Stamping die for automobile fender
By designing detachable upper and lower mold components and guide pin limiting block structure, the problems of low efficiency and poor accuracy when replacing the upper mold in existing molds are solved, thereby improving production efficiency and mold lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-16
- Publication Date
- 2026-04-10
AI Technical Summary
Existing automotive mudguard stamping dies make it difficult to quickly change the upper die when processing mudguards of different sizes, affecting production efficiency and die closure accuracy, resulting in product defect rate and die wear.
A stamping die for automotive mudguards was designed, which adopts a detachable lower die assembly and an upper die assembly. The upper and lower dies are precisely aligned through the cooperation of guide pins and limit blocks. The upper die assembly of different sizes can be quickly replaced by a combination of limit blocks and adjusting bolts, thereby improving replacement efficiency and accuracy.
It enables quick mold replacement, improves production efficiency and mold closing accuracy, reduces product defect rate and mold wear, and extends mold life.
Smart Images

Figure CN224101699U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a fender processing technical field, specifically a kind of automobile fender stamping die. BACKGROUND
[0002] Fender is the plate structure installed behind the wheel frame, fender is usually installed behind the vehicle wheel, set fender can effectively prevent the paint surface of the body from being hurt by flying stones and sand, fender is installed behind the tire of automobile, effectively protect the body from the impact of sand and stone, and can prevent the damage of bottom parts caused by mud, automobile fender is usually processed by stamping when producing.
[0003] In the Chinese patent with publication number CN221869892U, a kind of automobile fender stamping die is disclosed, it is set lifting plate by activity, by the activity of lifting plate, drive upper die activity, to form automobile fender by stamping to raw material steel sheet;By setting cooling liquid in upper die, by being surrounded with circulating water pipe in forming groove, automobile fender after stamping forming can be rapidly cooled, while automobile fender can be quickly ejected by the activity of ejector block, to realize demolding work.
[0004] Although the upper die is cooled by liquid cooling in the above scheme to facilitate demolding, the upper die is fixedly installed on the connecting column, and it is difficult to replace the upper die when processing fenders of different sizes, which affects production efficiency. Therefore, we provide a kind of automobile fender stamping die to solve the above problems. UTILITY MODEL CONTENTS
[0005] I) technical problems solved
[0006] The utility model aims at making up for the deficiency of prior art, and provides a kind of automobile fender stamping die.
[0007] II) technical scheme
[0008] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of automobile fender stamping die, comprising:
[0009] The bracket includes a bottom plate, a vertical rod and a top plate, and the two ends of the vertical rod are fixedly connected to the bottom plate and the top plate respectively.
[0010] The hydraulic cylinder is fixedly connected with a connecting box at the telescopic end.
[0011] The lower die assembly is detachably installed on the bottom plate.
[0012] The upper die assembly is arranged above the bottom plate, and the fender stamping forming is completed by the upper die assembly and the lower die assembly.
[0013] The connecting assembly is arranged on the connecting box and is used for fixing the upper die assembly on the connecting box.
[0014] Further, the connecting box is fixedly connected with a guide plate, and an end of the guide plate away from the connecting box is slidably connected to the vertical rod.
[0015] Further, the lower die assembly comprises a lower die base, the lower die base is fixedly connected with a connecting block, and the connecting block is installed on the bottom plate through bolts.
[0016] Further, the upper die assembly comprises an upper die base, the upper die base is fixedly connected with a guide pin, and the lower die base is provided with a guide hole matched with the guide pin.
[0017] Further, the connecting assembly comprises an installation groove provided on the connecting box, the installation groove is provided with a penetrating groove and a rotating groove, the inner bottom wall of the rotating groove is provided with a limiting groove, the upper die base is fixedly connected with a connecting piece, and the connecting piece is fixedly connected with a limiting block matched with the penetrating groove and the limiting groove.
[0018] Further, the connecting assembly further comprises a moving groove provided on the connecting box, the moving groove is in communication with the rotating groove, a adjusting bolt is rotatably connected in the moving groove, one end of the adjusting bolt penetrates through the connecting box and extends to the outside of the connecting box, and the other end of the adjusting bolt is rotatably connected with a pressing block, and the pressing block is slidably connected in the moving groove.
