Lung lobe magnetic shielding processing and turnover auxiliary tooling

Abstract

The utility model belongs to transformer, lung lobe magnetic shielding for commutation is used in the field, relates to lung lobe magnetic shielding processing and overturning auxiliary frock, including from bottom to top bottom frame, lower bolster plate and upper pressing plate, and the lower bolster plate includes lower bolster plate frame, movable bolster plate and back baffle, and the lower bolster plate frame includes front crossbeam, rear crossbeam and connecting plate two, and front crossbeam and rear crossbeam are welded in the both ends of connecting plate two, and the movable bolster plate is movably installed in the both sides of connecting plate two, and the both ends of movable bolster plate are slidably connected with front crossbeam and rear crossbeam respectively, and the outer side of movable bolster plate rear end movably installs side face limiting assembly, and side face limiting assembly is slidably connected with rear crossbeam, and the outer side of movable bolster plate front end movably installs camber surface limiting assembly, and camber surface limiting assembly is slidably connected with front crossbeam. The utility model auxiliary frock design is ingenious, and the lung lobe magnetic shielding is fixed, and does not hurt insulation and does not shift;The auxiliary frock structure is simple, and easy operation and high safety can satisfy the lung lobe magnetic shielding processing and the auxiliary overturning of many radius, the head position of many lung lobes.

Description

Technical Field

[0001] This utility model belongs to the field of magnetic shielding production technology for transformers and converter transformers, specifically relating to a lung-shaped magnetic shielding processing and flipping auxiliary tooling for ultra-high voltage transformers and converter transformers. Background Technology

[0002] Lung-shaped magnetic shielding is an important component in ultra-high voltage transformers and high-end and low-end converter transformers. It is installed at the upper and lower ends of each core column to attract leakage flux in the main channel, improve the leakage flux distribution at the ends, and reduce the additional losses of structural components and the hot spot temperature rise of the product.

[0003] The lung lobe magnetic shield consists of a cavity (made of laminated cardboard), a silicon steel sheet, a top cover (made of laminated cardboard), and side covers. A silicon steel sheet weighing up to 450 kg is installed inside the laminated cardboard cavity. The manufacturing process of the lung lobe magnetic shield requires a high degree of precision, and the top cover is relatively thin (2 mm thick), while the side covers are fixed with only two insulating bolts.

[0004] "Lung lobe magnetic shielding" is a commonly used existing product in this field. The installation sequence is as follows: place the lower cavity shell; stack silicon steel sheets inside the lung lobe-shaped cavity shell; attach and install the top cover plate; install and attach the side cover plates; and finally, flip the entire lung lobe magnetic shielding. Due to the design structure, the lung lobe magnetic shielding often needs to be flipped 180° before installation, meaning one side of the top cover plate is flipped to the bottom before installation. Therefore, the flipping of the lung lobe magnetic shielding is particularly important. During the flipping process, it is essential to ensure that the lung lobe magnetic shielding is undamaged, the top and side cover plates are not deformed, and the silicon steel sheets inside the cavity are not loose or slipped. Currently, the lung lobe magnetic shielding requires multiple layers of reinforcing straps and two layers of channel steel for tightening. It then requires multiple lifting and positioning operations using a crane and an L-shaped flipping platform to complete the flipping process. This is time-consuming, labor-intensive, and prone to damage to the lung lobe magnetic shielding, leading to uncontrollable product quality during the flipping process. Summary of the Invention

[0005] To address the aforementioned technical problems, this utility model provides an auxiliary tooling for processing and flipping magnetic shielding of lung lobes. The technical solution adopted by this utility model is as follows:

[0006] A tooling for processing and flipping magnetic shielding of lung lobes includes a base frame, a lower support plate, and an upper pressure plate, arranged sequentially from bottom to top. The lower support plate includes a lower support plate frame, a movable support plate, and a rear side baffle. The lower support plate frame includes a front crossbeam, a rear crossbeam, and a connecting plate. The middle positions of the front and rear crossbeams are welded to both ends of the connecting plate. Movable support plates are movably installed on both sides of the connecting plate. The front and rear ends of the movable support plates are slidably connected to the front and rear crossbeams, respectively. Side limiting components are movably installed on the outer rear end of the movable support plate. A pair of side limiting components are slidably connected to the rear crossbeam. Arc-shaped limiting components are movably installed on the outer front end of the movable support plate. A pair of arc-shaped limiting components are slidably connected to the front crossbeam. The rear side baffle is detachably installed on the rear side of the rear crossbeam.

