A chassis shell press forming device

By designing segmented stamping components, the problem of localized wrinkling caused by the large contact area between the mold and the sheet metal in traditional stamping devices is solved, thus achieving high-quality shell stamping.

CN224463555UActive Publication Date: 2026-07-07

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Filing Date
2025-07-11
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

In traditional shell stamping equipment, the contact area between the mold and the sheet metal is large and the pressure distribution is complex, which leads to local wrinkling and affects product quality.

Method used

The system employs a segmented stamping assembly, including longitudinal and transverse stamping plates. The stamping process is driven by a cylinder-driven insert rod and a rotating rod, which avoids excessively large stamping areas in a single block and achieves precise local stamping.

Benefits of technology

This solved the problem of localized wrinkling caused by the large contact area between the mold and the sheet metal, thus improving the stability and consistency of product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a bottom shell punch forming device belongs to punch equipment technical field, including base, setting fixed frame in base side, the top of base is provided with punch assembly, the inboard of base is provided with unloading assembly, the punch assembly includes the connecting frame fixedly installed in the bottom of fixed frame, a plurality of rotary connections telescopic link in the side of connecting frame, a plurality of rotary connections punch cross -beam and punch vertical board in the bottom of telescopic link. The bottom shell punch forming device, through starting punch cylinder to push the falling of punch seat, the falling of punch seat drives the synchronous driving of punch vertical board and punch cross -beam with the drop of embedded position bar and rotary rod, the both sides of punch cross -beam are extruded and push the rotary slot nest of embedded position bar is in the outside of cross -rotating plate, subsequently push cross -rotating plate rotates, drive rotary rod rotates, make the limit sliding plate insert the inside of rotary slot, and punch vertical board can move towards each other under the push of the inner wall of base.
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Description

Technical Field

[0001] This utility model relates to the field of stamping equipment technology, specifically to a chassis shell stamping forming device. Background Technology

[0002] Stamping is a processing technology that uses the pressure of stamping dies and equipment to plastically deform metal sheets, such as steel and aluminum sheets, into a specified shape. This process can efficiently produce chassis shells with complex shapes and high precision requirements, while ensuring product consistency and quality stability.

[0003] Shell stamping forming equipment is widely used in automobile manufacturing, machinery processing, electronic equipment production and other industries, and can perform various stamping processes such as punching, blanking, bending and stretching.

[0004] Traditional casing stamping forming devices typically use an integrated stamping die plate with a mold for stamping. Although this can prevent the casing from bulging and material from overflowing at the edge of the die during the stamping process, the large contact area between the stamping die and the sheet metal and the complex pressure distribution mean that material flow during the stamping process may cause local wrinkling or thinning, affecting the appearance quality and overall performance. Therefore, a chassis casing stamping forming device is proposed. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a chassis shell stamping forming device, which has the advantages of good flexibility and strong practicality. It solves the problem that traditional shell mold stamping equipment has a large contact area with the sheet metal and complex pressure distribution, which easily leads to local wrinkling and affects product quality.

[0006] To achieve the aforementioned goals of high flexibility and stability, this utility model provides the following technical solution: a chassis shell stamping forming device, comprising a base, a fixing frame disposed on the side of the base, a stamping assembly disposed on the top of the base, and an unloading assembly disposed on the inner side of the base;

[0007] The stamping assembly includes a connecting frame fixedly installed at the bottom of the fixed frame, several telescopic rods rotatably connected to the side of the connecting frame, several stamping horizontal plates and stamping vertical plates rotatably connected to the bottom of the telescopic rods, a stamping cylinder fixedly installed at the bottom of the connecting frame, a stamping seat fixedly installed at the bottom of the stamping cylinder, a moving rod movably connected to the side of the stamping vertical plate, a positioning rod disposed inside the stamping horizontal plate, a support spring disposed outside the positioning rod, and a rotating rod fixedly installed to the side of the support spring.

[0008] Furthermore, the unloading assembly includes a movable groove formed in the inner bottom wall of the base, several unloading springs disposed in the inner bottom wall of the movable groove, and a stamped base plate fixedly installed on the top of the unloading springs.

[0009] Furthermore, both the stamping horizontal plate and the stamping vertical plate are mutually adaptable trapezoidal structures and are slidably connected on opposite sides, with a limit slot hole provided on the opposite side of the stamping horizontal plate.

[0010] Furthermore, the opposite side of the stamping longitudinal plate is provided with several threaded holes, one end of the moving rod is embedded in the threaded hole and threadedly connected to the stamping longitudinal plate, and the opposite side of the two moving rods has a limiting slide plate.

