Multi-station punch forming die for automobile shell

By introducing a combination structure of rotating rod, turntable, arm and support plate into the multi-station stamping die for automobile housing, the problem of material plate swaying was solved, stable support and efficient stamping were achieved, and the processing quality was improved.

CN224168529UActive Publication Date: 2026-04-28TONGJI AUTO PARTS (NANTONG) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TONGJI AUTO PARTS (NANTONG) CO LTD
Filing Date
2025-05-26
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

In existing multi-station stamping dies for automotive housings, the material stop plate is prone to shaking during the stamping process due to the lack of a supporting structure, which affects the stamping effect.

Method used

A multi-station stamping die for automotive housing was designed. A rotary rod drives a turntable and an arm to push the support plate upward, supporting the bottom of the material blocking plate. Combined with the stable structure of the telescopic rod and the connecting plate, the material blocking plate is prevented from shaking. The servo motor drives the slider and the sliding rod to achieve stable sealing and opening of the material blocking plate.

Benefits of technology

This design achieves stable support and movement of the material blocking plate, preventing swaying, improving stamping effect and processing efficiency, and ensuring the forming quality of the automotive body shell.

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    Figure CN224168529U_ABST
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Abstract

The utility model discloses an automobile casing multi-station punch forming die, and particularly relates to the technical field of punching, the automobile casing multi-station punch forming die comprises a box body, an installation cavity is arranged in the box body, two plate grooves are symmetrically arranged in the box body, a material blocking plate is respectively connected in the two plate grooves in a sliding mode, a rotating rod is rotatably connected in the installation cavity, and a material blocking plate is arranged in the rotating rod. A rotating disc is fixedly connected to the outer side of the rotating rod, a connecting shaft is fixedly arranged at the edge of the surface of the rotating disc, a supporting plate is arranged under the two material blocking plates, an arm rod is connected between the supporting plate and the connecting shaft through a hinge, and a transmission assembly for driving the rotating rod is arranged on the front surface of the box body. The bottoms of the two closed material blocking plates are stably supported through the supporting plate, and the situation that the two material blocking plates shake, and then the stamping effect of the automobile shell is affected is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of stamping technology, and more specifically, to a multi-station stamping die for automobile housings. Background Technology

[0002] Stamping is a pressure processing method that uses a stamping die mounted on a press to apply pressure to a material at room temperature, causing it to separate or plastically deform, thereby obtaining the desired part. In the processing of automotive parts, some parts also need to be obtained by stamping. Different types of automotive parts use different stamping dies, and this type of multi-station automotive part stamping die is one of them.

[0003] A search revealed that publication number CN220112101U discloses a multi-station automotive parts stamping die, comprising a housing and a material feeder. Several material feeders are formed on the top of the housing, and a discharge chute is formed on the outside of each material feeder. A baffle plate is positioned below the discharge chute, and telescopic rods are fixedly connected to both sides of the baffle plate. The telescopic rods have grooves on their outer surfaces, and a storage box is positioned below the baffle plate. After one stamping operation, the telescopic rods drive the baffle plate outwards to embed into the groove, allowing the product inside the material feeder to slide from the discharge chute into the storage box below. This enables workers to directly retrieve the product, which is safer than workers directly touching the inside of the material feeder for retrieval, and avoids affecting the die's processing progress, thus increasing processing speed and applicability. The inventors discovered the following problems with the existing technology during the development of this utility model:

[0004] However, when the telescopic rod closes the two blocking plates to block the material drop chute at the bottom of the material passage, the lack of a support structure at the bottom of the two closed blocking plates may cause the hydraulic rod to push the fixed plate, causing the stamping head at the bottom of the fixed plate to move downwards. When stamping the car body in the material passage, the two closed blocking plates will be subjected to the stamping force and shake, thus affecting the stamping effect of the car body in the material passage.

[0005] Therefore, a multi-station stamping die for automobile housing is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a multi-station stamping die for automobile housing, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a multi-station stamping forming mold for automobile housing, comprising a housing, an installation cavity being provided inside the housing, two plate slots being symmetrically provided inside the housing and above the installation cavity, a material blocking plate being slidably connected in each of the two plate slots, a rotating rod being rotatably connected inside the installation cavity, a turntable being fixedly connected to the outside of the rotating rod, a connecting shaft being fixedly provided at the edge of the turntable surface, a support plate being provided directly below the two material blocking plates, an arm being hinged between the support plate and the connecting shaft, and a transmission assembly for driving the rotating rod being provided on the front surface of the housing.

