A production apparatus for automotive steel hinges and steel hinge locking screws.

Abstract

This invention provides a production apparatus for automotive steel hinges and steel hinge locking screws, including a support base, a metal block, a cutting mechanism, a drilling mechanism, and a limiting mechanism. The support base includes a first support portion and a second support portion spaced apart. The cutting mechanism includes a first fixed platform and a cutting assembly slidably connected to the first fixed platform. The limiting mechanism includes a second fixed platform, a first extrusion plate and a second extrusion plate slidably connected to the second fixed platform, a third extrusion plate located on the side of the second extrusion plate away from the first extrusion plate, a first elastic element connecting the first and second extrusion plates, and a second elastic element connecting the second and third extrusion plates. The first extrusion plate is located on the side of the second extrusion plate away from the support base. The drilling mechanism includes a third fixed platform, a rotary table rotatably connected to the third fixed platform, and a drilling assembly disposed on the rotary table. This invention can improve the precision of door hinges and bolt holes during production and reduce abnormal noises generated during vehicle operation.

Description

Technical Field

[0001] This invention relates to the field of automotive parts manufacturing and processing technology, and in particular to a production device for automotive steel hinges and steel hinge locking screws. Background Technology

[0002] Car door hinges have two basic functions: first, to connect the car door to the car body and ensure and maintain the position of the car door relative to the car body; and second, to ensure and facilitate the opening and closing of the car door.

[0003] The first basic function of a car door hinge is to connect the car door to the car body and ensure and maintain the position of the car door relative to the car body. This requires that the mounting surfaces of the car door hinge, the car door, and the car body must be flat. If the car door hinge is connected by bolts, the relative dimensions between the bolt mounting holes of the car body and the car door must be consistent and stable.

[0004] The most important factor affecting the stability of the connection between door hinges and automobiles lies in the manufacturing process of the door hinges and steel hinge locking screws. Current manufacturing processes for door hinges and steel hinge locking screws have the following problems: 1. Door hinges are typically manufactured by cutting a metal block into several hinge pieces using a cutting machine. While the cutting machine is working on the metal block, a limiting mechanism is needed to press and fix the metal block to prevent deviation. When pushing the metal block forward to cut the next hinge piece, the limiting mechanism needs to move away from the hinge. At the moment of unloading from the limiting mechanism, the metal block is slightly pulled out by the limiting mechanism, resulting in a minute movement that affects the dimensions of the door hinge. 1. Small deviations causing misalignment between the door hinge and the vehicle body may result in abnormal noises during driving, affecting the vehicle's premium feel. 2. Door hinges require through holes for inserting steel hinge locking screws. During the unloading moment of the limiting mechanism, the metal block is slightly pulled out by the limiting mechanism, resulting in a slight movement. This causes a misalignment between the door hinge size and the bolt mounting hole, which may also lead to abnormal noises during driving. 3. Door hinges, bolt mounting holes, and steel hinge locking screws are typically manufactured separately through at least three workstations, requiring manual or conveyor belt transfer of workpieces, leading to reduced production efficiency. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the purpose of this invention is to provide a production device for automotive steel hinges and steel hinge locking screws, which aims to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0007] A production apparatus for automotive steel hinges and steel hinge locking screws includes a support base, a metal block slidably connected to the support base, a cutting mechanism for cutting the metal block, a drilling mechanism for drilling bolt holes, and a limiting mechanism for pressing the metal block. The support base includes a first support portion and a second support portion spaced apart, with a cutting gap between the first and second support portions. The cutting mechanism includes a first fixed platform and a cutting assembly slidably connected to the first fixed platform. The cutting assembly moves along the cutting gap to cut the metal block. The limiting mechanism includes a second fixed platform, a first pressing plate and a second pressing plate slidably connected to the second fixed platform, a third pressing plate located on the side of the second pressing plate away from the first pressing plate, a first elastic element connecting the first pressing plate and the second pressing plate, and a connecting... The second elastic element is connected to the second extrusion plate and the third extrusion plate. The first extrusion plate is located on the side of the second extrusion plate away from the bearing seat. The drilling mechanism includes a third fixed platform, a rotary platform rotatably connected to the third fixed platform, and a drilling assembly disposed on the rotary platform. The production device for automotive steel hinges and steel hinge locking screws also includes a rolling mechanism for manufacturing bolts. The rolling mechanism includes a fixed first rolling plate, a second rolling plate that moves relative to the first rolling plate, and a driving assembly that drives the second rolling plate to reciprocate. The opposite sides of the first rolling plate and the second rolling plate are provided with a flower-shaped head rolling structure, a thread rolling structure, and a conical rolling structure from top to bottom. The flower-shaped head rolling structure includes multiple rolling blocks, which gradually increase in size according to the forward movement direction of the second rolling plate.

