Stamping die for post - processing of vehicle outer beam

Abstract

The present invention discloses a stamping die for post-processing of vehicle outer beams, which includes an upper die base and a lower die base. A floating pressure-lifting block is provided in the middle of the upper die base, and an installation seat is provided in the middle of the lower die base. Two lower convex block forming blocks for forming the convex parts close to the side of the workpiece are provided on the installation seat. On the lower die base, a floating material supporting block is respectively provided at both ends of the installation seat. A positioning pin matching with the positioning hole on the workpiece is provided on the floating material supporting block. On the lower die base, an end cutting seat is provided on the side of the floating material supporting block away from the installation seat. A lower end cutting knife block for performing U-shaped cutting on the top surface of the end surplus material to obtain the edge of the finished end top surface is provided on the end cutting seat. An end cutting sliding seat is provided on the upper die base, and an upper end cutting knife block matching with the lower end cutting knife block is provided on the end cutting sliding seat. On the lower die base, an end driving inclined wedge block matching with the end cutting sliding seat is provided on the side of the end cutting knife block away from the installation seat.

Description

Technical Field

[0001] The present invention relates to a stamping die for post - processing of vehicle outer beams. Background Art

[0002] The structure of the vehicle outer beam is as Figure 1 shown. Since it is a left - right symmetric part, the left and right parts are stamped together during processing, and finally cut to obtain the finished product. After the overall forming of the vehicle outer beam is completed, the structure is as Figure 2 shown. In subsequent processes, it is necessary to perform punching on the convex part on the bottom extension of the workpiece, punch the side punching holes to be processed on the side of the workpiece, punch the punching holes to be processed on the protruding part on the top of the workpiece, and cut the surplus material at the inclined end of the workpiece. Due to the complex curved surface structure of the outer beam, especially at both ends, the surplus material at the ends is in a cover shape after the previous stamping forming process, and the stamping cutting is difficult, which easily causes cracking at the ends of the workpiece. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a stamping die for post - processing of vehicle outer beams with high forming accuracy to avoid workpiece deformation and cracking.

[0004] To solve the above - mentioned technical problem, the technical solution adopted by the present invention is: a stamping die for post - processing of vehicle outer beams, including an upper die base and a lower die base. A floating pressure - boosting block is provided in the middle of the upper die base, and a number of limit pressure - plate blocks for restricting the lower limit of the movement of the floating pressure - boosting block are provided on the upper die base;

[0005] An installation seat is provided in the middle of the lower die base. Two lower convex - block forming blocks for forming the protruding parts near the side of the workpiece are provided on the installation seat. Blanking through - holes corresponding to two holes to be processed on the workpiece are provided on the lower convex - block forming blocks. Two groups of blanking punches cooperating with the blanking through - holes are provided on the upper die base; Two pairs of punching die buttons for punching through - holes on the protruding part in the middle of the workpiece are provided on the installation seat, and two groups of middle punches cooperating with the punching die buttons are provided on the upper die base; Two upper convex - block forming blocks cooperating with the lower convex - block forming blocks are provided on the floating pressure - boosting block, and avoidance through - holes for avoiding each blanking punch and middle punch are provided on the upper convex - block forming blocks;

[0006] One floating lifting and supporting block is provided at each end of the installation seat on the lower die base. A positioning pin cooperating with the positioning hole on the workpiece is provided on the floating lifting and supporting block. An end - part lower cutting seat is provided on the lower die base on the side of the floating lifting and supporting block far from the installation seat. A lower - end cutting knife block for performing U - shaped cutting on the top surface of the end - part surplus material to obtain the edge of the top surface of the finished end - part is provided on the end - part lower cutting seat;

[0007] An end - part cutting slide seat is provided on the upper die base. An upper - end cutting knife block cooperating with the lower - end cutting knife block is provided on the end - part cutting slide seat. An end - part driving wedge block cooperating with the end - part cutting slide seat is provided on the lower die base on the side of the end - part cutting knife block far from the installation seat;

[0008] There are two integral wedge assemblies provided on the upper die base. A side punch is provided on the wedge sliding seat of the integral wedge assembly corresponding to the position where the workpiece is to be side punched. On the lower die base, two side punch driving blocks for driving the integral wedge assemblies are provided on the side of the mounting seat corresponding to the position where the workpiece is to be side punched.

[0009] As a preferred solution, a pair of limit guiding bolts are provided on the lower die base at each lifting and blank holding block, passing through the lifting and blank holding block and restricting the upward position of the lifting and blank holding block.

[0010] As a preferred solution, a positioning block with a V-shaped cross-section is provided on the driving surface of the end driving wedge block, and a mating positioning groove is provided on the end cutting slide.

