A KAB airbag housing cover bending machine

Abstract

The present invention relates to the technical field of automotive parts manufacturing, and discloses a KAB airbag housing cover bending machine, which includes a main seat plate assembly. A narrow-side bending part and a straight-side bending replacement part are arranged on the main seat plate assembly. The narrow-side bending part includes a shield and a device base seat plate. The device base seat plate is installed on one side of the top of the main seat plate assembly. A cylinder rear support is installed between the shield and the device base seat plate. The structural design of the narrow-side bending part and the straight-side bending replacement part ensures the accuracy and stability of the bending operation. The displacement sensor monitors the positions of the bending head and the bending head replacement part in real time, and precisely controls the bending amount. The bending support and the bending support replacement part bear the reaction force during bending, so that the bending force only acts on each other through the outside of the U-shaped flanging, avoiding unnecessary pressure on parts of the housing other than the bending part, effectively preventing the housing from deforming, ensuring the normal ejection of the airbag, and improving the product safety.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive parts manufacturing, and particularly to a KAB airbag housing cover bending machine. Background Art

[0002] In the field of automotive airbag production, there are a series of technical problems to be solved urgently in the assembly process of KAB airbag housings and covers. These problems limit production efficiency, product quality, and cost control.

[0003] Traditional assembly equipment is often designed for a single product and lacks dedicated components that can be quickly replaced, making it difficult to meet the assembly requirements of various KAB airbags. Once the product model changes, enterprises may need to purchase or retrofit equipment again, which not only consumes a large amount of funds but also causes production stagnation, affecting production progress and enterprise benefits.

[0004] Some assembly equipment does not fully consider the work convenience of operators during design. For example, the height area for picking and placing parts is set unreasonably, and the operating space is narrow, causing workers to need to bend down, turn around, or make unnatural movements frequently when picking and placing KAB airbag workpieces. This increases the labor intensity of workers, is prone to cause physical fatigue and occupational diseases after long-term operation, and also reduces production efficiency.

[0005] During the assembly process of KAB airbag housings and covers, strict requirements are imposed on the bending operation of the housings. When using traditional equipment for bending, it is difficult to accurately control the acting point and magnitude of the bending force, easily causing parts of the housing other than the bent part to bear unnecessary pressure, thereby resulting in housing deformation. Housing deformation may affect the normal ejection of the airbag, reduce product safety, and increase potential safety hazards. Therefore, a KAB airbag housing cover bending machine is proposed to solve the above-mentioned problems. Summary of the Invention

[0006] (I) Technical Problems to be Solved

[0007] Aiming at the deficiencies of the prior art, the present invention provides a KAB airbag housing cover bending machine, which solves the problems that when using traditional equipment for bending, it is difficult to accurately control the acting point and magnitude of the bending force, easily causing parts of the housing other than the bent part to bear unnecessary pressure, thereby resulting in housing deformation, and housing deformation may affect the normal ejection of the airbag and reduce product safety.

[0008] (II) Technical Solutions

[0009] To achieve the above object, the present invention provides the following technical solution: A KAB airbag housing cover bending machine, including a main seat plate assembly, on which a narrow-side bending part and a straight-side bending replacement part are provided. The narrow-side bending part includes a shield and a device base plate. The device base plate is installed on one side of the top of the main seat plate assembly. A cylinder rear support is installed between the shield and the device base plate. Two main cylinders are symmetrically installed on the inner wall of the cylinder rear support. Displacement sensors are installed on both sides of the two cylinder rear supports away from each other. A support seat plate is slidably connected to the bottom inner wall of the cylinder rear support. A bending support member is installed on one side of the top of the support seat plate. The end parts of the inner rods of the two main cylinders are both installed with cylinder piston rod joints. A bending push plate is installed on the two cylinder piston rod joints. An elbow seat plate is installed on the bending push plate. A bending head is installed on the elbow seat plate. The bending support member and the bending head are arranged alternately. A lower guide pair is installed between the device base plate and the cylinder rear support. An upper guide pair is installed in the middle of the inner wall of the cylinder rear support. Support sliding plates are fixedly connected to the middle of the top and the middle of the bottom of the support seat plate. The support seat plate is slidably connected to the lower guide pair and the upper guide pair through the support sliding plates. Limit fixing seats are installed on both sides of the top of the device base plate. Support limit rods are fixedly connected to both sides of the top of the support seat plate. The support seat plate is slidably connected to the two limit fixing seats through the support limit rods. Moving seat plates are installed on both sides of the support sliding plates at the bottom of the support seat plate. Compensation springs are elastically connected between the two moving seat plates and the two limit fixing seats respectively.

