Flanging and sizing die for front headrest bracket of automobile and die processing method thereof

Abstract

The present invention discloses a flanging and shaping die for the front-row headrest bracket of an automobile and a die processing method thereof, including a flanging die and a shaping die; the flanging die includes a flanging lower die and a flanging upper die; a mating stepped notch is formed on the flanging lower die, and an extrusion convex block engaged with the stepped notch is arranged on the flanging upper die; the extrusion convex block punches one side of the headrest bracket to be bent into the stepped notch to form a flanging bottom edge; the shaping die includes a shaping limiting lower module and a shaping upper module. When the headrest bracket is limited on the shaping lower module, the flanging bottom edge corresponds to the shaping notch position of the shaping limiting lower module, and the shaping upper module moves to push the shaping block to be embedded into the shaping notch, so as to punch and shape the flanging bottom edge. The present invention provides a flanging and shaping die for the front-row headrest bracket of an automobile and a die processing method thereof. The shaping block is pushed by a pushing block to perform shaping processing on the flanging position of the headrest bracket, so as to strengthen the shaping degree and improve the installation stability.

Description

Technical Field

[0001] The present invention relates to the field of flanging and shaping dies for the front row headrest brackets of automobiles. Background Art

[0002] The production of the front row headrest brackets of automobiles requires flanging and shaping the preformed headrest brackets after processing through a flanging die and a shaping die. The existing flanging die and shaping die perform shaping after flanging. After the shaping die shapes the flanging position of the headrest bracket, there is a situation where the shaping degree is insufficient, resulting in a phenomenon that the stability after installation is insufficient. Summary of the Invention

[0003] Object of the Invention: In order to overcome the deficiencies in the prior art, the present invention provides a flanging and shaping die for the front row headrest brackets of automobiles and a die processing method thereof. The shaping block is pushed by a pushing block to shape the flanging position of the headrest bracket, so as to enhance the shaping degree and improve the stability of installation.

[0004] Technical Solution: To achieve the above object, the technical solution of the present invention is as follows:

[0005] The flanging and shaping die for the front row headrest brackets of automobiles includes a flanging die and a shaping die; the flanging die includes a flanging lower die and a flanging upper die that cooperate with each other; a matching stepped notch is provided on the flanging lower die, and an extrusion convex block that fits into the stepped notch is provided on the flanging upper die; the extrusion convex block punches one side of the headrest bracket to bend it into the stepped notch to form a flanging bottom edge; the shaping die includes a shaping limiting lower module and a shaping upper module. When the headrest bracket is limited on the shaping lower module, the flanging bottom edge corresponds to the shaping notch position of the shaping limiting lower module, and the shaping upper module moves to push the shaping block into the shaping notch, so as to be able to punch and shape the flanging bottom edge.

[0006] Furthermore, the flanging lower die is arranged on a lower backing plate, the lower backing plate is fixed on a lower template, and the lower template is fixed on a lower bottom plate through a plurality of support plates; the flanging lower die includes a first module and a second module, and the first module and the second module are arranged in a spliced manner; movable holes are penetrated through the lower template and the lower backing plate, and a plurality of lifting shafts of a driving device on the lower bottom plate penetrate through the movable holes and are respectively fixed at the bottoms of the first module and the second module; the second module is arranged lower than the first module, and a stepped notch is formed between the first module and the second module.

[0007] Further, a convex module body is provided on the top of the first module. The convex module body is disposed towards the position of the second module. An inner groove is provided in the middle of the convex module body. The edge of the convex module body is C-shaped. One end face of the convex module body is flush with the stepped notch. The inner groove communicates with the stepped notch. A raised block is provided in the inner groove. The raised block is located at one end edge of the stepped notch. The surface of the raised block is inclined. A convex rib body is integrally provided on the side of the convex module body. The convex rib body is disposed away from the stepped notch.

