A post-forging heat treatment device and method for high-performance large ring blanks

Abstract

This invention relates to the field of post-forging heat treatment technology for large ring parts, and more specifically, provides an apparatus and method for post-forging heat treatment of high-performance large ring part blanks. The invention includes two transverse tracks disposed in the working environment, and a lifting assembly movable along the transverse tracks. The lifting assembly includes a base, a lifting member, and a lifting frame driven by the lifting member. It also includes a workpiece bearing assembly for carrying the ring part blank, specifically including a bearing seat, a follow-up feeding mechanism, and an anti-slip blocking mechanism. A displacement part and a trigger limiting part are provided inside the bearing rod. When the bearing frame unexpectedly slides forward, the unloaded displacement part is pushed by the bearing frame, which in turn drives the trigger block to move through the connecting column. The inclined surface of the trigger groove forces the trigger column to rise, thereby pushing the limiting block out of the retraction groove and forming a mechanical block at the front end of the bearing frame.

Description

Technical Field

[0001] This invention relates to the field of post-forging heat treatment technology for large ring components, and more specifically, to an apparatus and method for post-forging heat treatment of high-performance large ring component blanks. Background Technology

[0002] Large ring-shaped blanks (such as wind turbine flanges, nuclear power plant cylinder sections, and wheel hubs) typically require post-forging heat treatment after forging to eliminate forging stress and improve their microstructure and properties. Existing post-forging heat treatment equipment generally includes a transverse track, a lifting assembly that moves along the transverse track, and a workpiece support positioned beside the transverse track. The lifting frame in the lifting assembly moves to below the workpiece support, lifts the support frame carrying the ring-shaped blank, and then transfers it to a quenching tank for cooling.

[0003] With the development of new energy equipment and high-end manufacturing, the performance requirements for large ring components are increasing, especially for high-performance ring components used in key parts such as wind power flanges and nuclear power cylinder sections. These components not only require high strength and high toughness, but also require uniform microstructure and extremely low residual stress levels. Therefore, the post-forging heat treatment process must be more precise, stable, and efficient. Any uneven cooling in any area, bumps during the transfer process, or accidental slippage can lead to a deterioration of the internal stress distribution of the billet, or even the generation of microcracks, ultimately affecting the quality and service life of the finished product.

[0004] However, the existing devices described above have at least the following problems in actual production: Traditional workpiece carriers are usually fixed on the waiting station next to the quenching tank, and the lifting frame needs to move a long distance each time until it is fully inserted into the bottom of the carrier to complete the material retrieval. Due to the large insertion stroke and long idle time, the heat treatment cycle of a single piece is long, making it difficult to meet the high-efficiency requirements of mass production. Some improvement schemes attempt to enable the carrier to move to shorten the moving distance of the lifting frame. However, in actual operation, the carrier is prone to unexpected slippage during movement due to factors such as inertia, uneven guide rail resistance, or transmission clearance, causing the carrier frame to shift relative to the carrier rod, which in turn causes the center of gravity of the ring blank to shift or even tip over. This not only causes equipment damage but may also lead to safety accidents, especially for heavy, high-value, high-performance rings, where the losses are more severe.

[0005] Therefore, how to improve material receiving efficiency while effectively preventing unexpected slippage of the workpiece carrier during movement, and ensuring the safety and reliability of high-performance large ring components throughout the heat treatment process, is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0006] The present invention aims to provide a forging heat treatment apparatus and method for high-performance large ring blanks, so as to solve the technical problems of low material handling efficiency, unexpected slippage of workpiece bearing components during follow-up process and lack of effective automatic protection in the prior art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a post-forging heat treatment apparatus for high-performance large ring blanks, comprising two transverse tracks disposed in the working environment, and a lifting assembly movable along the transverse tracks, the lifting assembly comprising a base, a lifting member, and a lifting frame driven by the lifting member; further comprising:

[0008] A workpiece bearing assembly for carrying ring blanks includes a bearing seat, a follower feeding mechanism, and an anti-slip shielding mechanism. The bearing seat is disposed on the side of the transverse track. The follower feeding mechanism is slidably installed in the bearing seat. When the lifting frame moves toward the follower feeding mechanism for insertion, the follower feeding mechanism moves toward the lifting frame. When the lifting frame resets, the follower feeding mechanism is driven to reset synchronously.

