Flexible adjustable automatic forming jig frame for steel lining of nuclear power station

Abstract

The invention discloses a flexible adjustable automatic forming jig frame for a steel lining of a nuclear power station. The flexible adjustable automatic forming jig frame comprises a base, a plurality of supporting bridges, a lifting base, a fixing base, a long edge pressing tool, a pressing beam and a control module. The supporting bridge is composed of a girder, first supporting wheels, first linear guide rails and a profiling supporting plate, the first supporting wheels are rotationally installed at the top of the girder in a linear distribution mode, and the first linear guide rails are horizontally and fixedly installed on the front face and the rear face of the girder. The flexible supporting bridge can be automatically adjusted into forming jig frames of different specifications to adapt to plate blanks of different sizes. In the workshop prefabrication process, the forming jig frame with the corresponding size does not need to be turned over and replaced when the steel lining product is replaced, the occupied area is saved, working hours are saved, and the production efficiency of the product is improved. The clamping and positioning automation degree of the plate blank is high, and the overall assembling and welding efficiency is improved. Meanwhile, due to the fact that the plate blank is clamped and pressed in place, welding quality is guaranteed, the deformation degree caused by welding heat is small, and a plate blank shaping procedure does not need to be carried out in the later period.

Description

Technical Field:

[0001] The invention belongs to the technical field of cylinder forming prefabrication in the prefabrication and forming construction of the steel lining slab of a nuclear power plant in a workshop, and particularly relates to a flexible adjustable automatic forming jig for the steel lining of a nuclear power plant. Background Art:

[0002] A large nuclear power plant reactor usually needs to add a shielding layer outside the reactor. The shape of the shielding layer is generally a cylinder with an extremely large diameter. Due to the large size, the steel lining of the cylinder is usually welded by multiple arc-shaped wall plates.

[0003] Existing prefabrication and forming technologies for the steel lining slab of a nuclear power plant all use prefabricated sizing forming jigs, and different specifications of forming jigs are prefabricated according to the reactor types and steel lining sizes of different projects, resulting in extremely high material and site occupation. In addition, the clamping, forming, and angle steel installation of the whole body steel plate are all completed manually, with low overall assembly welding efficiency and poor quality. Later, a slab sizing process is also required. During the workshop prefabrication process, when changing products, it is necessary to turnover and replace the forming jigs of corresponding sizes, occupying a large amount of preparation time and causing the production rhythm of products to remain high. Summary of the Invention:

[0004] The technical problem to be solved by the present invention is to provide a flexible adjustable automatic forming jig for the steel lining of a nuclear power plant, which is suitable for automatic assembly and prefabrication before automatic welding of multiple types of wall plates by robots.

[0005] To solve the above technical problem, the present invention is realized through the following technical solutions: A flexible adjustable automatic forming jig for the steel lining of a nuclear power plant includes a base, several support bridges, a lift seat, a fixed seat, a long side pressing tooling, a pressing beam, and a control module;

[0006] The support bridge is composed of a girder, a first support wheel, a first linear guide rail, and a profiling support plate. The first support wheels are rotatably installed on the top of the girder in a linear distribution. The axis of the rotation shaft of the first support wheel is parallel to the length direction of the girder. The first linear slide rail is horizontally fixedly installed on the front and rear surfaces of the girder. Several card slots are linearly distributed on the top of the girder, and two profiling support plates are symmetrically clamped and installed in the card slots on the top of the girder;

[0007] The long side pressing tooling is composed of a first slider, a first hydraulic cylinder, and a profiling pressing head. The first slider is slidably installed on the first linear guide rail. The cylinder body of the first hydraulic cylinder is fixedly installed on the first slider. The profiling pressing head is fixedly installed on the piston rod of the hydraulic cylinder. A first pressing bolt for pressing and fixing it on the girder is screwed and installed on the first slider;

[0008] The lift base is composed of a column, a support, a first electric lift, and a second linear guide rail. The second linear guide rail is vertically and fixedly installed on the column. The support is fixedly installed on the column. The first electric lift is fixedly installed on the support. A second slider is fixedly installed on the girder. The second slider is slidably installed on the second linear guide rail. The girder is fixedly connected to the piston rod of the first electric lift. A part of the support bridge, the long-side pressing tooling, and the lift base form a flexible support bridge;

[0009] A part of the support bridge, the long-side pressing tooling, and the fixed seat form a fixed support bridge. The girder of the support bridge is fixedly installed on the fixed seat;

[0010] The fixed seats of the two fixed support bridges are fixedly installed at the outer end position of the base. The columns of several flexible support bridges are fixedly installed at the middle position of the base;

[0011] Convex bearing seats are fixedly installed on both sides of the girder of the flexible support bridge. Both ends of the pressing beam are slidably inserted and installed on the convex bearing seats. Several pressing mechanisms are fixedly installed on the pressing beam.