[0008] Further, a relative block body and a limiting block body are fixedly provided on the lower backing plate. The relative block body is disposed at the position of one side wall of the first module. The top surface of the relative block body is lower than the surface of the first module. The limiting block body is fixed at the position of one side wall of the second module. The relative block body and the limiting block body are disposed opposite to each other. The top surface of the limiting block body is higher than the surface of the first module. A region corresponding to the extrusion convex block is formed among the first module, the second module and the limiting block body.

[0009] Further, an embedding groove along the direction of the convex rib body is provided in the middle of the surface of the second module. The embedding groove is located between the first module and the limiting block body. The mating block body on the flanging upper die is correspondingly disposed with the first module. A fitting groove corresponding to the convex module body is provided on the mating block body. And a fitting block body corresponding to the inner groove and the raised block is provided in the fitting groove. The extrusion convex block and the mating block body are correspondingly and spliced on the upper fixing plate. And a rectangular spring is provided between the extrusion convex block and the mating block body and the upper fixing plate. The upper fixing plate is fixed on the upper template.

[0010] The middle of the extrusion convex block protrudes as a stamping block. The stamping block is correspondingly disposed with the embedding groove. The cross section of the stamping block is trapezoidal. A plurality of notches are provided at the connection position of the inner groove and the stepped notch. Convex points corresponding to the notches are provided on the fitting block body. An outer convex starting point is fixedly provided on the bottom edge of the stepped notch. A concave point corresponding to the outer convex starting point is provided on the extrusion convex block. The plurality of notches and the outer convex starting points are located on both sides of the embedding groove. A flanging bottom edge is formed in the embedding region of one side edge of the extrusion convex block corresponding to the headrest bracket.

[0011] Further, the shaping and limiting lower module includes a lower shaping module provided on a shaping fixing plate. A shaping notch is correspondingly provided on one side of the lower shaping module. A lower embedding notch is provided on one side of the shaping notch. The headrest bracket is correspondingly embedded in the shaping notch. And the flanging bottom edge is embedded in the lower embedding notch. A shaping block is provided at the open position of the lower embedding notch. An installation block is provided on the shaping fixing plate. A driving rod on the installation block is drivingly connected to one end of the shaping block away from the lower shaping module. The shaping block is movably provided on the shaping fixing plate.

[0012] Further, a chute opening is formed in the middle of the lower insertion opening, the bottom of the shaping block is slidably inserted into the chute opening, and a spacing is provided between the shaping block and the inner wall of the lower insertion opening; the upper shaping module is arranged on the upper shaping backing plate through a rectangular spring, a corresponding inner groove corresponding to the shaping groove opening is formed in the upper shaping module, a mating sliding opening is formed in one side wall of the corresponding inner groove, and the top of the shaping block is correspondingly and slidably engaged in the mating sliding opening; a plurality of pressing blocks are arranged on the upper shaping module, and the plurality of pressing blocks are located between the two sides of the lower insertion opening and the shaping block.

[0013] Further, the upper shaping backing plate is fixed on the shaping fixing module, a pushing block is fixedly arranged on the shaping fixing module, a spacing is provided between the pushing block and the mating sliding opening, and a first sliding surface is arranged on one side of the pushing block corresponding to the mating sliding opening; a second sliding surface corresponding to the first sliding surface is formed in the shaping block; when the upper shaping module and the lower shaping module are in relative cooperation, the pushing block uses the first sliding surface to cooperate with the second sliding surface to urge the shaping block to move and extrude and shape the bottom edge of the flanging.

[0014] Further, the mold processing method is as follows:

[0015] The first step: Place the headrest bracket on the convex module body, and make the side of the headrest bracket to be flanged be at the stepped groove opening formed by the first module and the second module, and the headrest bracket is fitted on the convex module body;

[0016] The second step: When stamping and flanging, the fitting block body cooperates with the first module to press and limit the headrest bracket, and at the same time, the extrusion convex block correspondingly pushes the side of the headrest bracket into the stepped groove opening, so as to stamp and form the bottom edge of the flanging;

[0017] The third step: Remove the headrest bracket after the flanging mold processing, then insert the headrest bracket into the shaping groove opening, and make the flanging bottom plate be at the position of the lower insertion opening, and then the driving device drives the shaping block to approach the bottom edge of the flanging through the driving rod, and the shaping block abuts against the side wall of the bottom edge of the flanging;

[0018] The fourth step: When starting the shaping process, the upper shaping module and the lower shaping module cooperate to limit the headrest bracket, and at the same time, the first sliding surface of the pushing block contacts and cooperates with the second sliding surface, so as to urge the shaping block to extrude the flanging bottom plate, and further the bottom edge of the flanging can be shaped.

