Auxiliary frame shape righting equipment

Abstract

The utility model discloses auxiliary frame shape righting equipment, and belongs to the technical field of auxiliary frame blank shape righting. The auxiliary frame shape righting equipment comprises a rack, a first oil cylinder, a movable plate, an upper electric cylinder, a lower electric cylinder and a pressing oil cylinder. The rack is used for supporting the first oil cylinder, the movable plate, the upper electric cylinder, the lower electric cylinder and the pressing oil cylinder; the first oil cylinder is used for driving the movable plate to move in the vertical direction; the moving plate is used for driving the upper electric cylinder to move; the upper electric cylinder is used for applying a vertically downward correcting force to the auxiliary frame; the lower electric cylinder is used for applying vertically upward correction force to the auxiliary frame; and the pressing oil cylinder is used for fixing the auxiliary frame. According to the auxiliary frame shape righting equipment, automation of auxiliary frame shape righting is achieved, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary frame blank correction, in particular to an auxiliary frame correction device. Background Art

[0002] The subframe is a crucial chassis component on a vehicle. With the advancement of lightweighting technology, the primary process currently used is low-pressure casting, using aluminum alloy as the material. During production, these cast subframes often experience some thermal deformation, which worsens after heat treatment. Therefore, a device is urgently needed to correct the subframe's shape. Summary of the Invention

[0003] The present invention provides a subframe correction device to solve the above problems. The technical solution is as follows:

[0004] In one aspect, a sub-frame correction device is provided, the sub-frame correction device comprising: a frame, a first oil cylinder, a movable plate, an upper electric cylinder, a lower electric cylinder and a pressing oil cylinder;

[0005] The frame is used to support the first oil cylinder, the movable plate, the upper electric cylinder, the lower electric cylinder and the pressing oil cylinder;

[0006] The first oil cylinder is used to drive the movable plate to move in the vertical direction;

[0007] The movable plate is used to drive the upper electric cylinder to move;

[0008] The upper electric cylinder is used to apply a vertical downward corrective force to the subframe;

[0009] The lower electric cylinder is used to apply a vertical upward corrective force to the sub-frame;

[0010] The clamping oil cylinder is used to fix the sub-frame.

[0011] In a possible embodiment, the upper electric cylinder includes a first electric cylinder and a second electric cylinder, and the first electric cylinder and the second electric cylinder are symmetrically distributed in the horizontal direction relative to the sub-frame; the lower electric cylinder includes a third electric cylinder and a fourth electric cylinder, and the third electric cylinder and the fourth electric cylinder are symmetrically distributed in the horizontal direction relative to the sub-frame.

[0012] In a possible implementation manner, the first electric cylinder and the third electric cylinder are symmetrically distributed relative to the sub-frame in the vertical direction; and the second electric cylinder and the fourth electric cylinder are symmetrically distributed relative to the sub-frame in the vertical direction.

[0013] In a possible embodiment, the sub-frame correction device also includes: a horizontal correction structure, which includes a fifth electric cylinder, a first guide rail and a first slide; the fifth electric cylinder is used to drive the first slide to move in a horizontal direction on the first guide rail; the first slide is used to apply a corrective force in a first direction to the first side of the sub-frame, and the first direction is the direction in which the first guide rail points to the sub-frame.

[0014] In a possible implementation manner, there are two horizontal correction structures, and the two horizontal correction structures are symmetrically distributed in the horizontal direction relative to the subframe.

[0015] In a possible embodiment, the horizontal correction structure also includes: a first cylinder and a first pin; the first cylinder is located on the first slide, and the first cylinder is used to drive the first pin to move to a first position, so that the first slide applies a corrective force in a first direction to the first side of the sub-frame through the first pin.

[0016] In a possible embodiment, the first cylinder is further used to drive the first pin shaft to move to a second position; when the first pin shaft moves to the second position, the first slide is further used to apply a corrective force in a second direction to the first side of the sub-frame through the first pin shaft, and the second direction is opposite to the first direction.

[0017] In a possible implementation manner, the subframe correction device further includes a sensor; the sensor is used to determine the position of the correction point of the subframe.

