Automobile part stamping die

Abstract

The utility model discloses a kind of automobile parts stamping die, it is related to automobile parts processing technical field, including base and the top fixed connection of its top plate, the utility model, in stamping forming process, workpiece is sent into the working area between upper and lower die by feeding device, positioning process is released by second spring elastic potential energy, drive second limit block and second movable rod sliding, further drive extrusion plate vertical down pressure, exert stable limit support to workpiece top, prevent deviation or wobble, improve stamping positioning accuracy, subsequently forming module in upper die is down under the action of driving mechanism, cooperate with the forming bottom block in lower die, complete stamping forming, ensure forming dimensional accuracy and stress uniformity by reasonable die cavity design, after workpiece forming, enter cutting stage, cutting block in forming module is synchronous down pressure, and realize stable accurate motion under the guidance of limit sleeve, complete cutting or separation operation to workpiece forming part.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts processing technology, and in particular to an automotive parts stamping die. Background Technology

[0002] Stamping of automotive parts is a crucial process in automobile manufacturing. It involves applying pressure to sheet metal using a die to cause plastic deformation or separation, thereby obtaining parts of the required shape and size.

[0003] For example, CN209255645U discloses a stamping die for automotive parts, including a machine base, a drive cylinder, and a positioning table; a drive shaft is provided at the bottom of the drive cylinder, and a punch mounting block is fixedly connected to the bottom of the drive shaft, with at least two punches mounted at the bottom of the punch mounting block; the positioning table is fixedly installed on the machine base, located below the punch mounting block, and has at least two through-holes extending to its bottom at the top of the positioning table, and at least two first material grooves extending to the opposite side wall of one side wall of the positioning table, each of the first material grooves connecting to a punching through-hole; a second material groove extending to the opposite side wall of the positioning table is provided on the other side wall of the positioning table, and the second material groove passes through the intersection of the first material groove and the punching through-hole.

[0004] However, in the existing technology, the workpiece is prone to displacement due to vibration and conveying errors during the stamping process, which leads to deviations in forming dimensions and a high scrap rate. Furthermore, forming and cutting need to be completed on different equipment, requiring manual mechanical transfer, which not only increases time costs but also increases positioning errors. Utility Model Content

[0005] The purpose of this invention is to solve the problem in the prior art that the workpiece is prone to displacement due to vibration and conveying errors during the stamping process, which leads to deviations in forming dimensions and a high scrap rate. Therefore, this invention proposes a stamping die for automotive parts.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a stamping die for automotive parts, comprising a base and a top plate fixedly connected to its top, a lower die fixedly connected to the top of the base, a limiting mechanism installed on the side wall of the lower die, an upper die installed at the bottom of the top plate, a forming module fixedly connected to the bottom of the upper die, and limiting sleeves fixedly connected to both sides of the bottom of the upper die, and a cutting block fixedly connected to one side of the bottom of the upper die, with a limiting sleeve sleeved on the outside of the cutting block, the bottom of the limiting sleeve fixedly connected to the lower die, and two forming components symmetrically installed on the top of the base; The limiting mechanism includes a fixed plate, with a second movable rod slidably connected to both ends of the fixed plate. A second limiting block is fixedly connected to the bottom end of the second movable rod, and a pressing plate is fixedly connected to the top end of the second movable rod. A second spring is provided between the fixed plate and the second limiting block, and the second spring is sleeved on the outer surface of the second movable rod.

[0007] Preferably, the molding component includes a fixed block, a first movable rod is slidably connected to the inner side of the fixed block, and a molded part is fixedly connected to one end of the first movable rod.

[0008] Preferably, the outer side of the molded part is slidably connected to a track, and the bottom end of the track is fixedly connected to the top of the base.

[0009] Preferably, a first limiting block is fixedly connected to one end of the first movable rod, and a first spring is provided between the first limiting block and the fixed block.

[0010] Preferably, the first spring is sleeved on the outer surface of the first movable rod.

[0011] Preferably, a forming bottom block is provided between the two fixed blocks, and the bottom of the forming bottom block is fixedly connected to the base.

