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

Abstract

The invention discloses a multi-point-position automatic bending module applied to an automobile seat spring steel wire. The multi-point-position automatic bending module comprises a bending section and a shaping section. The bending section comprises a steel wire positioning mechanism, and a transverse steel wire bending mechanism and a longitudinal steel wire bending mechanism which are arranged around the steel wire positioning mechanism; the transverse steel wire bending mechanisms are arranged corresponding to the ends of the transverse steel wires one to one, and the orientation of each transverse steel wire bending mechanism is matched with the bending direction of the end of the corresponding transverse steel wire. The longitudinal steel wire bending mechanisms are arranged corresponding to the ends of the longitudinal steel wires in a one-to-one mode, and the orientation of each longitudinal steel wire bending mechanism is matched with the bending direction of the end of the corresponding longitudinal steel wire. The invention aims to overcome the limitation of the prior art, and provides a module capable of automatically and accurately bending a plurality of ends of an automobile seat spring steel wire at the same time. The steel wire end bending device not only realizes all-directional accurate bending of the steel wire end, but also greatly improves the production efficiency and the product quality.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile seat spring steel wire processing equipment, and in particular relates to a multi-point automatic bending module used for automobile seat spring steel wire. Background Art

[0002] During the production of automotive seat spring steel wire, the ends of the transverse steel wire need to be quickly bent. Currently, most existing bending processes are performed manually or using a single tool. However, these methods have many drawbacks and shortcomings, as shown below:

[0003] ①The production efficiency of manual bending is low;

[0004] ② The single tooling has poor precision and cannot meet the complex and changing bending requirements, resulting in unstable product quality and increasing the difficulty and cost of subsequent processing.

[0005] In light of this, Chinese invention patent application CN202011143689.5 discloses a wire bending mechanism, primarily suitable for bending the two side wires of automotive seat spring wire. This mechanism consists of 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, a turbine, a bending block, an upper mandrel, a fixed copper sleeve, a needle bearing, a lower mandrel, a paddle, a housing top cover, a pull claw, a lower mandrel fixed block, a pressure bearing, a bearing mount, a coupling, a telescopic cylinder, an outer rotating sleeve, and an oil port sealing cap. This solution reduces production costs and improves efficiency.

[0006] However, in the production process of automobile seat spring steel wire, multiple ends need to be bent (including Figure 1 and Figure 2 The ends are labeled (A, B, C, D, E, F, G, H, I, and J), and each has a different bending direction. Using only the wire bending mechanism described above, each end can only be bent one by one, and the bending direction still requires manual judgment and adjustment. This leads to cumbersome operation and a high rate of product defects. Summary of the Invention

[0007] The present invention is dedicated to overcoming the limitations of the prior art and provides a module that can automatically and accurately bend multiple ends of automobile seat spring steel wire at the same time. Through the cleverly designed bending section and shaping section, this module not only achieves all-round and precise bending of the steel wire ends, but also greatly improves production efficiency and product quality. In the bending section, the transverse steel wire bending mechanism and the longitudinal steel wire bending mechanism each perform their respective functions, ensuring that each steel wire end can be bent according to the predetermined direction and angle. At the same time, the setting of the avoidance mechanism avoids mutual interference between the bending mechanisms and provides sufficient space for loading and unloading of the steel wire. In the shaping section, the coordinated work of the steel wire flipping and positioning mechanism, the pulling and shaping mechanism, and the crimping and fixing mechanism further ensures the shaping effect of the steel wire ends, making the final product more in line with quality requirements.

[0008] To achieve the above-mentioned objectives, the present invention first provides a multi-point automatic bending module for automobile seat spring steel wire, which is 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 corresponding to the end of each transverse steel wire, and the direction of each transverse steel wire bending mechanism is consistent with the bending direction of the corresponding transverse steel wire end; the longitudinal steel wire bending mechanism is arranged one-to-one corresponding to the end of each longitudinal steel wire, and the direction of each longitudinal steel wire bending mechanism is consistent with the bending direction of the corresponding longitudinal steel wire end.

[0009] Furthermore, the transverse steel wire bending mechanism includes a first outer turntable and a first end clamp arranged on the first outer turntable. The first outer turntable is connected to the 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 realize the bending and forming of the transverse steel wire end through the first end clamp.

[0010] Furthermore, the transmission structure includes a precision rack and an anti-backlash gear that mesh with each other, the precision rack is connected to the piston rod of the linear drive cylinder, and the anti-backlash gear is coaxially sleeved on the core shaft of the first outer turntable.

