A compound die for realizing same-sequence edge trimming, upturning and side turning and a stamping process thereof

Abstract

The application discloses a kind of composite mould and process for realizing same-sequence trimming and side flipping, and its mould includes upper die body and lower die body, the lower die body is equipped with male die and lower die core, the lower part of the upper die body is equipped with upper pressing core, the male die is formed floating male die structure on lower die core, the lower die body is equipped with lower die cutting and flipping cutter block by male die edge, the lower part of the upper die body is equipped with upper die trimming cutter block corresponding lower die cutting and flipping cutter block;The upper die body is equipped with hanging wedge corresponding upper pressing core side edge, the lower die core is equipped with rotating inclined wedge corresponding hanging wedge, the inside of hanging wedge is equipped with side flipping cutter block.This design solves the problem of insufficient structural design space and poor strength, and meets the side flipping and trimming of top cover at the same time, reduces cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile stamping trimming and shaping die, in particular to a composite die for realizing same-sequence trimming and upturning and side-turning and a stamping process thereof. BACKGROUND

[0002] At present, in the stamping process design of automobile die, the automobile roof is a kind of cover part with complex process. Nowadays, the process technology of outer cover part is relatively mature, and the rotating wedge or steering wedge is usually designed for the side-turning structure of the two sides of the roof to realize side-turning, and the double-live structure of floating punch or upturning wedge can be used for tail upturning. Under the condition of normal number of processes, the tail trimming and upturning of the roof and the side-turning of the roof beam are completed in different sequences, and the waste material is trimmed after the tail side-turning, and the side-turning of the roof beam and the tail upturning are completed in the next process.

[0003] With the improvement of customer requirements and the promotion of cost saving, the reduction of roof process number often causes the process arrangement to become compact, in order to ensure the smooth production of parts, the tail trimming and upturning of the roof are completed in the same sequence, and the side-turning of the roof beam is also carried out in the same sequence, thereby reducing the number of processes and reducing the cost.

[0004] If the tail and the side-turning are trimmed and upturned in the same sequence, the upturning wedge cannot be used due to the fixed form and structural space of the lower die trimming edge, and if the double-live structure of floating punch is used, the conventional side-turning structure of the two sides of the roof beam will have insufficient space and poor strength, which is difficult to realize. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a composite die for realizing same-sequence trimming and upturning and side-turning and a stamping process thereof, which can complete the side-turning and tail trimming and upturning of the stamping part in the same sequence.

[0006] In order to solve the above technical problems, the technical scheme adopted by the present application is as follows:

[0007] A composite die for realizing same-sequence trimming and upturning and side-turning, comprising an upper die body and a lower die body, a punch and a lower die core are arranged on the lower die body, an upper pressure core is arranged on the lower part of the upper die body, the punch is arranged on the lower die core to form a floating punch structure, a lower die trimming and turning knife block is arranged on the lower die body near the edge of the punch, and an upper die trimming knife block is arranged on the lower part of the upper die body corresponding to the lower die trimming and turning knife block; a lifting wedge is arranged on the upper die body corresponding to the side edge of the upper pressure core, a rotating wedge is arranged on the lower die core corresponding to the lifting wedge, and a side-turning knife block is arranged on the inner side of the lifting wedge.

[0008] An upper die spring is arranged between the upper pressure core and the upper die body.

[0009] A lower die spring is arranged between the lower die core and the lower die body.

[0010] The inner side of the lower die cutting and turning knife block is provided with a turning bevel corresponding to the edge of the male die, and the top end of the turning bevel forms a cutting edge.

[0011] The rotating wedge is arranged on the lower die core through a driving seat, and the rotating shaft of the rotating wedge is arranged on the lower die core.

[0012] The inner side of the hanging wedge is provided with a knife block mounting surface and a knife block back drag, and the side turning knife block is arranged on the knife block mounting surface.

[0013] The upper die cutting edge knife block is located on the outer side of the lower die cutting and turning knife block.