[0007] Preferably, a lifting base plate is fixedly installed along the length of the rear crossbeam. The lifting base plate includes an upper lifting plate and a lower mounting plate that are movably snapped together to form a rectangular box. Several lead screws are connected by a coupling. The outer ends of the lead screws at both ends are rotatably installed at both ends of the lower mounting plate. The outer end of one of the lead screws extends outward and is fixedly connected to a crank handle. Several parallel pairs of wedge blocks are evenly distributed in the rectangular box. A threaded nut block is fixedly connected between the two ends of a pair of wedge blocks. The threaded nut block is threadedly connected to the lead screw. The lower inner surface of the upper lifting plate is integrally formed with a lifting ramp. The position and shape of the lifting ramp match the wedge blocks.

[0008] Preferably, six guide optical axes are evenly welded to the rear surface of the rear crossbeam along its length, and six guide holes are opened on the rear baffle at the positions corresponding to the guide optical axes. The rear baffle is detachably installed on the rear crossbeam through the guide optical axes, and a pair of fork guide grooves are symmetrically welded to the lower surfaces of the front and rear crossbeams respectively.

[0009] Preferably, the arc-shaped limiting component includes a triangular arc-shaped limiting plate, an arc-shaped limiting slider is rotatably installed at the lower part of the middle corner of the arc-shaped limiting plate, an arc-shaped limiting rod is installed on the front side of the arc-shaped limiting slider, and an arc-shaped limiting locking knob is connected to the front end of the arc-shaped limiting rod.

[0010] Preferably, the side limiting assembly includes a side limiting slider and a side limiting wheel installed above the side limiting slider. A side limiting rod is installed on the front side of the side limiting slider, and the front end of the side limiting rod is connected to a side limiting locking knob.

[0011] Preferably, the upper pressure plate includes two parallel upper steel beams, the front upper steel beam being shorter than the rear upper steel beam, a pair of upper pressure plate forks are fixedly installed between the two upper steel beams, and several lower steel beams are fixedly installed between the two upper steel beams, with several rubber pads evenly distributed and fixedly installed on the lower surface of each lower steel beam.

[0012] Preferably, both the connecting plate 2 and the movable support plate are fitted with phenolic fabric sheets using nylon countersunk screws.

[0013] Preferably, the base frame includes columns and a connecting plate 1 assembled as one piece. The connecting plate 1 is a hollow flat plate with a front length shorter than a rear length. There are six columns, with three columns evenly distributed on the front and rear sides of the connecting plate 1 along its length. The upper end of the column passes through the connecting plate 1 and extends upward from the top of the connecting plate 1. A traveling wheel is installed at the lower end of the column, and a circular truncated bracket is welded or integrally formed at the upper end of the column.

[0014] A tooling for processing and flipping magnetic shielding of lung lobes includes a base frame, a lower support plate, and an upper pressure plate II, arranged sequentially from bottom to top. The lower support plate includes a lower support plate frame, a movable support plate, and a rear side baffle. The lower support plate frame includes a front crossbeam, a rear crossbeam, and a connecting plate II. The middle positions of the front and rear crossbeams are welded to both ends of the connecting plate II. Movable support plates are movably installed on both sides of the connecting plate II. The front and rear ends of the movable support plates are slidably connected to the front and rear crossbeams, respectively. Side limiting components are movably installed on the outer rear end of the movable support plate. A pair of side limiting components are slidably connected to the rear crossbeam. Arc-shaped limiting components are movably installed on the outer front end of the movable support plate. A pair of arc-shaped limiting components are slidably connected to the front crossbeam. The rear side baffle is detachably installed on the rear side of the rear crossbeam.

[0015] Preferably, the second upper pressure plate includes a second upper pressure plate crossbeam, a pair of second upper pressure plate fork slots are fixedly disposed in the middle of the upper surface of the second upper pressure plate crossbeam, and a number of second upper pressure plate straight tooth forks are welded to the front surface of the second upper pressure plate crossbeam, and a phenolic cloth board is fixedly disposed on the lower surface of each second upper pressure plate straight tooth fork.