[0009] The follow-up feeding mechanism specifically includes several inlet and outlet tracks set inside the bearing seat, a bearing plate slidably set on the inlet and outlet tracks, a number of evenly arranged bearing columns installed on the bearing plate, a bearing rod installed above the same column of bearing columns, and a bearing frame placed on the upper end of the multiple bearing rods.

[0010] An anti-slip blocking mechanism is installed at the top of the support rod. The anti-slip blocking mechanism specifically includes a displacement part and a trigger limiting part. The displacement part and the trigger limiting part are respectively installed at both ends inside the support rod, with the displacement part located at the end away from the lifting frame. When the follow-up feeding mechanism is displaced during the feeding process, it can be triggered and push the trigger limiting part upward to prevent the support frame from continuing to displace.

[0011] A further technical solution of this application: a quenching tank is provided between the two transverse tracks in the working environment, and the lifting assembly also includes a lowering port opened inside the base. The lowering port is used to allow the lifting frame below the lifting component to enter the quenching tank for quenching treatment.

[0012] A further technical solution of this application: pushers are provided on both sides of the base, and mounting brackets are installed on the pushers. A vertical plate is connected inside the mounting bracket, and a lifting member is installed inside the vertical plate. The power output end of the lifting member is connected to the mounting plate, and the lifting bracket is installed on the mounting plate.

[0013] Further technical solution of this application:

[0014] The inner side of the bearing seat is also provided with an installation groove. An installation shaft is installed in the installation groove near the side of the lifting frame. A first drive tooth and a second drive tooth are installed sequentially from top to bottom on the outer side of the installation shaft. One end of a connecting rod is connected to the side of the bearing plate near the installation groove. The other end of the connecting rod is connected to a second side rack that meshes with the second drive tooth.

[0015] The lifting frame is provided with a first side rack on its side, and the first side rack is engaged with the outside of the first drive tooth.

[0016] Further technical solution of this application:

[0017] When the support frame is placed above the support rod, it applies pressure to part of the displacement portion. The unloaded displacement portion is located in the gap inside the support frame. When the support frame is displaced, the unloaded displacement portion is pushed by the support frame and drives the trigger limiting part to move. The trigger limiting part simultaneously blocks the front end of the support frame.

[0018] A further technical solution of this application: The displacement part specifically includes a displacement groove, a displacement block, a plurality of grooves opened on the displacement block, and a spring disposed inside a single groove. A pressure block is also slidably connected inside the single groove, and the lower end of the pressure block is in contact with the spring.

[0019] The displacement groove is formed inside the bearing rod, and the displacement block is slidably disposed inside the displacement groove;

[0020] The bearing rod also has a through cavity inside, and a connecting post is inserted into the cavity. The two ends of the connecting post are respectively connected to the side of the displacement block and the trigger limiting part.

[0021] A further technical solution of this application: The trigger limiting part specifically includes a retraction groove and a trigger block. The retraction groove is opened inside the bearing rod at one end away from the displacement groove. The trigger block is slidably installed inside the retraction groove, and one end of the connecting column is connected to the outside of the trigger block. The trigger block has a trigger groove that slopes from bottom to top inside.

[0022] A trigger post is inserted into the trigger groove, and a trigger lifting groove is symmetrically opened in the retraction groove corresponding to the position of the trigger post, and the two ends of the trigger post are slidably installed in the trigger lifting groove.

[0023] A limit block is also installed on the outside of the trigger post.

[0024] A further technical solution of this application: a reset spring is also sleeved on one end of the connecting column connected to the displacement block, and the reset spring abuts against the displacement groove and the side of the displacement block.

[0025] A further technical solution of this application: the inner sides of the bearing seat are also equipped with blocking blocks located on the outer side of the entry and exit track, and the height of the blocking blocks is level with the upper end surface of the bearing plate.

[0026] A method for post-forging heat treatment of high-performance large ring blanks, the method comprising the following steps:

[0027] Step 1: Place the support frame on the support rod, so that the displaced part is pressed by the support frame, and the unpressed part is in the gap of the support frame; the lifting frame is in the initial position, and the follow-up feeding mechanism is in the waiting position in the support seat;

[0028] Step 2: Drive the lifting frame to move towards the bearing seat. The first side rack on the lifting frame drives the first drive tooth to rotate. The first drive tooth drives the second drive tooth to rotate synchronously through the mounting shaft. The second drive tooth meshes with and drives the second side rack and connecting rod, pushing the bearing plate to slide along the inlet and outlet track towards the lifting frame, realizing follow-up feeding and reducing the moving distance of the lifting frame.

