Machining device for upper connecting plate of automobile seat angle adjuster with inner folding edge

Abstract

The invention discloses a device for machining an upper connecting plate of an automobile seat angle adjuster with an inner folding edge, and belongs to the field of automobile part machining equipment. Comprising a pressing plate fixing and connecting plate and a workbench fixing and connecting plate. The pair of templates are fixedly connected with plate guide columns; the angle adjuster upper connecting plate forming mechanism is arranged between the pressing plate fixed connecting plate and the workbench fixed connecting plate; an upper buffer mechanism; the lower die is fixed on one side of the workbench fixed connecting plate; the lower buffer mechanism is supported on the workbench fixed connecting plate; the stamping die is characterized by further comprising an angle adjuster upper connecting plate inner and outer folding edge stamping upper die and an angle adjuster upper connecting plate inner and outer folding edge stamping lower die. And a distance equal to the length of the angle regulator upper connecting plate inner and outer flanging stamping upper die is formed between the angle regulator upper connecting plate outer flanging stamping die and the angle regulator upper connecting plate right end part outer flanging stamping die. The device has the advantages of simple structure and small volume; the deformation risk and the unlocking failure probability are reduced, the lasting matching precision with the lower connecting plate is guaranteed, and looseness and abnormal sound are avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile parts processing equipment, and in particular relates to a processing device for an upper connecting plate of an automobile seat recliner with an inner folding edge. Background Art

[0002] The above-mentioned upper connecting plate of the car seat recliner can also be called the upper connecting plate or upper connecting plate of the car seat recliner. The upper connecting plate is one of the key components of the structural system of the recliner, which is used to fix with the seat back frame (through fasteners or welding) to transfer the force of the seat back to the recliner mechanism, thereby realizing the adjustment and locking of the seat back angle. In the public Chinese patent documents, technical information related to the upper connecting plate of the above-mentioned car seat recliner can be seen, such as CN222554779U (a linkage component of a vehicle seat, a vehicle seat and a vehicle) discloses a "recliner upper connecting plate", and its function can be found in paragraph 0060 of the specification.

[0003] Since the upper connecting plate of the car seat recliner in the prior art including the above-mentioned CN222554779U has a single folded edge structure at the downward end when in use, i.e., the end connected to the car seat recliner, there are problems of lack of strength and rigidity: it is easy to deform when subjected to force, especially under conditions of frequent adjustment or heavy loads, the phenomenon of insufficient bending and torsional rigidity becomes more and more obvious, such as warping deformation; the locking stability and reliability of the recliner are affected; the long-term matching accuracy of the upper connecting plate and the lower connecting plate cannot be reliably guaranteed.

[0004] Since the connecting plate on the aforementioned car seat recliner is a sheet metal part, in order to make up for its shortcomings, it is necessary to reasonably improve the forming device of the sheet metal part. The technical solution to be introduced below is produced in this context. Summary of the invention

[0005] The task of the present invention is to provide a device for processing an upper connecting plate of a car seat recliner with an inner folding edge. The device has a simple structure and a small size, and can make the processed upper connecting plate of the car seat recliner help to significantly improve the strength and rigidity to reduce the risk of deformation, help to enhance the locking stability and reliability of the recliner to reduce the probability of unlocking failure, and facilitate to ensure the long-term matching accuracy with the lower connecting plate to avoid loosening and abnormal noise.

[0006] The task of the present invention is completed in the following way. A processing device for the upper connecting plate of an automotive seat adjuster with an inner hem includes a press plate fixing connecting plate and a workbench fixing connecting plate. The press plate fixing connecting plate is connected to the punching column of the punching device in the use state, and the workbench fixing connecting plate is fixed to the workbench of the punching device in the use state and is located below the press plate fixing connecting plate corresponding thereto; a pair of template fixing connecting plate guide columns, which are respectively arranged between the left end and the right end of the press plate fixing connecting plate and the workbench fixing connecting plate in a left-right corresponding state; an upper connecting plate forming mechanism of the adjuster, which is arranged between the press plate fixing connecting plate and the workbench fixing connecting plate. The upper connecting plate forming mechanism of the adjuster includes a first press plate, a second press plate, a third press plate, a fourth press plate and a fifth press plate stacked from top to bottom. The first press plate is fixed to the downward side of the press plate fixing connecting plate, and the second, third, fourth and fifth press plates are jointly fixed to the downward side of the first press plate. A first press plate buffer mechanism floating relief cavity is formed in the middle of the first press plate in the length direction. A second press plate buffer mechanism floating relief cavity with the same structure as the first press plate buffer mechanism floating relief cavity is formed in the middle of the second press plate in the length direction and at a position corresponding to the first press plate buffer mechanism floating relief cavity. An outer hem punching die for the upper connecting plate of the adjuster is fixed to the downward side of the left end of the fourth press plate, and an outer hem punching die for the right end of the upper connecting plate of the adjuster is fixed to the downward side of the right end of the fourth press plate. A through cavity for the outer hem punching die of the upper connecting plate of the adjuster is opened at the left end of the fifth press plate and at a position corresponding to the outer hem punching die of the upper connecting plate of the adjuster, and a through cavity for the outer hem punching die of the right end of the upper connecting plate of the adjuster is opened at the right end of the fifth press plate and at a position corresponding to the outer hem punching die of the right end of the upper connecting plate of the adjuster; an upper buffer mechanism, which is supported between the middle of the third press plate in the length direction and the press plate fixing connecting plate in a floating fit state with the first and second press plate buffer mechanism floating relief cavities; a lower die, which is fixed to the upward side of the workbench fixing connecting plate; a lower buffer mechanism, which is supported on the workbench fixing connecting plate in a floating up and down manner at a position corresponding to the lower die cavity of the lower die. The through cavity for the outer hem punching die of the upper connecting plate of the adjuster corresponds to the left end of the lower die cavity, and the through cavity for the outer hem punching die of the right end of the upper connecting plate of the adjuster corresponds to the right end of the lower die cavity;It is characterized in that it further includes an upper die for stamping the inner and outer flanges of the angle adjuster upper connecting plate and a lower die for stamping the inner and outer flanges of the angle adjuster upper connecting plate. The upper die for stamping the inner and outer flanges of the angle adjuster upper connecting plate is fixed to the lower side of the third pressing plate in a longitudinal cantilever state and corresponds to the cavity for the upper die for stamping the inner and outer flanges of the angle adjuster upper connecting plate opened on the fourth pressing plate. The lower die for stamping the inner and outer flanges of the angle adjuster upper connecting plate is arranged on the fifth pressing plate in a longitudinal cantilever state at the position between the left end of the cavity for stamping the outer flange of the angle adjuster upper connecting plate and the cavity for stamping the outer flange of the right end of the angle adjuster upper connecting plate, and the lower die for stamping the inner and outer flanges of the angle adjuster upper connecting plate cooperates with the upper die for stamping the inner and outer flanges of the angle adjuster upper connecting plate; a distance equal to the length of the upper die for stamping the inner and outer flanges of the angle adjuster upper connecting plate is formed between the die for stamping the outer flange of the angle adjuster upper connecting plate and the die for stamping the outer flange of the right end of the angle adjuster upper connecting plate.