[0019] Beneficial effects: When manufacturing the front headrest bracket of a vehicle, a blanking die is first used to punch a sheet material into a blank, and then a forming die is used to process the blank into a grooved sheet body with a certain shape. Next, a flanging die is used to perform flanging on one side of the grooved sheet body, and after processing, a flanging bottom edge is formed on one side of the grooved sheet body. Finally, a sizing die is used to perform sizing on the position of the flanging bottom edge so that the structure after sizing forms the headrest bracket to be produced; among them, the flanging lower die and the flanging upper die of the flanging die cooperate with each other to perform flanging on the corresponding side of the grooved sheet body, and the extrusion bump of the flanging upper die correspondingly punches one side of the headrest bracket into the stepped notch, so that the flanging bottom edge can be processed; when processing the flanging bottom edge through the sizing die, the headrest bracket is first fixed at the position of the sizing notch, and then the sizing block is pushed to punch and size the position of the flanging bottom edge, so as to produce a headrest bracket with a required shape, and the concave and convex parts on the headrest bracket can correspondingly fit and be installed on the corresponding components, and then fixed and installed, thereby increasing the stability of the installation. Description of the Drawings

[0020] Attached Figure 1 is the structure diagram of the flanging upper die;

[0021] Attached Figure 2 is the structure diagram of the stepped notch;

[0022] Attached Figure 3 is the structure diagram of the flanging lower die;

[0023] Attached Figure 4 is the structure diagram of the second module;

[0024] Attached Figure 5 is the structure diagram of the extrusion bump;

[0025] Attached Figure 6 is the structure diagram of the flanging die;

[0026] Attached Figure 7 is the structure diagram of the limiting lower module;

[0027] Attached Figure 8 is the structure diagram of the sizing notch;

[0028] Attached Figure 9 is the structure diagram of the sizing upper module;

[0029] Attached Figure 10 is the structure diagram of the corresponding groove;

[0030] Attached Figure 11 is the structure diagram of the sizing die. Detailed Implementation Manner

[0031] The present invention will be further described below with reference to the accompanying drawings.

[0032] As attached Figures 1-11 : The flanging and shaping die for the front row headrest bracket of an automobile, including a flanging die and a shaping die; the flanging die includes a flanging lower die 1 and a flanging upper die 2 which are relatively matched; a mating stepped notch 11 is formed on the flanging lower die 1, and an extrusion convex block 21 which is fitted with the stepped notch 11 is arranged on the flanging upper die 2; the extrusion convex block 21 punches one side of the headrest bracket 3 to be bent into the stepped notch 11 to form a flanged bottom edge 31; the shaping die includes a shaping limiting lower module 4 and a shaping upper module 5. When the headrest bracket 3 is limited on the shaping lower module 4, the flanged bottom edge 31 corresponds to the position of the shaping notch 41 of the shaping limiting lower module 4. The shaping upper module 5 moves to push the shaping block 51 into the shaping notch 41, so as to punch and shape the flanged bottom edge 31. When producing the front row headrest bracket of an automobile, first use a blanking die to punch a sheet into a blank, then use a forming die to process the blank into a grooved sheet body with a certain shape, then use the flanging die to perform flanging processing on one side of the grooved sheet body. After processing, a flanged bottom edge is formed on one side of the grooved sheet body. Finally, use the shaping die to perform shaping processing at the position of the flanged bottom edge, so that the structure after shaping processing forms the headrest bracket to be produced; wherein the flanging lower die and the flanging upper die of the flanging die are relatively matched to perform flanging processing on the corresponding side edge of the grooved sheet body, and the extrusion convex block of the flanging upper die correspondingly punches one side edge of the headrest bracket to be embedded into the stepped notch, so as to be able to process the flanged bottom edge; when processing the flanged bottom edge through the shaping die, first fix the headrest bracket at the position of the shaping notch, and then push the shaping block to punch and shape the position of the flanged bottom edge, so as to produce a headrest bracket with a required shape. The concave and convex parts on the headrest bracket can be correspondingly adapted to be installed on the corresponding parts, and then fixed and installed, thereby increasing the installation stability.

