Stamping device and system for small sheet metal parts of vehicle

Abstract

The invention belongs to the technical field of stamping equipment, and particularly relates to a vehicle small sheet metal part stamping device and system.The vehicle small sheet metal part stamping device comprises a base, a lower die, an upper die, a top plate and a discharging mechanism, and the discharging mechanism is composed of a synchronous push plate, an inclined table and a traction assembly; the driver comprises a first rack and a driving / driven / driving gear, the restorer comprises a telescopic rod, a limiting piece and a spring, stable operation and conversion of a transmission ratio are ensured, so that the requirement for the stroke of the discharging action is met, and the automatic discharging device has the beneficial effects that automatic discharging is achieved, the production efficiency is improved, the assembly linkage performance is high, extra debugging is not needed, design is exquisite, and cost is low. And clamping deviation is avoided, and the discharging stability is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of stamping equipment, and in particular relates to a stamping device and system for small sheet metal parts of a vehicle. Background Art

[0002] Vehicle sheet metal parts are the main part of the vehicle shell. In the existing vehicle sheet metal parts stamping device, after the sheet metal parts are placed in the stamping device for stamping, most of them need manual labor or additional external unloading devices to take out the materials. This not only increases the production cost, but also may lead to low production efficiency and increase production risks. In addition, most of the additional external unloading devices require manual repeated debugging and timing according to the stamping process. The maintenance is professional and difficult, which makes it difficult to meet the current sheet metal stamping fast and stable production needs. Summary of the invention

[0003] The purpose of the present invention is to provide a stamping device and system for small sheet metal parts of a vehicle, so as to solve the problems mentioned in the background technology.

[0004] In order to achieve the above technical objectives, the technical solution adopted by the present invention is as follows:

[0005] A stamping device for a small sheet metal part of a vehicle comprises a base, a lower die, an upper die and a top plate, wherein the lower die is arranged at the upper end of the base, the upper die is arranged at the lower end of the top plate and the top plate is connected to an external lifting transmission mechanism, the top plate and the base are positioned and connected by a guide slide bar, and a material discharge mechanism is arranged between the top plate and the base;

[0006] The number of the unloading components is two and they are symmetrically arranged on the left and right sides of the base. The unloading mechanism includes a synchronous push plate, an inclined platform and a traction component. The synchronous push plate is arranged on the top plate, the inclined platform is arranged on the upper end of the base and corresponds to the position of the synchronous push plate, and the traction component is arranged in the inclined platform and corresponds to the lower mold.

[0007] The inclined platform is composed of a lower platform and an upper platform, a driver is arranged between the upper platform and the lower platform, the traction assembly is arranged between the lower platform and the lower mold, and the driver is transmission-connected with the traction assembly.

[0008] The synchronous push plate is L-shaped as a whole and extends downward relative to the top plate.

[0009] The driver includes a first rack, a driving gear, a driven gear and a driving gear. An empty slot is opened in the middle of the lower platform. The driving gear and the driven gear rotate and mesh with each other in the empty slot. The diameter of the driving gear is larger than that of the driven gear. The driving gear and the driven gear have the same diameter and are arranged on the side of the lower platform. The first rack is arranged at the lower end of the upper platform and extends into the empty slot to mesh with the driving gear. A resetter is provided between the upper platform and the lower platform.

[0010] The resetter includes a telescopic rod, a limiting plate and a spring. The lower platform is provided with a step cavity. The limiting plate is slidably arranged in the step cavity. The two ends of the telescopic rod are respectively connected to the limiting plate and the lower end of the upper platform. The spring is arranged in the step cavity and located at the other end of the limiting plate.

[0011] The traction assembly includes a second rack, a lever and a paddle, which are connected together to form a U-shaped structure. The second rack is slidably connected to the lower table and meshes with the driving gear. The lever is connected to the second rack, and the paddle is connected to the lever and corresponds to the stamping groove area of ​​the lower mold.

[0012] The lower table is rectangular, the upper table is a right-angled trapezoid with the hypotenuse facing the lower mold and corresponding to the synchronous push plate. A tension spring is also provided between the lower table and the base. The lower table is slidably connected to the base through a guide rail. The tension spring pulls the lower table to slide toward the lower mold in a stationary state.

[0013] A loading plate is also provided on the front side of the lower mold, and the upper end of the loading plate is flush with the upper end surface of the stamping area of ​​the lower mold. The upper end of the loading plate is connected to the external fixing part through an elastic part. An extension rod is provided at one end of the rack facing the loading plate. The extension rod is slidably connected to the base through a bracket. A lifting plate is provided at the end of the extension rod. The end of the lifting plate facing the lower platform is an inclined surface and matches the loading plate.