[0007] In a specific embodiment of the present invention, a stamping column plate is fixed to the end of the stamping column of the stamping device; a cavity for the fastener of the pressing plate fixing connecting plate to be fixedly connected with the stamping column plate is formed at the center of the left end face and the center of the right end face of the pressing plate fixing connecting plate. The upper ends of the pair of template fixing connecting plate guide columns are in sliding fit with the pair of guide column sliding sleeves up and down. The pair of guide column sliding sleeves are fixed to the lower sides of the left end and the right end of the pressing plate fixing connecting plate corresponding to the positions of the guide column holes opened on the left end and the right end of the pressing plate fixing connecting plate respectively. The lower ends of the pair of template fixing connecting plate guide columns are respectively fixed to the pair of guide column fixing seats, and the pair of guide column fixing seats are respectively fixed to the upper sides of the left end and the right end of the workbench fixing connecting plate. And a cavity for the fastener of the workbench fixing connecting plate to be fixedly connected with the workbench of the stamping device is formed at the center of the left end face and the center of the right end face of the workbench fixing connecting plate.

[0008] In another specific embodiment of the present invention, the pressing plate fixing connecting plate is rectangular in shape, and a buffer plate limiting bolt internal thread sleeve is arranged at the intersection of the diagonals of the rectangular pressing plate fixing connecting plate. A buffer plate limiting bolt for limiting the buffering degree of the upper buffer mechanism is screwed on the buffer plate limiting bolt internal thread sleeve.

[0009] In another specific embodiment of the present invention, the upper buffer mechanism includes an upper buffer spring support plate and a group of upper buffer springs, the upper buffer spring support plate is supported on the third pressure plate at a position corresponding to the floating yield cavity of the first pressure plate buffer mechanism and the floating yield cavity of the second pressure plate buffer mechanism, a group of upper buffer springs are distributed at intervals and the lower ends are supported in upper buffer spring support recesses formed on the upper side of the upper buffer spring support plate, and the upper ends of a group of upper buffer springs extend into a group of upper buffer spring holes provided on the pressure plate fixed connecting plate and are supported on upper buffer spring hole plugs provided on the upper ends of the group of upper buffer spring holes; wherein, the upper buffer spring support plate is in the shape of an I-shape, and the shapes of the floating yield cavity of the first pressure plate buffer mechanism and the floating yield cavity of the second pressure plate buffer mechanism are adapted to the I-shaped upper buffer spring support plate.

[0010] In another specific embodiment of the present invention, the cross-sectional shape of the outer folding stamping die at the right end of the upper connecting plate of the angle adjuster is in the shape of a "). The position is provided with a cavity through which the shape of the outer folding stamping die at the right end of the upper connecting plate of the angle adjuster is adapted to the shape of the outer folding stamping die at the right end of the upper connecting plate of the angle adjuster.

[0011] In another specific embodiment of the present invention, the top of the inner and outer folding stamping upper die of the upper connecting plate of the angle adjuster is fixed to the third fixed plate by the stamping upper die fixing screws, and a pair of floating ejectors are respectively provided on the third fixed plate and at positions corresponding to the upper front side and the upper rear side of the inner and outer folding stamping lower die of the upper connecting plate of the angle adjuster, and the upper ends of the pair of ejectors correspond to the downward side of the upper buffer spring support plate.

[0012] In a further specific embodiment of the present invention, the lower die for stamping the inner and outer flanges of the upper connecting plate of the angle adjuster is composed of a front half die and a rear half die that are correspondingly arranged front and rear and whose lower parts are mutually repelled or closed. An upper support flange of the front half die is formed at the upper part in the length direction of the front half die, and an upper support flange of the rear half die is formed at the upper part in the length direction of the rear half die. The front and rear half die support flanges are located on the fifth pressure plate arranged at the position between the left end of the through cavity of the outer flange stamping die of the upper connecting plate of the angle adjuster and the through cavity of the outer flange stamping die at the right end of the upper connecting plate of the angle adjuster. The lower parts of the front and rear half dies form a longitudinal cantilever state, and the space between the front and rear half dies constitutes a lower die cavity for the upper die for stamping the inner and outer flanges of the upper connecting plate of the angle adjuster to cooperate. When the upper die for stamping the inner and outer flanges of the upper connecting plate of the angle adjuster does not extend to the lower part of the lower die for stamping the inner and outer flanges of the upper connecting plate of the angle adjuster in the lower die cavity for stamping the inner and outer flanges of the upper connecting plate of the angle adjuster, the lower parts in the length direction of the front and rear half dies of the lower die for stamping the inner and outer flanges of the upper connecting plate of the angle adjuster are in a mutually closed state. When the upper die for stamping the inner and outer flanges of the upper connecting plate of the angle adjuster extends downward to the lower part of the lower die for stamping the inner and outer flanges of the upper connecting plate of the angle adjuster in the lower die cavity for stamping the inner and outer flanges of the upper connecting plate of the angle adjuster, the lower parts in the length direction of the front and rear half dies of the lower die for stamping the inner and outer flanges of the upper connecting plate of the angle adjuster are in a mutually repelled state. A front inner flange forming convex edge is formed at the front side of the lower part in the length direction of the front half die, and a rear inner flange forming convex edge is formed at the rear side of the lower part in the length direction of the rear half die. A set of front half die buffer and reset devices are arranged at intervals on the fifth pressure plate and at the position below the length direction of the front half die support flange corresponding to the front half die. A set of rear half die buffer and reset devices with the same structure and corresponding positions as the front half die buffer and reset devices are also arranged at intervals at the position below the length direction of the rear half die support flange corresponding to the rear half die.

[0013] In a further specific embodiment of the present invention, on the fifth pressure plate and at the positions corresponding to a set of front half die buffer and reset devices, front half die buffer and reset device mounting holes for arranging the set of front half die buffer and reset devices are spaced apart. On the positions corresponding to a set of rear half die buffer and reset devices, rear half die buffer and reset device mounting holes for arranging the set of rear half die buffer and reset devices are spaced apart. A set of front half die buffer and reset devices are arranged in the set of front half die buffer and reset device mounting holes and are in contact with the front side of the front half die. A set of rear half die buffer and reset devices are arranged in the set of rear half die buffer and reset device mounting holes and are in contact with the rear side of the rear half die.

