Forming press machine of oil and gas storage and transportation inner floating disc

Abstract

The invention relates to the technical field of press machines, and discloses a forming press machine of an oil and gas storage and transportation inner floating disc, the forming press machine comprises a main body, a workbench installed on the main body and a female die fixed on the workbench, a split punch used for extruding a workpiece is arranged above the female die, and the split punch comprises a male die at the bottom and a connecting plate at the top; and the male die and the female die are used for primarily shaping a workpiece. The split punch is arranged, so that the connecting plate and the male die part can be separated, a joint is smaller and tighter during bending forming, a preliminarily formed workpiece can be subjected to secondary forming through the clamping assembly and the separated connecting plate, the workpiece is corrected, it is guaranteed that the joint is closed, and finally the joint is welded and fixed through the welding assembly; by means of the mode, bending forming of the buoy on the inner floating disc can be achieved, the number of forming steps is small, consumed time is short, precision is high, efficiency is high, and large-scale production work of the inner floating disc is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of presses, and specifically to a forming press for internal floating disks in oil and gas storage and transportation. Background Art

[0002] A forming machine tool is a processing device used to change the shape of materials through plastic deformation. Its core principle is to apply an external force to cause permanent deformation of materials such as metals, rather than cutting away materials. For example, stamping, forging, bending, etc. achieved through presses. The floating cylinder structure on the internal floating disk in oil and gas storage and transportation is formed by bending a metal sheet into a circular tube shape through a press, then welding the edges of the circular tube, and finally welding end plates to both ends of the circular tube. Existing presses have certain deficiencies during processing: Existing presses drive an arc-shaped punch to press the metal sheet into a circular tube shape in multiple times, but the punch itself will block the joint of the circular tube, resulting in a poor closing effect of the circular tube. At this time, the circular tube still requires subsequent steps for secondary shaping and finally welding work, which lengthens the processing cycle of the floating cylinder and reduces the processing efficiency. Summary of the Invention

[0003] In view of the deficiencies of the prior art, the present invention provides a forming press for internal floating disks in oil and gas storage and transportation, which has advantages such as high processing efficiency, and solves the problem that existing presses need secondary shaping due to the punch itself blocking the joint of the floating cylinder during the bending process of the floating cylinder, thereby reducing the processing efficiency.

[0004] To solve the above technical problems, the present invention provides the following technical solution: A forming press for internal floating disks in oil and gas storage and transportation, including a main body, a workbench installed on the main body, and a female die fixed on the workbench. Above the female die, there is a split punch for extruding the workpiece. The split punch includes a punch at the bottom and a connecting plate at the top. The punch and the female die are used for preliminary shaping of the workpiece, and the bottom end of the connecting plate is movably inserted into the punch; A main hydraulic cylinder for driving the vertical movement of the connecting plate and a secondary hydraulic cylinder for driving the vertical movement of the punch are fixed on the main body. A plurality of groups of evenly distributed clamping components are installed on both sides of the female die. The clamping components and the connecting plate are both used for secondary bending and shaping of the workpiece; A welding component is arranged on one side of the split punch. The welding component is used for pre-welding and fixing the joint of the workpiece after secondary bending and shaping; When the main hydraulic cylinder and the secondary hydraulic cylinder operate synchronously, they drive the entire split punch to move downward, initially processing the workpiece into an unclosed circular tube. Subsequently, the main hydraulic cylinder operates to drive the separation of the connecting plate and the punch. Then, the main hydraulic cylinder, the secondary hydraulic cylinder, and the clamping components operate to respectively perform secondary extrusion and shaping on the bottom, top, and side of the circular tube workpiece. Finally, the welding component operates to weld and fix the joint of the circular tube workpiece after secondary shaping.

[0005] Preferably, a slot is formed in the top surface of the punch, the bottom end of the connecting plate is inserted into the slot, a plurality of uniformly distributed notches are formed in the bottom of the connecting plate, and the top of the connecting plate is fixedly connected to the output end of the main hydraulic cylinder.

