A large and medium-sized steel alloy casting straightening mechanism

Abstract

This invention relates to the field of orthopedic device technology, and in particular to an orthopedic mechanism for large and medium-sized steel alloy castings. It includes two support frames, with an electric slide rail fixed between them. Below the electric slide rail is an orthopedic plate for orthopedic treatment of the steel alloy casting. Below the orthopedic plate is a heater for preheating the steel alloy casting before orthopedic treatment. The heater is also protected by a heat-insulating shell. Below the orthopedic plate are two symmetrically arranged casting fixing mechanisms for clamping the steel alloy casting. This invention, through the coordination of the electric slide rail, fixing mechanism, power mechanism, lifting mechanism, positioning frame, fixing rod, transmission roller, and stepper motor, adjusts the heated alloy steel casting to face the orthopedic plate, effectively avoiding the risk of positioning deviation caused by manual operation. It also significantly reduces the workload of operators and avoids insufficient orthopedic accuracy due to positioning deviation during manual operation.

Description

Technical Field

[0001] This invention relates to the field of orthopedic devices, and in particular to a large and medium-sized orthopedic mechanism made of steel alloy castings. Background Technology

[0002] Alloy cast steel parts for aircraft refer to metal components made by selectively adding one or more alloying elements such as chromium, nickel, molybdenum, and vanadium to a carbon steel matrix to optimize the material's core properties such as high strength, fatigue resistance, high temperature resistance, impact resistance, and deformation resistance. These components are designed to withstand the harsh operating conditions of aircraft, including high altitude, high pressure, alternating loads, and frequent takeoff and landing impacts. Molten alloy steel is poured into a mold cavity and cooled to solidify, resulting in a metallic component. Because large and medium-sized alloy cast steel parts for aircraft must meet requirements for load-bearing capacity, weight reduction, and complex assembly, their structural design is complex, with significant differences in wall thickness in different parts. For example, in aircraft... The wall thickness difference between the thick-walled load-bearing section and the thin-walled transition section of the undercarriage support, and between the reinforced area and connecting lugs of the engine support, can reach tens of millimeters. During the casting cooling stage, due to the difference in wall thickness, the heat dissipation rate of the thick-walled area is slow and the cooling contraction is delayed, while the heat dissipation rate of the thin-walled area is fast and the cooling contraction is rapid. This difference in cooling contraction rate will cause uneven internal stress inside the casting. This internal stress cannot be completely released through natural cooling, which in turn causes the casting to bend, twist, warp and other shape distortions. Therefore, large and medium-sized steel alloy casting straightening mechanisms are needed for straightening.

[0003] Existing straightening mechanisms for alloy cast steel parts can heat the alloy cast steel parts to be straightened to the target temperature and continuously heat the straightening area and its adjacent areas. However, when dealing with thick-walled alloy cast steel parts, due to the large wall thickness and low heat conduction efficiency, it is necessary to heat both sides of the casting. This requires long-term continuous heating or repeated heating. During this process, in order to ensure that the straightening area and surrounding areas are heated evenly to achieve the ideal straightening effect, the operator needs to adjust the placement and posture of the alloy cast steel parts multiple times. This not only increases the complexity of the operation and prolongs the overall straightening cycle, but also easily causes the positioning deviation of the casting due to repeated adjustments, thus affecting the final straightening accuracy. Therefore, a straightening mechanism for large and medium-sized steel alloy castings is proposed. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, the present invention provides a straightening mechanism for large and medium-sized steel alloy castings.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A straightening mechanism for large and medium-sized steel alloy castings includes two support frames, an electric slide rail fixed between the two support frames, a straightening plate for straightening the steel alloy castings is arranged below the electric slide rail, a heater is arranged below the straightening plate for heating the steel alloy castings before straightening, and a heat-insulating shell is arranged outside the heater to protect it; two casting fixing mechanisms for clamping the steel alloy castings are also symmetrically arranged below the straightening plate. The casting fixing mechanism includes two positioning frames disposed between the heat insulation shell and the straightening plate. Two transmission rollers supporting the two positioning frames are disposed below each positioning frame. Two fixing blocks for clamping the steel alloy casting are disposed inside each positioning frame. A power mechanism is also provided between the electric slide rail and the orthotic plate to fix the casting fixing mechanism, and the power mechanism can also drive the orthotic plate to move downward. The interior of the heat insulation shell is also provided with a lifting mechanism for raising and lowering the heater. The lifting mechanism includes two cover plates located on the top of the heat insulation shell. The two cover plates are hinged to the top of the heat insulation shell and are located directly above the heater.

