A stamping die for a car front bulkhead

Abstract

This utility model discloses a stamping die for an automotive front panel, including an upper die base. A die shank is centrally installed at the top of the upper die base. Guide sleeves are fixedly installed at the four corners of the upper and lower ends of the upper die base. Guide pillars are provided inside the guide sleeves. The bottom ends of the four guide pillars are fixedly installed with the same lower die base. A die cavity is fixedly installed at the top of the lower die base. A fixing plate is fixedly installed at the bottom of the upper die base. A punch is installed at the bottom of the fixing plate. A stripping assembly is provided between the punch and the die cavity. A cleaning assembly is fixedly installed at the rear of the top of the lower die base. The automotive front panel stamping die of this utility model can drive the stripping plate to rise synchronously when demolding jamming occurs, avoiding the breakage caused by forcibly lifting the stripping plate. At the same time, it can promptly push the debris and finished automotive front panel to the outside of the stamping die, preventing debris and finished automotive front panel from remaining in the stamping die and affecting the next stamping.

Description

Technical Field

[0001] This utility model relates to the field of stamping dies, and in particular to a stamping die for an automobile front panel. Background Technology

[0002] The front bulkhead of an automobile is the partition between the engine compartment and the passenger compartment. It is connected to the floor and the front pillars and is installed under the front bulkhead cover. The front bulkhead cannot be obtained by simple cutting and other processing steps. Each different type of front bulkhead must first prepare a stamping die of the corresponding model and size during production and processing. The stamping die is then installed on a press to stamp the front bulkhead blank before the finished front bulkhead can be obtained.

[0003] Patent CN214719921U discloses a stamping die for an automotive front bulkhead, including a lower die plate with an upper die plate mounted above it, the lower and upper die plates fitting tightly together; a fixing mechanism including a fixing frame and a first tension spring, the top of the fixing frame being connected to the first tension spring for resetting; a punching cone that moves up and down inside the upper die plate, the bottom of the punching cone penetrating through a first limiting hole inside the upper die plate; and a positioning mechanism including a positioning block and a third tension spring, the positioning block being installed through the upper part of the lower die plate. This stamping die for an automotive front bulkhead not only facilitates the fixing of metal sheets, preventing wrinkles in the stamped parts, but also facilitates precise punching of the manufactured parts, increasing the accuracy of the parts, and facilitating rapid positioning of the metal sheets.

[0004] In existing automotive front panel stamping dies, the stripper plate is fixedly installed on the top surface of the die. However, due to the various holes and slots on the automotive front panel, during the stamping process, the automotive front panel is prone to getting stuck on the protrusions on the bottom surface of the punch, causing demolding jamming. Forcibly pulling the automotive front panel at this time will generate a large pulling force on the stripper plate, which can easily cause the stripper plate to break. At the same time, debris is generated during the stamping process, which is not easy to clean. When there is debris on the top surface of the die, it will affect the accuracy of the next stamping. Utility Model Content

[0005] The main purpose of this utility model is to provide a stamping die for an automotive front panel, which can effectively solve the problems in the background technology that easily cause the stripper plate to break, and at the same time, generate debris during the stamping process, which is not easy to clean. When there is debris on the top surface of the die, it will affect the accuracy of the next stamping.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A stamping die for an automotive front panel includes an upper die base, a die shank centrally mounted at the top of the upper die base, guide sleeves fixedly mounted at the four corners of the upper and lower ends of the upper die base, guide pillars inside the guide sleeves, a lower die base fixedly mounted at the bottom of the four guide pillars, a die cavity fixedly mounted at the top of the lower die base, a fixing plate fixedly mounted at the bottom of the upper die base, a punch mounted at the bottom of the fixing plate, a stripping assembly between the punch and the die cavity, a cleaning assembly fixedly mounted at the rear of the top of the lower die base, and storage grooves formed at the four corners of the top surface of the lower die base.

[0008] As a further embodiment of this utility model, the unloading assembly includes an unloading plate, and springs are fixedly installed at the bottom of the unloading plate near the four corners.

[0009] As a further embodiment of this utility model, the cleaning assembly includes a cylinder, a support is fixedly installed on the outer ring of the cylinder at the front, and a cleaning rod is fixedly installed on the front end of the piston rod of the cylinder.

[0010] As a further embodiment of this utility model, the guide post and the guide sleeve are slidably connected, and the storage groove is located on the outer ring of the guide post.

[0011] As a further embodiment of this utility model, the length of the punch is equal to the distance between the inner walls on both sides of the die, and the width of the punch is less than the width of the die.

