Overturning tool assembly and method for ultra-large disc parts

Abstract

The invention discloses an overturning tool assembly and method for ultra-large disc parts. The turnover tool assembly comprises a turnover transfer tool, a transfer hook and a temporary storage part; the turnover transfer tool comprises a bottom plate, the bottom plate is provided with a fixing assembly used for fixing parts from the middle and / or the edge, the periphery of the bottom plate is provided with a plurality of supporting legs, the supporting legs are located on the hoisting side and the turnover side respectively, the supporting legs on the hoisting side are provided with hanging rings, the supporting legs on the turnover side are provided with arc-shaped edges facing the turnover side, and the arc-shaped edges face the periphery of the bottom plate. And a linear section is arranged in the middle of the arc-shaped edge and is perpendicular to the bottom plate. The problems that parts are difficult to fix and blades are prone to deformation are solved, and damage to the blades by external force is avoided through accurate positioning and stable clamping; the overturning resistance is reduced through the overturning side arc-shaped supporting legs, the gravity center in the overturning process is effectively balanced in cooperation with the reasonable position design of the hoisting side lifting ring, and the potential safety hazard that inertia instant overturning or manual intervention is needed due to gravity center shifting is avoided.

Description

Technical Field

[0001] The invention relates to a turning tool assembly and a method for a super-large disc-type part, belonging to the technical field of part turning. Background Art

[0002] The manufacturing of oversized disc-like parts presents numerous technical challenges in lifting and flipping due to their inherent structure and characteristics. These parts often lack excess stock, making it difficult to design lifting holes and process-aiding structures, posing significant challenges to transfer and flipping operations.

[0003] On the one hand, the impeller blades of the parts are high and easy to deform. During the conventional flipping and transportation process, the external force exerted by the lifting ropes and ground supports can easily cause the blades to deform, affecting the processing accuracy and final quality of the parts. On the other hand, the parts are heavy and have smooth surfaces, making them difficult to fix stably. The traditional lifting and flipping method is not only inefficient, but also has safety hazards caused by unstable fixation.

[0004] In addition, during conventional flipping operations, if the position of the lifting holes is not designed properly, when flipping to a critical angle (such as 90°), it is easy to cause an instantaneous flip due to inertia due to the shift in the center of gravity, which may cause damage to the lifting rope and lifting device, or even cause a safety accident; and if the center of gravity position is not handled properly, manual intervention may be required to assist in the flipping. For oversized parts, manual assistance is limited in effect and poses a great safety risk. Summary of the Invention

[0005] The purpose of the present invention is to provide a flipping tooling assembly and method for super-large disc parts to address the above-mentioned problems such as easy deformation, difficult fixation, and poor safety, which can effectively protect the blades, stably fix the parts, and reasonably control the center of gravity to avoid safety accidents.

[0006] The technical solution adopted in the present invention is as follows: A turning and transferring tool for super-large disc-like parts includes a base plate, on which is provided a fixing assembly for fixing the parts from the middle and / or edge; a plurality of supporting feet are provided on the periphery of the base plate, and the plurality of supporting feet are respectively located on a lifting side and a turning side; the supporting feet on the lifting side are provided with a lifting ring, and the supporting feet on the turning side have an arc-shaped edge toward the turning side.

[0007] Optionally, hoisting holes are provided on the lower middle portion and the upper portion of the support leg on the hoisting side.

[0008] Optionally, the fixing assembly includes a pressure plate for pressing the parts from the middle, and the pressure plate is detachably fixed to the middle of the base plate by a screw.

[0009] Optionally, the screw rod passes through the bottom plate, and first nuts are respectively provided at both ends of the screw rod, wherein one first nut is located above the pressure plate, and the other first nut is located below the bottom plate.

[0010] Optionally, the fixing assembly includes a plurality of pressing blocks for pressing the parts from the edge, the outer bottom of the pressing blocks has a support block, and the pressing blocks are detachably fixed to the base plate by fixing bolts.

[0011] Optionally, the fixing bolt is provided with a second nut after passing through the base plate.

[0012] Optionally, the base plate is further provided with at least three positioning bolts spaced circumferentially.

[0013] Optionally, the base is provided with a plurality of groups of positioning holes, and the positioning screws are provided in the positioning holes; each group of positioning holes includes at least three, and the positioning circle radius of each group of positioning holes is different.