[0018] In one possible embodiment, the sub-frame orthopedic device further includes: a safety light grid and a safety protection net; the safety protection net is used to protect the operation of the sub-frame orthopedic device; the safety light grid is used to determine whether the operation of the sub-frame orthopedic device is interfered with, and if it is determined that the operation of the sub-frame orthopedic device is interfered with, perform interference response operations.

[0019] In a possible implementation, the subframe correction device further includes: a display; the display is used to control the operation of the subframe correction device based on an operation instruction; or to display the operating status of the subframe correction device.

[0020] The technical solution provided by the utility model brings at least the following beneficial effects:

[0021] The technical solution provided by the utility model realizes the automation of the sub-frame correction and improves the production efficiency. In addition, the upper and lower electric cylinders are provided to realize the upper and lower correction of the sub-frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0023] Figure 1 This is a front view of a subframe correction device proposed by the utility model;

[0024] Figure 2 This is a top view of a subframe correction device proposed by the present invention;

[0025] Figure 3 It is a left view of a sub-frame correction device proposed by the utility model.

[0026] Figure numerals: frame 1, first oil cylinder 2, movable plate 3, first electric cylinder 4, second electric cylinder 5, clamping oil cylinder 6, fifth electric cylinder 7, first guide rail 8, first slide 9, sixth electric cylinder 10, second guide rail 11, second slide 12, first pin 13, first cylinder 14, third electric cylinder 15, fourth electric cylinder 16, safety light grid 17, safety net 18, display 19, subframe 20. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of this application clearer, the present invention will be described in further detail below with reference to the accompanying drawings.

[0028] It should be noted that the terms "first," "second," and so forth (if any) in the description of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of utility models consistent with certain aspects of this application.

[0029] As a component of the automotive chassis system, the subframe not only bears the weight of key components like the engine and transmission, but also directly impacts the vehicle's handling stability, driving safety, and ride comfort. With the rapid development of the automotive industry, and particularly advancements in lightweighting technology, subframes manufactured from aluminum alloys via low-pressure casting have become the mainstream in the industry.

[0030] However, while low-pressure casting technology can efficiently produce complex, high-precision components, the thermal stresses generated during the casting process and the temperature fluctuations during subsequent heat treatments (such as solution treatment and aging) often cause varying degrees of thermal deformation in the subframe. This thermal deformation not only affects the appearance but, more importantly, can lead to problems such as improper assembly clearances and motion interference. In severe cases, subsequent precision machining (such as milling and drilling) cannot be completed accurately, thereby affecting the performance and safety of the entire vehicle.

[0031] The utility model provides a sub-frame correction device, which realizes the automation of sub-frame correction. Figure 1 , Figure 1 This is a front view of a sub-frame correction device provided by the utility model, and combined with Figure 2 A top view of the subframe orthopedic device is shown, and Figure 3 Left side view of the subframe orthopedic device shown.

[0032] The sub-frame correction device includes a frame 1, a first oil cylinder 2, a movable plate 3, an upper electric cylinder, a lower electric cylinder and a pressing oil cylinder 6; the frame 1 is used to support the first oil cylinder 2, the movable plate 3, the upper electric cylinder, the lower electric cylinder and the pressing oil cylinder 6; the first oil cylinder 2 is used to drive the movable plate 3 to move in the vertical direction; the movable plate 3 is used to drive the upper electric cylinder to move; the upper electric cylinder is used to apply a vertical downward correction force to the sub-frame 20; the lower electric cylinder is used to apply a vertical upward correction force to the sub-frame 20; the pressing oil cylinder 6 is used to fix the sub-frame 20.

[0033] The frame 1 is the supporting structure of the entire orthopedic device, ensuring the stability and precision of all working components. It can be constructed from sturdy metal materials, such as high-strength steel or cast iron, to withstand the significant forces and moments generated during the orthopedic procedure. The design of the frame 1 must consider the overall layout of the device, workspace requirements, and ease of maintenance and adjustment. It may include multiple support columns, beams, and connectors to ensure the rigidity and stability of the entire system.

