Multi-point automatic bending module applied to automobile seat spring steel wire

Abstract

The utility model discloses a kind of multi-point automatic bending module applied to automobile seat spring steel wire, including bending section and shaping section;Bending section includes steel wire positioning mechanism, and the transverse steel wire bending mechanism and longitudinal steel wire bending mechanism being set around steel wire positioning mechanism;Transverse steel wire bending mechanism is set one by one to the end of each transverse steel wire, and the orientation of each transverse steel wire bending mechanism is all consistent with the bending direction of corresponding transverse steel wire end;Longitudinal steel wire bending mechanism is set one by one to the end of each longitudinal steel wire, and the orientation of each longitudinal steel wire bending mechanism is all consistent with the bending direction of corresponding longitudinal steel wire end.The utility model is dedicated to overcoming the limitation of prior art, provide a kind of module, which can simultaneously automatically and accurately bend multiple ends of automobile seat spring steel wire.Not only realize the all-around accurate bending of steel wire end, also greatly improve production efficiency and product quality.

Description

Technical Field

[0001] This utility model belongs to the technical field of automotive seat spring steel wire processing equipment, and specifically relates to a multi-point automatic bending module for automotive seat spring steel wire. Background Technology

[0002] In the production process of automotive seat spring steel wire, the two ends of the transverse steel wire need to be bent quickly. Currently, most bending processes are performed manually or using a single tooling. However, these methods have many drawbacks and shortcomings, specifically as follows: ① Manual bending has low production efficiency; ② The poor precision of a single tooling makes it difficult to meet complex and ever-changing bending requirements, resulting in unstable product quality and increasing the difficulty and cost of subsequent processing.

[0003] In view of this, Chinese utility model patent application CN202011143689.5 discloses a wire bending mechanism, which is mainly applicable to the curved bending of the wires on both sides of the spring steel wire in automobile seats. This wire bending mechanism is assembled from a housing, an outer turntable, a mounting plate, a pressure rod, a rotary cylinder, a cylindrical mounting block, reinforcing ribs, a housing bottom cover, a motor, a worm gear, a turbine, a bending block, an upper mandrel body, a fixed copper sleeve, a needle roller bearing, a lower mandrel body, a lever, a housing top cover, a pull claw, a lower mandrel fixing block, a pressure bearing, a bearing fixing seat, a coupling, a telescopic cylinder, an outer rotating sleeve, and an oil port sealing cover. This solution reduces production costs and improves production efficiency.

[0004] However, in the production process of automotive seat spring steel wire, multiple ends need to be bent, and the bending directions of each end are not the same. If only the steel wire bending mechanism described above is used, each end can only be bent one by one, and the bending direction still needs to be adjusted manually. As a result, it is difficult to avoid the problems of cumbersome operation and high product defect rate. Summary of the Invention

[0005] This invention aims to overcome the limitations of existing technologies by providing a module capable of automatically and precisely bending multiple ends of automotive seat spring steel wires simultaneously. Through cleverly designed bending and shaping sections, this module not only achieves precise bending of the wire ends from all directions but also significantly improves production efficiency and product quality. In the bending section, the transverse and longitudinal wire bending mechanisms each perform their respective functions, ensuring that each wire end is bent according to a predetermined direction and angle. Simultaneously, the avoidance mechanism prevents interference between the bending mechanisms and provides ample space for wire loading and unloading. In the shaping section, the coordinated operation of the wire flipping and positioning mechanism, the pulling and shaping mechanism, and the pressing and fixing mechanism further guarantees the shaping effect of the wire ends, making the final product more in line with quality requirements.

[0006] To achieve the above objectives, this utility model first provides a multi-point automatic bending module for automotive seat spring steel wires, characterized in that it includes a bending section and a shaping section; the bending section includes a steel wire positioning mechanism, and a transverse steel wire bending mechanism and a longitudinal steel wire bending mechanism arranged around the steel wire positioning mechanism; the transverse steel wire bending mechanism is arranged one-to-one for the end of each transverse steel wire, and the orientation of each transverse steel wire bending mechanism matches the bending direction of the corresponding transverse steel wire end; the longitudinal steel wire bending mechanism is arranged one-to-one for the end of each longitudinal steel wire, and the orientation of each longitudinal steel wire bending mechanism matches the bending direction of the corresponding longitudinal steel wire end.