[0012] Preferably, a hydraulic cylinder is installed at the center of the top of the top plate, and the output end of the hydraulic cylinder is fixedly connected to the upper mold.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, during the stamping process, the workpiece is fed into the working area between the upper and lower dies by the feeding device. During the positioning process, the elastic potential energy is released by the second spring, which drives the second limit block and the second movable rod to slide, thereby driving the extrusion plate to press down vertically, applying stable limit support to the top of the workpiece to prevent deviation or shaking and improve the stamping positioning accuracy. Subsequently, the forming module in the upper die moves down under the action of the driving mechanism and cooperates with the forming bottom block in the lower die to complete the stamping. The reasonable mold cavity design ensures the forming size accuracy and force uniformity. After the workpiece is formed, it enters the cutting stage. The cutting block in the forming module presses down synchronously and achieves stable and precise movement under the guidance of the limit sleeve to complete the cutting or separation operation of the forming part of the workpiece, meeting the subsequent assembly or output requirements. The whole process is compact and coordinated, ensuring the efficiency, continuity and stability of the stamping and cutting process. 2. In this utility model, during the workpiece forming process, when the upper mold descends, the protrusions at both ends apply a driving force to the forming part, causing it to move along the track and approach the forming bottom block. Under the guidance of the track, stable and precise movement is achieved. The workpiece receives extrusion pressure between the forming part and the forming bottom block, completing secondary shaping and pressing, improving structural integrity and dimensional accuracy, and optimizing geometric shape and surface quality. At the same time, the forming part pushes the connected first movable rod forward synchronously, causing it to compress the first spring behind it to form energy storage. When the upper mold is raised and the driving force is released, the spring releases energy to drive the limit block and movable rod to move in the opposite direction, realizing the reset of the forming part. Through this structural linkage, automated reciprocating operation can be achieved, ensuring that the equipment has continuous and efficient cycle capability, and improving the system automation level and work cycle stability. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a stamping die for automotive parts proposed in this utility model; Figure 2 This is a partial three-dimensional structural diagram of a stamping die for automotive parts proposed in this utility model; Figure 3 This is a three-dimensional structural diagram of a limiting mechanism in a stamping die for automotive parts proposed in this utility model; Figure 4 This is a three-dimensional structural diagram of a forming component in a stamping die for automotive parts proposed in this utility model.

[0015] Legend: 1. Top plate; 2. Base; 3. Molding component; 31. Fixing block; 32. Track; 33. Molded part; 34. First movable rod; 35. First spring; 36. First limiting block; 4. Lower mold; 5. Limiting mechanism; 51. Fixing plate; 52. Extrusion plate; 53. Second movable rod; 54. Second limiting block; 55. Second spring; 6. Hydraulic cylinder; 7. Upper mold; 71. Molding module; 72. Cutting block; 73. Limiting sleeve; 74. Molding bottom block. Detailed Implementation

[0016] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0018] Example 1: As Figures 1-4 As shown, this utility model provides a stamping die for automotive parts, including a base 2 and a top plate 1 fixedly connected to its top. A lower die 4 is fixedly connected to the top of the base 2. A limiting mechanism 5 is installed on the side wall of the lower die 4. An upper die 7 is installed at the bottom of the top plate 1. A forming module 71 is fixedly connected to the bottom of the upper die 7. Limiting sleeves 73 are fixedly connected to both sides of the bottom of the upper die 7. A cutting block 72 is fixedly connected to one side of the bottom of the upper die 7. The limiting sleeve 73 is sleeved on the outside of the cutting block 72. The bottom of the limiting sleeve 73 is fixedly connected to the lower die 4. Two forming components 3 are symmetrically installed on the top of the base 2. The limiting mechanism 5 includes a fixed plate 51, with a second movable rod 53 slidably connected to both ends of the fixed plate 51. A second limiting block 54 is fixedly connected to the bottom end of the second movable rod 53, and a pressing plate 52 is fixedly connected to the top end of the second movable rod 53. A second spring 55 is provided between the fixed plate 51 and the second limiting block 54, and the second spring 55 is sleeved on the outer surface of the second movable rod 53.