[0033] The flanging lower die 1 is arranged on a lower backing plate 12, the lower backing plate 12 is fixed on a lower template 13, and the lower template 13 is fixed on a lower bottom plate through a plurality of support plates; the flanging lower die 1 includes a first module 14 and a second module 15, and the first module 14 and the second module 15 are arranged in a spliced manner; through holes 121 are formed through the lower template 13 and the lower backing plate 12, and a plurality of lifting shafts 14 of a driving device on the lower bottom plate respectively pass through the through holes 121 and are fixed at the bottoms of the first module 14 and the second module 15; the second module 15 is arranged lower than the first module 14, and a stepped notch 11 is formed between the first module 14 and the second module 15. Lifting shafts are respectively arranged at the bottoms of the first module and the second module. Before flanging processing is required, the heights of the lifting shafts at the bottoms of the first module and the second module can be adjusted, so as to adjust the heights of the first module and the second module, and further be able to adjust the height of the stepped notch; after flanging processing production, the depth of the flanged bottom edge of the headrest bracket can be adjusted.

[0034] A convex module body 141 is provided at the top of the first module 14. The convex module body 141 is disposed to be biased towards the second module 15. An inner groove 142 is provided in the middle of the convex module body 141. The edge of the convex module body 141 is C-shaped. One end face of the convex module body 141 is flush with the stepped notch 11. The inner groove 142 communicates with the stepped notch 11. A raised block 143 is provided in the inner groove 142. The raised block 143 is located at one end edge position of the stepped notch 11. The surface of the raised block 143 is inclined. A convex rib body 144 is integrally provided on the side of the convex module body 141. The convex rib body 144 is disposed away from the stepped notch 11. The formed grooved sheet body is placed on the convex module body, and the concave and convex parts of the grooved sheet body respectively correspond to the positions of the raised block and the convex rib body, which can correspondingly limit the grooved sheet body. At the same time, it can make the position of the grooved sheet body to be flanged correspond to the position of the stepped notch. Then, after stamping and flanging, the extrusion convex block can correspondingly punch the part to be stamped into the stepped notch to complete the flanging process. The concave part of the extrusion convex block can correspondingly correspond to the positions of the raised block and the convex rib body, so as to cooperate up and down to squeeze and clamp the grooved sheet body, which is convenient for flanging processing.

[0035] A relative block body 122 and a limit block body 123 are fixedly provided on the lower backing plate 12. The relative block body 122 is disposed at a side wall position of the first module 14. The top surface of the relative block body 122 is lower than the surface of the first module 14. The limit block body 123 is fixed at a side wall position of the second module 15. The relative block body 122 and the limit block body 123 are disposed opposite to each other. The top surface of the limit block body 123 is higher than the surface of the first module 14. A region 124 corresponding to the extrusion convex block 21 is formed among the first module 14, the second module 15 and the limit block body 123. The relative block body and the limit block body are disposed on the opposite sides of the first module and the second module, so that the first module and the second module can be limited, ensuring that the first module and the second module can be more closely joined together, thus avoiding the phenomenon that gaps are easily generated between the first module and the second module, resulting in differences in the flanging positions. At the same time, the formed region corresponds to the position of the grooved sheet body to be flanged. When flanging processing is carried out, it is convenient for the flanging bottom edge to be embedded into the region. And the limit block body is higher than the relative block body. During stamping, the limit block body can relatively guide the extrusion convex block to ensure that the extrusion convex block can be correspondingly embedded into the region, avoiding the misalignment phenomenon between the extrusion convex block and the stepped notch.