[0008] According to one aspect of the above technical solution, a first linkage mechanism is provided between the cutting mechanism and the limiting mechanism. The first linkage mechanism includes a lead screw, a first nut and a second nut respectively disposed at both ends of the lead screw, and a first motor for driving the lead screw to rotate. The lead screw has a first thread and a second thread arranged in opposite directions. The first nut is disposed at the first thread, and the second nut is disposed at the second thread. The first nut is connected to the cutting assembly, and the second nut is connected to the first extrusion plate.

[0009] According to one aspect of the above technical solution, a second linkage mechanism is provided between the punching mechanism and the limiting mechanism. The second linkage mechanism includes a first rotating shaft fixedly connected to the rotating table, a second rotating shaft disposed below the third fixed table, a third rotating shaft connected to the second rotating shaft, a gear sleeved on the second rotating shaft, a spur gear sleeved on the first rotating shaft, a fourth rotating shaft rotatably connected to the first extrusion plate, and a connecting rod with its two ends respectively hinged to the third rotating shaft and the fourth rotating shaft.

[0010] According to one aspect of the above technical solution, the cutting assembly includes a bearing seat slidably connected to the first fixed platform, a fifth rotating shaft rotatably disposed on the bearing seat, a cutting wheel fixedly connected to the fifth rotating shaft, and a second motor driving the fifth rotating shaft to rotate.

[0011] According to one aspect of the above technical solution, the first nut and the bearing seat are fixedly connected by a first connector, the first connector is partially located inside the first fixed platform, and the first fixed platform is respectively provided with a first slide groove and a second slide groove for the first connector to slide.

[0012] According to one aspect of the above technical solution, the elastic force of the first elastic element is greater than the elastic force of the second elastic element.

[0013] According to one aspect of the above technical solution, the second nut and the first extrusion plate are fixedly connected by a second connector, the second connector being partially located inside the second fixed platform, and the second fixed platform is respectively provided with a third slide groove and a fourth slide groove for the second connector to slide.

[0014] According to one aspect of the above technical solution, a slider that slides along the third groove is provided below the second extrusion block.

[0015] According to one aspect of the above technical solution, the drilling assembly includes a drill rod disposed on the rotary table and a third motor disposed inside the rotary table. The third motor is used to drive the drill rod to rotate, and the first support part and the second support part are provided with grooves that match the shape of the metal block.

