A forming press for an inner floating plate for oil and gas storage and transportation

Abstract

The present invention relates to the field of press technology, and discloses a forming press for an inner floating plate for oil and gas storage and transportation, comprising a main body, a workbench mounted on the main body, and a die fixed on the workbench, wherein a split punch for squeezing a workpiece is provided above the die, and the split punch comprises a punch at the bottom and a connecting plate at the top, and the punch and the die are used for preliminary shaping of the workpiece. The present invention sets a split punch so that the connecting plate and the punch portion can be separated, thereby making the joint smaller and tighter during bending and forming, and the preliminarily formed workpiece can be secondary formed by a clamping assembly and a separated connecting plate, thereby correcting the workpiece and ensuring that the joint is closed, and finally using a welding assembly to weld and fix the joint to avoid deformation of the pipe under stress. In this way, the bending forming of the buoy on the inner floating plate can be achieved, and the forming process has fewer steps, shorter time consumption, higher precision, and higher efficiency, which is conducive to the large-scale production of the inner floating plate.

Description

Technical Field

[0001] The invention relates to the technical field of presses, in particular to a forming press for an inner floating plate of an oil and gas storage and transportation system. Background Art

[0002] Forming machine tools are processing equipment used to change the shape of materials through plastic deformation. Their core principle is to apply external force to cause permanent deformation of materials such as metals, rather than cutting and removing materials. For example, stamping, forging, and bending are achieved by presses. The buoy structure on the floating platform of oil and gas storage and transportation is made by bending the metal sheet into a circular tube shape by a press, then welding the edges of the circular tube, and then welding end plates at both ends of the circular tube. Existing presses have certain shortcomings during processing: existing presses press the metal sheet into a circular tube shape in multiple times by driving an arc-shaped pressure head, but the pressure head itself will block the joints of the circular tube, resulting in poor closing effect of the circular tube. At this time, the circular tube still needs to be reshaped in subsequent steps and finally welded, which makes the processing cycle of the buoy longer and reduces the processing efficiency. Summary of the Invention

[0003] In response to the shortcomings of the existing technology, the present invention provides a forming press for an inner floating plate for oil and gas storage and transportation, which has the advantages of high processing efficiency and solves the problem that when the existing press is bending the float, the pressure head itself blocks the float joints, requiring secondary shaping, thereby reducing processing efficiency.

[0004] To solve the above technical problems, the present invention provides the following technical solutions: a forming press for an inner floating plate for oil and gas storage and transportation, comprising a main body, a workbench mounted on the main body, and a die fixed to the workbench; a split punch for extruding a workpiece is provided above the die; the split punch comprises a convex die at the bottom and a connecting plate at the top; the convex die and the concave die are used for preliminary shaping of the workpiece; the bottom end of the connecting plate is movably inserted into the convex die;

[0005] The main body is fixed with 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. Multiple groups of evenly distributed clamping assemblies are installed on both sides of the die. The clamping assemblies and the connecting plate are used for secondary bending and shaping of the workpiece.

[0006] A welding assembly is provided on one side of the split punch, and the welding assembly is used to pre-weld and fix the joint of the workpiece after secondary bending and shaping;

[0007] When the main hydraulic cylinder and the auxiliary hydraulic cylinder operate synchronously, the split punch is driven to move downward as a whole, and the workpiece is preliminarily processed into an unclosed circular tube. Then the main hydraulic cylinder drives the connecting plate to separate from the punch. After that, the main hydraulic cylinder, the auxiliary hydraulic cylinder and the clamping assembly operate to perform secondary extrusion and shaping on the bottom, top and side of the circular tube workpiece respectively. Finally, the welding assembly operates to weld and fix the joints of the circular tube workpiece after the secondary shaping.

[0008] Preferably, a slot is provided on the top surface of the punch, the bottom end of the connecting plate is inserted into the slot, a plurality of evenly distributed notches are provided on the bottom of the connecting plate, and the top of the connecting plate is fixedly connected to the output end of the master hydraulic cylinder.