[0029] Step 3: The lifting frame lifts the bearing frame and the ring blank as a whole, completing the material removal of the ring blank. The lifting frame carries the bearing frame and the ring blank in the opposite direction. At the same time, the first side rack drives the first drive tooth and the second drive tooth in the opposite direction, so that the second side rack and the bearing plate move in the opposite direction relative to the lifting frame, gradually returning to the waiting position in the bearing seat.

[0030] Step 4: In step 2, if the bearing frame slides forward unexpectedly relative to the bearing rod, the bearing frame pushes the displacement block to move along the displacement groove, which in turn moves the trigger block. The trigger groove in the trigger block forces the trigger pin to rise along the trigger lifting groove, thereby causing the limit block to push upward out of the retraction groove, forming a mechanical block on the front end of the bearing frame and preventing the sliding from continuing to expand.

[0031] Step 5: The lifting frame moves above the lowering opening, and the lifting component drives the lifting frame to descend, placing the ring blank and workpiece bearing assembly into the quenching tank for post-forging heat treatment.

[0032] Compared with the prior art, the technical solution provided by this invention has the following advantages:

[0033] 1. This invention, by setting a follow-up feeding mechanism, can synchronously drive the bearing plate to move along the entry and exit track towards the lifting frame when the lifting frame moves towards the bearing seat, thus achieving opposite movement. This significantly shortens the insertion stroke of the lifting frame, reduces idle stroke time, shortens the single material picking cycle, and significantly improves the overall efficiency of post-forging heat treatment. When the lifting frame is reset, the follow-up feeding mechanism drives the bearing plate to synchronously reset to the waiting position through reverse meshing transmission. No additional power source or control system is required. The structure is compact, the operation is reliable, and the reset accuracy is high.

[0034] 2. This invention incorporates a displacement section and a trigger limiting section within the support rod. When the support frame unexpectedly slides forward, the unloaded displacement section is pushed by the support frame, which in turn moves the trigger block via the connecting column. The inclined surface of the trigger groove forces the trigger column to rise, thereby pushing the limiting block out of the retraction groove and creating a mechanical block at the front end of the support frame. This mechanism relies entirely on mechanical linkage, requiring no sensors or electrical control, resulting in rapid response, high reliability, and effectively preventing the support frame from detaching or the billet from tipping over.

[0035] 3. This invention integrates the follow-up feeding mechanism and the anti-slip shielding mechanism within the workpiece bearing assembly, without occupying additional space. Furthermore, it utilizes mechanical components, resulting in low manufacturing costs and facilitating the upgrading of existing equipment. Operation is simple, maintenance is convenient, and the entire working process is fully automated, requiring no manual intervention. All moving parts are easy to disassemble and replace, making maintenance convenient. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a top view of the structure of the present invention; Figure 3 This is a three-dimensional structural diagram of the present invention; Figure 4 This is a cross-sectional structural diagram of the present invention; Figure 5 For the present invention Figure 4 A magnified structural diagram of point A in the middle.

[0037] Explanation of the labels in the diagram:

[0038] 1. Base; 2. Horizontal track; 3. Lowering port; 4. Pushing component; 5. Mounting plate; 6. Vertical plate; 7. Lifting component; 8. Lifting frame; 9. Mounting slot; 10. Mounting shaft; 11. First drive gear; 12. Bearing frame; 13. Bearing seat; 14. Blocking block; 15. Inlet / outlet track; 16. Bearing plate; 17. Bearing column; 18. Bearing rod; 19. Mounting frame; 20. Trigger column; 21. Trigger lifting slot; 22. Connecting rod; 23. First side rack; 24. Second side rack; 25. Second drive gear; 26. Connecting column; 27. Displacement block; 28. Spring; 29. ​​Pressure block; 30. Trigger inclined slot; 31. Retraction slot; 32. Displacement slot; 33. Trigger block; 34. Limiting block; 35. Reset spring. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. The present invention will be further described below with reference to the embodiments.