[0011] Furthermore, the linear drive cylinder adopts a high-speed cylinder, and the telescopic stroke of the piston rod of the high-speed cylinder is adjustable to adapt to the bending requirements.

[0012] Furthermore, the first end fixture is composed of the upper section of the core shaft 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 sunken to form a first annular groove for engaging the transverse steel wire end.

[0013] Furthermore, an avoidance mechanism is provided between each of the transverse steel wire bending mechanisms. The avoidance mechanism is used to form a loading and unloading space for the automobile seat spring steel wire on the one hand, and to avoid mutual interference between each of the transverse steel wire bending mechanisms on the other hand.

[0014] 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 steel wire bending mechanisms corresponding to the C end and the H end through a first vertical guide structure. The first longitudinal cylinder is connected to the transverse steel wire bending mechanisms corresponding to the D end and the G end through a first longitudinal guide structure. The second longitudinal cylinder is connected to the transverse steel wire bending mechanisms corresponding to the B end and the I end through a second longitudinal guide structure.

[0015] 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 steel wire bending mechanism corresponding to the C end and the H end, and a plurality of first flexible abutment rods for abutting the spring steel wire of the car seat are extended vertically downward at a predetermined length at the bottom of the first lifting platform; 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.

[0016] Furthermore, the longitudinal steel wire bending mechanism includes a rotating cylinder and a second outer turntable rotatably connected to the output shaft of the rotating cylinder, and a second end clamp is provided on the second outer turntable; the second end clamp is composed of the upper section of the core shaft of the second outer turntable and the second bending shaft, and the reserved gap between the two serves as the clamping space for the longitudinal steel wire end, and the middle section of the second bending shaft is recessed to form a second annular groove for engaging the longitudinal steel wire end.

[0017] Furthermore, the shaping section includes a wire flipping and positioning mechanism, a pulling and shaping mechanism is provided below the wire flipping and positioning mechanism corresponding to the B end and the I end, and a crimping and fixing mechanism is provided above the wire flipping and positioning mechanism.

[0018] Compared with the prior art, the present invention has the following remarkable effects:

[0019] (1) By using a multi-point automatic bending module, the goal of simultaneously and precisely bending multiple ends of the car seat spring wire was achieved. This module not only greatly improved production efficiency, but also significantly enhanced the stability of product quality. In the bending section, the module can automatically and accurately complete the preset bending action of each wire end, without the need for manual operation one by one, thereby significantly shortening the production cycle. The setting of the shaping section further ensures the shaping effect of the wire end, making the final product more in line with quality requirements;

[0020] (2) The transmission structure composed of a linear drive cylinder, a precision rack, and an anti-backlash gear significantly improves transmission accuracy and response speed. Compared with the traditional motor worm gear drive method, the present invention effectively shortens the mechanical transmission chain, reduces inertia delay, and significantly shortens the single bending cycle, thereby greatly meeting the high-beat production needs;

[0021] (3) The application of anti-backlash gears effectively eliminates transmission backlash, ensures the accuracy of bending angles, and improves product quality. In addition, the direct drive mode of the linear drive cylinder 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 significantly reduces energy consumption compared to motor drive, and has lower working noise, which meets green manufacturing standards;

[0022] (4) The design of the avoidance mechanism fully considers the operational convenience 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 positions of the transverse wire bending mechanisms can be flexibly adjusted to ensure that they do not interfere with each other during the bending process. At the same time, sufficient operating space is provided for loading and unloading of the wire, further improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is a structural diagram of the car seat spring steel wire product before bending;

[0025] Figure 2 This is a schematic diagram of the structure of the car seat spring steel wire product after bending;

[0026] Figure 3 This is a front view of the multi-point automatic bending module in Example 1;

[0027] Figure 4 This is a side view of the multi-point automatic bending module in Example 1;

[0028] Figure 5 It is a front view of the bending section in the first embodiment;

[0029] Figure 6 It is a side view of the bending section in Example 1;

[0030] Figure 7 It is a published diagram of the transverse bending mechanism and the longitudinal bending mechanism in Example 1;

[0031] Figure 8 Schematic diagram of the structure of the transverse bending mechanism in Example 1 (I);

[0032] Figure 9 Schematic diagram of the structure of the transverse bending mechanism in embodiment 1 (II);

[0033] Figure 10 is a top view of the bending section in Example 1;

[0034] Figure 11 is a three-dimensional diagram of the bending section in Example 1 (1);

[0035] Figure 12 This is a three-dimensional diagram (2) of the bending section in Example 1;

[0036] Figure 13 It is a three-dimensional diagram of the bending section in Example 1 (3);

