Trapezoidal vertical strip type composite blank and welding method thereof

Abstract

The invention provides a trapezoidal vertical strip type composite blank and a welding method thereof.The trapezoidal vertical strip type composite blank comprises a lower base plate, the cross section of the lower base plate is rectangular, trapezoidal connecting vertical strips are welded to the edges of the periphery of the top of the lower base plate in a sealed mode, and a compound plate is arranged at the top of the lower base plate and located between the opposite sides of the four trapezoidal connecting vertical strips; an upper base plate is welded to the tops of the four trapezoidal connecting vertical strips in a sealed mode, and the lower base plate and the upper base plate are welded and fixed in a submerged arc welding mode. By means of the special design of the trapezoid connecting vertical strips, sealing welding after the lower base plate and the specially-designed trapezoid connecting vertical strips are assembled, and subsequent submerged-arc welding and vacuumizing, it can be effectively guaranteed that the situation that the base plate is oxidized due to the welding heat influence of submerged-arc welding can be effectively avoided, and therefore the composite quality during rolling is improved, the mechanical property is more excellent, and the service life of the base plate is prolonged. And it is effectively guaranteed that cracking is avoided during rolling, the yield of the composite plate is increased, the bonding quality is improved, and waste of precious metal is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of metal composite plate processing, and in particular to a trapezoidal vertical strip composite blank and a welding method thereof. Background Art

[0002] Composite billet welding of carbon steel plates usually refers to connecting two or more carbon steel plates together through welding technology, or composite welding of carbon steel plates with other materials and then rolling. This technology is widely used in the fields of construction, bridges, shipbuilding, pressure vessels, pipeline engineering, etc.

[0003] Traditional composite billets are assembled with rectangular bars, which are composed of two carbon steel plates, a composite plate in the middle, and rectangular bars around the lower base plate to isolate the composite plate. When making billets, the rectangular bars around the upper and lower base plates of the composite billet need to be sealed and submerged arc welded. However, the welding heat input during submerged arc welding is large. After welding, the traditional rectangular bars are severely oxidized. The oxidized base plate hinders the combination of the composite plate and the base plate during rolling. It is particularly easy to produce delamination defects at the edges of the rectangular bars of the composite billet submerged arc welding, which reduces the yield rate and causes a large waste of precious metals.

[0004] Therefore, the present application proposes a trapezoidal vertical strip composite blank and a welding method thereof. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a trapezoidal vertical strip composite blank and a welding method thereof, which solves the problems mentioned in the background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A trapezoidal vertical bar composite blank and a welding method thereof, comprising a lower base plate, whose cross section is rectangular, trapezoidal connecting vertical bars are seal-welded at the edges around the top of the lower base plate, a composite plate is placed at the top of the lower base plate and between the opposite sides of the four trapezoidal connecting vertical bars, and an upper base plate is seal-welded at the tops of the four trapezoidal connecting vertical bars, and the lower base plate and the upper base plate are welded and fixed by submerged arc welding, and an exhaust hole penetrating one of the trapezoidal connecting vertical bars is opened on the opposite sides of the lower base plate and the upper base plate.

[0008] A method for welding a trapezoidal vertical strip composite blank, using the trapezoidal vertical strip composite blank as claimed in the above claims, the welding method comprising the following steps:

[0009] S1: placing the lower substrate: placing the lower substrate on a welding device, wherein the welding device comprises a bearing assembly, a positioning assembly, a welding assembly, a hole opening assembly and a gas extraction assembly, wherein the lower substrate is placed on the bearing assembly, wherein a sealing welding gun and a submerged arc welding gun are provided on the welding assembly;

[0010] S2: Positioning the lower substrate: positioning the lower substrate placed on the supporting component by means of a positioning component;

[0011] S3: placing and positioning the trapezoidal connecting bars: placing the trapezoidal connecting bars at one edge of the top of the lower base plate, positioning the trapezoidal connecting bars by means of the positioning assembly, so that the side wall of the trapezoidal connecting bars and the side wall of the lower base plate are located on the same vertical plane, and then horizontally rotating the lower base plate by means of the bearing assembly, placing the other three trapezoidal connecting bars in turn, and positioning the trapezoidal connecting bars by means of the positioning assembly;

[0012] S4: Seal welding is performed between the four trapezoidal connecting bars and the lower base plate in sequence: the seal welding is performed between the trapezoidal connecting bars and the lower base plate by using the seal welding gun of the welding assembly, the lower base plate is horizontally rotated by the bearing assembly, the four trapezoidal connecting bars and the lower base plate are sealed and welded in sequence, and a doubler plate is placed between the four trapezoidal connecting bars;

[0013] S5: placing the upper substrate: placing the upper substrate on the four trapezoidal connecting vertical bars, and positioning the upper substrate by a positioning assembly;

[0014] S6: Perform sealing welding between the upper base plate and the four trapezoidal connecting bars: perform sealing welding between the trapezoidal connecting bars and the upper base plate by using the sealing welding gun of the welding assembly, perform horizontal rotation cooperation on the lower base plate by using the bearing assembly, and perform sealing welding between the four trapezoidal connecting bars and the upper base plate in turn;

[0015] S7: Submerged arc welding: Submerged arc welding is performed to fix the lower base plate and the upper base plate by using a submerged arc welding gun of the welding assembly;

[0016] S8: Opening a hole: opening an air extraction hole penetrating one of the trapezoidal connecting bars on opposite sides of the lower substrate and the upper substrate by using a hole opening component;

[0017] S9: Vacuuming: connect the vacuum assembly to the vacuum hole, and vacuum the cavity between the lower substrate, the four trapezoidal connecting bars and the upper substrate through the vacuum assembly.