[0009] Preferably, the auxiliary hydraulic cylinders are provided in two numbers, and a left end block and a right end block are fixed on both sides of the punch respectively. A left mounting sleeve is fixed on the left end block, and the left mounting sleeve is fixed to one of the output ends 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 component.

[0010] Preferably, the regulating component is used to drive the right mounting sleeve to separate from the right end block, and the regulating component includes a first slide rail, which is fixed to the output end of the auxiliary hydraulic cylinder, a first slider is slidably connected in the first slide rail, the first slider is fixedly connected to the right mounting sleeve, a first motor is fixed to the end of the first slide rail, a first screw is fixed to the output end of the first motor, the first screw passes through the first slider and is threadedly connected to the first slider, and both ends of the first screw are rotatably connected to the first slide rail.

[0011] Preferably, the clamping assembly includes a crank rod and an inclined hydraulic cylinder, one end of the crank rod is hinged to the side of the die, the other end of the crank 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 crank rod.

[0012] Preferably, a concave arc surface is provided at the bottom end of the connecting plate, and a convex arc surface is provided at the inner bottom wall of the slot, and the convex arc surface matches the concave arc surface.

[0013] 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 is fixed to the output end of the second motor, the second screw passes through the second slider and is threadedly connected to the second slider, both ends of the second screw 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, a mounting ring is fixed on the base shaft, a first hydraulic cylinder is fixed on the mounting ring, and the output end of the first hydraulic cylinder faces the split punch and is fixed with a welding gun head.

[0014] Preferably, a second hydraulic cylinder is fixed on the mounting ring, a sleeve is fixed on the output end of the second hydraulic cylinder, a pressure sensor is fixedly connected to the inside of the sleeve, a spring is fixedly connected to the pressure sensor, a probe is fixed on one end of the spring away from the pressure sensor, and one end of the probe extends to the outside of the sleeve.

[0015] 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 is meshed with the driven gear.

[0016] Preferably, a third slider is also slidably connected in the second slide rail, a through hole is opened on the third slider, a guide hole connected to the through hole is opened on the side of the third slider, a magnet is provided inside the through hole, a support rod is fixed on the side of the magnet, the support rod passes through the guide hole and extends to the outside of 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 to the support rod, and a unloading rod is fixed to the bottom of the third slider.

[0017] Compared with the prior art, the present invention provides a forming press for an inner floating plate for oil and gas storage and transportation, which has the following beneficial effects:

[0018] 1. The forming press of the inner floating plate of the oil and gas storage and transportation is provided with a split punch, so that the connecting plate and the punch part can be separated, so that the joint is smaller and tighter during bending and forming. The clamping assembly and the separated connecting plate can be used to perform secondary forming on the initially formed workpiece, so as to correct the workpiece and ensure the closure of the joint. Finally, the joint is welded and fixed with a welding assembly to avoid deformation of the pipe under stress. In this way, the buoy on the inner floating plate can be bent and formed, and the forming process is reduced, the time consumption is shortened, the precision is high, and the efficiency is high, which is conducive to the large-scale production of the inner floating plate.

[0019] 2. The forming press of the inner floating plate of the oil and gas storage and transportation is conducive to detecting the gap on the workpiece before welding by setting a sleeve, a pressure sensor, a spring, a probe and a second hydraulic cylinder, ensuring that the gap is in a closed state before welding, thereby improving the processing quality of the workpiece.

