Novel automobile light-weight covering part forming die

By combining hydraulic and electric drive in the new lightweight automotive body panel molding die, the problem of difficult demolding of traditional molds has been solved, enabling smooth demolding and efficient production of body panels.

CN224143361UActive Publication Date: 2026-04-21JIANGSU JIULONG INTELLIGENT MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU JIULONG INTELLIGENT MFG CO LTD
Filing Date
2025-05-20
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

In the demolding process of traditional cold stamping forming dies, the high contact stress between the lightweight material and the die surface causes the cover to fit tightly with the die. Existing demolding angle design and ejection mechanism are unable to overcome the adsorption and friction forces, resulting in demolding jamming, part deformation or surface scratches, which affects production efficiency and product quality.

Method used

A new type of lightweight automotive body panel molding die is adopted. The upper die is moved upward by a hydraulic cylinder. Combined with a demolding component that uses a motor to drive the lead screw to rotate and a spring to return, the body panel can be successfully demolded through the cooperation of the inclined partition block and the demolding plate.

Benefits of technology

This enables convenient demolding of the cover parts, avoids demolding jamming and part deformation, and improves production efficiency and product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a novel automobile light-weight covering part forming die, which relates to the technical field of automobile manufacturing and comprises a base, a placing groove is arranged on the upper surface of the base, a lower die is arranged in the placing groove, a demoulding component is arranged in the base, and separating components are arranged on two sides of the lower die. A hydraulic cylinder is used for driving an upper mold to move upwards, a short connecting block and a lower pressing plate move upwards along with the upper mold, a lifting plate and an inclined vertical plate are reset under the action of a second spring, meanwhile, a partition block is separated from a partition groove under the action of reset force of a first spring, and a motor is used for driving a lead screw to rotate and driving a long connecting plate to ascend; the abutting plate is matched with the demolding plate to extend out of the separation grooves in the two sides of the lower mold, a formed finished product is upwards demolded and discharged, and the purpose of conveniently taking out a covering part finished product after hydraulic pressure is finished is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of automobile manufacturing technology, specifically a novel molding die for lightweight automotive body panels. Background Technology

[0002] With the increasing demand for lightweight and energy-saving materials in the automotive industry, lightweight and high-strength materials such as aluminum-magnesium alloys are being used more and more widely in automotive body panels. In the manufacturing of automotive body panels, pressing molds are required for convenient manufacturing. However, the body panel materials have a narrow range of plastic deformation. Traditional cold stamping molds are limited by the forming characteristics of the materials and face problems such as insufficient forming accuracy and severe mold wear. Especially in the demolding process, the high contact stress between the lightweight material and the mold surface can easily cause the body panel to fit tightly with the mold. Existing demolding angle designs and ejection mechanisms are difficult to effectively overcome the adsorption and friction forces, often resulting in demolding jamming, part deformation or surface scratches, which seriously affect production efficiency and product quality.

[0003] To address the aforementioned issues, a novel molding die for lightweight automotive body panels is proposed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the existing technology. This utility model proposes a new type of automotive lightweight body panel molding die. By using this device, the problem of the body panel adhering during demolding and being inconvenient to demold is solved.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a novel automotive lightweight body panel molding die, comprising a base, a placement groove on the upper surface of the base, a lower die inside the placement groove, a demolding component for demolding inside the base, and partition components for cooperating in molding on both sides of the lower die, the partition components being disposed inside the base.

[0006] The demolding component includes a motor fixedly connected inside the base, a lead screw fixedly connected to the output end of the motor, a limit cylinder fixedly connected to the inner wall of the base, a connecting plate threadedly connected to the outside of the lead screw, the connecting plate slidably connected inside the limit cylinder, a backing plate fixedly connected to the upper surface of the connecting plate, a demolding template fixedly connected to the upper surface of the backing plate, partition grooves opened on both sides of the lower mold, the demolding template and the partition grooves being set accordingly, and a part removal door hinged to one side of the base.