[0014] In yet another specific embodiment of the present invention, each of the set of front half - die buffer reset devices includes a front half - die contact ejector pin, an ejector pin spring, and a spring support plug. The front half - die contact ejector pin is disposed at the bottom of the installation hole of the front half - die buffer reset device, and the rear end of the front half - die contact ejector pin contacts the front side surface of the front half - die. The ejector pin spring is disposed between the front half - die contact ejector pin and the spring support plug. The rear end of the ejector pin spring is supported on the front end face of the front half - die contact ejector pin, while the front end of the ejector pin spring is supported on the spring support plug. The spring support plug is fixed to the orifice portion at the front end of the installation hole of the front half - die buffer reset device.

[0015] In yet another specific embodiment of the present invention, at the bottom of the workbench fixed connection plate and at a position corresponding to the length direction of the lower buffer mechanism, a spring limit plate slot is formed, and lower buffer spring holes are spaced apart along the length direction corresponding to the spring limit plate slot. The lower buffer mechanism includes a lower buffer spring support plate, a lower buffer seat, and a set of lower buffer springs. The lower buffer spring support plate is embedded in the spring limit plate slot and is fixed to the workbench fixed connection plate by lower buffer spring support plate fixing screws. The lower buffer seat is disposed in the lower die cavity, and lower buffer seat floating guide columns are fixedly arranged at intervals on the downward - facing side in the length direction of the lower buffer seat. The lower buffer seat floating guide columns are in sliding fit with the floating guide column guiding sliding holes formed on the workbench fixed connection plate in the up - and - down direction. A set of lower buffer springs are distributed at intervals along the length direction of the lower buffer seat. The lower ends of the set of lower buffer springs pass through the lower buffer spring holes and are supported on the lower buffer spring support plate, while the upper ends are supported on the downward - facing side of the lower buffer seat.

[0016] The technical effect of the technical solution of the present invention is as follows: Due to its simple structure and small volume, economy can be reflected. Since the inner and outer flanges of the upper connecting plate of the angle adjuster are stamped on the upper and lower dies, the right end of the upper connecting plate of the vehicle seat angle adjuster processed by the processing device of the upper connecting plate of the vehicle seat angle adjuster can form inner and outer flanges, so as to extremely improve the strength and stiffness and reduce the risk of deformation, which is beneficial to enhancing the locking stability and reliability of the angle adjuster and reducing the probability of unlocking failure, and is convenient for ensuring the long - term cooperation accuracy with the lower connecting plate to avoid loosening and the generation of abnormal noises. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of an embodiment of the present invention; Figure 2 For Figure 1 the cross - sectional view; Figure 3 It is a schematic diagram of the upper connecting plate of the vehicle seat angle adjuster processed by the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] In order to more clearly understand the technical essence and beneficial effects of the present invention, the applicant will make a detailed description in the following manner by way of examples. However, the descriptions of the examples are not limitations on the solutions of the present invention. Any equivalent transformation that is merely formal rather than substantial based on the concept of the present invention should be regarded as falling within the scope of the technical solutions of the present invention.

[0019] In the following description, any concepts related to directions or orientations such as up, down, left, right, front, and back are based on Figure 1 the position state. Therefore, it should not be construed as a special limitation on the technical solutions provided by the present invention.

[0020] Please refer to Figure 1 and Figure 2, which shows a pressing plate fixing connecting plate 1 and a workbench fixing connecting plate 2. The pressing plate fixing connecting plate 1 is connected to a punching column of a punching device such as a hydraulic press or a similar punching machine in the use state. If a hydraulic punching machine is used, the aforementioned punching column can be understood as a hydraulic cylinder column. However, in the present invention, it is not necessary to uniquely define the specific equipment, that is, the aforementioned processing device. The workbench fixing connecting plate 2 is fixed to the workbench of the punching device in the use state and is located below the pressing plate fixing connecting plate 1 corresponding to it; a pair of template fixing connecting plate guide columns 3 are shown. The pair of template fixing connecting plate guide columns 3 are respectively arranged between the left end and the right end of the pressing plate fixing connecting plate 1 and the workbench fixing connecting plate 2 in a left-right corresponding state; an angle adjuster upper connecting plate forming mechanism 4 is shown. The angle adjuster upper connecting plate forming mechanism 4 is arranged between the pressing plate fixing connecting plate 1 and the workbench fixing connecting plate 2, and the angle adjuster upper connecting plate forming mechanism 4 includes a first pressing plate 41, a second pressing plate 42, a third pressing plate 43, a fourth pressing plate 44 and a fifth pressing plate 45 stacked from top to bottom. The first pressing plate 41 is fixed to the downward side of the aforementioned pressing plate fixing connecting plate 1 through a first pressing plate screw 412. The second, third, fourth, and fifth pressing plates 42, 43, 44, and 45 are jointly fixed to the downward side of the first pressing plate 41 through a common connecting screw 46. A first pressing plate buffer mechanism floating relief cavity 411 is formed in the middle of the first pressing plate 41 in the length direction. A second pressing plate buffer mechanism floating relief cavity 421 with the same structure as the first pressing plate buffer mechanism floating relief cavity 411 is formed in the middle of the second pressing plate 42 in the length direction and at a position corresponding to the first pressing plate buffer mechanism floating relief cavity 411. A corner adjuster upper connecting plate outer flanging punching die 441 is fixed to the downward side of the left end of the fourth pressing plate 44 through a corner adjuster upper connecting plate outer flanging punching die fixing screw 4411, and a corner adjuster upper connecting plate right end outer flanging punching die 442 is fixed to the downward side of the right end of the fourth pressing plate 44 through a corner adjuster upper connecting plate right end outer flanging punching die fixing screw 4421. A corner adjuster upper connecting plate outer flanging punching die passing cavity 451 is opened at the left end of the fifth pressing plate 45 and at a position corresponding to the corner adjuster upper connecting plate outer flanging punching die 441, and a corner adjuster upper connecting plate right end outer flanging punching die passing cavity 452 is opened at the right end of the fifth pressing plate 45 and at a position corresponding to the corner adjuster upper connecting plate right end outer flanging punching die 442; an upper buffer mechanism 5 is shown. The upper buffer mechanism 5 is supported between the middle of the length direction of the aforementioned third pressing plate 43 and the aforementioned pressing plate fixing connecting plate 1 in a floating fit state with the aforementioned first and second pressing plate buffer mechanism floating relief cavities 411 and 421; a lower die 6 (also called "die base") is shown. The lower die 6 is fixed to the upward side of the aforementioned workbench fixing connecting plate 2 through a lower die fixing screw 62;The following buffer mechanism 7 is shown. The lower buffer mechanism 7 is supported on the aforementioned workbench fixed connection plate 2 in a floating manner up and down at a position corresponding to the lower die cavity 61 of the lower die 6. The cavity 451 of the flanging stamping die for the outer folded edge of the upper connection plate of the angle adjuster corresponds to the left end of the lower die cavity 61, and the cavity 452 of the flanging stamping die for the outer folded edge of the right end of the upper connection plate of the angle adjuster corresponds to the right end of the lower die cavity 61.;