[0006] Preferably, two auxiliary hydraulic cylinders are provided, a left end block and a right end block are respectively fixed on both sides of the punch, a left mounting sleeve is fixed on the left end block, the left mounting sleeve is fixedly connected to the output end of one of the auxiliary hydraulic cylinders, a right mounting sleeve is sleeved on the right end block, and the right mounting sleeve is connected to the output end of the other auxiliary hydraulic cylinder through a regulating assembly.

[0007] Preferably, the regulating assembly is used to drive the right mounting sleeve to separate from the right end block. The regulating assembly includes a first slide rail fixedly connected to the output end of the auxiliary hydraulic cylinder. A first slider is slidably connected in the first slide rail, and the first slider is fixedly connected to the right mounting sleeve. A first motor is fixed at the end of the first slide rail, a first screw rod is fixed to the output end of the first motor, the first screw rod passes through the first slider and is threadedly connected to the first slider, and both ends of the first screw rod are rotatably connected to the first slide rail.

[0008] Preferably, the clamping assembly includes a crank lever and an inclined hydraulic cylinder. One end of the crank lever is hinged to the side surface of the die, the other end of the crank lever is fixedly connected to a clamping block, a V-shaped groove is formed on the surface of the clamping block, one end of the inclined hydraulic cylinder is hinged to the side surface of the workbench, and the other end of the inclined hydraulic cylinder is hinged to the middle of the crank lever.

[0009] Preferably, a concave arc surface is provided at the bottom end of the connecting plate, a convex arc surface is provided on the inner bottom wall of the slot, and the convex arc surface matches the concave arc surface.

[0010] Preferably, the welding assembly includes a second slide rail fixed to the main body. A second slider is slidably connected in the second slide rail. A second motor is fixedly connected to the end of the second slide rail. A second screw rod is fixed to the output end of the second motor. The second screw rod passes through the second slider and is threadedly connected to the second slider. Both ends of the second screw rod are rotatably connected to the second slide rail. An assembly plate is fixed to the bottom of the second slider. A base shaft is rotatably connected to the assembly plate. An installation ring is fixed on the base shaft. A first hydraulic cylinder is fixed on the installation ring. The output end of the first hydraulic cylinder faces the split punch and is fixedly connected to a welding gun head.

[0011] Preferably, a second hydraulic cylinder is further fixed on the installation ring. A sleeve is fixed to the output end of the second hydraulic cylinder. A pressure sensor is fixedly connected inside the sleeve. A spring is fixedly connected to the pressure sensor. One end of the spring away from the pressure sensor is fixedly connected to a probe, and one end of the probe extends outside the sleeve.

[0012] Preferably, a driven gear is fixed on the base shaft, a third motor is fixed on the assembly plate, a driving gear is fixed on the output shaft of the third motor, and the driving gear meshes with the driven gear.

[0013] Preferably, a third slider is further slidably connected in the second slide rail. A through hole is formed in the third slider, a guiding hole communicating with the through hole is formed in the side surface of the third slider, a magnet is arranged inside the through hole, a support rod is fixed on the side surface of the magnet, the support rod penetrates through the guiding hole and extends to the outside of the third slider, a third hydraulic cylinder is further fixed on the third slider, the output end of the third hydraulic cylinder is fixedly connected with the support rod, and a discharging rod is fixed at the bottom of the third slider.

[0014] Compared with the prior art, the present invention provides a forming press for an internal floating roof in oil and gas storage and transportation, and has the following beneficial effects: 1. For the forming press for the internal floating roof in oil and gas storage and transportation, by arranging a split punch, the connecting plate and the punch part can be separated, so that the joint is smaller and tighter during bending forming. Moreover, through the clamping assembly and the separated connecting plate, the workpiece in the preliminary forming can be formed again to correct the workpiece, ensure the closure of the joint, and finally the joint is welded and fixed by the welding assembly to avoid the deformation of the pipe fitting under stress. In this way, the bending forming of the floating cylinder on the internal floating roof can be realized, and the forming steps are few, the time consumption is short, the precision is high, and the efficiency is high, which is beneficial to the large-scale production of the internal floating roof.

[0015] 2. For the forming press for the internal floating roof in oil and gas storage and transportation, by arranging a sleeve, a pressure sensor, a spring, a probe and a second hydraulic cylinder, it is beneficial to detect the gap on the workpiece before welding, ensure that the gap before welding is in a closed state, and improve the processing quality of the workpiece.