[0020] 3. The forming press of the floating plate of the oil and gas storage and transportation is provided with a regulating assembly, a third slide and a discharge rod. After welding is completed, the right mounting sleeve at one end of the punch is first removed by the auxiliary hydraulic cylinder and the regulating assembly, and then the workpiece on the punch is pushed by the discharge rod to make it fall from the punch, which is conducive to automatic unloading without manual operation, further improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the three-dimensional structure of the main body of the present invention Figure 1 ;

[0022] Figure 2 Schematic diagram of the three-dimensional structure of the main body of the present invention Figure 2 ;

[0023] Figure 3 It is a structural schematic diagram of the clamping assembly of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the welding assembly of the present invention;

[0025] Figure 5 is a cross-sectional view of the split punch of the present invention;

[0026] Figure 6 Schematic diagram of the structure of the control component of the present invention;

[0027] Figure 7 This is a schematic diagram of the installation structure of the welding gun head of the present invention;

[0028] Figure 8 Schematic diagram of the installation structure of the assembly plate of the present invention;

[0029] Figure 9 is a schematic structural diagram of a third slider of the present invention;

[0030] Figure 10 It is a cross-sectional view of the sleeve of the present invention.

[0031] In the figure: 1. Main body; 2. Workbench; 3. Die; 4. Split punch; 5. Punch; 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. Secondary hydraulic cylinder; 9. Clamping assembly; 91. Knee rod; 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. Guide hole; 121. Support rod; 122. Third hydraulic cylinder; 123. Unloading rod; 124. Magnet; 125. Second hydraulic cylinder; 126. Driving gear; 11. Adjustment assembly; 110. First slide rail; 120. First slider; 130. First motor; 140. First screw. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only 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 making creative efforts are within the scope of protection of the present invention.

[0033] As introduced in the background technology, there are deficiencies in the existing technology. In order to solve the above technical problems, the present application proposes a forming press for an inner floating plate of oil and gas storage and transportation.

[0034] Example 1: Please refer to Figure 1-Figure 4 A forming press for an inner floating plate for oil and gas storage and transportation comprises a main body 1, a workbench 2 mounted on the main body 1, and a die 3 fixed on the workbench 2. A split punch 4 for extruding a workpiece is provided above the die 3. The split punch 4 comprises a punch 5 at the bottom and a connecting plate 6 at the top. The punch 5 and the 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.

[0035] The main body 1 is fixed with 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. Multiple sets of evenly distributed clamping assemblies 9 are installed on both sides of the die 3. The clamping assemblies 9 and the connecting plate 6 are used for secondary bending and shaping of the workpiece.

[0036] A welding assembly 10 is provided on one side of the split punch 4, and the welding assembly 10 is used to pre-weld and fix the joint of the workpiece after secondary bending and shaping;

[0037] When the main hydraulic cylinder 7 and the auxiliary hydraulic cylinder 8 operate synchronously, the split punch 4 is driven to move downward as a whole, and the workpiece is preliminarily processed into an unclosed round tube. Then, the main hydraulic cylinder 7 operates to drive the connecting plate 6 to separate from the punch 5. Then, the main hydraulic cylinder 7, the auxiliary hydraulic cylinder 8 and the clamping assembly 9 operate to perform secondary extrusion and shaping on the bottom, top and side of the round tube workpiece respectively. Finally, the welding assembly 10 operates to weld and fix the joints of the round tube workpiece after the secondary shaping.

[0038] The workpiece in this embodiment is configured as a buoy structure on an inner floating plate. The raw material is a square metal plate, which is formed into a metal tube with uniform diameter. The bottom of the die 3 and the top of the punch 5 are both configured as arc surfaces. The workpiece is formed under the extrusion of the die 3 and the punch 5. Each set of clamping assemblies 9 is provided with two and symmetrically distributed on both sides of the die 3.

[0039] When in use, first place the plate on the die 3, start the main hydraulic cylinder 7 and the auxiliary hydraulic cylinder 8, drive the entire split punch 4 to move downward, and the extrusion of the punch 5 and the die 3 makes the workpiece partially bent into an arc. Specifically, first bend the two ends of the plate into a J shape, and finally squeeze the middle of the workpiece to form an unclosed pipe fitting. In actual operation, before squeezing the middle 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, and then start the auxiliary hydraulic cylinder 8 to only drive the punch 5 to move downward. The workpiece is squeezed to form an unclosed circular pipe, and the joint of the pipe is located directly above. At this time, the clamping assembly 9 and the main hydraulic cylinder 7 are started again. When the clamping assembly 9 is running, it clamps both sides of the pipe. When the main hydraulic cylinder 7 is running, it drives the connecting plate 6 to move downward. The connecting plate 6 squeezes the joint at the top of the pipe downward, and then bends the pipe twice to adjust the shape of the pipe and the size of the joint, so that the joint is combined. Finally, the welding assembly 10 is started, and the welding assembly 10 pre-welds and fixes the joint to prevent the pipe from deforming under stress.

