Torsion spring strong twisting device for automobile seat
By introducing torque and angle sensors into the torsion spring strong torsion device for car seats, combined with a drive motor and transmission gears, precise control of the torsion spring strong torsion process is achieved, solving the problem of poor torsion spring shaping effect and improving the seat's rebound force and riding comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-04-03
AI Technical Summary
Existing torsion springs for car seats are difficult to control precisely in terms of torque and angle during strong torsion, resulting in poor shaping effect and affecting the seat's rebound force and riding comfort.
The system employs torque and angle sensors in conjunction with a drive structure to monitor and control the torque and angle of the torsion spring during the forced torsion process in real time. Power is transmitted through a drive motor and transmission gears to ensure that the torsion spring reaches the predetermined torque value during the forced torsion process.
Precise control of the torsion spring's strong torsion process has been achieved, improving the quality and stability of the torsion spring and ensuring the seat's rebound force and comfort.
Smart Images
Figure CN224073267U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of automotive parts production equipment, and in particular to a torsion spring strong torsion device for automotive seats. Background Technology
[0002] Car seat springs are primarily used to adjust the seat back angle. These springs are typically designed as torsion springs, which store and release angular energy. A torsion spring is statically fixed by a lever arm rotating around its central axis. Its ends are fixed to other components; when these components rotate around the spring's center, the spring pulls them back to their initial position, generating torque or rotational force, thus providing a restoring force to the seat back.
[0003] To minimize plastic deformation during operation, torsion springs typically require strong torsion treatment before use. However, existing torsion springs for automotive seats struggle to precisely control torque and angle during strong torsion, resulting in poor spring shaping. Poor shaping leads to elasticity decay, causing the seat's rebound force to gradually weaken, making it unable to maintain the intended angle and severely impacting seating comfort.
[0004] Therefore, it is necessary to improve the existing manufacturing process of torsion springs for automotive seats to overcome the shortcomings of the existing technology. Utility Model Content
[0005] To overcome the problems existing in the related technologies, one of the objectives of this application is to provide a torsion spring strong torsion device for automobile seats. This device can accurately monitor the torque during the strong torsion process of the torsion spring through a torque sensor, thereby improving the strong torsion effect of the torsion spring and ensuring the quality of the torsion spring.
[0006] A torsion spring strong torsion device for automobile seats, comprising:
[0007] The machine base includes a mounting base for placing a spring, which is rotatably mounted on the machine base. A drive structure is provided at the bottom of the machine base, and the output end of the drive structure is fixedly connected to the mounting base to drive the mounting base to rotate. The mounting base is provided with a first locking position.
[0008] The machine base is also provided with an auxiliary locking structure, and the auxiliary locking structure is provided with a second locking position;
[0009] The torsion spring is arranged in a ring shape and has an inner coiled end and an outer extended end. The inner coiled end is engaged with the first locking position, and the outer extended end is engaged with the second locking position. A torque sensor is provided below the machine base. One end of the torque sensor is connected to the output end of the drive structure, and the other end is connected to the torsion spring on the mounting base.
[0010] In a preferred embodiment of this utility model, the drive structure includes a drive motor, a transmission gear plate, and a transmission shaft. The transmission shaft is rotatably mounted on the machine base, and the mounting base is provided on the top of the transmission shaft. The transmission gear plate is fixed to the bottom of the transmission shaft.
[0011] The drive motor is fixed below the machine base, and a transmission gear is provided on the output shaft of the drive motor. The transmission gear meshes with the transmission gear plate.
[0012] In a preferred embodiment of this invention, an angle sensor is also included, which is fixed on the mounting base.
[0013] In a preferred embodiment of this invention, the first locking position includes two opposing first locking blocks and second locking blocks, with the first locking position formed between the two locking blocks.
[0014] In a preferred embodiment of this invention, the first clamping block is fixed on the mounting base, the mounting base is provided with a sliding groove, the second clamping block is slidably disposed on the sliding groove, and the mounting base is also provided with a locking bolt for locking the second clamping block.