[0018] Further: the welding equipment also includes a base, the bearing assembly is mounted on the base, the positioning assembly is mounted on the bearing assembly, the welding assembly is mounted on the base and is located on one side of the bearing assembly, the opening assembly is mounted on the welding assembly, and the exhaust assembly is mounted on the base;

[0019] The top of the base is symmetrically fixed with support rods, and the top of the base and one side of the two support rods are symmetrically fixed with vertical rods;

[0020] The bearing assembly includes a bearing plate hinged on two vertical poles, a circular hole is opened on the top of the bearing plate, a through hole is opened on the inner bottom wall of the bearing plate and located in the circular hole, a turntable is rotatably installed in the circular hole, a rotating shaft that movably passes through the through hole is fixed at the bottom of the turntable, a driving member for driving the rotating shaft to rotate is installed on the bearing plate, an electric cylinder hinged to the bearing plate is hinged on the base, and the positioning assembly is installed on the bearing plate.

[0021] Furthermore: the driving member includes a rotating rod rotatably mounted on the bottom of the supporting plate, one end of the rotating rod is connected to the rotating shaft through a bevel gear assembly, and a motor for driving the rotating rod to rotate is fixedly mounted on the bottom of the supporting plate.

[0022] Further: the positioning assembly includes a sliding plate installed on the top of the supporting plate for sliding along the direction of the circular hole, a driving rod threadedly connected to the sliding plate is rotatably installed on the supporting plate, a horizontal through groove is opened on the sliding plate, and two positioning blocks are installed on the sliding plate and are located in the through groove and slide horizontally, an electromagnetic slider connected to the positioning block is installed on the sliding plate, one end of the positioning block extends to a side of the sliding plate close to the circular hole, and a movable plate is installed on the top of the positioning block for sliding along the direction of the sliding plate, and a limiting plate is fixed on the side where the two movable plates are close to each other, a vertical electric push rod is fixed on the limiting plate, an extension plate is fixed on the bottom of the electric push rod, and an electromagnetic slider connected to the movable plate is fixed on the positioning block.

[0023] Further: the welding assembly includes a base plate on the top of the base that is slidably installed in a horizontal direction, the base plate is located on the side of the vertical rod away from the support rod, an electromagnetic slider three connected to the base plate is fixedly installed on the base, two telescopic rods one in a vertical direction are fixedly installed on the top of the base plate, a fixed block is fixed on the top of the two telescopic rods one, an electric cylinder two connected to the fixed block is fixedly installed on the top of the base plate, telescopic rods two are symmetrically fixed in a horizontal shape on the fixed block, the telescopic ends of the two telescopic rods two are fixedly installed with a bracket, an electric cylinder three connected to the bracket is fixedly installed on the fixed block, a mounting block is hinged on the bracket through a hinge shaft, a motor one connected to the hinge shaft is fixedly installed on the mounting block, a connecting plate one is fixedly installed on the side of the mounting block close to the load-bearing plate, a connecting plate two is fixedly installed on the bottom of the mounting block, a sealing welding gun is fixedly installed on the connecting plate two, a submerged arc welding gun is fixedly installed on the connecting plate one, and the opening assembly is installed at the bottom of the mounting block.

[0024] Further: the hole opening assembly includes an electric push rod 1 which is symmetrically fixedly installed at the bottom of the mounting block and located on one side of a connecting plate 2. The piston rods of the two electric push rods 1 are fixed with a connecting plate 3. A drill bit is rotatably installed on the connecting plate 3 in a vertical direction. A motor 2 for driving the drill bit to rotate is fixedly installed on the connecting plate 3.

[0025] Furthermore: the vacuum assembly includes a negative pressure pump fixedly installed on the base, a sliding block is slidably installed in the groove and on the opposite sides of the two positioning blocks in a horizontal direction, a horizontal ventilation pipe is installed on the sliding block, and a connecting pipe is fixedly installed on the bottom of the supporting plate, one end of the connecting pipe is connected to the air inlet end of the negative pressure pump through corrugated hose 1, and the other end is connected to the ventilation pipe through corrugated hose 2.

[0026] Furthermore: the ventilation pipe is movable in the horizontal direction and penetrates the sliding block. The end of the ventilation pipe close to the circular hole can be inserted into the exhaust hole and form a conflict with the inner wall of the exhaust hole. A sleeve plate is fixed on the outer wall of the ventilation pipe and located on the side of the sliding block away from the circular hole. A tension spring mounted on the outside of the ventilation pipe is fixedly installed between the sleeve plate and the opposite side of the sliding block.

[0027] Furthermore: negative pressure holes are symmetrically opened in vertical directions on both sides of the rotating shaft on the turntable, a rotating joint is coaxially fixed to the outside of the rotating shaft, one end of the rotating joint is fixed with two negative pressure tubes respectively connected to the negative pressure holes, and the other end is fixed with a connecting pipe, an electromagnetic valve is installed on the connecting pipe, and the connecting pipe is connected to the connecting pipe at the side of the electromagnetic valve away from the second corrugated hose.

