A stress relief device and method for high-strength alloy materials

Abstract

This invention discloses a stress-relieving device and method for high-strength alloy materials, belonging to the technical field of stress-relieving equipment. It includes: a base, a heat treatment chamber mounted on one side of the top of the base, a door on one side of the heat treatment chamber, a loading and unloading assembly between the base and the door, a bearing box installed through the bottom of the door, bearing plates at both ends of the top of the bearing box, a rotating assembly for rotating the bearing plates on the bearing box, and a column installed at the center of the top of the bearing plates. The device achieves a composite motion of "rotation + revolution + cross plate rotation" during the heat treatment process through three-stage rotational coordination. This dynamic adjustment can change the spatial position of the spring within the heat treatment chamber in real time, effectively offsetting the effects of uneven temperature distribution within the furnace and ensuring uniform heating of all parts of the spring.

Description

Technical Field

[0001] This invention relates to a stress relief device and method for high-strength alloy materials, belonging to the technical field of stress relief equipment. Background Technology

[0002] High-strength alloy springs are key components in machinery, automotive, and aerospace industries. Their manufacturing process involves multiple steps, including rolling, forging, welding, and cold working. During these steps, the material is prone to internal stress due to factors such as plastic deformation, temperature gradient changes, and microstructure transformation. The presence of internal stress can lead to problems such as dimensional instability and decreased mechanical properties (e.g., reduced fatigue strength and toughness) during use. In severe cases, it can cause sudden fracture, resulting in equipment failure or even safety accidents. Therefore, eliminating internal stress through heat treatment is a core step in ensuring the performance and lifespan of high-strength alloy springs.

[0003] In existing technologies, stress relief treatment of high-strength alloy springs often employs static heat treatment: the spring is fixed in a heat treatment furnace using tools such as hangers and trays, maintaining a static state during heating, holding, and cooling (e.g., the nickel-titanium alloy spring heat treatment equipment disclosed in patent CN118726732B). However, this static treatment method has significant drawbacks. The temperature distribution within the heat treatment furnace is difficult to achieve perfectly uniformity due to factors such as the distribution of heating elements, furnace structure, and airflow disturbances, resulting in localized temperature differences. The statically placed spring cannot balance the effects of these temperature differences through position adjustments, leading to inconsistent stress relief in different areas, creating "regional differences." These differences cause uneven microstructure and properties (such as grain size and hardness) in different parts of the spring, further exacerbating dimensional instability and the risk of fatigue failure. This is especially true for high-strength alloy springs (such as titanium alloy and high-temperature alloy springs), where the requirements for heat treatment uniformity are even higher, making the limitations of static treatment even more pronounced. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a stress relief device and method for high-strength alloy materials.

[0005] The technical solution adopted by this invention to solve its technical problem is: A stress-relieving device and method for high-strength alloy materials includes: a base, a heat treatment chamber mounted on one side of the top of the base, a door on one side of the heat treatment chamber, a loading and unloading assembly between the base and the door, a bearing box installed through the bottom of the door, bearing plates at both ends of the top of the bearing box, a first rotating assembly for rotating the bearing plates on the bearing box, a column mounted at the middle of the top of the bearing plates, three cross plates on the outer side of the column, a second rotating assembly for rotating the cross plates on the column, a clamping rotating mechanism for clamping the workpiece on the cross plates, the clamping rotating mechanism including a third rotating assembly for rotating the workpiece, and a PLC controller on the heat treatment chamber.

[0006] Preferably, the loading and unloading assembly includes a bottom groove, which is located on the top of the base away from the heat treatment chamber. A screw is rotatably installed in the bottom groove, and the outer side of the screw is connected to the output end of motor one. A threaded seat is provided on the outer side wall of the screw through threads, and motor two is installed in the threaded seat. The output end of motor two is fixedly installed at the middle of the bottom of the chamber door.

[0007] Preferably, the top of the threaded seat and the bottom of the door are provided with grooves, and a number of balls are placed in the groove at the top of the threaded seat.

[0008] Preferably, the rotating assembly includes two vertical shafts, the tops of which are fixedly installed at the bottom centers of the two bearing plates respectively. The vertical shafts and the bearing boxes are rotatably installed. The bottom of the vertical shafts passes through the bearing boxes and is equipped with synchronous pulleys. The two synchronous pulleys are driven by a synchronous belt. The bottom of one of the vertical shafts is connected to the output end of the motor.