[0040] Example 1

[0041] Please see Figures 1 to 5 In one embodiment of this application, a post-forging heat treatment apparatus for high-performance large ring blanks is disclosed. The apparatus of this embodiment includes two parallel transverse tracks 2 arranged in a working environment, and a lifting assembly movable along the transverse tracks 2. The lifting assembly includes a base 1, a lifting member 7, and a lifting frame 8 driven by the lifting member 7. A quenching tank is provided between the two transverse tracks 2 within the working environment. A lowering opening 3 is provided inside the base 1 for the lifting frame 8 below the lifting member 7 to enter the quenching tank for quenching treatment.

[0042] Pushing components 4 are provided on both sides of the base 1. A mounting bracket 19 is installed on the pushing component 4. A vertical plate 6 is connected inside the mounting bracket 19. A lifting component 7 is installed inside the vertical plate 6. The power output end of the lifting component 7 is connected to a mounting plate 5. A lifting frame 8 is installed on the mounting plate 5.

[0043] This embodiment also includes a workpiece bearing assembly for carrying the ring blank. The workpiece bearing assembly specifically includes a bearing seat 13, a follow-up feeding mechanism, and an anti-slip blocking mechanism. The bearing seat 13 is disposed on the side of the transverse track 2, and the follow-up feeding mechanism is slidably installed within the bearing seat 13. The anti-slip blocking mechanism is disposed on top of the follow-up feeding mechanism.

[0044] The follow-up feeding mechanism includes several inlet and outlet rails 15 disposed inside the bearing seat 13 and a bearing plate 16 slidably disposed on the inlet and outlet rails 15. Multiple evenly arranged bearing columns 17 are installed on the bearing plate 16, and a bearing rod 18 is installed above the same column of bearing columns 17. A bearing frame 12 is placed on the upper end of the multiple bearing rods 18.

[0045] The inner side of the support base 13 is also provided with a mounting groove 9. A mounting shaft 10 is installed in the mounting groove 9 near the side of the lifting frame 8. A first drive tooth 11 and a second drive tooth 25 are installed sequentially from top to bottom on the outer side of the mounting shaft 10. One end of a connecting rod 22 is connected to the side of the support plate 16 near the mounting groove 9. The other end of the connecting rod 22 is connected to a second side rack 24 that meshes with the second drive tooth 25. A first side rack 23 is provided on the side of the lifting frame 8, and the first side rack 23 meshes with the outer side of the first drive tooth 11.

[0046] The working principle of the above-mentioned follow-up feeding mechanism is as follows: when the lifting frame 8 moves toward the follow-up feeding mechanism for insertion, the follow-up feeding mechanism moves toward the lifting frame 8; when the lifting frame 8 resets, it drives the follow-up feeding mechanism to reset synchronously.

[0047] The anti-slip shielding mechanism includes a displacement part and a trigger limiting part, which are respectively located at both ends inside the bearing rod 18, with the displacement part located at the end away from the lifting frame 8.

[0048] The displacement unit includes a displacement groove 32, a displacement block 27, multiple slots formed on the displacement block 27, and a spring 28 disposed inside each slot. A pressure block 29 is also slidably connected inside each slot, with its lower end contacting the spring 28. The displacement groove 32 is formed inside the support rod 18, and the displacement block 27 is slidably disposed inside the displacement groove 32. The support rod 18 also has a through cavity, into which a connecting post 26 is inserted. Both ends of the connecting post 26 are connected to the side of the displacement block 27 and a trigger limiting part, respectively. A return spring 35 is also sleeved at the end of the connecting post 26 connected to the displacement block 27, and the return spring 35 abuts against the displacement groove 32 and the side of the displacement block 27.

[0049] The trigger limiting part includes a retraction groove 31 and a trigger block 33. The retraction groove 31 is located inside the bearing rod 18 at the end away from the displacement groove 32. The trigger block 33 is slidably installed inside the retraction groove 31, and one end of the connecting post 26 is connected to the outside of the trigger block 33. The trigger block 33 has a trigger inclined groove 30 that slopes upwards from bottom to top. A trigger post 20 is inserted into the trigger inclined groove 30. A trigger lifting groove 21 is symmetrically provided inside the retraction groove 31 corresponding to the position of the trigger post 20. Both ends of the trigger post 20 are slidably installed inside the trigger lifting groove 21. A limiting block 34 is also installed on the outside of the trigger post 20.