[0016] 3. For the forming press for the internal floating roof in oil and gas storage and transportation, by arranging a regulating assembly, a third slider and a discharging rod, after welding is completed, first the right mounting sleeve at one end of the punch is disassembled through the auxiliary hydraulic cylinder and the regulating assembly, and then the workpiece on the punch is pushed by the discharging rod to make it fall off the punch, which is beneficial to realize automatic blanking without manual operation and further improve the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic three-dimensional structure diagram of the main body of the present invention Figure 1 ; Figure 2 is a schematic three-dimensional structure diagram of the main body of the present invention Figure 2 ; Figure 3 is a schematic structural diagram of the clamping assembly of the present invention; Figure 4 is a schematic structural diagram of the welding assembly of the present invention; Figure 5 Cross-sectional view of the split punch of the present invention; Figure 6 Schematic structural diagram of the control component of the present invention; Figure 7 Schematic installation structure diagram of the welding gun head of the present invention; Figure 8 Schematic installation structure diagram of the assembly plate of the present invention; Figure 9 Schematic structural diagram of the third slider of the present invention; Figure 10 Cross-sectional view of the sleeve of the present invention.

[0018] In the figure: 1, main body; 2, workbench; 3, female die; 4, split punch; 5, male die; 51, slot; 52, left end block; 53, right end block; 54, left mounting sleeve; 55, right mounting sleeve; 6, connecting plate; 61, notch; 7, main hydraulic cylinder; 8, auxiliary hydraulic cylinder; 9, clamping assembly; 91, crank lever; 92, inclined hydraulic cylinder; 93, clamping block; 10, welding assembly; 101, second slide rail; 102, second motor; 103, second screw; 104, second slider; 105, assembly plate; 106, base shaft; 107, mounting ring; 108, first hydraulic cylinder; 109, welding gun head; 111, sleeve; 112, pressure sensor; 113, spring; 114, probe; 115, driven gear; 116, third motor; 117, third slider; 118, through hole; 119, guiding hole; 121, support rod; 122, third hydraulic cylinder; 123, unloading rod; 124, magnet; 125, second hydraulic cylinder; 126, driving gear; 11, control component; 110, first slide rail; 120, first slider; 130, first motor; 140, first screw. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] As introduced in the background art, there are deficiencies in the prior art. To solve the above technical problems, the present application proposes a forming press for internal floating roofs in oil and gas storage and transportation.