[0009] Preferably, the rotating assembly two includes a top groove, which is formed at the top of the column. A motor four is installed inside the column. The output end of the motor four passes through the top groove and is equipped with a drive gear. Three long shafts are rotatably mounted on the top groove. One end of each long shaft passes through the top groove and is equipped with a driven gear that meshes with the drive gear. A U-shaped frame is installed at the other end of each long shaft. The U-shaped frame and one end of the cross plate are fixedly installed at the middle.

[0010] Preferably, the clamping and rotating mechanism includes four through slots, which are respectively opened around the perimeter of the cross plate. A lead screw is rotatably installed in each through slot. A movable plate is provided on the outer side wall of the lead screw through a thread. Fixed plates are installed around the perimeter of the cross plate at the end away from the U-shaped frame. The rotating assembly three is disposed between the movable plate and the fixed plate. A circular groove is opened in the middle of the cross plate at the end away from the U-shaped frame. One end of the lead screw passes through the circular groove and is equipped with a driven bevel gear. A motor five is installed on the U-shaped frame. The output end of the motor five passes through the circular groove and is equipped with an active bevel gear that meshes with the driven bevel gear.

[0011] Preferably, the rotating assembly three includes a turntable one, which is rotatably mounted on one side of the movable plate via a rotating shaft. A motor six is ​​mounted on one side of the fixed plate, and the output end of the motor six is ​​connected to a turntable two. A plug rod is mounted on the side of the turntable one near the turntable two.

[0012] Preferably, in step one: the high-strength alloy spring is placed on the insert rod, and the high-strength alloy spring on the lower insert rod is supported by hand. Then, the motor is started to make the active bevel gear drive the driven bevel gear to rotate, thereby making the four lead screws rotate synchronously. The driven bevel gears with different rotation directions have opposite threads on the corresponding lead screw surfaces, which can make the four movable plates move closer or further away from each other, thereby making the movable plates closer to the fixed plate. The high-strength alloy spring is clamped between the movable plate and the fixed plate. The insert rod can prevent the high-strength alloy spring from shifting. After all the high-strength alloy springs are clamped, heat treatment can begin. Step Two: Start motor one to rotate the screw, which moves the threaded seat and causes the chamber door to move and contact the heat treatment chamber, sealing it. One side of the bearing box then enters the heat treatment chamber. Next, start the heat treatment chamber to heat the high-strength alloy spring. During the heating process, motor six drives turntable two to rotate, causing turntable one to rotate synchronously, which in turn causes the high-strength alloy spring to rotate. At the same time, motor three starts to drive the vertical shaft to rotate in both directions. Through the transmission of the synchronous pulley and synchronous belt, the two vertical shafts drive the two bearing plates to rotate in both directions, thereby causing the column to rotate in both directions. This, in turn, causes the three cross plates to rotate in both directions, changing the position of the spring. Simultaneously, motor four drives the drive gear to rotate in both directions, causing the driven gear to drive the long shaft to rotate in both directions, causing the cross plates to rotate, further changing the position of the high-strength alloy spring. By dynamically adjusting the position of the high-strength alloy spring, the negative impact of uneven temperature distribution in the furnace is offset, improving the heat treatment effect. Step 3: After the heat treatment and heat preservation are completed, Motor 1 drives the screw to rotate in the opposite direction, moving the chamber door away from the heat treatment chamber. After one side of the carrier box leaves the heat treatment chamber, Motor 2 drives the chamber door to rotate 180 degrees, so that the other side of the carrier box faces the heat treatment chamber. The high-strength alloy spring to be heat-treated on the other side of the carrier box can then be sent into the heat treatment chamber for further heat treatment. The high-strength alloy spring that has been rotated out continues to rotate. The high-strength alloy spring generates relative motion with the air, which accelerates the heat dissipation speed and improves the uniformity of heat dissipation.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The equipment utilizes a three-stage rotational coordination (rotation component three drives the workpiece to rotate, rotation component two drives the cross plate to rotate, and rotation component one drives the bearing plate to revolve), enabling the high-strength alloy spring to achieve a composite motion of "rotation + revolution + cross plate rotation" during heat treatment. This dynamic adjustment can change the spatial position of the spring within the heat treatment chamber in real time, effectively offsetting the effects of uneven temperature distribution within the furnace, ensuring uniform heating of all parts of the spring, consistent stress relief, significantly improving the heat treatment effect, and avoiding performance defects caused by "regional differences."