[0006] As a preferred embodiment of the present invention, each of the two positioning frames is fixed with a mounting ring on the side that is far apart from each other, and the mounting ring is rotatably connected with a bidirectional threaded rod, and a fixing rod is also fixed between the two positioning frames. A mounting block is also fixed on the side of the fixing block away from the orthopedic plate. The two ends of the bidirectional threaded rod are also provided with symmetrical threads, and the middle of the mounting block is provided with a first threaded hole that matches the bidirectional threaded rod. The mounting block has two mounting blocks passing through it at both ends, and the two ends of the bidirectional threaded rod are rotatably connected to the inner wall of the mounting ring. A handle for easy gripping is also fixed in the middle of the bidirectional threaded rod. A clamping groove for fixing the steel alloy casting is also provided on the opposite side of the two fixing blocks. When the steel alloy casting needs to be clamped, the handle is rotated, which drives the bidirectional threaded rod to rotate. The bidirectional threaded rod cooperates with the mounting block to increase or decrease the distance between the two fixing blocks, thereby clamping the steel alloy casting through the two fixing blocks.

[0007] As a preferred embodiment of the present invention, the power mechanism includes a connecting plate fixed to the bottom of the electric slide rail, two extension plates fixed to both sides of the connecting plate, and two connecting frames fixed to the bottom of the two extension plates. The bottom of the two connecting frames is provided with an extension hook, and the outer wall of the positioning frame is provided with an annular groove, in which the extension hook is inserted. The extension hooks are L-shaped, with the bends of the two extension hooks facing the annular groove of the positioning frame. The connecting plate and the two expansion plates are spliced ​​together to form a cross shape. When the slider of the electric slide rail moves laterally back and forth, the slider of the electric slide rail drives the connecting plate to move laterally back and forth, the connecting plate drives the expansion plate to move laterally back and forth, the expansion plate drives the connecting frame to move laterally back and forth, the connecting frame drives the positioning frame to move laterally back and forth, and the positioning frame drives the steel alloy casting that needs to be shaped to move laterally back and forth through the fixing block, moving the steel alloy casting that needs to be shaped to the top of the heater.

[0008] As a preferred embodiment of the present invention, an electro-hydraulic rod is also fixed to the bottom of the connecting plate, and a threaded sleeve is movably connected to the telescopic end of the electro-hydraulic rod, with the bottom of the threaded sleeve fixed to the top of the orthotic plate. The telescopic end of the electric hydraulic rod is provided with a threaded part, and a second threaded hole adapted to the expansion plate is opened in the middle of the threaded sleeve. The bottom of the threaded sleeve is fixed to the top of the straightening plate. The threaded sleeve is screwed into the lower half of the threaded part. When the straightening plate is rotated, the straightening plate drives the threaded sleeve to rotate. The second threaded hole of the threaded sleeve mates with the threaded part of the electro-hydraulic rod, and the straightening plate is installed at the bottom of the telescopic end of the electro-hydraulic rod.

[0009] As a preferred embodiment of the present invention, two first pulleys are symmetrically fixed at the bottom of the connecting plate, two second pulleys are provided at the top of the heat insulation shell, and a connecting rope is provided between the first pulleys and the second pulleys; One end of the connecting rope passes over the second pulley and the first pulley and is fixed to the top of the orthopedic plate, while the other end of the connecting rope away from the orthopedic plate is fixed to the top of the cover plate. Both ends of the connecting rope are fixed with connecting hooks, and the top of the orthotic plate and the bottom of the connecting plate are fixed with collars. The connecting hooks are connected to the collars. When the telescopic end of the first pulley drives the orthotic plate to move downward, the orthotic plate drives the collar to move downward. The collar moves downward through the connecting hooks, causing the connecting rope to drive the cover plate to flip upward.

[0010] As a preferred technical solution of the present invention, the lifting mechanism further includes a carrier plate installed inside the heat insulation shell and a lifting frame for storing the heater inside the heat insulation shell. Insert plates are fixed on both sides of the lifting frame, and a spring is provided inside the carrier plate to push the lifting frame to move upward. The top of the lifting frame is also fixed with several support sleeves to support the heater, and the top of the support sleeves is fixed to the bottom of the insert plate. The spring is located on the side of the insert plate away from the lifting frame. The side of the carrier plate close to the lifting frame has a limiting groove that matches the insert plate. The side of the insert plate away from the lifting frame is inserted into the limiting groove, and the spring is installed in the limiting groove.