[0012] Preferably, it further includes a horizontal pushing mechanism composed of a third slider, a second hydraulic cylinder, and an electric roller. The third slider is slidably installed on the first linear guide rail of the support bridge located in the middle position. The cylinder body of the second hydraulic cylinder is fixedly installed on the third slider. The bracket of the electric roller is fixedly installed on the piston rod of the second hydraulic cylinder. A second pressing bolt for pressing and fixing it on the girder is screwed and installed on the third slider. The support bridge located in the middle position, the lift base, and the horizontal pushing mechanism form a slab conveying mechanism.

[0013] Preferably, it further includes a longitudinal adjustment mechanism and a vertical lifting mechanism;

[0014] The longitudinal adjustment mechanism is composed of a first support frame, a third linear slide rail, a pushing cylinder, a wheel bracket, and a positioning idler wheel. The third linear slide rail is horizontally and fixedly installed on the front and rear sides of the first support frame. The cylinder bodies of two pushing cylinders are fixedly installed on the top of the first support frame. Two wheel brackets are slidably installed on the third linear slide rail. The piston rods of the two pushing cylinders are respectively fixedly connected to the wheel brackets on both sides. The positioning idler wheel is vertically rotatably installed on the wheel bracket. The first support frame is fixedly installed on the base;

[0015] The vertical lifting mechanism is composed of a second support frame, a lifting beam, guide columns, a second electric elevator, and lifting wheels. The upper ends of the two guide columns are fixedly installed at the bottom of the lifting beam, and the lower parts of the two guide columns are slidably installed in the second support frame. Several lifting wheels are rotatably installed at the top of the lifting beam in a linear array. The axial direction of the rotating shaft of the lifting wheel is perpendicular to the length direction of the second support frame. The second electric elevator is fixedly installed on the second support frame. The piston rod of the second support frame is fixedly connected to the lifting beam. The first support frame is fixedly installed on the base.

[0016] Preferably, the pressing mechanism fixedly installed on the pressing beam is composed of an upper plate, a lower plate, a connecting plate, a nut seat, a first screw rod, and a first pressing head. The upper plate and the lower plate are respectively fixedly installed at the upper and lower ends of the connecting plate. The upper plate and the lower plate are both set as U-shaped plate structures. The upper plate and the lower plate are slidably buckled and installed on the top and bottom surfaces of the pressing beam. The connecting plate is located inside the pressing beam. The nut seat is fixedly installed inside the connecting plate. A nut is fixedly installed on the nut seat. The first screw rod slidably passes through the upper plate and the lower plate and is screwed with the nut. The first pressing head is fixedly installed at the lower end of the first screw rod. A transverse rotating shaft is fixedly installed at the upper end of the first screw rod.

[0017] Preferably, rubber-coated bearings are rotatably installed at the four corners of the upper plate, and the rubber-coated bearings are rotatably placed on the top surface of the pressing beam.

[0018] Preferably, short-side pressing tools are also provided on the two fixed support bridges. The short-side pressing tools are composed of support angle steels, hanging plates, fourth sliders, C-shaped clamps, second screw rods, second pressing heads, and long-side limiting plates. Several hanging plates and long-side limiting plates are both clamped and installed in the card slots at the top of the main beams of the fixed support bridges. Several fourth sliders are fixedly installed on the support angle steels. The top of the hanging plate is provided with a dovetail-shaped slide rail. The fourth slider is also slidably installed on the dovetail-shaped slide rail at the top of the hanging plate. A third pressing bolt for pressing and fixing the fourth slider on the hanging plate is screwed and installed on the fourth slider. The lower end of the C-shaped clamp is fixedly installed inside the fourth slider. The second screw rod is screwed and installed at the upper end of the C-shaped clamp. The second pressing head is fixedly installed at the bottom of the second screw rod.

[0019] Preferably, anti-fall grid plates are fixedly installed on the main beams, and protective fences are fixedly installed on both sides of the base.