[0011] As a preferred solution, wear plates are respectively provided on both sides of the positioning block with a V-shaped cross-section on the driving surface of the end driving wedge block.

[0012] As a preferred solution, a pair of guiding columns are respectively provided on both sides of the lower die base, and a pair of guiding grooves mating with the guiding columns are respectively provided on both sides of the upper die base.

[0013] The beneficial effects of the present invention are as follows: This mold pre-compresses the workpiece through the floating pressure pad and a pair of lifting and blank holding blocks to ensure accurate positioning of the workpiece during stamping; Since a lower end cutting knife block for U-shaped cutting of the top surface of the end surplus material to obtain the edge of the finished end top surface is provided on the end lower cutting seat, and an upper end cutting knife block mating with the lower end cutting knife block is provided on the end cutting slide, by reasonably setting the end cutting range, the deformation of the end during the cutting process is ensured to be within a controllable range, thereby ensuring the machining accuracy of the workpiece; In addition, the positions of the processing components of this mold are reasonably arranged to make the overall structure compact, thus saving the space of the punching machine and reducing the equipment cost.

[0014] Since a pair of limit guiding bolts are provided on the lower die base at each lifting and blank holding block, passing through the lifting and blank holding block and restricting the upward position of the lifting and blank holding block, it not only ensures the stable movement of the lifting and blank holding block but also saves the installation space.

[0015] Since a positioning block with a V-shaped cross-section is provided on the driving surface of the end driving wedge block, and a mating positioning groove is provided on the end cutting slide, the cooperation between the end cutting slide and the end driving wedge block is made more accurate.

[0016] Wear plates are respectively provided on both sides of the positioning block with a V-shaped cross-section on the driving surface of the end driving wedge block, extending the service life of the end driving wedge block.

[0017] Since a pair of guiding columns are respectively provided on both sides of the lower die base, and a pair of guiding grooves mating with the guiding columns are respectively provided on both sides of the upper die base, it ensures the accuracy of mold closing and makes the mold closing stable. Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the external beam structure for vehicles of the present invention.

[0019] Figure 2 It is a schematic diagram of the structure of the external beam for vehicles before processing of the present invention.

[0020] Figure 3 It is a schematic diagram of the structure of the external beam for vehicles after processing of the present invention.

[0021] Figure 4 It is a schematic diagram of the lower die structure of the present invention.

[0022] Figure 5 It is a schematic diagram of the upper die structure of the present invention.

[0023] Figures 1 to 5 In the figure: 1 is the upper die base, 2 is the lower die base, 3 is the floating pressure pad, 4 is the limit pressure plate; 5 is the mounting seat, 6 is the lower convex block forming block, 7 is the blanking punch, 8 is the punching die button, 9 is the middle punch, 10 is the upper convex block forming block, 11 is the guide post, 12 is the floating material supporting block, 13 is the limit guiding bolt, 14 is the end lower cutting seat, 15 is the lower end cutting tool block; 16 is the end cutting slide seat, 17 is the upper end cutting tool block, 18 is the end driving wedge block; 19 is the integrated wedge assembly, 20 is the side punch, 21 is the side punching driving block, 22 is the positioning block, 23 is the wear-resistant plate. Detailed Description of the Invention

[0024] The following will describe in detail the specific implementation of the present invention with reference to the drawings.

[0025] As Figures 1-5 shown, the stamping die for the post-processing of the external beam for vehicles includes an upper die base 1 and a lower die base 2. A floating pressure pad 3 is provided in the middle of the upper die base 1, and a number of limit pressure plates 4 for restricting the lower limit of the movement of the floating pressure pad 3 are provided on the upper die base 1; a mounting seat 5 is provided in the middle of the lower die base 2, and two lower convex block forming blocks 6 for forming the convex parts near the side of the workpiece are provided on the mounting seat 5. Blanking through holes corresponding to two to-be-processed hole positions on the workpiece are provided on the lower convex block forming block 6, and two groups of blanking punches 7 cooperating with the blanking through holes are provided on the upper die base 1; two pairs of punching die buttons 8 for punching through holes on the convex part in the middle of the workpiece are provided on the mounting seat 5, and two groups of middle punches 9 cooperating with the punching die buttons 8 are provided on the upper die base 1; two upper convex block forming blocks 10 cooperating with the lower convex block forming block 6 are provided on the floating pressure pad 3, and avoidance through holes for avoiding each blanking punch 7 and middle punch 9 are provided on the upper convex block forming block 10; a pair of guide posts 11 are respectively provided on both sides of the lower die base 2, and a pair of guide grooves cooperating with the guide posts are respectively provided on both sides of the upper die base 1.