[0016] The beneficial effects of this utility model are:

[0017] The auxiliary tooling of this utility model has an ingenious design concept. It adopts a movable pallet, a side limiting component, and an arc-shaped limiting component to fix the lung lobe magnetic shield through six-point limiting, without damaging the insulation or causing displacement. The auxiliary tooling has a simple structure, is easy to operate, and has high safety. It can meet the processing and auxiliary flipping of lung lobe magnetic shields with various radii and protrusion positions, which can effectively improve work efficiency. It can be used not only in the transformer and converter transformer industry, but also for flipping semi-circular precision-machined parts, and has a wide range of application prospects. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is an exploded view of the processing and flipping auxiliary tooling of Embodiment 1 of this utility model;

[0020] Figure 2This is a three-dimensional structural diagram of the base frame of Embodiment 1 of this utility model;

[0021] Figure 3 This is a top view of the base frame of Embodiment 1 of this utility model;

[0022] Figure 4 This is a three-dimensional structural diagram of the lower support plate according to Embodiment 1 of this utility model;

[0023] Figure 5 This is an exploded view of the lower support plate according to Embodiment 1 of this utility model;

[0024] Figure 6 This is a top-view perspective three-dimensional structural diagram of the lower support plate frame according to Embodiment 1 of this utility model;

[0025] Figure 7 This is a three-dimensional structural diagram of the lower support plate frame of Embodiment 1 of this utility model from a bottom view angle;

[0026] Figure 8 This is an exploded view of the installation of the rear baffle in Embodiment 1 of this utility model;

[0027] Figure 9 This is a three-dimensional structural schematic diagram of the arc-shaped limiting component according to Embodiment 1 of this utility model;

[0028] Figure 10 This is a three-dimensional structural diagram of the side limiting component according to Embodiment 1 of this utility model;

[0029] Figure 11 This is an exploded view of the movable tray in Embodiment 1 of this utility model;

[0030] Figure 12 This is a cross-sectional view of the installation and mating of the rear end of the movable tray in Embodiment 1 of this utility model;

[0031] Figure 13 This is an exploded view of the lifting base plate according to Embodiment 1 of this utility model;

[0032] Figure 14 This is a partial three-dimensional structural view of the lower mounting plate of Embodiment 1 of this utility model;

[0033] Figure 15 This is a partial three-dimensional structural diagram of the upper lifting plate of Embodiment 1 of this utility model;

[0034] Figure 16 This is a three-dimensional structural diagram of the upper pressure plate of Embodiment 1 of this utility model;

[0035] Figure 17 This is a three-dimensional structural diagram of the upper pressure plate 2 in Embodiment 2 of this utility model;

[0036] Figure 18This is a schematic diagram of the use, processing, and flipping auxiliary tooling of Embodiment 3 of this utility model;

[0037] In the diagram, 1 is the lung lobe magnetic shield, 2 is the base frame, 3 is the lower support plate, 4 is the upper pressure plate one, 5 is the column, 6 is the connecting plate one, 7 is the traveling wheel, 8 is the support seat, 9 is the lower support plate frame, 10 is the movable support plate, 11 is the rear side baffle, 12 is the lifting base plate, 13 is the arc-shaped limiting assembly, 14 is the side limiting assembly, 15 is the smooth rod, 16 is the fork guide groove, 17 is the rear crossbeam, 18 is the front crossbeam, 19 is the connecting plate two, 20 is the reinforcing frame, 21 is the slide groove one, and 22 is the slide groove. 2. 23 is a quick-release steel lock head, 24 is the inner surface of the rear baffle, 25 is the bottom edge of the inner surface of the rear baffle, 26 is a reinforcing rib, 27 is the upper lifting plate, 28 is the lower mounting plate, 29 is a lead screw, 30 is a wedge block, 31 is a coupling, 32 is a crank handle, 33 is a lead screw nut block, 34 is a lifting ramp, 35 is an upper steel beam, 36 is a first fork groove in the upper pressure plate, 37 is a lower steel beam, 38 is a rubber pad, 39 is a second fork groove in the upper pressure plate, 40 is two crossbeams in the upper pressure plate, and 41 is two straight toothed forks in the upper pressure plate. Detailed Implementation

[0038] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments. Example 1

[0039] like Figure 1 As shown, the auxiliary tooling for processing and flipping the magnetic shielding of the lung lobe includes a base frame 2, a lower support plate 3 and an upper pressure plate 4 placed sequentially from bottom to top, with the magnetic shielding of the lung lobe 1 placed on the lower support plate 3.