[0036] A middle part of the surface of the second module 15 is provided with an embedding groove 151 along the direction of the convex rib body 144, and the embedding groove 151 is located between the first module 14 and the limit block body 123; a matching block body 22 on the flanging upper die 2 is correspondingly arranged with the first module 14, an engaging groove 221 corresponding to the convex module body 141 is arranged on the matching block body 22, and an engaging block body 222 corresponding to the inner groove 142 and the protruding block 143 is arranged in the engaging groove 221; the extrusion convex block 21 and the matching block body 22 are correspondingly and spliced on the upper fixing plate 23, and a rectangular spring is arranged between the extrusion convex block 21 and the matching block body 22 and the upper fixing plate 23, and the upper fixing plate 23 is fixed on the upper template 24; the engaging block body and the first module correspondingly clamp the grooved sheet body, and then the extrusion convex block performs stamping, so as to stamp out the flanging bottom edge.

[0037] A middle part of the extrusion convex block 21 protrudes to form a stamping block 211, the stamping block 211 is correspondingly arranged with the embedding groove 151, and the cross section of the stamping block 211 is trapezoidal; a plurality of notches 111 are arranged at a connection position between the inner groove 142 and the stepped notch 11, and convex points corresponding to the notches 111 are arranged on the engaging block body 22; an outer convex starting point 112 is fixedly arranged on a bottom edge of the stepped notch 11, and a concave point corresponding to the outer convex starting point 122 is arranged on the extrusion convex block 21; the plurality of notches 111 and the outer convex starting point 112 are located on two sides of the embedding groove 151; one side embedding area 124 of the extrusion convex block 21 corresponding to the stamping headrest bracket 3 forms a flanging bottom edge 31; the extrusion convex block moves and embeds into the area to stamp out the flanging bottom edge. During stamping, the stamping block correspondingly embeds into the embedding groove, and the stamping block can punch the middle position of the flanging bottom edge, so as to form a notch at the middle position of the edge of the flanging bottom edge, which is convenient for installation after processing.

[0038] The shaping and limiting lower module 4 includes a lower shaping module 43 arranged on a shaping fixing plate 42, a shaping notch 41 is correspondingly opened on one side of the lower shaping module 43, a lower embedding notch 411 is opened on one side of the shaping notch 41, the headrest bracket 3 is correspondingly embedded in the shaping notch 41, and the flanging bottom edge 31 is embedded in the lower embedding notch 411; a shaping block 51 is arranged at an open position of the lower embedding notch 411; a mounting block 44 is arranged on the shaping fixing plate 42, and a driving rod 441 on the mounting block 44 is drivingly connected with one end of the shaping block 51 far away from the lower shaping module 43; the shaping block 51 is movably arranged on the shaping fixing plate 42. The headrest bracket after flanging processing is placed into the shaping notch, and the flanging bottom edge is correspondingly aligned with the position of the lower embedding notch, so that the headrest bracket can be limited. Then, the driving device on the mounting block causes the driving rod to drive the shaping block to approach the flanging bottom edge position to press against the flanging bottom edge, and the shaping block performs shaping processing on the corresponding position of the flanging bottom edge.

[0039] A chute opening 412 is formed in the middle of the lower insertion opening 411. The bottom of the shaping block 51 is slidably inserted into the chute opening 412, and a spacing is provided between the shaping block 51 and the inner wall of the lower insertion opening 411. The shaping upper module 5 is arranged on the shaping upper backing plate 52 through a rectangular spring. A corresponding inner groove 53 corresponding to the shaping groove opening 41 is formed in the shaping upper module 5. A mating sliding opening 413 is formed on one side wall of the corresponding inner groove 53. The top of the shaping block 51 is correspondingly and slidably engaged in the mating sliding opening 413. A plurality of pressing blocks 54 are arranged on the shaping upper module 5, and the plurality of pressing blocks 54 are located between the two sides of the lower insertion opening 411 and the shaping block 51. During shaping processing, the shaping groove opening and the corresponding inner groove are relatively matched to clamp the headrest bracket, and the bottom edge of the flanging corresponds to the position of the lower insertion opening. At the same time, the shaping block is correspondingly inserted into the chute opening and the mating sliding opening, so as to play a guiding role in the shaping block, facilitating the shaping block to accurately perform shaping processing on the middle position of the bottom edge of the flanging. At the same time, the pressing blocks on the shaping upper module correspondingly press on both sides of the bottom edge of the flanging, which can well stabilize the bottom edge of the flanging. During shaping, it can effectively prevent the bottom edge of the flanging from moving, and avoid deformation at the shaping position.