[0011] As a preferred technical solution of the present invention, a telescopic column is also inserted inside the carrier plate, and a limit block is fixed at the bottom of the outer wall of the telescopic column; The bottom of the telescopic column contacts the top of the insert plate, and the end of the limiting block away from the telescopic column extends to the outside of the limiting groove. The telescopic column passes through the limiting groove and contacts the bottom of the cover plate. When the cover plate flips upward, it separates from the heat insulation shell. After the telescopic column loses pressure, the spring releases its elasticity. The spring pushes the insert plate and telescopic column upward. The insert plate drives the lifting frame upward. The lifting frame drives the heater upward through the support sleeve, so that the heater moves to the outside of the heat insulation shell. The heater heats the steel alloy casting that needs to be shaped.

[0012] As a preferred embodiment of the present invention, two counterweight plates are also fixed to the top of the two cover plates, and the two counterweight plates are arranged on the opposite side of the two cover plates. The inner wall of the heat insulation shell is also fixed with two buttons, and the top of the heat insulation shell is also fixed with several stepper motors. The output shaft of the stepper motor is fixed to the side of the transmission roller near the cover plate, and the buttons are electrically connected to the stepper motors. The heat insulation shell is also equipped with a controller. A button is connected to the controller via a wire, and a transmission roller is connected to the controller via a wire. The controller can control the number of rotations of the transmission roller. When the insert plate moves upward, it contacts the button, which drives the output shaft of the stepper motor to rotate. The stepper motor drives the transmission roller to rotate, which in turn drives the positioning frame to rotate around its axis. The positioning frame then drives the fixing block to rotate around its axis, and the fixing block drives the steel alloy casting that needs to be straightened to rotate, causing the heated side to flip over to the underside of the straightening plate. The straightening plate then straightens the steel alloy casting.

[0013] Compared with the prior art, the beneficial effects that this invention can achieve are: This invention uses the combination of electric slide rails, fixing mechanisms, power mechanisms, lifting mechanisms, positioning frames, fixing rods, transmission rollers and stepper motors to adjust the heated alloy cast steel parts to face the orthopedic plate, effectively avoiding the risk of positioning deviation caused by manual operation, while greatly reducing the workload of operators and avoiding insufficient orthopedic accuracy caused by positioning deviation during manual operation. This invention utilizes the combination of a first pulley, a second pulley, a connecting rope, a telescopic column, a limiting block, a spring, a lifting frame, and an insert plate to continuously heat the target area. This avoids the problem of decreased plasticity and increased deformation resistance in castings due to heat dissipation and cooling, ensuring that the material is always in an ideal state of easy deformation during the straightening process, reducing the amount of springback after straightening, and ensuring the final dimensional accuracy and shape consistency of the casting. This invention, through the cooperation of structures such as a fixed block, a positioning frame, a transmission roller, a stepper motor, a button, and a connecting frame, enables the positioning frame to rotate the steel alloy casting when the orthopedic plate moves downward. Without the need for additional drive or control components, the casting can be quickly adjusted to the optimal posture before the orthopedic operation, ensuring that the orthopedic plate is precisely fitted to the target orthopedic area, and effectively improving the orthopedic accuracy. This invention utilizes the combination of a positioning frame, mounting ring, fixing block, bidirectional threaded rod, and mounting block to drive the fixing block to move in opposite directions or in opposite directions via the rotational transmission of the bidirectional threaded rod. Combined with the clamping groove on the fixing block, it achieves stable clamping and positioning of alloy cast steel parts of different sizes and specifications, avoiding displacement and shaking of the castings during the straightening and flipping process, and ensuring the stability and accuracy of the straightening operation. This invention utilizes the cooperation of structures such as a carrier plate, lifting frame, insert plate, telescopic column, and limiting block, and employs the locking and limiting structure of the limiting block and the limiting groove to precisely constrain the telescopic stroke of the telescopic column, effectively preventing the telescopic column from detaching outside the carrier plate and avoiding component misalignment, equipment failure, and interruption of the straightening and heating operation caused by the telescopic column detaching. This invention utilizes the cooperation of a first pulley, a second pulley, a connecting rope, a cover plate, and a counterweight plate to drive the cover plate to move downwards and reset synchronously during the process of the straightening plate completing the straightening operation and resetting upwards. This achieves automatic isolation of the heater and avoids energy waste caused by the heater continuously running idle. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the electric slide rail of the present invention; Figure 3 This is a schematic diagram of the structure of the heat insulation shell of the present invention; Figure 4 This is a schematic diagram of the power mechanism of the present invention; Figure 5 This is a schematic diagram of the fixing mechanism of the present invention; Figure 6 This is a schematic diagram of the positioning frame of the present invention; Figure 7 This is a schematic diagram of the connecting frame of the present invention; Figure 8 This is a schematic diagram of the structure of the expansion plate of the present invention; Figure 9 This is a schematic diagram of the structure of the second pulley of the present invention; Figure 10 This is a schematic diagram of the structure of the transmission roller of the present invention; Figure 11 This is a schematic diagram of the lifting frame of the present invention; Figure 12This is a schematic diagram of the structure of the telescopic column of the present invention.