[0021] As the technical key points of the technical solution provided by the present invention: In the structural system of the processing device for the upper connection plate of the vehicle seat angle adjuster with an inner folded edge of the present invention, there is also an upper die 8 for stamping the inner and outer folded edges of the upper connection plate of the angle adjuster and a lower die 9 for stamping the inner and outer folded edges of the upper connection plate of the angle adjuster. The upper die 8 for stamping the inner and outer folded edges of the upper connection plate of the angle adjuster is fixed in a longitudinally cantilevered state on the downward side of the aforementioned third pressing plate 43 and corresponds to the cavity 443 for the upper die for stamping the inner and outer folded edges of the upper connection plate of the angle adjuster opened on the fourth pressing plate 44. The lower die 9 for stamping the inner and outer folded edges of the upper connection plate of the angle adjuster is arranged in a longitudinally cantilevered state on the aforementioned fifth pressing plate 45 at a position between the left end corresponding to the cavity 451 of the flanging stamping die for the outer folded edge of the upper connection plate of the angle adjuster and the cavity 452 of the flanging stamping die for the outer folded edge of the right end of the upper connection plate of the angle adjuster, and the lower die 9 for stamping the inner and outer folded edges of the upper connection plate of the angle adjuster cooperates with the upper die 8 for stamping the inner and outer folded edges of the upper connection plate of the angle adjuster; A distance equal to the length of the upper die 8 for stamping the inner and outer folded edges of the upper connection plate of the angle adjuster is formed between the aforementioned flanging stamping die 441 for the outer folded edge of the upper connection plate of the angle adjuster and the flanging stamping die 442 for the outer folded edge of the right end of the upper connection plate of the angle adjuster.

[0022] Please continue to see Figure 1 and Figure 2 A stamping column plate is fixed at the end of the stamping column of the aforementioned stamping device; A cavity 11 for the fastener of the pressing plate fixed connection plate to be fixedly connected with the aforementioned stamping column plate is formed at the center position of the left end face and the center position of the right end face of the aforementioned pressing plate fixed connection plate 1. The upper ends of the pair of template fixed connection plate guide columns 3 are respectively slidably matched with a pair of guide column sliding sleeves 31 through screws. The pair of guide column sliding sleeves 31 are fixed to the downward sides of the left end and the right end of the pressing plate fixed connection plate 1 at positions corresponding to the guide column holes 12 opened at the left end and the right end of the pressing plate fixed connection plate 1 respectively. The lower ends of the pair of template fixed connection plate guide columns 3 are respectively fixed to a pair of guide column fixing seats 32 through screws, and the pair of guide column fixing seats 32 are respectively fixed to the upward sides of the left end and the right end of the aforementioned workbench fixed connection plate 2. And a cavity 21 for the fastener of the workbench fixed connection plate to be fixedly connected with the workbench of the aforementioned stamping device is formed at the center position of the left end face and the center position of the right end face of the workbench fixed connection plate 2.

[0023] The shape of the aforementioned pressure plate fixing connecting plate 1 is rectangular (the same applies to the second, third, fourth, and fifth pressure plates 42, 43, 44, and 45), and a buffer plate limiting bolt internal thread sleeve 13 is provided at the intersection of the diagonals of the rectangular pressure plate fixing connecting plate 1. A buffer plate limiting bolt 131 for limiting the buffering degree of the aforementioned upper buffer mechanism 5 is screwed onto the buffer plate limiting bolt internal thread sleeve 13.

[0024] The aforementioned upper buffer mechanism 5 includes an upper buffer spring support plate 51 and a set of upper buffer springs 52. The upper buffer spring support plate 51 is supported on the aforementioned third pressure plate 43 at positions corresponding to the aforementioned first pressure plate buffer mechanism floating relief cavity 411 and the second pressure plate buffer mechanism floating relief cavity 421. A set of upper buffer springs 52 are distributed at intervals and the lower ends are supported in upper buffer spring support pits 511 formed on the upward-facing side of the upper buffer spring support plate 5. The upper ends of a set of upper buffer springs 52 extend into a set of upper buffer spring holes 14 opened in the aforementioned pressure plate fixing connecting plate 1 and are supported on upper buffer spring hole plugs 141 provided at the upper end portions of the set of upper buffer spring holes 14. Among them, the shape of the aforementioned upper buffer spring support plate 51 is I-shaped, and the shapes of the aforementioned first pressure plate buffer mechanism floating relief cavity 411 and the second pressure plate buffer mechanism floating relief cavity 421 are adapted to the I-shaped upper buffer spring support plate 51.

[0025] Continue to see Figure 1 and Figure 2 The cross-sectional shape of the outer folded edge stamping die 442 at the right end of the aforementioned angle adjuster upper connecting plate is in the shape of ), and a shape of a through cavity 452 for the outer folded edge stamping die at the right end of the angle adjuster upper connecting plate is adapted to the shape of the outer folded edge stamping die 442 at the right end of the angle adjuster upper connecting plate, that is, a cavity in the shape of ).

[0026] The top of the aforementioned angle adjuster upper connecting plate inner and outer folded edge stamping upper die 8 is fixed to the aforementioned third fixing plate 43 by stamping upper die fixing screws 81 ( Figure 1 shown), and a pair of vertically floating ejector pins 431 are provided on the third fixing plate 43 at positions corresponding to the upper front side and the upper rear side of the upper part of the angle adjuster upper connecting plate inner and outer folded edge stamping lower die 9. The upper ends of the pair of ejector pins 431 correspond to the downward-facing side of the aforementioned upper buffer spring support plate 51.