[0019] III) Beneficial effects:
[0020] Compared with the prior art, the automobile mudguard stamping die has the following beneficial effects:
[0021] I. The connecting piece on the upper die base is inserted into the installation groove on the connecting box, the limiting block is matched with the penetrating groove, the rotating groove and the limiting groove to complete preliminary limiting, the upper die base is rotated to make the limiting block enter the limiting groove for locking, different upper die assemblies can be quickly replaced when different sizes of mudguards are processed, the cumbersome disassembly and assembly process caused by the traditional fixed installation mode is avoided, and therefore the die replacement efficiency and the overall production efficiency are significantly improved.
[0022] II. The guide pin is arranged on the upper die base, the guide hole matched with the guide pin is arranged on the lower die base, the guide pin is inserted into the guide hole during the upper die and the lower die are closed, the alignment of the upper die and the lower die is effectively guided, deviation or misalignment is prevented, the accuracy of die closing is improved, the size accuracy and shape consistency of the mudguard after stamping forming are ensured, the product failure rate and die wear caused by die closing error are reduced, and the service life of the die is prolonged. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 is a sectional view of the utility model Figure 1 ;
[0024] Figure 2 is a sectional view of the utility model Figure 2 ;
[0025] Figure 3 is a sectional view of the utility model;
[0026] Figure 4 is a sectional view of the utility model after the upper die assembly is removed.
[0027] In the figure: 1, bottom plate; 2, vertical rod; 3, top plate; 4, lower die seat; 5, connecting block; 6, guide hole; 7, hydraulic cylinder; 8, connecting box; 9, guide plate; 10, upper die seat; 11, guide pin; 12, connecting piece; 13, limit block; 14, through slot; 15, rotating slot; 16, limit slot; 17, moving slot; 18, pressing block; 19, adjusting bolt; 20, mounting slot. DETAILED DESCRIPTION
[0028] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0029] As Figures 1-4 shown, the utility model provides a technical scheme: a stamping die of automobile mudguard, including support, hydraulic cylinder 7, lower die assembly, upper die assembly and connecting assembly.
[0030] The support includes bottom plate 1, vertical rod 2 and top plate 3, and both ends of vertical rod 2 are fixedly connected on bottom plate 1 and top plate 3 respectively, bottom plate 1 is at the bottom, and top plate 3 is at the top.
[0031] The telescopic end of hydraulic cylinder 7 is fixedly connected with connecting box 8, connecting box 8 is fixedly connected with guide plate 9, one end of guide plate 9 away from connecting box 8 is slidably connected on vertical rod 2, connecting box 8 is driven to move up and down by the telescopic end of hydraulic cylinder 7, and guide plate 9 slides on vertical rod 2, and the movement of connecting box 8 can be guided.
[0032] The lower die assembly is detachably mounted on the bottom plate 1, the lower die assembly comprises a lower die seat 4, the lower die seat 4 is fixedly connected with a connecting block 5, the connecting block 5 is mounted on the bottom plate 1 through bolts, the top of the lower die seat 4 is provided with a cavity capable of accommodating a steel plate, and the lower die seat 4 is fixed by mounting bolts on the connecting block 5, so that the lower die seat 4 can be conveniently replaced.
[0033] In the embodiment, the upper die assembly is arranged above the bottom plate 1, and the fender is stamped and formed by closing the upper die assembly and the lower die assembly. The upper die assembly comprises an upper die seat 10, the upper die seat 10 is fixedly connected with a guide pin 11, and the lower die seat 4 is provided with a guide hole 6 matched with the guide pin 11.
[0034] The upper die seat 10 is designed with a protrusion matched with the cavity, the protrusion is inserted into the cavity to complete the stamping and forming of the steel plate, and when the upper die assembly and the lower die assembly are closed, the guide pin 11 is inserted into the guide hole 6, so that the accuracy of closing the upper die assembly and the lower die assembly can be ensured.
[0035] In the embodiment, the connecting assembly is arranged on the connecting box 8 and is used for fixing the upper die assembly on the connecting box 8. The connecting assembly comprises a mounting slot 20 arranged on the connecting box 8, the mounting slot 20 is provided with a penetrating slot 14 and a rotating slot 15, the inner bottom wall of the rotating slot 15 is provided with a limiting slot 16, the upper die seat 10 is fixedly connected with a connecting piece 12, and the connecting piece 12 is fixedly connected with a limiting block 13 matched with the penetrating slot 14 and the limiting slot 16.