[0010] Preferably, L-shaped front supports are installed on both of the two main cylinders. Height locking bolts are threadedly connected to the bottoms of the two L-shaped front supports. Curve guiding plates are provided on both of the two L-shaped front supports. A guiding bolt is installed on each curve guiding plate. Guiding holes corresponding to the guiding bolts are provided on both of the two L-shaped front supports. Each guiding bolt is slidably connected in the corresponding guiding hole. The bottom of the connecting end of the two curve guiding plates contacts the top end of the height locking bolt on the same side.

[0011] Preferably, the number of the narrow-side bending parts is two. The device base plate of the other narrow-side bending part is installed on the other side of the top of the main seat plate assembly. The two narrow-side bending parts are symmetrically arranged with each other.

[0012] Preferably, a straight-side bending replacement part is provided on the other narrow-side bending part. The straight-side bending replacement part includes a push plate replacement part corresponding to the bending push plate, an elbow seat replacement part corresponding to the elbow seat plate, an elbow replacement part corresponding to the bending head, a support seat replacement part corresponding to the support seat plate, a bending support replacement part corresponding to the bending support member, and an L-shaped support replacement part corresponding to the L-shaped front support.

[0013] Preferably, a positioning portion is provided on the main seat plate assembly. The positioning portion includes two support columns, both of which are installed on the top center line of the main seat plate assembly and are symmetrically arranged. Linear guide pairs are installed on one side of the two support columns close to each other. A cover closing mounting seat plate is slidably connected to the two linear guide pairs. A cover closing driving mounting plate is installed on the top of the two support columns. A cover closing pressing cylinder is installed in the middle of the top of the cover closing driving mounting plate. The movable end of the cover closing pressing cylinder movably penetrates the cover closing driving mounting plate and is installed with a cover closing pressing plate. Four pressing adjustment columns are symmetrically installed at the bottom of the cover closing pressing plate. The two ends of the cover closing pressing plate are respectively installed on the two cover closing mounting seat plates.

[0014] Preferably, a tooling portion is provided on the linear guide pair. The tooling portion includes a positioning tooling base, which is installed between the moving ends of the two linear guide pairs. Co-operating adjustment bolts corresponding to the pressing adjustment columns are installed at the tops of both ends of the positioning tooling base. Support adjustment seats are installed at both ends of the positioning tooling base. Roller supports are installed on the two support adjustment seats. Tooling track wheels are installed at the ends of the two roller supports.

[0015] Preferably, a housing portion is provided on the tooling portion. The housing portion includes an airbag assembly housing, which is installed on the positioning tooling base. A support positioning surface is integrally provided on the outer wall of the airbag assembly housing. An inclined mouth side U-shaped flanging is integrally connected to one side of the mouth of the airbag assembly housing. A straight mouth side U-shaped flanging is integrally connected to the other side of the mouth of the airbag assembly housing. A first plugging groove corresponding to the number of pressing heads is provided on the inclined mouth side U-shaped flanging. A first bending surface aligned with the pressing head is provided on the outer wall surface of each first plugging groove.

[0016] Preferably, a second plugging groove corresponding to the number of elbow replacement parts is provided on the straight mouth side U-shaped flanging. A second bending surface aligned with the elbow replacement part is provided on the outer wall surface of each second plugging groove.

[0017] Preferably, a cover plate portion is provided on the housing portion. The cover plate portion includes an airbag assembly cover plate. Wedge-shaped pins corresponding to the number of the first plugging grooves and the second plugging grooves are integrally connected to both sides of the bottom of the airbag assembly cover plate. Each wedge-shaped pin is respectively plugged into the corresponding first plugging groove and the inner wall of the plugging groove. An airbag tearing line is provided in the middle of the airbag assembly cover plate.

