Car body sheet metal part stamping die of multi-stage stamping structure
By designing a multi-stage stamping die for body sheet metal parts, and utilizing components such as sliding blocks, fixed shafts, and lifting parts, efficient ejection and multi-stage stamping of sheet metal parts are achieved, solving the problems of precision and material handling convenience that traditional dies cannot meet.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU FUXIANG AUTOMOBILE TECH CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-05-26
AI Technical Summary
Traditional single-stage stamping dies are difficult to meet the precision requirements of complex shapes in automotive body sheet metal parts, and the stamped sheet metal parts are difficult to remove from the die, resulting in inconvenience in material handling.
Design a multi-stage stamping die for body sheet metal parts, using components such as sliding blocks, fixed shafts, limit grooves, and lifting parts. Driven by electric telescopic rods and hydraulic cylinders, it realizes the ejection of sheet metal parts and multi-stage stamping operations.
It improves stamping accuracy, simplifies the material handling process for sheet metal parts, and meets the production needs of complex-shaped sheet metal parts.
Smart Images
Figure CN224273047U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts manufacturing technology, and in particular to a multi-stage stamping structure for stamping body sheet metal parts. Background Technology
[0002] Sheet metal refers to the processing operations such as shearing, punching, and welding of thin metal sheets. Products produced through sheet metal technology are called sheet metal parts. In the automobile production process, the manufacturing of automobile body sheet metal parts requires the use of multi-stage stamping structure stamping dies to complete different stamping actions. Through multiple stamping operations, the desired part shape is finally obtained.
[0003] A search revealed a Chinese patent (authorization announcement number CN222220853U) disclosing a multi-stage stamping structure for stamping body sheet metal parts. The patent includes a base and a mold mechanism mounted on the base. The mold mechanism comprises an upper mold base, stamping components, four sets of guide components, a switching component, and two stamping dies. Each set of guide components is mounted on the base, the upper mold base is positioned between each set of guide components, each set of stamping components is mounted on the upper mold base, the switching component is mounted on the base, and each stamping die is mounted on the switching component. The stamping components include a stamping cylinder, a mounting plate, and a stamping head. This patented technology enables the stamping of body sheet metal parts through the cooperation of the stamping components on the upper mold base and the stamping dies. The switching component allows for rapid and automatic switching between the two stamping dies according to production needs, adapting to the production requirements of different vehicle models and parts, without the need for manual disassembly and installation.
[0004] However, the above-mentioned device still has some drawbacks in actual use. The most obvious one is that the body sheet metal parts are an indispensable part of automobile manufacturing. They are complex in shape and have high precision requirements. Traditional single-stage stamping dies can hardly meet the production needs. Moreover, after the above-mentioned car body sheet metal parts are stamped by multi-stage stamping structure dies, they will be deeply embedded in the stamping groove, making it difficult for workers to take out the stamped sheet metal parts, making the material handling operation inconvenient. Utility Model Content
[0005] In view of the above-mentioned problems existing in the prior art, the main purpose of this utility model is to provide a stamping die for body sheet metal parts with a multi-stage stamping structure.
[0006] The technical solution of this utility model is as follows: a multi-stage stamping structure stamping die for body sheet metal parts, including a lower template, a fixed box fixedly installed inside the lower template, a sliding block slidably connected inside the fixed box, a lifting groove opened inside the sliding block, a fixed shaft slidably connected inside the lifting groove, limit grooves opened on both sides of the fixed box, the two limit grooves being slidably connected to the two ends of the fixed shaft respectively, and a lifting component slidably installed inside the fixed box, the lifting component being fixedly connected to the fixed shaft.
[0007] By adopting the above technical solution, the sliding block slides and the fixed shaft moves along the trajectory of the lifting groove. Under the limiting action of the limiting groove, the fixed shaft can perform up and down lifting operations, thereby enabling the body sheet metal parts in the stamping groove to be pushed out with the help of the lifting parts and the lifting plate.
[0008] In a preferred embodiment, the lifting components are slidably connected to the sliding block and the lower template. The top of the lower template is provided with a stamping groove, and a lifting plate is slidably connected inside the stamping groove. The top of the lifting component extends into the inside of the stamping groove and is fixedly connected to the lifting plate.