[0011] Furthermore, several interconnected sliding holes are provided on both sides of the stamping seat, and the opposite end of the moving rod is embedded in the sliding hole and slidably connected to the sliding hole.

[0012] Furthermore, one end of the insert rod is fixedly installed on the inner wall of the limiting slot, and the opposite side of the insert rod is provided with evenly distributed rotating slots. The side of the supporting spring is fixedly installed on the inner wall of the limiting slot.

[0013] Furthermore, the upper and lower surfaces of the rotating rod are provided with several rotating grooves for use with the limiting slide plates, and the limiting slide plates on both sides are respectively embedded in the rotating grooves on the upper and lower surfaces of the rotating rod.

[0014] Furthermore, the rotating rod extends laterally through the sliding hole and is slidably connected to the stamping seat. Both ends of the rotating rod are provided with slots for use with the insert rod, and the inside of the slots is provided with cross-shaped rotating plates for use with the rotating slot.

[0015] Compared with the prior art, the present invention provides a chassis shell stamping forming device, which has the following beneficial effects:

[0016] 1. The chassis shell stamping forming device places the material to be stamped on the top of the base, activates the stamping cylinder to push the stamping seat down, and the falling of the stamping seat drives the insert rod and the rotating rod to simultaneously drive the stamping longitudinal plate and the stamping transverse plate down. The two sides of the stamping transverse plate are squeezed and push the rotating slot of the insert rod to nest on the outside of the cross rotating plate. The continued movement of the rotating slot drives the cross rotating plate to rotate, which drives the rotating rod to rotate, so that the limiting slide plate is inserted into the interior of the rotating slot. At this time, the stamping longitudinal plate can move towards each other under the push of the inner side wall of the base and enter the interior of the base for stamping.

[0017] 2. This chassis shell stamping forming device uses a stamping cylinder in conjunction with the inner wall of the base to push the stamping longitudinal plate and stamping transverse plate into the mold slot of the base. The stamping longitudinal plate, stamping transverse plate, and stamping seat work together with the base to stamp the inner and outer sides of the shell respectively. The stamping longitudinal plate, stamping transverse plate, and stamping seat stamp the material in their respective areas, thereby avoiding the problem of a single stamping plate stamping the material, which results in an excessively large stamping area and complex stress distribution. This solves the problem of traditional shell mold stamping equipment having a large contact area with the sheet metal and complex pressure distribution, which easily leads to local wrinkling and affects product quality. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present utility model;

[0019] Figure 2 This is a cross-sectional view of the present invention;

[0020] Figure 3 This is a perspective view of the stamped horizontal plate and stamped vertical plate of this utility model;

[0021] Figure 4 This is a perspective view of the rotating rod of this utility model;

[0022] Figure 5 This is a perspective view of the insert rod of this utility model;

[0023] Figure 6 This is a cross-sectional view of the base of this utility model.

[0024] In the diagram: 1. Base; 2. Fixing frame; 3. Stamping assembly; 31. Connecting frame; 32. Telescopic rod; 33. Stamping horizontal plate; 331. Limiting slot; 34. Stamping vertical plate; 35. Stamping cylinder; 36. Stamping seat; 361. Sliding perforation; 37. Moving rod; 371. Limiting slide plate; 38. Inserting rod; 381. Rotating slot; 39. Support spring; 310. Rotating rod; 311. Rotating slide; 312. Cross rotating plate; 4. Unloading assembly; 41. Movable slot; 42. Unloading spring; 43. Stamping base plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1 to 6In this embodiment, a chassis shell stamping forming device includes a base 1, a fixing frame 2 disposed on the side of the base 1, a stamping assembly 3 disposed on the top of the base 1, and an unloading assembly 4 disposed on the inner side of the base 1.

[0027] The stamping assembly 3 includes a connecting frame 31 fixedly installed at the bottom of the fixed frame 2, several telescopic rods 32 rotatably connected to the side of the connecting frame 31, several stamping horizontal plates 33 and stamping vertical plates 34 rotatably connected to the bottom of the telescopic rods 32, a stamping cylinder 35 fixedly installed at the bottom of the connecting frame 31, a stamping seat 36 fixedly installed at the bottom of the stamping cylinder 35, a moving rod 37 movably connected to the side of the stamping vertical plate 34, a positioning rod 38 disposed inside the stamping horizontal plate 33, a support spring 39 disposed outside the positioning rod 38, and a rotating rod 310 fixedly installed on the side of the support spring 39.