[0050] Inside the bearing seat 13, on both sides outside the inlet / outlet track 15, there are also blocking blocks 14 installed. The height of the blocking blocks 14 is the same as the upper surface of the bearing plate 16.

[0051] The specific working principle of this embodiment is as follows: In the initial state, the lifting frame 8 is located at the initial position of the transverse track 2, the bearing plate 16 is located at the rear end of the inlet / outlet track 15 waiting position, the bearing frame 12 is placed on the bearing rod 18, and the ring blank is placed inside the bearing frame 12.

[0052] When material needs to be picked up, the pusher 4 drives the lifting assembly to move vertically towards the support seat 13. At this time, the first side rack 23, fixed to the side of the lifting frame 8, moves together with the lifting frame 8. Since the first side rack 23 meshes with the first drive tooth 11, the linear motion of the first side rack 23 is converted into the rotational motion of the first drive tooth 11. The first drive tooth 11 drives the coaxially fixed second drive tooth 25 to rotate synchronously through the mounting shaft 10. The second drive tooth 25 meshes with the second side rack 24, converting the rotational motion into the linear motion of the second side rack 24. The second side rack 24 pushes the support plate 16 to slide along the in-and-out track 15 towards the lifting frame 8 through the connecting rod 22.

[0053] Since the lifting frame 8 and the support plate 16 move towards each other, the lifting frame 8 only needs to move a short distance to insert its front end between the support rods 18 above the support plate 16, thus completing the insertion action. During this process, the sum of the horizontal movement distance of the lifting frame 8 and the horizontal movement distance of the support plate 16 is equal to the total stroke required for the lifting frame to move in the traditional scheme, thus significantly shortening the idle stroke time of the lifting frame.

[0054] Following material handling and synchronous resetting, once the lifting frame 8 is inserted between the support rods 18 above the support plate 16, the lifting component 7 is activated, its piston rod extends, and drives the lifting frame 8 to rise vertically via the mounting plate 5. It should be noted that during the lifting frame 8's ascent, the first side rack 23 fixed to its side also rises. However, because the first drive tooth 11 remains fixed in the horizontal direction, and the first side rack 23 has sufficient vertical length, the first side rack 23 and the first drive tooth 11 remain engaged throughout the entire ascent stroke and will not disengage.

[0055] When the lifting frame 8 rises, its upper part supports the bearing frame 12 above the bearing rod 18, and together with the ring blank, it separates from the bearing rod 18, thus completing the material removal.

[0056] Subsequently, the pusher 4 reverses its drive, causing the lifting assembly to move horizontally away from the support seat 13, i.e., in the reset direction. During this reverse movement, since the first side rack 23 and the first drive tooth 11 remain engaged, the reverse movement of the first side rack 23 causes the first drive tooth 11 to rotate in the opposite direction, which in turn drives the second drive tooth 25 to rotate in the opposite direction synchronously via the mounting shaft 10. The second drive tooth 25 drives the second side rack 24 to move in the opposite direction, and the second side rack 24 pulls the support plate 16 backward relative to the lifting frame 8 via the connecting rod 22.

[0057] In other words, when the lifting frame 8 moves forward carrying the blank, the bearing plate 16 moves backward relative to the lifting frame 8, gradually returning to the initial waiting position within the bearing seat 13. The reset process terminates when the end of the bearing plate 16 furthest from the transverse track 2 contacts the blocking block 14. Thus, the reset of the workpiece bearing component and the transfer of the blank are synchronized, requiring no additional power or control.

[0058] During the follow-up feeding process, that is, during the movement of the lifting frame 8 and the bearing plate 16 towards each other, if the bearing frame 12 slides forward unexpectedly relative to the bearing rod 18 due to inertia, uneven resistance in the track 15, transmission gap, or accidental impact, the anti-slip blocking mechanism will be automatically triggered. The specific process is as follows:

[0059] In the initial state, the support frame 12 is placed on the support rod 18. Due to the limited coverage area of ​​the bottom of the support frame 12, several pressure blocks 29 located at the end of the support rod 18 away from the lifting frame are not loaded by the support frame 12. Their tops extend upward under the elastic force of the spring 28, above the upper surface of the support rod 18, and into the gap at the bottom of the support frame 12. Meanwhile, the pressure block 29 located at the other end of the support rod 18 is loaded by the support frame 12, and the spring 28 is in a compressed state.