[0007] Furthermore, the transverse steel wire bending mechanism includes a first outer turntable and a first end clamp disposed on the first outer turntable. The first outer turntable is connected to a linear drive cylinder via a transmission structure. When the linear drive cylinder performs a telescopic action, it can drive the first outer turntable to rotate, so as to achieve bending and forming of the end of the transverse steel wire through the first end clamp.

[0008] Furthermore, the transmission structure includes a precision rack and a backlash-free gear that mesh with each other. The precision rack is connected to the piston rod of the linear drive cylinder, and the backlash-free gear is coaxially sleeved on the spindle of the first outer turntable.

[0009] Furthermore, the linear drive cylinder is a high-speed cylinder, and the piston rod extension stroke of the high-speed cylinder is adjustable to adapt to bending requirements.

[0010] Furthermore, the first end clamp consists of the upper section of the spindle of the first outer turntable and the first bending shaft. The reserved gap between the two serves as the clamping space for the transverse steel wire end, and the middle section of the first bending shaft is recessed to form a first annular groove for engaging the transverse steel wire end.

[0011] Furthermore, an avoidance mechanism is provided between each of the transverse steel wire bending mechanisms. The avoidance mechanism serves two purposes: firstly, to create loading and unloading space for the automotive seat spring steel wire, and secondly, to prevent mutual interference between the transverse steel wire bending mechanisms.

[0012] Furthermore, the avoidance mechanism includes a first vertical cylinder, a first longitudinal cylinder, and a second longitudinal cylinder. The first vertical cylinder is connected to the transverse wire bending mechanism corresponding to end C and end H through a first vertical guide structure. The first longitudinal cylinder is connected to the transverse wire bending mechanism corresponding to end D and end G through a first longitudinal guide structure. The second longitudinal cylinder is connected to the transverse wire bending mechanism corresponding to end B and end I through a second longitudinal guide structure.

[0013] Furthermore, the first vertical guide structure includes a first guide frame and a first lifting platform connected to the vertical guide column of the first guide frame. The first lifting platform is connected to the transverse wire bending mechanism corresponding to the C end and the H end, and multiple first flexible abutment rods for abutting the car seat spring wire extend vertically downward at the bottom of the first lifting platform for a predetermined length. The first longitudinal guide structure includes a first longitudinal slide and a first longitudinal sliding seat slidably connected to the first longitudinal slide. The first longitudinal sliding seat is connected to the transverse wire bending mechanism corresponding to the D end and the G end. The second longitudinal guide structure includes a second longitudinal slide and a second longitudinal sliding seat slidably connected to the second longitudinal slide. The second longitudinal sliding seat is connected to the transverse wire bending mechanism corresponding to the B end and the I end.

[0014] Furthermore, the longitudinal wire bending mechanism includes a rotary cylinder and a second outer turntable rotatably connected to the output shaft of the rotary cylinder. A second end clamp is provided on the second outer turntable. The second end clamp consists of the upper section of the mandrel of the second outer turntable and a second bending shaft. The reserved gap between the two serves as the clamping space for the end of the longitudinal wire, and the middle section of the second bending shaft is recessed to form a second annular groove for engaging the end of the longitudinal wire.

[0015] Furthermore, the shaping section includes a wire flipping and positioning mechanism, with a pulling and shaping mechanism provided below the wire flipping and positioning mechanism corresponding to the B end and the I end, and a pressing and fixing mechanism provided above the wire flipping and positioning mechanism.