[0028] The present invention provides a trapezoidal vertical strip composite blank and a welding method thereof. Compared with the prior art, the present invention has the following beneficial effects:

[0029] Through the special design of the trapezoidal connecting bars, the sealing welding after the lower base plate and the specially designed trapezoidal connecting bars are assembled, and the subsequent submerged arc welding and vacuuming can effectively ensure that the base plate is not affected by the welding heat of the submerged arc welding and caused to oxidize, thereby improving the composite quality during rolling, and the mechanical properties are more excellent, effectively ensuring that there is no cracking during rolling, improving the yield rate of the composite plate, improving the bonding quality, and reducing the waste of precious metals. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 A schematic diagram of the three-dimensional structure of a trapezoidal vertical strip composite blank of the present invention is shown;

[0032] Figure 2 A flow chart of a welding method for a trapezoidal vertical strip composite blank of the present invention is shown;

[0033] Figure 3A schematic diagram of the installation structure of the welding equipment of the present invention is shown;

[0034] Figure 4 A schematic diagram of the installation structure of the driving member of the present invention is shown;

[0035] Figure 5 A schematic diagram of the installation structure of the base plate of the present invention is shown;

[0036] Figure 6 A schematic diagram of the installation structure of the sliding block and the vent pipe of the present invention is shown;

[0037] Figure 7 A schematic diagram of the installation structure of the rotary joint of the present invention is shown;

[0038] Figure 8 The present invention shows Figure 7 The enlarged view of point A in the middle;

[0039] Fig. 9 A schematic diagram of the installation structure of the turntable of the present invention is shown;

[0040] Fig.10 A schematic diagram of the installation structure of the limit plate of the present invention is shown;

[0041] Fig.11 A schematic structural diagram of a welding assembly of the present invention is shown;

[0042] Fig.12 A schematic diagram of the installation structure of the hole opening assembly of the present invention is shown;

[0043] As shown in the figure: 1. Lower base plate; 2. Trapezoidal connecting bars; 21. Exhaust hole; 3. Upper base plate; 4. Carrying assembly; 41. Carrying plate; 411. Circular hole; 412. Perforation; 42. Turntable; 421. Rotating shaft; 422. Negative pressure hole; 423. Rotating joint; 424. Negative pressure pipe; 425. Connecting pipe; 43. Driving member; 431. Rotating rod; 432. Bevel gear assembly; 433. Motor; 44. Electric cylinder 1; 5. Positioning assembly; 51. Sliding plate; 511. Groove; 52. Driving rod; 53. Positioning block; 54. Electromagnetic slider 1; 55. Moving plate; 56. Limiting plate; 561. Electric push rod 2; 562. Extension plate; 57. Electromagnetic slider 2; 6. Welding assembly; 61. Bottom plate ;611, telescopic rod one;612, electric cylinder two;62, electromagnetic slider three;63, fixed block;631, telescopic rod two;632, electric cylinder three;64, bracket;65, mounting block;651, hinge shaft;652, motor one;66, connecting plate one;67, connecting plate two;68, sealing welding gun;69, submerged arc welding gun;7, opening assembly;71, electric push rod one;72, connecting plate three;73, drill bit;74, motor two;8, exhaust assembly;81, negative pressure pump;82, sliding block;83, ventilation pipe;831, sleeve plate;832, tension spring;84, connecting pipe;841, electromagnetic valve;85, corrugated hose one;86, corrugated hose two;9, base;91, support rod;92, vertical pole. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] Embodiment 1

[0046] In order to solve the technical problems in the background technology, a trapezoidal vertical strip composite billet and a welding method thereof are provided as follows:

[0047] Combination Figure 1-Figure 12 As shown, the present invention provides a trapezoidal vertical bar type composite blank and a welding method thereof, comprising a lower base plate 1, whose cross section is rectangular, trapezoidal connecting vertical bars 2 are seal-welded at the edges around the top of the lower base plate 1, a composite plate is placed at the top of the lower base plate 1 and between the opposite sides of the four trapezoidal connecting vertical bars 2, and an upper base plate 3 is seal-welded at the top of the four trapezoidal connecting vertical bars 2, and the lower base plate 1 and the upper base plate 3 are welded and fixed by submerged arc welding, and an exhaust hole 21 penetrating one of the trapezoidal connecting vertical bars 2 is opened on the opposite sides of the lower base plate 1 and the upper base plate 3.

[0048] Through the special design of the trapezoidal connecting bars 2, the sealing welding after the lower base plate 1 and the specially designed trapezoidal connecting bars 2 are assembled, and the subsequent submerged arc welding and vacuuming can effectively ensure that the base plate is not affected by the welding heat of the submerged arc welding and caused to oxidize, thereby improving the composite quality during rolling, and the mechanical properties are more excellent, effectively ensuring that there is no cracking during rolling, improving the yield rate of the composite plate, improving the bonding quality, and reducing the waste of precious metals.

[0049] A method for welding a trapezoidal vertical strip composite blank, using the trapezoidal vertical strip composite blank as claimed in the above claims, the welding method comprising the following steps:

[0050] S1: placing the lower substrate 1: placing the lower substrate 1 on a welding device, the welding device comprising a bearing assembly 4, a positioning assembly 5, a welding assembly 6, a hole opening assembly 7 and a gas extraction assembly 8, the lower substrate 1 is placed on the bearing assembly 4, wherein the welding assembly 6 is provided with a sealing welding gun 68 and a submerged arc welding gun 69;

[0051] S2: Positioning the lower substrate 1: Positioning the lower substrate 1 placed on the supporting component 4 by using the positioning component 5;

[0052] S3: placing and positioning the trapezoidal connecting strips 2: placing the trapezoidal connecting strips 2 at one edge of the top of the lower base plate 1, positioning the trapezoidal connecting strips 2 by means of the positioning assembly 5, so that the side walls of the trapezoidal connecting strips 2 and the side walls of the lower base plate 1 are located on the same vertical plane, and then the lower base plate 1 is horizontally rotated by means of the bearing assembly 4, and the other three trapezoidal connecting strips 2 are placed in turn, and the trapezoidal connecting strips 2 are positioned by means of the positioning assembly 5;

[0053] S4: Seal welding is performed between the four trapezoidal connecting bars 2 and the lower base plate 1 in sequence: the seal welding is performed between the trapezoidal connecting bars 2 and the lower base plate 1 by using the seal welding gun 68 of the welding assembly 6, the lower base plate 1 is horizontally rotated by the bearing assembly 4, and the seal welding is performed between the four trapezoidal connecting bars 2 and the lower base plate 1 in sequence, and a doubler plate is placed between the four trapezoidal connecting bars 2;