[0060] When the support frame 12 slides forward, the stiffener of the support frame 12 will first contact the high-position pressure block 29 that originally extended into its gap, pushing the pressure block 29. The side wall of the stiffener of the support frame 12 will directly push the displacement block 27 to slide forward along the displacement groove 32.

[0061] When the displacement block 27 slides forward, it pushes the trigger block 33 forward within the retraction groove 31 via the connecting column 26 fixedly connected to it. The trigger block 33 has a trigger groove 30 that gradually slopes inward from bottom to top. The trigger column 20 passes through this trigger groove 30, and both ends of the trigger column 20 are slidably mounted within the trigger lifting groove 21 on the side wall of the retraction groove 31. When the trigger block 33 moves forward, the inclined inner wall of the trigger groove 30 forces the trigger column 20 to rise upward along the trigger lifting groove 21. The trigger column 20 drives the limiting block 34 fixed to its outer side to move upward synchronously, causing the limiting block 34 to push upward out of the retraction groove 31 and protrude from the upper surface of the support rod 18. At this time, the limiting block 34 is located precisely outside the front end of the support frame 12, forming a mechanical block and preventing the support frame 12 from continuing to slide forward.

[0062] Once the external force causing the slippage is eliminated (e.g., the operator notices an abnormality and stops the machine), or the slippage is successfully prevented, the displacement block 27 slides backward and resets under the elastic force of the reset spring 35, driving the trigger block 33 to move backward via the connecting column 26. The trigger groove 30 forces the trigger column 20 to descend along the trigger lifting groove 21, and the limit block 34 retracts downward into the retraction groove 31. Simultaneously, the pressed-down pressure block 29 resets upward under the action of the spring 28, and the entire anti-slip blocking mechanism automatically returns to its initial standby state, ready to respond to any possible slippage.

[0063] Example 2

[0064] like Figures 1-5 As shown, a method of the present invention applied to a post-forging heat treatment apparatus for high-performance large ring blanks includes the following steps:

[0065] Step 1: Place the support frame 12 on the support rod 18, so that the displacement part is pressed by the support frame 12, and the unpressed part is in the gap of the support frame 12; the lifting frame 8 is located in the initial position, and the follow-up feeding mechanism is located in the waiting position in the support seat 13;

[0066] Step 2: Drive the lifting frame 8 to move towards the bearing seat 13. The first side rack 23 on the lifting frame 8 drives the first drive tooth 11 to rotate. The first drive tooth 11 drives the second drive tooth 25 to rotate synchronously through the mounting shaft 10. The second drive tooth 25 meshes with and drives the second side rack 24 and the connecting rod 22, pushing the bearing plate 16 to slide along the inlet and outlet track 15 towards the lifting frame 8, realizing follow-up feeding and reducing the moving distance of the lifting frame 8.

[0067] Step 3: The lifting frame 8 lifts the bearing frame 12 and the ring blank as a whole, completing the material removal of the ring blank. The lifting frame 8 carries the bearing frame 12 and the ring blank in the opposite direction. At the same time, the first side rack 23 drives the first drive tooth 11 and the second drive tooth 25 in the opposite direction, so that the second side rack 24 and the bearing plate 16 move in the opposite direction relative to the lifting frame 8, and gradually reset to the waiting position in the bearing seat 13.

[0068] Step 4: In step 2, if the support frame 12 slides forward unexpectedly relative to the support rod 18, the support frame 12 pushes the displacement block 27 to move along the displacement groove 32, which in turn moves the trigger block 33. The trigger inclined groove 30 in the trigger block 33 forces the trigger pin 20 to rise along the trigger lifting groove 21, thereby driving the limit block 34 to push upward out of the retraction groove 31, forming a mechanical block on the front end of the support frame 12 and preventing the sliding from continuing to expand.

[0069] Step 5: The lifting frame 8 moves above the lowering port 3, and the lifting component 7 drives the lifting frame 8 to descend, placing the ring blank and workpiece bearing assembly into the quenching tank for post-forging heat treatment.