[0015] The components include: 1. Support frame; 2. Electric slide rail; 3. Heat insulation shell; 4. Heater; 5. Fixing mechanism; 6. Orthotic plate; 7. Power mechanism; 8. Lifting mechanism; 501. Positioning frame; 502. Mounting ring; 503. Fixing block; 504. Bidirectional threaded rod; 505. Mounting block; 506. Fixing rod; 507. Transmission roller; 508. Stepper motor; 701. Connecting plate; 702. Extension plate; 703. Electro-hydraulic rod; 704. First pulley; 705. Second pulley; 706. Connecting rope; 707. Connecting frame; 708. Threaded sleeve; 801. Cover plate; 802. Counterweight plate; 803. Lifting frame; 804. Insert plate; 805. Support sleeve; 806. Button; 807. Telescopic column; 808. Limiting block; 809. Spring; 810. Carrier plate. Detailed Implementation

[0016] To make the technical means, creative features, and achieved objectives and effects of this invention easier to understand, the invention is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this invention. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0017] Example: The present invention provides, as follows Figure 1 , Figure 2 and Figure 3 The large and medium-sized steel alloy casting straightening mechanism shown includes two support frames 1, an electric slide rail 2 fixed between the two support frames 1, a straightening plate 6 for straightening the steel alloy casting is provided below the electric slide rail 2, a heater 4 is also provided below the straightening plate 6, the heater 4 is used to heat the steel alloy casting before straightening, and the heater 4 is also provided with a heat insulation shell 3 to protect it.

[0018] As can be seen from the above, when in use, the steel alloy casting that needs to be shaped is placed on top of the heat insulation shell 3, the steel alloy casting that needs to be shaped is heated by the heater 4, and the shaped plate 6 is moved to the position where the steel alloy casting needs to be shaped by the electric slide rail 2, and the steel alloy casting is shaped by the shaped plate 6.

[0019] refer to Figure 3 , Figure 4 and Figure 5 As shown, there are two casting fixing mechanisms 5 symmetrically arranged below the orthopedic plate 6 to clamp the steel alloy casting. refer to Figure 4 , Figure 5 and Figure 6 As shown, the casting fixing mechanism 5 includes two positioning frames 501 disposed between the heat insulation shell 3 and the straightening plate 6. Two transmission rollers 507 supporting the two positioning frames 501 are disposed below each of the two positioning frames 501. Two fixing blocks 503 clamping the steel alloy casting are disposed inside each of the two positioning frames 501. A power mechanism 7 is also provided between the electric slide rail 2 and the orthotic plate 6 to fix the casting fixing mechanism 5, and the power mechanism 7 can also drive the orthotic plate 6 to move downward. The interior of the heat insulation shell 3 is also provided with a lifting mechanism 8 for raising and lowering the heater 4. The lifting mechanism 8 includes two cover plates 801 on the top of the heat insulation shell 3. The two cover plates 801 are hinged to the top of the heat insulation shell 3 and are located directly above the heater 4.