[0040] The shaping upper backing plate 52 is fixed on the shaping fixing module 55. A pushing block 56 is fixedly arranged on the shaping fixing module 55. A spacing is provided between the pushing block 56 and the mating sliding opening 413. A first sliding surface 561 is arranged on one side of the pushing block 56 corresponding to the mating sliding opening 413. A second sliding surface 511 corresponding to the first sliding surface 561 is formed on the shaping block 51. When the shaping upper module 5 and the lower shaping module 43 are relatively matched, the pushing block 56 uses the first sliding surface 561 to cooperate with the second sliding surface 511 to promote the movement of the shaping block 51 to extrude and shape the bottom edge of the flanging 31. During shaping processing, first, the driving rod drives the shaping block to slide in the chute opening and the mating sliding opening to the position of the bottom edge of the flanging. Then, during the downward movement of the extrusion convex block, the pushing block can use the first sliding surface to cooperate with the second sliding surface to promote the further movement of the shaping block, so that the shaping block can correspondingly perform stamping and shaping on the position of the bottom edge of the flanging. During the process of the pushing block pushing the shaping block to extrude the bottom edge of the flanging, since the driving rod drives the shaping block to move and press the bottom edge of the flanging, the shaping block will have a certain degree of retraction. And during the downward movement of the pushing block, it fills the space between the mounting block and the shaping block, so as to make up for the degree of retraction of the shaping block, ensure sufficient shaping degree, and effectively improve the shaping effect.

[0041] The mold processing method is as follows:

[0042] The first step: Place the headrest bracket 3 on the convex module body 141, and make the side of the headrest bracket 3 to be flanged be at the position of the stepped notch 11 formed by the first module 14 and the second module 15. The headrest bracket 3 is fitted on the convex module body 141; thereby, the headrest bracket can be stably positioned on the convex module body, facilitating the pressing of the convex block to perform stamping and flanging processing on the side to be flanged.

[0043] The second step: When performing stamping and flanging, the fitting block 22 cooperates with the first module 14 to press and limit the headrest bracket 3. At the same time, the extrusion convex block 21 correspondingly pushes the side of the headrest bracket 3 to be embedded into the stepped notch 11, thereby stamping and forming the flanged bottom edge 31; the extrusion convex block extrudes the side of the headrest bracket into the stepped notch, prompting the side of the headrest bracket to be folded, thereby forming the flanged bottom edge, effectively improving the stamping speed, and the flanged bottom edge formed by stamping is convenient for subsequent shaping processing.

[0044] The third step: Remove the headrest bracket 3 after being processed by the flanging die, then embed the headrest bracket 3 into the shaping notch 41, and make the flanged bottom plate 31 be at the position of the lower insertion opening 411. Then, the driving device drives the shaping block 51 to approach the flanged bottom edge 31 through the driving rod 441, and the shaping block 51 abuts against the side wall of the flanged bottom edge 31; after the headrest bracket is processed with flanging to produce the flanged bottom edge, during shaping processing, the headrest bracket is placed in the shaping notch, and the flanged bottom edge is made to be at the position of the lower insertion opening, so that the headrest bracket can be stably positioned, and then the shaping block correspondingly moves to perform stamping and shaping on the position of the flanged bottom edge.