[0028] In this embodiment, the stamping horizontal plate 33 and the stamping vertical plate 34 are both trapezoidal structures that are adapted to each other and are slidably connected on opposite sides. A limiting slot 331 is provided on the opposite side of the stamping horizontal plate 33.

[0029] Both the bottom of the stamping horizontal plate 33 and the stamping vertical plate 34 are chamfered, so that after the stamping horizontal plate 33 and the stamping vertical plate 34 enter the interior of the base 1, they will be pushed by the inner side wall of the base 1 and thus move laterally. The chamfer angles of the stamping vertical plate 34 and the stamping horizontal plate 33 are different, and the moving speed of the stamping horizontal plate 33 under the push of the chamfer is greater than the moving speed of the stamping vertical plate 34.

[0030] In this embodiment, a plurality of threaded holes are provided on the opposite side of the stamping longitudinal plate 34, one end of the moving rod 37 is embedded in the threaded hole and threadedly connected to the stamping longitudinal plate 34, and the opposite side of the two moving rods 37 has a limiting slide plate 371.

[0031] In this embodiment, several interconnected sliding through holes 361 are provided on both sides of the stamping base 36, and one end of the moving rod 37 is embedded in the sliding through hole 361 and slidably connected with the sliding through hole 361.

[0032] It should be noted that the sliding perforation 361 has a protrusion inside that restricts the movement of the moving rod 37, allowing it to move only laterally.

[0033] In this embodiment, one end of the insert rod 38 is fixedly installed on the inner wall of the limiting slot 331. The opposite side of the insert rod 38 is provided with evenly distributed rotating slots 381. The side of the support spring 39 is fixedly installed on the inner wall of the limiting slot 331. The support spring 39 records the initial position of the rotating rod 310. Both ends act on the rotating rod 310 and the stamping cross plate 33 respectively. After the rotating rod 310 rotates, the support spring 39 will pull the rotating rod 310 to rotate and reset. When the rotating rod 310 and the stamping cross plate 33 are too close, they will push each other away.

[0034] In this embodiment, the upper and lower surfaces of the rotating rod 310 are provided with a number of rotating grooves 311 that are used in conjunction with the limiting slide plate 371. The limiting slide plates 371 on both sides are respectively embedded in the rotating grooves 311 on the upper and lower sides of the rotating rod 310. When the rotating rod 310 rotates at a certain angle, the rotating grooves 311 will be aligned with the limiting slide plate 371. At this time, the stamping longitudinal plate 34 will move closer under the squeezing action of the inner sidewall of the base 1.

[0035] In this embodiment, the rotating rod 310 passes through the sliding through hole 361 laterally and is slidably connected to the stamping seat 36. Both ends of the rotating rod 310 are provided with slots for use with the insert rod 38. The inside of the slot is provided with a cross rotating plate 312 for use with the rotating slot 381. After the stamping plate 33 enters the slot of the base 1, it will push the rotating slot 381 of the insert rod 38 to abut against the cross rotating plate 312. The continuous movement of the insert rod 38 will cause the cross rotating plate 312 to rotate, thereby driving the rotating rod 310 to rotate.

[0036] The sliding perforation 361 of the stamping base 36 is provided with a limiting ring that restricts the lateral movement of the rotating rod 310, so that the rotating rod 310 can only rotate.

[0037] In this embodiment, the unloading component 4 includes a movable groove 41 formed in the inner bottom wall of the base 1, a plurality of unloading springs 42 disposed in the inner bottom wall of the movable groove 41, and a stamped base plate 43 fixedly installed on the top of the unloading springs 42.

[0038] The bottom of the stamping base plate 43 is supported by the top side wall of the movable groove 41, and stamping is carried out in conjunction with the stamping base plate 43. After the stamping process is completed, the restoring action of the unloading spring 42 pushes the stamping base plate 43 to lift up, pushing the stamped shell up so that the edge part exceeds the top edge of the base 1, which facilitates unloading.

[0039] The working principle of the above embodiments is as follows:

[0040] By placing the material to be stamped on top of the base 1, the stamping cylinder 35 is activated to push the stamping seat 36 to fall. The falling of the stamping seat 36 causes the inserting rod 38 and the rotating rod 310 to simultaneously drive the stamping longitudinal plate 34 and the stamping transverse plate 33 to descend. The two sides of the stamping transverse plate 33 are squeezed and push the rotating slot 381 of the inserting rod 38 to be nested on the outside of the cross rotating plate 312. The continued movement of the rotating slot 381 causes the cross rotating plate 312 to rotate, which in turn causes the rotating rod 310 to rotate, so that the limiting slide plate 371 is inserted into the interior of the rotating slot 381. At this time, the stamping longitudinal plate 34 can move towards each other under the push of the inner side wall of the base 1 and enter the interior of the base 1 for stamping.