[0014] Optionally, the bottom plate is provided with strip holes opened in the radial direction, and the fixing bolts are arranged through the strip holes.

[0015] Optionally, the base plate is arranged in the middle of the supporting foot, and the supporting foot is upward and higher than the screw rod.

[0016] A method for turning over an oversized disc-like part comprises the following steps: S1. After rough machining, the parts are lifted with a transfer hook and moved to the turning transfer fixture for fixation; S2. After fixing, install the lifting ring on the turning transfer tooling and start turning the parts; During the flipping process, the arc design of the support legs is used to reduce resistance. When the flip reaches 90 degrees, the lifting inertia is offset by the flat area in the middle of the support legs, and the position of the lifting ring or rope is adjusted. S4. After turning over, transfer to a temporary storage location and remove the turning and transfer tooling; S5. After the machine tool is ready, use the transfer hook to lift the parts to the machine tool processing fixture; S6. After processing, use the transfer hook to lift the parts to the temporary storage; S7. Install the flip transfer tooling on the part, install the lifting ring on the flip transfer tooling, and start flipping the part; S8. After turning over, adjust the distance between the forklift forks and directly transfer the flip transfer tooling and parts.

[0017] Optionally, after S2 is fixed, select the middle and lower lifting holes of the lifting side support legs to install the lifting rings; During the flipping process, the curved edge of the flipping support foot conforms to the flipping trajectory, smoothly guiding the rotation of the part through the curved surface to reduce resistance and make the movement trajectory smoother. When flipping to 90 degrees, the straight section in the middle of the curved edge contacts the support surface, forming a stable support with its structural characteristics perpendicular to the base plate, effectively offsetting the lifting inertia. S7. Reinstall the flip transfer tooling on the parts. At this time, the parts and workpieces are in an upside-down state. Select the upper lifting hole of the lifting side support leg to install the lifting ring. During the flipping process, the curved edge of the flipping side support leg continues to reduce resistance. When flipping to 90 degrees, the straight line segment in the middle of the curved edge offsets the inertia. At the same time, because the upper lifting hole is far away from the center, the center of gravity naturally switches to the other side. The flipping can be completed without human intervention, which improves operational safety.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. The present invention provides a turning tooling assembly and method for oversized disc-like parts. The transfer hook solves the problem of cross-equipment transfer of parts without lifting holes. The turning and transfer tooling realizes safe turning and precise fixation. The temporary placement ensures the temporary storage safety during the process connection. They are jointly adapted to the core characteristics of oversized disc-like parts, avoiding damage to parts by external forces throughout the entire process from transfer, turning to temporary storage. They solve the problems of unstable transfer, high turning safety risks, and easy deformation during temporary storage caused by the lack of special components in traditional operations, thereby realizing safe and efficient operation of the parts throughout the entire process.

[0019] 2. The present invention provides a flipping tooling assembly and method for super-large disk-type parts. The fixing assembly solves the problems of difficult fixing of parts and easy deformation of blades, and avoids damage to the blades by external forces through precise positioning and firm clamping; the arc-shaped support feet on the flipping side reduce the flipping resistance, and the reasonable position design of the lifting ring on the lifting side effectively balances the center of gravity during the flipping process, avoiding the safety hazards of instantaneous inertial flipping or manual intervention caused by the offset of the center of gravity; the bottom plate provides a stable foundation for the entire operation, ensuring that heavy parts do not suffer structural instability during transportation and flipping.

[0020] 3. The present invention provides a tooling assembly and method for flipping oversized disc-like parts. The lifting ring position is selected based on the part's installation state, specifically balancing the center of gravity during flipping. When the part is above the tooling, the lifting ring is positioned close to the center to reduce inertial center-of-gravity shifts. When the part is below the tooling, the lifting ring is positioned away from the center to leverage the natural shift of the center of gravity. This avoids the safety hazards of instantaneous inertial flipping or the need for manual intervention in traditional fixed-point designs, and implements innovative control logic for dynamically adapting the center of gravity. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an assembly diagram of parts and flip transfer tooling.

[0022] Figure 2 It is a structural diagram of the flip transfer tooling.

[0023] Figure 3 yes Figure 2 Enlarged view of point A.