[0070] In summary, this invention, by setting up a follow-up feeding mechanism, enables the lifting frame 8 and the bearing plate 16 to move towards each other, significantly shortening the insertion stroke and improving material handling efficiency. Simultaneously, utilizing the characteristic that the first side rack 23 and the first drive tooth 11 are always engaged during the lifting process, synchronous reset of the bearing plate 16 is achieved without the need for an additional power source. Furthermore, the anti-slip blocking mechanism utilizes the sliding of the bearing frame 12 to push the displacement block 27 and the trigger block 33. Through the engagement of the trigger groove 30 and the inclined surface of the trigger column 20, the limiting block 34 is automatically pushed out of the retraction groove 31, forming a reliable mechanical block that effectively prevents excessive slippage of the bearing frame 12, ensuring the safety of the equipment and operators. The various mechanisms work collaboratively and reliably, and all adopt a purely mechanical structure, requiring no electrical control, resulting in rapid response and low cost. Therefore, this invention significantly improves operational safety while enhancing post-forging heat treatment efficiency, possessing high practical value and promising prospects for widespread application.

[0071] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, such designs should fall within the protection scope of the present invention.

[0072] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A forging heat treatment apparatus for high-performance large ring blanks, comprising two transverse tracks (2) disposed in the working environment, and a lifting assembly movable along the transverse tracks (2), the lifting assembly comprising a base (1), a lifting member (7), and a lifting frame (8) driven by the lifting member (7); characterized in that, Also includes: The workpiece bearing assembly for carrying ring blanks includes a bearing seat (13), a follow-up feeding mechanism and an anti-slip shielding mechanism. The bearing seat (13) is located on the side of the transverse track (2). The follow-up feeding mechanism is slidably installed in the bearing seat (13). When the lifting frame (8) moves toward the follow-up feeding mechanism for insertion, the follow-up feeding mechanism moves toward the lifting frame (8). When the lifting frame (8) resets, the follow-up feeding mechanism is driven to reset synchronously. The follow-up feeding mechanism specifically includes several inlet and outlet tracks (15) set inside the bearing seat (13), and a bearing plate (16) slidably set on the inlet and outlet tracks (15). Multiple evenly arranged bearing columns (17) are installed on the bearing plate (16), and a bearing rod (18) is installed above the same column of bearing columns (17), and a bearing frame (12) is placed on the upper end of the multiple bearing rods (18). The anti-slip shielding mechanism is located on the top of the support rod (18). The anti-slip shielding mechanism specifically includes a displacement part and a trigger limiting part. The displacement part and the trigger limiting part are respectively located at both ends inside the support rod (18), and the displacement part is located at the end away from the lifting frame (8). When the follow-up feeding mechanism is displaced during the feeding process, it can be triggered and push the trigger limiting part upward to prevent the support frame (12) from continuing to displace.

2. The post-forging heat treatment apparatus for high-performance large ring blanks according to claim 1, characterized in that, The working environment is also provided with a quenching tank between the two transverse tracks (2). The lifting assembly also includes a lowering port (3) opened inside the base (1). The lowering port (3) is used to allow the lifting frame (8) below the lifting component (7) to enter the quenching tank for quenching treatment.

3. The post-forging heat treatment apparatus for high-performance large ring blanks according to claim 2, characterized in that, The base (1) is provided with pushers (4) on both sides, and a mounting bracket (19) is installed on the pushers (4). A vertical plate (6) is connected inside the mounting bracket (19), and a lifting member (7) is installed inside the vertical plate (6). The power output end of the lifting member (7) is connected to a mounting plate (5), and a lifting frame (8) is installed on the mounting plate (5).

4. The post-forging heat treatment apparatus for high-performance large ring blanks according to claim 3, characterized in that, The inner side of the bearing seat (13) is also provided with an installation groove (9). An installation shaft (10) is installed in the installation groove (9) near the side of the lifting frame (8). The first drive tooth (11) and the second drive tooth (25) are installed sequentially from top to bottom on the outer side of the installation shaft (10). One end of the connecting rod (22) is connected to the side of the bearing plate (16) near the installation groove (9). The other end of the connecting rod (22) is connected to a second side rack (24) that meshes with the second drive tooth (25). The lifting frame (8) is provided with a first side rack (23) on its side, and the first side rack (23) is engaged with the outside of the first drive tooth (11).

5. The post-forging heat treatment apparatus for high-performance large ring blanks according to claim 4, characterized in that, When the bearing frame (12) is placed above the bearing rod (18), it applies pressure to part of the displacement portion. The displacement portion that is not pressured is located in the gap inside the bearing frame (12). When the bearing frame (12) is displaced, the displacement portion that is not pressured is pushed by the bearing frame (12) and drives the trigger limiting part to move. The trigger limiting part simultaneously blocks the front end of the bearing frame (12).