[0015] In a preferred embodiment of this utility model, the auxiliary locking structure includes an auxiliary base, which is disposed on the surface of the machine tool; the auxiliary base has a first end and a second end opposite to each other, and the first end of the auxiliary base is pivotally connected to the machine tool;
[0016] The second end of the auxiliary base is located on one side of the mounting base, and a detachable clamping plate is provided on the second end of the auxiliary base, forming a second clamping position between the clamping plate and the auxiliary base.
[0017] In a preferred embodiment of this invention, an adjustment structure is provided between the auxiliary substrate and the machine base, the adjustment structure being used to adjust the position of the second end of the auxiliary substrate.
[0018] In a preferred embodiment of this invention, a guide rail is provided on the machine base, and the bottom of the second end of the auxiliary substrate is slidably connected to the guide rail.
[0019] The beneficial effects of this utility model are as follows:
[0020] This utility model provides a torsion spring device, including a machine base with a mounting base for holding a torsion spring. A drive structure is located at the bottom of the machine base, with its output end fixedly connected to the mounting base to drive the mounting base to rotate. The mounting base has a first locking position. An auxiliary locking structure with a second locking position is also provided on the machine base. The torsion spring is annular, having an inner coiled end and an outer extending end. The inner coiled end engages with the first locking position, and the outer extending end engages with the second locking position. A torque sensor is located below the machine base, with one end connected to the output end of the drive structure and the other end connected to the torsion spring on the mounting base. During use, the inner coiled end of the torsion spring is engaged with the first locking position on the mounting base, and the outer extending end is engaged with the second locking position on the auxiliary locking structure, thus stably fixing the torsion spring to the device. Then, the drive structure is activated, causing the mounting base to rotate. During the rotation of the mounting base, the inner coiled end of the torsion spring rotates with the mounting base, while the outer extension end is fixed by the auxiliary locking structure, thus subjecting the torsion spring to strong torque. During this strong torque process, a torque sensor monitors the torque borne by the torsion spring in real time and feeds the data back to the operator. Based on the data from the torque sensor, the operator precisely controls the rotation angle and speed of the drive structure to ensure that the torsion spring reaches the predetermined torque value during strong torque. The torque sensor allows for real-time and accurate monitoring of the torque during the strong torque process, enabling operators to precisely control the operation of the drive structure, avoiding insufficient or excessive torque, greatly improving the strong torque effect of the torsion spring, and ensuring its quality. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of a torsion spring device for car seats provided in an embodiment of this utility model;
[0022] Figure 2 This is a schematic diagram showing the cooperation between the mounting base and the auxiliary locking structure provided in an embodiment of this utility model;
[0023] Figure 3 This is a schematic diagram showing the first clamping block and the second clamping block provided in the embodiments of this utility model being disposed on the mounting base;
[0024] Figure 4 This is a schematic diagram of the torsion spring provided in an embodiment of this utility model.
[0025] Figure label:
[0026] 1. Machine base; 11. Guide rail; 2. Mounting base; 21. First clamping position; 22. Angle sensor; 23. First clamping block; 24. Second clamping block; 25. Slide groove; 26. Locking bolt; 3. Auxiliary locking structure; 31. Auxiliary base; 32. Clamping plate; 321. Second clamping position; 33. Adjustment structure; 4. Drive structure; 41. Transmission gear plate; 42. Transmission shaft; 43. Drive motor; 431. Transmission gear; 5. Torque sensor; 100. Torsion spring; 101. Inner winding end; 102. Outer extension end. Detailed Implementation
[0027] Preferred embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.
[0028] Example 1
[0029] like Figures 1-4 As shown, this application provides a torsion spring strong torsion device for automobile seats, comprising:
[0030] The machine base 1 is provided with a mounting base 2 for placing a torsion spring. The mounting base 2 is rotatably mounted on the machine base 1. The bottom of the machine base 1 is provided with a drive structure 4. The output end of the drive structure 4 is fixedly connected to the mounting base 2 to drive the mounting base 2 to rotate. The mounting base 2 is provided with a first locking position 21.
[0031] The machine base 1 is also provided with an auxiliary locking structure 3, and the auxiliary locking structure 3 is provided with a second locking position 321;
[0032] The torsion spring 100 is arranged in a ring and has an inner coiled end 101 and an outer extension end 102. The inner coiled end is engaged with the first locking position 21 and the outer extension end is engaged with the second locking position 321. A torque sensor 5 is arranged below the machine base 1. One end of the torque sensor 5 is connected to the output end of the drive structure 4, and the other end is connected to the torsion spring on the mounting base 2.