[0024] Figure 4 It is a bottom schematic diagram of the flip transfer tooling.

[0025] Figure 5 It is an assembly diagram of parts and transfer hooks.

[0026] Figure 6 It is an assembly diagram of parts and temporarily placed parts.

[0027] Figure 7 This is a schematic diagram of parts being hoisted upright.

[0028] Figure 8 This is a schematic diagram of parts being hoisted upside down.

[0029] Markings in the figure: 1-parts, 2-flip transfer tooling, 21-base plate, 211-positioning hole, 212-bar hole, 22-support foot, 221-arc edge, 222-lifting hole, 23-lifting ring, 24-fixing assembly, 241-pressure plate, 242-screw, 243-first nut, 244-pressure block, 245-support block, 246-fixing bolt, 247-second nut, 25-positioning bolt, 3-transfer hook, 4-temporary placement part. DETAILED DESCRIPTION

[0030] The present invention will be described in detail below with reference to the accompanying drawings.

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0032] A turning tool assembly for super large disc parts, such as Figure 1-8 As shown, it includes a turning transfer tool 2, a transfer hook 3 and a temporary storage part 4; The flipping transfer tooling 2 includes a base plate 21, on which a fixing assembly 24 is provided for fixing the part 1 from the middle and / or edge. A plurality of supporting feet 22 are provided on the periphery of the base plate 21, and the plurality of supporting feet 22 are respectively located on the lifting side and the flipping side. A lifting ring 23 is provided on the supporting foot 22 on the lifting side, and the supporting foot 22 on the flipping side has an arc-shaped edge 221 facing the flipping side, and the middle part of the arc-shaped edge 221 has a straight line segment, which is perpendicular to the base plate 21.

[0033] The flip transfer tooling 2 serves as the core bearing structure, and is responsible for positioning, fixing, and flipping the part 1. The transfer hook 3 serves as a connection tool, specifically adapted to the characteristics of the super-large disc-type part 1 without a lifting hole 222 and with a smooth surface. In the process of transferring the part 1 from the machine tool to the flip transfer tooling 2, or from the flip transfer tooling 2 to the temporary storage part 4, the part 1 is stably lifted without contact with the blade by adapting to the edge of the part 1 or the tooling structure, avoiding external force damage to the blade caused by direct hooking. At the same time, it ensures the balance of the part 1 during the transfer process and prevents the risk of slipping due to the smooth surface. The temporary storage part 4 serves as an intermediate transition carrier, providing temporary storage support after the part 1 is flipped or during the process conversion. It only supports the non-deformable parts of the part 1 (such as the end of the page) and does not contact the top of the blade, avoiding deformation of the blade caused by long-term placement or improper support. At the same time, it provides a stable pick-and-place basis for subsequent transfers, reducing the risk of force on the part 1 in a non-processing state.

[0034] In the flipping and transferring tooling 2, the base plate 21 serves as the basic load-bearing structure of the tooling, bearing the weight of the part 1 and other components, and providing a stable installation platform for the fixing component 24, support leg 22, etc., ensuring the rigidity and stability of the overall structure of the tooling during the hoisting, flipping and transfer process, and avoiding the shaking or displacement of the part 1 due to an unstable foundation. The fixing component 24 is the core structure for achieving precise positioning and firm fixation of the part 1. It firmly fixes the part 1 on the base plate 21, effectively solving the fixation problem caused by the smooth surface and lack of hoisting holes 222 of the super-large disc-like parts 1, and at the same time avoids the deformation of the blades caused by the displacement of the part 1 during operation. The support leg 22 is divided into a hoisting side and a flipping side, with clear division of labor. A lifting ring 23 is provided on the support leg 22 on the hoisting side for connecting the lifting rope and the lifting device. By optimizing the relative position of the lifting point and the center of gravity, the risk of instantaneous inertial flipping caused by the shift of the center of gravity during flipping is avoided, ensuring safe operation. The support foot 22 on the flipping side has an arc-shaped structure designed towards the flipping side, which can reduce the friction resistance with the support surface during the flipping process, making the flipping trajectory of the part 1 smoother and improving the stability of the flipping operation. The straight section in the middle of the arc-shaped edge 221 is perpendicular to the base plate 21, providing a stable support surface when the part 1 is flipped to 90 degrees. When the flip is carried out to 90 degrees, the straight section perpendicular to the base plate 21 will form a rigid contact with the support surface, using its vertical characteristics to transmit a balanced support force, effectively offsetting the inertia during the lifting process, and preventing the part 1 from flipping instantly due to inertia. At the same time, it reserves time for the operator to adjust the position of the lifting ring 23 or the lifting rope to ensure that the flipping trajectory is smooth and controllable. The arc-shaped part ensures a smooth motion trajectory during flipping, while the middle straight section plays a stabilizing support role at the critical 90-degree position, protecting the blades from deformation caused by external impact. This solution is implemented through the fixing and lifting structure of the tooling, without relying on the lifting holes 222 of the part 1 itself. The blades are protected from deformation by external forces through the fixing components 24 and the support method. With the help of the optimized position of the lifting ring 23 and the design of the arc-shaped support foot 22, the problems of difficult fixing and high flipping safety risks caused by the heavy weight of the part 1 and the difficulty in controlling the center of gravity are resolved, and the safe and efficient flipping and transportation of the super-large disc-type parts 1 are achieved.