[0020] Preferably, flanges are fixedly provided at both ends of the base, and multiple bases are connected and fixed through the flanges.

[0021] Preferably, the base is fixedly installed in the equipment foundation pit, and a hydraulic station and a control cabinet are also provided in the equipment foundation pit.

[0022] Preferably, the number of the flexible support bridges is set to be 15 - 25.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] 1. The flexible support bridge can be automatically adjusted into forming tire racks of different specifications to adapt to slab billets of different sizes. During the prefabrication process in the workshop, when replacing steel lining products, there is no need to turnover and replace the corresponding-sized forming tire racks, saving floor space, working hours, and improving the production efficiency of products.

[0025] 2. The clamping and positioning of the slab billet are highly automated, and the overall assembly welding efficiency is improved. At the same time, due to the clamping and pressing of the slab billet in place, the welding quality is ensured, the deformation degree caused by welding heat is small, and there is no need for a slab billet shaping process in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS:

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] Figure 1 is a perspective view of the present invention.

[0028] Figure 2 is a perspective view of the flexible support bridge.

[0029] Figure 3 is Figure 2 an enlarged structural view of the M position of

[0030] Figure 4 is a perspective view of the elevator seat.

[0031] Figure 5 is a perspective view of the slab billet conveying mechanism.

[0032] Figure 6 is a perspective view of the longitudinal adjustment mechanism.

[0033] Figure 7 is a perspective view of the vertical lifting mechanism.

[0034] Figure 8 is a perspective view of the base.

[0035] Figure 9 is a perspective view of the pressing beam.

[0036] Figure 10 is a perspective view of the pressing mechanism.

[0037] Figure 11 is a perspective view of the short-side pressing tooling.

[0038] Figure 12 is Figure 11 an enlarged structural view of the N position of DETAILED DESCRIPTION OF THE INVENTION:

[0039] The present invention will be described in detail below in conjunction with the specific embodiments:

[0040] As Figures 1 to 12 shown, a flexible adjustable automatic forming jig for the steel lining of a nuclear power plant, comprising a base 2, several support bridges 3, a lift seat, a fixed seat 401, a long-side pressing tool 4, a pressing beam 7 and a control module;

[0041] The support bridge 3 is composed of a girder 34, a first support wheel 35, a first linear guide rail 37 and a profiling support plate 310. The first support wheels 35 are rotatably installed at the top of the girder 34 in a linear distribution. The axis of the rotating shaft of the first support wheel 35 is parallel to the length direction of the girder 34. The first linear slide rail 37 is horizontally and fixedly installed on the front and rear surfaces of the girder 34. Several card slots 341 are arranged at the top of the girder 34 in a linear distribution. Two profiling support plates 310 are symmetrically clamped and installed in the card slots 341 at the top of the girder 34. The profiling support plates 310 can be removed and adjusted in their installation positions to support slab blanks of different width dimensions. The number of the first support wheels 35 is set to 19, and the card slots 341 are arranged between two first support wheels 35.

[0042] The long-side pressing tool 4 is composed of a first slider 38, a first hydraulic cylinder 39 and a profiling press head 391. The first slider 38 is slidably installed on the first linear guide rail 37. The cylinder body of the first hydraulic cylinder 39 is fixedly installed on the first slider 38. The profiling press head 391 is fixedly installed on the piston rod of the hydraulic cylinder 39. A first pressing bolt for pressing and fixing it on the girder 34 is screwed and installed on the first slider 38. The long-side pressing tool 4 can provide a pressure of 3-5 tons. When the pressing is in place, the first hydraulic cylinder 39 is self-locked. The first slider 38 can move arbitrarily in the length direction along the first linear guide rail 37 on the girder 34 to adapt to slab blanks of different widths. One set is arranged at each end of each girder. Starting the first hydraulic cylinder 39 to push the profiling press head 391 to press and fix the slab blank on the profiling support plate 310 can automatically control the start and stop of the first hydraulic cylinder 39 without affecting the loading and unloading of the slab blank. The pressing point is directly above the girder 34, and the slab blank can be pressed flexibly and effectively.

