Inclined punching mechanism of stamping die

Abstract

The utility model relates to the technical field of stamping dies, in particular to an inclined punching mechanism of a stamping die, which comprises an upper die holder and a lower die holder, a stripper plate is arranged below the upper die holder, an upper die spring is connected between the upper die holder and the stripper plate, the stripper plate is fixedly connected with a wedge slider, a wedge stripper plate is fixed below the wedge slider, and a lower die spring is connected between the upper die holder and the lower die holder. A spring is arranged above the wedge stripper plate, an upper base plate is fixed above the punch fixing plate, a driving block is fixed at the bottom of the upper die base and on the upper side of the upper base plate, a lower die floating plate is arranged above the lower die base, a lower die spring is connected between the lower die floating plate and the lower die base, a lower die fixing seat is fixed on the lower die base, and a female die insert is fixed on the lower die fixing seat. Compared with the prior art, the space of the lower die cannot be occupied, parts of the wedge are all fixed in the upper die stripper plate, materials and the stripper plate are pressed downwards together to enable forming to be more stable, the driving block, the wedge sliding block and the lower die fixing base can be adjusted or replaced when the angle of the wedge needs to be adjusted, and adjustment is facilitated.

Description

Technical Field

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

[0002] The traditional oblique punching mechanism is a method in which the driving block is fixed to the lower die, and the punch must be fixed on the upper die slider. For example, the oblique punching mechanism of a stamping die disclosed in Publication No. CN207787438U drives the slider by the driving block set on the lower die, and then drives the punch through the slider. Since the slider needs to occupy the lateral space of the die, this type of method is only suitable for products with a larger die space, and the punching angle is inconvenient to adjust. Summary of the invention

[0003] The utility model provides an oblique punching mechanism for a punching die in order to overcome the deficiencies of the prior art.

[0004] In order to achieve the above-mentioned purpose, a stamping die oblique punching mechanism is designed, comprising an upper die base and a lower die base, a stripping plate is provided under the upper die base, an upper die spring is connected between the upper die base and the stripping plate, the stripping plate is fixedly connected to an oblique wedge slider, an oblique wedge stripping plate is fixed under the oblique wedge slider, a spring is provided above the oblique wedge stripping plate, the lower part of the punch passes through the spring and can extend out of the oblique wedge stripping plate, the upper part of the punch is fixedly connected to the punch fixing plate, an upper pad is fixed above the punch fixing plate, a driving block with an inclined surface is fixed on the upper side of the upper pad at the bottom of the upper die base, a lower die floating plate is provided above the lower die base, a lower die spring is connected between the lower die floating plate and the lower die base, the side surface of the lower die floating plate clamps the material, a lower die fixing base is fixed on the lower die base, a concave die insert is fixed on the lower die fixing base, and the concave die insert cooperates with the punch for punching.

[0005] An upper conical positioning block is fixed below the stripping plate, a lower conical positioning block is provided above the lower die seat, a conical groove is provided at the bottom of the upper conical positioning block, and a conical protrusion is provided at the top of the lower conical positioning block to be embedded in the groove of the upper conical positioning block.

[0006] An upper die limit block is fixed below the upper die base, and a lower die limit block is fixed above the lower die base at a relative position to the upper die limit block.

[0007] An inner limit block is fixed below the upper die seat, and when the die is closed, the inner limit block is supported above the stripping plate.

[0008] The upper die spring and the lower die spring are sleeved with spring guide pins, one end of the spring guide pin in the upper die spring is fixedly connected to the stripping plate, and one end of the spring guide pin in the lower die spring is fixedly connected to the lower die floating plate.

[0009] A lower die balance block is fixed above the lower die seat, and when the die is closed, the lower die balance block is supported below the stripping plate.

[0010] The inclined wedge sliding block is provided with a guide hole, the inclined wedge stripping plate is arranged at the bottom of the guide hole, and the punch fixing plate moves in the guide hole.

[0011] Compared with the prior art, the utility model fixes the driving block on the upper die seat, and the punch and the slider are fixed on the stripping plate, so the space of the lower die is not occupied, all the parts of the inclined wedge are fixed in the stripping plate of the upper die, and the material is pressed down together with the stripping plate to make the molding more stable. When the inclined wedge angle needs to be adjusted, the driving block, the inclined wedge slider and the lower die fixing seat can be adjusted or replaced, which is convenient for adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the mold opening state of the utility model.

[0013] Figure 2 It is a schematic diagram of the closed mold state of the utility model.

[0014] See also Figure 1-Figure 2 , among which, 1 is the inner limit block, 2 is the upper die spring, 3 is the spring guide pin, 4 is the upper pad, 5 is the punch fixing plate, 6 is the upper die seat, 7 is the upper die limit block, 8 is the stripping plate, 9 is the lower die limit block, 10 is the upper conical positioning block, 11 is the lower conical positioning block, 12 is the lower die balancing block, 13 is the lower die floating plate, 14 is the lower die spring, 15 is the driving block, 16 is the inclined wedge slider, 17 is the inclined wedge stripping plate, 18 is the spring, 19 is the punch, 20 is the material, 21 is the die insert, 22 is the lower die fixing seat, and 23 is the lower die seat. DETAILED DESCRIPTION

[0015] The utility model is further described below with reference to the accompanying drawings.