[0016] Compared with the prior art, the significant advantages of this utility model are: (1) By using a multi-point automatic bending module, the goal of simultaneously and precisely bending multiple ends of automotive seat spring steel wires was achieved. This module not only greatly improves production efficiency but also significantly enhances the stability of product quality. In the bending section, the module can automatically and accurately complete the preset bending actions of each wire end without manual operation, thereby greatly shortening the production cycle. The setting of the shaping section further ensures the shaping effect of the wire ends, making the final product more in line with quality requirements; (2) The transmission structure consisting of a linear drive cylinder, a precision rack and a backlash-free gear significantly improves the transmission accuracy and response speed. Compared with the traditional motor worm gear drive method, this utility model effectively shortens the mechanical transmission chain, reduces inertial delay, and greatly shortens the single bending cycle, thereby greatly meeting the production needs of high-speed production. (3) The application of backlash-free gears effectively eliminates transmission backlash, ensuring the accuracy of bending angles and improving product quality. In addition, the direct drive method of linear drive cylinders simplifies the mechanical structure, reduces wear and lubrication maintenance frequency, and further improves production efficiency. In terms of energy consumption, the intermittent working mode of linear drive cylinders significantly reduces energy consumption compared to motor drive, and has lower operating noise, meeting green manufacturing standards; (4) The design of the avoidance mechanism fully considers the ease of operation and space utilization in actual production. Through the coordinated action of the first vertical cylinder, the first longitudinal cylinder and the second longitudinal cylinder, the position of each transverse steel wire bending mechanism can be flexibly adjusted to ensure that they do not interfere with each other during the bending process. At the same time, it provides sufficient operating space for loading and unloading steel wires, further improving production efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a front view of the multi-point automatic bending module in Embodiment 1; Figure 2 This is a side view of the multi-point automatic bending module in Embodiment 1; Figure 3 This is a front view of the bending section in Example 1; Figure 4 This is a side view of the bending section in Example 1; Figure 5These are the published diagrams of the transverse bending mechanism and the longitudinal bending mechanism in Embodiment 1; Figure 6 This is a schematic diagram of the transverse bending mechanism in Embodiment 1 (I); Figure 7 This is a schematic diagram (II) of the transverse bending mechanism in Embodiment 1; Figure 8 This is a top view of the bending section in Example 1; Figure 9 This is a three-dimensional view (a) of the bending section in Example 1; Figure 10 This is a three-dimensional view (II) of the bending section in Example 1; Figure 11 This is a three-dimensional view (III) of the bending section in Example 1; Figure 12 yes Figure 11 A magnified view of a section in the middle K area; Figure 13 This is a front view of the shaping section in Example 1; Figure 14 This is a side view of the shaping section in Example 1; The diagram is labeled as follows: 1-Bending section, 2-Shaping section, 101-Wire positioning mechanism, 102-Transverse wire bending mechanism, 103-Longitudinal wire bending mechanism, 1021-First outer turntable, 1022-First end clamp, 1023-Linear drive cylinder, 1024-Transmission structure, 10241-Precision rack, 10242-Backlash-free gear, 10221-First bending shaft, 10222-First annular groove, 104-Avoidance mechanism, 1041-First vertical cylinder, 1042-First longitudinal cylinder, 1043-Second longitudinal cylinder, 1044-First vertical guide structure, 1045-First longitudinal guide structure, 1046-Second longitudinal guide structure, 10441-First guide frame, 1 0442-First lifting platform, 10443-First flexible abutment rod, 10451-First longitudinal slide, 10452-First longitudinal sliding seat, 10461-Second longitudinal slide, 10462-Second longitudinal sliding seat, 1031-Rotary cylinder, 1032-Second outer turntable, 1033-Second end clamp, 10331-Second bending shaft, 10332-Second annular groove, 201-Wire flipping positioning mechanism, 202-Pull-and-shape mechanism, 203-Crimping and fixing mechanism, 2021-End clamping groove, 2022-Abutment arm, 2023-Pull-and-shape cylinder, 2031-Second guide frame, 2032-Second lifting platform, 2033-Second vertical cylinder, 2034-Second flexible abutment rod. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0020] In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, in the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] Figures 1 to 5 This invention illustrates a first embodiment: a multi-point automatic bending module for automotive seat spring steel wires, comprising a bending section 1 and a shaping section 2. The bending section 1 includes a wire positioning mechanism 101, and a transverse wire bending mechanism 102 and a longitudinal wire bending mechanism 103 arranged around the wire positioning mechanism 101. The transverse wire bending mechanism 102 is configured corresponding to the end of each transverse wire, and the orientation of each transverse wire bending mechanism 102 matches the bending direction of the corresponding transverse wire end. The longitudinal wire bending mechanism 103 is configured corresponding to the end of each longitudinal wire, and the orientation of each longitudinal wire bending mechanism 103 matches the bending direction of the corresponding longitudinal wire end. Specifically, the wire positioning mechanism 101 includes a magnetic plate, and positioning grooves adapted to the mesh of automotive seat spring steel wires are provided on the left and right sides of the magnetic plate.