[0054] S5: placing the upper substrate 3: placing the upper substrate 3 on the four trapezoidal connecting bars 2, and positioning the upper substrate 3 by the positioning assembly 5;

[0055] S6: Perform sealing welding between the upper base plate 3 and the four trapezoidal connecting bars 2: Perform sealing welding between the trapezoidal connecting bars 2 and the upper base plate 3 by using the sealing welding gun 68 of the welding assembly 6, and perform horizontal rotation cooperation with the lower base plate 1 by using the bearing assembly 4, and perform sealing welding between the four trapezoidal connecting bars 2 and the upper base plate 3 in turn;

[0056] S7: Submerged arc welding: The lower substrate 1 and the upper substrate 3 are fixed by submerged arc welding using the submerged arc welding gun 69 of the welding assembly 6;

[0057] S8: Opening a hole: opening an air extraction hole 21 penetrating one of the trapezoidal connecting bars 2 on the opposite sides of the lower substrate 1 and the upper substrate 3 by using the hole opening component 7;

[0058] S9: Vacuuming: connect the vacuum assembly 8 with the vacuum hole 21 , and vacuum the cavity between the lower substrate 1 , the four trapezoidal connecting bars 2 and the upper substrate 3 through the vacuum assembly 8 .

[0059] In this embodiment, the welding device further includes a base 9, the bearing assembly 4 is mounted on the base 9, the positioning assembly 5 is mounted on the bearing assembly 4, the welding assembly 6 is mounted on the base 9 and is located on one side of the bearing assembly 4, the opening assembly 7 is mounted on the welding assembly 6, and the exhaust assembly 8 is mounted on the base 9;

[0060] The top of the base 9 is symmetrically fixed with support rods 91, and the top of the base 9 and one side of the two support rods 91 are symmetrically fixed with vertical rods 92;

[0061] The bearing assembly 4 includes a bearing plate 41 hinged on two vertical rods 92, a circular hole 411 is opened on the top of the bearing plate 41, a through hole 412 is opened on the bearing plate 41 and located on the inner bottom wall of the circular hole 411, a turntable 42 is rotatably installed in the circular hole 411, a rotating shaft 421 that movably passes through the through hole 412 is fixed at the bottom of the turntable 42, a driving member 43 for driving the rotating shaft 421 to rotate is installed on the bearing plate 41, an electric cylinder 44 hinged to the bearing plate 41 is hinged on the base 9, and the positioning assembly 5 is installed on the bearing plate 41.

[0062] In this embodiment, the driving member 43 includes a rotating rod 431 rotatably installed at the bottom of the supporting plate 41, one end of the rotating rod 431 is connected to the rotating shaft 421 through a bevel gear assembly 432, and a motor 433 for driving the rotating rod 431 to rotate is fixedly installed at the bottom of the supporting plate 41. When in use, the motor 433 is controlled to be turned on, and the output shaft of the motor 433 rotates to drive the rotating rod 431 to rotate at the bottom of the supporting plate 41, thereby driving the rotating shaft 421 to rotate through the bevel gear assembly 432, which is convenient for control.

[0063] Embodiment 2

[0064] like Figure 1-Figure 12 As shown, based on the above embodiment, this embodiment further provides the following contents:

[0065] In this embodiment, the positioning assembly 5 includes a sliding plate 51 slidably mounted on the top of the carrying plate 41 in the direction of the circular hole 411, a driving rod 52 threadedly connected to the sliding plate 51 is rotatably mounted on the carrying plate 41, a through slot 511 in a horizontal direction is provided on the sliding plate 51, two positioning blocks 53 are slidably mounted on the sliding plate 51 and located in the through slot 511 in a horizontal direction, an electromagnetic slider 54 connected to the positioning block 53 is installed on the sliding plate 51, one end of the positioning block 53 extends to a side of the sliding plate 51 close to the circular hole 411, and a moving plate 55 is slidably mounted on the top of the positioning block 53 in the direction of the sliding plate 51, and a limiting plate 56 is fixed on the side where the two moving plates 55 are close to each other, and an electric push rod 56 in a vertical direction is fixed on the limiting plate 56 Rod 2 561, an extension plate 562 is fixed at the bottom of the electric push rod 2 561, and an electromagnetic slider 2 57 connected to the moving plate 55 is fixedly installed on the positioning block 53. When in use, the lower base plate 1 is placed on the top of the supporting plate 41 and is located on the turntable 42. The driving rod 52 is rotated to make the sliding plate 51 approach the circular hole 411 on the supporting plate 41, so that the sliding plate 51 fits with the lower base plate 1, and the two electromagnetic sliders 1 54 are controlled to make the two positioning blocks 53 approach each other, so that the two positioning blocks 53 are in conflict with the lower base plate 1, so that the lower base plate 1 can be positioned. Through the cooperation of the two electromagnetic sliders 1 54, the two electromagnetic sliders 2 57, the two electric push rods 2 561 and the driving rod 52, the positioning effect of the trapezoidal connecting vertical strip 2 can be achieved, and the operation is simple.