[0040] like Figure 2 , 3 As shown, the base frame 2 is placed on the ground and includes an integrally assembled column 5 and connecting plate 6. The connecting plate 6 is a perforated flat plate; the perforated structure not only saves materials but also reduces its weight. The front length of the connecting plate 6 is shorter than its rear length, and this front-shorter-rear-long structure matches the lower support plate 3. There are six columns 5, each with its upper end passing through the connecting plate 6, and each column 5 extends upwards from the top of the connecting plate 6. The lower end of each column 5 is equipped with a traveling wheel 7, which facilitates the overall movement of the base frame 2. The upper end of each column 5 is welded or integrally formed with a frustum-shaped support 8. The diameter of the support 8 is larger than the diameter of the column 5, allowing the lower support plate 3 to be placed more stably on the support 8. Three columns 5 are evenly distributed on the front and rear sides of the connecting plate 6 along its length. The six columns 5 provide six-point support for the connecting plate 6, making it easier for the lifting and clamping equipment to fork off the lower support plate 3 from below. The six distributed points provide uniform and stable support for the lung lobe magnetic shield 1 of the semi-circular structure on the lower support plate 3.

[0041] like Figure 4-15 As shown, the lower support plate 3 includes a lower support plate frame 9, a movable support plate 10, and a rear baffle 11. The movable support plate 10 and the rear baffle 11 are movably mounted on the lower support plate frame 9. The lower support plate frame 9 includes a front crossbeam 18, a rear crossbeam 17, a connecting plate 29, and a reinforcing frame 20. The rear crossbeam 17 and the connecting plate 29 are each provided with several weight-reducing holes. The front crossbeam 18 and the rear crossbeam 17 are welded to the two ends of the connecting plate 29 at their midpoints along their length. The reinforcing frames 20 are welded to the left and right sides of the connecting plate 29, respectively. The front ends of the reinforcing frames 20 are welded to the two ends of the front crossbeam 18, and the rear ends of the reinforcing frames 20 are welded to the corner where the rear crossbeam 17 connects to the connecting plate 29. The rear crossbeam 17 has a U-shaped groove structure in its cross section. This U-shaped groove structure is used to install the lifting base plate 12. The rear side baffle 11 is detachably installed on the rear side of the U-shaped groove structure of the rear crossbeam 17 via a guide optical axis. The height of the rear side baffle 11 must be sufficient to block the thickest lung lobe magnetic shield 1. A reinforcing rib 26 with weight-reducing holes is provided on the back of the rear side baffle 11. The rear side baffle 11 has a bent, irregularly shaped cross section. The integrally formed, vertically adjacent inner surface 24 and bottom edge 25 of the rear side baffle form a bend. A gap exists between the bottom edge 25 of the rear side baffle and the upper surface of the upper lifting plate 27 to avoid interference with the bottom fiberglass plate in the lung lobe magnetic shield 1. The inner surface 24 of the rear side baffle is insulated. Weight-reducing holes are provided on both the inner surface 24 of the rear side baffle and the reinforcing rib 26.

[0042] The rear crossbeam 17 has an L-shaped groove 21 at the left and right ends of the U-shaped groove structure along its length, and the front crossbeam 18 has an L-shaped groove 22 at the left and right ends. Six guide optical shafts are evenly distributed and fixedly welded to the rear surface of the U-shaped groove structure along its length. Six guide holes are opened on the rear baffle 11 corresponding to the positions of the guide optical shafts. The guide optical shafts are common molded parts in the field. The guide optical shafts include optical rods 15 and quick steel lock heads 23 sleeved on the optical rods 15. The optical rods 15 pass through the guide holes on the rear baffle 11. Quick steel lock heads 23 are set on the optical rods 15 on both sides of the rear baffle 11. The locking force of a single quick steel lock head 23 is 300 kg. The guide optical shafts enable the detachable installation of the rear baffle 11 and the adjustment of the front and rear positions of the rear baffle 11 to firmly press the lung magnetic shield 1. The guide optical axis, in conjunction with the rear baffle 11, ensures the flatness of the silicon steel sheet end face, and the rear baffle 11 supports the flat surface of the lung magnetic shield 1 during tilting. The lower surfaces of the front crossbeam 18 and the rear crossbeam 17 are machined with protruding structures at both ends, corresponding to the upper ends of the column 5, enabling rapid and accurate docking and positioning of the lower support frame 9 and the base frame 2. A pair of fork guide grooves 16 are symmetrically welded to the lower surfaces of the front crossbeam 18 and the rear crossbeam 17, with the four fork guide grooves 16 corresponding to the forks of the tilting machine.