[0043] The lift seat is composed of a column 30, a support 31, a first electric lift 32 and a second linear guide 33. The second linear guide 33 is vertically and fixedly installed on the column 30, and the support 31 is fixedly installed on the column 30. The column 30 is supported by a profiled steel to ensure the stability of the operation of the first electric lift 32. The column 30 has bolt holes at its base and is fixed to the base 2 through anchor bolts. The first electric lift 32 is fixedly installed on the support 31. A second slider is fixedly installed on the girder 34, and the second slider is slidably installed on the second linear guide 33. The girder 34 is fixedly connected to the piston rod of the first electric lift 32. Part of the support bridge 3, the long-side pressing tooling 4 and the lift seat form a flexible support bridge; the contact surfaces of the profiling punch 391 and the profiling support plate 310 with the slab are set as arc surface structures corresponding to the preset formed steel liner, so as to increase the contact area. When generating steel liners of different sizes, the profiling punch 391 and the profiling support plate 310 are removed and replaced.

[0044] Part of the support bridge 3, the long-side pressing tooling 4 and the fixed seat 401 form a fixed support bridge. The girder 34 of the support bridge 3 is fixedly installed on the fixed seat 401; the fixed support bridges at both left and right ends of the base 2 are the lowest points of the curvature of the jig. When the heights of the support bridges at both ends of the jig are higher, when presenting the same curvature, the highest point of the equipment will also be higher. The higher the equipment is, the less safe it will be for technicians to work on the equipment. Therefore, fixed support bridges are adopted on both sides of the jig to keep the height of the lowest point of the curvature of the jig fixed, control the overall height of the jig from being too high, improve the safety of working on the equipment, and at the same time, the fixed support bridge is cheaper than the flexible support bridge, saving the manufacturing cost of the jig.

[0045] The fixed seats 401 of the two fixed support bridges are fixedly installed at the outer ends of the base 2, and the columns 30 of several flexible support bridges are fixedly installed at the middle position of the base 2;

[0046] Convex bearing seats 701 are fixedly installed on both sides of the girder 34 of the flexible support bridge. The two ends of the pressing beam 7 are slidably inserted and installed on the convex bearing seats 710, and several pressing mechanisms are fixedly installed on the pressing beam 7.

[0047] It further includes a horizontal pushing mechanism 4 which is composed of a third slider 40, a second hydraulic cylinder 41 and an electric roller 42. The third slider 40 is slidably installed on the first linear guide rail 37 of the support bridge 3 located at the middle position. The cylinder body of the second hydraulic cylinder 41 is fixedly installed on the third slider 40. The bracket of the electric roller 42 is fixedly installed on the piston rod of the second hydraulic cylinder 41. A second pressing bolt for pressing and fixing it on the girder 34 is screwed and installed on the third slider 40. The support bridge 3 located at the middle position, the lift seat and the horizontal pushing mechanism 4 form a slab conveying mechanism. The two groups of second hydraulic cylinders 41 of the slab conveying mechanism realize the lifting of the electric roller 42. The two groups of electric rollers 42 drive the slab to displace in its length direction. The third slider 40 can be manually adjusted to slide on the first linear guide rail 37. After the adjustment is completed, the second pressing bolt is tightened to lock and position it to adapt to slabs of different widths.

[0048] It further includes a longitudinal adjustment mechanism 5 and a vertical lifting mechanism 6. Two groups of the longitudinal adjustment mechanism 5 and the vertical lifting mechanism 6 are symmetrically arranged on both sides of the slab conveying mechanism to realize stable support for the slab to be formed.

[0049] The longitudinal adjustment mechanism 5 is composed of a first support frame 50, a third linear slide rail 51, a pushing cylinder 52, a wheel bracket 53 and a positioning roller 54. The third linear slide rail 51 is horizontally and fixedly installed on the front and rear sides of the first support frame 50. The cylinder bodies of two pushing cylinders 52 are fixedly installed on the top of the first support frame 50. Two wheel brackets 53 are slidably installed on the third linear slide rail 51. The piston rods of the two pushing cylinders 52 are respectively fixedly connected to the wheel brackets 53 on both sides. The positioning roller 54 is vertically rotatably installed on the wheel bracket 53. The first support frame 50 is fixedly installed on the base 2. The longitudinal adjustment mechanism 5 is used to adjust the position of the slab in the width direction. The positioning roller 54 is set at a certain height and can adapt to the limits of steel liners of different models, playing an auxiliary guiding role when the slab moves along its length direction.