[0045] The fourth step: When starting the shaping processing, the upper shaping module 5 and the lower shaping module 43 cooperate to limit the headrest bracket 3. At the same time, the first sliding surface 561 of the pushing block 56 is in contact and cooperation with the second sliding surface 511, prompting the shaping block 51 to extrude the flanged bottom plate 31, and then the flanged bottom edge 31 can be shaped; the flanged bottom edge of the headrest bracket corresponds to the position of the lower insertion opening, and then the shaping block correspondingly moves and presses against the flanged bottom edge. After that, the pushing block moves downward under the drive of the upper shaping module, so that the first sliding surface of the pushing block and the second sliding surface on the shaping block move in relative cooperation. The pushing block can push the shaping block to perform stamping and shaping on the flanged bottom edge, and the pushing block can limit the shaping block from retreating, avoiding the phenomenon that the shaping degree is insufficient after the shaping block performs shaping processing.

[0046] The above are only the preferred implementation schemes of the present invention and are not intended to limit the present invention. For those of ordinary skill in the art, without departing from the above principles of the present invention, several improvements and changes can still be made, and these improvements and changes are also regarded as the protection scope of the present invention.

Claims

1. Flanging and shaping die for the front headrest bracket of an automobile, characterized in that: The invention comprises a flanging die and a shaping die; the flanging die comprises a flanging lower die (1) and a flanging upper die (2) which are matched with each other; the flanging lower die (1) is provided with a matching stepped notch (11), and the flanging upper die (2) is provided with an extrusion protrusion (21) which is engaged with the stepped notch (11); the extrusion protrusion (21) presses one side of the headrest bracket (3) to bend into the stepped notch (11), thereby forming a flanging bottom edge (31); the shaping die comprises a shaping limiting lower module (4) and a shaping upper module (5); when the headrest bracket (3) is limited on the shaping limiting lower module (4), the flanging bottom edge (31) corresponds to the position of the shaping notch (41) of the shaping limiting lower module (4), and the shaping upper module (5) moves to push the shaping block (51) to be embedded in the shaping notch (41), thereby stamping and shaping the flanging bottom edge (31); The flanging lower die (1) is arranged on a lower pad (12), the lower pad (12) is fixed on a lower template (13), and the lower template (13) is fixed on a lower base plate via a plurality of support plates; the flanging lower die (1) comprises a first module (14) and a second module (15), the first module (14) and the second module (15) being arranged in a spliced ​​manner; a movable hole (121) is formed through the lower template (13) and the lower pad (12), a plurality of lifting shafts of a driving device on the lower base plate pass through the movable hole (121) and are respectively fixed to the bottom of the first module (14) and the second module (15); the second module (15) is arranged lower than the first module (14), and a stepped notch (11) is formed between the first module (14) and the second module (15).

2. The flanging and shaping die for the front headrest bracket of an automobile according to claim 1, characterized in that: A convex module body (141) is arranged on the top of the first module (14), the convex module body (141) is arranged towards the position of the second module (15), an inner groove (142) is arranged in the middle of the convex module body (141), the edge of the convex module body (141) is C-shaped, one end surface of the convex module body (141) is arranged flush with the stepped groove (11), and the inner groove (142) is connected to the stepped groove (11); a protruding block (143) is arranged in the inner groove (142), the protruding block (143) is located at the edge of one end of the stepped groove (11), the surface of the protruding block (143) is inclined, and a convex prism (144) is integrally arranged on the side of the convex module body (141), and the convex prism (144) is arranged away from the stepped groove (11).

3. The flanging and sizing die for the front headrest bracket of an automobile according to claim 2, wherein: The lower backing plate (12) is fixedly provided with a relative block (122) and a limiting block (123). The relative block (122) is arranged at a side wall position of the first module (14), and the top surface of the relative block (122) is lower than the surface of the first module (14). The limiting block (123) is fixed at a side wall position of the second module (15), and the relative block (122) and the limiting block (123) are arranged opposite to each other. The top surface of the limiting block (123) is higher than the surface of the first module (14). A region (124) corresponding to the extrusion bump (21) is formed among the first module (14), the second module (15) and the limiting block (123).