[0033] Specifically, mounting base 2 is pivotally connected to machine base 1, and drive structure 4 drives mounting base 2 to rotate, thereby causing the inner coil of the torsion spring to rotate. One end of torque sensor 5 is connected to the output end of drive structure 4, and the other end is connected to the torsion spring on mounting base 2. During the strong torsion process of the torsion spring, torque sensor 5 monitors the torque borne by the torsion spring in real time and feeds back the monitoring data to the operator in real time. Based on the data fed back by torque sensor 5, the operator precisely controls the rotation angle and speed of drive structure 4 to ensure that the torsion spring can reach the predetermined torque value during the strong torsion process.
[0034] The aforementioned torsion device includes a machine base 1, with a mounting base 2 for placing a torsion spring. A drive structure 4 is located at the bottom of the machine base 1, and its output end is fixedly connected to the mounting base 2 to drive the mounting base 2 to rotate. The mounting base 2 has a first locking position 21. An auxiliary locking structure 3 is also provided on the machine base 1, with a second locking position 321. The torsion spring is annular, having an inner coiled end and an outer extending end. The inner coiled end engages with the first locking position 21, and the outer extending end engages with the second locking position 321. A torque sensor 5 is located below the machine base 1, with one end connected to the output end of the drive structure 4 and the other end connected to the torsion spring on the mounting base 2. During use, the inner coiled end of the torsion spring is engaged with the first locking position 21 on the mounting base 2, and the outer extending end of the torsion spring is engaged with the second locking position 321 on the auxiliary locking structure 3, thus stably fixing the torsion spring to the device. Then, the drive structure 4 is activated, causing the mounting base 2 to rotate. During the rotation of the mounting base 2, the inner coiled end of the torsion spring rotates with the mounting base 2, while the outer extension end is fixed by the auxiliary locking structure 3, thus applying strong torque to the torsion spring. During this strong torque process, the torque sensor 5 monitors the torque borne by the torsion spring in real time and feeds the data back to the operator. Based on the data from the torque sensor 5, the operator precisely controls the rotation angle and speed of the drive structure 4 to ensure that the torsion spring reaches the predetermined torque value during the strong torque process. The torque sensor 5 is designed to monitor the torque of the torsion spring in real time and accurately. This allows operators to precisely control the operation of the drive structure 4, avoiding insufficient or excessive torque, greatly improving the strong torque effect of the torsion spring and ensuring its quality.
[0035] Specifically, this embodiment provides a specific implementation of the drive structure 4. Specifically, the drive structure 4 includes a drive motor 43, a transmission gear plate 41, and a transmission shaft 42. The transmission shaft 42 is rotatably mounted on the machine base 1, and the top of the transmission shaft 42 is provided with the mounting base 2. The transmission gear plate 41 is fixed to the bottom of the transmission shaft 42.
[0036] The drive motor 43 is fixed below the machine base 1, and a transmission gear 431 is provided on the output shaft of the drive motor 43. The transmission gear 431 meshes with the transmission gear plate 41.
[0037] In practical use, after the torsion spring is fixed, the operator starts the drive motor 43. The motor output shaft rotates, driving the transmission gear 431 to rotate. Due to the meshing of the gear and the gear plate, the transmission gear plate 41 also rotates, which in turn drives the transmission shaft 42 to rotate. The mounting base 2 and the inner coiled end of the torsion spring rotate together with the transmission shaft 42. At this time, the outer extension end of the torsion spring is fixed by the auxiliary locking structure 3, and the torsion spring begins to enter the strong torque stage. One end of the torque sensor 5 under the machine base 1 is connected to the transmission shaft 42, and the other end is connected to the torsion spring. It monitors the torque borne by the torsion spring in real time and feeds the data back to the operator. Based on this, the operator can precisely control the speed and rotation angle of the drive motor 43 to ensure that the torsion spring reaches the predetermined torque value. The drive structure 4 adopts a transmission method of meshing gears and gear plates, which can realize stable power transmission, reduce energy loss in the power transmission process, effectively improve transmission efficiency, ensure that the torsion spring is subjected to uniform force during strong torque, and improve the quality of strong torque. The drive motor 43 can be a servo motor.