[0034] The first cylinder 2 is one of the main power sources in the equipment, responsible for driving the vertical movement of the movable plate 3. The first cylinder 2 is a double-acting cylinder that can generate force in both directions. When the cylinder piston is pushed by hydraulic pressure, it causes the movable plate 3 to rise or fall. The movable plate 3 is the component that connects the first cylinder 2 and the upper electric cylinder. As the piston of the first cylinder 2 moves, it drives the upper electric cylinder to the desired position. The design of the movable plate 3 focuses on rigidity and stability to ensure that no additional deformation occurs during the correction process.

[0035] The upper electric cylinder applies a vertical downward corrective force to the subframe 20, helping to correct upward bending or deformation caused by casting or heat treatment. The upper electric cylinder can be a servo cylinder, which precisely controls force and displacement according to a pre-set program. When the cylinder piston is pushed, the force is transmitted to the subframe 20 through the corrective tool. The selection and design of the upper electric cylinder take into account the required corrective force, accuracy, and response speed.

[0036] In contrast to the upper cylinder, the lower cylinder applies a vertical, upward corrective force to the subframe 20. This helps correct downward bending or deformation of the subframe 20 caused by casting or heat treatment. The lower cylinder operates on a similar principle to the upper cylinder, but in the opposite direction. Similarly, force and displacement can be precisely controlled according to pre-set programs.

[0037] The clamping cylinder 6 is used to secure the subframe 20 during the correction process, preventing it from moving or rotating when subjected to the correction force. The clamping cylinder 6 can be a single-acting cylinder, generating force in only one direction. When the cylinder piston is pushed, the clamping device secures the subframe 20 to the equipment. The clamping cylinder 6 can be mounted on either the movable plate 3 or the frame 1.

[0038] Optionally, the correction process of the upper electric cylinder may include: the first cylinder 2 drives the movable plate 3 to a first position, which may be a predetermined position; the clamping cylinder 6 extends to clamp the subframe 20; and the upper electric cylinder extends to apply a vertical downward correction force to the subframe 20.

[0039] In one possible embodiment, the upper electric cylinder includes a first electric cylinder 4 and a second electric cylinder 5, which are symmetrically distributed in the horizontal direction relative to the sub-frame 20; the lower electric cylinder includes a third electric cylinder 15 and a fourth electric cylinder 16, which are symmetrically distributed in the horizontal direction relative to the sub-frame 20.

[0040] The upper electric cylinder consists of two cylinders: the first cylinder 4 and the second cylinder 5. These two cylinders are horizontally symmetrically distributed relative to the subframe 20. This symmetrical distribution ensures uniform application of the corrective force on the subframe 20, reducing distortion or deflection caused by uneven force distribution. For subframes 20 of varying shapes and sizes, this symmetrical distribution of the cylinders makes it easier to adjust the corrective strategy to suit varying correction needs. Similar to the upper electric cylinder, the lower electric cylinder consists of the third cylinder 15 and the fourth cylinder 16, which are horizontally symmetrically distributed relative to the subframe 20.

[0041] In one possible implementation, the first and third electric cylinders 4 and 15 are vertically symmetrically positioned relative to the subframe 20; the second and fourth electric cylinders 5 and 16 are also vertically symmetrical relative to the subframe 20. This symmetrical vertical distribution allows the upper and lower electric cylinders to work together to more quickly achieve the required corrective force. By pairing the upper and lower electric cylinders, vertical force can be applied to the same location on the workpiece.

[0042] In one possible embodiment, the subframe correction device also includes: a horizontal correction structure, the horizontal correction structure includes a fifth electric cylinder 7, a first guide rail 8 and a first slide 9; the fifth electric cylinder 7 is used to drive the first slide 9 to move in the horizontal direction on the first guide rail 8; the first slide 9 is used to apply a first direction correction force to the first side of the subframe 20, and the first direction is the direction in which the first guide rail 8 points to the subframe 20.

[0043] The fifth electric cylinder 7 is the power source in the horizontal correction structure, responsible for driving the first slide 9 to move on the first guide rail 8. The fifth electric cylinder 7 can accurately control the distance and speed of movement, as well as the force applied. The first guide rail 8 provides a stable and precise movement path for the first slide 9. It is a linear guide rail with high precision and wear resistance, which can ensure the stability and accuracy of the slide during movement. The first slide 9 is the actuator in the horizontal correction structure, and moves on the first guide rail 8 as pushed by the fifth electric cylinder 7. The slide may be equipped with corrective tools or fixtures for applying corrective force to the subframe 20.