[0027] Continue to see Figure 1 and Figure 2, the inner and outer flange stamping lower die 9 of the above-mentioned angle adjuster upper connecting plate is composed of a front half die 91 and a rear half die 92 that correspond to each other front and back and whose lower parts repel or close each other. A front half die supporting flange 911 is formed at the upper part in the length direction of the front half die 91, and a rear half die supporting flange 921 is formed at the upper part in the length direction of the rear half die 92. The front and rear half die supporting flanges 911, 921 are located on the above-mentioned fifth pressure plate 451 arranged at the position between the left end of the through cavity 451 of the outer flange stamping die of the angle adjuster upper connecting plate and the through cavity 452 of the outer flange stamping die at the right end of the angle adjuster upper connecting plate. The lower parts of the front and rear half dies 91, 92 form a longitudinal cantilever state, and the space between the front and rear half dies 91, 92 constitutes an inner and outer flange stamping lower die cavity 93 for the cooperation of the inner and outer flange stamping upper die 8 of the angle adjuster upper connecting plate. When the inner and outer flange stamping upper die 8 of the angle adjuster upper connecting plate does not extend to the lower part of the inner and outer flange stamping lower die 9 of the angle adjuster upper connecting plate in the inner and outer flange stamping lower die cavity 93 of the angle adjuster upper connecting plate, the lower parts in the length direction of the front and rear half dies 91, 92 of the inner and outer flange stamping lower die 9 of the angle adjuster upper connecting plate are in a closed state with each other. When the inner and outer flange stamping upper die 8 of the angle adjuster upper connecting plate extends downward to the lower part of the inner and outer flange stamping lower die 9 of the angle adjuster upper connecting plate in the inner and outer flange stamping lower die cavity 93 of the angle adjuster upper connecting plate, the lower parts in the length direction of the front and rear half dies 91, 92 of the inner and outer flange stamping lower die 9 of the angle adjuster upper connecting plate are in a state of repelling each other. And a front inner flange forming flange 912 is formed at the front side of the lower part in the length direction of the front half die 91, and a rear inner flange forming flange 922 is formed at the rear side of the lower part in the length direction of the rear half die 92. A set of front half die buffer and reset devices 454 are arranged at intervals on the above-mentioned fifth pressure plate 451 and at the position below the length direction of the front half die supporting flange 911 corresponding to the front half die 91. And a set of rear half die buffer and reset devices 455 with the same structure as the front half die buffer and reset devices 454 and corresponding positions are also arranged at intervals at the position below the length direction of the rear half die supporting flange 921 corresponding to the rear half die 92.

[0028] Continue to see Figure 1 and Figure 2, on the aforementioned fifth pressure plate 45 and at positions corresponding to a set of front half - die buffer and reset devices 454, front half - die buffer and reset device mounting holes 456 are spaced apart for the aforementioned set of front half - die buffer and reset devices 454 to be arranged. And at positions corresponding to a set of rear half - die buffer and reset devices 455, rear half - die buffer and reset device mounting holes 457 are spaced apart for the aforementioned set of rear half - die buffer and reset devices 455 to be arranged. A set of front half - die buffer and reset devices 454 is arranged in the set of front half - die buffer and reset device mounting holes 456 and contacts the front side of the aforementioned front half - die 91. A set of rear half - die buffer and reset devices 455 is arranged in the set of rear half - die buffer and reset device mounting holes 457 and contacts the rear side of the aforementioned rear half - die 92.

[0029] Since the structure of the aforementioned set of rear half - die buffer and reset devices 455 is the same as that of the set of front half - die buffer and reset devices 454, the applicant will only specifically describe the set of front half - die buffer and reset devices 454 below. Each of this set of front half - die buffer and reset devices 454 includes a front half - die contact ejector pin 4541, an ejector pin spring 4542, and a spring support plug 4543. The front half - die contact ejector pin 4541 is arranged at the bottom of the aforementioned front half - die buffer and reset device mounting hole 456 and the rear end of the front half - die contact ejector pin 4541 contacts the front side of the aforementioned front half - die 91. The ejector pin spring 4542 is arranged between the front half - die contact ejector pin 4541 and the spring support plug 4543. The rear end of the ejector pin spring 4542 is supported on the front end face of the front half - die contact ejector pin 4541, while the front end of the ejector pin spring 4542 is supported on the spring support plug 4543. The spring support plug 4543 is fixed to the orifice part at the front end of the front half - die buffer and reset device mounting hole 456.

[0030] Since the thickness of the upper die 8 for stamping the inner and outer flanges of the angle adjuster upper connecting plate (the distance or dimension from the front side to the rear side in the position state shown, that is, the distance or dimension from the left side to the right side in the position state shown) gradually decreases from top to bottom. Figure 1 When the upper die 8 for stamping the inner and outer flanges of the angle adjuster upper connecting plate stamps the angle adjuster upper connecting plate 10 of the vehicle seat, the front and rear half - dies 91, 92 repel each other. The degree of repulsion is essentially the compression degree of the aforementioned ejector pin spring 4542. Figure 1 So when the upper die 8 for stamping the inner and outer flanges of the angle adjuster upper connecting plate moves upward to the lower part corresponding to the cavity 93 of the lower die for stamping the inner and outer flanges of the angle adjuster upper connecting plate, then the aforementioned compressed ejector pin spring 4542 resets and pushes the front side of the front half - die 91, thereby resetting the lower die 9 for stamping the inner and outer flanges of the angle adjuster upper connecting plate, and its lower part is in a closed state. The aforementioned front half - die buffer and reset device 454 has both a buffering function and a reset function.

[0031] Please still refer toFigure 1 and Figure 2 , a spring limit plate groove 22 is formed at the bottom of the aforementioned workbench fixed connection plate 2 and at a position corresponding to the length direction of the aforementioned lower buffer mechanism 7, and lower buffer spring holes 23 are spaced apart in the length direction corresponding to the spring limit plate groove 22; the aforementioned lower buffer mechanism 7 includes a lower buffer spring support plate 71, a lower buffer seat 72, and a set of lower buffer springs 73. The lower buffer spring support plate 71 is embedded in the aforementioned spring limit plate groove 22 and is fixed to the workbench fixed connection plate 2 by lower buffer spring support plate fixing screws 711. The lower buffer seat 72 is arranged in the aforementioned lower die cavity 61, and lower buffer seat floating guide posts 721 are fixedly arranged at intervals on the downward side in the length direction of the lower buffer seat 72. The lower buffer seat floating guide posts 721 are in vertical sliding fit with floating guide post guiding sliding holes 24 formed in the workbench fixed connection plate 2. A set of lower buffer springs 73 are spaced apart along the length direction of the lower buffer seat 72, and the lower ends of the set of lower buffer springs 73 pass through the lower buffer spring holes 23 and are supported on the lower buffer spring support plate 71, while the upper ends are supported on the downward side of the aforementioned lower buffer seat 72.

