A metal sheet stamping die

Abstract

The present application relates to the technical field of sheet metal stamping processing, and discloses a metal sheet stamping die, including a lower die with a forming notch, an upper die for stamping the sheet metal, the upper die including an upper punch die matched with the lower die, a channel tube provided in the upper punch die, a plurality of oblique micro-holes provided on the channel tube, an upper die seat for fixing the upper die, the upper die seat including a fixed plate with a temporary storage tank for lubricating oil, a lubricating supply assembly provided in the temporary storage tank for lubricating oil, the lubricating supply assembly including a push rod slidably arranged on the fixed plate; the present application realizes the formation of an oil film by spraying lubricating oil during the stamping process through the coordinated use of the upper die, the upper die seat, the lubricating supply assembly, the supplementary assembly, and the connecting assembly, thereby reducing the friction and wear of the die, and improving the service life and stamping accuracy. Compared with the prior art, it has the advantages of long service life and high stamping accuracy.

Description

Technical Field

[0001] The present application relates to the technical field of sheet metal stamping processing, and in particular to a metal sheet metal stamping die. Background Art

[0002] In the process of metal sheet processing, stamping is a common process, which uses stamping dies to shape the metal sheet to achieve the required shape and size.

[0003] During the use of traditional metal sheet stamping dies, the upper die moves back and forth in the vertical direction when the upper die cooperates with the lower die to stamp the metal sheet. Due to factors such as friction, wear and high temperature, the die surface is prone to roughness and reduced precision, which affects the quality of the stamping product and the production efficiency.

[0004] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0005] In order to solve the problem of rough mold surface and reduced precision due to factors such as friction, wear and high temperature when stamping metal sheets, the present application provides a metal sheet stamping die.

[0006] The metal sheet stamping die provided in this application adopts the following technical solution:

[0007] A metal sheet stamping die, comprising

[0008] A lower die with a forming notch for supporting the sheet metal in forming;

[0009] An upper die for stamping a plate, the upper die comprising an upper punch matched with a lower die, a channel tube provided in the upper punch, and a plurality of oblique micro-holes provided on the channel tube;

[0010] An upper die base for fixing an upper die, the upper die base comprising a fixed plate with a temporary lubricating oil storage tank, a lubricating supply assembly being arranged in the temporary lubricating oil storage tank, the lubricating supply assembly comprising a push rod slidably arranged on the fixed plate, a movable plate being arranged on the push rod, the movable plate being fixedly connected to the upper die, a plurality of connecting assemblies being arranged between the temporary lubricating oil storage tank and the branch channel pipe, and a plurality of resetting assemblies being arranged between the movable plate and the fixed plate.

[0011] Preferably, a piston plate is provided on one end of the push rod away from the movable plate, and the piston plate is slidably disposed in the temporary storage tank for lubricating oil.

[0012] Preferably, the connecting component includes a replenishing pipe arranged on the upper punch die, both ends of the replenishing pipe are respectively connected to the lubricating oil temporary storage tank and the branch channel pipe, and a second one-way valve is arranged on the replenishing pipe.

[0013] Preferably, a supplementary component is provided on one side of the fixed plate, and the supplementary component includes a connector connected to the temporary storage tank for lubricating oil, and a one-way valve is installed on the connector.

[0014] Preferably, the reset assembly comprises a guide column arranged on the movable plate, the end of the guide column slides through the fixed plate, and a reset spring is arranged between the fixed plate and the movable plate.

[0015] In summary, this application includes the following beneficial technical effects:

[0016] Through the coordinated use of the upper die, the upper die seat, the lubrication supply assembly, the supplementary assembly, and the connecting assembly, when stamping, the upper die contacts the plate and the lower die, so that the return spring buffer contracts, and at the same time the movable plate pushes the push rod and the piston plate to squeeze the lubricating oil in the lubricating oil temporary storage tank, so that the lubricating oil enters the branch channel pipe through the supplementary pipe, increases the pressure in the branch channel pipe, and realizes the lubricating oil injection to the punch side of the upper die through the oblique micropores, so that there is a layer of oil film on the contact surface between the upper die and the lower die, which reduces the friction and wear of the die during the stamping process and improves the service life and stamping accuracy of the die; compared with the existing technology, it has the effects of long service life and high stamping accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of a three-dimensional structure from a first-view perspective of an embodiment of the application;

[0018] Figure 2 is a schematic diagram of a second perspective stereoscopic structure of an embodiment of the application;

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure from a third perspective of an embodiment of the application.

[0020] Explanation of the reference numerals: 1. lower die; 2. upper die; 201. upper punch; 202. channel tube; 203. oblique micropores; 3. upper die seat; 301. fixed plate; 302. movable plate; 4. lubrication supply assembly; 401. push rod; 402. piston plate; 5. replenishing assembly; 501. connector; 502. one-way valve 1; 6. connecting assembly; 601. replenishing pipe; 602. one-way valve 2; 7. reset assembly; 701. guide column; 702. reset spring. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-3 This application is described in further detail.