[0066] In this embodiment, the welding assembly 6 includes a bottom plate 61 on the top of the base 9 which is slidably mounted in the horizontal direction. The bottom plate 61 is located on the side of the vertical rod 92 away from the support rod 91. An electromagnetic slider 3 62 connected to the bottom plate 61 is fixedly mounted on the base 9. Two telescopic rods 1 611 in the vertical direction are fixedly mounted on the top of the bottom plate 61. A fixing block 63 is fixed on the top of the two telescopic rods 1 611. An electric cylinder 2 612 connected to the fixing block 63 is fixedly mounted on the top of the bottom plate 61. A telescopic rod 2 631 in a horizontal shape is symmetrically fixed on the fixing block 63. The telescopic rods 1 631 are symmetrically fixed on the fixing block 63. A bracket 64 is fixedly installed on the retracted end, an electric cylinder three 632 connected to the bracket 64 is fixedly installed on the fixed block 63, a mounting block 65 is hinged on the bracket 64 through a hinge shaft 651, a motor one 652 connected to the hinge shaft 651 is fixedly installed on the mounting block 65, a connecting plate one 66 is fixedly installed on the side of the mounting block 65 close to the bearing plate 41, a connecting plate two 67 is fixedly installed on the bottom of the mounting block 65, a sealing welding gun 68 is fixedly installed on the connecting plate two 67, a submerged arc welding gun 69 is fixedly installed on the connecting plate one 66, and the opening assembly 7 is installed at the bottom of the mounting block 65.

[0067] In this embodiment, the hole opening component 7 includes an electric push rod 1 71 which is symmetrically fixedly installed at the bottom of the mounting block 65 and located on one side of the connecting plate 2 67. The piston rods of the two electric push rods 1 71 are fixed with a connecting plate 3 72. A drill bit 73 in a vertical direction is rotatably installed on the connecting plate 3 72. A motor 2 74 for driving the drill bit 73 to rotate is fixedly installed on the connecting plate 3 72. When the air extraction hole 21 is opened, the hinge shaft 651 is driven to rotate by the motor 1 652 to rotate the mounting block 65 so that the drill bit 73 faces the trapezoidal connecting vertical bar 2. The motor 2 74 is controlled to rotate the drill bit 73 on the connecting plate 3 72. The two electric push rods 1 71 are controlled to make the connecting plate 3 72 approach the direction of the trapezoidal connecting vertical bar 2, thereby achieving the effect of opening a hole in the trapezoidal connecting vertical bar 2, and the operation is simple.

[0068] Embodiment 3

[0069] like Figure 1-Figure 12 As shown, based on the above embodiment, this embodiment further provides the following contents:

[0070] In this embodiment, the vacuum assembly 8 includes a negative pressure pump 81 fixedly mounted on the base 9, a sliding block 82 is slidably mounted in the groove 511 and on the opposite sides of the two positioning blocks 53 in a horizontal direction, a horizontal ventilation pipe 83 is mounted on the sliding block 82, and a connecting pipe 84 is fixedly mounted on the bottom of the carrier plate 41, one end of the connecting pipe 84 is connected to the air inlet end of the negative pressure pump 81 through a corrugated hose 1 85, and the other end is connected to the ventilation pipe 83 through a corrugated hose 2 86. When the composite blank is vacuumed, the motor 433 is controlled to rotate the turntable 42 , so that the side of the composite blank with the exhaust hole 21 is opposite to the sliding plate 51, and the sliding block 82 slides in the groove 511, so that the ventilation pipe 83 is opposite to the exhaust hole 21, and the sliding plate 51 is driven by the rod 52 to move toward the circular hole 411 on the supporting plate 41, so that the ventilation pipe 83 and the composite blank are in conflict, and the ventilation pipe 83 is connected with the exhaust hole 21, and the negative pressure pump 81 is controlled to work, so that the air in the composite blank can be extracted outward through the ventilation pipe 83, the second corrugated hose 86, the connecting pipe 84 and the first corrugated hose 85, so as to achieve the effect of vacuuming the inside of the composite blank.

[0071] In this embodiment, the vent pipe 83 is movable in the horizontal direction and penetrates the sliding block 82. The end of the vent pipe 83 close to the circular hole 411 can be inserted into the exhaust hole 21 and form a conflict with the inner wall of the exhaust hole 21. A sleeve plate 831 is fixed to the outer wall of the vent pipe 83 and is located on the side of the sliding block 82 away from the circular hole 411. A tension spring 832 is fixedly installed on the outside of the vent pipe 83 between the sleeve plate 831 and the opposite side of the sliding block 82. By setting the sleeve plate 831 and the tension spring 832, the vent pipe 83 is movable in the horizontal direction and penetrates the sliding block 82. The vent pipe 83 is close to the circular hole 411 and the inner wall of the exhaust hole 21. One end of the circular hole 411 can be inserted into the exhaust hole 21. When the composite blank is vacuumed, the vent pipe 83 contacts the inner wall of the exhaust hole 21, which is beneficial to extracting the air in the composite blank out. In addition, the driving rod 52 is rotated to make the sliding plate 51 approach the circular hole 411 on the supporting plate 41, so that when the sliding plate 51 is in contact with the lower substrate 1 and the vent pipe 83 is in contact with the composite blank, the vent pipe 83 slides on the sliding plate 51 in the direction away from the composite blank, and the tension spring 832 is deformed, thereby not affecting the positioning of the composite blank by the sliding plate 51 in contact with the lower substrate 1.

[0072] In this embodiment, negative pressure holes 422 are symmetrically provided on the rotating disk 42 and on both sides of the rotating shaft 421, and a rotating joint 423 is coaxially fixed to the outside of the rotating shaft 421. One end of the rotating joint 423 is fixedly installed with two negative pressure pipes 424 respectively connected to the negative pressure holes 422, and the other end is fixed with a connecting pipe 425. A solenoid valve 841 is installed on the connecting pipe 84, and the connecting pipe 425 is connected to the connecting pipe 84 at a side of the solenoid valve 841 away from the corrugated hose 86. By setting the negative pressure hole 422 and the rotating joint 423, the negative pressure pipe 424 connected to the negative pressure hole 422 is fixedly installed at one end of the rotating joint 423. 3. The special design of the negative pressure pipe 424, the connecting pipe 425 and the solenoid valve 841. During the welding process of the composite blank, after the lower substrate 1 is placed on the top of the carrier plate 41 and located on the turntable 42, the solenoid valve 841 is controlled to be closed. At this time, the negative pressure pump 81 is controlled to work, and the air at the negative pressure hole 422 can be pumped out through the connecting pipe 425, the rotating joint 423 and the negative pressure pipe 424, so that negative pressure is formed between the lower substrate 1 and the carrier plate 41, and the negative pressure positioning effect between the lower substrate 1 and the carrier plate 41 is achieved, thereby improving the positioning effect of the composite blank.