[0020] refer to Figure 4 , Figure 5 and Figure 6 As shown, each of the two positioning frames 501 has a mounting ring 502 fixed on the side that is far apart from each other. The mounting ring 502 is rotatably connected to a bidirectional threaded rod 504, and a fixing rod 506 is also fixed between the two positioning frames 501. A mounting block 505 is also fixed on the side of the fixing block 503 away from the orthopedic plate 6. The two ends of the bidirectional threaded rod 504 are also provided with symmetrical threads at both ends, and the middle of the mounting block 505 is provided with a first threaded hole that is compatible with the bidirectional threaded rod 504. The two ends of the mounting block 505 pass through the two mounting blocks 505 respectively, and the two ends of the bidirectional threaded rod 504 are rotatably connected to the inner wall of the mounting ring 502. The middle part of the bidirectional threaded rod 504 is also fixed with a handle for easy gripping. The two fixing blocks 503 are also provided with clamping grooves on the opposite side to facilitate the fixing of the steel alloy casting. When it is necessary to clamp the steel alloy casting, rotate the handle, and the handle drives the bidirectional threaded rod 504 to rotate. The bidirectional threaded rod 504 cooperates with the mounting block 505 to make the distance between the two fixing blocks 503 larger or smaller, thereby clamping the steel alloy casting through the two fixing blocks 503.

[0021] refer to Figure 6 , Figure 7 and Figure 8 As shown, the power mechanism 7 includes a connecting plate 701 fixed to the bottom of the electric slide rail 2. Two extension plates 702 are fixed to both sides of the connecting plate 701, and two connecting brackets 707 are fixed to the bottom of the two extension plates 702. The bottom of the two connecting frames 707 is provided with extension hooks, and the outer wall of the positioning frame 501 is provided with an annular groove, in which the extension hooks are inserted. The extension hooks are L-shaped, with the bends of the two extension hooks facing the annular groove of the positioning frame 501. The connecting plate 701 and the two expansion plates 702 are spliced ​​together to form a cross shape. When the slider of the electric slide rail 2 moves laterally back and forth, the slider of the electric slide rail 2 drives the connecting plate 701 to move laterally back and forth. The connecting plate 701 drives the expansion plate 702 to move laterally back and forth. The expansion plate 702 drives the connecting frame 707 to move laterally back and forth. The connecting frame 707 drives the positioning frame 501 to move laterally back and forth. The positioning frame 501 drives the steel casting alloy that needs to be shaped to move laterally back and forth through the fixing block 503, moving the steel casting alloy that needs to be shaped above the heater 4.

[0022] refer to Figure 7 and Figure 8 As shown, an electric hydraulic rod 703 is also fixed to the bottom of the connecting plate 701. The telescopic end of the electric hydraulic rod 703 is movably connected to a threaded sleeve 708. The bottom of the threaded sleeve 708 is fixed to the top of the straightening plate 6. The telescopic end of the extension plate 702 is provided with a threaded part, and the middle of the threaded sleeve 708 is provided with a second threaded hole that is compatible with the extension plate 702. The bottom of the threaded sleeve 708 is fixed to the top of the straightening plate 6. The threaded sleeve 708 is screwed into the lower half of the threaded part. When the straightening plate 6 is rotated, the straightening plate 6 drives the threaded sleeve 708 to rotate. The second threaded hole of the threaded sleeve 708 mates with the threaded part of the electric hydraulic rod 703, and the straightening plate 6 is installed at the bottom of the telescopic end of the electric hydraulic rod 703.

[0023] refer to Figure 8 and Figure 9 As shown, two first pulleys 704 are symmetrically fixed at the bottom of the connecting plate 701, and two second pulleys 705 are provided at the top of the heat insulation shell 3. A connecting rope 706 is also provided between the first pulleys 704 and the second pulleys 705. One end of the connecting rope 706 passes over the second pulley 705 and the first pulley 704 and is fixed to the top of the orthotic plate 6, while the other end of the connecting rope 706 away from the orthotic plate 6 is fixed to the top of the cover plate 801. Both ends of the connecting rope 706 are fixed with connecting hooks, and the top of the orthotic plate 6 and the bottom of the connecting plate 701 are fixed with collars. The connecting hooks are connected to the collars. When the telescopic end of the first pulley 704 drives the orthotic plate 6 to move downward, the orthotic plate 6 drives the collar to move downward. The collar moves downward through the connecting hook, causing the connecting rope 706 to drive the cover plate 801 to flip upward.