[0012] As a further embodiment of this utility model, the height of the protrusion on the bottom surface of the punch is greater than the depth of the groove on the die, and a through groove with a corresponding groove position and shape is provided through the upper and lower ends of the lower die base.

[0013] As a further embodiment of this utility model, the spring is sleeved on the outside of the guide post, and the lower end of the spring is located in the receiving groove and fixedly connected to the lower mold base.

[0014] As a further embodiment of this utility model, the bottom surface of the support is fixedly connected to the top surface of the lower mold base, and the length of the cleaning rod is equal to the length of the punch.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This invention incorporates a material unloading assembly. When the front panel of a car is mounted on the protrusion on the bottom surface of the punch, causing a jamming during demolding, the front panel will cause the unloading plate to rise synchronously, stretching the spring. This prevents the punch from forcibly lifting the front panel of the car when the unloading plate is directly fixed to the die, thus avoiding breakage of the unloading plate after being lifted by the front panel. Simultaneously, a cleaning assembly is included. After the unloading assembly completes unloading, the cylinder is activated, driving the cleaning rod forward to push the debris and the front panel of the car outside the stamping die. This facilitates the cleaning of debris and prevents the debris and the front panel of the car from remaining in the stamping die, which would affect the next stamping of the front panel of the car. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a stamping die for an automobile front bulkhead according to the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of a car front panel stamping die after the unloading assembly has been removed.

[0019] Figure 3 This is a front view of the overall structure of a stamping die for an automobile front bulkhead according to this utility model;

[0020] Figure 4 This is a schematic diagram of the unloading assembly in a stamping die for an automotive front bulkhead according to the present invention.

[0021] Figure 5 This is a schematic diagram of the cleaning component in a stamping die for an automotive front bulkhead according to this utility model.

[0022] In the diagram: 1. Upper mold base; 2. Mold shank; 3. Guide sleeve; 4. Guide post; 5. Lower mold base; 6. Die; 7. Punch; 8. Unloading assembly; 9. Cleaning assembly; 10. Storage groove; 11. Fixing plate; 801. Unloading plate; 802. Spring; 901. Cylinder; 902. Support; 903. Cleaning rod. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] like Figures 1-5 As shown, a stamping die for a car front panel includes an upper die base 1, a die handle 2 centrally mounted at the top of the upper die base 1, guide sleeves 3 fixedly mounted at the four corners of the upper and lower ends of the upper die base 1, guide pillars 4 inside the guide sleeves 3, a lower die base 5 fixedly mounted at the bottom of the four guide pillars 4, a die cavity 6 fixedly mounted at the top of the lower die base 5, a fixing plate 11 fixedly mounted at the bottom of the upper die base 1, a punch 7 mounted at the bottom of the fixing plate 11, a stripping assembly 8 between the punch 7 and the die cavity 6, a cleaning assembly 9 fixedly mounted at the rear of the top of the lower die base 5, and storage grooves 10 opened at the four corners of the top surface of the lower die base 5.

[0025] The unloading assembly 8 includes an unloading plate 801. Springs 802 are fixedly installed at the bottom of the unloading plate 801 near the four corners. By setting the unloading assembly 8, it is easy to demold the front panel of the car after the stamping is completed.

[0026] The cleaning assembly 9 includes a cylinder 901. A support 902 is fixedly installed on the outer ring of the cylinder 901. A cleaning rod 903 is fixedly installed on the front end of the piston rod of the cylinder 901. By setting the cleaning assembly 9, the waste, debris and automobile front panel located on the top surface of the die 6 are pushed out of the mold.

[0027] The guide post 4 is slidably connected to the guide sleeve 3. The receiving groove 10 is located on the outer ring of the guide post 4. The guide post 4 is matched with the guide sleeve 3 to limit the movement and prevent the relative position of the upper die holder 1 and the lower die holder 5 from shifting during the stamping process.

[0028] The length of the punch 7 is equal to the distance between the inner walls on both sides of the die 6, and the width of the punch 7 is less than the width of the die 6.

[0029] The height of the protrusion on the bottom surface of the punch 7 is greater than the depth of the groove on the die 6, and through slots with corresponding groove positions and shapes are opened at the upper and lower ends of the lower die base 5 to avoid insufficient punching of the punch 7 on the car front bulkhead blank due to the influence of the thickness of the stripper plate 801 during the stamping process, which would lead to stamping failure.