[0035] As another specific embodiment, the middle and lower parts and upper parts of the support leg 22 on the lifting side are both provided with lifting holes 222. When the part 1 is installed on the tooling, the middle and lower lifting holes 222 can be selected, which are closer to the center of the tooling, and can reduce the shift of the center of gravity toward the part 1 during flipping, avoid instantaneous flipping caused by the inertia of the center of gravity shift when flipping to 90°, and reduce the risk of damage to the lifting rope or lifting device; when the part 1 and the workpiece are turned upside down, the upper lifting holes 222 can be selected, which are relatively far away from the center. By utilizing the center of gravity transfer characteristics, the center of gravity will naturally switch to the other side when flipping to 90°, and the flipping can be completed without manual intervention, thereby improving operational safety. Preferably, the middle and lower parts of the support leg 22 on the flipping side are also provided with lifting holes 222. The lifting hole 222 in the lower middle part of the flip side support foot 22 is used in conjunction with the lifting hole 222 of the lifting side support foot 22 to meet the transfer requirements of super-large disc parts 1. There is no need to rely on the lifting hole 222 of the part 1 itself. Stable transfer can be achieved only through the cooperation of the lifting holes 222 on both sides of the tooling.

[0036] As another specific embodiment, the fixing assembly 24 includes a pressure plate 241 for pressing the part 1 from the middle. The pressure plate 241 is detachably fixed to the middle of the base plate 21 by a screw 242. The screw 242 passes through the base plate 21. A first nut 243 is provided at each end of the screw 242, one of the first nuts 243 being located above the pressure plate 241 and the other being located below the base plate 21. The screw 242 enables a detachable connection between the pressure plate 241 and the middle of the base plate 21. By adjusting the tightness of the screw 242, it can accommodate parts 1 of different sizes or thicknesses, thereby improving the versatility of the tooling. A secure clamping is achieved by fixing the pressure plate 241 and screw 242 provided by the tooling without relying on the part 1's own lifting holes 222 or process-assisted structures. The middle pressure prevents deformation of the blades due to uneven force on the part 1. The detachable design improves operational flexibility. Combined with the edge fixing method, for super-large disc-type parts 1, the middle pressure can balance the overall force of the part 1, avoid the warping or uneven force of the middle part of the part 1 caused by relying solely on edge fixation, and thus reduce the indirect damage to the blade caused by the deformation of the part 1. The first nut 243 located above the pressure plate 241 can directly adjust the degree of pressure of the pressure plate 241 on the part 1. When it is necessary to install or remove the part 1 from the top of the tooling, just loosen this nut, remove the pressure plate 241, and directly operate the part 1; and the first nut 243 located below the bottom plate 21 is used to lock the relative position of the screw 242 and the bottom plate 21. After turning the workpiece over, it is necessary to install or remove it from the original bottom of the tooling. After loosening this nut, the screw 242 and the pressure plate 241 can be adjusted or removed as a whole, while ensuring the stability of the part 1, maximizing the simplification of the two-sided operation process. This solution is a preferred method. When two-sided operation is not required, the screw 242 can be directly fixed to the base plate 21, and a thread is set on the pressure plate 241, which is fixed to the screw 242 through the thread; or only the first nut 243 is set above the pressure plate 241.