[0038] Furthermore, the torque-enhancing device also includes an angle sensor 22, which is fixed to the mounting base 2. Specifically, a threaded hole matching the mounting hole of the angle sensor 22 is pre-set on the top of the mounting base 2. During installation, the mounting hole of the angle sensor 22 is aligned with the threaded hole on the mounting base 2, and a suitable bolt is passed through the mounting hole of the angle sensor 22 and screwed into the threaded hole of the mounting base 2. By tightening the bolt, the angle sensor 22 is firmly fixed to the mounting base 2.
[0039] Angle sensor 22 is used to monitor the rotation angle of mounting base 2 in real time. In conjunction with torque sensor 5, operators can obtain more comprehensive information, thereby more accurately controlling drive motor 43. Compared to the case with only torque sensor 5, it can more precisely control the torsion angle and torque of torsion spring, further improving the quality of high-torsion operation and meeting the production requirements of high-precision products.
[0040] In a preferred embodiment, the first locking position 21 includes two opposing first locking blocks 23 and second locking blocks 24, with the first locking position 21 formed between the two locking blocks.
[0041] Furthermore, the first clamping block 23 is fixed on the mounting base 2, the mounting base 2 is provided with a sliding groove 25, the second clamping block 24 is slidably disposed on the sliding groove 25, and the mounting base 2 is also provided with a locking bolt 26 for locking the second clamping block 24.
[0042] During use, for the torsion spring to be processed, the operator adjusts the first clamping position 21 according to the size of the torsion spring. The first clamping position 21 consists of a first clamping block 23 fixed on the mounting base 2 and a second clamping block 24 that can slide on the slide groove 25 of the mounting base 2. The operator loosens the locking bolt 26 on the mounting base 2 and slides the second clamping block 24 according to the size of the inner coil end of the torsion spring to adjust the distance between the two clamping blocks.
[0043] After adjustment, the worker places the inner coiled end of the torsion spring between the first locking block 23 and the second locking block 24, and tightens the locking bolt 26 again to ensure that the second locking block 24 is firmly fixed and the inner coiled end of the torsion spring is tightly locked. Then, the outer extension end of the torsion spring is inserted into the second locking position 321 of the auxiliary locking structure 3.
[0044] The design of the slidingly adjustable second clamping block 24 and locking bolt 26 allows the first clamping position 21 to be flexibly adjusted according to the inner coil end of the torsion spring of different specifications and shapes. This greatly improves the adaptability of the torsion device to various types of torsion springs, reduces the need to replace clamping parts due to changes in torsion spring specifications, lowers production costs, and improves production efficiency.
[0045] By tightening the locking bolt 26 to secure the second clamping block 24, a stable and reliable clamping force can be provided to the inner coil end of the torsion spring. During the strong torsion process, it effectively prevents the torsion spring from shifting or loosening, ensures uniform force on the torsion spring, improves the stability of the strong torsion operation, and thus improves the processing quality of the torsion spring.
[0046] In another embodiment, the auxiliary locking structure 3 includes an auxiliary base 31 disposed on the surface of the machine base 1; the auxiliary base 31 has a first end and a second end opposite to each other, and the first end of the auxiliary base 31 is pivotally connected to the machine base 1;
[0047] The second end of the auxiliary base 31 is located on one side of the mounting base 2. A detachable clamping plate 32 is provided on the second end of the auxiliary base 31, and a second clamping position 321 is formed between the clamping plate 32 and the auxiliary base 31.
[0048] Furthermore, an adjustment structure 33 is provided between the auxiliary substrate 31 and the machine base 1, the adjustment structure 33 being used to adjust the position of the second end of the auxiliary substrate 31. Even further, a guide rail 11 is provided on the machine base 1, and the bottom of the second end of the auxiliary substrate 31 is slidably connected to the guide rail 11.
[0049] During use, the operator can select a suitable clamping plate 32 and install it onto the second end of the auxiliary base 31 according to the special shape of the outer extension end of the torsion spring. By adjusting the structure 33, the position and angle of the second end of the auxiliary base 31 can be flexibly adjusted so that the second clamping position 321 can better fit the shape of the outer extension end of the torsion spring.