[0016] According to one aspect of the above technical solution, the production device for automotive steel hinges and steel hinge locking screws further includes a conveyor belt and a toggle assembly located at the end points of the rolling mechanism and the drilling mechanism. The toggle assembly includes a toggle plate and a rotary motor that drives the toggle plate to rotate. The drive assembly includes a flywheel, a connecting rod, and a stepper motor that drives the flywheel to rotate. One end of the connecting rod is hinged to the second rolling plate, and the other end of the connecting rod is hinged to the non-axial part of the flywheel.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] A third extrusion plate, a second extrusion plate, and a first extrusion plate are sequentially arranged outward from the self-supporting base. A first elastic element is placed between the first and second extrusion plates, and a second elastic element is placed between the second and third extrusion plates. The third extrusion plate always abuts against the metal block, ensuring that the second elastic element remains elastic. When the metal block is moved, the compression action of the third extrusion plate prevents it from shifting, thus improving dimensional accuracy. Since the door hinge cut from the metal block has two small slots, when the cutting mechanism cuts along the slots, it controls the movement of the first extrusion plate, causing the second elastic element to be compressed further, thus enhancing the limiting effect on the metal block. When the cutting assembly reaches the furthest point of the slots, the second elastic element stops compressing. When the cutting mechanism cuts a complete door hinge piece along the slots, it controls the movement of the first extrusion plate, causing the second elastic element to be compressed further. When the second elastic element is no longer compressed, the first elastic element compresses, bringing the first and second extrusion plates closer together and providing stronger support to the metal block. The squeezing pressure enhances the limiting effect until the door hinge is completely cut off. As the cutting component retracts and the metal block is pushed, it touches the drilling component, causing it to drill a hole in the metal block. With each step the metal block is pushed, the bolt hole deepens until the door hinge is completely cut off, piercing the bolt hole. Then, the rotary table rotates, causing the drilling component to rotate the cut door hinge to the unloading station. The bolt hole is removed, and the steel hinge locking screw is installed, completing the production of the automotive steel hinge. Finally, a rolling mechanism is set up to place the steel hinge locking screw in the first... Between the first and second rolling plates, a drive assembly drives the second rolling plate to reciprocate relative to the first rolling plate to produce steel hinge locking screws. Specifically, when the steel hinge locking screw enters between the first and second rolling plates, the second rolling plate drives the steel hinge locking screw forward. The middle part of the steel hinge locking screw will be threaded through a thread rolling structure, the lower part of the steel hinge locking screw will be rolled into a conical bottom through a conical rolling structure, and the upper part of the steel hinge locking screw will be rolled into a flower head through a flower head rolling structure, thus completing the production of the steel hinge locking screw. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the production device for automotive steel hinges and steel hinge locking screws in an embodiment of the present invention;

[0020] Figure 2 for Figure 1 Schematic diagram of the structure at the bearing seat;

[0021] Figure 3 for Figure 1 Schematic diagram of the structure at the cutting mechanism;

[0022] Figure 4 for Figure 1 Schematic diagram of the structure at the middle limit mechanism;

[0023] Figure 5 for Figure 1 Schematic diagram of the structure at the punching mechanism;

[0024] Figure 6 for Figure 1 Exploded view of the structure at the drilling mechanism;

[0025] Figure 7 for Figure 1 A schematic diagram of the first and second linkage mechanisms from a first-view perspective;

[0026] Figure 8 for Figure 1 A schematic diagram of the first and second linkage mechanisms from a second perspective;

[0027] Figure 9 for Figure 1 A schematic diagram of a door hinge piece cut from a metal block;

[0028] Figure 10 for Figure 1 Schematic diagram of the structure at the middle conveyor belt;

[0029] Figure 11 for Figure 1 Schematic diagram of the structure at the intermediate compaction mechanism;

[0030] Figure 12 This is a schematic diagram of the steel hinge locking screw of the present invention;

[0031] Explanation of key component symbols:

[0032]

[0033]

[0034] The following detailed description, in conjunction with the accompanying drawings, will further illustrate the present invention. Detailed Implementation

[0035] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Several embodiments of the invention are illustrated in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