[0037] In another specific embodiment, the fixing assembly 24 includes multiple pressing blocks 244 for compressing the part 1 from its edges. Each of these pressing blocks 244 has a support block 245 at its outer bottom. These pressing blocks 244 are removably secured to the base plate 21 via fixing bolts 246. These fixing bolts 246 extend through the base plate 21 and are then attached to a second nut 247. These multiple pressing blocks 244 apply pressure from the edges of the part 1, forming a coordinated clamping pattern with the central pressure plate 241. This further enhances the stability of the part 1 and prevents the edges of oversized disc-like parts 1 from warping or shifting during transportation due to their heavy weight and smooth surface. The support blocks 245 at the outer bottom of the pressing blocks 244 enhance their structural stability during compression, preventing deformation or tilting due to excessive force, and ensuring uniform and consistent pressure on the edges of the part 1. Fixing bolts 246 provide a removable connection between the pressing blocks 244 and the base plate 21. Installation and removal of the pressing blocks 244 can be completed by simply loosening or tightening the nuts. By clamping the bottom plate 21 from the upper and lower sides with the fixing bolts 246 and the second nut 247 respectively, the pressure block 244 can be effectively prevented from loosening during the vibration process of the part 1 being turned over and transported, ensuring that the clamping force on the edge of the part 1 is continuous and stable, and avoiding the displacement of the part 1 due to the loosening of the pressure block 244. When operating from the top, the pressure block 244 can be removed by loosening the fixing bolts 246; when operating from the bottom, the state of the pressure block 244 can be adjusted in conjunction with the fixing bolts 246 by simply loosening the second nut 247. There is no need to remove other components, and the operation path is not blocked. As a preferred solution, when two-sided operation is not required, threaded holes can be set on the bottom plate 21 and bolts can be used to directly connect to the threaded holes.

[0038] As another specific embodiment, the base plate 21 is provided with a radially extending strip-shaped hole 212, through which the fixing bolt 246 is installed. When the outer diameter or edge clamping position of an oversized disc-like part 1 varies, the fixing bolt 246 can move radially within the strip-shaped hole 212, thereby adjusting the position of the pressing block 244. This ensures that the pressing block 244 can precisely fit the edges of parts 1 of different specifications and exert effective clamping force. This eliminates the need to design separate fixing points for each size of part 1, thereby improving the adaptability of the tooling to parts 1 of various specifications.

[0039] As another specific embodiment, the bottom plate 21 is further provided with at least three positioning bolts 25 spaced circumferentially; the base is provided with a plurality of groups of positioning holes 211, and the positioning screws are arranged in the positioning holes 211; each group of positioning holes 211 includes at least three, and the positioning circle radius of each group of positioning holes 211 is different. Through multi-point support around the inner hole, the center position of the part 1 in the tooling is precisely defined to prevent radial displacement of the part 1 during transfer and flipping. At the same time, at least three positioning bolts 25 comply with the stability principle of three-point positioning, which can ensure that the part 1 is precisely centered at the corresponding positioning circle radius. The positioning circle radius of each group of positioning holes 211 is different. According to the difference in the inner hole size of the super-large disk-type part 1, a matching group of positioning holes 211 can be selected and positioning screws can be installed to adapt to parts 1 with a variety of inner hole specifications, without the need to design positioning structures separately for parts 1 of different sizes.

[0040] As another specific embodiment, the base plate 21 is provided in the middle of the support leg 22, and the support leg 22 is upwardly higher than the screw 242. The base plate 21 is provided in the middle of the support leg 22, so that the support leg 22 forms a symmetrical support structure from both sides of the base plate 21, ensuring that the base plate 21 and the part 1 fixed thereon are evenly stressed during the flipping and transportation process, avoiding tilting of the base plate 21 or shifting of the center of gravity of the part 1 due to support deflection, adapting to the heavy weight of the oversized disc-type part 1, and ensuring the stability of the overall structure. During the placement or flipping of the part 1, the support leg 22 will contact the support surface before the screw 242 and the pressure plate 241, avoiding damage caused by direct collision between the fixing assembly 24 and the support surface, and preventing the support surface from squeezing the screw 242 or the pressure plate 241 and indirectly affecting the fixed state of the part 1.