[0014] 2. The loading and unloading assembly (motor 1, screw, threaded seat, and motor 2) can drive the chamber door and the carrier box to complete translation and 180° rotation. After the springs on one side of the carrier plate have completed heat treatment, the chamber door drives the carrier box to move out of the heat treatment chamber and rotate, sending the springs to be treated on the other side into the furnace. At the same time, the treated springs continue to rotate and dissipate heat on the outside. This design eliminates the need to stop the machine for loading and unloading, allowing the heat treatment and loading / unloading processes to proceed in parallel, improving work efficiency. After the heat-treated springs are removed from the heat treatment chamber, they continue to rotate via the rotating assembly 3, while simultaneously revolving with the carrier plate. This continuous rotation creates relative motion between the spring surface and the air, accelerating the heat exchange rate. Simultaneously, the contact between all parts of the spring and the air is uniform during rotation, avoiding uneven cooling caused by localized accumulation during static cooling, further reducing secondary stress generated during the cooling stage. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a schematic diagram of the loading and unloading assembly structure of the present invention; Figure 3 This is a schematic diagram of the rotating assembly of the present invention; Figure 4 This is a schematic diagram of the rotating component two of the present invention; Figure 5 This is a schematic diagram of the clamping and rotating mechanism of the present invention; Figure 6 This is a schematic diagram of the clamping and rotating mechanism of the present invention.

[0017] In the diagram: 1. Base; 2. Heat treatment chamber; 3. Chamber door; 4. Loading / unloading assembly; 5. Carrier box; 6. Carrier plate; 7. Rotating assembly one; 8. Column; 9. Cross plate; 10. Rotating assembly two; 11. Clamping and rotating mechanism; 12. PLC controller; 401. Bottom groove; 402. Screw; 403. Motor one; 404. Threaded seat; 405. Motor two; 406. Groove; 407. Ball bearing; 701. Vertical shaft; 702. Synchronous pulley; 703. Synchronous belt; 704. Motor 3; 101. Top slot; 102. Motor 4; 103. Drive gear; 104. Long shaft; 105. Driven gear; 106. U-shaped frame; 111. Through slot; 112. Lead screw; 113. Movable plate; 114. Fixed plate; 115. Rotating assembly 3; 116. Circular slot; 117. Driven bevel gear; 118. Motor 5; 119. Driven bevel gear; 1151. Turntable 1; 1152. Motor 6; 1153. Turntable 2; 1154. Insert rod. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-6 The present invention provides a technical solution: A stress-relieving device and method for high-strength alloy materials includes: a base 1, a heat treatment chamber 2 installed on one side of the top of the base 1, a door 3 on one side of the heat treatment chamber 2, a loading and unloading assembly 4 between the base 1 and the door 3, a bearing box 5 installed through the bottom of the door 3, bearing plates 6 at both ends of the top of the bearing box 5, a rotating assembly 7 for rotating the bearing plates 6 on the bearing box 5, a column 8 installed at the middle of the top of the bearing plates 6, three cross plates 9 on the outer side of the column 8, a rotating assembly 10 for rotating the cross plates 9 on the column 8, a clamping rotating mechanism 11 for clamping the workpiece on the cross plates 9, the clamping rotating mechanism 11 including a rotating assembly 115 for rotating the workpiece, and a PLC controller 12 on the heat treatment chamber 2.

[0020] Furthermore, the motors (motors three, four, five, and six) entering the heat treatment chamber are all designed to withstand high temperatures and are equipped with external heat insulation covers. The motor windings use insulation materials with a temperature resistance rating of ≥200℃ (such as polyimide film) to prevent insulation failure at high temperatures. The motor bearings use high-temperature grease (such as molybdenum disulfide-based grease) to ensure good lubrication in high-temperature environments and reduce wear. The motor housing is made of high-temperature resistant alloy (such as 310S stainless steel) to withstand the heating temperature inside the furnace (usually ≤600℃) and prevent the housing from deforming or oxidizing.