[0014] Compared with the prior art, this application has at least the following advantages:

[0015] The synchronous push plate moves synchronously with the upper mold, and the driver and the traction component are linked to achieve rapid and automatic demoulding and unloading after the stamping is completed. The automatic unloading function improves production efficiency, reduces manual intervention, and improves the linkage between components. The driver adopts a transmission structure of active gears, driven gears and driving gears. Through different diameter ratios, short-distance movement can produce more circular rotations. The efficient transmission ratio design meets the needs of long-distance displacement of the traction component and unloading push, and is more adaptable to production needs. The spring in the resetter cooperates with the telescopic rod to realize the reset function of the upper platform, preparing for the next stamping and unloading. The setting of the tension spring cooperates with the right-angle trapezoidal structure of the upper platform. When the synchronous push plate is pressed down, it is first compressed by the spring and then by the inclined surface of the upper platform. The inclined table is pushed to move to realize the unloading action of slow first and then fast; the unloading action of slow first and then fast can avoid the parts being stuck or offset due to pushing the material too fast at the beginning of unloading. The large reset tension of the tension spring can provide a large demoulding thrust for the sheet metal parts that are stuck with the lower die after partial stamping, so that they can be loosened before unloading and pushed, thereby improving the unloading stability; the loading plate is used as a preparation table for the external loading mechanism, and the upper end is flush with the upper end surface of the stamping area of ​​the lower die. The loading plate is connected to the external fixing part through an elastic part, and can be misaligned with the lower die during unloading, ensuring that the stamped sheet metal parts can be unloaded stably; the overall structure of the device and the system is compact, and the components fit closely, which improves the overall stability and durability. The compact structural design is also convenient for installation and maintenance, reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further illustrated by means of the non-limiting examples given in the accompanying drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the overall structure from another angle of the present invention.

[0019] Figure 3 It is a structural cross-sectional view along the lower platform of the present invention.

[0020] Figure 4 for Figure 3 A magnified schematic diagram of center A.

[0021] Base 1, lower mold 11, upper mold 12, top plate 13, synchronous push plate 2, lower platform 3, upper platform 31, first rack 4, active gear 41, driven gear 42, driving gear 43, empty slot 44, telescopic rod 5, limit plate 51, spring 52, step cavity 53, second rack 6, shift rod 61, shift piece 62, tension spring 7, loading plate 8, elastic member 81, extension rod 82, lifting plate 83. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0023] Example 1: Figure 1-4 As shown, a stamping device for a small sheet metal part of a vehicle comprises a base 1, a lower die 11, an upper die 12 and a top plate 13, wherein the lower die 11 is arranged at the upper end of the base 1, the upper die 12 is arranged at the lower end of the top plate 13 and the top plate 13 is connected to an external lifting transmission mechanism, the top plate 13 and the base 1 are positioned and connected by a guide slide bar, and a material discharge mechanism is arranged between the top plate 13 and the base 1;

[0024] There are two unloading assemblies symmetrically arranged on the left and right sides of the base 1. The unloading mechanism includes a synchronous push plate 2, an inclined platform and a traction assembly. The synchronous push plate 2 is arranged on the top plate 13, the inclined platform is arranged on the upper end of the base 1 and corresponds to the position of the synchronous push plate 2, and the traction assembly is arranged in the inclined platform and corresponds to the lower mold 11.

[0025] The inclined platform is composed of a lower platform 3 and an upper platform 31. A driver is provided between the upper platform 31 and the lower platform 3. A traction assembly is provided between the lower platform 3 and the lower mold 11. The driver is in transmission connection with the traction assembly.

[0026] When performing sheet metal stamping processing, the sheet metal part to be stamped is placed between the upper mold 12 and the lower mold 11. During stamping, the external lifting transmission mechanism drives the upper mold 12 on the top plate 13 to move downward until it cooperates with the lower mold 11 to stamp and shape the sheet metal part. The synchronous push plate 2 on the top plate 13 will move up and down synchronously, and produce corresponding pushing or decompression on the inclined table during the lifting process. Therefore, during the downward movement of the synchronous push plate 2, the upper table 31 will move downward and the driver will drive the traction assembly, so that the traction assembly is away from the mold during mold closing and stamping, and is close to the mold during mold opening. This will not affect the stamping and shaping process, but can also achieve rapid and automatic demolding and unloading after the stamping is completed, thereby improving the overall production efficiency and improving the linkage between components without the need for additional debugging.

[0027] The synchronous push plate 2 is L-shaped as a whole and extends downward relative to the top plate 13 .