[0037] Figure 14 yes Figure 13 A partial enlarged view of the middle K section;

[0038] Figure 15 It is a front view of the shaping section in Example 1;

[0039] Figure 16 It is a side view of the shaping section in Example 1;

[0040] Markings in the figure: 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 fixture, 1023-linear drive cylinder, 1024-transmission structure, 10241-precision rack, 10242-anti-backlash gear, 10221-first bending axis, 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-rotating cylinder, 1032-second outer turntable, 1033-second end clamp, 10331-second bending axis, 10332-second annular groove, 201-wire flipping and positioning mechanism, 202-pulling and shaping mechanism, 203-crimping and fixing mechanism, 2021-end clamping groove, 2022-abutment arm, 2023-pulling cylinder, 2031-second guide frame, 2032-second lifting platform, 2033-second vertical cylinder, 2034-second flexible abutment rod. DETAILED DESCRIPTION

[0041] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0042] In the description of the present invention, it should be understood that the terms "length," "width," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, in the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

[0043] Figures 3 to 7The first embodiment of the present invention is shown: a multi-point automatic bending module for automobile seat spring steel wire, including a bending section 1 and a shaping section 2; the bending section 1 includes a steel wire positioning mechanism 101, and a transverse steel wire bending mechanism 102 and a longitudinal steel wire bending mechanism 103 arranged around the steel wire positioning mechanism 101; the transverse steel wire bending mechanism 102 is arranged one-to-one for the end of each transverse steel wire, and the orientation of each transverse steel wire bending mechanism 102 is consistent with the bending direction of the corresponding transverse steel wire end; the longitudinal steel wire bending mechanism 103 is arranged one-to-one for the end of each longitudinal steel wire, and the orientation of each longitudinal steel wire bending mechanism 103 is consistent with the bending direction of the corresponding longitudinal steel wire end. Specifically, the steel wire positioning mechanism 101 includes a magnetic plate, and positioning grooves are provided on the left and right sides of the magnetic plate to adapt to the grid of automobile seat spring steel wires.

[0044] See also Figure 8 and Figure 9 Considering that the device relies on a motor and is driven by a worm gear, the mechanical transmission chain is long, resulting in significant inertia delay and long single bending cycles, making it difficult to meet the demands of high-speed production. Furthermore, backlash in the worm gear meshing results in large bending angle errors, making it impossible to meet the high-precision requirements of automotive seat spring wire. Furthermore, the worm gear suffers from severe wear, requiring frequent lubrication and maintenance, which affects production efficiency. Furthermore, the motor consumes a lot of energy when running continuously, and the worm gear rotates at high speeds, making it noisy and inconsistent with green manufacturing standards.

[0045] In this embodiment, the transverse wire bending mechanism 102 includes a first outer turntable 1021 and a first end fixture 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 is extended or retracted, it drives the first outer turntable 1021 to rotate, thereby bending the transverse wire end through the first end fixture 1022.

[0046] During specific implementation, the transmission structure 1024 includes a precision rack 10241 and an anti-backlash 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 anti-backlash gear 10242 is coaxially sleeved on the core shaft of the first outer turntable 1021. The coordinated use of the precision rack 10241 and the anti-backlash gear 10242 significantly improves the accuracy and stability of the transmission system. The precision rack 10241, with its high-precision tooth design, ensures precise engagement with the anti-backlash gear 10242, thereby effectively reducing the error accumulation during the transmission process. The application of the anti-backlash gear 10242 further eliminates the backlash problem existing in traditional gear transmission, making the entire transmission system more compact and efficient. During 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 moves in an extension and contraction manner, the precision rack 10241 moves smoothly along a fixed direction. At the same time, anti-backlash gear 10242 is coaxially mounted on the core shaft of first outer rotary disk 1021 and rotates as the outer rotary disk rotates. When precision rack 10241 moves, its teeth mesh with those of anti-backlash gear 10242, driving anti-backlash gear 10242 and the outer rotary disk to rotate, thereby precisely bending the wire end through first end fixture 1022.

[0047] Preferably, the linear drive cylinder 1023 utilizes a high-speed cylinder, whose piston rod telescopic stroke is adjustable to suit bending requirements. The high-speed cylinder's rapid response further enhances bending efficiency and ensures a smooth production process. Adjusting the piston rod stroke allows for flexible response to bending requirements of varying wire specifications, demonstrating the flexibility and adaptability of the mechanical design. The synergistic effect of the precision rack 10241 and the anti-backlash gear 10242 not only ensures bending accuracy, but also extends the equipment's service life and reduces maintenance costs.