[0021] Embodiment 1: Please refer to Figures 1 - 4, A forming press for an internal floating disc in oil and gas storage and transportation, comprising a main body 1, a workbench 2 installed on the main body 1, and a female die 3 fixed on the workbench 2. Above the female die 3, there is a split punch 4 for extruding the workpiece. The split punch 4 includes a punch 5 at the bottom and a connecting plate 6 at the top. The punch 5 and the female die 3 are used for preliminary shaping of the workpiece. The bottom end of the connecting plate 6 is movably inserted into the punch 5; A main hydraulic cylinder 7 for driving the vertical movement of the connecting plate 6 and a secondary hydraulic cylinder 8 for driving the vertical movement of the punch 5 are fixed on the main body 1. A plurality of groups of evenly distributed clamping assemblies 9 are installed on both sides of the female die 3. The clamping assemblies 9 and the connecting plate 6 are both used for secondary bending and shaping of the workpiece; A welding assembly 10 is arranged on one side of the split punch 4. The welding assembly 10 is used for pre-welding and fixing the joint of the workpiece after secondary bending and shaping; When the main hydraulic cylinder 7 and the secondary hydraulic cylinder 8 operate synchronously, they drive the whole split punch 4 to move downward, and the workpiece is initially processed into an unclosed circular tube. Then, after the main hydraulic cylinder 7 operates, it drives the connecting plate 6 to separate from the punch 5. After that, the main hydraulic cylinder 7, the secondary hydraulic cylinder 8 and the clamping assemblies 9 operate, and respectively perform secondary extrusion and shaping on the bottom, top and side of the circular tube workpiece. Finally, the welding assembly 10 operates to weld and fix the joint of the circular tube workpiece after secondary shaping; Among them, the workpiece in this embodiment is set as the floating drum structure on the internal floating disc, the raw material is a square metal plate, and after forming, it is a metal circular tube with a uniform diameter. The bottom of the female die 3 and the top of the punch 5 are both set as arc surfaces. The workpiece is formed under the extrusion of the female die 3 and the punch 5. Each clamping assembly 9 is set as two and symmetrically distributed on both sides of the female die 3; During use, first place the plate on the female die 3, start the main hydraulic cylinder 7 and the secondary hydraulic cylinder 8, drive the whole split punch 4 to move downward. The extrusion of the punch 5 and the female die 3 makes the workpiece partially bend into an arc. Specifically, first bend the two ends of the plate into a J shape, and finally extrude the middle part of the workpiece to form an unclosed pipe fitting. In actual operation, before extruding the middle part of the workpiece, start the main hydraulic cylinder 7 to move the connecting plate 6 upward. After the connecting plate 6 moves upward, it separates from the punch 5. Then start the secondary hydraulic cylinder 8, only drive the punch 5 to move downward, extrude the workpiece to form an unclosed circular pipe fitting, and the joint of the pipe fitting is located directly above. At this time, start the clamping assemblies 9 and the main hydraulic cylinder 7. When the clamping assemblies 9 operate, they clamp both sides of the pipe fitting. When the main hydraulic cylinder 7 operates, it drives the connecting plate 6 to move downward. The connecting plate 6 squeezes the joint at the top of the pipe fitting downward, thereby performing secondary bending on the pipe fitting, adjusting the shape of the pipe fitting and the size of the joint, so that the joint is merged. Finally, start the welding assembly 10, and the welding assembly 10 pre-welds and fixes the joint to prevent the pipe fitting from deforming under stress; By setting the split punch 4, the connecting plate 6 and the punch 5 can be separated, so that the joint is smaller and tighter during the bending forming process. Moreover, through the clamping assembly 9 and the separated connecting plate 6, the workpiece in the preliminary forming stage can be formed again to correct the workpiece and ensure the closure of the joint. Finally, the welding assembly 10 is used to weld and fix the joint to prevent the pipe fitting from deforming under stress. In this way, the bending forming of the floating drum on the internal floating roof can be realized, and the forming process has fewer steps, shorter time consumption, high precision and high efficiency, which is beneficial to the large-scale production of the internal floating roof.

[0022] Embodiment 2: Refer to Figures 3 - 6 , which is different from the above embodiment. A slot 51 is provided on the top surface of the punch 5, and the bottom end of the connecting plate 6 is inserted into the slot 51. A plurality of uniformly distributed notches 61 are provided at the bottom of the connecting plate 6. The top of the connecting plate 6 is fixedly connected to the output end of the main hydraulic cylinder 7. Two sub-hydraulic cylinders 8 are provided. A left end block 52 and a right end block 53 are respectively fixed on both sides of the punch 5. A left mounting sleeve 54 is fixed on the left end block 52, and the left mounting sleeve 54 is fixedly connected to the output end of one of the sub-hydraulic cylinders 8. A right mounting sleeve 55 is sleeved on the right end block 53, and the right mounting sleeve 55 is connected to the output end of the other sub-hydraulic cylinder 8 through a regulating assembly 11.