[0021] In this embodiment: the loading and unloading assembly 4 includes a bottom groove 401, which is located on the top of the base 1 away from the heat treatment box 2. A screw 402 is rotatably installed in the bottom groove 401. The outer side of the screw 402 is connected to the output end of the first motor 403. A threaded seat 404 is provided on the outer side wall of the screw 402 through threads. A second motor 405 is installed in the threaded seat 404. The output end of the second motor 405 is fixedly installed at the middle of the bottom of the box door 3.

[0022] Furthermore, in the loading and unloading assembly, the threaded connection between the screw and the threaded seat adopts a trapezoidal thread design. Compared with ordinary triangular threads, trapezoidal threads have the characteristics of high transmission efficiency and strong load-bearing capacity. They can stably drive the threaded seat and the box door to move horizontally when the motor is driven, avoiding thread jamming due to excessive load (such as the weight of the box and workpiece). At the same time, the inner wall of the bottom groove is provided with a guide groove, and the two sides of the threaded seat are provided with sliders that are adapted to the guide groove. The sliders slide within the guide groove, which can limit the rotation of the threaded seat with the screw during the translation process, ensuring that the threaded seat moves stably only in a straight line. This further ensures the sealing of the box door when it is connected to the heat treatment box, preventing heat leakage from the furnace from affecting the heat treatment effect.

[0023] In this embodiment: the top of the threaded seat 404 and the bottom of the door 3 are both provided with grooves 406, and a number of balls 407 are placed in the grooves 406 at the top of the threaded seat 404.

[0024] Furthermore, the design of the grooves and balls in the loading and unloading components is a key optimization detail. The grooves on the top of the threaded seat and the bottom of the door cooperate with each other, and several balls are placed in the groove on the top of the threaded seat, which converts the sliding friction between the door and the threaded seat into rolling friction. This design significantly reduces the friction between the two, making the rotation of the door driven by the motor smoother, reducing motor energy consumption and wear, while ensuring the stability of the door during rotation, avoiding jamming or positional deviation due to excessive frictional resistance, and ensuring that the door can accurately achieve 180-degree rotation, meeting the positional accuracy requirements for loading and unloading in continuous operation.

[0025] In this embodiment: the rotating assembly 7 includes two vertical shafts 701. The tops of the two vertical shafts 701 are fixedly installed at the bottom center of the two bearing plates 6 respectively. The vertical shafts 701 and the bearing box 5 are rotatably installed. The bottom of the vertical shafts 701 passes through the bearing box 5 and is equipped with synchronous pulleys 702. The two synchronous pulleys 702 are driven by a synchronous belt 703. The bottom of one vertical shaft 701 is connected to the output end of the motor 704.

[0026] Furthermore, the use of one motor can be reduced by using the timing belt 703 and timing pulley 702.

[0027] In this embodiment: the rotating assembly 2 10 includes a top groove 101, which is opened at the top of the column 8. A motor 4 102 is installed in the column 8. The output end of the motor 4 102 passes through the top groove 101 and is equipped with a drive gear 103. Three long shafts 104 are rotatably mounted on the top groove 101. One end of the long shaft 104 passes through the top groove 101 and is equipped with a driven gear 105 that meshes with the drive gear 103. A U-shaped frame 106 is installed at the other end of the long shaft 104. The U-shaped frame 106 and the cross plate 9 are fixedly installed at the middle of one end.

[0028] Furthermore, the three cross plates are evenly distributed at 120 degrees on the outside of the column. Their synchronous rotation allows the workpieces on each cross plate to obtain the same frequency and range of position changes in the heat treatment chamber, avoiding heating deviations caused by abnormal rotation of individual workpieces.

[0029] In this embodiment: the clamping and rotating mechanism 11 includes four through slots 111, which are respectively opened around the cross plate 9. A lead screw 112 is rotatably installed in the through slot 111. A movable plate 113 is provided on the outer side wall of the lead screw 112 through a thread. Fixed plates 114 are installed around the cross plate 9 at the end away from the U-shaped frame 106. The rotating assembly 115 is arranged between the movable plate 113 and the fixed plate 114. A circular groove 116 is opened in the middle of the end of the cross plate 9 away from the U-shaped frame 106. One end of the lead screw 112 passes through the circular groove 116 and is equipped with a driven bevel gear 117. A motor 118 is installed on the U-shaped frame 106. The output end of the motor 118 passes through the circular groove 116 and is equipped with an active bevel gear 119 that meshes with the driven bevel gear 117.