[0050] After fixing the inner coiled end of the torsion spring to the first locking position 21, lock the outer extension end of the torsion spring into the second locking position 321. Start the drive motor 43 to perform a strong torsion operation on the torsion spring. During the operation, closely monitor the data fed back by the torque sensor 5 and the angle sensor 22, and adjust the operating parameters of the drive motor 43 in a timely manner to ensure that the strong torsion process of the torsion spring proceeds smoothly and meets product quality requirements.
[0051] The auxiliary base 31 is pivotally connected to the machine base 1, and its second end can slide along the guide rail 11. In conjunction with the adjustment structure 33, the position and angle of the second clamping position 321 can be flexibly adjusted. Simultaneously, the clamping plate 32 is detachable and can be replaced according to the shape and size of different torsion spring extensions. This allows the torsion device to adapt to more torsion springs of different specifications and shapes, greatly improving the versatility and flexibility of the equipment and broadening its application range.
[0052] By adjusting the position and angle of the second end of the auxiliary base 31 and selecting a suitable clamping plate 32, the second clamping position 321 can be tightly fitted with the outer extension end of the torsion spring, providing a more stable and reliable clamping force. During the strong torsion process, it effectively prevents the outer extension end of the torsion spring from shifting or loosening, ensures uniform force on the torsion spring, improves the stability of the strong torsion operation, and thus improves the processing quality of the torsion spring.
[0053] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0054] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.
[0055] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A torsion spring strong torsion device for automobile seats, characterized in that, The application relates to a torsion spring strong-torque device for an automobile seat. The application comprises a machine table, wherein a mounting seat for placing a spring is arranged in the machine table, and the mounting seat is rotatably arranged on the machine table; a driving structure is arranged at the bottom of the machine table, and the output end of the driving structure is fixedly connected with the mounting seat to drive the mounting seat to rotate; a first clamping position is arranged on the mounting seat; an auxiliary locking structure is further arranged on the machine table, and a second clamping position is arranged on the auxiliary locking structure; the spring is arranged in a ring shape and has an inner coiled end and an outer extended end; the inner coiled end is clamped with the first clamping position, and the outer extended end is clamped with the second clamping position; a torque sensor is arranged below the machine table, one end of the torque sensor is connected with the output end of the driving structure, and the opposite end is connected with the spring on the mounting seat.
2. The torsion spring strong-torque device for an automobile seat according to claim 1, wherein the driving structure comprises a driving motor, a transmission gear plate and a transmission shaft; the transmission shaft is rotatably arranged on the machine table; the top of the transmission shaft is provided with the mounting seat; and the transmission gear plate is fixedly arranged at the bottom of the transmission shaft.
3. The torsion spring strong-torque device for an automobile seat according to claim 1, wherein an angle sensor is further arranged on the mounting seat.
4. The torsion spring strong-torque device for an automobile seat according to any one of claims 1-3, wherein the first clamping position comprises two oppositely arranged first clamping blocks and second clamping blocks, and the first clamping position is formed between the two clamping blocks.
5. The torsion spring strong-torque device for an automobile seat according to claim 4, wherein the first clamping block is fixedly arranged on the mounting seat; a sliding groove is arranged on the mounting seat; the second clamping block is slidably arranged on the sliding groove; and a locking bolt for locking the second clamping block is further arranged on the mounting seat.
6. The torsion spring strong-torque device for an automobile seat according to any one of claims 1-3, wherein the auxiliary locking structure comprises an auxiliary base body, and the auxiliary base body is arranged on the surface of the machine table; the auxiliary base body has opposite first and second ends; and the first end of the auxiliary base body is pivotally connected with the machine table.
7. The torsion spring strong-torque device for an automobile seat according to claim 6, wherein an adjusting structure is arranged between the auxiliary base body and the machine table, and the adjusting structure is used for adjusting the position of the second end of the auxiliary base body.
8. The torsion spring strong-torque device for an automobile seat according to claim 6, wherein a guide rail is arranged on the machine table, and the bottom of the second end of the auxiliary base body is slidably connected with the guide rail.