[0022] Please see Figure 6 and Figure 7 Considering that this device relies on a motor and is driven by a worm gear reducer, the mechanical transmission chain is relatively long, resulting in significant inertial delay and long single bending cycles, making it difficult to meet the demands of high-speed production. Furthermore, the backlash in the worm gear meshing leads to large bending angle errors, failing to meet the high precision requirements of automotive seat spring steel wire. Simultaneously, the worm gear experiences severe wear, requiring frequent lubrication and maintenance, which impacts production efficiency. Additionally, the continuous operation of the motor consumes a lot of energy, and the high-speed rotation of the worm gear generates significant noise, failing to meet green manufacturing standards.

[0023] In this embodiment, the transverse wire bending mechanism 102 includes a first outer turntable 1021 and a first end clamp 1022 disposed on the first outer turntable 1021. The first outer turntable 1021 is connected to a linear drive cylinder 1023 via a transmission structure 1024. When the linear drive cylinder 1023 performs a telescopic action, it can drive the first outer turntable 1021 to rotate, thereby achieving the bending and forming of the transverse wire end through the first end clamp 1022.

[0024] In specific implementation, the transmission structure 1024 includes a precision rack 10241 and a backlash-free gear 10242 that mesh with each other. The precision rack 10241 is connected to the piston rod of the linear drive cylinder 1023, and the backlash-free gear 10242 is coaxially sleeved on the spindle of the first outer turntable 1021. The cooperative use of the precision rack 10241 and the backlash-free gear 10242 significantly improves the accuracy and stability of the transmission system. The precision rack 10241, with its high-precision tooth profile design, ensures precise meshing with the backlash-free gear 10242, thereby effectively reducing the accumulation of errors during transmission. The application of the backlash-free gear 10242 further eliminates the backlash problem existing in traditional gear transmissions, making the entire transmission system more compact and efficient. In specific implementation, one end of the precision rack 10241 is tightly connected to the piston rod of the linear drive cylinder 1023. As the piston rod extends and retracts, the precision rack 10241 moves smoothly along a fixed direction. Meanwhile, the backlash-eliminating gear 10242 is coaxially sleeved on the spindle of the first outer turntable 1021 and rotates with the rotation of the outer turntable. When the precision rack 10241 moves, its teeth mesh with the teeth of the backlash-eliminating gear 10242, driving the backlash-eliminating gear 10242 and the outer turntable to rotate, thereby precisely bending the end of the steel wire through the first end clamp 1022.

[0025] Preferably, the linear drive cylinder 1023 is a high-speed cylinder with an adjustable piston rod extension stroke to adapt to bending requirements. The rapid response of the high-speed cylinder further improves bending efficiency and ensures smooth production. By adjusting the piston rod stroke, bending requirements for steel wires of different specifications can be flexibly met, demonstrating the flexibility and adaptability of the mechanism design. The synergistic effect of the precision rack 10241 and the backlash-free gear 10242 not only ensures bending accuracy but also extends the equipment's service life and reduces maintenance costs.