[0048] like Figure 9As shown, specifically, the first end fixture 1022 is composed of the upper section of the core shaft of the first outer turntable 1021 and the first bending shaft 10221, and the reserved gap between the two serves as the clamping space for the steel wire end. When the steel wire end is clamped for bending, the upper section of the core shaft and the first bending shaft 10221 act together on the transverse steel wire end to ensure that the steel wire remains stable during the force-bearing process. The design of the upper section of the core shaft fully considers the diameter and material of the steel wire to ensure that the clamping force is moderate, which will not damage the surface of the steel wire and can ensure the accuracy of the bending. The design of the first bending shaft 10221 pays more attention to the control of the bending angle and direction. Through precise calculation and adjustment, the bent steel wire end can meet specific shape and size requirements. Furthermore, the middle section of the first bending shaft 10221 is sunken to form a first annular groove 10222 that engages the transverse steel wire end. The design of the first annular groove 10222 enhances the securing effect of the end fixture on the wire end, effectively preventing the transverse wire from slipping or deflecting during the bending process, further improving the accuracy and stability of the bending. The size and shape of the first annular groove 10222 perfectly match the transverse wire end, thereby achieving an optimal clamping effect.

[0049] See also Figure 5 、 Figure 10 、 Figure 11 and Figure 12In actual application scenarios, in order to cope with complex and changing bending requirements and ensure the stability and safety of the production process, an avoidance mechanism 104 is further provided between each of the transverse steel wire bending mechanisms 102. The avoidance mechanism 104 is used to form a loading and unloading space for the car seat spring steel wire on the one hand, and to avoid mutual interference between the transverse steel wire bending mechanisms 102 on the other hand. Specifically, the avoidance 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 steel wire bending mechanisms 102 corresponding to the C and H ends via a first vertical guide structure 1044. The first longitudinal cylinder 1042 is connected to the transverse steel wire bending mechanisms 102 corresponding to the D and G ends via a first longitudinal guide structure 1045. The second longitudinal cylinder 1043 is connected to the transverse steel wire bending mechanisms 102 corresponding to the B and I ends via 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 ensures the smooth lifting and lowering of the C-end and H-end corresponding to the transverse steel wire bending mechanism 102 through the first guide frame 10441 and the first lifting platform 10442 on the vertical guide column, providing a stable and flexible operating space for loading and unloading the steel wire. The multiple first flexible abutment rods 10443 extending from the bottom of the first lifting platform 10442 effectively avoid damage to the steel wire during the lifting process, and can assist in the fixation of the transverse steel wire, further protecting product quality. The first longitudinal guide structure 1045 and the second longitudinal guide structure 1046 are respectively connected to the first longitudinal sliding seat 10452 and the second longitudinal sliding seat 10462 on the first longitudinal slide 10451 and the second longitudinal slide 10461 through sliding, thereby realizing the flexible movement of the D end and the G end, the B end and the I end corresponding to the transverse wire bending mechanism 102, 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.

[0050] like Figure 13 and 14As shown, specifically, the longitudinal steel 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, and a second end fixture 1033 is provided on the second outer turntable 1032; the second end fixture 1033 is composed of the upper section of the core shaft of the second outer turntable 1032 and the second bending shaft 10331, and the reserved gap between the two serves as the clamping space for the longitudinal steel wire end, and the middle section of the second bending shaft 10331 is recessed to form a second annular groove 10332 for engaging the longitudinal steel wire end. Driven by the rotary cylinder 1031, the second outer turntable 1032 can drive the second end fixture 1033 to rotate, thereby realizing the bending operation of the longitudinal steel wire end. This design not only simplifies the operation process, but also significantly improves the accuracy and efficiency of bending. The special design of the second annular groove 10332 ensures the stability of the longitudinal wire end during the engagement process, preventing poor bending due to shaking or misalignment. Furthermore, the second end fixture 1033 has the same structure as the first end fixture 1022, resulting in a compact structure and a small footprint. This makes the entire longitudinal wire bending mechanism 103 more flexible and adaptable to the bending needs of wires of different specifications and lengths.

[0051] from Figure 15 and Figure 16 It can be seen that during specific implementation, the shaping section 2 includes a wire flipping and positioning mechanism 201, a pulling and shaping mechanism 202 is provided below the wire flipping and positioning mechanism 201 corresponding to the B end and the I end, and a crimping and fixing mechanism 203 is provided above the wire flipping and positioning mechanism 201. The design of the wire flipping and positioning mechanism 201 ensures the precise positioning of the wire during the shaping process. Its structure is similar to that of the wire positioning mechanism 101, except that the car seat spring wire needs to be buckled on the wire flipping and positioning mechanism 201 after passing through the bending section 1 to achieve fixation. The pulling and shaping mechanism 202 uses reasonable pulling force and angle to moderately stretch the wire end to adjust its shape and size to ensure that it meets the design requirements. The crimping and fixing mechanism 203 is responsible for firmly crimping the wire end during the pulling and shaping process to prevent it from falling off and shifting, further consolidating the shaping effect.