[0040] By setting up the split punch 4, the connecting plate 6 and the punch 5 can be partially separated, so that the joint is smaller and tighter during bending and forming, and the clamping component 9 and the separated connecting plate 6 can be used to perform secondary forming on the initially formed workpiece, so as to correct the workpiece and ensure that the joint is closed. Finally, the joint is welded and fixed using the welding component 10 to avoid deformation of the pipe under stress. In this way, the buoy on the inner floating plate can be bent and formed, and the forming process is few, time-consuming, precise and efficient, which is conducive to the large-scale production of the inner floating plate.

[0041] Example 2: See Figure 3-Figure 6 , different from the above embodiment, the top surface of the punch 5 is provided with a slot 51, the bottom end of the connecting plate 6 is inserted into the slot 51, and the bottom of the connecting plate 6 is provided with a plurality of evenly distributed notches 61, the top of the connecting plate 6 is fixedly connected to the output end of the main hydraulic cylinder 7, and the auxiliary hydraulic cylinder 8 is provided with two, and a left end block 52 and a right end block 53 are fixed on both sides of the punch 5, respectively. A left mounting sleeve 54 is fixed on the left end block 52, and the left mounting sleeve 54 is fixed to the output end of one of the auxiliary hydraulic cylinders 8, and 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 auxiliary hydraulic cylinder 8 through the regulating component 11.

[0042] The cross section of the slot 51 matches the cross section shape of the connecting plate 6. The number of the main hydraulic cylinders 7 is set to multiple and evenly distributed on the connecting plate 6. When in use, the main hydraulic cylinder 7 and the auxiliary hydraulic cylinder 8 are started at the same time. The main hydraulic cylinder 7 directly pushes the connecting plate 6 downward. When the auxiliary hydraulic cylinder 8 is extended, it drives the left mounting sleeve 54 and the right mounting sleeve 55 downward, thereby pushing the left end block 52, the right end block 53 and the punch 5 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 the plate. Before the final bending operation is performed on the middle of the plate, in order to avoid the connecting plate 6 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 is contracted, it drives the connecting plate 6 to move upward, and then separates from the punch 5. Subsequently, only the auxiliary hydraulic cylinder 8 drives the punch 5 downward, so that the two ends of the bent plate are close to each other, forming an unclosed circular tube shape. At this time, the bottom of the connecting plate 6 is directly above the joint on the circular tube workpiece;

[0043] By setting the split punch 4 as a connecting plate 6 and a punch 5, and driving them respectively through the main hydraulic cylinder 7 and the auxiliary hydraulic cylinder 8, it is beneficial to separate the connecting plate 6 from the punch 5 in the later stage of bending, so as to avoid the connecting plate 6 blocking the two ends of the workpiece from approaching, so that the two ends of the workpiece can be closer to each other to a greater extent, the bending effect is better, the width of the seam is smaller, the accuracy of the first forming is improved, and the subsequent secondary forming is convenient.

[0044] Example 3, see Figure 3 and Figure 5 , different from the above embodiment, the clamping assembly 9 includes a turning rod 91 and an inclined hydraulic cylinder 92, one end of the turning rod 91 is hinged to the side of the die 3, and the other end of the turning rod 91 is fixedly connected to a clamping block 93, and the surface of the clamping block 93 is provided with a V-shaped groove, 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 part of the turning rod 91, the bottom end of the connecting plate 6 is provided with a concave arc surface, and the inner bottom wall of the slot 51 is provided with a convex arc surface, and the convex arc surface matches the concave arc surface.