[0043] The movable pallets 10 are arranged in pairs, left and right, respectively located on the outside of the connecting plate 6. Each pair includes a semi-trapezoidal movable pallet frame. The lower surfaces of both ends of the movable pallet frame are integrally formed with movable pallet frame sliders. The size and shape of the movable pallet frame slider at the rear end match the slide groove 21 on the rear crossbeam 17. The size and shape of the movable pallet frame slider at the front end match the slide groove 22 on the front crossbeam 18. A movable pallet frame limiting rod is provided at the front end of the movable pallet frame slider. The front end of the movable pallet frame limiting rod is connected to the movable pallet frame locking knob. The front sides of the rear crossbeam 17 and the front crossbeam 18 are respectively provided with movable pallet frame limiting slots that match the movable pallet frame limiting rods. The movable pallet frame sliders are inserted into slide groove 21 and slide groove 22 respectively. The movable pallet frame limiting rod passes through the limiting long groove of the movable pallet frame, realizing the horizontal sliding of the movable pallet 10 on the rear crossbeam 17 and the front crossbeam 18. This allows it to adapt to different sizes of lung lobe magnetic shields 1, avoid grounding wire outlet holes at arbitrary positions, and support most of the weight of silicon steel sheets. The upper surface of the movable pallet 10 is insulated, and the insulation layer is also perforated for easy wire threading.

[0044] The arc-shaped limiting components 13 are arranged in pairs, left and right, respectively located on the outer side of a pair of movable support plates 10. Each component includes a triangular arc-shaped limiting plate. An arc-shaped limiting slider is rotatably mounted on the lower part of the middle corner of the arc-shaped limiting plate. The size and shape of the arc-shaped limiting slider match the second groove 22 on the front crossbeam 18. An arc-shaped limiting rod is mounted on the front side of the arc-shaped limiting slider, and the front end of the arc-shaped limiting rod is connected to an arc-shaped limiting locking knob. An arc-shaped limiting groove is formed on the front side of the front crossbeam 18 to match the arc-shaped limiting rod. Arc-shaped limiting wheels are rotatably mounted at both ends of the arc-shaped limiting plate. The arc-shaped limiting slider is inserted into the second groove 22, and the arc-shaped limiting rod passes through the arc-shaped limiting groove, enabling the arc-shaped limiting components 13 to slide horizontally on the front crossbeam 18. The pair of arc-shaped limiting wheels conform to the outer surface of the arc segment of the lung lobe magnetic shield 1.

[0045] The side limiting components 14 are arranged in pairs, left and right, located outside a pair of movable support plates 10. Each component includes a side limiting slider and a side limiting wheel mounted above the slider. The size and shape of the side limiting slider mate with the groove 21 on the rear crossbeam 17. A side limiting rod is mounted on the front of the side limiting slider, and the front end of the rod is connected to a side limiting locking knob. A side limiting groove is formed on the front side of the rear crossbeam 17 to mate with the side limiting rod. The side limiting slider is inserted into the groove 21, and the side limiting rod passes through the groove, enabling the side limiting components 14 to slide horizontally on the rear crossbeam 17. The side limiting wheel conforms to the outer surface of the straight section of the lung lobe magnetic shield 1.

[0046] The curved surface limiting wheel and the side limiting wheel can be made of POM material.

[0047] The lifting base plate 12 includes an upper lifting plate 27, a lower mounting plate 28, several lead screws 29, several wedge blocks 30, a crank handle 32, and a coupling 31. The lifting base plate 12 and the rear baffle 11 are designed as separate units, ensuring that the lifting base plate 12 does not interfere with the removal and installation of the rear baffle 11. The upper lifting plate 27 and the lower mounting plate 28 are rectangular boxes with a snap-fit ​​design. The upper surface of the upper lifting plate 27 is insulated, and the inner surfaces of both the upper lifting plate 27 and the lower mounting plate 28 are smooth for easy disassembly and cleaning, preventing the accumulation of metal powder. The lead screws 29 are connected by the coupling 31. The outer ends of the lead screws 29 at both ends are rotatably mounted on both ends of the lower mounting plate 28 via bearings. One end of the lead screw 29 extends outward and is fixedly connected to the crank handle 32, allowing the lead screw 29 to be rotated by operating the crank handle 32. Several parallel pairs of wedge blocks 30 are evenly distributed and movable within a rectangular box. Each pair of wedge blocks 30 is fixedly connected at both ends to a threaded nut block 33, which is threadedly connected to a lead screw 29. An integrally formed lifting ramp 34 is machined on the lower inner surface of the upper lifting plate 27. The position and shape of the lifting ramp 34 match the wedge blocks 30. The adjacent surfaces of the lifting ramp 34 and the wedge blocks 30 are smoothed to reduce friction. The bottom of the straight section of the lung lobe magnetic shield 1 has a stepped structure. To accommodate different sizes of the stepped structure, an adjustable lifting base plate 12 is designed. By rotating the lead screw 29, the wedge blocks 30 are moved horizontally. The lifting ramp 34, corresponding to the wedge blocks 30, enables the overall lifting of the upper lifting plate 27. The lifting base plate 12 has a built-in leveling function; once leveled, it can be used continuously, greatly improving production efficiency. The design of the lifting base plate 12 is suitable for the stepped structure of all sizes of lung lobe magnetic shields 1.