[0023] Among them, the cross-section of the slot 51 matches the cross-section shape of the connecting plate 6. The number of main hydraulic cylinders 7 is set to be multiple and evenly distributed on the connecting plate 6. During use, the main hydraulic cylinder 7 and the sub-hydraulic cylinder 8 are started simultaneously. The main hydraulic cylinder 7 directly pushes the connecting plate 6 to move downward. When the sub-hydraulic cylinder 8 extends, it drives the left mounting sleeve 54 and the right mounting sleeve 55 to move downward, and then pushes the left end block 52, the right end block 53 and the punch 5 to move downward. At this time, the connecting plate 6 and the punch 5 move downward synchronously, and the pressure acts on the plate through the punch 5 to bend and form the plate. Before the final bending operation on the middle part of the plate, to prevent the connecting plate 6 from blocking the merging of the two ends of the plate, the main hydraulic cylinder 7 is started in advance. After the main hydraulic cylinder 7 contracts, it drives the connecting plate 6 to move upward, and then separates from the punch 5. Subsequently, only the sub-hydraulic cylinder 8 is used to drive the punch 5 to move downward, so that the two ends of the bent plate piece approach each other to form an unclosed cylindrical shape. At this time, the bottom of the connecting plate 6 is directly above the joint on the cylindrical workpiece. By setting the split punch 4 as the connecting plate 6 and the punch 5 and driving them respectively through the main hydraulic cylinder 7 and the sub-hydraulic cylinder 8, it is beneficial to separate the connecting plate 6 from the punch 5 in the later stage of bending, prevent the connecting plate 6 from blocking the approaching of the two ends of the workpiece, enable the two ends of the workpiece to approach to a greater extent, have a better bending effect, a smaller width of the joint, improve the precision of the first forming, and facilitate the subsequent secondary forming.

[0024] Embodiment 3, refer to Figure 3 and Figure 5, Different from the above embodiments, the clamping assembly 9 includes a bent rod 91 and an inclined hydraulic cylinder 92. One end of the bent rod 91 is hinged to the side of the female mold 3, and a clamping block 93 is fixedly connected to the other end of the bent rod 91. A V-shaped groove is provided on the surface of the clamping block 93. One end of the inclined hydraulic cylinder 92 is hinged to the side of the workbench 2, and the other end of the inclined hydraulic cylinder 92 is hinged to the middle of the bent rod 91. A concave arc surface is provided at the bottom end of the connecting plate 6, and a convex arc surface is provided on the inner bottom wall of the slot 51. The convex arc surface matches the concave arc surface.

[0025] Among them, the bent rod 91 is set as a rod connected by two ends. The radian of the convex arc surface matches the outer wall radian of the workpiece to be processed. The two rods are integrally formed and the included angle is set as an acute angle. In the initial state, the inclined hydraulic cylinder 92 contracts; After the workpiece is initially formed, the main hydraulic cylinder 7 and multiple groups of inclined hydraulic cylinders 92 are started. When the main hydraulic cylinder 7 extends, it drives the connecting plate 6 to move downward. The bottom of the connecting plate 6 presses the top joint of the initially formed workpiece, and the concave arc surface at the bottom of the connecting plate 6 can position both ends of the joint, making the heights of both ends of the joint the same. The inclined hydraulic cylinder 92 extends to push the bent rod 91, causing the bent rod 91 to swing around one end, and then driving the clamping block 93 at the other end of the bent rod 91 to move. Finally, the clamping block 93 contacts and presses the side of the initially formed workpiece, making the top joint of the workpiece merge; By setting the clamping assembly 9 and the connecting plate 6, and setting a concave arc surface at the bottom of the connecting plate 6, after the workpiece is initially formed, first use the connecting plate 6 to press down the joint of the workpiece, which can position both ends of the joint, and then squeeze the two sides of the workpiece through the clamping assembly 9 to close the joint, which is beneficial to correcting the initially formed workpiece, making the joint closed, and further improving the forming accuracy of the workpiece.

[0026] Embodiment 4, refer to Figures 4 - 8 , Different from the above embodiments, the welding assembly 10 includes a second slide rail 101 fixed to the main body 1. A second slider 104 is slidably connected in the second slide rail 101. A second motor 102 is fixedly connected to the end of the second slide rail 101. A second screw rod 103 is fixed to the output end of the second motor 102. The second screw rod 103 penetrates through the second slider 104 and is threadedly connected to the second slider 104. Both ends of the second screw rod 103 are rotatably connected to the second slide rail 101. An assembly plate 105 is fixed to the bottom of the second slider 104. A base shaft 106 is rotatably connected to the assembly plate 105. An installation ring 107 is fixed to the base shaft 106. A first hydraulic cylinder 108 is fixed to the installation ring 107. The output end of the first hydraulic cylinder 108 faces the split punch 4 and a welding gun head 109 is fixed.