4. The flanging and sizing die for the front headrest bracket of an automobile according to claim 3, characterized in that: An embedding groove (151) along the direction of the convex rib body (144) is formed in the middle of the surface of the second module (15). The embedding groove (151) is located between the first module (14) and the limiting block (123). A matching block (22) on the flanging upper die (2) is arranged corresponding to the first module (14). An engaging groove (221) corresponding to the convex module body (141) is formed on the matching block (22), and an engaging block (222) corresponding to the inner groove (142) and the protruding block (143) is arranged in the engaging groove (221). The extrusion bump (21) and the matching block (22) are correspondingly and spliced on the upper fixing plate (23), and a rectangular spring is arranged between the extrusion bump (21), the matching block (22) and the upper fixing plate (23). The upper fixing plate (23) is fixed on the upper template (24). The middle of the extrusion bump (21) protrudes to form a stamping block (211). The stamping block (211) is arranged corresponding to the embedding groove (151), and the cross section of the stamping block (211) is trapezoidal. A plurality of notches (111) are arranged at the connection position between the inner groove (142) and the stepped notch (11). Convex points corresponding to the notches (111) are arranged on the engaging block (22). An outer convex starting point (112) is fixedly arranged on the bottom edge of the stepped notch (11). A concave point corresponding to the outer convex starting point (122) is arranged on the extrusion bump (21). The plurality of notches (111) and the outer convex starting points (112) are located on both sides of the embedding groove (151). One side of the extrusion bump (21) corresponding to the stamping headrest bracket (3) is embedded into the region (124) to form a flanging bottom edge (31).

5. The flanging and shaping die for the front headrest bracket of an automobile according to claim 4, characterized in that: The integer limiting module (4) includes a lower integer shaping module (43) arranged on an integer fixing plate (42). One side of the lower integer shaping module (43) is correspondingly provided with an integer shaping notch (41). One side of the integer shaping notch (41) is provided with a lower embedding notch (411). The headrest bracket (3) is correspondingly embedded in the integer shaping notch (41), and the bottom edge of the flanging (31) is embedded in the lower embedding notch (411). An integer shaping block (51) is arranged at the open position of the lower embedding notch (411). An installation block (44) is arranged on the integer fixing plate (42). A driving rod (441) on the installation block (44) is drivingly connected to one end of the integer shaping block (51) away from the lower integer shaping module (43). The integer shaping block (51) is movably arranged on the integer fixing plate (42).

6. The flanging and shaping die for the front headrest bracket of an automobile according to claim 5, characterized in that: A sliding groove notch (412) is formed in the middle of the lower embedding notch (411). The bottom of the integer shaping block (51) is slidably embedded in the sliding groove notch (412), and the distance between the integer shaping block (51) and the inner wall of the lower embedding notch (411) is set. The upper integer shaping module (5) is arranged on an upper integer padding plate (52) through a rectangular spring. A corresponding inner groove (53) corresponding to the integer shaping notch (41) is formed in the upper integer shaping module (5). A matching sliding port (413) is formed in one side wall of the corresponding inner groove (53). The top of the integer shaping block (51) is correspondingly slidably embedded in the matching sliding port (413). A plurality of pressing blocks (54) are arranged on the upper integer shaping module (5). The plurality of pressing blocks (54) are located between both sides of the lower embedding notch (411) and the integer shaping block (51).

7. The flanging and shaping die for the front headrest bracket of an automobile according to claim 6, characterized in that: The upper integer padding plate (52) is fixed on an integer fixing module (55). A pushing block (56) is fixedly arranged on the integer fixing module (55). The distance between the pushing block (56) and the matching sliding port (413) is set. A first sliding surface (561) is arranged on one side of the pushing block (56) corresponding to the matching sliding port (413). A second sliding surface (511) corresponding to the first sliding surface (561) is formed on the integer shaping block (51). When the upper integer shaping module (5) and the lower integer shaping module (43) are relatively matched, the pushing block (56) uses the first sliding surface (561) to cooperate with the second sliding surface (511) to prompt the integer shaping block (51) to move and extrude and shape the bottom edge of the flanging (31).

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