[0008] Preferably, the transmission assembly includes a pulley and a transmission belt. The pulley is rotatably connected to the side wall of the front surface of the housing. A pulley is fixedly installed on the outer side of one end of the rotating rod. The two pulleys are connected by a transmission belt. A servo motor that drives the pulley is bolted to the side wall of the front surface of the housing.

[0009] Preferably, two connecting plates are symmetrically fixed to the inner sidewall of the mounting cavity, and telescopic rods are respectively provided between the two connecting plates and the bottom wall of the support plate.

[0010] Preferably, a bidirectional threaded screw is rotatably connected inside the housing. One end of the bidirectional threaded screw is connected to a servo motor that drives the bidirectional threaded screw. Two sliders are threadedly connected to the outer side of the bidirectional threaded screw. The two sliders are fixedly connected to one end of two material blocking plates, respectively. A slide rod is fixedly installed inside the housing. Two sliders are slidably sleeved on the outer wall of the slide rod. The two sliders are fixedly connected to the other end of the two material blocking plates, respectively.

[0011] Preferably, a fixing rod is fixedly connected to each of the four corners of the top of the box, and the tops of the four fixing rods are connected to a top plate. A fixing plate is connected to the bottom wall of the mounting cavity through a hydraulic rod. A punching head is bolted to the bottom wall of the fixing plate. A material passage is provided at the top of the box and directly below the fixing plate.

[0012] Preferably, a limiting ring is fixedly welded at each of the four corners of the fixing plate, and the four limiting rings are respectively slidably sleeved on the outside of the four fixing rods.

[0013] Preferably, a storage box is slidably connected to the front surface of the box body. The storage box is located on the bottom wall of the mounting cavity. A base is fixedly installed on the bottom wall of the mounting cavity. A base plate is installed below the base. Several damping springs are distributed between the base and the base plate.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] 1. Compared with the prior art, this multi-station stamping die for automobile housing rotates via a turntable driven by a rotating rod. The rotating turntable is connected to one end of an arm via a connecting shaft, allowing the arm to push the support plate upward. The upward-moving support plate then supports the bottom wall of the closed material blocking plate. This structure provides stable support to the bottom of the two closed material blocking plates, preventing them from shaking and affecting the stamping effect of the automobile housing.

[0016] 2. Compared with the prior art, the multi-station stamping forming mold for automobile housing has a connection between the telescopic rod set on the bottom wall of the support plate and the connecting plate fixedly set on the inner side wall of the mounting cavity. This allows the support plate to move up and down stably, avoiding left and right or front and back swaying while the support plate moves up and down. Attached Figure Description

[0017] Figure 1 This is a frontal three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a cross-sectional structural diagram of the box body of this utility model.

[0019] Figure 3 This is a schematic diagram of the internal structure of the mounting cavity of this utility model.

[0020] Figure 4 This is a cross-sectional view of the base structure of this utility model.

[0021] The attached diagram is labeled as follows: 1. Housing; 2. Mounting cavity; 3. Plate groove; 4. Material blocking plate; 5. Slider; 6. Double-sided threaded screw; 7. Slide rod; 8. Support plate; 9. Arm; 10. Turntable; 11. Rotating rod; 12. Connecting shaft; 13. Pulley; 14. Transmission belt; 15. Telescopic rod; 16. Fixing plate; 17. Material passageway; 18. Punching head; 19. Fixing rod; 20. Top plate; 21. Hydraulic rod; 22. Fixing plate; 23. Limiting ring; 24. Storage box; 25. Base; 26. Base plate; 27. Damping spring. Detailed Implementation

[0022] 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.

[0023] Example 1

[0024] As attached Figures 1 to 4The multi-station stamping die for an automotive housing shown includes a housing 1, an installation cavity 2 inside the housing 1, two symmetrically arranged plate slots 3 inside the housing 1 and above the installation cavity 2, a material blocking plate 4 slidably connected to each of the two plate slots 3, a rotating rod 11 rotatably connected inside the installation cavity 2, a turntable 10 fixedly connected to the outside of the rotating rod 11, a connecting shaft 12 fixedly arranged at the edge of the surface of the turntable 10, a support plate 8 arranged directly below the two material blocking plates 4, an arm 9 hinged between the support plate 8 and the connecting shaft 12, a transmission assembly for driving the rotating rod 11 arranged on the front surface of the housing 1, two connecting plates 16 symmetrically fixedly arranged on the inner sidewall of the installation cavity 2, and a telescopic rod 15 arranged between the two connecting plates 16 and the bottom wall of the support plate 8.