[0024] When it is necessary to straighten the steel alloy casting, the preheated steel alloy casting is placed between the two positioning frames 501. The bidirectional threaded rod 504 is rotated, and the bidirectional threaded rod 504 cooperates with the mounting block 505 to increase or decrease the distance between the two fixing blocks 503, thereby clamping the steel alloy casting through the two fixing blocks 503. After the straightening plate 6 is screwed to the threaded part of the first pulley 704, the electric slide rail 2 drives the connecting plate 701 to move laterally. The connecting plate 701 drives the straightening plate 6 to move laterally through the first pulley 704. The telescopic end of the first pulley 704 drives the straightening plate 6 to move downward, thereby straightening the steel alloy casting through the straightening plate 6.

[0025] refer to Figure 10 , Figure 11 and Figure 12 As shown, the lifting mechanism 8 also includes a carrier plate 810 installed inside the heat insulation shell 3 and a lifting frame 803 for storing the heater 4 inside the heat insulation shell 3. Insert plates 804 are fixed on both sides of the lifting frame 803, and a spring 809 for pushing the lifting frame 803 to move upward is also provided inside the carrier plate 810. The top of the lifting frame 803 is also fixed with several support sleeves 805 to support the heater 4, and the top of the support sleeves 805 is fixed to the bottom of the insert plate 804. The spring 809 is located on the side of the insert plate 804 away from the lifting frame 803. The side of the carrier plate 810 near the lifting frame 803 has a limiting groove that matches the insert plate 804. The side of the insert plate 804 away from the lifting frame 803 is inserted into the limiting groove, and the spring 809 is installed in the limiting groove.

[0026] refer to Figure 10 , Figure 11 and Figure 12 As shown, a telescopic column 807 is also inserted inside the carrier plate 810, and a limit block 808 is fixed to the bottom of the outer wall of the telescopic column 807. The bottom of the telescopic column 807 contacts the top of the insert plate 804, and the end of the limiting block 808 away from the telescopic column 807 extends to the outside of the limiting groove. The telescopic column 807 passes through the limiting groove and contacts the bottom of the cover plate 801. When the cover plate 801 flips upward, the cover plate 801 separates from the heat insulation shell 3. After the telescopic column 807 loses pressure, the spring 809 releases its elastic force. The spring 809 pushes the insert plate 804 and the telescopic column 807 to move upward. The insert plate 804 drives the lifting frame 803 to move upward. The lifting frame 803 drives the heater 4 to move upward through the support sleeve 805, so that the heater 4 moves to the outside of the heat insulation shell 3. The heater 4 heats the steel alloy casting that needs to be shaped.

[0027] refer to Figure 10 , Figure 11 and Figure 12 As shown, two counterweight plates 802 are also fixed to the top of the two cover plates 801, and the two counterweight plates 802 are set on the opposite side of the two cover plates 801. Two buttons 806 are fixed to the inner wall of the heat insulation shell 3, and several stepper motors 508 are fixed to the top of the heat insulation shell 3. The output shaft of the stepper motor 508 is fixed to the side of the transmission roller 507 near the cover plate 801. The buttons 806 are electrically connected to the stepper motors 508. The heat insulation housing 3 is also equipped with a controller. Button 806 is connected to the controller via a wire, and transmission roller 507 is connected to the controller via a wire. The controller can control the number of rotations of transmission roller 507. The model of the controller can be found in the BH42 kit produced by Dongguan Bobai Automation Technology Co., Ltd. When the first pulley 704 moves the orthotic plate 6 upward, the connecting rope 706 loses tension. The gravity of the cover plate 801 and the counterweight plate 802 drives the cover plate 801 downward, so that the cover plate 801 contacts the heat insulation shell 3 and closes the heat insulation shell 3. The cover plate 801 applies pressure to the telescopic column 807, and the telescopic column 807 pushes the insert plate 804 downward. The insert plate 804 drives the support sleeve 805 downward through the lifting frame 803. The support sleeve 805 drives the heater 4 downward, so that the heater 4 re-enters the interior of the heat insulation shell 3, completing the reset of the heater 4. At the same time, the insert plate 804 moves downward and contacts the button 806. The button 806 drives the transmission roller 507 to rotate through the controller. The transmission roller 507 drives the positioning frame 501 to rotate, so that the positioning frame 501 is reset.

[0028] When the insert plate 804 moves upward, it contacts the button 806. The button 806 drives the output shaft of the stepper motor 508 to rotate. The stepper motor 508 drives the transmission roller 507 to rotate. The transmission roller 507 drives the positioning frame 501 to rotate around the axis of the positioning frame 501. The positioning frame 501 drives the fixing block 503 to rotate around the axis of the positioning frame 501. The fixing block 503 drives the steel alloy casting that needs to be straightened to rotate, so that the heated side flips to the underside of the straightening plate 6, and the straightening plate 6 straightens the steel alloy casting.