[0044] When horizontal correction of the subframe 20 is required, the fifth electric cylinder 7 activates, pushing the first slide 9 along the first guide rail 8. The distance, speed, and force of movement can be precisely controlled according to a pre-set program. As the first slide 9 moves, the correction tool or fixture on it contacts the first side of the subframe 20 and applies a correction force directed in a first direction toward the subframe 20. The magnitude and direction of the force are determined based on the deformation of the subframe 20 and the correction required.

[0045] Under the action of the corrective force, the first side of the subframe 20 deforms accordingly to correct the original bend or twist. By precisely controlling the movement of the fifth electric cylinder 7 and the application of the corrective force, the horizontal deformation of the subframe 20 can be accurately corrected.

[0046] In a possible implementation, there are two horizontal correction structures, and the two horizontal correction structures are symmetrically distributed in the horizontal direction relative to the subframe 20 .

[0047] The two horizontal correction structures are symmetrically distributed in the horizontal direction relative to the subframe 20. The symmetrical distribution ensures that the correction force is synchronously corrected on the first side and the second side of the symmetrical subframe 20.

[0048] In a possible embodiment, the horizontal correction structure also includes: a first cylinder 14 and a first pin 13; the first cylinder 14 is located on the first slide 9, and the first cylinder 14 is used to drive the first pin 13 to move to the first position, so that the first slide 9 applies a first direction correction force to the first side of the subframe 20 through the first pin 13.

[0049] The first cylinder 14 is a power source in the horizontal correction structure and is located on the first slide 9. The cylinder has the characteristics of high precision and fast response, and can accurately control the distance, speed and force of movement. Under the action of the first cylinder 14, the first pin 13 connected to it can be driven to move. The first pin 13 is a key component connecting the first cylinder 14 and the correction tool (or clamp). One end is connected to the first cylinder 14, and the other end is connected to the correction tool (or clamp), or directly acts on the first side of the subframe 20. Through the push of the first cylinder 14, the first pin 13 can be moved to the preset first position, thereby achieving correction of the subframe 20.

[0050] In one possible embodiment, the first cylinder 14 is further used to drive the first pin 13 to move to the second position; when the first pin 13 moves to the second position, the first slide 9 is further used to apply a corrective force in a second direction to the first side of the subframe 20 through the first pin 13, where the second direction is opposite to the first direction.

[0051] The fifth electric cylinder 7 and the first guide rail 8 are securely mounted on the first end of the frame 1, forming a precise drive and guide system. The output of the fifth electric cylinder 7 is tightly connected to the first slide 9, which is flexibly mounted on the first guide rail 8. This allows the slide 9 to slide smoothly and precisely along the first guide rail 8, driven by the fifth electric cylinder 7. A first pneumatic cylinder 14 is mounted on the first slide 9, with a first pin 13 attached to its output end.

[0052] When thrust correction is required on a workpiece, the first pneumatic cylinder 14 first drives the first pin 13 forward until it reaches the preset first position. This ensures that the pin accurately engages the workpiece when thrust is applied. Next, the fifth electric cylinder 7 activates, driving the first slide 9 slowly toward the workpiece. As the slide moves, the front end of the first pin 13 firmly contacts the workpiece, and the power provided by the first slide 9 applies a stable thrust to the workpiece.

[0053] When the workpiece needs to be tensilely straightened, first, the fifth electric cylinder 7 will start, driving the first slide 9 to approach the workpiece, so that the first pin 13 reaches a preset position. This position enables the pin to accurately lock the matching position on the workpiece. Then, the first air cylinder 14 comes into play again, driving the first pin 13 to continue to extend until the first pin 13 reaches the second position. This allows the first pin 13 to lock the matching position on the workpiece, ensuring that the workpiece will not move or deflect during the subsequent tensile straightening process. Then, the fifth electric cylinder 7 starts again and performs a retraction stroke. As the first slide 9 retracts, the rear end of the first pin 13 will apply a stable pulling force to the workpiece.

