Stamping die

Abstract

The utility model discloses a stamping die which comprises a base, a lower die body is installed at the upper end of the base, a die cavity is formed in the upper end face of the lower die body, a die core is installed in the die cavity, a through groove is formed in the lower die body and extends out of the lower die body, and a buffering mechanism used for buffering is arranged in the through groove. The buffer mechanism comprises a moving plate slidably connected into the through groove, two symmetrically-arranged buffer rods are fixedly connected to the upper end of the moving plate, the buffer rods penetrate through the upper end of the lower die and are slidably connected with the lower die, and the lower end of the moving plate is elastically connected with the inner wall of the through groove through two symmetrically-arranged first springs. And an ejection mechanism for ejecting materials in the lower die is arranged in the through groove. The die is reasonable in structure, the buffer mechanism is arranged, the movable plate moves downwards to extrude the first spring, the upper die is buffered, and the situation that the impact force of the upper die is large, and consequently the lower die is damaged can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, in particular to a stamping die. Background Art

[0002] In the field of mechanical manufacturing, a stamping die is a commonly used die for stamping metal sheets. Existing stamping dies usually include an upper die and a lower die, a stamping cavity is formed between the upper die and the lower die, a metal sheet is placed in the stamping cavity, and the upper die moves downward to stamp the metal sheet.

[0003] However, the existing stamping dies have some shortcomings. For example, due to the lack of buffering in traditional stamping dies, the strong impact force of the upper die during stamping may cause damage to the lower die. Therefore, the utility model proposes a stamping die to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and a stamping die is proposed, which realizes buffering of the upper die by setting a buffer mechanism, moving a moving plate downward, and squeezing a first spring, thereby effectively avoiding the upper die from being damaged by a large impact force.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A stamping die comprises a base, a lower die is mounted on the upper end of the base, a die cavity is formed on the upper end surface of the lower die, a die core is mounted inside the die cavity, a through slot is formed inside the lower die, the through slot extends to the outside of the lower die, a buffer mechanism for buffering is arranged in the through slot, the buffer mechanism comprises a movable plate slidably connected in the through slot, two symmetrically arranged buffer rods are fixedly connected to the upper end of the movable plate, the buffer rods pass through the upper end of the lower die and are slidably connected thereto, the lower end of the movable plate is elastically connected to the inner wall of the through slot by two symmetrically arranged first springs, an ejection mechanism for ejecting material in the lower die is arranged in the through slot, and a lifting mechanism for lifting the die core is arranged on the movable plate.

[0007] Preferably, the ejection mechanism comprises two symmetrically arranged ejection rods fixedly connected to the upper end of the movable plate, and the ejection rods penetrate the lower end of the mold core and are slidably connected thereto.

[0008] Preferably, the lifting mechanism comprises a rectangular rod arranged above the movable plate, a fixed block is fixedly sleeved on the rectangular rod, a threaded groove is arranged in the rectangular rod, and the rectangular rod passes through the inner wall of the mold cavity and is slidably connected thereto.

[0009] Preferably, a threaded rod is rotatably connected to the movable plate, and the threaded rod is inserted into the threaded groove and threadedly connected thereto.

[0010] Preferably, the lower end of the fixed block and the upper end of the movable plate are elastically connected via a second spring.

[0011] Preferably, four limiting rods distributed in a rectangular shape are fixedly connected to the upper end of the base, and an upper mold matching the lower mold is slidably sleeved on the four limiting rods.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. By setting up a buffer mechanism, when the hydraulic assembly is used to drive the upper die to move downward to complete the stamping process, the lower die first contacts the buffer rod, pushing the movable plate to move, thereby squeezing the first spring to achieve buffering of the upper die, which can effectively avoid the impact force of the upper die being too large and causing damage to the lower die.

[0014] 2. By setting up the ejection mechanism, during stamping, the movable plate drives the ejector rod to move downward and out of the mold core. When the stamping is completed, the first spring resets, thereby driving the movable plate to reset, pushing the ejector rod to reset and ejecting the product in the mold core, which can greatly improve the convenience of material removal and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the structure of a stamping die proposed by the utility model;

[0016] Figure 2 A sectional stereoscopic diagram of a lower die of a stamping die proposed by the utility model;

[0017] Figure 3 This is a bottom-view stereoscopic view of a lower die section of a stamping die proposed by the utility model;

[0018] Figure 4 for Figure 3 A magnified view of the structure in Figure 2.

[0019] In the figure: 1 base, 2 limit rod, 3 through slot, 4 lower die, 5 upper die, 6 movable plate, 7 first spring, 8 ejector rod, 9 buffer rod, 10 mold core, 11 mold cavity, 12 rectangular rod, 13 fixed block, 14 second spring, 15 threaded rod. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific implementation disclosed below.