[0048] like Figure 16 As shown, the upper pressure plate 4 includes an upper steel beam 35, an upper pressure plate fork groove 36, a lower steel beam 37, and rubber pads 38. There are two upper steel beams 35, arranged parallel to each other, with the front upper steel beam 35 shorter than the rear upper steel beam 35. A pair of upper pressure plate fork grooves 36 are fixedly installed between the upper surfaces of the two upper steel beams 35 by bolts (or welding). Several lower steel beams 37 are fixedly installed between the upper surfaces of the two upper steel beams 35 by bolts. Several rubber pads 38 are evenly distributed and bonded (or fixed by bolts) on the lower surface of each lower steel beam 37. The rubber pads 38 can serve as insulating and anti-slip contacts. The number and inclination direction of the lower steel beams 37 are flexibly set according to their contact position with the lung lobe magnetic shield 1. Long mounting grooves are opened on both sides of the upper steel beam 35 along its length to facilitate adjustment of the installation position of the lower steel beams 37. The upper steel beam 35 and the lower steel beam 37 can be made of Z-shaped steel plates. During installation, the opening of the upper steel beam 35 faces downward and the opening of the lower steel beam 37 faces upward. The comb-shaped upper pressure plate 4 is lightweight and suitable for the special shape of the lung lobe magnetic shield 1.

[0049] The surfaces of all components in contact with the lung lobe magnetic shield 1 (such as connecting plate 19, movable support plate 10, etc.) are fixedly covered with phenolic fabric sheets to prevent scratches on the lung lobe magnetic shield 1. When assembling the lung lobe magnetic shield 1, the lower middle surface of the outer shell of the lung lobe magnetic shield 1 is attached to the surface of the phenolic fabric sheet. The phenolic fabric sheet is installed using nylon countersunk screws. After assembly, the nylon countersunk screw heads are recessed 2mm into the plane to avoid damaging the surface of the lung lobe magnetic shield 1. Example 2

[0050] like Figure 17 As shown, Embodiment 2 of this utility model provides a structural design for an upper pressure plate 2 that differs from that of the upper pressure plate 4. The upper pressure plate 2 includes upper pressure plate 2 fork grooves 39, upper pressure plate 2 crossbeams 40, upper pressure plate 2 straight tooth forks 41, and rubber pads 2. A pair of upper pressure plate 2 fork grooves 39 are welded to the upper surface of the upper pressure plate 2 crossbeams 40, and several upper pressure plate 2 straight tooth forks 41 are welded to the front surface of the upper pressure plate 2 crossbeams 40. A phenolic fabric board is bonded (or installed by bolts) to the lower surface of each upper pressure plate 2 straight tooth fork 41. Example 3

[0051] like Figure 18 As shown in Examples 1 and 2, the method of using the lung lobe magnetic shielding processing and flipping auxiliary tooling is as follows:

[0052] Place the base frame 2 on the ground, and use a forklift to place the lower pallet 3 on the base frame 2. Adjust the position of the movable pallet 10 according to the size of the lung lobe magnetic shield 1. Place the lung lobe-shaped cavity shell on the movable pallet 10 and the connecting plate 19. Adjust the position of the arc-shaped limiting component 13 to fit tightly against the outer side of the arc segment of the lung lobe magnetic shield 1. Adjust the position of the side limiting component 14 to fit tightly against the outer side of the straight segment of the lung lobe magnetic shield 1. Adjust the lifting base plate 12 to an appropriate height, and install the lifting base plate 12 in the U-shaped groove structure of the rear crossbeam 17 with bolts (removable). Install and lock the rear side baffle 11 through the guide optical axis, and stack and press silicon steel sheets into the lung lobe-shaped cavity shell. After the silicon steel sheets are placed, attach and install the upper cover plate. Remove the rear side baffle 11 through the guide optical axis, attach and install the side cover plate, and complete the fabrication of the lung lobe magnetic shield 1. Finally, install and lock the rear side baffle 11 again through the guide optical axis to reliably fix the lung lobe magnetic shield 1.