[0041] As another specific embodiment, the temporary placement piece 4 is a wooden tooling, and the wooden tooling is annularly supported on the periphery of the component 1; or, the temporary placement piece 4 is a sandbag.

[0042] The wooden tooling adopts a design of annular support on the periphery of part 1, achieving stable temporary storage by uniformly applying force on the periphery, while focusing on blade protection: the annular structure adapts to the peripheral shape of the super-large disk-like part 1, and can evenly support the weight of part 1 from multiple points, avoiding deformation of part 1 caused by local force concentration; the wooden material is soft in texture, which can reduce hard friction with the surface of part 1 and prevent scratches; and the annular support only acts on the non-blade area of ​​the periphery of part 1 and does not contact the top of the blade, minimizing the impact of external forces on the blade and ensuring that the blade does not deform during temporary storage. The sandbag is soft and shapeable, and can fit the support according to the peripheral shape of part 1, avoiding excessive local pressure by dispersing the force; it also does not contact the top of the blade, and only provides support for non-easily deformable parts, reducing the risk of deformation of part 1 during temporary storage; at the same time, the weight of the sandbag can be flexibly adjusted to adapt to parts 1 of different sizes or weights, and the material is easy to obtain, which can replace wooden tooling to achieve low-cost, low-damage temporary storage functions.

[0043] A method for turning over an oversized disc-like component 1 comprises the following steps: S1. After rough machining, part 1 is lifted by transfer hook 3 and moved to the turning transfer tool 2 for fixation; S2. After fixing, install the lifting ring 23 on the turning transfer tool 2 and start turning the part 1; S3. During the flipping process, the arc design of the support legs 22 is used to reduce resistance. When the flip reaches 90 degrees, the lifting inertia is offset by the middle plane area of ​​the support legs 22, and the position of the lifting ring 23 or the lifting rope is adjusted; S4, turn over and transfer to temporary storage 4, remove the turning transfer tool 2; S5. After the machine tool is ready, the transfer hook 3 is used to lift the part 1 to the machine tool processing fixture; S6. After the processing is completed, the part 1 is lifted to the temporary storage part 4 using the transfer hook 3; S7, install the turning transfer tool 2 on the part 1, install the lifting ring 23 on the turning transfer tool 2, and start turning the part 1; S8. After turning over, adjust the distance between the forklift forks and directly transfer the flip transfer tooling 2 and part 1.

[0044] The processing tooling is directly connected to the processing area of ​​the part 1, and there may be machine tool worktables, fixtures, guide rails and other structures around it, which results in the operating space required for the installation of the pressure plate 241 being severely squeezed. Therefore, the compact structure of the processing tooling will block the pick-up and placement path of the flip transfer tooling 2, and cannot accommodate tools, so the conditions for installing and disassembling the flip transfer tooling 2 are not met. The temporary placement part 4 uses peripheral support or flexible lifting to stably place the part 1 in an open environment. Its structure has no unnecessary obstructions, and sufficient upper and lower operating space is reserved for the installation of the pressure plate 241. The transfer hook 3 can safely transfer the part 1 from the processing tooling to the temporary placement part 4 without contacting the blades, breaking through the space limitations of the processing tooling.

[0045] This solution avoids the temporary placement chaos of Part 1 caused by process interruptions in traditional operations, ensuring that Part 1 is always in a controllable support state throughout its life cycle. The arc design of the support foot 22 reduces the flipping resistance, and the flat area is used to offset the lifting inertia at 90 degrees. In conjunction with the adjustment of the lifting ring 23 / rope position, the flipping operation with heavy weight and difficult-to-control inertia is transformed into a smooth process with controllable trajectory, avoiding the risk of Part 1 shaking, rope breaking, or instant flipping due to inertia in traditional flipping. The transfer link relies on the transfer hook 3, avoiding the risk of slipping due to the smooth surface of Part 1, and does not contact the blades, eliminating the hidden danger of blade deformation due to external force during the lifting process, and reducing the overall safety risks of personnel and equipment.