[0050] The vertical lifting mechanism 6 is composed of a second support frame 60, a lifting beam 61, guide columns 62, a second electric lift 63, and lifting wheels 64. The upper ends of the two guide columns 62 are fixedly installed at the bottom of the lifting beam 61, and the lower parts of the two guide columns 62 are slidably installed in the second support frame 60. Several lifting wheels 64 are rotatably installed at the top of the lifting beam 61 in a linear array. The axial direction of the rotating shaft of the lifting wheel 64 is perpendicular to the length direction of the second support frame 60. The second electric lift 63 is fixedly installed on the second support frame 60. The piston rod of the second support frame 60 is fixedly connected to the lifting beam 61. The first support frame 60 is fixedly installed on the base 2. When the slab is adjusted in position by the longitudinal adjustment mechanism 5, the second electric lift jacks up the lifting beam 61 and the lifting wheels 64. At this time, the lifting wheels 64 jack up the slab to separate it from the first support wheels 35. According to the adjustment requirements, the piston rod of one of the push cylinders 52 retracts to pull the wheel support 53 and the positioning roller 54 to move inward along the third linear slide rail 51. The positioning roller 54 pulls the slab to slide on the lifting wheels 64 to adjust the position of the slab in the width direction. After the adjustment is completed, the second electric lift drives the lifting beam 61 and the lifting wheels 64 to move downward and reset. The lifting wheels 64 are separated from the bottom surface of the slab, and the bottom surface of the slab falls on the first support wheels 35.

[0051] The pressing mechanism fixedly installed on the pressing beam 7 is composed of an upper plate 71, a lower plate 72, a connecting plate 73, a nut seat 74, a first screw rod 75, and a first pressing head 77. The upper plate 71 and the lower plate 72 are respectively fixedly installed at the upper and lower ends of the connecting plate 73. The upper plate 71 and the lower plate 72 are both set as U-shaped plate structures. The upper plate 71 and the lower plate 72 are slidably buckled and installed on the top and bottom surfaces of the pressing beam 7. The connecting plate 73 is located inside the pressing beam 7. The nut seat 74 is fixedly installed inside the connecting plate 73. A nut is fixedly installed on the nut seat 74. The first screw rod 75 slidably passes through the upper plate 71 and the lower plate 72 and is screwed with the nut. The first pressing head 77 is fixedly installed at the lower end of the first screw rod 75. A transverse rotating shaft 77 is fixedly installed at the upper end of the first screw rod 75. The pressing beam 7 is welded by two channel steels and is penetrated in the middle, and three groups of pressing mechanisms can be placed. The pressing mechanism can slide arbitrarily along the length direction of the pressing beam 7 and press the slab. At the same time, the pressing mechanism can also press long angle steels and short angle steels with different fixed positions to facilitate the subsequent welding of the long angle steels and short angle steels with the slab. The three groups of pressing mechanisms arranged on each pressing beam 7 are tightened by an electric wrench and are self-locking after pre-tightening. The first pressing head 77 contacts the top surface of the slab, and the pressing beam 7 does not contact the top surface of the convex bearing seat 710 to ensure that the gravity of the pressing beam 7 acts on the slab through the first pressing head 77.

[0052] Four corners of the upper plate 71 are rotatably installed with rubber-coated bearings 78. The rubber-coated bearings 78 are rotatably placed on the top surface of the pressing beam 7, which facilitates the position adjustment of the pressing mechanism when sliding on the pressing beam 7.

[0053] There is also a short-side pressing tooling 8 arranged on the two fixed support bridges. The short-side pressing tooling 8 is composed of a support angle steel 80, a hanging plate 81, a fourth slider 82, a C-type clamp 83, a second screw rod 84, a second pressing head 85 and a long-side limiting plate 86. Several hanging plates 81 and long-side limiting plates 86 are both clamped and installed in the clamping slots 341 at the top of the fixed support bridge girder 34. Several fourth sliders 82 are fixedly installed on the support angle steel 80. A dovetail-shaped slide rail is arranged at the top of the hanging plate 81. The fourth slider 82 is also slidably installed on the dovetail-shaped slide rail at the top of the hanging plate 81. A third pressing bolt for pressing and fixing the fourth slider 82 on the hanging plate 81 is screwed and installed on the fourth slider 82. The lower end of the C-type clamp 83 is fixedly installed in the fourth slider 82. The second screw rod 84 is screwed and installed at the upper end of the C-type clamp 83. The second pressing head 85 is fixedly installed at the bottom of the second screw rod 84. To effectively control the welding deformation at the edge of the slab, in addition to the hydraulic cylinder pressing in the long side direction of the slab, the slab is clamped by a manual C-type clamp in the short side direction of the slab for overall continuous pressing. The short-side clamping tooling is equipped with long-side limiting plates 86 of different sizes to assist in the long-side limiting of slabs of different sizes. After the two ends of the slab are limited by the long-side limiting plates 86, start the long-side pressing tooling 4 to press and fix the long side of the slab, then remove the long-side limiting plates 86, loosen the third pressing bolt, push the combination of the support angle steel 80 and the fourth slider 82 to approach the short side of the slab along the dovetail-shaped slide rail, then tighten the third pressing bolt to fix the fourth slider 82, and tighten the second screw rod 84 to drive the second pressing head 85 to press and fix the short side of the slab.