[0028] The driver includes a first rack 4, a driving gear 41, a driven gear 42 and a driving gear 43. A slot 44 is opened in the middle of the lower table 3. The driving gear 41 and the driven gear 42 rotate and mesh with each other in the slot 44. The diameter of the driving gear 41 is larger than that of the driven gear 42. The driving gear 43 has the same diameter as the driven gear 42 and is arranged on the side of the lower table 3. The first rack 4 is arranged at the lower end of the upper table 31 and extends into the slot 44 to mesh with the driving gear 41. A reset device is provided between the upper table 31 and the lower table 3.

[0029] The resetter includes a telescopic rod 5, a limiting plate 52 and a spring 52. The lower platform 3 is provided with a step cavity 53. The limiting plate 52 is slidably arranged in the step cavity 53. The two ends of the telescopic rod 5 are respectively connected to the limiting plate 52 and the lower end of the upper platform 31. The spring 52 is arranged in the step cavity 53 and is located at the other end of the limiting plate 52.

[0030] The traction assembly includes a second rack 6, a lever 61 and a paddle 62. The second rack 6, the lever 61 and the paddle 62 are connected together to form a U-shaped structure. The second rack 6 is slidably connected to the lower table 3 and meshes with the driving gear 43. The lever 61 is connected to the second rack 6. The paddle 62 is connected to the lever 61 and corresponds to the stamping groove area of ​​the lower mold 11.

[0031] When the synchronous push plate 2 moves downward, it will generate downward pressure on the upper table 31. At this time, the upper table 31 moves downward, and the first rack 4 drives the driving gear 41 in the empty slot 44 of the lower table 3, thereby driving the driven gear 42, and at the same time drives the driving gear 43 to drive the second rack 6 in the external traction assembly. Since the diameter ratio of the driving gear 41 and the driven gear 42 is different, the transmission ratio is also different, which can produce a large number of circular rotations in a short distance movement, thereby meeting the long-distance displacement of the lever 61 and the paddle 62 in the traction assembly and the material unloading push, which better meets the production needs. At the same time, since the synchronous push plate 2 is completely synchronized with the displacement of the upper mold 12, the components are relatively stable when stationary, and the unloading reaction is synchronized;

[0032] After the synchronous push plate 2 is separated from the contact with the upper die, the spring 52 in the resetter pushes the limit plate 52 to move upward, and then the telescopic rod 5 is used to reset the upper platform 31 upward, so as to achieve the function of preparing and resetting the traction assembly for the next time.

[0033] The lower table 3 is rectangular, the upper table 31 is a right-angled trapezoid with the hypotenuse facing the lower mold 11 and corresponding to the synchronous push plate 2. A tension spring 7 is also provided between the lower table 3 and the base 1. The lower table 3 is slidably connected to the base 1 through a guide rail. The tension spring 7 pulls the lower table 3 to slide toward the lower mold 11 in a stationary state.

[0034] The spring 7 is set to cooperate with the right-angled trapezoidal structure of the upper platform 31, when the synchronous push plate 2 exerts a downward pressure on the upper platform 31, it will first generate pressure on the spring 52 in the resetter, wherein the maximum compression tension of the spring 52 is less than the minimum tension tension of the spring 7, that is, the synchronous push plate 2 will first completely press the upper platform 31 and the lower platform 3 to merge, and then push the entire inclined platform to move through the inclined surface of the upper platform 31. In this way, during the unloading stage, the traction assembly as a whole is first slowly pulled by the tension spring 7 along with the inclined platform, and then the driver is quickly driven by the reset of the upper platform 31. This can achieve a unloading action that is first slow and then fast, and can avoid the jamming or offset of the components caused by pushing the material too fast at the beginning of unloading. At the same time, the larger reset tension of the tension spring 7 can also provide a larger demoulding thrust for the sheet metal parts that are partially stamped and clamped with the lower die, so that the unloading push can be performed after they are loosened. This can further improve the stability of unloading.

[0035] Example 2: Figure 1-3 As shown, based on the further improvement of Example 1, a loading plate 8 is further provided on the front side of the lower mold 11, and the upper end of the loading plate 8 is flush with the upper end surface of the stamping area of ​​the lower mold 11, and the upper end of the loading plate 8 is connected to the external fixing part through an elastic member 81, and an extension rod 82 is provided at one end of the rack facing the loading plate 8, and the extension rod 82 is slidably connected to the base 1 through a bracket, and a lifting plate 83 is provided at the end of the extension rod 82, and the lifting plate 83 is inclined at one end facing the lower platform 3 and matches with the loading plate 8.