[0036] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0038] Please see Figures 1 to 12The diagram illustrates a production apparatus for automotive steel hinges and steel hinge locking screws according to an embodiment of the present invention. It includes a support base 10, a metal block 80 slidably connected to the support base 10, a cutting mechanism 30 for cutting the metal block 80, a drilling mechanism 50 for drilling bolt holes 81, and a limiting mechanism 40 for pressing the metal block 80. The support base 10 includes a first support portion 11 and a second support portion 12 spaced apart, with a cutting gap 14 between the first support portion 11 and the second support portion 12. The cutting mechanism 30 includes a first fixed platform 31 and a cutting assembly slidably connected to the first fixed platform 31. The cutting assembly moves along the cutting gap 14 to cut the metal block 80. The limiting mechanism 40 includes a second fixed platform 41, a first pressing plate 44 and a second pressing plate 45 slidably connected to the second fixed platform 41, a third pressing plate 46 located on the side of the second pressing plate 45 away from the first pressing plate 44, and a connection between the first pressing plate 44 and the second pressing plate 45. The device includes a first elastic element 47 and a second elastic element 48 connecting the second extrusion plate 45 and the third extrusion plate 46. The first extrusion plate 44 is located on the side of the second extrusion plate 45 away from the bearing seat 10. The drilling mechanism 50 includes a third fixed platform 51, a rotating platform 52 rotatably connected to the third fixed platform 51, and a drilling assembly disposed on the rotating platform 52. The production device for automotive steel hinges and steel hinge locking screws also includes a rolling mechanism 90 for manufacturing bolts. The rolling mechanism 90 includes a first rolling plate 94 fixedly disposed, a second rolling plate 95 moving relative to the first rolling plate 94, and a driving assembly for driving the second rolling plate 95 to reciprocate. The opposite sides of the first rolling plate 94 and the second rolling plate 95 are provided with a flower-shaped head rolling structure 96, a thread rolling structure 97, and a conical rolling structure 98 from top to bottom. The flower-shaped head rolling structure 96 includes a plurality of rolling blocks 99, which gradually increase in size according to the forward movement direction of the second rolling plate 95.

[0039] Understandably, this invention sequentially arranges a third pressing plate 46, a second pressing plate 45, and a first pressing plate 44 outward from the support base 10. A first elastic element 47 is provided between the first pressing plate 44 and the second pressing plate 45, and a second elastic element 48 is provided between the second pressing plate 45 and the third pressing plate 46. The third pressing plate 46 always abuts against the metal block 80, so that the second elastic element 48 always maintains an elastic state. When the pushing mechanism 20 pushes the metal block 80 to move, the metal block 80 will not move slightly under the squeezing action of the third pressing plate 46, thereby improving dimensional accuracy. Because the door hinge cut from the metal block 80 has… Two small slots 82. When the cutting mechanism 30 cuts the small slots 82 of the door hinge along the cutting gap 14, it controls the first pressing plate 44 to move, thereby first compressing the second elastic element 48 more, improving the limiting effect on the metal block 80. When the cutting assembly moves to the farthest distance of the small slots 82, the second elastic element 48 will no longer be compressed. When the cutting mechanism 30 cuts a complete door hinge piece along the cutting gap 14, it controls the first pressing plate 44 to move, thereby first compressing the second elastic element 48 more. When the second elastic element 48 is no longer compressed, the first elastic element 47 will be compressed, causing the first pressing plate 44 and the second pressing plate 47 to move. As plate 45 approaches, it provides stronger compressive force to metal block 80, enhancing its limiting effect until the door hinge is completely cut off. During the retraction of the cutting component and the pushing of metal block 80, it contacts the drilling component, causing it to drill a hole in the metal block 80. With each step the metal block 80 is pushed, the bolt hole 81 deepens further until the door hinge is completely cut off, piercing the bolt hole 81. Then, the rotary table 52 is rotated, causing the drilling component to rotate the cut-off door hinge to the unloading station (not shown in the figure). The bolt hole 81 is removed, and the steel hinge locking screw is installed, completing the production of the automotive steel hinge. Finally, the steel hinge locking screw is removed by a rolling mechanism 90. The screw is placed between the first rolling plate 94 and the second rolling plate 95. The second rolling plate 95 is driven by the drive assembly to reciprocate relative to the first rolling plate 94 to produce the steel hinge locking screw. Specifically, when the steel hinge locking screw enters between the first rolling plate 94 and the second rolling plate 95, the second rolling plate 95 drives the steel hinge locking screw to move forward. The middle part of the steel hinge locking screw will be rolled into a thread 122 by the thread rolling structure 97, the lower part of the steel hinge locking screw will be rolled into a conical bottom end 123 by the conical rolling structure 98, and the upper part of the steel hinge locking screw will be rolled into a flower head 121 by the flower head rolling structure 96, thus completing the production of the steel hinge locking screw.