[0022] The present application embodiment discloses a metal sheet stamping die. Figure 1-3 A metal sheet stamping die comprises a lower die 1 mounted on a lower die base, and an upper die base 3 mounted on a hydraulic drive unit, the upper die base 3 comprises a fixed plate 301 mounted on the hydraulic drive unit, the lower end of the fixed plate 301 is connected to a movable plate 302 through a reset component 7, a lubricating oil temporary storage tank is arranged in the fixed plate 301, a lubricating oil supply component 4 is slidably mounted in the lubricating oil temporary storage tank, the lubricating oil supply component 4 comprises a push rod 401 fixedly mounted on the movable plate 302, and a piston plate 402 slidably mounted in the lubricating oil temporary storage tank, the push rod 401 is fixedly connected to the piston plate 402, an upper die 2 is mounted on the lower side of the movable plate 302, and the upper die 2 comprises a lubricating oil supply component 4 mounted on the movable plate 3 02, a branch channel tube 202 is arranged around the punch part on the upper punch 201, and the branch channel tube 202 is connected with the temporary storage tank of lubricating oil through a connecting component 6. During stamping, the movable plate 302 pushes the push rod 401 and the piston plate 402 to squeeze the lubricating oil in the temporary storage tank of lubricating oil, so that the lubricating oil enters the branch channel tube 202 through the replenishing pipe 601, and the pressure in the branch channel tube 202 is increased, so that the lubricating oil is sprayed to the punch side of the upper punch 201 through the oblique micropores 203, so that a layer of oil film is formed on the contact surface of the upper punch 201 and the lower die 1, thereby reducing the friction and wear of the mold during the stamping process and improving the service life and stamping accuracy of the mold.

[0023] Reference Figure 3 The upper punch die 201 is provided with a plurality of oblique micro-holes 203, and the ends of the oblique micro-holes 203 are biased toward the punch position.

[0024] Reference Figure 2 The connecting component 6 includes a replenishing pipe 601 installed on the upper punch 201, and the two ends of the replenishing pipe 601 are respectively connected to the lubricating oil temporary storage tank and the branch channel pipe 202. A one-way valve 2 602 is installed on the replenishing pipe 601. A replenishing component 5 is installed on one side of the fixed plate 301. The replenishing component 5 includes a connector 501 that is connected to the lubricating oil temporary storage tank, and a one-way valve 1 502 is installed on the connector 501. The connector 501 is connected to an external lubricating oil storage device, and one-way communication is achieved through the one-way valve 2 602 and the one-way valve 1 502. During stamping, the lubricating oil enters the branch channel pipe 202 through the replenishing pipe 601. When the fixed plate 301 is reset, the lubricating oil in the lubricating oil storage device enters the lubricating oil temporary storage tank through the connector 501.

[0025] Reference Figure 1 The reset assembly 7 includes a guide column 701 installed on the movable plate 302. The end of the guide column 701 slides through the fixed plate 301. A reset spring 702 is installed between the fixed plate 301 and the movable plate 302. The guide column 701 is used for guidance. The elastic force of the reset spring 702 realizes buffering during stamping and extracts lubricating oil during resetting.

[0026] The implementation principle of a metal plate stamping die in the embodiment of the present application is as follows: during stamping, the fixed plate 301, the movable plate 302, and the upper die 2 are pushed downward by the hydraulic drive unit. When the upper punch 201 contacts the plate and the lower die 1, the return spring 702 is buffered and contracted. At the same time, the movable plate 302 pushes the push rod 401 and the piston plate 402 to squeeze the lubricating oil in the lubricating oil temporary storage tank, so that the lubricating oil enters the branch channel pipe 202 through the replenishing pipe 601, increases the pressure in the branch channel pipe 202, and realizes that the lubricating oil passes through the oblique micro Hole 203 sprays onto the side of the punch of the upper punch 201, and the hydraulic drive unit continues to move downward. The upper punch 201 cooperates with the lower die 1 to stamp the metal sheet. Due to the presence of an oil film on the contact surface between the upper punch 201 and the lower die 1, the friction and wear of the die during the stamping process are reduced, and the service life and stamping accuracy of the die are improved. When the hydraulic drive unit is reset, the upper punch 201 is separated from the lower die 1, and the reset spring 702 is reset at the same time, driving the piston plate 402 to move upward to extract the lubricating oil in the lubricating oil storage device.

[0027] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0028] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0029] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

[0030] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A metal sheet stamping die, characterized in that: include A lower die (1) with a forming notch, used for supporting and forming the plate; An upper die (2) for stamping a plate, the upper die (2) comprising an upper punch die (201) adapted to the lower die (1), a channel tube (202) being arranged inside the upper punch die (201), and a plurality of oblique micropores (203) being arranged on the channel tube (202); An upper die base (3) for fixing an upper die (2), the upper die base (3) comprising a fixed plate (301) with a temporary lubricating oil storage tank, a lubricating supply component (4) being arranged in the temporary lubricating oil storage tank, the lubricating supply component (4) comprising a push rod (401) slidably arranged on the fixed plate (301), a movable plate (302) being arranged on the push rod (401), the movable plate (302) being fixedly connected to the upper die (2), a plurality of connecting components (6) being arranged between the temporary lubricating oil storage tank and the branch channel pipe (202), and a plurality of reset components (7) being arranged between the movable plate (302) and the fixed plate (301).

2. A metal sheet stamping die according to claim 1, characterized in that: A piston plate (402) is provided on one end of the push rod (401) away from the moving plate (302), and the piston plate (402) is slidably disposed in the temporary storage tank for lubricating oil.

3. A metal sheet stamping die according to claim 2, characterized in that: The connecting component (6) comprises a replenishing pipe (601) arranged on the upper punch (201), the two ends of the replenishing pipe (601) are respectively connected to the lubricating oil temporary storage tank and the branch channel pipe (202), and a second one-way valve (602) is arranged on the replenishing pipe (601).

4. A metal sheet stamping die according to claim 3, characterized in that: A supplementary component (5) is provided on one side of the fixed plate (301), and the supplementary component (5) comprises a connector (501) connected to the temporary storage tank for lubricating oil, and a one-way valve (502) is installed on the connector (501).

5. A metal sheet stamping die according to claim 4, characterized in that: The reset assembly (7) comprises a guide column (701) arranged on the movable plate (302), the end of the guide column (701) slides through the fixed plate (301), and a reset spring (702) is arranged between the fixed plate (301) and the movable plate (302).

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