[0027] Among them, the welding gun head 109 is externally connected to a welding machine. The second slide rail 101, the second screw rod 103, and the base shaft 106 are all distributed in parallel with the connecting plate 6. During use, the second motor 102 is started. When the second motor 102 operates, it drives the second screw rod 103 to rotate. When the second screw rod 103 rotates, it drives the second slider 104 to slide, thereby driving the assembly plate 105, the first hydraulic cylinder 108, and the welding gun head 109 to move, so that the welding gun head 109 moves to a position corresponding to the notch 61. Subsequently, the first hydraulic cylinder 108 is started. When the first hydraulic cylinder 108 extends, it drives the welding gun head 109 to insert into the notch 61. At this time, the welding gun head 109 is just aligned with the workpiece joint. Starting the welding gun head 109 can pre-weld the joint. Repeating the above operations, the welding gun head 109 extends into each notch 61 in turn to achieve multi-point welding; By setting the welding assembly 10, after starting the welding assembly 10, the welding gun head 109 is inserted into each notch 61 in turn, and spot welding is performed on the joint, thereby realizing the fixation of the workpiece joint and preventing the formed workpiece from deforming under stress.

[0028] Embodiment 5, refer to Figures 8 - 10 , different from the above embodiment, a second hydraulic cylinder 125 is further fixed on the mounting ring 107. The output end of the second hydraulic cylinder 125 is fixed with a sleeve 111. A pressure sensor 112 is fixedly connected inside the sleeve 111. A spring 113 is fixedly connected to the pressure sensor 112. One end of the spring 113 away from the pressure sensor 112 is fixed with a probe 114. One end of the probe 114 extends outside the sleeve 111. A driven gear 115 is fixed on the base shaft 106. A third motor 116 is fixed on the assembly plate 105. The output shaft of the third motor 116 is fixed with a driving gear 126. The driving gear 126 meshes with the driven gear 115.

[0029] Among them, in actual application, before welding, it is necessary to detect the gap of the weld seam to ensure that the gap is completely closed. At this time, the third motor 116 is started. The third motor 116 drives the driving gear 126 to rotate. When the driving gear 126 rotates, it drives the driven gear 115 to rotate. When the driven gear 115 rotates, it drives the base shaft 106 to rotate. When the base shaft 106 rotates, it drives the collar to rotate, so that the probe 114 on the collar moves to the initial detection station. Then the second motor 102 is started. Similarly, the second motor 102 can drive structures such as the assembly plate 105, the base shaft 106, and the probe 114 on the base shaft 106 to move, so that the probe 114 corresponds to the position of the notch 61. After that, the second hydraulic cylinder 125 is started. The second hydraulic cylinder 125 extends to drive the probe 114 to insert into the notch 61. During this process, the probe 114 contacts the upper surface of the workpiece in the shape of a circular tube. The extrusion of the upper surface of the workpiece on the probe 114 causes the probe 114 to move into the sleeve 111, thereby compressing the spring 113. The elastic force of the spring 113 acts on the pressure sensor 112. The pressure sensor 112 detects that the pressure value gradually increases and reaches the maximum value when the probe 114 moves to the top of the workpiece in the shape of a circular tube. If the seam at the top of the workpiece fails to close well, the probe 114 will be inserted into the gap under the elastic force of the spring 113 when passing through the gap, and the value detected by the pressure sensor 112 will also decrease rapidly, that is, there will be a rapid fluctuation, so as to monitor whether the gap at this part is closed. If there is an unclosed situation, the clamping assembly 9 at this place can be driven to further bend and correct the workpiece; By setting the sleeve 111, the pressure sensor 112, the spring 113, the probe 114 and the second hydraulic cylinder 125, it is beneficial to detect the gap on the workpiece before welding, ensure that the gap before welding is in a closed state, and improve the processing quality of the workpiece.