[0007] Furthermore, the separating component includes a support frame fixedly connected inside the base. A first spring is fixedly connected to the inner wall of the support frame. An inclined separating block is fixedly connected to one end of the first spring. The inclined separating block is correspondingly arranged with the separating groove. An inclined groove is opened on the upper surface of the inclined separating block. A drive component for driving the inclined separating block to move horizontally is arranged inside the inclined groove.

[0008] Furthermore, side grooves are provided on both sides of the inclined partition block, and a limiting plate is fixedly connected to the inner wall of the base, with the limiting plate slidably connected inside the side groove.

[0009] Furthermore, the base has a lifting groove inside, and the drive assembly includes a lifting plate set inside the lifting groove. Side plates are fixedly connected to both sides of the lifting plate, and the side plates are slidably connected inside the lifting groove. An inclined vertical plate is fixedly connected to the bottom surface of the lifting plate, and the inclined vertical plate is adapted to the inner wall of the inclined groove. A second spring is fixedly connected between the side plate and the inner wall of the lifting groove.

[0010] Furthermore, a buffer pad is fixedly connected to the upper surface of the template.

[0011] Furthermore, a mounting bracket is fixedly connected to the upper surface of the base, a hydraulic cylinder is fixedly connected to the upper surface of the mounting bracket, the bottom end of the hydraulic cylinder passes through the mounting bracket and is fixedly connected to an upper mold, connecting short blocks are fixedly connected to both sides of the upper mold, a lower pressure plate is fixedly connected to one side of the connecting short block, and a top groove is opened on the upper surface of the base, with the top groove corresponding to the lower pressure plate and the lifting plate.

[0012] Compared with the prior art, the beneficial effects of this utility model include: after the cover part is hydraulically formed, the upper mold is moved upward by the hydraulic cylinder, the connecting short block and the lower pressure plate are moved upward accordingly, the lifting plate and the inclined vertical plate are reset under the action of the second spring, and the partition block is disengaged from the partition groove under the action of the first spring reset force. The motor drives the lead screw to rotate, which drives the connecting long plate to rise. The abutment plate cooperates with the demolding plate to extend from the partition groove on both sides of the lower mold, and the formed finished product is demolded upward and discharged, so as to facilitate the removal of the finished cover part after the hydraulic process is completed. Attached Figure Description

[0013] Figure 1 The schematic diagram shows an overall structural schematic diagram according to one embodiment of the present invention;

[0014] Figure 2 The schematic diagram shows a schematic representation of an upper mold structure according to one embodiment of the present invention;

[0015] Figure 3 The schematic diagram shows the internal structure of the base according to one embodiment of the present invention;

[0016] Figure 4 The schematic diagram shows a structural diagram of a separating component according to one embodiment of the present invention;

[0017] Figure 5 The schematic diagram shows a drive component structure according to one embodiment of the present invention;

[0018] Figure 6The schematic diagram shows a structural diagram of a demolding component according to one embodiment of the present invention;

[0019] Figure 7 The diagram schematically shows a lower mold structure according to one embodiment of the present invention.

[0020] In the diagram: 1. Base; 11. Top groove; 12. Picking door; 2. Hydraulic cylinder; 21. Upper mold; 22. Connecting short block; 23. Lower pressure plate; 3. Demolding component; 31. Motor; 32. Lead screw; 33. Limiting cylinder; 34. Connecting long plate; 35. Support plate; 36. Demolding template; 37. Buffer pad; 4. Separating component; 41. Support frame; 42. First spring; 43. Inclined separator block; 431. Inclined groove; 44. Side groove; 45. Limiting plate; 5. Drive assembly; 51. Lifting plate; 52. Side plate; 53. Second spring; 54. Inclined vertical plate; 6. Lower mold; 61. Separating groove. Detailed Implementation

[0021] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0022] According to one embodiment of the present invention, in conjunction with Figure 1 , Figure 3 as well as Figure 6 As shown, a novel automotive lightweight body panel molding die includes a base 1, a placement groove on the upper surface of the base 1, a lower mold 6 inside the placement groove, a demolding component 3 for demolding inside the base 1, and partition components 4 for cooperating in molding on both sides of the lower mold 6, with the partition components 4 located inside the base 1.