[0036] Furthermore, during the stamping process, the loading plate 8 is used as a preparation table for the external loading mechanism, and at the same time, in order to meet the need of discharging the sheet metal from the front side during blanking, and it is previously known that the traction assembly will move toward the front side of the mold when the mold is opened, and because the extension rod 82 is connected to the rack and a lifting plate 83 is provided at the end, during the blanking process, the lifting plate 83 always maintains contact with the loading plate 8, and is compensated by the stroke of the elastic member 81. Therefore, the loading plate 8 will be misplaced in the lower mold 11 during blanking, ensuring that the stamped sheet metal can be stably unloaded. Until the unloading is completed, the lifting plate 83 continues to move forward until it is out of contact with the loading plate 8. At this time, the loading plate 8 is reset by the elastic member 81, which can ensure that the upper end surface of the loading plate 8 is flush with the upper end surface of the stamping area of ​​the lower mold 11, so as to achieve an effect that is more convenient for loading. The elastic member 81 can be any component with reset elasticity such as a spring 52 or a spring clip.

[0037] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A stamping device for small sheet metal parts for vehicles, comprising a base, a lower die, an upper die and a top plate, wherein the lower die is arranged at the upper end of the base, the upper die is arranged at the lower end of the top plate and the top plate is connected to an external lifting transmission mechanism, and the top plate is positioned and connected to the base through a guide slide bar, characterized in that: A material discharge mechanism is provided between the top plate and the base; The number of the unloading components is two and they are symmetrically arranged on the left and right sides of the base. The unloading mechanism includes a synchronous push plate, an inclined platform and a traction component. The synchronous push plate is arranged on the top plate, the inclined platform is arranged on the upper end of the base and corresponds to the position of the synchronous push plate, and the traction component is arranged in the inclined platform and corresponds to the lower mold. The inclined platform is composed of a lower platform and an upper platform, a driver is arranged between the upper platform and the lower platform, the traction assembly is arranged between the lower platform and the lower mold, and the driver is transmission-connected with the traction assembly.

2. A stamping device for small sheet metal parts for vehicles according to claim 1, characterized in that: The synchronous push plate is L-shaped as a whole and extends downward relative to the top plate.

3. A stamping device for small sheet metal parts for vehicles according to claim 2, characterized in that: The driver includes a first rack, a driving gear, a driven gear and a driving gear. An empty slot is opened in the middle of the lower platform. The driving gear and the driven gear rotate and mesh with each other in the empty slot. The diameter of the driving gear is larger than that of the driven gear. The driving gear and the driven gear have the same diameter and are arranged on the side of the lower platform. The first rack is arranged at the lower end of the upper platform and extends into the empty slot to mesh with the driving gear. A resetter is provided between the upper platform and the lower platform.

4. A stamping device for small sheet metal parts for vehicles according to claim 3, characterized in that: The resetter includes a telescopic rod, a limiting plate and a spring. The lower platform is provided with a step cavity. The limiting plate is slidably arranged in the step cavity. The two ends of the telescopic rod are respectively connected to the limiting plate and the lower end of the upper platform. The spring is arranged in the step cavity and located at the other end of the limiting plate.

5. A stamping device for small sheet metal parts for vehicles according to claim 4, characterized in that: The traction assembly includes a second rack, a lever and a paddle, which are connected together to form a U-shaped structure. The second rack is slidably connected to the lower table and meshes with the driving gear. The lever is connected to the second rack, and the paddle is connected to the lever and corresponds to the stamping groove area of ​​the lower mold.

6. A stamping device for small sheet metal parts for vehicles according to claim 4, characterized in that: The lower table is rectangular, the upper table is a right-angled trapezoid with the hypotenuse facing the lower mold and corresponding to the synchronous push plate. A tension spring is also provided between the lower table and the base. The lower table is slidably connected to the base through a guide rail. The tension spring pulls the lower table to slide toward the lower mold in a stationary state.

7. A stamping device for small sheet metal parts for vehicles according to claim 4, characterized in that: A loading plate is also provided on the front side of the lower mold, and the upper end of the loading plate is flush with the upper end surface of the stamping area of ​​the lower mold. The upper end of the loading plate is connected to the external fixing part through an elastic part. An extension rod is provided at one end of the rack facing the loading plate. The extension rod is slidably connected to the base through a bracket. A lifting plate is provided at the end of the extension rod. The end of the lifting plate facing the lower platform is an inclined surface and matches the loading plate.

8. A stamping system for small sheet metal parts of a vehicle, characterized by: It comprises a feeding mechanism, a guide plate, a stamping power part, an upper die, a lower die and a stamping mechanism, wherein the feeding mechanism is the stamping device described in any one of claims 1-7.

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