[0009] By adopting the above technical solution and using the lifting plate, the body sheet metal parts can be supported during the stamping process.
[0010] In a preferred embodiment, the lower template is provided with a transmission assembly, which includes a fixing groove formed inside the lower template and located on one side of the fixing box. An electric telescopic rod is fixedly installed on the inner wall of the fixing groove, and the piston rod of the electric telescopic rod extends into the interior of the fixing box and is fixedly connected to the sliding block.
[0011] By adopting the above technical solution, the extension and retraction of the piston rod of the electric telescopic rod can drive the sliding block inside the fixed box to move, thereby realizing the transmission of power.
[0012] In a preferred embodiment, the top of the lower template is provided with a multi-stage stamping assembly. The multi-stage stamping assembly includes limiting rods fixedly connected to the four corners of the top of the lower template. A top plate is fixedly installed between the four limiting rods. A hydraulic cylinder is fixedly installed on the top of the top plate. The piston rod of the hydraulic cylinder is fixedly connected to the top of the upper template. An upper template is provided at the bottom of the top plate. A transition plate is provided between the upper template and the lower template.
[0013] By adopting the above technical solution, the use of four limit rods plays an important role in limiting the movement of the transition plate and the upper template, and the hydraulic cylinder can provide power for the movement of the upper template and the transition plate.
[0014] In a preferred embodiment, the multi-stage stamping assembly further includes an upper die core fixedly connected to the bottom end of the upper template, a transition die core fixedly installed at the bottom of the transition plate, the upper template and the transition plate being slidably connected to the outer side of the limiting rod, and a lower die core fixedly installed at the top of the lower template.
[0015] By adopting the above technical solution, the movement of the upper template can drive the transition plate to move downwards. The hole at the transition plate is inserted into the lower mold guide sleeve on the lower template, thereby completing the first-stage stamping operation. Then, the upper template continues to move downwards to complete the second-stage stamping, ultimately forming the required sheet metal part shape.
[0016] In a preferred embodiment, the bottom of the upper template is provided with a positioning component, the positioning component including two upper mold guide posts fixedly connected to the bottom of the upper template, and the top of the lower template is fixedly connected with a lower mold guide sleeve that cooperates with the upper mold guide posts.
[0017] By adopting the above technical solution, the upper mold guide post and the lower mold guide sleeve are used in combination to ensure that the upper mold core and the lower mold core are aligned.
[0018] In a preferred embodiment, the lower mold guide sleeve is engaged with the corresponding upper mold guide post, and a controller is fixedly installed on the outer side of the lower mold template.
[0019] By adopting the above technical solution and setting the controller, the electrical equipment on the lower template can be controlled.
[0020] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0021] 1. In this utility model, after the body sheet metal parts are stamped, the operator can control the transmission component at the lower template to start, thereby driving the sliding block in the fixed box to slide, and causing the fixed shaft to move along the trajectory of the lifting groove. Under the limiting action of the limiting groove, the fixed shaft can perform up and down lifting operations, thereby using the lifting component and lifting plate to push the body sheet metal parts out of the stamping groove, so that the operator can perform material removal operations on the body sheet metal parts, reducing the time for the operator to remove the body sheet metal parts.
[0022] 2. In this utility model, the hydraulic cylinder can be started by the controller to drive the upper template to move downward. Then, the transition plate moves downward and the hole at the transition plate will be inserted into the lower mold guide sleeve on the lower template, thereby completing the first stage of stamping. Then, the upper template continues to move downward to complete the second stage of stamping, and finally form the required sheet metal part shape. This solution adopts a multi-stage stamping structure with a simple shape, which can meet the production needs. Attached Figure Description
[0023] Figure 1 This utility model provides an overall perspective view of a multi-stage stamping structure stamping die for automotive sheet metal parts.
[0024] Figure 2 A bottom view of a multi-stage stamping die for a car body sheet metal part, which is provided by this utility model;
[0025] Figure 3 This utility model provides a sectional view of the lower template of a multi-stage stamping die for body sheet metal parts.
[0026] Figure 4 This utility model provides a schematic diagram of the internal structure of the fixing box of a multi-stage stamping die for body sheet metal parts.