[0045] The turning rod 91 is configured as a rod with two connected ends. The curvature of the convex surface matches the curvature of the outer wall of the finished workpiece to be processed. The two rods are integrally formed and the included angle is set to an acute angle. In the initial state, the inclined hydraulic cylinder 92 is retracted.

[0046] After the workpiece is initially formed, the main hydraulic cylinder 7 and the multiple groups of oblique hydraulic cylinders 92 are started. When the main hydraulic cylinder 7 is extended, the connecting plate 6 is driven downward, and the bottom of the connecting plate 6 is squeezed to the joint of the top surface of the workpiece after the initial formation. The concave arc surface at the bottom of the connecting plate 6 can position the two ends of the joint so that the heights of the two ends of the joint are consistent. The oblique hydraulic cylinder 92 is extended to push the turning rod 91, so that the turning rod 91 swings around one end, thereby driving the clamping block 93 at the other end of the turning rod 91 to move. Finally, the clamping block 93 contacts and squeezes the side of the initially formed workpiece, so that the joint at the top of the workpiece is merged.

[0047] By setting up a clamping component 9 and a connecting plate 6, and setting a concave arc surface at the bottom of the connecting plate 6, after the workpiece is initially formed, the connecting plate 6 is first used to press down the joint of the workpiece to position the two ends of the joint, and then the clamping component 9 is used to squeeze the two sides of the workpiece to close the joint, which is conducive to correcting the initially formed workpiece, closing the joint, and further improving the forming accuracy of the workpiece.

[0048] Example 4, see Figure 4-Figure 8 , different from the above embodiment, 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 103 is fixed to the output end of the second motor 102, the second screw 103 passes through the second slider 104 and is threadedly connected to the second slider 104, both ends of the second screw 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, a mounting ring 107 is fixed on the base shaft 106, a first hydraulic cylinder 108 is fixed on the mounting ring 107, and the output end of the first hydraulic cylinder 108 faces the split punch 4 and is fixed with a welding gun head 109.

[0049] Among them, the welding gun head 109 is externally connected to the welding machine, and the second slide rail 101, the second screw 103, and the base shaft 106 are all distributed parallel to the connecting plate 6. When in use, the second motor 102 is started. When the second motor 102 is running, the second screw 103 is driven to rotate. When the second screw 103 rotates, the second slider 104 is driven to slide, and then the assembly plate 105, the first hydraulic cylinder 108 and the welding gun head 109 are driven to move, so that the welding gun head 109 is moved to a position corresponding to the recess 61. Then, the first hydraulic cylinder 108 is started. When the first hydraulic cylinder 108 is extended, the welding gun head 109 is driven to be inserted into the recess 61. At this time, the welding gun head 109 is just aligned with the joint of the workpiece. The welding gun head 109 can be pre-welded at the joint when it is started. Repeat the above operation. The welding gun head 109 extends into each recess 61 in turn to achieve multi-point welding.

[0050] By setting up the welding assembly 10, after starting the welding assembly 10, the welding gun head 109 is inserted into each recess 61 in turn, and the joints are spot welded, thereby achieving fixation of the workpiece joints and preventing the formed workpiece from deforming under stress.

[0051] Example 5, see Figures 8-10, different from the above embodiment, a second hydraulic cylinder 125 is further fixed on the mounting ring 107, a sleeve 111 is fixed to the output end of the second hydraulic cylinder 125, a pressure sensor 112 is fixedly connected to the interior of the sleeve 111, a spring 113 is fixedly connected to the pressure sensor 112, a probe 114 is fixed to the end of the spring 113 away from the pressure sensor 112, one end of the probe 114 extends to the outside of the sleeve 111, a driven gear 115 is fixed to the base shaft 106, a third motor 116 is fixed to the assembly plate 105, a driving gear 126 is fixed to the output shaft of the third motor 116, and the driving gear 126 is meshed with the driven gear 115.