[0073] The working principle and use process of the present invention:

[0074] When welding the composite blank, the lower substrate 1 is placed on the top of the carrier plate 41 and located on the turntable 42, and the driving rod 52 is rotated to make the sliding plate 51 approach the circular hole 411 on the carrier plate 41, so that the sliding plate 51 fits with the lower substrate 1, and the two electromagnetic sliders 1 54 are controlled to make the two positioning blocks 53 approach each other, so that the two positioning blocks 53 both form a conflict with the lower substrate 1, so that the lower substrate 1 can be positioned, and then the two electromagnetic sliders 2 57 are controlled to make the two moving plates 55 move away from the sliding plate 51, and the trapezoidal connecting vertical strip 2 is placed on the top of the lower substrate 1 and located on the opposite side of the sliding plate 51 and the two extension plates 562, and the two electric push rods 2 561 are controlled to make the two extension plates 562 both contact with the lower substrate 1, and then the two electromagnetic sliders 2 57 are controlled to make the two moving plates 55 move toward the sliding plate 51. The positioning of the trapezoidal connecting strip 2 can be realized. At this time, the staff manually spot-welds the lower base plate 1 and the trapezoidal connecting strip 2; after positioning the trapezoidal connecting strip 2, the two electric push rods 561 are controlled to move the two extension plates 562 to the top of the trapezoidal connecting strip 2, and the two electromagnetic sliders 54 are controlled to move the two positioning blocks 53 away from each other, and then the driving rod 52 is rotated in the opposite direction to slide the sliding plate 51 back to its original position, and then the motor 433 is controlled to rotate the rotating shaft 421 to rotate the turntable 42, thereby driving the lower base plate 1 to rotate. When the lower base plate 1 rotates ninety degrees, the positioning of an adjacent trapezoidal connecting strip 2 can be completed through the cooperation of the two electromagnetic sliders 54, the two electromagnetic sliders 57, the two electric push rods 561 and the driving rod 52, and so on, the positioning of four trapezoidal connecting strips 2 can be realized;

[0075] During this period, the motor 433 is controlled to rotate the shaft 421, so that the turntable 42 rotates. When the side of the top of the lower base plate 1 where the trapezoidal connecting strip 2 is placed rotates to the side close to the bottom plate 61, the hinge shaft 651 is driven by the motor 1 652 to rotate so that the mounting block 65 rotates, so that the sealing welding gun 68 is directly facing the trapezoidal connecting strip 2. Through the cooperation of the electric cylinder 2 612 and the electric cylinder 3 632, the sealing welding gun 68 is fitted with the connection between the trapezoidal connecting strip 2 and the lower base plate 1. The electromagnetic slider 3 62 is used to move the bottom plate 61 to one end of the trapezoidal connecting strip 2, and then the electromagnetic slider 3 62 is controlled to slide the bottom plate 61 toward the other end of the trapezoidal connecting strip 2, and the sealing welding gun 68 is controlled to move. 8, the sealing welding between the trapezoidal connecting bars 2 and the lower base plate 1 can be realized, and the sealing welding between the lower base plate 1 and the four trapezoidal connecting bars 2 can be realized in the same way; after the sealing welding between the lower base plate 1 and the four trapezoidal connecting bars 2, the double plate is placed between the opposite sides of the four trapezoidal connecting bars 2, and the upper base plate 3 is placed on the four trapezoidal connecting bars 2, and the driving rod 52 and the two electromagnetic sliders 1 54 are cooperated to make the sliding plate 51 and the two positioning blocks 53 form a conflict with the upper base plate 3, so that the upper base plate 3 can be positioned, and the sealing welding gun 68 is in contact with the trapezoidal connecting bars 2 through the cooperation of the motor 1 652, the electric cylinder 2 612 and the electric cylinder 3 632. The connection between the vertical strip 2 and the upper base plate 3 is fitted, and then the bottom plate 61 is slid on the base 9 by the electromagnetic slider 3 62, and the upper base plate 3 and the four trapezoidal vertical strips 2 can be sealed and welded by the cooperation of the motor 433; after the welding is completed, the composite blank is positioned by the positioning component 5, and the bearing plate 41 is rotated on the two vertical rods 92 by the electric cylinder 1 44 so that the composite blank is vertical, and then the hinge shaft 651 is driven by the motor 1 652 to rotate so that the mounting block 65 rotates, and the submerged arc welding gun 69 is located directly above the opposite sides of the lower base plate 1 and the upper base plate 3 through the cooperation of the electric cylinder 2 612 and the electric cylinder 3 632, and close to the trapezoidal vertical strips 2. Control the submerged arc welding gun 69 to work, and make the bottom plate 61 slide on the base 9 through the electromagnetic slider 3 62, and through the cooperation of the motor 433, the submerged arc welding between the lower base plate 1 and the upper base plate 3 can be realized; after the submerged arc welding is completed, the bearing plate 41 is rotated and reset on the two vertical rods 92 through the electric cylinder 1 44, and the hinge shaft 651 is driven to rotate by the motor 1 652 to rotate the mounting block 65, so that the drill bit 73 is facing the trapezoidal connecting vertical bar 2, and the motor 2 74 is controlled to make the drill bit 73 rotate on the connecting plate 3 72, and the two electric push rods 1 71 are controlled to make the connecting plate 3 72 approach the direction of the trapezoidal connecting vertical bar 2, so as to realize the effect of opening a hole in the trapezoidal connecting vertical bar 2, and the operation is simple;