[0027] Legend: 1. Lower template; 2. Lower mold guide sleeve; 3. Stamping groove; 4. Controller; 5. Lifting groove; 6. Upper template; 7. Top plate; 8. Hydraulic cylinder; 9. Transition plate; 10. Upper mold guide column; 11. Transition mold core; 12. Upper mold core; 13. Sliding block; 14. Electric telescopic rod; 15. Fixed box; 16. Limiting groove; 17. Fixed shaft; 18. Lifting plate; 19. Lifting component. Detailed Implementation
[0028] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0029] Reference Figure 1-4 A multi-stage stamping die for car body sheet metal parts includes a lower die plate 1. A fixed box 15 is fixedly installed inside the lower die plate 1. A sliding block 13 is slidably connected inside the fixed box 15. A lifting groove 5 is formed inside the sliding block 13. A fixed shaft 17 is slidably connected inside the lifting groove 5. Limiting grooves 16 are formed on both sides of the fixed box 15, and the two limiting grooves 16 are slidably connected to the two ends of the fixed shaft 17, respectively. A lifting component 19 is slidably installed inside the fixed box 15 and is fixedly connected to the fixed shaft 17. After the body sheet metal parts are stamped, the operator can control the transmission component at the lower template 1 to start, which in turn drives the sliding block 13 in the fixed box 15 to slide, and causes the fixed shaft 17 to move along the trajectory of the lifting groove 5. Under the limiting action of the limiting groove 16, the fixed shaft 17 can perform up and down lifting operations, and then the body sheet metal parts in the stamping groove 3 can be pushed out with the help of the lifting component 19 and the lifting plate 18, so that the operator can take out the body sheet metal parts, reducing the time for the operator to take out the body sheet metal parts.
[0030] Specifically, the lifting components 19 are slidably connected to the sliding block 13 and the lower template 1. The top of the lower template 1 is provided with a stamping groove 3, and the inside of the stamping groove 3 is slidably connected to the lifting plate 18. The top of the lifting components 19 extends into the inside of the stamping groove 3 and is fixedly connected to the lifting plate 18, which can support the body sheet metal parts during the stamping process. The lower template 1 is provided with a transmission assembly, which includes a fixing groove opened inside the lower template 1 and located on one side of the fixing box 15. By extending and retracting the piston rod of the electric telescopic rod 14, the sliding block 13 inside the fixing box 15 can be moved, thereby realizing the transmission of power. The electric telescopic rod 14 is fixedly installed on the inner wall of the fixing groove. The piston rod extends into the interior of the fixed box 15 and is fixedly connected to the sliding block 13. The top of the lower template 1 is provided with a multi-stage stamping assembly, which includes limiting rods fixedly connected to the four corners of the top of the lower template 1. The use of the four limiting rods plays an important role in limiting the movement of the transition plate 9 and the upper template 6, which can improve the stamping accuracy. A top plate 7 is fixedly installed between the four limiting rods. A hydraulic cylinder 8 is fixedly installed on the top of the top plate 7. The hydraulic cylinder 8 can provide power for the movement of the upper template 6 and the transition plate 9. The piston rod of the hydraulic cylinder 8 is fixedly connected to the top of the upper template 6. The bottom of the top plate 7 is provided with the upper template 6. A transition plate 9 is provided between the upper template 6 and the lower template 1.
[0031] Specifically, the multi-stage stamping assembly also includes an upper die core 12 fixedly connected to the bottom of the upper template 6, a transition die core 11 fixedly installed at the bottom of the transition plate 9, both the upper template 6 and the transition plate 9 being slidably connected to the outer side of the limiting rod, a lower die core fixedly installed at the top of the lower template 1, a positioning assembly provided at the bottom of the upper template 6, the positioning assembly including two upper die guide pillars 10 fixedly connected to the bottom of the upper template 6, a lower die guide sleeve 2 fixedly connected to the top of the lower template 1 for use with the upper die guide pillars 10, the lower die guide sleeve 2 engaging with the corresponding upper die guide pillar 10, and a controller 4 fixedly installed on the outer side of the lower template 1.