[0030] Embodiment Six, refer to Figures 6 - 9, different from the above embodiments, the regulation component 11 is used to drive the right mounting sleeve 55 to separate from the right end block 53. The regulation component 11 includes a first slide rail 110, which is fixed to the output end of the auxiliary hydraulic cylinder 8. A first slider 120 is slidably connected in the first slide rail 110, and the first slider 120 is fixedly connected to the right mounting sleeve 55. A first motor 130 is fixed to the end of the first slide rail 110, and a first screw rod 140 is fixed to the output end of the first motor 130. The first screw rod 140 passes through the first slider 120 and is threadedly connected to the first slider 120. Both ends of the first screw rod 140 are rotatably connected to the first slide rail 110. A third slider 117 is also slidably connected in the second slide rail 101. A through hole 118 is formed in the third slider 117, and a guiding hole 119 communicating with the through hole 118 is formed in the side of the third slider 117. A magnet 124 is arranged inside the through hole 118, and a support rod 121 is fixed to the side of the magnet 124. The support rod 121 passes through the guiding hole 119 and extends to the outside of the third slider 117. A third hydraulic cylinder 122 is also fixed to the third slider 117, and the output end of the third hydraulic cylinder 122 is fixedly connected to the support rod 121. A discharging rod 123 is fixed to the bottom of the third slider 117.

[0031] Among them, the second slider 104 and the second slide rail 101 are both made of steel. The discharging rod 123 is arranged in an L shape. In the initial state, the magnet 124 is adsorbed at one end of the second slide rail 101, and the discharging rod 123 is located at one end of the workpiece. During use, after the welding work is completed, first start the first motor 130. The operation of the first motor 130 drives the first screw rod 140 to rotate. When the first screw rod 140 rotates, it drives the first slider 120 to slide. When the first slider 120 slides, it drives the right mounting sleeve 55 to move, so that the right mounting sleeve 55 disengages from the right end block 53. Then start the auxiliary hydraulic cylinder 8. The contraction of the auxiliary hydraulic cylinder 8 drives the right mounting sleeve 55 to move upward. After that, start the welding component 10 again. The operation of the second motor 102 drives the second slider 104 to move until the second slider 104 contacts the third slider 117. Subsequently, start the third hydraulic cylinder 122. The extension of the third hydraulic cylinder drives the support rod 121 to move, and then drives the magnet 124 to move. When the magnet 124 moves to the other end of the through hole 118, it no longer adsorbs to the second slide rail 101, but adsorbs to the second slider 104, so that the third slider 117 is fixed to the second slider 104. Subsequently, drive the second slider 104 to move in the reverse direction again through the second motor 102. The second slider 104 drives the third slider 117 to move. When the third slider 117 moves, it drives the discharging rod 123 to move. When the discharging rod 123 moves, it pushes the welded tubular workpiece and unloads the tubular workpiece from the punch 5. By setting the control component 11, the third slider 117 and the unloading rod 123, after welding is completed, first disassemble the right mounting sleeve 55 at one end of the punch 5 through the auxiliary hydraulic cylinder 8 and the control component 11, and then push the workpiece on the punch 5 through the unloading rod 123 to make it fall off the punch 5, which is conducive to realizing automatic blanking without manual operation and further improving the production efficiency.

[0032] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A forming press for the internal floating roof of oil and gas storage and transportation, comprising a main body, a workbench installed on the main body, and a female mold fixed on the workbench, characterized in that: Above the female mold, there is a split punch for extruding the workpiece. The split punch includes a punch at the bottom and a connecting plate at the top. The punch and the female mold are used for preliminary shaping of the workpiece, and the bottom end of the connecting plate is movably inserted into the punch. On the main body, there is a main hydraulic cylinder for driving the vertical movement of the connecting plate and a sub-hydraulic cylinder for driving the vertical movement of the punch. On both sides of the female mold, multiple groups of evenly distributed clamping components are installed. The clamping components and the connecting plate are both used for secondary bending and shaping of the workpiece. On one side of the split punch, there is a welding component, which is used for pre-welding and fixing the joint of the workpiece after secondary bending and shaping. When the main hydraulic cylinder and the sub-hydraulic cylinder operate synchronously, they drive the whole split punch to move downwards, initially processing the workpiece into an unclosed circular tube. Subsequently, after the main hydraulic cylinder operates, it drives the connecting plate to separate from the punch. Then, the main hydraulic cylinder, the sub-hydraulic cylinder, and the clamping components operate, respectively performing secondary extrusion and shaping on the bottom, top, and side of the circular tube workpiece. Finally, the welding component operates to weld and fix the joint of the circular tube workpiece after secondary shaping.