[0014] The rotating wedge is provided with a knife block mounting surface and a knife block back drag corresponding to the hanging wedge, and the side turning knife block is arranged on the knife block mounting surface.

[0015] A process using the composite die for realizing simultaneous cutting edge turning and side turning, comprising the following steps:

[0016] S1, the upper die moves with the pressing core, the hanging wedge carries the upper side shaping knife block, the shaping knife block moves downward; after a period of time, the pressing core and the male die of the lower die begin to contact, the lower die spring begins to compress before the pressing core presses the plate; at this time, the upper die hanging wedge pressing plate presses the rotating wedge to rotate, but the rotating shaft has not rotated in place; the cutting edge knife block has not contacted the plate;

[0017] S2, after the material is pressed, the press continues to move downward, the lower core spring begins to compress, the cutting edge knife block begins to contact the lower die edge, and the trimming begins; when the cutting edge knife block completely enters the lower die edge, the upper turning edge knife block of the lower die begins to contact the plate; finally, when the lower core spring compression is completed, the turning is completed; the cutting waste is slid to the outside of the die through the waste slide;

[0018] S3, after the lower core spring compression is completed, the press continues to move downward at the same time; the upper die pressing core spring begins to compress, in the process, the upper die hanging wedge carries the side turning knife block and continues to move downward, before the side turning knife block contacts the plate, the lower die rotating wedge is pressed to rotate in place by the hanging wedge pressing plate, and the side turning edge begins; finally, when the pressing core spring compression is completed, the side turning edge is completed.

[0019] Compared with the prior art, the present application has the following advantages:

[0020] The composite die for realizing simultaneous cutting edge turning and side turning and the stamping process thereof are reasonable in design, the floating male die structure is adopted for the lower die turning, the upper and lower cutting and turning knife blocks are arranged on the lower die body, the rotating wedge is adopted for the side turning, the driving seat of the rotating wedge is directly designed on the lower die core, the rotating shaft is arranged on the core, the rotating wedge is ensured to move up and down with the core, the design solves the problems of insufficient structure design space and poor strength, meets the requirements of simultaneous side turning and cutting edge turning of the top cover, and reduces the cost. BRIEF DESCRIPTION OF DRAWINGS

[0021] The following is a brief explanation of the contents of each of the accompanying drawings and the markings in the drawings:

[0022] Fig. 1 This is a top view of the lower mold of the present invention.

[0023] Fig. 2 This is a schematic diagram of the upper mold of the present invention viewed from below.

[0024] Fig. 3 This is a schematic diagram of the side-flipping mold structure of the present invention.

[0025] Fig. 4 This is a schematic diagram of the edge-cutting and flipping mold structure of the present invention.

[0026] In the picture:

[0027] 1. Punch, 2. Lower die core, 3. Rotating shaft, 4. Lower die cutting and flipping block, 5. Scrap material chute, 6. Upper die body, 7. Lifting wedge, 8. Side flipping block, 9. Upper pressure core, 10. Upper die edge cutting block, 11. Lower die spring, 12. Lower die body, 13. Upper die spring. Detailed Implementation

[0028] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and through the description of the examples.

[0029] like Figs. 1 to 4 As shown, the composite mold for achieving simultaneous edge trimming and side flipping includes an upper mold body 13 and a lower mold body 12. The lower mold body is provided with a punch 1 and a lower mold core 2. The lower part of the upper mold body is provided with an upper pressure core 9. The punch is set on the lower mold core to form a floating punch structure. The mold body is provided with a lower mold cutting and flipping cutter block 4 near the edge of the punch. The lower part of the upper mold body is provided with an upper mold trimming cutter block 10 corresponding to the lower mold cutting and flipping cutter block. The upper mold body is provided with a lifting wedge 7 corresponding to the side edge of the upper pressure core. The lower mold core is provided with a rotating inclined wedge corresponding to the lifting wedge. The inner side of the lifting wedge is provided with a side flipping cutter block 8.