[0053] Using existing forklifts and auxiliary tooling, the lung lobe magnetic shield 1 can be flipped. Details are as follows:

[0054] The forklift's upper forks are equipped with tension / compression sensors. During the pre-flipping preparation phase, the upper forks lift either upper pressure plate 4 or upper pressure plate 2, applying downward pressure to the upper forks, resulting in a negative sensor reading. The forklift moves to base frame 2, and the lower forks lift the lower support plate 3 and the lung magnetic shield 1 on it, aligning the upper and lower forks. The forklift then places either upper pressure plate 4 or upper pressure plate 2 onto the lung magnetic shield 1, applying pressure based on the weight of either plate. When the upper forks are no longer under force, the pressure returns to zero. The continued movement of the upper and lower forks towards each other generates a clamping force (the magnitude of which is set according to the bearing capacity of the lung magnetic shield 1), resulting in a positive pressure sensor reading.

[0055] The forklift controls the rotation of the upper and lower forks. During the upward and horizontal rotation of the lung lobe magnetic shield 1, the pressure applied to the upper fork remains unchanged. If the sensor reading changes rapidly (the threshold can be set), the current state is maintained and the machine is stopped immediately. During the downward rotation, the upper fork becomes the lower fork, and the pressure gradually increases. If there is a sudden change in the rate of pressure change, the current state is maintained and the machine is stopped immediately.

[0056] Embodiment 3 of this utility model is applied to the assembly and assisted flipping of all forms of lobar magnetic shields 1, such as power transformers and converter transformers, enabling the stacking and flipping of lobar magnetic shields 1 with different radii and thicknesses. The limiting technical parameters of the lobar magnetic shield 1 are as follows:

[0057] Maximum dimensions (mm) of the lung lobe magnetic shield 1: 140*1250*2750;

[0058] Maximum weight (t) of the magnetic shielding for the lung lobe: 1.3;

[0059] Minimum dimensions (mm) of the lung lobe magnetic shield 1: 108*760*1970;

[0060] Minimum weight (t) of the lung lobe magnetic shield 1: 0.5.

[0061] In this embodiment of the utility model, all technical features not described in detail are existing technologies or conventional technical means, and will not be repeated here.

[0062] Finally, it should be noted that the above embodiments are merely specific implementations of this utility model, used to illustrate the technical solution of this utility model, and not to limit it. The protection scope of this utility model is not limited thereto. Those skilled in the art should understand that any person skilled in the art can modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this utility model; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be covered within the protection scope of this utility model.

Claims

1. A tooling for processing and flipping magnetic shielding of lung lobes, comprising a base frame, a lower support plate, and an upper pressure plate arranged sequentially from bottom to top, characterized in that, The lower support plate includes a lower support plate frame, a movable support plate, and a rear side baffle. The lower support plate frame includes a front crossbeam, a rear crossbeam, and a second connecting plate. The middle positions of the front and rear crossbeams are welded to both ends of the second connecting plate. Movable support plates are movably installed on both sides of the second connecting plate. The front and rear ends of the movable support plates are slidably connected to the front and rear crossbeams, respectively. Side limiting components are movably installed on the outer rear end of the movable support plate. A pair of side limiting components are slidably connected to the rear crossbeam. Arc-shaped limiting components are movably installed on the outer front end of the movable support plate. A pair of arc-shaped limiting components are slidably connected to the front crossbeam. The rear side baffle is detachably installed on the rear side of the rear crossbeam.