[0030] Spring 802 is sleeved on the outside of guide post 4, and the lower end of spring 802 is located in receiving groove 10 and fixedly connected to lower die base 5. By setting spring 802, the unloading assembly 8 can move synchronously with the lifting and lowering of punch 7, so as to avoid the punch 7 directly lifting the unloading plate 801 and causing breakage when jamming occurs between the front panel of the car and punch 7. At the same time, receiving groove 10 is set to receive spring 802, so as to avoid the compression of spring 802 affecting the lowering and stamping of punch 7.

[0031] The bottom surface of the support 902 is fixedly connected to the top surface of the lower mold base 5. The length of the cleaning rod 903 is equal to the length of the punch 7. The cylinder 901 is fixed by the support 902. When the cylinder 901 is started, it drives the cleaning rod 903 to push the waste, debris and car front panel on the top surface of the die 6 to the outside of the mold.

[0032] It should be noted that this utility model is a stamping die for a car front panel. The lower die base 5 supports the die cavity 6 and the guide post 4. In use, the stamping die is first connected to the press through the die handle 2. Then, the car front panel blank is placed on the top surface of the die cavity 6. When the press is started, it drives the upper die base 1 to descend, which in turn drives the fixed plate 11 and the punch 7 to descend synchronously, and stamping the car front panel blank to obtain the car front panel.

[0033] During the stamping process, the guide sleeve 3 and guide post 4 are used to improve the stability of the upper die holder 1 in raising and lowering. During stamping, some scrap material falls directly to the bottom of the lower die holder 5 through the groove on the die 6 and the through groove on the lower die holder 5. The debris generated by stamping falls on the top surface of the die 6. After the car front panel blank is stamped, the press drives the punch 7 to rise through the die handle 2. The car front panel is blocked by the stripper plate 801 and disengages from the punch 7. Then the cylinder 901 is started to drive the cleaning rod 903 forward, pushing the debris on the top surface of the die 6 and the car front panel out of the mold to avoid affecting the next stamping.

[0034] If, during the rising process of the punch 7, the front panel of the car is fitted onto the protrusion on the bottom surface of the punch 7, causing the demolding to become stuck, the front panel of the car will drive the stripper plate 801 to rise synchronously, and the spring 802 will be stretched. At this time, the front panel of the car can be manually removed.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An automobile dash panel stamping die characterized by: The upper mold base (1) is provided with a mold handle (2) installed at the center of the top of the upper mold base (1). Guide sleeves (3) are fixedly installed at the four corners of the upper and lower ends of the upper mold base (1). Guide pillars (4) are provided inside the guide sleeves (3). The same lower mold base (5) is fixedly installed at the bottom of the four guide pillars (4). A die (6) is fixedly installed at the top of the lower mold base (5). A fixing plate (11) is fixedly installed at the bottom of the upper mold base (1). A punch (7) is installed at the bottom of the fixing plate (11). An unloading assembly (8) is provided between the punch (7) and the die (6). A cleaning assembly (9) is fixedly installed at the rear of the top of the lower mold base (5). A storage groove (10) is opened at the four corners of the top surface of the lower mold base (5).

2. The stamping die for a front panel of an automobile according to claim 1, characterized in that: The unloading assembly (8) includes an unloading plate (801), and springs (802) are fixedly installed at the bottom of the unloading plate (801) near the four corners.

3. The stamping die for a front panel of an automobile according to claim 1, characterized in that: The cleaning assembly (9) includes a cylinder (901), a support (902) is fixedly installed on the outer ring of the cylinder (901) at the front, and a cleaning rod (903) is fixedly installed on the front end of the piston rod of the cylinder (901).

4. The stamping die for a front panel of an automobile according to claim 1, characterized in that: The guide post (4) is slidably connected to the guide sleeve (3), and the storage groove (10) is located on the outer ring of the guide post (4).

5. The stamping die for a front panel of an automobile according to claim 1, characterized in that: The length of the punch (7) is equal to the distance between the inner walls on both sides of the die (6), and the width of the punch (7) is less than the width of the die (6).

6. The stamping die for a front panel of an automobile according to claim 1, characterized by: The height of the protrusion on the bottom surface of the punch (7) is greater than the depth of the groove on the die (6), and through slots with corresponding groove positions and shapes are provided at the upper and lower ends of the lower die base (5).

7. The stamping die for an automobile front bulkhead according to claim 2, characterized in that: The spring (802) is sleeved on the outside of the guide post (4), and the lower end of the spring (802) is located in the receiving groove (10) and fixedly connected to the lower mold base (5).

8. The stamping die for a front panel of an automobile according to claim 3, characterized by: The bottom surface of the support (902) is fixedly connected to the top surface of the lower mold base (5), and the length of the cleaning rod (903) is equal to the length of the punch (7).

Images