[0018] Preferably, a support portion is provided on the main seat plate assembly. The support portion includes four linear bearings. The four linear bearings are installed through the middle of the top of the main seat plate assembly and are symmetrically arranged. Guide posts are slidably connected to the inner walls of the four linear bearings. Limit mounting plates are installed at the bottom ends of the two guide posts on the same side. A lifting positioning seat plate is installed at the top ends of the four guide posts. Limit adjustment bolts are threadedly penetrated through the middle of the two limit mounting plates. The top ends of the two limit adjustment bolts abut against the bottom of the main seat plate assembly. Four spring seats are installed in the middle of the top of the main seat plate assembly. Lifting springs are elastically connected between the four spring seats and the lifting positioning seat plate.

[0019] (III) Beneficial Effects

[0020] Compared with the prior art, the present invention provides a KAB airbag housing cover bending machine, which has the following beneficial effects:

[0021] 1. For this KAB airbag housing cover bending machine, the structural design of the narrow-side bending part and the straight-side bending replacement part is adopted to ensure the accuracy and stability of the bending operation. The displacement sensor monitors the positions of the bending head and the bending head replacement part in real time, accurately controls the bending amount. The bending support and the bending support replacement part bear the reaction force during bending, so that the bending force only acts on each other through the outer side of the U-shaped flanging, avoiding unnecessary pressure on parts of the housing other than the bending part, effectively preventing the housing from deforming, ensuring the normal ejection of the airbag, and improving the product safety.

[0022] 2. For this KAB airbag housing cover bending machine, the optimized operation convenience is adopted. The positioning part, the tooling part and the support part cooperate to optimize the operation experience. The positioning tooling base slides on the linear guide pair and cooperates with the lifting spring to make the positioning tooling float up and down. When loading parts, the positioning tooling is at a higher position under the action of the spring, increasing the space for picking and placing parts, reducing the frequency of unnatural actions such as bending down and turning around when workers pick and place KAB airbag workpieces, reducing the labor intensity, reducing the risk of occupational diseases, and improving the production efficiency.

[0023] 3. For this KAB airbag housing cover bending machine, the high product applicability is adopted. The equipment is provided with special components that can be quickly replaced. That is, by replacing the straight-side bending replacement part and related quickly replaceable parts, it can meet the assembly requirements of various KAB airbags. This design enables enterprises to not need to re-purchase or extensively transform the equipment when facing different product models, reducing the equipment cost, avoiding production stagnation caused by product model changes, and effectively ensuring the production progress and enterprise benefits.

[0024] 4. The KAB airbag housing cover bending machine adopts structures such as a curve guide plate and a guide rail pair to achieve the linkage and precise motion control of components, reducing the use of complex drive mechanisms and lowering the manufacturing cost of the equipment. At the same time, the high product applicability avoids the repeated purchase and renovation costs of the equipment, effectively controlling costs in multiple aspects. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 FIG. is a schematic diagram of the overall structure of a KAB airbag housing cover bending machine proposed by the present invention;

[0026] Figure 2 FIG. is a schematic diagram of the main seat plate assembly structure of a KAB airbag housing cover bending machine proposed by the present invention;

[0027] Figure 3 FIG. is a schematic diagram of the structure of the cover pressing plate for closing the cover of a KAB airbag housing cover bending machine proposed by the present invention;

[0028] Figure 4 FIG. is a schematic diagram of the structure of the positioning tooling base of a KAB airbag housing cover bending machine proposed by the present invention;

[0029] Figure 5 FIG. is a schematic diagram of the lifting and positioning seat plate structure of a KAB airbag housing cover bending machine proposed by the present invention;

[0030] Figure 6 FIG. is a schematic diagram of the structure of the narrow - mouth side bending part of a KAB airbag housing cover bending machine proposed by the present invention;

[0031] Figure 7 FIG. is a side sectional view of the narrow - mouth side bending part of a KAB airbag housing cover bending machine proposed by the present invention;

[0032] Figure 8 FIG. is a schematic diagram of the structure of the straight - mouth side bending replacement part of a KAB airbag housing cover bending machine proposed by the present invention;

[0033] Figure 9 FIG. is a connection diagram of the airbag assembly housing and the airbag assembly cover of a KAB airbag housing cover bending machine proposed by the present invention;

[0034] Figure 10 FIG. is a schematic diagram of the structure of the outer shell part of a KAB airbag housing cover bending machine proposed by the present invention;

[0035] Figure 11 FIG. is a schematic diagram of the structure of the cover part of a KAB airbag housing cover bending machine proposed by the present invention;

[0036] Figure 12This is a side sectional view of the airbag assembly housing of a KAB airbag housing cover bending machine proposed by the present invention.