[0026] like Figure 7As shown, specifically, the first end clamp 1022 consists of the upper section of the mandrel of the first outer turntable 1021 and the first bending shaft 10221, with a reserved gap between them serving as the clamping space for the wire end. When bending the wire end, the upper section of the mandrel and the first bending shaft 10221 work together on the transverse wire end to ensure the wire remains stable under stress. The design of the upper section of the mandrel fully considers the diameter and material of the wire to ensure moderate clamping force, preventing damage to the wire surface while maintaining bending accuracy. The design of the first bending shaft 10221 focuses more on controlling the bending angle and direction, ensuring that the bent wire end meets specific shape and size requirements through precise calculation and adjustment. Furthermore, the middle section of the first bending shaft 10221 is recessed to form a first annular groove 10222 that engages the transverse wire end. The design of the first annular groove 10222 enhances the fixing effect of the end clamp on the wire end, effectively preventing the transverse wire from slipping or shifting during bending, and further improving the accuracy and stability of bending. The size and shape of the first annular groove 10222 are perfectly matched with the transverse wire end, thereby achieving the best clamping effect.

[0027] Please see Figure 3 , Figure 8 , Figure 9 and Figure 10In practical applications, to cope with complex and ever-changing bending requirements and ensure the stability and safety of the production process, a clearance mechanism 104 is also provided between each of the transverse wire bending mechanisms 102. The clearance mechanism 104 serves two purposes: firstly, to create loading and unloading space for the automotive seat spring wires, and secondly, to prevent mutual interference between the transverse wire bending mechanisms 102. Specifically, the clearance mechanism 104 includes a first vertical cylinder 1041, a first longitudinal cylinder 1042, and a second longitudinal cylinder 1043. The first vertical cylinder 1041 is connected to the transverse wire bending mechanisms 102 corresponding to the C-end and H-end through a first vertical guide structure 1044. The first longitudinal cylinder 1042 is connected to the transverse wire bending mechanisms 102 corresponding to the D-end and G-end through a first longitudinal guide structure 1045. The second longitudinal cylinder 1043 is connected to the transverse wire bending mechanisms 102 corresponding to the B-end and I-end through a second longitudinal guide structure 1046. The design of the first vertical guide structure 1044, the first longitudinal guide structure 1045, and the second longitudinal guide structure 1046 fully considers the rationality of the spatial layout and the convenience of operation. The first vertical guide structure 1044, through the first guide frame 10441 and the first lifting platform 10442 on its vertical guide column, ensures the smooth lifting and lowering of the transverse steel wire bending mechanism 102 corresponding to the C-end and H-end, providing a stable and flexible operating space for loading and unloading steel wire. Multiple first flexible abutment rods 10443 extending from the bottom of the first lifting platform 10442 effectively prevent damage to the steel wire during lifting and lowering, and assist in fixing the transverse steel wire, further protecting product quality. The first longitudinal guide structure 1045 and the second longitudinal guide structure 1046 are respectively slidably connected to the first longitudinal sliding seat 10452 and the second longitudinal sliding seat 10462 on the first longitudinal slide table 10451 and the second longitudinal slide table 10461. This enables the flexible movement of the transverse steel wire bending mechanism 102 corresponding to the D end and the G end, and the B end and the I end, ensuring that the bending mechanisms do not interfere with each other during the bending process, and also providing strong support for the precise positioning of the steel wire.

[0028] like Figure 11 and 12As shown, specifically, the longitudinal wire bending mechanism 103 includes a rotary cylinder 1031 and a second outer turntable 1032 rotatably connected to the output shaft of the rotary cylinder 1031. A second end clamp 1033 is provided on the second outer turntable 1032. The second end clamp 1033 consists of the upper section of the mandrel of the second outer turntable 1032 and a second bending shaft 10331. The reserved gap between the two serves as the clamping space for the end of the longitudinal wire, and the middle section of the second bending shaft 10331 is recessed to form a second annular groove 10332 for engaging the end of the longitudinal wire. Driven by the rotary cylinder 1031, the second outer turntable 1032 can drive the second end clamp 1033 to rotate, thereby realizing the bending operation of the end of the longitudinal wire. This design not only simplifies the operation process but also significantly improves the bending accuracy and efficiency. The special design of the second annular groove 10332 ensures the stability of the longitudinal wire end during the clamping process, avoiding poor bending caused by shaking or misalignment. In addition, the second end clamp 1033 and the first end clamp 1022 have the same structure, which has the advantages of compact structure and small space occupation, making the entire longitudinal wire bending mechanism 103 more flexible and able to adapt to the bending needs of wires of different specifications and lengths.