[0054] For example, a sixth electric cylinder 10, a second slide 12, a second guide rail 11, a second air cylinder (not shown), and a second pin (not shown) are located at the second end, which is symmetrical to the first end. The second corresponding horizontal correction structure and the horizontal correction structure at the first end operate synchronously, allowing for synchronized adjustment of the two symmetrical sides of the subframe 20.

[0055] In a possible implementation, the subframe correction device further includes a sensor, which is used to determine the position of the correction point of the subframe 20 .

[0056] The sensor is a component in the subframe correction device, which is used to accurately determine the position of the correction point on the subframe 20. The correction point is usually the part of the subframe 20 where the deformation or distortion occurs, and it is necessary to apply a correction force to restore its original shape or achieve the desired geometric dimensions. By determining the position of the correction point through the sensor, it can be ensured that the correction force can be accurately applied to the part that needs correction, thereby improving the correction accuracy. It helps to reduce errors and uncertainties in the correction process and improve product quality. The information provided by the sensor can also be used to optimize the correction process. For example, based on the feedback from the sensor, the size, direction and application time of the correction force can be adjusted to achieve the correction goal more efficiently. In addition, the sensor can also monitor the deformation during the correction process and promptly detect and correct possible problems.

[0057] In one possible embodiment, the subframe orthopedic device further includes: a safety light grating 17 and a safety protection net 18; the safety protection net 18 is used to protect the operation of the subframe orthopedic device; the safety light grating 17 is used to determine whether the operation of the subframe orthopedic device is interfered with, and if it is determined that the operation of the subframe orthopedic device is interfered with, perform interference response operations.

[0058] The safety net 18 is a safety component within the subframe orthopedic device, designed to protect the device's normal operation. By surrounding key areas or the entire working area, the net prevents people or other objects from entering the work area, thereby preventing potential collisions and damage. The net also serves as an accident prevention tool. During operation, if potential hazards (such as flying debris or moving parts) are present, the net effectively isolates them from the work area, protecting the operator.

[0059] The safety light curtain 17 is a photoelectric safety detection device consisting of a transmitter and a receiver. The transmitter emits a light beam, which the receiver receives. When the light beam is blocked or interrupted, the receiver detects this change and issues a signal to trigger the appropriate safety action. In subframe correction equipment, the safety light curtain 17 is used to determine whether the equipment's operation is being disrupted. For example, if an operator or other object accidentally enters the work area and blocks the light beam of the safety light curtain 17, the safety light curtain 17 immediately detects this disruption and issues a signal.

[0060] Once the safety light curtain 17 detects interference with the operation of the equipment, it executes interference response actions. Interference response actions may include stopping the operation of the equipment, issuing an alarm or lighting a warning, etc., to ensure the safety of the operator and other personnel. The combined use of the safety net 18 and the safety light curtain 17 can greatly improve the safety of the subframe orthopedic equipment. This dual protection ensures that accidents due to accidental entry or other factors during the operation of the equipment will not occur. The combination of the precise detection capabilities of the safety light curtain 17 and the physical isolation of the safety net 18 can ensure that the equipment can respond quickly and take appropriate measures when interfered with, thereby enhancing the reliability of the equipment.

[0061] In a possible implementation, the subframe correction device further includes: a display 19; the display 19 is configured to control the operation of the subframe correction device based on an operation instruction; or to display the operation status of the subframe correction device.

[0062] Display 19 plays a controlling role in the subframe correction device. Through display 19, the operator can input operating instructions, such as selecting the correction mode and setting correction parameters, thereby controlling the device's operation. This intuitive and easy-to-use control method reduces operational difficulty and improves work efficiency. In addition to controlling device operation, display 19 also displays the subframe correction device's operating status in real time. This includes key information such as the device's current operating mode, correction progress, and remaining time. By monitoring this information, the operator can promptly understand the device's operating status and make appropriate adjustments to ensure a smooth correction process.

[0063] In addition, the display 19 can also record and display the device's operating data and correction results, facilitating subsequent data analysis and optimization. By analyzing the recorded data, the device's performance and improvement directions can be understood, providing a basis for continuous optimization and upgrading of the device.