[0046] As another specific embodiment, after S2 is completed, the lifting hole 222 in the middle and lower part of the lifting side support leg 22 is selected to install the lifting ring 23; During the flipping process, the curved edge 221 of the flip-side support leg 22 conforms to the flipping trajectory, and the curved surface smoothly guides the rotation of the part 1 to reduce resistance and make the motion trajectory smoother. When flipped to 90 degrees, the straight section in the middle of the curved edge 221 contacts the support surface, forming a stable support with its structural characteristics perpendicular to the bottom plate 21, effectively offsetting the lifting inertia. S7. Reinstall the flip transfer tooling 2 on the part 1. At this time, the part 1 and the workpiece are in an upside-down state; select the upper lifting hole 222 of the lifting side support foot 22 to install the lifting ring 23; during the flipping process, the arc-shaped edge 221 of the flipping side support foot 22 continues to reduce the resistance. When flipped to 90 degrees, the straight line segment in the middle of the arc-shaped edge 221 offsets the inertia. At the same time, because the upper lifting hole 222 is far away from the center, the center of gravity naturally switches to the other side. The flipping can be completed without manual intervention, thereby improving the safety of operation.

[0047] Selecting lifting holes 222 at different heights according to the installation status of part 1 breaks through the limitation of fixed lifting points adapting to a single state in traditional flipping methods. When the workpiece is flipped from upright to upside down, if the lifting hole 222 is far away from the center, the center of gravity is all in the direction of part 1 during flipping. When part 1 is about to reach 90°, it will flip instantly due to the inertia of the center of gravity shift. The excessive weight of part 1 may cause damage to the lifting rope or lifting device, resulting in a safety accident. The middle and lower lifting holes 222 are adapted to the center of gravity distribution of part 1 when it is installed upright. The inertia of the center of gravity shift in the early stage of flipping is reduced by positioning the lifting point close to the center. The upper lifting hole 222 is adapted to the center of gravity transfer when part 1 is inverted. By utilizing the characteristics of the lifting point far away from the center, the center of gravity naturally switches to the other side when flipping to 90°, and a smooth flip can be completed without manual intervention. It solves the risk of flipping jams or instant flipping caused by the heavy weight and difficult control of the center of gravity of super-large parts 1, and realizes innovative control in which the lifting point changes with the state and the center of gravity remains stable with flipping. In addition, the arc-shaped edge 221 of the flip-side support foot 22 is aligned with the flip trajectory. Through the smooth transition characteristics of the arc surface, the sliding friction of the rigid contact in the traditional flip is converted into the rolling friction guided by the arc, which significantly reduces the flip resistance, avoids the shaking of the part 1 due to uneven resistance, and eliminates the collision or deformation of the blades due to sudden changes in resistance. When flipping to 90°, the straight line segment in the middle of the arc-shaped edge 221 is in rigid contact with the support surface, and its vertical structural characteristics are used to form a fulcrum to accurately offset the lifting inertia. In traditional methods, 90° is often the most dangerous node for flipping. However, this design converts the inertial force into a controllable support reaction force through the rigid support of the straight line segment and the support surface, avoiding the tightening of the lifting rope or the bouncing of the part 1 due to inertia, while reserving adjustment time for the operator, solving the industry pain point of the difficult-to-eliminate inertia of 90° flipping.

[0048] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. The present invention extends to any new features or any new combinations disclosed in this specification. Moreover, any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the foregoing exemplary embodiments.

[0049] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "circumferential", "radial", "top", "bottom", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings when the parts are placed upright. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting the embodiments of the present invention.

Claims

1. A turning tool assembly for super-large disc parts, characterized by: It comprises a turning transfer tool (2), a transfer hook (3) and a temporary placement piece (4); The invention discloses a turnover transfer tool (2), comprising a base plate (21), wherein a fixing assembly (24) for fixing a part (1) from the middle and / or the edge is provided on the base plate (21), a plurality of supporting legs (22) are provided on the outer periphery of the base plate (21), and the plurality of supporting legs (22) are respectively located on a hoisting side and a turnover side, a lifting ring (23) is provided on the supporting leg (22) on the hoisting side, and the supporting leg (22) on the turnover side has an arcuate edge (221) facing the turnover side, and a straight line segment is provided in the middle of the arcuate edge (221), and the straight line segment is perpendicular to the base plate (21).