[0037] In the figure: 1. Main seat plate assembly; 2. Positioning part; 21. Support column; 22. Linear guide pair; 23. Cover closing mounting seat plate; 24. Cover closing drive mounting plate; 25. Cover closing pressing cylinder; 26. Cover closing pressing plate; 27. Pressing adjustment column; 3. Tooling part; 31. Positioning tooling base; 32. Assembly adjustment bolt; 33. Roller bracket; 34. Bracket adjustment seat; 35. Tooling track wheel; 4. Support part; 41. Linear bearing; 42. Guide post; 43. Limit mounting plate; 44. Lifting positioning seat plate; 45. Limit adjustment bolt; 46. Spring seat; 47. Lifting spring; 5. Narrow side bending part; 51. Protective cover; 52. Device base seat plate; 53. Rear cylinder support; 54. Main cylinder; 55. Displacement sensor; 56. Support seat plate; 57. L-shaped front support; 58. Height locking bolt; 59. Curve guide plate; 510. Guide bolt; 511. Bending support piece; 512. Cylinder piston rod joint; 513. Elbow seat plate; 514. Bending head; 515. Bending push plate; 516. Lower guide pair; 517. Upper guide pair; 518. Support sliding plate; 519. Limit fixing seat; 520. Moving seat plate; 521. Compensation spring; 6. Straight side bending replacement part; 61. Push plate replacement piece; 62. Elbow seat replacement piece; 63. Elbow replacement piece; 64. Support seat replacement piece; 65. Bending support replacement piece; 66. L-shaped support replacement piece; 7. Outer shell part; 71. Airbag assembly housing; 72. Support positioning surface; 73. Oblique side U-shaped flanging; 74. Insertion slot 1; 75. Bending surface 1; 76. Straight side U-shaped flanging; 8. Cover plate part; 81. Airbag assembly cover plate; 82. Wedge-shaped pin; 83. Airbag tear line. Detailed implementation manners

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0039] Please refer to Figures 1-12, the present invention provides a technical solution: a KAB airbag housing cover bending machine, including a main seat plate assembly 1, on which a narrow-side bending part 5 and a straight-side bending replacement part 6 are provided. The narrow-side bending part 5 includes a shield 51 and a device base seat plate 52. The device base seat plate 52 is installed on one side of the top of the main seat plate assembly 1. Between the shield 51 and the device base seat plate 52, a cylinder rear support 53 is installed. On the inner wall of the cylinder rear support 53, two main cylinders 54 are symmetrically installed. On one side of the two cylinder rear supports 53 away from each other, a displacement sensor 55 is installed. At the bottom of the inner wall of the cylinder rear support 53, a support seat plate 56 is slidably connected.

[0040] In the present invention, on one side of the top of the support seat plate 56, a bending support 511 is installed. At the end of the inner rod of the two main cylinders 54, a cylinder piston rod joint 512 is installed. On the two cylinder piston rod joints 512, a bending push plate 515 is installed. On the bending push plate 515, an elbow seat plate 513 is installed. On the elbow seat plate 513, a bending head 514 is installed. The bending support 511 and the bending head 514 are arranged in an alternating manner. Between the device base seat plate 52 and the cylinder rear support 53, a lower guide pair 516 is installed. In the middle of the inner wall of the cylinder rear support 53, an upper guide pair 517 is installed. In the middle of the top and bottom of the support seat plate 56, support sliding plates 518 are fixedly connected. The support seat plate 56 is slidably connected to the lower guide pair 516 and the upper guide pair 517 through the support sliding plates 518. On both sides of the top of the device base seat plate 52, limit fixing seats 519 are installed. On both sides of the top of the support seat plate 56, support limit rods are fixedly connected. The support seat plate 56 is slidably connected to the two limit fixing seats 519 through the support limit rods. On both sides of the support sliding plates 518 at the bottom of the support seat plate 56, moving seat plates 520 are installed. Between the two moving seat plates 520 and the two limit fixing seats 519 respectively, a compensation spring 521 is elastically connected.