2. The forming press for the internal floating roof of oil and gas storage and transportation according to claim 1, characterized in that: On the top surface of the punch, there is a slot, and the bottom end of the connecting plate is inserted into the slot. On the bottom of the connecting plate, there are multiple evenly distributed notches, and the top of the connecting plate is fixedly connected to the output end of the main hydraulic cylinder.

3. The forming press for the internal floating roof of oil and gas storage and transportation according to claim 2, characterized in that: There are two sub-hydraulic cylinders. On both sides of the punch, there are a left end block and a right end block respectively. On the left end block, there is a left mounting sleeve, which is fixedly connected to the output end of one of the sub-hydraulic cylinders. The right end block is sleeved with a right mounting sleeve, and the right mounting sleeve is connected to the output end of the other sub-hydraulic cylinder through a regulating component.

4. The forming press for the internal floating roof of oil and gas storage and transportation according to claim 3, characterized in that: The regulating component is used to drive the right mounting sleeve to separate from the right end block. The regulating component includes a first slide rail, which is fixedly connected to the output end of the sub-hydraulic cylinder. A first slider is slidably connected in the first slide rail, and the first slider is fixedly connected to the right mounting sleeve. At the end of the first slide rail, there is a first motor, and the output end of the first motor is fixedly connected to a first screw rod. The first screw rod passes through the first slider and is threadedly connected to the first slider. Both ends of the first screw rod are rotatably connected to the first slide rail.

5. The forming press for the internal floating roof of oil and gas storage and transportation according to claim 4, characterized in that: The clamping component includes a toggle rod and an inclined hydraulic cylinder. One end of the toggle rod is hinged to the side of the female mold, and the other end of the toggle rod is fixedly connected to a clamping block. The surface of the clamping block is provided with a V-shaped groove. One end of the inclined hydraulic cylinder is hinged to the side of the workbench, and the other end of the inclined hydraulic cylinder is hinged to the middle of the toggle rod.

6. The forming press for the internal floating roof of oil and gas storage and transportation according to claim 5, characterized in that: At the bottom end of the connecting plate, there is a concave arc surface, and on the inner bottom wall of the slot, there is a convex arc surface, and the convex arc surface matches the concave arc surface.

7. The forming press for the internal floating roof of oil and gas storage and transportation according to claim 6, characterized in that: The welding component includes a second slide rail fixed to the main body. A second slider is slidably connected in the second slide rail. At the end of the second slide rail, there is a second motor, and the output end of the second motor is fixedly connected to a second screw rod. The second screw rod passes through the second slider and is threadedly connected to the second slider. Both ends of the second screw rod are rotatably connected to the second slide rail. At the bottom of the second slider, there is an assembly plate, and a base shaft is rotatably connected to the assembly plate. On the base shaft, there is a mounting ring, and on the mounting ring, there is a first hydraulic cylinder, and the output end of the first hydraulic cylinder faces the split punch and is fixedly connected with a welding gun head.

8. The forming press for the internal floating roof of oil and gas storage and transportation according to claim 7, characterized in that: A second hydraulic cylinder is also fixed on the mounting ring. A sleeve is fixed at the output end of the second hydraulic cylinder. A pressure sensor is fixedly connected inside the sleeve. A spring is fixedly connected to the pressure sensor. One end of the spring, which is far away from the pressure sensor, is fixed with a probe, and one end of the probe extends outside the sleeve.

9. The forming press for the internal floating roof of oil and gas storage and transportation according to claim 8, characterized in that: A driven gear is fixed on the base shaft. A third motor is fixed on the assembly plate. A driving gear is fixed on the output shaft of the third motor, and the driving gear meshes with the driven gear.

10. The forming press for the internal floating roof of oil and gas storage and transportation according to claim 9, characterized in that: A third slider is also slidably connected in the second slide rail. A through hole is formed in the third slider. A guiding hole communicating with the through hole is formed in the side surface of the third slider. A magnet is arranged inside the through hole. A support rod is fixed on the side surface of the magnet. The support rod penetrates through the guiding hole and extends outside the third slider. A third hydraulic cylinder is also fixed on the third slider. The output end of the third hydraulic cylinder is fixedly connected with the support rod. A discharging rod is fixed at the bottom of the third slider.

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