[0076] When vacuuming the composite blank, the motor 433 is controlled to rotate the turntable 42 so that the side of the composite blank with the air extraction hole 21 is facing the sliding plate 51, and the sliding block 82 is slid in the through groove 511, so that the vent pipe 83 is facing the air extraction hole 21. By driving the rod 52, the sliding plate 51 is moved closer to the circular hole 411 on the carrier plate 41, so that the vent pipe 83 and the composite blank are in conflict, and the vent pipe 83 is connected to the air extraction hole 21. The negative pressure pump 81 is controlled to work, and the air in the composite blank can be evacuated. The air is drawn out through the vent pipe 83, the second corrugated hose 86, the connecting pipe 84 and the first corrugated hose 85, so as to realize the vacuum effect inside the composite blank; by setting the sleeve plate 831 and the tension spring 832, the vent pipe 83 is movable in the horizontal direction and penetrates the sliding block 82, and the end of the vent pipe 83 close to the circular hole 411 can be inserted into the suction hole 21. When the composite blank is vacuumed, the vent pipe 83 and the inner side wall of the suction hole 21 form a conflict, which is conducive to the air in the composite blank to be drawn out, and, The driving rod 52 is rotated to make the sliding plate 51 approach the circular hole 411 on the carrying plate 41, so that when the sliding plate 51 is fitted with the lower substrate 1 and the vent pipe 83 is in contact with the composite blank, the vent pipe 83 slides on the sliding plate 51 in a direction away from the composite blank, and the tension spring 832 is deformed, so as not to affect the fitting of the sliding plate 51 with the lower substrate 1 to position the composite blank; by setting the negative pressure hole 422, the rotating joint 423, the negative pressure pipe 424, the connecting pipe 425 and the electromagnetic valve 841 Special design, during the welding process of the composite blank, after the lower substrate 1 is placed on the top of the carrier plate 41 and located on the turntable 42, the solenoid valve 841 is controlled to be closed. At this time, the negative pressure pump 81 is controlled to work, and the air at the negative pressure hole 422 can be pumped out through the connecting pipe 425, the rotating joint 423 and the negative pressure pipe 424, so that negative pressure is formed between the lower substrate 1 and the carrier plate 41, thereby achieving a negative pressure positioning effect between the lower substrate 1 and the carrier plate 41, and improving the positioning effect of the composite blank.

[0077] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0078] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A trapezoidal vertical strip composite blank, characterized in that: It includes a lower base plate, which has a rectangular cross-section. Trapezoidal connecting bars are sealed and welded on the edges around the top of the lower base plate. A composite plate is placed on the top of the lower base plate and between the opposite sides of the four trapezoidal connecting bars. The tops of the four trapezoidal connecting bars are sealed and welded with an upper base plate. The lower base plate and the upper base plate are welded and fixed by submerged arc welding. An exhaust hole that runs through one of the trapezoidal connecting bars is opened on the opposite sides of the lower base plate and the upper base plate.

2. A method for welding a trapezoidal vertical strip composite blank, using the trapezoidal vertical strip composite blank as claimed in claim 1, characterized in that: The welding method comprises the following steps: S1: placing the lower substrate: placing the lower substrate on a welding device, wherein the welding device comprises a bearing assembly, a positioning assembly, a welding assembly, a hole opening assembly and a gas extraction assembly, wherein the lower substrate is placed on the bearing assembly, wherein a sealing welding gun and a submerged arc welding gun are provided on the welding assembly; S2: Positioning the lower substrate: positioning the lower substrate placed on the supporting component by means of a positioning component; S3: placing and positioning the trapezoidal connecting bars: placing the trapezoidal connecting bars at one edge of the top of the lower base plate, positioning the trapezoidal connecting bars by means of the positioning assembly, so that the side wall of the trapezoidal connecting bars and the side wall of the lower base plate are located on the same vertical plane, and then horizontally rotating the lower base plate by means of the bearing assembly, placing the other three trapezoidal connecting bars in turn, and positioning the trapezoidal connecting bars by means of the positioning assembly; S4: Seal welding is performed between the four trapezoidal connecting bars and the lower base plate in sequence: the seal welding is performed between the trapezoidal connecting bars and the lower base plate by using the seal welding gun of the welding assembly, the lower base plate is horizontally rotated by the bearing assembly, the four trapezoidal connecting bars and the lower base plate are sealed and welded in sequence, and a doubler plate is placed between the four trapezoidal connecting bars; S5: placing the upper substrate: placing the upper substrate on the four trapezoidal connecting vertical bars, and positioning the upper substrate by a positioning assembly; S6: Perform sealing welding between the upper base plate and the four trapezoidal connecting bars: perform sealing welding between the trapezoidal connecting bars and the upper base plate by using the sealing welding gun of the welding assembly, perform horizontal rotation cooperation on the lower base plate by using the bearing assembly, and perform sealing welding between the four trapezoidal connecting bars and the upper base plate in turn; S7: Submerged arc welding: Submerged arc welding is performed to fix the lower base plate and the upper base plate by using a submerged arc welding gun of the welding assembly; S8: Opening a hole: opening an air extraction hole penetrating one of the trapezoidal connecting bars on opposite sides of the lower substrate and the upper substrate by using a hole opening component; S9: Vacuuming: connect the vacuum assembly to the vacuum hole, and vacuum the cavity between the lower substrate, the four trapezoidal connecting bars and the upper substrate through the vacuum assembly.