[0064] In summary, the technical solution provided by this utility model automates the subframe correction process, improving production efficiency. Furthermore, the provision of upper and lower electric cylinders enables vertical correction of the subframe. The provision of left and right electric cylinders allows for horizontal correction of the subframe. The inclusion of sensors further enhances the accuracy of the correction process.

[0065] Those skilled in the art will understand that Figure 1 、 Figure 2 and Figure 3 The structure shown in the figure does not constitute a limitation on the structure of the present invention, and may include more or fewer components than shown in the figure, or combine certain components, or adopt a different component arrangement.

[0066] It should be understood that the term "plurality" used herein refers to two or more. "And / or" describes a relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone. The character " / " generally indicates an "or" relationship between the associated objects.

[0067] The above are merely exemplary embodiments of the present invention and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A subframe correction device, characterized in that: The auxiliary frame correction device includes: a frame, a first oil cylinder, a movable plate, an upper electric cylinder, a lower electric cylinder and a pressing oil cylinder; The frame is used to support the first oil cylinder, the movable plate, the upper electric cylinder, the lower electric cylinder and the pressing oil cylinder; The first oil cylinder is used to drive the movable plate to move in the vertical direction; The movable plate is used to drive the upper electric cylinder to move; The upper electric cylinder is used to apply a vertical downward corrective force to the subframe; The lower electric cylinder is used to apply a vertical upward corrective force to the sub-frame; The clamping oil cylinder is used to fix the sub-frame.

2. The subframe correction device according to claim 1, characterized in that The upper electric cylinder includes a first electric cylinder and a second electric cylinder, and the first electric cylinder and the second electric cylinder are symmetrically distributed in the horizontal direction relative to the sub-frame; the lower electric cylinder includes a third electric cylinder and a fourth electric cylinder, and the third electric cylinder and the fourth electric cylinder are symmetrically distributed in the horizontal direction relative to the sub-frame.

3. The subframe correction device according to claim 2, characterized in that: The first electric cylinder and the third electric cylinder are symmetrically distributed relative to the sub-frame in the vertical direction; the second electric cylinder and the fourth electric cylinder are symmetrically distributed relative to the sub-frame in the vertical direction.

4. The subframe correction device according to any one of claims 1 to 3, characterized in that: The subframe correction device further includes: a horizontal correction structure, the horizontal correction structure including a fifth electric cylinder, a first guide rail and a first slide; The fifth electric cylinder is used to drive the first slide to move horizontally on the first guide rail; The first slide is used to apply a corrective force in a first direction to a first side of the sub-frame, where the first direction is a direction in which the first guide rail points to the sub-frame.

5. The subframe correction device according to claim 4, characterized in that There are two horizontal correction structures, and the two horizontal correction structures are symmetrically distributed in the horizontal direction relative to the subframe.

6. The subframe correction device according to claim 5, characterized in that The horizontal correction structure further includes: a first cylinder and a first pin; The first cylinder is located on the first slide, and is used to drive the first pin to move to a first position, so that the first slide applies a corrective force in a first direction to the first side of the sub-frame through the first pin.

7. The subframe correction device according to claim 6, characterized in that: The first cylinder is further used to drive the first pin to move to the second position; When the first pin moves to the second position, the first slide is further used to apply a corrective force in a second direction to the first side of the sub-frame through the first pin, where the second direction is opposite to the first direction.

8. The subframe correction device according to claim 7, characterized in that: The sub-frame correction device further includes a sensor, which is used to determine the position of the correction point of the sub-frame.

9. The subframe correction device according to claim 8, characterized in that The subframe correction device also includes: a safety grating and a safety net; The safety net is used to protect the operation of the subframe orthopedic equipment; The safety light barrier is used to determine whether the operation of the sub-frame orthopedic device is interfered with, and to perform an interference response operation if it is determined that the operation of the sub-frame orthopedic device is interfered with.

10. The subframe correction device according to claim 9, characterized in that The subframe correction device further includes: a display; The display is used to control the operation of the sub-frame orthopedic device based on an operation instruction; or to display the operating status of the sub-frame orthopedic device.

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