[0030] Furthermore, the rotation speed of the turntable two driven by motor six can be adjusted by a PLC controller, allowing the workpiece to rotate at a suitable speed to ensure uniform heating of all surfaces. In addition, turntable one is rotatably connected to the movable plate via a rotating shaft, allowing turntable one to adjust its position as the movable plate moves, adapting to the clamping and rotation requirements of workpieces of different lengths and improving the flexibility of the clamping and rotation mechanism.

[0031] In this embodiment: Rotating assembly three 115 includes turntable one 1151, turntable one 1151 is rotatably mounted on one side of movable plate 113 via a rotating shaft, motor six 1152 is mounted on one side of fixed plate 114, the output end of motor six 1152 is connected to turntable two 1153, and plug rod 1154 is mounted on the side of turntable one 1151 near turntable two 1153.

[0032] Furthermore, the insert is made of a high-temperature resistant alloy (such as nickel-chromium alloy), which can adapt to the high-temperature environment inside the heat treatment chamber and prevent the insert from deforming or failing due to excessive temperature.

[0033] In this implementation: Step 1: Place the high-strength alloy spring on the insert rod 1154. Support the high-strength alloy spring on the lower insert rod 1154 by hand. Then start the motor 118 to make the active bevel gear 119 drive the driven bevel gear 117 to rotate, thereby making the four lead screws 112 rotate synchronously. The driven bevel gears 117 with different rotation directions have opposite threads on the surface of the corresponding lead screws 112, so that the four movable plates 113 can move closer or further away from each other, thereby making the movable plates 113 closer to the fixed plate 114, and clamping the high-strength alloy spring between the movable plate 113 and the fixed plate 114. The insert rod 1154 can prevent the high-strength alloy spring from shifting. After all the high-strength alloy springs are clamped, heat treatment can begin. Step Two: Start motor 403 to rotate screw 402, causing threaded seat 404 to move, thus moving chamber door 3 to contact heat treatment chamber 2 and seal it. One side of bearing box 5 then enters heat treatment chamber 2. Then, heat treatment chamber 2 is started to heat the high-strength alloy spring. During heating, motor 1152 drives turntable 1153 to rotate, causing turntable 1151 to rotate synchronously, thus rotating the high-strength alloy spring. Simultaneously, motor 704 starts to drive vertical shaft 701 to rotate in both directions, via synchronous pulley 70... The transmission of the 2 and the synchronous belt 703 causes the two vertical shafts 701 to drive the two bearing plates 6 to rotate in both directions, thereby causing the column 8 to rotate in both directions, which in turn drives the three cross plates 9 to revolve in both directions, changing the position of the spring. At the same time, the motor 102 drives the drive gear 103 to rotate in both directions, causing the driven gear 105 to drive the long shaft 104 to rotate in both directions, causing the cross plates 9 to rotate, further changing the position of the high-strength alloy spring. By dynamically adjusting the position of the high-strength alloy spring, the negative impact of uneven temperature distribution in the furnace is offset, and the heat treatment effect is improved. Step 3: After the heat treatment and heat preservation are completed, motor 403 drives screw 402 to rotate in the opposite direction, so that the door 3 moves away from the heat treatment box 2. After one side of the carrier box 5 moves away from the heat treatment box 2, motor 405 drives the door 3 to rotate 180 degrees, so that the other side of the carrier box 5 faces the heat treatment box 2. The high-strength alloy spring to be heat treated on the other side of the carrier box 5 can then be sent into the heat treatment box 2 for further heat treatment. The high-strength alloy spring that has been rotated out continues to rotate. The high-strength alloy spring generates relative motion with the air, which accelerates the heat dissipation speed and improves the uniformity of heat dissipation.