[0023] The present invention will be further described below with reference to the embodiments.

[0024] Combination Figures 1-7The demolding component 3 includes a motor 31 fixedly connected inside the base 1. A lead screw 32 is fixedly connected to the output end of the motor 31. A limiting cylinder 33 is fixedly connected to the inner wall of the base 1. A connecting plate 34 is threadedly connected to the outer side of the lead screw 32. The connecting plate 34 is slidably connected inside the limiting cylinder 33. A stop plate 35 is fixedly connected to the upper surface of the connecting plate 34. A demolding template 36 is fixedly connected to the upper surface of the stop plate 35. Separating grooves 61 are provided on both sides of the lower mold 6. The demolding template 36 is set correspondingly to the separating grooves 61. A part removal door 12 is hinged to one side of the base 1. During demolding, the motor 31 is turned on, and the motor 31 drives the lead screw 32 to rotate. Under the limiting action of the limiting cylinder 33, the connecting plate 34 is driven to rise and fall. The stop plate 35 cooperates with the demolding template 36 to extend out from the separating grooves 61 on both sides of the lower mold 6, and the molded finished product is demolded upward and discharged. Finally, the cover part is taken out from the part removal door 12.

[0025] The separating component 4 includes a support frame 41 fixedly connected inside the base 1. A first spring 42 is fixedly connected to the inner wall of the support frame 41. One end of the first spring 42 is fixedly connected to an inclined separating block 43. The inclined separating block 43 is correspondingly arranged with the separating groove 61. An inclined groove 431 is opened on the upper surface of the inclined separating block 43. A drive component 5 for driving the inclined separating block 43 to move horizontally is arranged inside the inclined groove 431. When hydraulic forming is required, the drive component 5 is used to drive the inclined separating block 43 to move horizontally. The inclined separating block 43 moves towards the separating groove 61, thereby filling the separating groove 61 completely and forming a complete mold.

[0026] The inclined partition block 43 has side grooves 44 on both sides. A limiting plate 45 is fixedly connected to the inner wall of the base 1. The limiting plate 45 is slidably connected inside the side grooves 44. The side grooves 44 cooperate with the limiting plate 45 to ensure the stable horizontal movement of the inclined partition block 43.

[0027] The base 1 has a lifting groove inside. The drive assembly 5 includes a lifting plate 51 set inside the lifting groove. Side plates 52 are fixedly connected to both sides of the lifting plate 51. The side plates 52 are slidably connected inside the lifting groove. An inclined vertical plate 54 is fixedly connected to the bottom surface of the lifting plate 51. The inclined vertical plate 54 is adapted to the inner wall of the inclined groove 431. A second spring 53 is fixedly connected between the side plate 52 and the inner wall of the lifting groove. When it is necessary to drive the inclined partition block 43 to move horizontally, the lifting plate 51 and the inclined vertical plate 54 are pressed down by hydraulic pressure. The inclined vertical plate 54 squeezes the inner wall of the inclined groove 431, thereby realizing the horizontal movement of the inclined partition block 43. Subsequently, the side plate 52 and the second spring 53 are used to keep the lifting plate 51 stable in raising, lowering and resetting.

[0028] A buffer pad 37 is fixedly connected to the upper surface of the demolding template 36. The buffer pad 37 is used to buffer the upward movement of the finished product during demolding.

[0029] A mounting bracket is fixedly connected to the upper surface of the base 1, and a hydraulic cylinder 2 is fixedly connected to the upper surface of the mounting bracket. The bottom end of the hydraulic cylinder 2 passes through the mounting bracket and is fixedly connected to the upper mold 21. Connecting short blocks 22 are fixedly connected to both sides of the upper mold 21, and a lower pressure plate 23 is fixedly connected to one side of the connecting short block 22. A top groove 11 is opened on the upper surface of the base 1. The top groove 11 is correspondingly set with the lower pressure plate 23 and the lifting plate 51. During hydraulic forming, the hydraulic cylinder 2 drives the upper mold 21 to move down, and at the same time, the connecting short block 22 and the lower pressure plate 23 move down. The lower pressure plate 23 is inserted into the top groove 11, thereby pressing the lifting plate 51 with the lower pressure plate 23, providing power for the lifting plate 51 to press down.