[0032] Please refer to Figure 3 , Figure 3 which shows the upper connecting plate 10 of an automotive seat adjuster obtained by the processing device of the present invention, i.e., the processing device with the structures shown by Figure 1 and Figure 2 . Since the functions of the upper connecting plate 10 of the automotive seat adjuster and the content connected to related components have been mentioned by the applicant in the background art column above, only a brief description is given as follows. The entire upper connecting plate 10 of the automotive seat adjuster tends to be in a zigzag or Z-shaped structure. The front and rear sides of the left end are left end single flanges 101, and the area at the right end is a right end end single flange 102. However, after being processed by the processing device of the present invention, an inner and outer flange 103 of the adjuster upper connecting plate, which is composed of an inner flange 1031 and an outer flange 1032, is formed between the right end end single flange 102 and the left end single flange 101. The inner and outer flange 103 of the adjuster upper connecting plate can also be called a composite flange or a double flange, and has various good technical effects recorded by the applicant in the technical effects column above.

[0033] The applicant describes that the upper connecting plate of the automotive seat adjuster with an inner flange of the present invention with the structures shown by Figure 1 and Figure 2 is processed by the processing device Figure 3The process of the upper connecting plate 10 of the vehicle seat recliner with the shown structure. Assume that the pressing plate fixing connecting plate 1 has been fixed to the punching column of the punching device and the workbench fixing connecting plate 2 has been fixed to the workbench of the punching device. Then, the blank of the upper connecting plate of the vehicle seat recliner, which is in a flat shape and obtained through the previous blanking die (also called cutting die or blanking die), is placed on the lower die 6 by a manipulator or an on-line operator and corresponds to the lower buffer seat 72 of the lower buffer mechanism 7 provided in the lower die cavity 61. Start the punching device to work. The punching column makes the pressing plate fixing connecting plate 1 move downward, driving the first, second, third, fourth, and fifth pressing plates 41, 42, 43, 44, 45 to move downward together. During the above process, the outer flanging punching die 441 of the upper connecting plate of the recliner (also called "single flanging punching die of the upper connecting plate of the recliner", the same in the previous example) and the outer flanging punching die 442 at the right end of the upper connecting plate of the recliner (also called "single flanging punching die at the right end of the upper connecting plate of the recliner", the same in the previous example) respectively punch and form on the blank of the upper connecting plate of the vehicle seat recliner the left-end single flanging 101 and the right-end single flanging 102 shown by Figure 3 At the same time, during the above process, the upper die 8 for punching the inner and outer flanges of the upper connecting plate of the recliner also moves downward accordingly. When it moves downward below the lower die cavity 93 for punching the inner and outer flanges of the upper connecting plate of the recliner, it will cause the front and rear half dies 91, 92 of the lower die 9 for punching the inner and outer flanges of the upper connecting plate of the recliner to repel each other, forming an opening (i.e., opening to each other) on the opposite sides of the front and rear inner flanges 912, 922. With the downward pressing of the upper die 8 for punching the inner and outer flanges of the upper connecting plate of the recliner, the outer flanging 1032 shown above is formed on the upper connecting plate 10 of the vehicle seat recliner in cooperation with the lower die cavity 61. When the lower buffer mechanism 7 sinks or moves downward to the bottom of the lower die cavity 61, that is, when it moves to the extreme, that is, when the set of buffer springs 73 is compressed to the extreme, the front and rear half die supporting flanges 911, 921 are subjected to pressure, causing the lower surface of the outer flanging 1032 already formed on the front and rear inner flanging forming flanges 912, 922 to be extruded, thus forming the inner flanging 1031 shown by Figure 3 Shown.

[0034] When the stamping column of the stamping device moves upward, it moves upward together with the first, second, third, fourth, and fifth pressing plates 41, 42, 43, 44, 45, the outer flanging die 441 of the upper connecting plate of the angle adjuster, the outer flanging die 442 of the right end of the upper connecting plate of the angle adjuster, and the upper and lower dies 8 and 9 for the inner and outer flanging of the upper connecting plate of the angle adjuster. Under the restoring force of a set of lower buffer springs 73 of the lower buffer mechanism 7, the lower buffer seat 72 together with the formed upper connecting plate 10 of the vehicle seat angle adjuster located above it floats upward, and the formed upper connecting plate 10 of the vehicle seat angle adjuster is taken away by a manipulator or an on-line operator. Enter the next round of repeated actions until the flat blank of the upper connecting plate of the vehicle seat angle adjuster obtained by blanking with the aforementioned blanking die is stamped into Figure 3 the structure shown. When the pressing plate fixing connecting plate 1 moves upward, it is buffered by the aforementioned upper buffer mechanism 5, and when the pressing plate fixing connecting plate 1 moves downward, it is assisted by the release of a set of buffer springs 52 of the structural system of the upper buffer mechanism 5, that is, the action of the restoring force, to assist the downward movement of the first, second, third, fourth, and fifth pressing plates 41, 42, 43, 44, 45, etc.

[0035] In summary, the technical solution provided by the present invention makes up for the deficiencies in the prior art, successfully completes the invention task, and truthfully realizes the technical effects described by the applicant in the technical effect column above.