[0054] An anti-fall grille plate 342 is fixedly installed on the girder 34. Protective fences 10 are fixedly installed on both sides of the base 2. The protective fences 10 have two layers of safety enclosing measures. The outermost layer is arranged along the outer edge of the equipment foundation pit 1, and the inner layer is arranged along the jig. Anti-fall grille plates 342 are arranged on both sides of the support bridge 3 in the form of detachable buckle plates, ensuring the safety of operators. The anti-fall grille plate 342 moves up and down following the girder 34 of the flexible support bridge. The protective fence 10 is installed on the base 2 and is of a fixed structure and does not move up and down following the girder 34 of the flexible support bridge.

[0055] Flanges 21 are fixedly arranged at both ends of the base 2. Multiple bases 2 are connected and fixed through the flanges 21 to facilitate the connection and fixation of the bases 2.

[0056] The base 2 is fixedly installed in the equipment foundation pit 1, and a hydraulic station 91 and a control cabinet 92 are also provided in the equipment foundation pit 1. The control module is installed in the control cabinet 92. The first electric lift 32, the electric roller 42, and the second electric lift 63 are connected to the control module through a circuit. The first hydraulic cylinder 39 and the second hydraulic cylinder 41 are connected to the hydraulic station 91 through a solenoid valve and a pipeline. The push cylinder 52 is connected to the air pressure station through a solenoid valve and a pipeline. The solenoid valve, the hydraulic station 91, and the air pressure station are all connected to the control module through a circuit. The above-mentioned electric lift is a screw drive with a power-off self-locking function. The screw self-locking can keep the slab in the same position for a long time without the need for an additional locking mechanism. The driving motor of the electric lift is an AC servo motor with an absolute encoder, which ensures that the synchronous motion accuracy is less than 1mm, the repeated positioning accuracy is less than 0.2mm, and the maximum lifting speed is 350mm / min. A single electric lift can withstand a maximum static load of 8T and a maximum dynamic load of 1.5T.

[0057] The control module has a one-key forming function, which automatically forms the arc according to the slab design data, and the forming arc meets the design requirements. Local deviations can be compensated and adjusted by manually setting compensation data.

[0058] For commonly used slabs, a separate program number can be created and stored according to the specifications of the steel lining wall panels. The stored and solidified programs can be called at any time during later production.

[0059] The arc calculation formula is as follows: the distance between the fixed support bridges a; the distance between the installation reference surface and the center of the circle b; the distance between the fixed support bridge and the flexible support bridge c n ; Fixed support bridge height h 0 ; The radius of the steel lining after the slab is formed r; The theoretical rise height of the flexible support bridge h 1， h 1 The calculation formula is as follows:

[0060]

[0061] The number of the flexible support bridges is set to 18, and the 18 flexible support bridges are symmetrically and equidistantly distributed on both sides of the slab conveying mechanism.

[0062] The workflow from slab forming to steel lining is as follows:

[0063] 1. According to the drawing to be processed, set the position parameters (radian) of the flexible tire frame, and the flexible support bridge group of the tire frame will automatically adjust into place.

[0064] 2. The operator lifts the slab and gently places it on the tire frame.

[0065] 3. The slab is moved to a suitable position in its width direction through the cooperation of the longitudinal adjustment mechanism 5 and the vertical lifting mechanism 6.

[0066] 4. Adjust the slab to a proper position in its length direction through the slab conveying mechanism.

[0067] 5. Start the first hydraulic cylinders 39 of the long-side pressing tooling 4 to press the slab.

[0068] 6. The operator hoists the angle steel reinforcement to the designed position on the drawing.

[0069] 7. Hoist the appropriate number of pressing beams 7 as required.

[0070] 8. The operator installs the pressing beams 7 at both ends of the main beam 34.

[0071] 9. Start all the first hydraulic cylinders 39 of the long-side pressing tooling 4 to press the slab.