3. A method for welding a trapezoidal vertical strip composite blank according to claim 2, characterized in that: The welding equipment also includes a base, the bearing assembly is mounted on the base, the positioning assembly is mounted on the bearing assembly, the welding assembly is mounted on the base and located on one side of the bearing assembly, the opening assembly is mounted on the welding assembly, and the exhaust assembly is mounted on the base; The top of the base is symmetrically fixed with support rods, and the top of the base and one side of the two support rods are symmetrically fixed with vertical rods; The bearing assembly includes a bearing plate hinged on two vertical poles, a circular hole is opened on the top of the bearing plate, a through hole is opened on the inner bottom wall of the bearing plate and located in the circular hole, a turntable is rotatably installed in the circular hole, a rotating shaft that movably passes through the through hole is fixed at the bottom of the turntable, a driving member for driving the rotating shaft to rotate is installed on the bearing plate, an electric cylinder hinged to the bearing plate is hinged on the base, and the positioning assembly is installed on the bearing plate.

4. The welding method of a trapezoidal vertical strip composite blank according to claim 3, characterized in that: The driving member comprises a rotating rod rotatably mounted on the bottom of the bearing plate, one end of the rotating rod is connected to the rotating shaft through a bevel gear assembly, and a motor for driving the rotating rod to rotate is fixedly mounted on the bottom of the bearing plate.

5. The welding method of a trapezoidal vertical strip composite blank according to claim 4, characterized in that: The positioning assembly includes a sliding plate installed on the top of the supporting plate for sliding along the direction of the circular hole, a driving rod threadedly connected to the sliding plate is rotatably installed on the supporting plate, a horizontal through groove is opened on the sliding plate, and two positioning blocks are installed on the sliding plate and are located in the through groove and slide in the horizontal direction, an electromagnetic slider connected to the positioning block is installed on the sliding plate, one end of the positioning block extends to a side of the sliding plate close to the circular hole, and a moving plate is installed on the top of the positioning block for sliding along the direction of the sliding plate, a limiting plate is fixed on the side where the two moving plates are close to each other, a vertical electric push rod is fixed on the limiting plate, an extension plate is fixed on the bottom of the electric push rod, and an electromagnetic slider connected to the moving plate is fixedly installed on the positioning block.

6. A method for welding a trapezoidal vertical strip composite blank according to claim 5, characterized in that: The welding assembly includes a base plate on the top of the base that is slidably installed in the horizontal direction, the base plate is located on the side of the vertical rod away from the supporting rod, an electromagnetic slider three connected to the base plate is fixedly installed on the base, two telescopic rods one in the vertical direction are fixedly installed on the top of the base plate, a fixing block is fixed on the top of the two telescopic rods one, an electric cylinder two connected to the fixing block is fixedly installed on the top of the base plate, telescopic rods two are symmetrically fixed in a horizontal shape on the fixing block, the telescopic ends of the two telescopic rods two are fixedly installed with a bracket, an electric cylinder three connected to the bracket is fixedly installed on the fixing block, a mounting block is hinged on the bracket through a hinge shaft, a motor one connected to the hinge shaft is fixedly installed on the mounting block, a connecting plate one is fixedly installed on the side of the mounting block close to the bearing plate, a connecting plate two is fixedly installed on the bottom of the mounting block, a sealing welding gun is fixedly installed on the connecting plate two, a submerged arc welding gun is fixedly installed on the connecting plate one, and the opening assembly is installed at the bottom of the mounting block.

7. A method for welding a trapezoidal vertical strip composite blank according to claim 6, characterized in that: The hole opening assembly includes an electric push rod 1 which is symmetrically fixedly installed at the bottom of the mounting block and located on one side of a connecting plate 2. The piston rods of the two electric push rods 1 are fixed with a connecting plate 3. A drill bit is rotatably installed on the connecting plate 3 in a vertical direction. A motor 2 for driving the drill bit to rotate is fixedly installed on the connecting plate 3.

8. The welding method of a trapezoidal vertical strip composite blank according to claim 7, characterized in that: The vacuum assembly includes a negative pressure pump fixedly mounted on the base, a sliding block is slidably mounted in the groove and on the opposite sides of the two positioning blocks in a horizontal direction, a horizontal ventilation pipe is mounted on the sliding block, and a connecting pipe is fixedly mounted on the bottom of the supporting plate, one end of the connecting pipe is connected to the air inlet end of the negative pressure pump through a corrugated hose 1, and the other end is connected to the ventilation pipe through a corrugated hose 2.

9. A method for welding a trapezoidal vertical strip composite blank according to claim 8, characterized in that: The ventilation pipe is movable in the horizontal direction and penetrates the sliding block. The end of the ventilation pipe close to the circular hole can be inserted into the exhaust hole and form a conflict with the inner wall of the exhaust hole. A sleeve plate is fixed on the outer wall of the ventilation pipe and located on the side of the sliding block away from the circular hole. A tension spring sleeved on the outside of the ventilation pipe is fixedly installed between the sleeve plate and the opposite side of the sliding block.

10. A welding method for a trapezoidal vertical strip composite blank according to claim 9, characterized in that: The turntable is symmetrically provided with vertical negative pressure holes on both sides of the rotating shaft, a rotating joint is coaxially fixed to the outside of the rotating shaft, one end of the rotating joint is fixed with two negative pressure tubes respectively connected to the negative pressure holes, and the other end is fixed with a connecting pipe, an electromagnetic valve is installed on the connecting pipe, and the connecting pipe is connected with the connecting pipe at a side of the electromagnetic valve away from the second corrugated hose.

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