[0034] The workflow of this embodiment is as follows: Step 1: Place the high-strength alloy spring on the insert rod 1154. Support the high-strength alloy spring on the lower insert rod 1154 by hand. Then start the motor 118 to make the active bevel gear 119 drive the driven bevel gear 117 to rotate, thereby making the four lead screws 112 rotate synchronously. The driven bevel gears 117 with different rotation directions have opposite threads on the surface of the corresponding lead screws 112, so that the four movable plates 113 can move closer or further away from each other, thereby making the movable plates 113 closer to the fixed plate 114, and clamping the high-strength alloy spring between the movable plate 113 and the fixed plate 114. The insert rod 1154 can prevent the high-strength alloy spring from shifting. After all the high-strength alloy springs are clamped, heat treatment can begin. Step Two: Start motor 403 to rotate screw 402, causing threaded seat 404 to move, thus moving chamber door 3 to contact heat treatment chamber 2 and seal it. One side of bearing box 5 then enters heat treatment chamber 2. Then, heat treatment chamber 2 is started to heat the high-strength alloy spring. During heating, motor 1152 drives turntable 1153 to rotate, causing turntable 1151 to rotate synchronously, thus rotating the high-strength alloy spring. Simultaneously, motor 704 starts to drive vertical shaft 701 to rotate in both directions, via synchronous pulley 70... The transmission of the 2 and the synchronous belt 703 causes the two vertical shafts 701 to drive the two bearing plates 6 to rotate in both directions, thereby causing the column 8 to rotate in both directions, which in turn drives the three cross plates 9 to revolve in both directions, changing the position of the spring. At the same time, the motor 102 drives the drive gear 103 to rotate in both directions, causing the driven gear 105 to drive the long shaft 104 to rotate in both directions, causing the cross plates 9 to rotate, further changing the position of the high-strength alloy spring. By dynamically adjusting the position of the high-strength alloy spring, the negative impact of uneven temperature distribution in the furnace is offset, and the heat treatment effect is improved. Step 3: After the heat treatment is completed, motor 403 drives screw 402 to rotate in the opposite direction, so that the door 3 moves away from the heat treatment box 2. After one side of the carrier box 5 moves away from the heat treatment box 2, motor 405 drives the door 3 to rotate 180 degrees, so that the other side of the carrier box 5 faces the heat treatment box 2. The high-strength alloy spring to be heat treated on the other side of the carrier box 5 can then be sent into the heat treatment box 2 for further heat treatment. The high-strength alloy spring that has been rotated out continues to rotate. The high-strength alloy spring generates relative motion with the air, which accelerates the heat dissipation speed and improves the uniformity of heat dissipation.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stress-relieving device for high-strength alloy materials, characterized in that, include: The base has a heat treatment chamber mounted on one side of its top. A door is located on one side of the heat treatment chamber. A loading / unloading assembly is located between the base and the door. A carrying box is installed through the bottom of the door. Carrying plates are located at both ends of the top of the carrying box. A rotating assembly (I) is located on the carrying box to rotate the carrying plates. A column is mounted at the center of the top of the carrying plates. Three cross plates are located on the outer side of the column. A rotating assembly (II) is located on the column to rotate the cross plates. A clamping and rotating mechanism for holding the workpiece is located on the cross plates. The clamping and rotating mechanism includes a rotating assembly (III) that causes the workpiece to rotate. A PLC controller is located on the heat treatment chamber.

2. The stress relief equipment for high-strength alloy materials according to claim 1, characterized in that, The loading and unloading assembly includes a bottom groove, which is located on the top of the base away from the heat treatment chamber. A screw is rotatably installed in the bottom groove. The outer side of the screw is connected to the output end of motor one. A threaded seat is provided on the outer side wall of the screw through threads. Motor two is installed in the threaded seat. The output end of motor two is fixedly installed at the middle of the bottom of the chamber door.

3. The stress relief equipment for high-strength alloy materials according to claim 2, characterized in that, The top of the threaded seat and the bottom of the door are both provided with grooves, and several balls are placed in the groove at the top of the threaded seat.

4. The stress relief equipment for high-strength alloy materials according to claim 1, characterized in that, The rotating assembly includes two vertical shafts. The tops of the two vertical shafts are fixedly installed at the bottom centers of the two bearing plates, respectively. The vertical shafts and the bearing boxes are rotatably installed. The bottom of the vertical shafts passes through the bearing boxes and is equipped with synchronous pulleys. The two synchronous pulleys are driven by a synchronous belt. The bottom of one of the vertical shafts is connected to the output end of the motor.