[0041] In addition, the stamping cylinder 35, in conjunction with the inner wall of the base 1, pushes the stamping longitudinal plate 34 and the stamping transverse plate 33 into the mold slot of the base 1. The stamping longitudinal plate 34, the stamping transverse plate 33, and the stamping seat 36, in conjunction with the base 1, stamp the inner and outer sides of the outer shell respectively. The stamping longitudinal plate 34, the stamping transverse plate 33, and the stamping seat 36 stamp the material in their respective areas, thereby avoiding the problem that the single stamping area of ​​the material is too large and the force is more complex when the integrated stamping plate stamps the material. This solves the problem that the traditional outer shell mold stamping equipment has a large contact area with the sheet metal and complex pressure distribution, which easily leads to local wrinkling and affects product quality.

[0042] All electrical components mentioned in the text are electrically connected to the main controller and power supply. The main controller can be a conventional and known device such as a computer, and the existing publicly available power connection technology will not be elaborated in the text.

[0043] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0044] 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.

Claims

1. A chassis shell stamping forming device, comprising a base (1) and a fixing frame (2) disposed on the side of the base (1), characterized in that: A stamping assembly (3) is provided on the top of the base (1), and an unloading assembly (4) is provided on the inner side of the base (1); The stamping assembly (3) includes a connecting frame (31) fixedly installed at the bottom of the fixed frame (2), several telescopic rods (32) rotatably connected to the side of the connecting frame (31), several stamping horizontal plates (33) and stamping vertical plates (34) rotatably connected to the bottom of the telescopic rods (32), a stamping cylinder (35) fixedly installed at the bottom of the connecting frame (31), a stamping seat (36) fixedly installed at the bottom of the stamping cylinder (35), a moving rod (37) movably connected to the side of the stamping vertical plate (34), a insert rod (38) set inside the stamping horizontal plate (33), a support spring (39) set outside the insert rod (38), and a rotating rod (310) fixedly installed on the side of the support spring (39).

2. The chassis shell stamping forming apparatus according to claim 1, characterized in that: The unloading assembly (4) includes a movable groove (41) opened in the bottom wall of the base (1), a number of unloading springs (42) arranged in the bottom wall of the movable groove (41), and a stamped base plate (43) fixedly installed on the top of the unloading springs (42).

3. The chassis shell stamping forming apparatus according to claim 1, characterized in that: The stamping horizontal plate (33) and the stamping vertical plate (34) are both trapezoidal structures that are compatible with each other and are slidably connected on opposite sides. A limit slot (331) is provided on the opposite side of the stamping horizontal plate (33).

4. The chassis shell stamping forming apparatus according to claim 1, characterized in that: The stamping longitudinal plate (34) has several threaded holes on one side opposite to each other. One end of the moving rod (37) is embedded in the threaded hole and threadedly connected to the stamping longitudinal plate (34). The two moving rods (37) have a limit slide plate (371) on the side opposite to each other.

5. The chassis shell stamping forming apparatus according to claim 1, characterized in that: The stamping seat (36) has several interconnected sliding through holes (361) on both sides. The opposite end of the moving rod (37) is embedded in the sliding through hole (361) and is slidably connected to the sliding through hole (361).

6. The chassis shell stamping forming apparatus according to claim 3, characterized in that: One end of the insert rod (38) is fixedly installed on the inner wall of the limiting slot (331), and the opposite side of the insert rod (38) is provided with a uniformly distributed rotating slot (381). The side of the support spring (39) is fixedly installed on the inner wall of the limiting slot (331).

7. The chassis shell stamping forming apparatus according to claim 4, characterized in that: The upper and lower surfaces of the rotating rod (310) are provided with a number of rotating grooves (311) for use with the limiting slide plate (371), and the limiting slide plates (371) on both sides are respectively embedded in the interior of the rotating grooves (311) on the upper and lower sides of the rotating rod (310).

8. The chassis shell stamping forming apparatus according to claim 5, characterized in that: The rotating rod (310) passes through the sliding through hole (361) laterally and is slidably connected to the stamping seat (36). Both ends of the rotating rod (310) are provided with slots for use with the insert rod (38). The inside of the slots is provided with a cross rotating plate (312) for use with the rotating slot (381).