[0072] 10. Manually press the slab with the short-side pressing tooling 8.

[0073] 11. Start the welding operation of welding the angle steel reinforcement to the slab.

[0074] 12. After welding is completed, the operator starts to open and remove the pressing beams.

[0075] 13. Open all the pressing devices on the slab.

[0076] 14. The operator hoists and removes the slab to enter the next process.

Claims

1. A flexible and adjustable automatic forming tire frame for a nuclear power plant steel lining, characterized in that: It comprises a base (2), a plurality of supporting bridges (3), a lifting base, a fixing base (401), a long side clamping tool (4), a clamping beam (7) and a control module; The support bridge (3) is composed of a beam (34), a first support wheel (35), a first linear guide rail (37) and a contoured support support plate (310); the first support wheel (35) is linearly distributed and rotatably mounted on the top of the beam (34); the axis of the rotation shaft of the first support wheel (35) is parallel to the length direction of the beam (34); the first linear guide rail (37) is horizontally fixedly mounted on the front and rear surfaces of the beam (34); a plurality of slots (341) are linearly distributed on the top of the beam (34); and two contoured support plates (310) are symmetrically clamped and mounted in the slots (341) on the top of the beam (34); The long side pressing tool (4) is composed of a first slider (38), a first hydraulic cylinder (39) and a contour pressing head (391), wherein the first slider (38) is slidably mounted on a first linear guide rail (37), a cylinder body of the first hydraulic cylinder (39) is fixedly mounted on the first slider (38), the contour pressing head (391) is fixedly mounted on a piston rod of the hydraulic cylinder (39), and a first clamping bolt for clamping and fixing the first slider (38) on the beam (34) is threadedly mounted on the first slider (38); The lift seat is composed of a column (30), a support (31), a first electric lift (32) and a second linear guide rail (33); the second linear guide rail (33) is vertically fixedly mounted on the column (30); the support (31) is fixedly mounted on the column (30); the first electric lift (32) is fixedly mounted on the support (31); a second slider is fixedly mounted on the beam (34); the second slider is slidably mounted on the second linear guide rail (33); the beam (34) is fixedly connected to a piston rod of the first electric lift (32); a part of the support bridge (3), the long side clamping tool (4) and the lift seat form a flexible support bridge; A portion of the support bridge (3), the long side pressing tool (4) and the fixing seat (401) form a fixed support bridge, and the beam (34) of the support bridge (3) is fixedly mounted on the fixing seat (401); Two fixed support bridge fixing seats (401) are fixedly installed at the outer ends of the base (2), and a plurality of flexible support bridge columns (30) are fixedly installed at the middle of the base (2); Convex bearing seats (701) are fixedly mounted on both sides of the beam (34) of the flexible support bridge, and both ends of the clamping beam (7) are slidably embedded in the convex bearing seats (710), and a plurality of clamping mechanisms are fixedly mounted on the clamping beam (7).

2. The flexible and adjustable automatic forming tire frame for the steel lining of a nuclear power plant according to claim 1 is characterized by: It also includes a horizontal pushing mechanism (4) consisting of a third slider (40), a second hydraulic cylinder (41) and an electric roller (42), wherein the third slider (40) is slidably mounted on a first linear guide rail (37) of a support bridge (3) located in the middle, a cylinder body of the second hydraulic cylinder (41) is fixedly mounted on the third slider (40), a bracket of the electric roller (42) is fixedly mounted on a piston rod of the second hydraulic cylinder (41), and a second clamping bolt for clamping and fixing the third slider (40) on the beam (34) is threadedly mounted on the third slider (40), and the support bridge (3) located in the middle, the lifting base and the horizontal pushing mechanism (4) form a slab conveying mechanism.