5. The stress relief equipment for high-strength alloy materials according to claim 1, characterized in that, The rotating assembly two includes a top groove, which is opened at the top of the column. A motor four is installed inside the column. The output end of the motor four passes through the top groove and is equipped with a drive gear. Three long shafts are rotatably mounted on the top groove. One end of each long shaft passes through the top groove and is equipped with a driven gear that meshes with the drive gear. A U-shaped frame is installed at the other end of the long shaft. The U-shaped frame and the cross plate are fixedly installed at the middle of one end.

6. The stress relief equipment for high-strength alloy materials according to claim 5, characterized in that, The clamping and rotating mechanism includes four through slots, which are respectively opened around the perimeter of the cross plate. A lead screw is rotatably installed in each through slot. A movable plate is provided on the outer side wall of the lead screw through a thread. Fixed plates are installed around the perimeter of the cross plate at the end away from the U-shaped frame. The rotating assembly three is arranged between the movable plate and the fixed plate. A circular groove is opened in the middle of the cross plate at the end away from the U-shaped frame. One end of the lead screw passes through the circular groove and is equipped with a driven bevel gear. A motor five is installed on the U-shaped frame. The output end of the motor five passes through the circular groove and is equipped with an active bevel gear that meshes with the driven bevel gear.

7. The stress relief equipment for high-strength alloy materials according to claim 5, characterized in that, The rotating assembly three includes a turntable one, which is rotatably mounted on one side of the movable plate via a rotating shaft. A motor six is ​​mounted on one side of the fixed plate, and the output end of the motor six is ​​connected to a turntable two. A plug rod is mounted on the side of the turntable one near the turntable two.

8. A method for stress relief treatment of high-strength alloy materials according to any one of claims 1-7, characterized in that, Step 1: Place the high-strength alloy spring onto the insert rod, support the high-strength alloy spring on the lower insert rod by hand, and then start the motor to make the active bevel gear drive the driven bevel gear to rotate, thereby making the four lead screws rotate synchronously. The driven bevel gears with different rotation directions have opposite threads on the corresponding lead screw surfaces, which can make the four movable plates move closer or further away from each other, thereby bringing the movable plates closer to the fixed plate and clamping the high-strength alloy spring between the movable plate and the fixed plate. The insert rod can prevent the high-strength alloy spring from shifting. After all the high-strength alloy springs are clamped, heat treatment can begin. Step Two: Start motor one to rotate the screw, which moves the threaded seat and causes the chamber door to move and contact the heat treatment chamber, sealing it. One side of the bearing box then enters the heat treatment chamber. Next, start the heat treatment chamber to heat the high-strength alloy spring. During the heating process, motor six drives turntable two to rotate, causing turntable one to rotate synchronously, which in turn causes the high-strength alloy spring to rotate. At the same time, motor three starts to drive the vertical shaft to rotate in both directions. Through the transmission of the synchronous pulley and synchronous belt, the two vertical shafts drive the two bearing plates to rotate in both directions, thereby causing the column to rotate in both directions. This, in turn, causes the three cross plates to rotate in both directions, changing the position of the spring. Simultaneously, motor four drives the drive gear to rotate in both directions, causing the driven gear to drive the long shaft to rotate in both directions, causing the cross plates to rotate, further changing the position of the high-strength alloy spring. By dynamically adjusting the position of the high-strength alloy spring, the negative impact of uneven temperature distribution in the furnace is offset, improving the heat treatment effect. Step 3: After the heat treatment and heat preservation are completed, Motor 1 drives the screw to rotate in the opposite direction, moving the chamber door away from the heat treatment chamber. After one side of the carrier box leaves the heat treatment chamber, Motor 2 drives the chamber door to rotate 180 degrees, so that the other side of the carrier box faces the heat treatment chamber. The high-strength alloy spring to be heat-treated on the other side of the carrier box can then be sent into the heat treatment chamber for further heat treatment. The high-strength alloy spring that has been rotated out continues to rotate. The high-strength alloy spring generates relative motion with the air, which accelerates the heat dissipation speed and improves the uniformity of heat dissipation.

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