[0041] On both of the two main cylinders 54, an L-shaped front support 57 is installed. At the bottom of the two L-shaped front supports 57, a height locking bolt 58 is threadedly connected. On the two L-shaped front supports 57, a curve guide plate 59 is provided. On each curve guide plate 59, a guide bolt 510 is installed. On the two L-shaped front supports 57, guide holes corresponding to the guide bolts 510 are provided. Each guide bolt 510 is slidably connected in the corresponding guide hole. At the bottom of the connecting end of the two curve guide plates 59, it contacts the top end of the height locking bolt 58 on the same side.

[0042] In this embodiment, the number of the narrow-side bending parts 5 is two. The device base seat plate 52 of the other narrow-side bending part 5 is installed on the other side of the top of the main seat plate assembly 1. The two narrow-side bending parts 5 are symmetrically arranged with each other.

[0043] Another narrow-side press-bending part 5 is provided with a straight-side press-bending replacement part 6, and the straight-side press-bending replacement part 6 includes a push plate replacement part 61 corresponding to the press-bending push plate 515, an elbow seat replacement part 62 corresponding to the elbow seat plate 513, an elbow replacement part 63 corresponding to the press-bending elbow 514, a support seat replacement part 64 corresponding to the support seat plate 56, a press-bending support replacement part 65 corresponding to the press-bending support part 511, and an L-shaped support replacement part 66 corresponding to the L-shaped front support 57.

[0044] It should be noted that a positioning part 2 is provided on the main seat plate assembly 1. The positioning part 2 includes two support columns 21. Both of the two support columns 21 are installed on the top center line of the main seat plate assembly 1 and are symmetrically arranged. Linear guide pairs 22 are installed on the sides of the two support columns 21 close to each other. A cover closing mounting seat plate 23 is slidably connected to both of the two linear guide pairs 22. A cover closing driving mounting plate 24 is installed on the tops of the two support columns 21. A cover closing pressing cylinder 25 is installed in the middle of the top of the cover closing driving mounting plate 24. The movable end of the cover closing pressing cylinder 25 movably penetrates through the cover closing driving mounting plate 24 and is installed with a cover closing pressing plate 26. Four pressing adjustment columns 27 are symmetrically installed at the bottom of the cover closing pressing plate 26. The two ends of the cover closing pressing plate 26 are respectively installed on the two cover closing mounting seat plates 23.

[0045] A tooling part 3 is provided on the linear guide pair 22. The tooling part 3 includes a positioning tooling base 31. The positioning tooling base 31 is installed between the moving ends of the two linear guide pairs 22. Co-operating adjustment bolts 32 corresponding to the pressing adjustment columns 27 are installed at the tops of both ends of the positioning tooling base 31. Support adjustment seats 34 are installed at both ends of the positioning tooling base 31. Roller supports 33 are installed on both of the two support adjustment seats 34. Tooling path wheels 35 are installed at the ends of both of the two roller supports 33.

[0046] A support part 4 is provided on the main seat plate assembly 1. The support part 4 includes four linear bearings 41. The four linear bearings 41 are installed through the middle of the top of the main seat plate assembly 1 and are symmetrically arranged. Guide columns 42 are slidably connected to the inner walls of the four linear bearings 41. Limit mounting plates 43 are installed at the bottom ends of the two guide columns 42 on the same side. A lifting positioning seat plate 44 is installed at the tops of the four guide columns 42. Limit adjustment bolts 45 are threadedly penetrated through the middle parts of the two limit mounting plates 43. The tops of the two limit adjustment bolts 45 abut against the bottom of the main seat plate assembly 1. Four spring seats 46 are installed in the middle of the top of the main seat plate assembly 1. Lifting springs 47 are elastically connected between the four spring seats 46 and the lifting positioning seat plate 44.

[0047] It should be noted that a housing part 7 is provided on the tooling part 3. The housing part 7 includes an airbag assembly housing 71. The airbag assembly housing 71 is installed on the positioning tooling base 31. A support positioning surface 72 is integrally provided on the outer wall of the airbag assembly housing 71. One side of the opening of the airbag assembly housing 71 is integrally connected with an inclined side U-shaped flanging 73, and the other side of the opening of the airbag assembly housing 71 is integrally connected with a straight side U-shaped flanging 76. The inclined side U-shaped flanging 73 is provided with a first plugging groove 74 corresponding to the number of press bends 514. A first press bending surface 75 aligned with the press bend 514 is provided on the outer wall surface of each first plugging groove 74. A second plugging groove corresponding to the number of elbow replacement parts 63 is provided on the straight side U-shaped flanging 76. A second press bending surface aligned with the elbow replacement part 63 is provided on the outer wall surface of each second plugging groove.