[0026] On the lower die base 2, a lifting stock support block 12 is provided at each end of the mounting seat 5. At each lifting stock support block 12 on the lower die base 2, a pair of limit guiding bolts 13 are provided which pass through the lifting stock support block 12 and limit the upward position of the lifting stock support block 12. A positioning pin which matches the positioning hole on the workpiece is provided on the lifting stock support block 12. On the lower die base 2, on the side of the lifting stock support block 12 away from the mounting seat 5, an end cutting seat 14 is provided. On the end cutting seat 14, a lower end cutting knife block 15 is provided for U-shaped cutting of the top surface of the end surplus material to obtain the edge of the finished end top surface;

[0027] On the upper die base 1, an end cutting slide seat 16 is provided. On the end cutting slide seat 16, an upper end cutting knife block 17 which matches the lower end cutting knife block 15 is provided. On the lower die base 2, on the side of the end cutting knife block away from the mounting seat 5, an end driving wedge block 18 which matches the end cutting slide seat 16 is provided;

[0028] On the upper die base 1, two integrated wedge assemblies 19 are provided. On the wedge sliding seat of the integrated wedge assembly 19, a side punch 20 is provided corresponding to the position where the workpiece is to be side punched. On the lower die base 2, on the side of the mounting seat 5 corresponding to the position where the workpiece is to be side punched, two side punching driving blocks 21 for driving the integrated wedge assemblies 19 are provided.

[0029] On the driving surface of the end driving wedge block 18, a positioning block 22 with a V-shaped cross-section is provided. A matching positioning groove is provided on the end cutting slide seat 16. Wear-resistant plates 23 are provided on both sides of the positioning block 22 with a V-shaped cross-section on the driving surface of the end driving wedge block 18.

[0030] The above embodiments only illustratively explain the principle and efficacy of the present invention and some applied embodiments, rather than limiting the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A stamping die for post - processing of vehicle outer beams, comprising an upper die base and a lower die base, and a floating pressure - lifting block is arranged in the middle of the upper die base. It is characterized in that: A plurality of limit pressing plates for restricting the lower limit of the movement of the floating pressure-lifting material block are provided on the upper die base; an installation base is provided in the middle of the lower die base, and two lower convex block forming blocks for forming the convex parts near the side edges of the workpiece are provided on the installation base. Blanking through holes are provided on the lower convex block forming block corresponding to two holes to be processed on the workpiece. Two groups of blanking punches matched with the blanking through holes are provided on the upper die base; two pairs of punching die buttons for punching through holes on the convex part in the middle of the workpiece are provided on the installation base, and two groups of middle punches matched with the punching die buttons are provided on the upper die base; two upper convex block forming blocks matched with the lower convex block forming blocks are provided on the floating pressure-lifting material block, and avoidance through holes for avoiding each blanking punch and middle punch are provided on the upper convex block forming block; A floating supporting material block is respectively provided at both ends of the installation base on the lower die base. A positioning pin matched with the positioning hole on the workpiece is provided on the floating supporting material block. An end lower cutting seat is provided on the lower die base on the side of the floating supporting material block away from the installation base. A lower end cutting tool block for performing a U-shaped cutting on the top surface of the end surplus material to obtain the edge of the top surface of the finished end is provided on the end lower cutting seat; An end cutting slide seat is provided on the upper die base, and an upper end cutting tool block matched with the lower end cutting tool block is provided on the end cutting slide seat. An end driving wedge block matched with the end cutting slide seat is provided on the lower die base on the side of the end cutting tool block away from the installation base; Two integrated wedge assemblies are provided on the upper die base. A side punch is provided on the wedge sliding seat of the integrated wedge assembly corresponding to the position where the workpiece is to be side-punched. Two side punching driving blocks for driving the integrated wedge assemblies are provided on the side surface of the installation base on the lower die base corresponding to the position where the workpiece is to be side-punched; 2. The stamping die for post - processing of vehicle outer beams according to claim 1, wherein: A pair of limit guiding bolts passing through the floating supporting material block and restricting the upward movement position of the floating supporting material block are provided on the lower die base at each floating supporting material block; 3. A stamping die for post - processing of an outer beam of a vehicle, as described in claim 2, wherein: A positioning block with a V-shaped cross section is provided on the driving surface of the end driving wedge block, and a matching positioning groove is provided on the end cutting slide seat; 4. The stamping die for post - processing of vehicle outer beam according to claim 3, characterized in that: Wear-resistant plates are respectively provided on both sides of the positioning block with a V-shaped cross section on the driving surface of the end driving wedge block; 5. The stamping die for post - processing of vehicle outer beam according to claim 4, characterized in that: A pair of guiding columns are respectively provided on both sides of the lower die base, and a pair of guiding grooves matched with the guiding columns are respectively provided on both sides of the upper die base;

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