[0036] When the upper die assembly is installed, the connecting piece 12 on the upper die seat 10 is inserted into the inside of the mounting slot 20, the limiting block 13 is inserted into the inside of the rotating slot 15 through the penetrating slot 14, the upper die seat 10 is rotated, the limiting block 13 is rotated to a matched state with the limiting slot 16, and then the limiting block 13 is inserted into the limiting slot 16 to limit the upper die seat 10.
[0037] The connecting assembly further comprises a moving slot 17 arranged on the connecting box 8, the moving slot 17 is communicated with the rotating slot 15, the moving slot 17 is rotatably connected with an adjusting bolt 19, one end of the adjusting bolt 19 penetrates through the connecting box 8 and extends to the outside of the connecting box 8, the other end of the adjusting bolt 19 is rotatably connected with a pressing block 18, and the pressing block 18 is slidably connected in the moving slot 17.
[0038] After the upper die seat 10 is preliminarily limited, the adjusting bolt 19 is rotated, the adjusting bolt 19 drives the pressing block 18 to slide in the moving slot 17, the pressing block 18 abuts against the connecting piece 12 to limit the upper die seat 10 in the longitudinal direction, and the stability of the upper die seat 10 on the connecting box 8 is enhanced.
[0039] It should be noted that in this paper, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model; the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance, in addition, unless otherwise explicitly specified and limited, the terms "fixed", "mounted", "connected", "connected" should be understood broadly, for example, "mounted" can be fixedly connected, or can be detachably connected, or integrally connected; "connected" can be mechanical connection, or electrical connection; "connected" can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.
[0040] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. An automobile fender stamping die characterized by, The utility model relates to a mudguard stamping forming device, including: Support, including bottom plate (1), stand (2) and top plate (3), and the both ends of stand (2) are fixedly connected on bottom plate (1) and top plate (3) respectively, Hydraulic cylinder (7), the telescopic end of hydraulic cylinder (7) is fixedly connected with connecting box (8), Lower die assembly, detachably installed on bottom plate (1), Upper die assembly, set up above bottom plate (1), complete the fender stamping forming through upper die assembly and lower die assembly, Connecting assembly, set up on connecting box (8), for completing the upper die assembly fixed on connecting box (8).
2. The stamping die for a fender of an automobile according to claim 1, characterized in that: The connecting box (8) is fixedly connected with the guide plate (9), and the end of the guide plate (9) away from the connecting box (8) is slidingly connected to the stand (2).
3. The stamping die for a fender of an automobile according to claim 1, wherein: The lower die assembly includes a lower die seat (4), and the lower die seat (4) is fixedly connected with a connecting block (5), and the connecting block (5) is installed on the bottom plate (1) by bolts.
4. The stamping die for a fender of an automobile according to claim 3, characterized in that: The upper die assembly includes an upper die seat (10), and the upper die seat (10) is fixedly connected with a guide pin (11), and the lower die seat (4) is provided with a guide hole (6) matched with the guide pin (11).
5. The stamping die for a fender of an automobile according to claim 4, characterized in that: The connecting assembly includes a mounting groove (20) provided on the connecting box (8), and the mounting groove (20) is provided with a penetrating groove (14) and a rotating groove (15), and the inner bottom wall of the rotating groove (15) is provided with a limiting groove (16), and the upper die seat (10) is fixedly connected with a connecting piece (12), and the connecting piece (12) is fixedly connected with a limiting block (13) matched with the penetrating groove (14) and the limiting groove (16).
6. The stamping die for a fender of an automobile according to claim 5, wherein: The connecting assembly further includes a moving groove (17) provided on the connecting box (8), and the moving groove (17) is in communication with the rotating groove (15), and the moving groove (17) is rotatably connected with an adjusting bolt (19), one end of the adjusting bolt (19) penetrates the connecting box (8) and extends to the outside of the connecting box (8), and the other end of the adjusting bolt (19) is rotatably connected with a pressing block (18), and the pressing block (18) is slidingly connected in the moving groove (17).
Citation Information
Patent Citations
Stamping die for automobile fender
CN221869892U