[0040] It should be noted that the elastic force of the first elastic element 47 is greater than that of the second elastic element 48, causing the second elastic element 48 to compress first.

[0041] Specifically, in this embodiment, a first linkage mechanism 60 is provided between the cutting mechanism 30 and the limiting mechanism 40. The first linkage mechanism 60 includes a lead screw 74, a first nut 76 and a second nut 73 respectively disposed at both ends of the lead screw 74, and a first motor 75 for driving the lead screw 74 to rotate. The lead screw 74 has a first thread 741 and a second thread 742 arranged in opposite directions. The first nut 76 is disposed at the first thread 741, and the second nut 73 is disposed at the second thread 742. The first nut 76 is connected to the cutting assembly, and the second nut 73 is connected to the first extrusion plate 44.

[0042] Understandably, the first motor 75 drives the lead screw 74 to rotate, causing the first nut 76 and the second nut 73 to move relative to each other. When the cutting assembly is cutting the metal block 80, the first pressing plate 44 will also move toward the metal block 80 to press the metal block 80. The deeper the cutting assembly moves, the deeper the first pressing plate 44 presses, so as to achieve adaptive adjustment of the limiting function.

[0043] Furthermore, a second linkage mechanism 70 is provided between the punching mechanism 50 and the limiting mechanism 40. The second linkage mechanism 70 includes a first rotating shaft 56 fixedly connected to the rotating table 52, a second rotating shaft 54 ​​located below the third fixed table 51, a third rotating shaft 55 connected to the second rotating shaft 54, a missing gear 58 sleeved on the second rotating shaft 54, a spur gear 57 sleeved on the first rotating shaft 56, a fourth rotating shaft 72 rotatably connected to the first extrusion plate 44, and a connecting rod 71 with both ends hinged to the third rotating shaft 55 and the fourth rotating shaft 72 respectively.

[0044] Understandably, when the first pressing plate 44 moves, it will drive the connecting rod 71 to move, causing the connecting rod 71 to drive the third rotating shaft 55 to rotate around the second rotating shaft 54 ​​within a limited range, which in turn drives the missing gear 58 to rotate. By adjusting the precision of the first linkage mechanism 60, after the cutting component completely cuts out a door hinge, the corresponding position of the first nut 76 corresponds to the position of the second nut 73. When the cutting component continues to move a certain distance toward the limiting mechanism 40, the first pressing plate 44 continues to move, causing the connecting rod 71 to drive the third rotating shaft 55 to rotate around the second rotating shaft 54 ​​by a certain angle. At this time, the missing gear 58 contacts the spur gear 57, causing the first rotating shaft 56 to rotate together with the rotating table 52. The rotating table 52 drives the drilling component to rotate, so that the cut door hinge can be removed through the unloading station to install the steel hinge locking screw. When the lead screw 74 rotates and drives the cutting component back to its original position, the drilling component and the first pressing plate 44 will also reset.

[0045] Furthermore, the cutting assembly includes a bearing seat 35 slidably connected to the first fixed platform 31, a fifth rotating shaft 36 rotatably mounted on the bearing seat 35, a cutting wheel 37 fixedly connected to the fifth rotating shaft 36, and a second motor 34 driving the fifth rotating shaft 36 to rotate; the first nut 76 and the bearing seat 35 are fixedly connected by a first connecting member 77, part of which is located inside the first fixed platform 31, and the first fixed platform 31 is provided with a first sliding groove 32 and a second sliding groove 33 for the first connecting member 77 to slide; the second nut 73 and the first extrusion plate 44 are fixedly connected by a second connecting member 78, part of which is located inside the second fixed platform 41, and the second fixed platform 41 is provided with a third sliding groove 42 and a fourth sliding groove 43 for the second connecting member 78 to slide; a slider that slides along the third sliding groove 42 is provided below the second extrusion block.