[0019] The specific settings and functions of this embodiment are described below. During the stamping process, the workpiece is fed into the working area between the upper and lower dies 4 by the feeding device, specifically between the lower die 4 and the upper die 7. As the workpiece enters the positioning area, the second spring 55 releases its elastic potential energy after being compressed, pushing the second limiting block 54 connected to it to move downward. During this process, the second limiting block 54 is connected to the second movable rod 53, which in turn causes the second movable rod 53 to slide relative to the fixed plate 51. Since the second movable rod 53 forms a structural connection with the extrusion plate 52, the above sliding process will cause the extrusion plate 52 to press down in the vertical direction, thereby applying extrusion force to the top of the workpiece to form an effective limiting support, ensuring that the workpiece remains stable during the stamping process and does not shift or shake, thus improving the stamping positioning accuracy.

[0020] Subsequently, the forming module 71 in the upper mold 7 begins to descend under the action of the drive mechanism, cooperating with the forming base block 74 in the lower mold 4 to complete the stamping and forming operation of the workpiece. The mold cavity design ensures accurate forming dimensions and uniform force distribution, making it suitable for forming sheet metal of various shapes and thicknesses. When the stamping action is completed and the workpiece continues to move forward, in order to improve the automation level and processing efficiency of subsequent processes, the formed workpiece also needs to be cut.

[0021] At this point, as the forming module 71 continues to descend, the integrated cutting block 72 also moves downwards synchronously. During its descent, the cutting block 72 is guided and controlled by the limiting sleeve 73, ensuring a stable and precise movement path and preventing offset or wobbling that could cause cutting errors. Ultimately, the cutting block 72 completes the cutting or separation operation of the formed part, achieving precise workpiece slitting and meeting the process requirements for subsequent assembly or finished product output. The entire process is highly efficient and coordinated, ensuring the stability and continuity of the stamping and cutting processes.

[0022] Example 2: Figures 2-4As shown, the molding component 3 includes a fixing block 31, with a first movable rod 34 slidably connected to the inner side of the fixing block 31. One end of the first movable rod 34 is fixedly connected to a molding part 33. A track 32 is slidably connected to the outer side of the molding part 33, and the bottom end of the track 32 is fixedly connected to the top of the base 2. A first limiting block 36 is fixedly connected to one end of the first movable rod 34, and a first spring 35 is provided between the first limiting block 36 and the fixing block 31. The first spring 35 is sleeved on the outer surface of the first movable rod 34. A molding bottom block 74 is provided between the two fixing blocks 31, and the bottom of the molding bottom block 74 is fixedly connected to the base 2. A hydraulic cylinder 6 is installed at the center of the top of the top plate 1, and the output end of the hydraulic cylinder 6 is fixedly connected to the upper mold 7.

[0023] The overall effect of this embodiment is that, during the workpiece forming process, when the upper mold 7 descends vertically to the forming area, the pre-set protrusions at both ends simultaneously contact the forming part 33 and apply a driving force, thereby pushing the forming part 33 to translate along the track 32. Under the linear guiding constraint provided by the track 32, the forming part 33 can move stably and accurately toward the forming base block 74. Under the cooperative action between the forming part 33 and the forming base block 74, the workpiece will be placed between the two and bear a certain amount of extrusion force, realizing secondary shaping and pressing of the workpiece, effectively improving the integrity of its structural contour and the accuracy of its external dimensions, and further optimizing the geometry and surface quality of the workpiece.

[0024] As the molded part 33 moves forward and participates in the extrusion process, it also drives the first movable rod 34 connected to it to move synchronously. During this process, the linear displacement of the first movable rod 34 forces the first limiting block 36 at its end to compress the first spring 35 located behind it, putting the first spring 35 into an energy storage state. After the molding process is completed, the upper mold 7 is raised, the protrusion stops applying pressure, and the molded part 33 is no longer subjected to forward pushing force. At this time, the compressed first spring 35 will release energy in the reverse direction by utilizing its own elastic recovery characteristics, pushing the first limiting block 36 back to its original position, and further driving the first movable rod 34 and the molded part 33 to move in the opposite direction along the track 32 to the initial position. Through the above-mentioned structural synergy, the automatic reset function of the molded part 33 after completing the pressing task can be realized, ensuring that the device has continuous and efficient cyclic working capability, improving the automation level and working cycle stability of the molding system.