6. The post-forging heat treatment apparatus for high-performance large ring blanks according to claim 5, characterized in that, The displacement part specifically includes a displacement groove (32), a displacement block (27), multiple grooves opened on the displacement block (27), and a spring (28) installed inside a single groove. A pressure block (29) is also slidably connected inside the single groove, and the lower end of the pressure block (29) is in contact with the spring (28). The displacement groove (32) is formed inside the bearing rod (18), and the displacement block (27) is slidably disposed inside the displacement groove (32); The bearing rod (18) also has a through cavity inside, and a connecting column (26) is inserted into the cavity. The two ends of the connecting column (26) are respectively connected to the side of the displacement block (27) and the trigger limiting part.

7. The post-forging heat treatment apparatus for high-performance large ring blanks according to claim 6, characterized in that, The trigger limiting part specifically includes a retraction groove (31) and a trigger block (33). The retraction groove (31) is opened inside the bearing rod (18) at one end away from the displacement groove (32). The trigger block (33) is slidably installed inside the retraction groove (31), and one end of the connecting column (26) is connected to the outside of the trigger block (33). The trigger block (33) has a trigger inclined groove (30) that slopes from bottom to top inside. The trigger groove (30) is fitted with a trigger post (20), and the retraction groove (31) is symmetrically provided with a trigger lifting groove (21) corresponding to the position of the trigger post (20), and the two ends of the trigger post (20) are slidably installed inside the trigger lifting groove (21); A limit block (34) is also installed on the outside of the trigger post (20).

8. The post-forging heat treatment apparatus for high-performance large ring blanks according to claim 7, characterized in that, The end of the connecting column (26) connected to the displacement block (27) is also fitted with a reset spring (35), and the reset spring (35) abuts against the displacement groove (32) and the side of the displacement block (27).

9. A post-forging heat treatment apparatus for high-performance large ring blanks according to claim 8, characterized in that, The inner sides of the bearing seat (13) are also equipped with shielding blocks (14) located on the outer side of the inlet and outlet track (15), and the height of the shielding blocks (14) is level with the upper surface of the bearing plate (16).

10. A method applied to the post-forging heat treatment apparatus for high-performance large ring blanks as described in claim 9, characterized in that, Includes the following steps: Step 1: Place the support frame (12) on the support rod (18) so that the displacement part is pressed by the support frame (12) and the unpressed part is in the gap of the support frame (12); the lifting frame (8) is located at the initial position and the follow-up feeding mechanism is located in the waiting position in the support seat (13); Step 2: Drive the lifting frame (8) to move towards the bearing seat (13). The first side rack (23) on the lifting frame (8) drives the first drive tooth (11) to rotate. The first drive tooth (11) drives the second drive tooth (25) to rotate synchronously through the mounting shaft (10). The second drive tooth (25) meshes with and drives the second side rack (24) and the connecting rod (22), pushing the bearing plate (16) to slide along the inlet and outlet track (15) towards the lifting frame (8), realizing follow-up feeding and reducing the moving distance of the lifting frame (8). Step 3: The lifting frame (8) lifts the bearing frame (12) and the ring blank as a whole, and completes the picking of the ring blank. The lifting frame (8) carries the bearing frame (12) and the ring blank in the opposite direction. At the same time, the first side rack (23) drives the first drive tooth (11) and the second drive tooth (25) in the opposite direction, so that the second side rack (24) and the bearing plate (16) move in the opposite direction relative to the lifting frame (8) and gradually reset to the waiting position in the bearing seat (13). Step 4: In step 2, if the support frame (12) slides forward unexpectedly relative to the support rod (18), the support frame (12) pushes the displacement block (27) to move along the displacement groove (32), which in turn moves the trigger block (33). The trigger groove (30) in the trigger block (33) forces the trigger pin (20) to rise along the trigger lifting groove (21), thereby causing the limit block (34) to push upward out of the retraction groove (31), forming a mechanical block on the front end of the support frame (12) and preventing the sliding from continuing to expand. Step 5: The lifting frame (8) is moved above the lowering port (3), and the lifting component (7) drives the lifting frame (8) to descend, placing the ring blank and workpiece bearing assembly into the quenching tank for post-forging heat treatment.

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