[0021] Reference Figure 1-4 A stamping die comprises a base 1, a lower die 4 is installed on the upper end of the base 1, a die cavity 11 is opened on the upper end surface of the lower die 4, a die core 10 is installed inside the die cavity 11, a through slot 3 is opened inside the lower die 4, the through slot 3 extends to the outside of the lower die 4, a buffer mechanism for buffering is arranged in the through slot 3, the buffer mechanism comprises a movable plate 6 slidably connected in the through slot 3, two symmetrically arranged buffer rods 9 are fixedly connected to the upper end of the movable plate 6, the buffer rods 9 pass through the upper end of the lower die 4 and are slidably connected thereto, the lower end of the movable plate 6 is elastically connected to the inner wall of the through slot 3 by two symmetrically arranged first springs 7, it should be noted that the die cavity 11 and the die core 10 cooperate with each other, and the inner wall of the die cavity 11 fits with the outer wall of the die core 10.

[0022] In the utility model, an ejection mechanism for ejecting the material in the lower mold 4 is arranged in the through groove 3, and the ejection mechanism includes two symmetrically arranged ejection rods 8 fixedly connected to the upper end of the movable plate 6, and the ejection rods 8 pass through the lower end of the mold core 10 and are slidably connected thereto. It should be noted that the upper ends of the two ejection rods 8 are fixedly connected with buffer pads, and the buffer pads are made of rubber, which can protect the surface of the product to prevent the ejection rods 8 from scratching the surface of the product during ejection.

[0023] In the utility model, a lifting mechanism for lifting the mold core 10 is provided on the movable plate 6, and the lifting mechanism includes a rectangular rod 12 arranged above the movable plate 6, a fixed block 13 is fixedly sleeved on the rectangular rod 12, a threaded groove is provided in the rectangular rod 12, the rectangular rod 12 passes through the inner wall of the mold cavity 11 and is slidably connected thereto, a threaded rod 15 is rotatably connected through the movable plate 6, the threaded rod 15 is inserted in the threaded groove and is threadedly connected thereto, the lower end of the fixed block 13 is elastically connected to the upper end of the movable plate 6 by a second spring 14, the second spring 14 is used to support and limit the rectangular rod 12, the rectangular rod 12 can move with the movable plate 6, and the mold core 10 needs to be lifted, and the movable plate 6 needs to be in the initial position.

[0024] When the utility model is used, the workpiece to be processed is first placed between the two buffer rods 9 at the upper end of the lower die 4, and then the upper die 5 is pushed downward by the hydraulic device. During the downward movement of the upper die 5, it first contacts the upper ends of the buffer rods 9 on both sides, and squeezes the buffer rods 9 to move downward, thereby pushing the movable plate 6 to move downward. The downward movement of the movable plate 6 can squeeze the first spring 7. Under the action of the first spring 7, the upper die 5 is buffered. During the downward movement of the movable plate 6, the ejector rod 8 can be driven to move downward to move it out of the mold core 10. When the stamping is completed, the hydraulic device pulls the upper die 5 to reset. Under the action of the first spring 7, the movable plate 6 is reset, thereby driving the ejector rod 8 to reset and ejecting the product in the mold core 10.

[0025] When the mold core 10 needs to be replaced, the threaded rod 15 is rotated to drive the rectangular rod 12 threadably connected thereto to move upward, thereby pushing the mold core 10 in the mold cavity 11 out of the mold cavity 11, making it easy to remove and quickly replace the mold core 10.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A stamping die, comprising a base (1), characterized in that: A lower mold (4) is installed at the upper end of the base (1), a mold cavity (11) is provided on the upper end surface of the lower mold (4), a mold core (10) is installed inside the mold cavity (11), a through slot (3) is provided inside the lower mold (4), the through slot (3) extends to the outside of the lower mold (4), a buffer mechanism for buffering is arranged in the through slot (3), the buffer mechanism comprises a movable plate (6) slidably connected in the through slot (3), two symmetrically arranged buffer rods (9) are fixedly connected to the upper end of the movable plate (6), the buffer rods (9) pass through the upper end of the lower mold (4) and are slidably connected thereto, the lower end of the movable plate (6) is elastically connected to the inner wall of the through slot (3) by two symmetrically arranged first springs (7), an ejection mechanism for ejecting material in the lower mold (4) is arranged in the through slot (3), and a lifting mechanism for lifting the mold core (10) is arranged on the movable plate (6).

2. A stamping die according to claim 1, characterized in that: The ejection mechanism comprises two symmetrically arranged ejection rods (8) fixedly connected to the upper end of the movable plate (6); the ejection rods (8) penetrate the lower end of the mold core (10) and are slidably connected thereto.

3. A stamping die according to claim 2, characterized in that: The lifting mechanism comprises a rectangular rod (12) arranged above the movable plate (6), a fixed block (13) is fixedly sleeved on the rectangular rod (12), a thread groove is arranged in the rectangular rod (12), and the rectangular rod (12) passes through the inner wall of the mold cavity (11) and is slidably connected thereto.

4. A stamping die according to claim 3, characterized in that: A threaded rod (15) is rotatably connected to the movable plate (6), and the threaded rod (15) is inserted into the threaded groove and threadedly connected thereto.

5. A stamping die according to claim 4, characterized in that: The lower end of the fixed block (13) and the upper end of the movable plate (6) are elastically connected via a second spring (14).

6. A stamping die according to claim 5, characterized in that: Four rectangularly distributed limiting rods (2) are fixedly connected to the upper end of the base (1), and an upper die (5) matching with a lower die (4) is slidably sleeved on the four limiting rods (2).

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