[0029] from Figure 13 and Figure 14 As can be seen, in specific implementation, the shaping section 2 includes a wire flipping and positioning mechanism 201. Below the wire flipping and positioning mechanism 201, corresponding to end B and end I, are a pulling and shaping mechanism 202. Above the wire flipping and positioning mechanism 201 is a pressing and fixing mechanism 203. The design of the wire flipping and positioning mechanism 201 ensures precise positioning of the wire during the shaping process. Its structure is similar to the wire positioning mechanism 101, except that the automotive seat spring wire, after passing through the bending section 1, needs to be flipped and fixed onto the wire flipping and positioning mechanism 201. The pulling and shaping mechanism 202, through reasonable pulling force and angle, moderately stretches the wire end to adjust its shape and size, ensuring it conforms to design requirements. The pressing and fixing mechanism 203 is responsible for firmly pressing the wire end during the pulling and shaping process, preventing it from falling off or shifting, further consolidating the shaping effect.

[0030] Specifically, the traction and shaping mechanism 202 includes an end clamping groove 2021 and an abutment arm 2022 hinged below the end clamping groove 2021. The end of the abutment arm 2022 is hinged to the piston rod of the traction cylinder 2023. The pressing and fixing mechanism 203 includes a second guide frame 2031 and a second lifting platform 2032 guided and connected to the vertical guide column of the second guide frame 2031. The second lifting platform 2032 is driven by a second vertical cylinder 2033, and multiple second flexible abutment rods 2034 extend vertically downward at the bottom of the second lifting platform 2032 for abutting against the spring steel wire of the car seat.

[0031] In summary, this utility model achieves the goal of simultaneously and precisely bending multiple ends of automotive seat spring steel wires by utilizing a multi-point automatic bending module. This module not only significantly improves production efficiency but also substantially enhances product quality stability. In bending section 1, the module can automatically and accurately complete the preset bending actions of each wire end, eliminating the need for manual operation and thus greatly shortening the production cycle. The shaping section 2 further ensures the shaping effect of the wire ends, making the final product more in line with quality requirements; the transmission structure 1024, composed of a linear drive cylinder 1023, a precision rack 10241, and a backlash-free gear 10242, significantly improves transmission accuracy and response speed. Compared to traditional worm gear drives, this invention effectively shortens the mechanical transmission chain, reduces inertial delay, and significantly shortens the single bending cycle, thereby greatly meeting the demands of high-speed production. The application of the backlash-free gear 10242 effectively eliminates transmission backlash, ensuring the accuracy of the bending angle and improving product quality. Furthermore, the direct drive method of the linear drive cylinder 1023 simplifies the mechanical structure, reduces wear and lubrication maintenance frequency, and further improves production efficiency. In terms of energy consumption, the intermittent working mode of the linear drive cylinder 1023 significantly reduces energy consumption compared to motor drives, and also produces lower noise, meeting green manufacturing standards. The design of the avoidance mechanism 104 fully considers the ease of operation and space utilization in actual production. Through the coordinated action of the first vertical cylinder 1041, the first longitudinal cylinder 1042, and the second longitudinal cylinder 1043, the positions of each transverse wire bending mechanism 102 can be flexibly adjusted, ensuring no interference during bending and providing sufficient operating space for wire loading and unloading, further improving production efficiency.

[0032] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A multi-point automatic bending module for automotive seat spring steel wire, characterized in that: It includes a bending section and a shaping section; the bending section includes a wire positioning mechanism, and a transverse wire bending mechanism and a longitudinal wire bending mechanism arranged around the wire positioning mechanism; the transverse wire bending mechanism is set one-to-one for the end of each transverse wire, and the orientation of each transverse wire bending mechanism matches the bending direction of the corresponding transverse wire end; the longitudinal wire bending mechanism is set one-to-one for the end of each longitudinal wire, and the orientation of each longitudinal wire bending mechanism matches the bending direction of the corresponding longitudinal wire end.