[0048] A cover plate part 8 is provided on the housing part 7. The cover plate part 8 includes an airbag assembly cover plate 81. Two sides of the bottom of the airbag assembly cover plate 81 are respectively integrally connected with a wedge-shaped plugging pin 82 corresponding to the number of the first plugging groove 74 and the second plugging groove. Each wedge-shaped plugging pin 82 is respectively plugged into the corresponding first plugging groove 74 and the inner wall of the plugging groove. An airbag tearing line 83 is provided in the middle of the airbag assembly cover plate 81.

[0049] Working principle: Place the housing of the KAB airbag on the airbag assembly housing 71 of the tooling part 3, and use the positioning tooling base 31 for preliminary positioning. The cover closing and pressing cylinder 25 is started, and its movable end pushes the cover closing and pressing plate 26 to move downward along the linear guide pair 22. The pressing adjustment column 27 at the bottom of the cover closing and pressing plate 26 cooperates with the combined part adjustment bolts 32 at the top of both ends of the positioning tooling base 31 to further adjust the pressing force and position of the workpiece, ensuring the accurate relative position of the housing and the cover plate during the cover closing process. At the same time, the tooling track wheel 35 descends synchronously with the positioning tooling base 31.

[0050] For the narrow side, during the downward movement of the cover closing and pressing plate 26, the tooling track wheel 35 contacts the curve guide plate 59 of the narrow side press bending part 5 and slides along its surface. As the tooling track wheel 35 rolls, the curve guide plate 59 slides in the guide hole of the L-shaped front support 57 through the guide bolt 510. At the same time, the height locking bolt 58 can adjust and lock the height of the curve guide plate 59 to meet the requirements of different products. The outer wall of the airbag assembly housing 71 extrudes the press bending support 511, and the support seat plate 56 slides along the lower guide pair 516 and the upper guide pair 517 through the support slide plate 518. In this process, the compensation spring 521 plays a role in buffering and fine-tuning, ensuring that the press bending support 511 adaptively inserts into the inclined side U-shaped flanging 73 inside the support positioning surface 72 of the airbag assembly housing 71.

[0051] For the straight port side, the bending replacement part 6 on the straight port side can directly replace the corresponding components through installation and disassembly, and is used to adapt to the U-shaped flanging 76 on the straight port side of the airbag assembly housing 71. Moreover, there is no need to install the curve guide plate 59 on the L-shaped support replacement part 66 on this side. Since the opening of the U-shaped flanging 76 on the straight port side is vertically downward, when the housing moves downward as a whole with the closing cover action, the bending support replacement part 65 of the bending replacement part 6 on the straight port side can directly insert into the inner side of the U-shaped opening and staggeringly fit and support the inner side of the positioning surface 72, forming the effect of support and limit. Other components of the bending replacement part 6 on the straight port side, such as the push plate replacement part 61, the elbow seat replacement part 62, the elbow replacement part 63, the support seat replacement part 64, and the L-shaped support replacement part 66, work together with the corresponding components of the narrow port side bending part 5 to ensure the smooth progress of the bending operation on the straight port side.

[0052] When the bending support 511 and the bending support replacement part 65 reach the inner sides of the support surfaces on both sides of the housing and fit respectively, at this time, the lifting spring 47 of the support part 4 is in a compressed state, providing power for the subsequent rising of the positioning tooling. The main cylinder 54 is started, and the piston rod of the main cylinder 54 pushes the bending push plate 515 through the cylinder piston rod joint 512. The bending push plate 515 drives the elbow seat plate 513 and the bending head 514 to move towards the bending surface one 75 of the housing. At the same time, the elbow replacement part 63 on the straight port side also moves towards the bending surface two of the straight port side under the action of the corresponding driving mechanism. During the bending process, the displacement sensor 55 monitors the positions of the bending head 514 and the elbow replacement part 63 in real time to accurately control the bending amount. The bending support 511 and the bending support replacement part 65 bear the reaction force during the bending process, so that the bending force only acts on each other through the outer side of the U-shaped flanging, avoiding unnecessary pressure on the parts of the housing other than the bending part, thus ensuring that the housing does not deform.