[0032] Working principle: First, the sheet metal part to be stamped is placed on the lower die core. Then, the operator can control the hydraulic cylinder 8 through the controller 4 to drive the upper die plate 6 downward. Next, the transition plate 9 moves downward, and the hole at the transition plate 9 is inserted into the lower die guide sleeve 2 on the lower die plate 1, thus completing the first stage of stamping. Then, the upper die plate 6 continues to move downward to complete the second stage of stamping, finally forming the required sheet metal part shape. Through the cooperation of the upper die guide post 10 and the lower die guide sleeve 2, the upper die core 12 and the lower die are kept in close contact. The core is aligned, and after the sheet metal part is stamped, the operator can control the electric telescopic rod 14 at the lower template 1 to start, which can drive the sliding block 13 in the fixed box 15 to slide, and make the fixed shaft 17 move along the trajectory of the lifting groove 5. Under the limiting action of the limiting groove 16, the fixed shaft 17 can perform up and down lifting operations, and then the lifting part 19 and the lifting plate 18 can be used to push out the body sheet metal part in the stamping groove 3, so that the operator can take out the body sheet metal part, reducing the time for the operator to take out the body sheet metal part.
[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0034] The above are merely preferred embodiments of this application and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A stamping die for a body panel of a multi-stage stamped structure, comprising a lower die plate (1), characterized in that: A fixed box (15) is fixedly installed inside the lower template (1). A sliding block (13) is slidably connected inside the fixed box (15). A lifting groove (5) is opened inside the sliding block (13). A fixed shaft (17) is slidably connected inside the lifting groove (5). Limiting grooves (16) are opened on both sides of the fixed box (15). The two limiting grooves (16) are slidably connected to the two ends of the fixed shaft (17). A lifting component (19) is slidably installed inside the fixed box (15). The lifting component (19) is fixedly connected to the fixed shaft (17).
2. The multi-stage stamping structure stamping die for car body sheet metal parts according to claim 1, characterized in that: The lifting components (19) are all slidably connected to the sliding block (13) and the lower template (1). The top of the lower template (1) is provided with a stamping groove (3). The inside of the stamping groove (3) is slidably connected to the lifting plate (18). The top of the lifting component (19) extends into the inside of the stamping groove (3) and is fixedly connected to the lifting plate (18).
3. The multi-stage stamping structure stamping die for car body sheet metal parts according to claim 1, characterized in that: The lower template (1) is provided with a transmission assembly. The transmission assembly includes a fixing groove opened inside the lower template (1) and located on one side of the fixing box (15). An electric telescopic rod (14) is fixedly installed on the inner wall of the fixing groove. The piston rod of the electric telescopic rod (14) extends into the interior of the fixing box (15) and is fixedly connected to the sliding block (13).
4. The multi-stage stamping structure stamping die for car body sheet metal parts according to claim 1, characterized in that: The top of the lower template (1) is provided with a multi-stage stamping assembly. The multi-stage stamping assembly includes limiting rods fixedly connected to the four corners of the top of the lower template (1). A top plate (7) is fixedly installed between the four limiting rods. A hydraulic cylinder (8) is fixedly installed on the top of the top plate (7). The piston rod of the hydraulic cylinder (8) is fixedly connected to the top of the upper template (6). The bottom of the top plate (7) is provided with the upper template (6). A transition plate (9) is provided between the upper template (6) and the lower template (1).
5. The multi-stage stamping structure stamping die for car body sheet metal parts according to claim 4, characterized in that: The multi-stage stamping assembly also includes an upper die core (12) fixedly connected to the bottom of the upper template (6), a transition die core (11) fixedly installed at the bottom of the transition plate (9), the upper template (6) and the transition plate (9) are both slidably connected to the outside of the limiting rod, and a lower die core is fixedly installed at the top of the lower template (1).
6. The multi-stage stamping structure stamping die for car body sheet metal parts according to claim 4, characterized in that: The bottom end of the upper template (6) is provided with a positioning component, which includes two upper mold guide pillars (10) fixedly connected to the bottom of the upper template (6), and the top of the lower template (1) is fixedly connected with a lower mold guide sleeve (2) that cooperates with the upper mold guide pillars (10).
7. The multi-stage stamping structure stamping die for car body sheet metal parts according to claim 6, characterized in that: The lower mold guide sleeve (2) is engaged with the corresponding upper mold guide post (10), and a controller (4) is fixedly installed on the outer side of the lower mold template (1).