[0030] Specifically, the cover is placed inside the placement groove. The hydraulic cylinder 2 drives the upper mold 21 to move downward, and the connecting short block 22 and the lower pressure plate 23 move downward at the same time. The lower pressure plate 23 is inserted into the top groove 11 and presses the lifting plate 51. The inclined vertical plate 54 presses the inner wall of the inclined groove 431, causing the inclined partition block 43 to move towards the partition groove 61, thereby completing the partition groove 61. After the cover is hydraulically formed, the hydraulic cylinder 2 drives the upper mold 21 to move upward. The lifting plate 51 and the inclined vertical plate 54 are reset under the action of the second spring 53. At the same time, the partition block 43 is disengaged from the partition groove 61 under the reset force of the first spring 42. Then, the motor 31 drives the lead screw 32 to rotate, which drives the connecting long plate 34 to rise. The abutment plate 35 and the demolding plate 36 extend from the partition groove 61 on both sides of the lower mold 6, and the formed finished product is demolded upward and discharged, so as to facilitate the removal of the finished cover.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel forming die for a lightweight automotive covering, characterized by: The device includes a base, the upper surface of which has a placement groove, a lower mold is provided inside the placement groove, a demolding component for demolding is provided inside the base, and partition components for cooperating to form are provided on both sides of the lower mold, the partition components being provided inside the base. The demolding component includes a motor fixedly connected inside the base, a lead screw fixedly connected to the output end of the motor, a limiting cylinder fixedly connected to the inner wall of the base, a connecting plate threadedly connected to the outer side of the lead screw, the connecting plate slidably connected inside the limiting cylinder, a stop plate fixedly connected to the upper surface of the connecting plate, a demolding template fixedly connected to the upper surface of the stop plate, partition grooves opened on both sides of the lower mold, the demolding template being correspondingly arranged with the partition grooves, and a part removal door hinged to one side of the base.

2. The novel forming die for a lightweight automotive covering member according to claim 1, characterized by: The separating component includes a support frame fixedly connected inside the base. A first spring is fixedly connected to the inner wall of the support frame. An inclined separating block is fixedly connected to one end of the first spring. The inclined separating block is correspondingly arranged with the separating groove. An inclined groove is formed on the upper surface of the inclined separating block. A driving component for driving the inclined separating block to move horizontally is provided inside the inclined groove.

3. The novel forming die for a lightweight automotive covering member according to claim 2, characterized by: The inclined partition block has side grooves on both sides, and a limiting plate is fixedly connected to the inner wall of the base. The limiting plate is slidably connected inside the side groove.

4. The novel forming die for a lightweight automotive covering member according to claim 2, characterized by: The base has a lifting groove inside, and the driving assembly includes a lifting plate disposed inside the lifting groove. Side plates are fixedly connected to both sides of the lifting plate, and the side plates are slidably connected inside the lifting groove. An inclined vertical plate is fixedly connected to the bottom surface of the lifting plate, and the inclined vertical plate is adapted to the inner wall of the inclined groove. A second spring is fixedly connected between the side plate and the inner wall of the lifting groove.

5. The novel forming die for a lightweight automotive covering member according to claim 1, characterized by: A buffer pad is fixedly connected to the upper surface of the template.

6. The novel forming die for a lightweight automotive covering member according to claim 4, characterized by: A mounting bracket is fixedly connected to the upper surface of the base, and a hydraulic cylinder is fixedly connected to the upper surface of the mounting bracket. The bottom end of the hydraulic cylinder passes through the mounting bracket and is fixedly connected to an upper mold. Connecting short blocks are fixedly connected to both sides of the upper mold, and a lower pressure plate is fixedly connected to one side of the connecting short block. A top groove is opened on the upper surface of the base, and the top groove is correspondingly set with the lower pressure plate and the lifting plate.