[0052] Specifically, the pulling and shaping mechanism 202 includes an end clamping slot 2021 and an abutting arm 2022 hingedly connected below the end clamping slot 2021. The distal end of the abutting arm 2022 is hingedly connected to the piston rod of the pulling cylinder 2023. The crimping 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. A plurality of second flexible abutting rods 2034 extend vertically downward at a predetermined length from the bottom of the second lifting platform 2032 for abutting the spring steel wire of the car seat.

[0053] In summary, the present invention achieves the goal of simultaneously and precisely bending multiple ends of automobile seat spring wires by utilizing a multi-point automatic bending module. This module not only greatly improves production efficiency, but also significantly enhances the stability of product quality. In the bending section 1, the module can automatically and accurately complete the preset bending action of each wire end, without the need for manual operation one by one, thereby significantly shortening the production cycle. The setting of the shaping section 2 further ensures the shaping effect of the wire ends, making the final product more in line with the quality requirements; the transmission structure 1024 composed of the linear drive cylinder 1023, the precision rack 10241 and the anti-backlash gear 10242 significantly improves the transmission accuracy and response speed. Compared with the traditional motor worm gear drive method, the present invention effectively shortens the mechanical transmission chain, reduces inertia delay, and significantly shortens the single bending cycle, thereby greatly meeting the high-beat production needs; the application of the anti-backlash gear 10242 effectively eliminates the transmission backlash, ensures the accuracy of the bending angle, and improves product quality. In addition, the direct drive mode 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 drive, and has lower working noise, which meets green manufacturing standards; the design of the avoidance mechanism 104 fully considers the operational convenience 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 position of each transverse steel wire bending mechanism 102 can be flexibly adjusted to ensure that they do not interfere with each other during the bending process. At the same time, it also provides sufficient operating space for loading and unloading the steel wire, further improving production efficiency.

[0054] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of the rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. A multi-point automatic bending module for automobile seat spring steel wire, characterized by: 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 in a one-to-one correspondence with the end of each transverse steel wire, and the direction of each transverse steel wire bending mechanism is consistent with the bending direction of the corresponding transverse steel wire end; the longitudinal steel wire bending mechanism is arranged in a one-to-one correspondence with the end of each longitudinal steel wire, and the direction of each longitudinal steel wire bending mechanism is consistent with the bending direction of the corresponding longitudinal steel wire end.

2. The multi-point automatic bending module for automobile 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 arranged on the first outer turntable. The first outer turntable is connected to the 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 realize the bending and forming of the transverse steel wire end through the first end clamp.

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

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

5. The multi-point automatic bending module for automobile seat spring steel wire according to claims 1-3, characterized in that: The first end fixture is composed of the upper section of the core shaft 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 sunken to form a first annular groove for engaging the transverse steel wire end.

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

7. The multi-point automatic bending module for automobile 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 steel wire bending mechanisms corresponding to the C end and the H end through a first vertical guide structure. The first longitudinal cylinder is connected to the transverse steel wire bending mechanisms corresponding to the D end and the G end through a first longitudinal guide structure. The second longitudinal cylinder is connected to the transverse steel wire bending mechanisms corresponding to the B end and the I end through a second longitudinal guide structure.

8. The multi-point automatic bending module for automobile 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 a plurality of first flexible abutment rods for abutting the spring steel wire of the car seat are extended vertically downward at a predetermined length at the bottom of the first lifting platform; 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 automobile 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, and a second end clamp is provided on the second outer turntable; the second end clamp is composed of the upper section of the core shaft of the second outer turntable and the second bending shaft, and the reserved gap between the two serves as the clamping space for the longitudinal steel wire end, and the middle section of the second bending shaft is sunken to form a second annular groove for engaging the longitudinal steel wire end.

10. The multi-point automatic bending module for automobile seat spring steel wire according to claim 1, characterized in that: The shaping section includes a steel wire flipping and positioning mechanism, a pulling and shaping mechanism is provided below the steel wire flipping and positioning mechanism corresponding to the B end and the I end, and a crimping and fixing mechanism is provided above the steel wire flipping and positioning mechanism.

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