2. The turning tool assembly according to claim 1, wherein: The lower middle portion and the upper portion of the support leg (22) on the lifting side are both provided with lifting holes (222).

3. The turning tool assembly according to claim 1, wherein: The fixing assembly (24) includes a pressure plate (241) for pressing the part (1) from the middle, and the pressure plate (241) is detachably fixed to the middle of the base plate (21) via a screw (242); the screw (242) passes through the base plate (21), and first nuts (243) are respectively provided at both ends of the screw (242), one of the first nuts (243) is located above the pressure plate (241), and the other first nut (243) is located below the base plate (21).

4. The turning tool assembly according to claim 1, wherein: The fixing assembly (24) includes a plurality of pressing blocks (244) for pressing the part (1) from the edge, and the outer bottom of the pressing block (244) has a support block (245). The pressing block (244) is detachably fixed to the base plate (21) by a fixing bolt (246); the fixing bolt (246) is provided with a second nut (247) after passing through the base plate (21).

5. The turning tool assembly according to claim 4, characterized in that: The bottom plate (21) is provided with a strip-shaped hole (212) opened in the radial direction, and the fixing bolt (246) is arranged through the strip-shaped hole (212).

6. The turning tool assembly according to claim 1, wherein: The bottom plate (21) is also provided with at least three positioning bolts (25) spaced apart along the circumferential direction; the base is provided with a plurality of groups of positioning holes (211), and the positioning screws are arranged in the positioning holes (211); each group of positioning holes (211) includes at least three, and the positioning circle radius of each group of positioning holes (211) is different.

7. The turning tool assembly according to claim 1, wherein: The bottom plate is arranged in the middle of the supporting legs, and the supporting legs are upwardly higher than the screw rods.

8. The turning tool assembly according to claim 1, wherein: The temporary placement piece (4) is a wooden tooling, and the wooden tooling is annularly supported on the periphery of the part (1); or, the temporary placement piece (4) is a sandbag.

9. A method for turning over an oversized disk-like part, characterized in that: The following steps are involved: S1. After rough machining, the part (1) is lifted by a transfer hook (3) and moved to the turning transfer tool (2) for fixation; S2. After fixing, install the lifting ring (23) on the turning transfer tool (2) and start turning the part (1); S3, during the turning process, the arc design of the support leg (22) is used to reduce resistance. When the support leg (22) is turned to 90 degrees, the lifting inertia is offset by the middle plane area of ​​the support leg (22), and the position of the lifting ring (23) or the lifting rope is adjusted; S4, after turning over, transfer to the temporary storage unit (4), and remove the turning transfer tooling (2); S5. After the machine tool is ready, the part (1) is lifted to the machine tool processing fixture using a transfer hook (3); S6. After the processing is completed, the part (1) is lifted to the temporary storage part (4) using the transfer hook (3); S7, installing the turning transfer tool (2) on the part (1), installing the lifting ring (23) on the turning transfer tool (2), and starting to turn the part (1); S8. After turning over, adjust the distance between the forklift forks and directly transfer the turning transfer tooling (2) and parts (1).

10. The turning tool assembly according to claim 9, wherein: S2. After the fixing is completed, select the middle and lower lifting hole (222) of the lifting side support foot (22) to install the lifting ring (23); S3. During the flipping process, the arcuate edge (221) of the flipping side support leg (22) fits the flipping trajectory, and the arcuate surface smoothly guides the rotation of the part (1) to reduce resistance and make the motion trajectory smoother; when flipping to 90 degrees, the straight line segment in the middle of the arcuate edge (221) contacts the support surface, and forms a stable support with its structural characteristics perpendicular to the bottom plate (21), effectively offsetting the lifting inertia; S7. Reinstall the turning transfer tool (2) on the part (1). At this time, the part (1) and the workpiece are in an inverted state; select the upper hoisting hole (222) of the hoisting side support leg (22) to install the lifting ring (23); during the turning process, the arc-shaped edge (221) of the turning side support leg (22) continues to reduce resistance. When turning to 90 degrees, the straight line segment in the middle of the arc-shaped edge (221) offsets the inertia. At the same time, because the upper hoisting hole (222) is far away from the center, the center of gravity naturally switches to the other side. The turning can be completed without manual intervention, thereby improving the safety of operation.

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