[0025] In operation, the device drives the rotating rod 11 to rotate via a transmission assembly. The rotating rod 11 then drives the turntable 10 to rotate. The rotating turntable 10 is connected to one end of the arm 9 via a connecting shaft 12, allowing the arm 9 to push the support plate 8 upward. The upward-moving support plate 8 supports the bottom wall of the closed material blocking plate 4. This structure provides stable support for the bottom of the two closed material blocking plates 4, preventing them from shaking and affecting the stamping effect of the car body. At the same time, the connection between the telescopic rod 15 on the bottom wall of the support plate 8 and the connecting plate 16 fixed to the inner wall of the mounting cavity 2 allows the support plate 8 to move up and down stably, preventing it from shaking left and right or back and forth while moving up and down.

[0026] Example 2

[0027] Based on Example 1, the solution in Example 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 4 As shown below, see details:

[0028] In a preferred embodiment, the transmission assembly includes a pulley 13 and a transmission belt 14. The pulley 13 is rotatably connected to the side wall of the front surface of the housing 1. A pulley 13 is fixedly installed on the outer side of one end of the rotating rod 11. The two pulleys 13 are connected by the transmission belt 14. A servo motor that drives the pulley 13 is bolted to the side wall of the front surface of the housing 1. When driving the rotating rod 11, one pulley 13 can be directly driven to rotate by the servo motor, and then the other pulley 13 fixedly sleeved on the outer side of the rotating rod 11 can be driven to rotate by the transmission belt 14, thereby realizing the rotation adjustment of the two pulleys 13 and the rotating rod 11.

[0029] In a preferred embodiment, a bidirectional threaded screw 6 is rotatably connected inside the housing 1. A servo motor is connected to one end of the bidirectional threaded screw 6 to drive it. Two sliders 5 are threadedly connected to the outside of the bidirectional threaded screw 6. The two sliders 5 are fixedly connected to one end of the two material blocking plates 4. A slide rod 7 is fixedly installed inside the housing 1. Two sliders 5 are slidably sleeved on the outer wall of the slide rod 7. The two sliders 5 are fixedly connected to the other end of the two material blocking plates 4. When the two material blocking plates 4 are closed to block the bottom of the material passage 17, the bidirectional threaded screw 6 can be directly driven to rotate by the servo motor. The rotating bidirectional threaded screw 6 drives the two sliders 5 to move closer to each other. The two sliders 5 moving closer to each other drive the two material blocking plates 4 to move closer, thereby blocking the bottom of the material passage 17.

[0030] In a preferred embodiment, a fixing rod 19 is fixedly connected to each of the four corners of the top of the housing 1. Then, a top plate 20 is connected to the top of the four fixing rods 19. Next, a fixing plate 22 is connected to the bottom wall of the mounting cavity 2 via a hydraulic rod 21. A punching head 18 is bolted to the bottom wall of the fixing plate 22. A material passage trough 17 is provided at the top of the housing 1 and directly below the fixing plate 22. A limiting ring 23 is fixedly welded to each of the four corners of the fixing plate 22. The four limiting rings 23 are slidably sleeved on the outside of the four fixing rods 19. When the device is in use, the fixing plate 22 and the punching head 18 set on the bottom wall of the fixing plate 22 can be moved down directly by the hydraulic rod 21. The moving punching head 18 punches the car body placed in the material passage trough 17.

[0031] In a preferred embodiment, a storage box 24 is slidably connected to the front surface of the housing 1. The storage box 24 can collect the stamped car body. The storage box 24 is located on the bottom wall of the mounting cavity 2. A base 25 is fixedly installed on the bottom wall of the mounting cavity 2. A base plate 26 is installed below the base 25. A plurality of damping springs 27 are distributed between the base 25 and the base plate 26. The damping springs 27 are used to buffer and protect the impact force on the housing 1 during stamping.