Claims

1. A device for processing an upper connecting plate of a car seat recliner with an inner folding edge, comprising a pressing plate fixing connecting plate (1) and a workbench fixing connecting plate (2), wherein the pressing plate fixing connecting plate (1) is connected to a punching column of a punching device in a use state, and the workbench fixing connecting plate (2) is fixed to a workbench of the punching device in a use state and the workbench fixing connecting plate (2) corresponds to the lower side of the pressing plate fixing connecting plate (1); a pair of template fixing connecting plate guide pillars (3), wherein the pair of template fixing connecting plate guide pillars (3) are respectively arranged between the left end and the right end of the pressing plate fixing connecting plate (1) and the workbench fixing connecting plate (2) in a state corresponding to each other on the left and right sides; a recliner upper connecting plate forming machine The upper connecting plate forming mechanism (4) of the angle adjuster is arranged between the pressure plate fixing connecting plate (1) and the workbench fixing connecting plate (2), and the upper connecting plate forming mechanism (4) of the angle adjuster comprises a first pressure plate (41), a second pressure plate (42), a third pressure plate (43), a fourth pressure plate (44) and a fifth pressure plate (45) stacked from top to bottom, the first pressure plate (41) is fixed to the side of the pressure plate fixing connecting plate (1) facing downward, the second, third, fourth and fifth pressure plates (42, 43, 44, 45) are fixed to the side of the first pressure plate (41) facing downward, and a first pressure plate buffer mechanism is formed in the middle of the length direction of the first pressure plate (41) to float and yield. The cavity (411) is formed in the middle of the length direction of the second pressure plate (42) and at a position corresponding to the floating clearance cavity (411) of the first pressure plate buffer mechanism. A second pressure plate buffer mechanism floating clearance cavity (421) having the same structure as the first pressure plate buffer mechanism floating clearance cavity (411) is formed. An outer folding stamping die (441) of the upper connecting plate of the angle adjuster is fixed on the left end of the fourth pressure plate (44) facing downward, and an outer folding stamping die (442) of the right end of the upper connecting plate of the angle adjuster is fixed on the right end of the fourth pressure plate (44) facing downward. A A cavity (451) for punching the outer folding edge of the upper connecting plate of the angle adjuster is provided, and a cavity (452) for punching the outer folding edge of the right end of the upper connecting plate of the angle adjuster is provided at the right end of the fifth pressing plate (45) and at a position corresponding to the outer folding edge punching die (442) at the right end of the upper connecting plate of the angle adjuster; an upper buffer mechanism (5), the upper buffer mechanism (5) is supported between the middle part of the length direction of the third pressing plate (43) and the pressing plate fixed connecting plate (1) in a state of floating cooperation with the floating yielding cavities (411, 421) of the first and second pressing plate buffer mechanisms; a lower die (6), the lower die (6) is fixed to the upper side of the fixed connecting plate (2) of the workbench;A lower buffer mechanism (7), which is supported on the fixed connecting plate (2) of the workbench in a floating manner up and down at a position corresponding to the lower die cavity (61) of the lower die (6). The cavity (451) of the hemming die for the outer folded edge of the upper connecting plate of the adjuster corresponds to the left end of the lower die cavity (61), and the cavity (452) of the hemming die for the outer folded edge at the right end of the upper connecting plate of the adjuster corresponds to the right end of the lower die cavity (61); It is characterized in that:; It further includes an upper die (8) for stamping the inner and outer flanges of the angle adjuster upper connecting plate and a lower die (9) for stamping the inner and outer flanges of the angle adjuster upper connecting plate. The upper die (8) for stamping the inner and outer flanges of the angle adjuster upper connecting plate is fixed to the downward side of the third pressing plate (43) in a longitudinal cantilever state and corresponds to the cavity (443) for the upper die for stamping the inner and outer flanges of the angle adjuster upper connecting plate formed on the fourth pressing plate (44). The lower die (9) for stamping the inner and outer flanges of the angle adjuster upper connecting plate is arranged on the fifth pressing plate (45) in a longitudinal cantilever state at a position between the left end corresponding to the through cavity (451) for stamping the outer flange of the angle adjuster upper connecting plate and the through cavity (452) for stamping the outer flange of the right end of the angle adjuster upper connecting plate, and the lower die (9) for stamping the inner and outer flanges of the angle adjuster upper connecting plate cooperates with the upper die (8) for stamping the inner and outer flanges of the angle adjuster upper connecting plate; a distance equal to the length of the upper die (8) for stamping the inner and outer flanges of the angle adjuster upper connecting plate is formed between the outer flange stamping die (441) of the angle adjuster upper connecting plate and the outer flange stamping die (442) of the right end of the angle adjuster upper connecting plate.

2. The processing device for the upper connecting plate of an automotive seat adjuster with an inner folded edge according to claim 1, characterized in that: A stamping column plate is fixed to the end of the stamping column of the stamping device; at the center positions of the left end face and the right end face of the pressing plate fixing connecting plate (1), a cavity (11) for the fastener of the pressing plate fixing connecting plate to be fixedly connected with the stamping column plate is formed respectively. The upper ends of the pair of template fixing connecting plate guide columns (3) are in up-and-down sliding fit with a pair of guide column sliding sleeves (31). The pair of guide column sliding sleeves (31) are fixed to the downward sides of the left end and the right end of the pressing plate fixing connecting plate (1) at positions corresponding to the guide column holes (12) formed in the left end and the right end of the pressing plate fixing connecting plate (1) respectively. The lower ends of the pair of template fixing connecting plate guide columns (3) are respectively fixed to a pair of guide column fixing seats (32), and the pair of guide column fixing seats (32) are respectively fixed to the upward sides of the left end and the right end of the workbench fixing connecting plate (2). At the center positions of the left end face and the right end face of the workbench fixing connecting plate (2), a cavity (21) for the fastener of the workbench fixing connecting plate to be fixedly connected with the workbench of the stamping device is formed respectively.

3. The processing device for the upper connecting plate of an automotive seat adjuster with an inner folded edge according to claim 1, characterized in that: The pressing plate fixing connecting plate (1) is rectangular in shape, and a buffer plate limiting bolt internal thread sleeve (13) is arranged at the intersection of the diagonals of the rectangular pressing plate fixing connecting plate (1). A buffer plate limiting bolt (131) for limiting the buffering degree of the upper buffer mechanism (5) is screwed on the buffer plate limiting bolt internal thread sleeve (13).

4. The processing device for the upper connecting plate of an automotive seat adjuster with an inner folded edge according to claim 3, characterized in that: The upper buffer mechanism (5) comprises an upper buffer spring support plate (51) and a group of upper buffer springs (52), the upper buffer spring support plate (51) being supported on the third pressure plate (43) at a position corresponding to the floating clearance cavity (411) of the first pressure plate buffer mechanism and the floating clearance cavity (421) of the second pressure plate buffer mechanism, a group of upper buffer springs (52) being distributed at intervals and having their lower ends supported in an upper buffer spring support recess (511) formed on the upper side of the upper buffer spring support plate (5), and a The upper end of the upper buffer spring (52) is inserted into a group of upper buffer spring holes (14) provided in the pressure plate fixed connecting plate (1) and is supported on an upper buffer spring hole plug (141) provided at the upper end of the group of upper buffer spring holes (14); wherein the upper buffer spring support plate (51) is in the shape of an I-shape, and the shapes of the floating clearance cavity (411) of the first pressure plate buffer mechanism and the floating clearance cavity (421) of the second pressure plate buffer mechanism are adapted to the I-shaped upper buffer spring support plate (51).

5. The processing device for the upper connecting plate of an automotive seat adjuster with an inner folded edge according to claim 1, characterized in that: The cross-sectional shape of the outer folding stamping die (442) at the right end of the upper connecting plate of the angle adjuster is in the shape of a letter "-", and the position is provided with a through cavity (452) of the outer folding stamping die at the right end of the upper connecting plate of the angle adjuster, the shape of which is adapted to the shape of the outer folding stamping die (442) at the right end of the upper connecting plate of the angle adjuster.