[0046] Understandably, when the first nut 76 moves the bearing seat 35, the cutting wheel 37 can be driven to rotate by the second motor 34 to cut the metal block 80. The first connector 77 and the second connector 78 are located inside the first fixed platform 31 and the second fixed platform 41, respectively. The upper end of the first connector 77 slides along the first slide groove 32, and the side end of the first connector 77 slides along the second slide groove 33. The upper end of the second connector 78 slides along the third slide groove 42, and the side end of the second connector 78 slides along the fourth slide groove 43. The second extrusion block also slides along the third slide groove 42 via the slider (not shown in the figure).

[0047] Furthermore, the drilling assembly includes a drill rod 53 disposed on the rotary table 52 and a third motor disposed inside the rotary table 52, the third motor being used to drive the drill rod 53 to rotate.

[0048] Understandably, when the pushing mechanism 20 moves the metal block 80, the drill rod 53 can be driven to rotate by the third motor to drill the metal block 80. Due to the limiting effect of the limiting mechanism 40, the position of the metal block 80 is more stable during drilling, thereby improving the dimensional accuracy of the bolt hole 81.

[0049] Furthermore, the first support portion 11 and the second support portion 12 are provided with grooves 13 that match the shape of the metal block 80.

[0050] Understandably, by setting a groove 13 that matches the shape of the metal block 80, the positional stability during the movement can be improved when the pushing mechanism 20 moves the metal block 80, thereby improving the dimensional accuracy of the door hinge.

[0051] Furthermore, the production device for automotive steel hinges and steel hinge locking screws also includes a conveyor belt 110 and a toggle assembly 100 located at the end points of the rolling mechanism 90 and the drilling mechanism 50. The toggle assembly 100 includes a toggle plate 101 and a rotary motor 102 that drives the toggle plate 101 to rotate. The drive assembly includes a flywheel 91, a connecting rod 93, and a stepper motor 92 that drives the flywheel 91 to rotate. One end of the connecting rod 93 is hinged to the second rolling plate 95, and the other end of the connecting rod 93 is hinged to the non-axial part of the flywheel 91.

[0052] Understandably, the drilling mechanism 50 will convey the steel hinge to the conveyor belt 110, and then the rotary motor 102 will drive the actuating plate 101 to rotate, moving the steel hinge on the drill rod 53 onto the conveyor belt 110. At the same time, the produced steel hinge locking screw will also fall onto the conveyor belt 110. The steel hinge and the steel hinge locking screw can be conveyed to the assembly station for assembly at the same time, which greatly improves production efficiency.

[0053] In summary, the automotive steel hinge and steel hinge locking screw production device described in the above embodiments of the present invention can improve the precision of door hinges and bolt holes during the production process and reduce abnormal noises generated during vehicle operation.