[0053] When the bending head 514 and the elbow replacement part 63 bend the outer bending surfaces one 75 and two of the insertion slot one 74 and the insertion slot two, so that the bent part tightly presses the root of the corresponding wedge-shaped pin 82, after the assembly is completed, the main cylinder 54 and the cover closing pressing cylinder 25 retract. Under the action of the compensation spring 521 and the lifting spring 47, the support seat plate 56 and the positioning tooling base 31 return to their initial positions respectively. The bending support 511 and the bending support replacement part 65 are separated from the airbag assembly housing 71, and the cover closing pressing plate 26 rises. At this time, the KAB airbag housing cover assembly that has completed the bending assembly can be taken out, completing one working cycle.

[0054] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent in such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

Claims

1. A KAB airbag housing cover bending machine, comprising a main seat plate assembly (1), characterized in that: The main seat plate assembly (1) is provided with a narrow side bending portion (5) and a straight side bending replacement portion (6); the narrow side bending portion (5) comprises a shield (51) and a device base seat plate (52); the device base seat plate (52) is mounted on one side of the top of the main seat plate assembly (1); a cylinder rear support (53) is mounted between the shield (51) and the device base seat plate (52); two main cylinders (54) are symmetrically mounted on the inner wall of the cylinder rear support (53); and displacement sensors (55) are mounted on the sides of the two cylinder rear supports (53) that are away from each other. The bottom of the inner wall of the cylinder rear support (53) is slidably connected to a support seat plate (56), a bending support member (511) is installed on one side of the top of the support seat plate (56), the inner rod ends of the two main cylinders (54) are both installed with cylinder piston rod joints (512), the two cylinder piston rod joints (512) are installed with bending push plates (515), the bending push plates (515) are installed with an elbow seat plate (513), the elbow seat plate (513) is installed with a bending head (514), and the bending support member (511) and the bending head (514) are arranged alternately; A lower guide rail pair (516) is installed between the device base seat plate (52) and the cylinder rear support (53), an upper guide rail pair (517) is installed in the middle of the inner wall of the cylinder rear support (53), and a support slide plate (518) is fixedly connected to the middle of the top and the middle of the bottom of the support seat plate (56). The support seat plate (56) is slidably connected to the lower guide rail pair (516) and the upper guide rail pair (517) through the support slide plate (518). The top of the device base seat plate (52) is fixedly connected to the lower guide rail pair (516) and the upper guide rail pair (517). Limit fixing seats (519) are installed on both sides, support limit rods are fixedly connected to both sides of the top of the support seat plate (56), the support seat plate (56) is slidably connected to the two limit fixing seats (519) through the support limit rods, and movable seat plates (520) are installed on both sides of the support slide plate (518) at the bottom of the support seat plate (56), and compensation springs (521) are elastically connected between the two movable seat plates (520) and the two limit fixing seats (519).

2. A KAB airbag housing cover bending machine according to claim 1, characterized in that: The two master cylinders (54) are both mounted with an L-shaped front support (57), the bottoms of the two L-shaped front supports (57) are both threadedly connected with a height locking bolt (58), the two L-shaped front supports (57) are both provided with a curved guide plate (59), each of the curved guide plates (59) is mounted with a guide bolt (510), the two L-shaped front supports (57) are both provided with a guide hole corresponding to the guide bolt (510), each of the guide bolts (510) is slidably connected in the corresponding guide hole, and the bottoms of the connection ends of the two curved guide plates (59) are in contact with the top of the height locking bolt (58) on the same side.

3. A KAB airbag housing cover bending machine according to claim 2, characterized in that: There are two narrow-mouth side bending parts (5), and a device base seat plate (52) of another narrow-mouth side bending part (5) is installed on the other side of the top of the main seat plate assembly (1), and the two narrow-mouth side bending parts (5) are arranged symmetrically with each other.

4. A KAB airbag housing cover bending machine according to claim 3, characterized in that: A straight-mouth side bending replacement part (6) is provided on the other narrow-mouth side bending part (5), and the straight-mouth side bending replacement part (6) includes a push plate replacement part (61) corresponding to the bending push plate (515), an elbow seat replacement part (62) corresponding to the elbow seat plate (513), an elbow replacement part (63) corresponding to the bending head (514), a support seat replacement part (64) corresponding to the support seat plate (56), a bending support replacement part (65) corresponding to the bending support part (511), and an L-shaped support replacement part (66) corresponding to the L-shaped front support (57).