2. The auxiliary tooling for processing and flipping lung lobe magnetic shielding according to claim 1, characterized in that, A lifting base plate is fixedly installed along the length of the rear crossbeam. The lifting base plate includes an upper lifting plate and a lower mounting plate that are movably snapped together to form a rectangular box. Several lead screws are connected by a coupling. The outer ends of the lead screws at both ends are rotatably installed at both ends of the lower mounting plate. The outer end of one of the lead screws extends outward and is fixedly connected to a crank handle. Several parallel pairs of wedge blocks are evenly distributed in the rectangular box. A threaded nut block is fixedly connected between the two ends of a pair of wedge blocks. The threaded nut block is threadedly connected to the lead screw. The lower inner surface of the upper lifting plate is integrally formed with a lifting ramp. The position and shape of the lifting ramp match the wedge blocks.

3. The auxiliary tooling for processing and flipping lung lobe magnetic shielding according to claim 2, characterized in that, Six guide optical shafts are evenly welded to the rear surface of the rear crossbeam along its length. Six guide holes are opened on the rear baffle at the positions corresponding to the guide optical shafts. The rear baffle is detachably installed on the rear crossbeam via the guide optical shafts. A pair of fork guide grooves are symmetrically welded to the lower surfaces of the front and rear crossbeams respectively.

4. The auxiliary tooling for processing and flipping lung lobe magnetic shielding according to claim 2, characterized in that, The arc-shaped limiting component includes a triangular arc-shaped limiting plate, an arc-shaped limiting slider is rotatably installed on the lower part of the middle corner of the arc-shaped limiting plate, an arc-shaped limiting rod is installed on the front side of the arc-shaped limiting slider, and an arc-shaped limiting locking knob is connected to the front end of the arc-shaped limiting rod.

5. The auxiliary tooling for processing and flipping lung lobe magnetic shielding according to claim 2, characterized in that, The side limiting assembly includes a side limiting slider and a side limiting wheel installed above the side limiting slider. A side limiting rod is installed on the front side of the side limiting slider, and the front end of the side limiting rod is connected to a side limiting locking knob.

6. The auxiliary tooling for processing and flipping lung lobe magnetic shielding according to claim 2, characterized in that, The upper pressure plate includes two parallel upper steel beams, with the front upper steel beam being shorter than the rear upper steel beam. A pair of upper pressure plate forks are fixedly installed between the two upper steel beams, and several lower steel beams are fixedly installed between the two upper steel beams. Several rubber pads are evenly distributed and fixedly installed on the lower surface of each lower steel beam.

7. The auxiliary tooling for processing and flipping lung lobe magnetic shielding according to claim 2, characterized in that, Both the connecting plate 2 and the movable support plate are fitted with phenolic fabric sheets using nylon countersunk screws.

8. The auxiliary tooling for processing and flipping lung lobe magnetic shielding according to claim 2, characterized in that, The base frame includes columns and a connecting plate 1 assembled as one piece. The connecting plate 1 is a hollow flat plate with a front length shorter than a rear length. There are six columns, with three columns evenly distributed on the front and rear sides of the connecting plate 1 along its length. The upper end of the column passes through the connecting plate 1 and extends upward from the top of the connecting plate 1. A traveling wheel is installed at the lower end of the column, and a circular truncated bracket is welded or integrally formed at the upper end of the column.

9. A tooling for processing and flipping magnetic shielding of lung lobes, comprising a base frame, a lower support plate, and an upper pressure plate arranged sequentially from bottom to top, characterized in that... The lower support plate includes a lower support plate frame, a movable support plate, and a rear side baffle. The lower support plate frame includes a front crossbeam, a rear crossbeam, and a second connecting plate. The middle positions of the front and rear crossbeams are welded to both ends of the second connecting plate. Movable support plates are movably installed on both sides of the second connecting plate. The front and rear ends of the movable support plates are slidably connected to the front and rear crossbeams, respectively. Side limiting components are movably installed on the outer rear end of the movable support plate. A pair of side limiting components are slidably connected to the rear crossbeam. Arc-shaped limiting components are movably installed on the outer front end of the movable support plate. A pair of arc-shaped limiting components are slidably connected to the front crossbeam. The rear side baffle is detachably installed on the rear side of the rear crossbeam.

10. The auxiliary tooling for processing and flipping lung lobe magnetic shielding according to claim 9, characterized in that, The second upper pressure plate includes a second upper pressure plate crossbeam, a pair of second upper pressure plate fork slots are fixedly installed in the middle of the upper surface of the second upper pressure plate crossbeam, and several second upper pressure plate straight tooth forks are welded to the front surface of the second upper pressure plate crossbeam. A phenolic cloth board is fixedly installed on the lower surface of each second upper pressure plate straight tooth fork.

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