through the controller, so that the end faces, close to each other, of the two support plates 42 are jacked up by the hydraulic rod 43, the support plates 42 rotate around the positions hinged with the support rods 41 until the positions of the two support plates 42 are kept in a horizontal state, at the moment, the worker controls the driving unit 5 through the controller to drive the two driving motors to rotate, so that the two support plates 42 are close to each other under the driving of the driving motors by the two spiral rods until the two support plates 42 are contacted, the worker controls the mechanical arm to drive the welding gun 2 to move through the controller, the controller controls the welding gun 2 to flow out welding flux after the welding gun 2 reaches the position, and controls the welding wire to be electrified, so that the submerged arc welding gun is controlled to weld the two steel plates; when two steel plates are welded into a T shape, a worker controls one hydraulic rod 43 to contract through the controller, so that the inclination degree of the support plate 42 is increased, then controls the other hydraulic rod 43 to extend out, reduces the inclination degree of the other support plate 42, controls the driving unit 5 through the controller, enables the two support plates 42 to approach until the steel plate on the support plate 42 with relatively small inclination degree contacts the middle part of the steel plate on the support plate 42 with relatively large inclination degree, and controls the submerged arc welding gun to weld the two steel plates through the controller; the controller is used for adjusting the extension and contraction degrees of the two hydraulic rods 43, so that the included angle between the two steel plates can be changed, and the two steel plates with different angles can be welded;

according to the invention, the two hydraulic rods 43 are controlled to extend and contract respectively, and then the two support plates 42 are controlled to approach each other, so that the purpose that the steel plate on one support plate 42 contacts the middle part of the steel plate on the other support plate 42 is achieved, and the two steel plates can be welded into a T shape; the controller is used for adjusting the extension and contraction degrees of the two hydraulic rods 43, so that the included angle between the two steel plates can be changed, the two steel plates with different angles are welded, and the using effect of the welding machine is improved; meanwhile, the positions of the steel plates are adjusted through the L-shaped blocks 44, so that the positions of welding ports of the two steel plates can be aligned when the two steel plates are welded, and the using effect of the welding device is improved again.

As an embodiment of the invention, one end of the L-shaped block 44 away from the hinge position with the support plate 42 is provided with a through groove 7 and a thread groove 71; an adjusting block 72 is connected in the through groove 7 in a sliding manner; both ends of the adjusting block 72 are exposed out of the through groove 7, and size scales are carved on the adjusting block 72; the thread groove 71 is perpendicular to the through groove 7, one end of the thread groove 71 is communicated with the through groove 7, the other end of the thread groove 71 penetrates through the L-shaped block 44, a threaded rod 73 is connected with the thread in the thread groove 71, and the threaded rod 73 is propped against the outer wall of the adjusting block 72;

during work, a worker twists the threaded rod 73 in front of the steel plate on the supporting plate 42, unscrews the threaded rod 73, then slides the adjusting block 72 towards the direction close to the corresponding supporting rod 41, the worker adjusts the sliding distance of the adjusting block 72 according to the thickness of the steel plate, the thicker the thickness of the steel plate is, the longer the length of the adjusting block 72 exposed out of the L-shaped block 44 close to one end of the supporting rod 41 is, the length is not more than 5mm, and the worker screws the threaded rod 73 after adjusting the adjusting block 72, so that the position of the adjusting block 72 is fixed; after all the adjusting blocks 72 are fixed, a worker puts the steel plate on the supporting plate 42, so that the steel plate slides under the action of gravity until the steel plate is contacted with the adjusting blocks 72; the worker clamps the clamp 3 on the steel plate, adjusts the supporting plate 42 and starts welding;

according to the invention, the length of the L-shaped block 44 is exposed through the sliding adjusting block 72, so that the welding seam between the two steel plates is adjusted when the two steel plates are welded, the penetration rate of the welded part is improved after the steel plates are welded, and the using effect of the invention is improved again.