[0030] An upper die spring 13 is provided between the upper pressure core and the upper die body; a lower die spring 11 is provided between the lower die core and the lower die body; in this structure, the nitrogen spring force of the lower die core is less than the pressure force of the nitrogen spring of the upper die; both the upper and lower parts are designed as movable structures, the lower die flips up using a floating punch structure, the upper and lower cutting and flipping blades are mounted on the lower die body, the side flipping part uses a rotating wedge, and the drive seat of the rotating wedge is directly designed on the lower die core, the rotating shaft 3 is mounted on the core, ensuring that the rotating wedge moves up and down with the core. This design solves the problems of insufficient structural design space and poor strength, and meets the requirements of the top cover flipping sidewise and the cutting edge flipping up simultaneously, reducing costs.

[0031] The inner side of the lower die cutting and turning knife block 4 is provided with a turning edge inclined surface corresponding to the edge of the male die, and the edge of the upper pressing core cooperates with the edge of the male die and the turning edge inclined surface to form an upper turning edge structure; the upper die cutting edge knife block is located outside the lower die cutting and turning knife block, and the top end of the turning edge inclined surface forms a cutting edge blade.

[0032] The rotary wedge is arranged on the lower die core through the driving seat, and the rotary shaft of the rotary wedge is arranged on the lower die core; the rotary wedge is provided with a notch corresponding to the lifting wedge, and the upper edge of the notch forms a side turning blade; the side turning knife block is arranged on the knife block mounting surface; the inner side of the lifting wedge is also provided with a knife block mounting surface and a knife block back drag, and the side turning knife block is arranged on the corresponding knife block mounting surface; the structure is compact.

[0033] The composite die of the application processes the top cover, the side turning of the top beam of the top cover, and the upper turning of the tail edge in the same process; the process structure side turning needs to adopt a rotary wedge, the tail edge upper turning adopts a pressing core and a lower core, and a cutting and turning knife block and other working components; the design innovation is that the rotary shaft of the rotary wedge is arranged on the lower core, so that the rotary wedge moves with the lower core, and the tail edge upper turning and side turning are realized at the same time.

[0034] A process using the composite die for realizing the tail edge upper turning and side turning at the same time, comprising the following steps:

[0035] S1, the upper die moves with the pressing core, the suspension type wedge carries the upper side shaping knife block, and the shaping knife block moves downward; after a period of time, the pressing core contacts the male die of the lower die, and before the lower die spring starts to compress, the pressing core presses the plate; at this time, the upper die lifting wedge presses the rotary wedge to rotate, but the rotary shaft has not rotated in place; the cutting edge knife block has not contacted the plate;

[0036] S2, after the material is pressed, the press continues to move downward, the lower core spring starts to compress, the cutting edge knife block starts to contact the lower die blade, and the edge is trimmed; when the cutting edge knife block completely enters the lower die blade, the upper turning edge knife block of the lower die starts to contact the plate; finally, when the lower core spring compression is completed, the upper turning is completed; the cutting waste is slid to the outside of the die through the waste slide;

[0037] S3, after the lower core spring compression is completed, the press continues to move downward at the same time; the upper die pressing core spring starts to compress, in the process, the upper die lifting wedge carries the side turning knife block and continues to move downward, before the side turning knife block contacts the plate, the lower die rotary wedge is pressed to rotate to the position by the lifting wedge pressing plate, and the side turning edge starts; finally, when the pressing core spring compression is completed, the side turning edge is completed.

[0038] The tail part adopts upper turning cutting edge, the structure is designed as a double-core structure, the side turning structure of the two sides of the top beam is designed as a rotary wedge on the lower core, so that the rotary wedge moves up and down with the lower core, the upper turning cutting edge mechanism works normally, the waste can be cut off smoothly, the process is shortened, and the cost is reduced.

[0039] The above merely describes preferred embodiments of the present application, and the technical features described above can be combined to form multiple embodiments of the present application.