[0029] When the orthotic plate 6 moves downward, it drives the collar downward. The collar moves downward through the connecting hook, causing the connecting rope 706 to cause the cover plate 801 to flip upward. The cover plate 801 flips upward and separates from the heat insulation shell 3. After the telescopic column 807 loses pressure, the spring 809 releases its elastic force. The spring 809 pushes the insert plate 804 and the telescopic column 807 upward. The insert plate 804 drives the lifting frame 803 upward. The lifting frame 803 drives the heater 4 upward through the support sleeve 805, so that the heater 4 moves to the outside of the heat insulation shell 3. The heater 4 then... The steel alloy casting that needs to be straightened is heated, and at the same time, the insert plate 804 contacts the button 806. The button 806 drives the output shaft of the stepper motor 508 to rotate. The stepper motor 508 drives the transmission roller 507 to rotate. The transmission roller 507 drives the positioning frame 501 to rotate around the axis of the positioning frame 501. The positioning frame 501 drives the fixing block 503 to rotate around the axis of the positioning frame 501. The fixing block 503 drives the steel alloy casting that needs to be straightened to rotate, so that the heated side flips to the underside of the straightening plate 6, and the straightening plate 6 straightens the steel alloy casting.

[0030] Working principle: When it is necessary to straighten the steel alloy casting, the preheated steel alloy casting is placed between two positioning frames 501. The bidirectional threaded rod 504 is rotated, and the bidirectional threaded rod 504 cooperates with the mounting block 505 to make the distance between the two fixing blocks 503 larger or smaller, thereby clamping the steel alloy casting through the two fixing blocks 503. After the straightening plate 6 is screwed to the threaded part of the first pulley 704, the electric slide rail 2 drives the connecting plate 701 to move laterally. The connecting plate 701 drives the straightening plate 6 to move laterally through the first pulley 704. The telescopic end of the first pulley 704 drives the straightening plate 6 to move downward, and the straightening plate 6 straightens the steel alloy casting. When the orthotic plate 6 moves downward, it drives the collar downward. The collar moves downward through the connecting hook, causing the connecting rope 706 to cause the cover plate 801 to flip upward. The cover plate 801 flips upward and separates from the heat insulation shell 3. After the telescopic column 807 loses pressure, the spring 809 releases its elastic force. The spring 809 pushes the insert plate 804 and the telescopic column 807 upward. The insert plate 804 drives the lifting frame 803 upward. The lifting frame 803 drives the heater 4 upward through the support sleeve 805, so that the heater 4 moves to the outside of the heat insulation shell 3. The heater 4 then... The steel alloy casting that needs to be straightened is heated, and at the same time, the insert plate 804 contacts the button 806. The button 806 drives the output shaft of the stepper motor 508 to rotate. The stepper motor 508 drives the transmission roller 507 to rotate. The transmission roller 507 drives the positioning frame 501 to rotate around the axis of the positioning frame 501. The positioning frame 501 drives the fixing block 503 to rotate around the axis of the positioning frame 501. The fixing block 503 drives the steel alloy casting that needs to be straightened to rotate, so that the heated side flips to the underside of the straightening plate 6, and the straightening plate 6 straightens the steel alloy casting.

[0031] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A straightening mechanism for large and medium-sized steel alloy castings, comprising two support frames (1), an electric slide rail (2) fixed between the two support frames (1), a straightening plate (6) for straightening the steel alloy castings being disposed below the electric slide rail (2), a heater (4) being disposed below the straightening plate (6), the heater (4) being used to heat the steel alloy castings before straightening, and an insulating shell (3) protecting the heater (4) being disposed outside the heater (4), characterized in that, Below the orthopedic plate (6) there are two symmetrical casting fixing mechanisms (5) for clamping steel alloy castings. The casting fixing mechanism (5) includes two positioning frames (501) disposed between the heat insulation shell (3) and the straightening plate (6). Two transmission rollers (507) supporting the two positioning frames (501) are provided below each of them. Two fixing blocks (503) clamping the steel alloy casting are provided inside each of the two positioning frames (501). A power mechanism (7) for fixing the casting fixing mechanism (5) is also provided between the electric slide rail (2) and the orthopedic plate (6), and the power mechanism (7) can also drive the orthopedic plate (6) to move downward. The interior of the heat insulation shell (3) is also provided with a lifting mechanism (8) for raising and lowering the heater (4). The lifting mechanism (8) includes two cover plates (801) on the top of the heat insulation shell (3). The two cover plates (801) are hinged to the top of the heat insulation shell (3) and the cover plates (801) are located directly above the heater (4).