3. The flexible and adjustable automatic forming tire frame for the steel lining of a nuclear power plant according to claim 1 is characterized by: It also includes a longitudinal adjustment mechanism (5) and a vertical lifting mechanism (6); The longitudinal adjustment mechanism (5) is composed of a first support frame (50), a third linear slide rail (51), a push cylinder (52), a wheel bracket (53) and a positioning wheel (54), wherein the third linear slide rail (51) is horizontally fixedly mounted on the front and rear sides of the first support frame (50), the cylinder bodies of the two push cylinders (52) are fixedly mounted on the top of the first support frame (50), the two wheel brackets (53) are slidably mounted on the third linear slide rail (51), the piston rods of the two push cylinders (52) are respectively fixedly connected to the wheel brackets (53) on both sides, the positioning wheel (54) is vertically rotatably mounted on the wheel bracket (53), and the first support frame (50) is fixedly mounted on the base (2); The vertical lifting mechanism (6) is composed of a second support frame (60), a lifting beam (61), a guide column (62), a second electric lift (63) and a lifting wheel (64), wherein the upper ends of the two guide columns (62) are fixedly mounted on the bottom of the lifting beam (61), and the lower parts of the two guide columns (62) are slidably mounted in the second support frame (60), and a plurality of lifting wheels (64) are rotatably mounted on the top of the lifting beam (61) in a linear array, and the axial direction of the rotating shaft of the lifting wheel (64) is arranged perpendicular to the length direction of the second support frame (60), the second electric lift (63) is fixedly mounted on the second support frame (60), the piston rod of the second support frame (60) is fixedly connected to the lifting beam (61), and the first support frame (60) is fixedly mounted on the base (2).

4. The flexible and adjustable automatic forming tire frame for the steel lining of a nuclear power plant according to claim 1 is characterized by: The clamping mechanism fixedly mounted on the clamping beam (7) comprises an upper plate (71), a lower plate (72), a connecting plate (73), a nut seat (74), a first screw rod (75) and a first pressing head (77); the upper plate (71) and the lower plate (72) are fixedly mounted on the upper and lower ends of the connecting plate (73) respectively; the upper plate (71) and the lower plate (72) are both configured as U-shaped plate structures; the upper plate (71) and the lower plate (72) are slidably fastened and mounted on the top and bottom surfaces of the clamping beam (7); the connecting plate (73) is located in the clamping beam (7); the nut seat (74) is fixedly mounted in the connecting plate (73); a nut is fixedly mounted on the nut seat (74); the first screw rod (75) slides through the upper plate (71) and the lower plate (72) and is screwed to the nut; the first pressing head (77) is fixedly mounted on the lower end of the first screw rod (75); and a transverse shaft (77) is fixedly mounted on the upper end of the first screw rod (75).

5. The flexible and adjustable automatic forming jig for steel lining of nuclear power plant according to claim 1 is characterized by: The four corners of the upper plate (71) are rotatably mounted with rubber-coated bearings (78), and the rubber-coated bearings (78) are rotatably placed on the top surface of the pressing beam (7).

6. The flexible and adjustable automatic forming jig for steel lining of nuclear power plant according to claim 1 is characterized by: The two fixed support bridges are also provided with short side clamping tools (8), the short side clamping tools (8) are composed of a support angle steel (80), a hanging plate (81), a fourth slider (82), a C-type clamp (83), a second screw rod (84), a second pressure head (85) and a long side limit plate (86), a plurality of hanging plates (81) and a long side limit plate (86) are all clamped and installed in a clamping groove (341) at the top of the fixed support bridge beam (34), and a plurality of fourth sliders (82) are fixedly installed on the support angle steel (80). The hanging plate (81) is provided with a dovetail slide rail at the top, the fourth slider (82) is also slidably mounted on the dovetail slide rail at the top of the hanging plate (81), the fourth slider (82) is screwed with a third clamping bolt for clamping and fixing it on the hanging plate (81), the lower end of the C-type clamp (83) is fixedly mounted in the fourth slider (82), the second screw rod (84) is screwed on the upper end of the C-type clamp (83), and the second pressure head (85) is fixedly mounted at the bottom of the second screw rod (84).

7. The flexible and adjustable automatic forming jig for steel lining of nuclear power plant according to claim 1 is characterized by: An anti-falling grid plate (342) is fixedly mounted on the beam (34), and guardrails (10) are fixedly mounted on both sides of the base (2).

8. The flexible and adjustable automatic forming jig for steel lining of nuclear power plant according to claim 1 is characterized by: Flanges (21) are fixedly provided at both ends of the base (2), and a plurality of bases (2) are connected and fixed via the flanges (21).

9. The flexible and adjustable automatic forming jig for nuclear power plant steel lining according to claim 1 is characterized by: The base (2) is fixedly installed in the equipment foundation pit (1), and a hydraulic station (91) and a control cabinet (92) are also arranged in the equipment foundation pit (1).

10. The flexible and adjustable automatic forming jig for nuclear power plant steel lining according to claim 1 is characterized by: The number of the flexible support bridges is set to 15-25.

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