[0032] The working process of this utility model is as follows: First, a servo motor drives a pulley 13 to rotate. Then, the transmission belt 14 drives another pulley 13 fixedly sleeved on the outside of the rotating rod 11 to rotate, thereby realizing the rotation adjustment of the two pulleys 13 and the rotating rod 11. Then, the rotating rod 11 drives the turntable 10 to rotate. Then, the rotating turntable 10 is connected to one end of the arm 9 through the connecting shaft 12, so that the arm 9 can push the support plate 8 to move upward. The upward-moving support plate 8 supports the bottom wall of the closed material blocking plate 4. This structure can form a stable support for the bottom of the two closed material blocking plates 4 through the support plate 8, avoiding the two material blocking plates 4 from shaking.

[0033] Then, the hydraulic rod 21 drives the fixed plate 22 and the stamping head 18 set on the bottom wall of the fixed plate 22 to move down. The moving stamping head 18 stamps the car body placed in the material passage 17. After stamping, the servo motor drives the bidirectional threaded screw 6 to rotate. Then, the rotating bidirectional threaded screw 6 drives the two sliders 5 to move away from each other. The two sliders 5 moving away from each other drive the two blocking plates 4 to separate, thereby releasing the blockage at the bottom of the material passage 17. Then, the stamped car body in the material passage 17 falls into the storage box 24 for unified collection and processing. The above is the working principle of this multi-station stamping forming mold for car bodies.

Claims

1. A multi-station press forming die for an automobile chassis, comprising a box (1), characterized in that: The housing (1) has an installation cavity (2) inside. Two plate slots (3) are symmetrically opened inside the housing (1) and above the installation cavity (2). A material blocking plate (4) is slidably connected in each of the two plate slots (3). A rotating rod (11) is rotatably connected in the installation cavity (2). A turntable (10) is fixedly connected to the outside of the rotating rod (11). A connecting shaft (12) is fixedly set at the edge of the surface of the turntable (10). A support plate (8) is set directly below the two material blocking plates (4). An arm (9) is hinged between the support plate (8) and the connecting shaft (12). A transmission component for driving the rotating rod (11) is set on the front surface of the housing (1).

2. The multi-station press forming die for an automobile case according to claim 1, wherein: The transmission assembly includes a pulley (13) and a transmission belt (14). The pulley (13) is rotatably connected to the front side wall of the housing (1). The pulley (13) is fixedly installed on the outer side of one end of the rotating rod (11). The two pulleys (13) are connected by transmission belt (14). A servo motor that drives the pulley (13) is bolted to the front side wall of the housing (1).

3. The multi-station stamping die for automobile housing according to claim 1, characterized in that: Two connecting plates (16) are symmetrically fixed on the inner side wall of the mounting cavity (2), and telescopic rods (15) are respectively provided between the two connecting plates (16) and the bottom wall of the support plate (8).

4. The multi-station stamping die for automobile housing according to claim 1, characterized in that: A bidirectional threaded screw (6) is rotatably connected inside the housing (1). One end of the bidirectional threaded screw (6) is connected to a servo motor that drives the bidirectional threaded screw (6). Two sliders (5) are threadedly connected to the outside of the bidirectional threaded screw (6). The two sliders (5) are fixedly connected to one end of the two material blocking plates (4) respectively. A slide rod (7) is fixedly installed inside the housing (1). Two sliders (5) are slidably sleeved on the outer wall of the slide rod (7). The two sliders (5) are fixedly connected to the other end of the two material blocking plates (4) respectively.

5. The multi-station stamping die for automobile housing according to claim 1, characterized in that: A fixing rod (19) is fixedly connected to each of the four corners of the top of the box (1). The tops of the four fixing rods (19) are connected to a top plate (20). A fixing plate (22) is connected to the bottom wall of the mounting cavity (2) through a hydraulic rod (21). A punch head (18) is bolted to the bottom wall of the fixing plate (22). A material passage (17) is provided at the top of the box (1) and directly below the fixing plate (22).

6. The multi-station stamping die for automobile housing according to claim 5, characterized in that: Each of the four corners of the fixed plate (22) is fixedly welded with a limiting ring (23), and the four limiting rings (23) are respectively slidably sleeved on the outside of the four fixed rods (19).

7. The multi-station stamping die for automobile housing according to claim 1, characterized in that: The front surface of the box (1) is slidably connected to a storage box (24). The storage box (24) is located on the bottom wall of the mounting cavity (2). A base (25) is fixedly installed on the bottom wall of the mounting cavity (2). A base plate (26) is installed below the base (25). Several damping springs (27) are distributed between the base (25) and the base plate (26).

Citation Information

Patent Citations

  • Multi-station automobile part punch forming die

    CN220112101U