2. The multi-point automatic bending module for automotive seat spring steel wire according to claim 1, characterized in that: The transverse steel wire bending mechanism includes a first outer turntable and a first end clamp disposed on the first outer turntable. The first outer turntable is connected to a linear drive cylinder through a transmission structure. When the linear drive cylinder performs a telescopic action, it can drive the first outer turntable to rotate, so as to achieve bending and forming of the end of the transverse steel wire through the first end clamp.

3. The multi-point automatic bending module for automotive seat spring steel wire according to claim 2, characterized in that: The transmission structure includes a precision rack and a backlash-free gear that mesh with each other. The precision rack is connected to the piston rod of the linear drive cylinder, and the backlash-free gear is coaxially sleeved on the spindle of the first outer turntable.

4. The multi-point automatic bending module for automotive seat spring steel wire according to claim 2, characterized in that: The linear drive cylinder is a high-speed cylinder, and the piston rod extension stroke of the high-speed cylinder is adjustable to adapt to bending requirements.

5. The multi-point automatic bending module for automotive seat spring steel wire according to claim 2 or 3, characterized in that: The first end clamp consists of the upper section of the spindle of the first outer turntable and the first bending shaft. The reserved gap between the two serves as the clamping space for the transverse steel wire end, and the middle section of the first bending shaft is recessed to form a first annular groove for engaging the transverse steel wire end.

6. The multi-point automatic bending module for automotive seat spring steel wire according to claim 1, characterized in that: An obstacle avoidance mechanism is also provided between each of the transverse steel wire bending mechanisms. The obstacle avoidance mechanism is used to form a loading and unloading space for the automotive seat spring steel wire on the one hand, and to avoid mutual interference between the transverse steel wire bending mechanisms on the other hand.

7. The multi-point automatic bending module for automotive seat spring steel wire according to claim 6, characterized in that: The avoidance mechanism includes a first vertical cylinder, a first longitudinal cylinder, and a second longitudinal cylinder. The first vertical cylinder is connected to the transverse wire bending mechanism corresponding to end C and end H through a first vertical guide structure. The first longitudinal cylinder is connected to the transverse wire bending mechanism corresponding to end D and end G through a first longitudinal guide structure. The second longitudinal cylinder is connected to the transverse wire bending mechanism corresponding to end B and end I through a second longitudinal guide structure.

8. The multi-point automatic bending module for automotive seat spring steel wire according to claim 7, characterized in that: The first vertical guide structure includes a first guide frame and a first lifting platform connected to the vertical guide column of the first guide frame. The first lifting platform is connected to the transverse steel wire bending mechanism corresponding to the C end and the H end, and multiple first flexible abutment rods for abutting the car seat spring steel wire extend vertically downward at the bottom of the first lifting platform for a predetermined length. The first longitudinal guide structure includes a first longitudinal slide and a first longitudinal sliding seat slidably connected to the first longitudinal slide. The first longitudinal sliding seat is connected to the transverse steel wire bending mechanism corresponding to the D end and the G end. The second longitudinal guide structure includes a second longitudinal slide and a second longitudinal sliding seat slidably connected to the second longitudinal slide. The second longitudinal sliding seat is connected to the transverse steel wire bending mechanism corresponding to the B end and the I end.

9. The multi-point automatic bending module for automotive seat spring steel wire according to claim 1 or 7, characterized in that: The longitudinal steel wire bending mechanism includes a rotary cylinder and a second outer turntable rotatably connected to the output shaft of the rotary cylinder. A second end clamp is provided on the second outer turntable. The second end clamp consists of the upper section of the mandrel of the second outer turntable and a second bending shaft. The reserved gap between the two serves as the clamping space for the end of the longitudinal steel wire, and the middle section of the second bending shaft is recessed to form a second annular groove for engaging the end of the longitudinal steel wire.

10. The multi-point automatic bending module for automotive seat spring steel wire according to claim 1, characterized in that: The shaping section includes a wire flipping and positioning mechanism. Below the wire flipping and positioning mechanism, corresponding to end B and end I, a traction shaping mechanism is provided. Above the wire flipping and positioning mechanism, a pressing and fixing mechanism is provided.

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