[0052] Among them, in actual application, the weld seam needs to be inspected for gaps before welding to ensure that the gap is completely closed. At this time, the third motor 116 is started, and 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 position, and then the second motor 102 is started. Similarly, the second motor 102 can drive 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 recess 61, and then the second hydraulic cylinder 125 is started. The second hydraulic cylinder 125 extends to drive the probe 114 to be inserted into the recess 61. , the probe 114 contacts the upper surface of the workpiece in the shape of a circular tube during this process, and the upper surface of the workpiece squeezes the probe 114, causing 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, and the pressure value detected by the pressure sensor 112 gradually increases. When the probe 114 moves to the top of the workpiece in the shape of a circular tube, it reaches the maximum value. If the joint at the top of the workpiece is not well closed, 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, rapid fluctuations will occur, so as to monitor whether the gap at this part is closed. If it is not closed, the clamping component 9 at this part is driven to further bend and correct the workpiece;

[0053] The provision of the sleeve 111, the pressure sensor 112, the spring 113, the probe 114 and the second hydraulic cylinder 125 facilitates detection of gaps on the workpiece before welding, ensuring that the gaps before welding are in a closed state, thereby improving the processing quality of the workpiece.

[0054] Example 6, see Figure 6-Figure 9, which is different from the above embodiment, the regulating component 11 is used to drive the right mounting sleeve 55 to separate from the right end block 53, and the regulating component 11 includes a first slide rail 110, which is fixed to the output end of the auxiliary hydraulic cylinder 8, and a first slider 120 is slidably connected to 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 140 is fixed to the output end of the first motor 130, and the first screw 140 passes through the first slider 120 and is threadedly connected to the first slider 120, and both ends of the first screw 140 are connected to the first The slide rail 110 is rotatably connected, and a third slider 117 is also slidably connected in the second slide rail 101. A through hole 118 is provided on the third slider 117, and a guide hole 119 connected to the through hole 118 is provided on the side of the third slider 117. A magnet 124 is provided 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 guide hole 119 and extends to the outside of the third slider 117. A third hydraulic cylinder 122 is also fixed on the third slider 117, and the output end of the third hydraulic cylinder 122 is fixedly connected to the support rod 121. A discharge rod 123 is fixed to the bottom of the third slider 117.

[0055] The second slider 104 and the second slide rail 101 are both made of steel, and the unloading rod 123 is set to be L-shaped. In the initial state, the magnet 124 is adsorbed on one end of the second slide rail 101, and the unloading rod 123 is located at one end of the workpiece;

[0056] During use, after the welding work is completed, the first motor 130 is started first. The operation of the first motor 130 drives the first screw 140 to rotate. When the first screw 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 is separated from the right end block 53. Then the auxiliary hydraulic cylinder 8 is started. The auxiliary hydraulic cylinder 8 contracts and drives the right mounting sleeve 55 to move upward. After that, the welding assembly 10 is started again. The second motor 102 is operated to drive the second slider 104 to move until the second slider 104 contacts the third slider 117. Then the third hydraulic cylinder 122 is started. , the third hydraulic extension drives the support rod 121 to move, thereby driving the magnet 124 to move. When the magnet 124 moves to the other end of the through hole 118, it is no longer adsorbed by the second slide rail 101, but adsorbed by the second slider 104, thereby fixing the third slider 117 to the second slider 104. Then, the second motor 102 drives the second slider 104 to move in the opposite direction again, and the second slider 104 drives the third slider 117 to move. When the third slider 117 moves, it drives the unloading rod 123 to move. When the unloading rod 123 moves, it pushes the welded tubular workpiece to remove the tubular workpiece from the punch 5;

[0057] By setting the regulating component 11, the third slider 117 and the unloading rod 123, after welding is completed, the right mounting sleeve 55 at one end of the punch 5 is first removed through the auxiliary hydraulic cylinder 8 and the regulating component 11, and then the workpiece on the punch 5 is pushed through the unloading rod 123 to make it fall from the punch 5, which is conducive to automatic unloading without manual operation, further improving production efficiency.