6. The processing device for the upper connecting plate of an automotive seat adjuster with an inner folded edge according to claim 4, characterized in that: The top of the upper die (8) for stamping the inner and outer folding edges of the upper connecting plate of the angle adjuster is fixed to the third fixing plate (43) by means of the upper die fixing screws (81), and a pair of upper and lower floating ejector pins (431) are respectively provided on the third fixing plate (43) and at positions corresponding to the upper front side and the upper rear side of the lower die (9) for stamping the inner and outer folding edges of the upper connecting plate of the angle adjuster, and the upper ends of the pair of ejector pins (431) correspond to the downward side of the upper buffer spring support plate (51).

7. The processing device for the upper connecting plate of an automotive seat adjuster with an inner folded edge according to claim 6, characterized in that: The stamping lower die (9) for the inner and outer flanges of the upper connecting plate of the angle adjuster is composed of a front half die (91) and a rear half die (92) that correspond to each other front and back and whose lower parts are mutually repelled or closed. An upper front half die supporting flange (911) is formed at the upper part in the length direction of the front half die (91), and an upper rear half die supporting flange (921) is formed at the upper part in the length direction of the rear half die (92). The front and rear half die supporting flanges (911, 921) are located on the fifth pressing plate (451) set at the position between the left end of the through cavity (451) of the stamping die for the outer flange of the upper connecting plate of the angle adjuster and the right end of the through cavity (452) of the stamping die for the outer flange of the end part of the upper connecting plate of the angle adjuster. The lower parts of the front and rear half dies (91, 92) form a longitudinal cantilever state, and the space between the front and rear half dies (91, 92) constitutes a stamping lower die cavity (93) of the inner and outer flanges of the upper connecting plate of the angle adjuster for the cooperation of the stamping upper die (8) of the inner and outer flanges of the upper connecting plate of the angle adjuster. When the stamping upper die (8) of the inner and outer flanges of the upper connecting plate of the angle adjuster does not extend to the lower part of the stamping lower die (9) of the inner and outer flanges of the upper connecting plate of the angle adjuster in the stamping lower die cavity (93) of the inner and outer flanges of the upper connecting plate of the angle adjuster, the lower parts in the length direction of the front and rear half dies (91, 92) of the stamping lower die (9) of the inner and outer flanges of the upper connecting plate of the angle adjuster are in a mutually closed state. When the stamping upper die (8) of the inner and outer flanges of the upper connecting plate of the angle adjuster extends downward to the lower part of the stamping lower die (9) of the inner and outer flanges of the upper connecting plate of the angle adjuster in the stamping lower die cavity (93) of the inner and outer flanges of the upper connecting plate of the angle adjuster, the lower parts in the length direction of the front and rear half dies (91, 92) of the stamping lower die (9) of the inner and outer flanges of the upper connecting plate of the angle adjuster are in a mutually repelled state. A front inner flange forming flange (912) is formed at the front side of the lower part in the length direction of the front half die (91), and a rear inner flange forming flange (922) is formed at the rear side of the lower part in the length direction of the rear half die (92). A set of front half die buffer and reset devices (454) are arranged at intervals at the position below the length direction of the front half die supporting flange (911) of the front half die (91) on the fifth pressing plate (45), and a set of rear half die buffer and reset devices (455) with the same structure and corresponding positions as the front half die buffer and reset devices (454) are also arranged at intervals at the position below the length direction of the rear half die supporting flange (921) of the rear half die (92).

8. The processing device for the upper connecting plate of an automotive seat adjuster with an inner folded edge according to claim 7, characterized in that: On the fifth pressing plate (45) and at positions corresponding to a set of front half - die buffer and reset devices (454), front half - die buffer and reset device mounting holes (456) are spaced apart for setting the set of front half - die buffer and reset devices (454). And at positions corresponding to a set of rear half - die buffer and reset devices (455), rear half - die buffer and reset device mounting holes (457) are spaced apart for setting the set of rear half - die buffer and reset devices (455). The set of front half - die buffer and reset devices (454) are arranged in the set of front half - die buffer and reset device mounting holes (456) and are in contact with the front side of the front half - die (91). The set of rear half - die buffer and reset devices (455) are arranged in the set of rear half - die buffer and reset device mounting holes (457) and are in contact with the rear side of the rear half - die (92).

9. The processing device for the upper connecting plate of an automotive seat adjuster with an inner folded edge according to claim 8, characterized in that: Each of the set of front half - die buffer and reset devices (454) includes a front half - die contact ejector pin (4541), an ejector pin spring (4542), and a spring support plug (4543). The front half - die contact ejector pin (4541) is arranged at the bottom of the front half - die buffer and reset device mounting hole (456), and the rear end of the front half - die contact ejector pin (4541) is in contact with the front side of the front half - die (91). The ejector pin spring (4542) is arranged between the front half - die contact ejector pin (4541) and the spring support plug (4543). The rear end of the ejector pin spring (4542) is supported on the front end face of the front half - die contact ejector pin (4541), and the front end of the ejector pin spring (4542) is supported on the spring support plug (4543). The spring support plug (4543) is fixed to the orifice part at the front end of the front half - die buffer and reset device mounting hole (456).

10. The processing device for the upper connecting plate of an automotive seat adjuster with an inner folded edge according to claim 1, characterized in that: At the bottom of the workbench fixed connecting plate (2) and at positions corresponding to the length direction of the lower buffer mechanism (7), a spring limit plate groove (22) is formed. And lower buffer spring holes (23) are spaced apart along the length direction of the spring limit plate groove (22). The lower buffer mechanism (7) includes a lower buffer spring support plate (71), a lower buffer seat (72), and a set of lower buffer springs (73). The lower buffer spring support plate (71) is embedded in the spring limit plate groove (22) and is fixed to the workbench fixed connecting plate (2) by lower buffer spring support plate fixing screws (711). The lower buffer seat (72) is arranged in the lower die cavity (61), and on the downward - facing side in the length direction of the lower buffer seat (72), lower buffer seat floating guide posts (721) are fixed at intervals. The lower buffer seat floating guide posts (721) are in up - and - down sliding fit with floating guide post guiding sliding holes (24) formed in the workbench fixed connecting plate (2). The set of lower buffer springs (73) are distributed at intervals along the length direction of the lower buffer seat (72). The lower ends of the set of lower buffer springs (73) pass through the lower buffer spring holes (23) and are supported on the lower buffer spring support plate (71), while the upper ends are supported on the downward - facing side of the lower buffer seat (72).

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