[0025] The operating method and working principle of this device are as follows: During stamping, the workpiece passes between the lower die 4 and the upper die 7. During this process, the elastic force of the second spring 55 pushes the second limiting block 54 downward, thereby causing the second movable rod 53 to slide relative to the fixed plate 51. This allows the extrusion plate 52 to begin extruding and limiting the top of the workpiece, ensuring that the workpiece does not shift during stamping. Simultaneously, the workpiece can be quickly stamped by utilizing the cooperation between the forming module 71 and the forming base block 74. As the workpiece continues to move, it is necessary to cut the formed workpiece. At this time, the cutting block 72 will descend along with the forming module 71 and complete the cutting under the guidance of the limiting sleeve 73, realizing the slitting of the formed parts.

[0026] During the molding process, as the upper mold 7 descends, it also pushes the molded part 33 to move through the protrusions at both ends. During this process, the molded part 33 will approach the molding base block 74 under the guidance of the track 32, and cooperate with the molding base block 74 to squeeze the workpiece, further optimizing the molding shape of the workpiece.

[0027] During the molding process, the molded part 33 will drive the first movable rod 34 to move synchronously, causing the first limiting block 36 to squeeze the first spring 35; and the elastic force of the first spring 35 will push the first limiting block 36 in the opposite direction, so that the molded part 33 will reset after the extrusion is completed.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A stamping die for automotive parts, comprising a base (2) and a top plate (1) fixedly connected to its top, characterized in that: The base (2) is fixedly connected to the top of the lower mold (4), the side wall of the lower mold (4) is equipped with a limiting mechanism (5), the bottom of the top plate (1) is equipped with an upper mold (7), the bottom of the upper mold (7) is fixedly connected to a forming module (71), and the bottom sides of the upper mold (7) are fixedly connected to limiting sleeves (73), and the bottom side of the upper mold (7) is fixedly connected to a cutting block (72), the outer side of the cutting block (72) is fitted with a limiting sleeve (73), the bottom of the limiting sleeve (73) is fixedly connected to the lower mold (4), and the top of the base (2) is symmetrically equipped with two forming components (3). The limiting mechanism (5) includes a fixed plate (51), and a second movable rod (53) is slidably connected to both ends of the fixed plate (51). A second limiting block (54) is fixedly connected to the bottom end of the second movable rod (53), and a pressing plate (52) is fixedly connected to the top end of the second movable rod (53). A second spring (55) is provided between the fixed plate (51) and the second limiting block (54), and the second spring (55) is sleeved on the outer surface of the second movable rod (53).

2. The stamping die for automotive parts according to claim 1, characterized in that: The molding component (3) includes a fixing block (31), and a first movable rod (34) is slidably connected to the inner side of the fixing block (31). A molding part (33) is fixedly connected to one end of the first movable rod (34).

3. The stamping die for automotive parts according to claim 2, characterized in that: The outer side of the molded part (33) is slidably connected to a track (32), and the bottom end of the track (32) is fixedly connected to the top of the base (2).

4. The stamping die for automotive parts according to claim 3, characterized in that: One end of the first movable rod (34) is fixedly connected to a first limiting block (36), and a first spring (35) is provided between the first limiting block (36) and the fixed block (31).

5. A stamping die for automotive parts according to claim 4, characterized in that: The first spring (35) is sleeved on the outer surface of the first movable rod (34).

6. The stamping die for automotive parts according to claim 5, characterized in that: A molding base block (74) is provided between the two fixing blocks (31), and the bottom of the molding base block (74) is fixedly connected to the base (2).

7. The stamping die for automotive parts according to claim 1, characterized in that: A hydraulic cylinder (6) is installed at the center of the top of the top plate (1), and the output end of the hydraulic cylinder (6) is fixedly connected to the upper mold (7).

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