[0040] The present application is described above in conjunction with the accompanying drawings, and it is obvious that the specific implementation of the present application is not limited by the above manner, as long as various non-essential improvements are made by adopting the concept and technical solution of the present application, or the concept and technical solution of the present application is directly applied to other occasions without improvement, which is within the protection scope of the present application.

Claims

1. A compound mold for realizing same-sequence edge trimming and side flipping, comprising an upper mold body and a lower mold body, wherein a male mold and a lower mold core are arranged on the lower mold body, and an upper pressing core is arranged at the lower part of the upper mold body, characterized in that: The punch is arranged on the lower die core to form a floating punch structure, the lower die body is provided with a lower die cutting and turning tool block at the punch edge, and the lower part of the upper die body is provided with an upper die cutting edge tool block corresponding to the lower die cutting and turning tool block; the upper die body is provided with a lifting wedge corresponding to the upper pressing core side edge, and the lower die core is provided with a rotating wedge corresponding to the lifting wedge, and the inner side of the lifting wedge is provided with a side turning tool block; The upper die spring is arranged between the upper pressing core and the upper die body, the lower die spring is arranged between the lower die core and the lower die body, the force of the lower die spring is smaller than the pressing force of the upper die spring, the rotating wedge is arranged on the lower die core through the driving seat, and the rotating shaft of the rotating wedge is arranged on the lower die core.

2. The compound mold for realizing the same-sequence edge trim and side flip as claimed in claim 1, wherein: The inner side of the lower die cutting and turning tool block is provided with a turning edge inclined surface corresponding to the punch edge, and the top end of the turning edge inclined surface forms a cutting edge blade.

3. The compound mold for realizing the same-sequence edge trim and side flip as claimed in claim 1, wherein: The inner side of the lifting wedge is provided with a tool block mounting surface and a tool block back drag, and the side turning tool block is arranged on the tool block mounting surface.

4. The compound mold for realizing the same-sequence edge trim and side flip as claimed in claim 2, wherein: The upper die cutting edge tool block is located outside the lower die cutting and turning tool block.

5. The compound mold for realizing the same-sequence edge trim and side flip as claimed in claim 1, wherein: The rotating wedge is provided with a tool block mounting surface and a tool block back drag corresponding to the lifting wedge, and the side turning tool block is arranged on the tool block mounting surface.

6. A process for utilizing the compound mold for simultaneous edge trimming and side flipping as claimed in any one of claims 1 to 5, wherein: The process comprises the following steps: S1, the upper die body moves with the upper pressing core, the lifting wedge moves downward with the side turning tool block; after a period of time, the upper pressing core starts to contact the punch of the lower die body, and before the lower die spring starts to compress, the upper pressing core presses the plate; at this time, the pressing plate of the lifting wedge rotates the rotating wedge, but the rotating shaft has not rotated in place; the upper die cutting edge tool block has not contacted the plate; S2, after the pressing, the upper die body continues to move downward, the lower die spring of the lower die core starts to compress, the upper die cutting edge tool block starts to contact the outer blade edge of the lower die cutting and turning tool block, and the edge is started to be trimmed; when the upper die cutting edge tool block completely enters the outer blade edge of the lower die cutting and turning tool block, the inner side of the lower die cutting and turning tool block starts to contact the plate; finally, when the lower die spring of the lower die core is compressed, the upper pressing core is completed; the cutting edge waste is slid to the outside of the mold through the waste sliding way; S3, after the lower die spring of the lower die core is compressed, the upper die body continues to move downward at the same time; the upper die spring starts to compress, in the process, the lifting wedge continues to move downward with the side turning tool block, before the side turning tool block contacts the plate, the rotating wedge of the lower die core is pressed to rotate in place by the pressing plate of the lifting wedge, and the side turning edge is started; finally, when the upper die spring of the upper pressing core is compressed, the side turning edge is completed.

Images