[0054] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0055] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. An automobile profile steel hinge and steel hinge locking screw production device, characterized in that, The device comprises a bearing seat, a metal block in sliding connection with the bearing seat, a cutting mechanism for cutting the metal block, a punching mechanism for punching a bolt hole, and a limiting mechanism for extruding the metal block. The bearing seat comprises a first bearing part and a second bearing part arranged at intervals, and a cutting gap between the first bearing part and the second bearing part. The cutting mechanism comprises a first fixed table and a cutting assembly in sliding connection with the first fixed table. The cutting assembly moves along the cutting gap to cut the metal block. The limiting mechanism comprises a second fixed table, a first extruding plate and a second extruding plate in sliding connection with the second fixed table, a third extruding plate located on the side of the second extruding plate away from the first extruding plate, a first elastic member connecting the first extruding plate and the second extruding plate, and a second elastic member connecting the second extruding plate and the third extruding plate. The first extruding plate is located on the side of the second extruding plate away from the bearing seat. The punching mechanism comprises a third fixed table, a rotating table in rotary connection with the third fixed table, and a punching assembly arranged on the rotating table. The device for producing automobile steel hinge and steel hinge locking screw further comprises a rolling mechanism for manufacturing a bolt. The rolling mechanism comprises a first rolling plate fixedly arranged, a second rolling plate moving relative to the first rolling plate, and a driving assembly driving the second rolling plate to move reciprocally. The opposite side of the first rolling plate and the second rolling plate is sequentially provided from top to bottom with a pattern head rolling structure, a thread rolling structure, and a tapered rolling structure. The pattern head rolling structure comprises a plurality of rolling blocks. The plurality of rolling blocks gradually increase according to the forward movement direction of the second rolling plate. A first linkage mechanism is arranged between the cutting mechanism and the limiting mechanism. The first linkage mechanism comprises a screw rod, a first nut and a second nut arranged at two ends of the screw rod, and a first motor driving the screw rod to rotate. The screw rod has a first thread and a second thread arranged in opposite directions. The first nut is arranged at the first thread, and the second nut is arranged at the second thread. The first nut is connected with the cutting assembly, and the second nut is connected with the first extruding plate. A second linkage mechanism is arranged between the punching mechanism and the limiting mechanism. The second linkage mechanism comprises a first rotating shaft fixedly connected with the rotating table, a second rotating shaft arranged below the third fixed table, a third rotating shaft connected with the second rotating shaft, a missing gear sleeved on the second rotating shaft, a circular gear sleeved on the first rotating shaft, a fourth rotating shaft in rotary connection with the first extruding plate, and a connecting rod hingedly connected with the third rotating shaft and the fourth rotating shaft at two ends.

2. The automotive steel hinge and hinge lock screw production device of claim 1, wherein, The cutting assembly comprises a bearing seat in sliding connection with the first fixed table, a fifth rotating shaft rotatably arranged on the bearing seat, a cutting wheel fixedly connected with the fifth rotating shaft, and a second motor driving the fifth rotating shaft to rotate.

3. The automotive steel hinge and hinge lock screw production device of claim 2, wherein, The first nut and the bearing seat are fixedly connected through a first connecting piece, the first connecting piece is partially located inside the first fixed table, and the first fixed table is respectively provided with a first sliding groove and a second sliding groove for sliding of the first connecting piece.

4. The automotive steel hinge and hinge lock screw production device of claim 1, wherein, The elastic force of the first elastic piece is greater than that of the second elastic piece.

5. The automotive steel hinge and hinge lock screw production device of claim 1, wherein, The second nut and the first extrusion plate are fixedly connected through a second connecting piece, the second connecting piece is partially located inside the second fixed table, and the second fixed table is respectively provided with a third sliding groove and a fourth sliding groove for sliding of the second connecting piece.

6. The automotive steel hinge and hinge lock screw production device of claim 5, wherein, A sliding block is arranged below the second extrusion plate and slides along the third sliding groove.

7. The automotive steel hinge and hinge lock screw production device of claim 1, wherein, The punching assembly comprises a drill rod arranged on the rotating table and a third motor arranged inside the rotating table, the third motor is used for driving the drill rod to rotate, and the first bearing part and the second bearing part are provided with grooves matched with the shape of the metal block.

8. The automotive steel hinge and hinge lock screw production device of claim 1, wherein, The automobile profile steel hinge and steel hinge locking screw production device further comprises a conveying belt and a poking assembly arranged at the terminal positions of the rolling mechanism and the punching mechanism, the poking assembly comprises a poking plate and a rotating motor used for driving the poking plate to rotate, the driving assembly comprises a flywheel disc, a connecting rod and a stepping motor used for driving the flywheel disc to rotate, one end of the connecting rod is hingedly connected with the second rolling plate, and the other end of the connecting rod is hingedly connected with a non-axle center of the flywheel disc.

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