As an embodiment of the invention, the cross section of the clamp 3 is in a shape of a v 21274, one end surface of the clamp 3, which is far away from the base 1, is provided with a thread groove 71; the thread groove 71 penetrates through the clamp 3, and a threaded rod 73 is connected with the thread groove 71 in an internal thread manner; one end of the threaded rod 73 is exposed out of the threaded groove 71, and the steel plate can be fixed by the threaded rod 73;

when the welding jig is in work, when two steel plates are welded into a T shape, a worker can change the position of a welding line by adjusting the relative positions of the two support plates 42, so that workpieces in different shapes are welded, when the position of the welding line is close to the jig 3, the worker can loosen the threaded rod 73 on the jig 3, so that the jig 3 cannot continuously clamp the steel plates, the worker can take the jig 3 off the support plates 42 and the steel plates, and after a proper position is selected, the edges of the support plates 42 and the steel plates are placed in the jig 3 and are fixed by screwing the threaded rod 73; so that the clamp 3 avoids the position of the welding seam;

according to the invention, the position of the clamp 3 is changed to enable the clamp 3 to avoid the position of a welding seam, so that the clamp 3 is prevented from being influenced by high temperature generated in the process of welding steel plates, the temperature of the clamp 3 is increased and damaged, the practical application effect of the invention is ensured, and the service life of the invention is prolonged.

As an embodiment of the present invention, there is a 5cm gap between one end of the L-shaped block 44 away from the hinged position with the support plate 42 and the support plate 42, and the gaps between different L-shaped blocks 44 and the corresponding support plates 42 are equal;

when the welding device works, a gap is reserved between one end, far away from the hinged position of the support plate 42, of the L-shaped block 44 and the support plate 42, so that the steel plate part is exposed out of the support plate 42 after the position adjustment of the steel plate is completed, and further, a worker controls the position of the submerged arc welding gun to be not shielded by the support plate 42 near the contact part of the two steel plates when the submerged arc welding gun welds the steel plates, so that the phenomenon that the heat at the welding seam is transmitted to the support plate 42 when the two steel plates are welded and the welding seam is not uniformly melted is avoided, and the using effect of the welding device is improved when the welding device is used.

As an embodiment of the present invention, the length direction of the sliding groove 45 is the same as the connecting line direction between two corresponding L-shaped blocks 44; the step block 46 is capable of fixing the L-shaped block 44 when the L-shaped block 44 is not in contact with the steel plate;

during working, a worker slides the step block 46 after the steel plate is fixed, so that the step block 46 cannot block the L-shaped block 44, the worker rotates the L-shaped block 44 downwards until the L-shaped block 44 is attached to the support plate 42, the worker slides the step block 46 again at the moment, the step blocks the L-shaped block 44 quickly, the situation that the support plate 42 is controlled by the worker to adjust the position and the L-shaped block 44 rotates to collide the surface of the steel plate to cause steel plate scratch and influence the quality of the steel plate when the worker welds the two steel plates into a T shape is avoided, and the application effect of the steel plate welding device in practical use is guaranteed.

A steel plate submerged arc welding method is suitable for the steel plate submerged arc welding equipment, and comprises the following steps:

s1: the worker rotates the L-shaped block 44 to approach the support plate 42, and slides the step block 46 to enable the step block 46 to block the L-shaped block 44; the worker adjusts the adjusting blocks 72 to enable the exposed lengths of all the adjusting blocks 72 to be the same, and then places the two steel plates on the two supporting plates 42 respectively to adjust the positions of the steel plates;

s2: the worker loosens the clamp 3 and adjusts the position of the clamp 3, so that the clamp 3 avoids the position of the welding line, and then the clamp 3 is screwed down; the worker reversely slides the step block 46 after the steel plate is fixed, reversely rotates the L-shaped block 44, and then slides the step block 46 again to fix the L-shaped block 44;

s3: the worker controls the driving unit 5 and the hydraulic rod 43 through the controller so that the position of the support plate 42 is adjusted and the positions of the two steel plates are adjusted to a proper angle;

s4: the operator moves through the controller mechanical arm, controls the welding gun to flow out of welding flux and electrify the welding wire, controls the welding gun 2 to weld the two steel plates, and releases the clamp 3 after the steel plates are cooled, and then takes down the steel plates, so that submerged arc welding of the steel plates is completed.

The specific working process is as follows:

therefore, when the worker uses the present invention, he first puts the L-shaped block 44 close to the supporting plate 42, and then slides the step block 46 in the sliding groove 45 toward the corresponding L-shaped block 44, so that the extended end of the step block 46 catches the L-shaped block 44 to fix the L-shaped block 44; after all the L-shaped blocks 44 are fixed, a worker places the two steel plates on the two corresponding supporting plates 42, so that the two steel plates slide downwards on the supporting plates 42 under the action of gravity until the steel plates are in contact with the L-shaped blocks 44, and the positions of the sides of the steel plates to be welded are flush; after the position of the steel plate is adjusted, the worker fixes the clamp 3, so that the steel plate is fixed on the support plate 42 by the clamp 3, the worker slides the step block 46 in the opposite direction, so that the step block 46 cannot continuously block the L-shaped block 44, and the worker rotates the L-shaped block 44 in the opposite direction, so that the L-shaped block 44 does not block the steel plate when the steel plate is welded; when a worker welds two steel plates into a straight line, the worker controls the hydraulic rod 43 to extend out through the controller, so that the end faces, close to each other, of the two support plates 42 are jacked up by the hydraulic rod 43, the support plates 42 rotate around the positions hinged with the support rods 41 until the positions of the two support plates 42 are kept in a horizontal state, at the moment, the worker controls the driving unit 5 through the controller to drive the two driving motors to rotate, so that the two support plates 42 are close to each other under the driving of the driving motors by the two spiral rods until the two support plates 42 are contacted, the worker controls the mechanical arm to drive the welding gun 2 to move through the controller, the controller controls the welding gun 2 to flow out welding flux after the welding gun 2 reaches the position, and controls the welding wire to be electrified, so that the submerged arc welding gun is controlled to weld the two steel plates; when two steel plates are welded into a T shape, a worker controls one hydraulic rod 43 to contract through the controller, so that the inclination degree of the support plate 42 is increased, then controls the other hydraulic rod 43 to extend out, reduces the inclination degree of the other support plate 42, controls the driving unit 5 through the controller, enables the two support plates 42 to approach until the steel plate on the support plate 42 with relatively small inclination degree contacts the middle part of the steel plate on the support plate 42 with relatively large inclination degree, and controls the submerged arc welding gun to weld the two steel plates through the controller; the controller is used for adjusting the extension and contraction degrees of the two hydraulic rods 43, so that the included angle between the two steel plates can be changed, and the two steel plates with different angles can be welded; the worker twists the threaded rod 73 in front of the steel plate on the supporting plate 42, unscrews the threaded rod 73, slides the adjusting block 72 towards the direction close to the corresponding supporting rod 41, adjusts the sliding distance of the adjusting block 72 according to the thickness of the steel plate, the thicker the thickness of the steel plate is, the longer the length of the L-shaped block 44 exposed at one end of the adjusting block 72 close to the supporting rod 41 is, the length is not more than 5mm, and the worker screws the threaded rod 73 after adjusting the adjusting block 72, so that the position of the adjusting block 72 is fixed; after all the adjusting blocks 72 are fixed, a worker puts the steel plate on the supporting plate 42, so that the steel plate slides under the action of gravity until the steel plate is contacted with the adjusting blocks 72; the worker clamps the clamp 3 on the steel plate, adjusts the supporting plate 42 and starts welding; when welding two steel plates into a T shape, a worker can change the position of a welding line by adjusting the relative positions of the two support plates 42 so as to weld workpieces with different shapes, when the position of the welding line is close to the clamp 3, the worker unscrews the threaded rod 73 on the clamp 3 so that the clamp 3 cannot continuously clamp the steel plates, so that the worker takes the clamp 3 off the support plates 42 and the steel plates, selects a proper position, puts the edges of the support plates 42 and the steel plates into the clamp 3 and fixes the edges by screwing the threaded rod 73; so that the clamp 3 avoids the position of the welding seam; a gap is reserved between one end of the L-shaped block 44, which is far away from the hinged position of the support plate 42, and the support plate 42, so that the steel plate part is exposed out of the support plate 42 after the position adjustment of the steel plate is finished, and further, a worker controls the position of the submerged arc welding gun to be not shielded by the support plate 42 near the contact part of the two steel plates when the submerged arc welding gun welds the steel plates, thereby preventing the heat at the welding seam from being transferred to the support plate 42 when the two steel plates are welded, preventing the phenomenon of uneven penetration at the welding seam, and improving the use effect of the invention when in use; the staff slides the step block 46 after the steel plate is fixed, so that the step block 46 can not block the L-shaped block 44, the staff rotates the L-shaped block 44 downwards until the L-shaped block 44 is attached to the support plate 42, at the moment, the staff slides the step block 46 again, so that the step blocks the L-shaped block 44 quickly, the situation that the quality of the steel plate is affected due to the fact that the staff controls the support plate 42 to adjust the position when the staff welds the two steel plates into a T shape and the L-shaped block 44 rotates to collide the surface of the steel plate to cause scratching of the steel plate is avoided, and the application effect of the steel plate welding device in practical use is guaranteed.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.