5. A KAB airbag housing cover bending machine according to claim 4, characterized in that: The main seat plate assembly (1) is provided with a positioning portion (2), the positioning portion (2) comprising two support columns (21), the two support columns (21) are both mounted on the top center line of the main seat plate assembly (1) and are symmetrically arranged with each other, a linear guide pair (22) is mounted on the side close to each other of the two support columns (21), and a closing cover mounting seat plate (23) is slidably connected to the two linear guide pairs (22), a closing cover drive mounting plate (24) is mounted on the top of the two support columns (21), a closing cover clamping cylinder (25) is mounted in the middle of the top of the closing cover drive mounting plate (24), the movable end of the closing cover clamping cylinder (25) movably penetrates the closing cover drive mounting plate (24) and is mounted with a closing cover clamping plate (26), four clamping adjustment columns (27) are symmetrically mounted on the bottom of the closing cover clamping plate (26), and the two ends of the closing cover clamping plate (26) are respectively mounted on the two closing cover mounting seat plates (23).

6. A KAB airbag housing cover bending machine according to claim 5, characterized in that: A tooling part (3) is provided on the linear guide pair (22), and the tooling part (3) includes a positioning tooling base (31). The positioning tooling base (31) is installed between the movable ends of the two linear guide pairs (22), and the tops of both ends of the positioning tooling base (31) are installed with fitting adjustment bolts (32) corresponding to the clamping adjustment columns (27), and both ends of the positioning tooling base (31) are installed with bracket adjustment seats (34), and the two bracket adjustment seats (34) are installed with roller brackets (33), and the ends of the two roller brackets (33) are installed with tooling track wheels (35).

7. A KAB airbag housing cover bending machine according to claim 6, characterized in that: The tooling part (3) is provided with a shell part (7), the shell part (7) comprising an airbag assembly shell (71), the airbag assembly shell (71) being mounted on a positioning tooling base (31), the outer wall of the airbag assembly shell (71) being integrally provided with a support positioning surface (72), one side of the shell opening of the airbag assembly shell (71) being integrally connected with an oblique side U-shaped flange (73), the other side of the shell opening of the airbag assembly shell (71) being integrally connected with a straight side U-shaped flange (76), the oblique side U-shaped flange (73) being provided with a number of plug-in slots (74) corresponding to the number of the bending heads (514), and the outer wall surface of each of the plug-in slots (74) being provided with a bending surface (75) aligned with the bending head (514).

8. A KAB airbag housing cover bending machine according to claim 7, characterized in that: The straight-mouth-side U-shaped flange (76) is provided with two insertion slots corresponding in number to the elbow replacement part (63), and the outer wall surface of each of the two insertion slots is provided with a second bending surface aligned with the elbow replacement part (63).

9. A KAB airbag housing cover bending machine according to claim 8, characterized in that: The shell portion (7) is provided with a cover portion (8), the cover portion (8) comprising an airbag assembly cover plate (81), the bottom sides of the airbag assembly cover plate (81) are respectively integrally connected with wedge-shaped pins (82) of a number corresponding to the first plug-in slot (74) and the second plug-in slot, each of the wedge-shaped pins (82) is respectively plugged into the corresponding first plug-in slot (74) and the inner wall of the plug-in slot, and an airbag tear line (83) is provided in the middle of the airbag assembly cover plate (81).

10. A KAB airbag housing cover bending machine according to claim 1, characterized in that: The main seat plate assembly (1) is provided with a support portion (4), the support portion (4) comprising four linear bearings (41), the four linear bearings (41) being installed through the middle of the top of the main seat plate assembly (1) and symmetrically arranged with each other, the inner walls of the four linear bearings (41) are slidably connected with guide columns (42), the bottom ends of the two guide columns (42) on the same side are installed with limit mounting plates (43), the top ends of the four guide columns (42) are installed with lifting and positioning seat plates (44), the middle parts of the two limit mounting plates (43) are threadedly penetrated with limit adjustment bolts (45), the top ends of the two limit adjustment bolts (45) are in contact with the bottom of the main seat plate assembly (1), and four spring seats (46) are installed in the middle of the top of the main seat plate assembly (1), and lifting springs (47) are elastically connected between the four spring seats (46) and the lifting and positioning seat plates (44).

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