[0058] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A forming press for an inner floating plate for oil and gas storage and transportation, comprising a main body, a workbench mounted on the main body, and a die fixed on the workbench, characterized in that: A split punch for extruding the workpiece is provided above the die. The split punch includes a punch at the bottom and a connecting plate at the top. The punch and the die are used for preliminary shaping of the workpiece. The bottom end of the connecting plate is movably inserted into the punch. The main body is fixed with 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. Multiple groups of evenly distributed clamping assemblies are installed on both sides of the die. The clamping assemblies and the connecting plate are used for secondary bending and shaping of the workpiece. A welding assembly is provided on one side of the split punch, and the welding assembly is used to pre-weld and fix the joint of the workpiece after secondary bending and shaping; When the main hydraulic cylinder and the auxiliary hydraulic cylinder operate synchronously, the split punch is driven to move downward as a whole, and the workpiece is initially processed into an unclosed round tube. Then the main hydraulic cylinder drives the connecting plate to separate from the punch. After that, the main hydraulic cylinder, the auxiliary hydraulic cylinder and the clamping assembly operate to perform secondary extrusion and shaping on the bottom, top and side of the round tube workpiece respectively. Finally, the welding assembly operates to weld and fix the joints of the round tube workpiece after the secondary shaping. The bottom of the connecting plate is provided with a plurality of evenly distributed notches; The bottom end of the connecting plate is provided with a concave arc surface; 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 is fixed to the output end of the second motor, the second screw passes through the second slider and is threadedly connected to the second slider, both ends of the second screw 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, a mounting ring is fixed on the base shaft, a first hydraulic cylinder is fixed on the mounting ring, and the output end of the first hydraulic cylinder faces the split punch and is fixed with a welding gun head; A second hydraulic cylinder is also fixed on the mounting ring, a sleeve is fixed to the output end of the second hydraulic cylinder, a pressure sensor is fixedly connected to the interior of the sleeve, a spring is fixedly connected to the pressure sensor, a probe is fixed to the end of the spring away from the pressure sensor, and one end of the probe extends to the outside of the sleeve; 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 is meshed with the driven gear.

2. The forming press for the inner floating plate of oil and gas storage and transportation according to claim 1 is characterized in that: A slot is provided on the top surface of the punch, the bottom end of the connecting plate is plugged into the slot, and the top of the connecting plate is fixedly connected to the output end of the master hydraulic cylinder.

3. The forming press for the inner floating plate of oil and gas storage and transportation according to claim 2, characterized in that: There are two auxiliary hydraulic cylinders, and a left end block and a right end block are fixed on both sides of the punch respectively. A left mounting sleeve is fixed on the left end block, and the left mounting sleeve is fixed to one of the output ends 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 component.

4. The forming press for the inner floating plate of oil and gas storage and transportation according to claim 3 is 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 fixed 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 to the end of the first slide rail, and a first screw is fixed to the output end of the first motor. The first screw passes through the first slider and is threadedly connected to the first slider, and both ends of the first screw are rotatably connected to the first slide rail.

5. The forming press for the inner floating plate of oil and gas storage and transportation according to claim 4, characterized in that: The clamping assembly includes a crank rod and an inclined hydraulic cylinder. One end of the crank rod is hinged to the side of the die, and the other end of the crank rod is fixedly connected to a clamping block. A V-shaped groove is provided on the surface of the clamping block. 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 crank rod.

6. The forming press for the inner floating plate of oil and gas storage and transportation according to claim 5, characterized in that: A convex arc surface is provided on the inner bottom wall of the slot, and the convex arc surface matches the concave arc surface.

7. The forming press for the inner floating plate for oil and gas storage and transportation according to claim 6, characterized in that: A third slider is also slidably connected to the second slide rail, a through hole is provided on the third slider, a guide hole connected to the through hole is provided on the side of the third slider, a magnet is provided inside the through hole, a support rod is fixed to the side of the magnet, the support rod passes through the guide hole and extends to the outside of 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 to the support rod, and a discharge rod is fixed to the bottom of the third slider.

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