2. The straightening mechanism for large and medium-sized steel alloy castings according to claim 1, characterized in that, Each of the two positioning frames (501) is fixed with a mounting ring (502) on the side away from each other. The mounting ring (502) is rotatably connected with a bidirectional threaded rod (504), and a fixing rod (506) is also fixed between the two positioning frames (501). The fixing block (503) is also fixed with an mounting block (505) on the side away from the orthopedic plate (6). The two ends of the bidirectional threaded rod (504) are also provided with symmetrical threads, and the mounting block (505) has a first threaded hole in the middle that is compatible with the bidirectional threaded rod (504).

3. The straightening mechanism for large and medium-sized steel alloy castings according to claim 1, characterized in that, The power mechanism (7) includes a connecting plate (701) fixed to the bottom of the electric slide rail (2), two extension plates (702) are fixed on both sides of the connecting plate (701), and two connecting brackets (707) are fixed at the bottom of the two extension plates (702). The bottom of the two connecting frames (707) is provided with an extension hook, and the outer wall of the positioning frame (501) is provided with an annular groove, and the extension hook is inserted into the annular groove.

4. The straightening mechanism for large and medium-sized steel alloy castings according to claim 3, characterized in that, The bottom of the connecting plate (701) is also fixed with an electric hydraulic rod (703), and the telescopic end of the electric hydraulic rod (703) is movably connected with a threaded sleeve (708). The bottom of the threaded sleeve (708) is fixed to the top of the orthotic plate (6). The telescopic end of the electric hydraulic rod (703) is provided with a threaded part, and the middle part of the threaded sleeve (708) is provided with a second threaded hole that is compatible with the expansion plate (702).

5. A straightening mechanism for large and medium-sized steel alloy castings according to claim 3, characterized in that, The bottom of the connecting plate (701) is also symmetrically fixed with two first pulleys (704), and the top of the heat insulation shell (3) is provided with two second pulleys (705). A connecting rope (706) is also provided between the first pulleys (704) and the second pulleys (705). One end of the connecting rope (706) passes over the second pulley (705) and the first pulley (704) and is fixed to the top of the orthotic plate (6), and the other end of the connecting rope (706) away from the orthotic plate (6) is fixed to the top of the cover plate (801).

6. A straightening mechanism for large and medium-sized steel alloy castings according to claim 1, characterized in that, The lifting mechanism (8) also includes a carrier plate (810) installed inside the heat insulation shell (3) and a lifting frame (803) for storing the heater (4) inside the heat insulation shell (3). Insert plates (804) are fixed on both sides of the lifting frame (803), and a spring (809) is provided inside the carrier plate (810) to push the lifting frame (803) to move upward. The top of the lifting frame (803) is also fixed with several support sleeves (805) to support the heater (4), and the top of the support sleeves (805) is fixed to the bottom of the insert plate (804).

7. A straightening mechanism for large and medium-sized steel alloy castings according to claim 6, characterized in that, The carrier plate (810) is also equipped with a telescopic column (807), and a limit block (808) is fixed at the bottom of the outer wall of the telescopic column (807). The bottom of the telescopic column (807) contacts the top of the insert plate (804), and the end of the limiting block (808) away from the telescopic column (807) extends to the outside of the limiting groove. The telescopic column (807) passes through the limiting groove and contacts the bottom of the cover plate (801).

8. A straightening mechanism for large and medium-sized steel alloy castings according to claim 7, characterized in that, Two counterweight plates (802) are also fixed to the top of the two cover plates (801), and the two counterweight plates (802) are arranged on the opposite side of the two cover plates (801); The inner wall of the heat insulation shell (3) is also fixed with two buttons (806), and the top of the heat insulation shell (3) is also fixed with several stepper motors (508). The output shaft of the stepper motor (508) is fixed to the side of the transmission roller (507) near the cover plate (801), and the button (806) is electrically connected to the stepper motor (508).

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