[0016] like Figure 1-Figure 2 As shown, a stripping plate 8 is provided below the upper die base 6, an upper die spring 2 is connected between the upper die base 6 and the stripping plate 8, the stripping plate 8 is fixedly connected to the inclined wedge slider 16, an inclined wedge stripping plate 17 is fixed below the inclined wedge slider 16, a spring 18 is provided above the inclined wedge stripping plate 17, a punch 19 passes through the spring 18 below and can extend out of the inclined wedge stripping plate 17, the punch 19 is fixedly connected to the punch fixing plate 5 above, an upper pad 4 is fixed above the punch fixing plate 5, a driving block 15 with an inclined surface is fixed on the upper side of the upper pad 4 at the bottom of the upper die base 6, a lower die floating plate 13 is provided above the lower die base 23, a lower die spring 14 is connected between the lower die floating plate 13 and the lower die base 23, a side surface of the lower die floating plate 13 clamps the material 20, a lower die fixing seat 22 is fixed on the lower die base 23, a die insert 21 is fixed on the lower die fixing seat 22, and the die insert 21 cooperates with the punch 19 to punch holes.

[0017] An upper conical positioning block 10 is fixed below the stripper plate 8, a lower conical positioning block 11 is provided above the lower die seat 23, a conical groove is provided at the bottom of the upper conical positioning block 10, and a conical protrusion is provided at the top of the lower conical positioning block 11 to be embedded in the groove of the upper conical positioning block 10. The conical positioning fit can ensure the accuracy and hole position of each punching.

[0018] An upper die limit block 7 is fixed below the upper die base 6, and a lower die limit block 9 is fixed above the lower die base 23 at a relative position to the upper die limit block 7. The cooperation between the upper die limit block 7 and the lower die limit block 9 can ensure the height when the die is closed.

[0019] An inner limit block 1 is fixed below the upper die seat 6, and when the mold is closed, the inner limit block 1 is supported above the stripper plate 8. The inner limit block 1 can ensure the distance between the stripper plate 8 and the upper die seat 6 when the mold is closed.

[0020] The upper die spring 2 and the lower die spring 14 are sleeved with a spring guide pin 3, one end of the spring guide pin 3 in the upper die spring 2 is fixedly connected to the stripper plate 8, and one end of the spring guide pin 3 in the lower die spring 14 is fixedly connected to the lower die floating plate 13. The spring guide pin 3 enables the upper die spring 2 and the lower die spring 3 to expand and contract along a straight line.

[0021] A lower die balance block 12 is fixed above the lower die seat 23. When the die is closed, the lower die balance block 12 is supported below the stripper plate 8. The lower die balance block 12 supports the stripper plate downward when the die is closed.

[0022] The inclined wedge slide block 16 is provided with a guide hole, the inclined wedge stripper plate 17 is arranged at the bottom of the guide hole, and the punch fixing plate 5 moves in the guide hole.

[0023] When the utility model is used, the material 20 is first clamped on one side of the lower die floating plate 13, and then the upper die seat 1 is pressed down, the stripper plate 8 is pressed on the lower die floating plate 13, the lower die spring 14 is compressed, and the lower die floating plate 13 moves downward until the material 20 is fixed on the lower die fixed seat 22 by the stripper plate 8 and the wedge stripper plate 17, and then the upper die spring 2 begins to compress, and the inclined surface of the driving block 15 presses the upper pad 4 downward, so that the punch 19 is pushed out of the wedge stripper plate 17, and the punch 19 cooperates with the die insert 21 to complete the punching. When demolding, the spring 18 pushes the punch fixing plate 5 to move in the opposite direction along the guide hole to retract the punch 19, and then the stripper plate 8 moves upward again, so that the punch and the die insert 21 will not interfere with each other, and the demolding of the product is completed. When the wedge angle needs to be adjusted, the driving block 15, the wedge slider 16 and the lower die fixed seat 22 can be adjusted or replaced, which is convenient for adjustment without replacing the entire mold.

Claims

1. A stamping die oblique punching mechanism, comprising an upper die base (6) and a lower die base (23), characterized in that: A stripping plate (8) is provided below the upper die base (6), an upper die spring (2) is connected between the upper die base (6) and the stripping plate (8), the stripping plate (8) is fixedly connected to an inclined wedge slider (16), an inclined wedge stripping plate (17) is fixed below the inclined wedge slider (16), a spring (18) is provided above the inclined wedge stripping plate (17), a punch (19) passes through the spring (18) below and can extend out of the inclined wedge stripping plate (17), the punch (19) is fixedly connected to a punch fixing plate (5) above, and a spring (18) is fixed above the punch fixing plate (5) An upper pad (4), a driving block (15) with an inclined surface is fixed on the upper side of the upper pad (4) at the bottom of the upper die seat (6), a lower die floating plate (13) is provided above the lower die seat (23), a lower die spring (14) is connected between the lower die floating plate (13) and the lower die seat (23), a material (20) is clamped on the side of the lower die floating plate (13), a lower die fixing seat (22) is fixed on the lower die seat (23), a concave die insert (21) is fixed on the lower die fixing seat (22), and the concave die insert (21) cooperates with the punch (19) to punch holes.

2. The oblique punching mechanism of a stamping die according to claim 1, characterized in that: An upper conical positioning block (10) is fixed below the stripping plate (8), a lower conical positioning block (11) is provided above the lower die seat (23), a conical groove is provided at the bottom of the upper conical positioning block (10), and a conical protrusion is provided at the top of the lower conical positioning block (11) and is embedded in the groove of the upper conical positioning block (10).

3. The oblique punching mechanism of a stamping die according to claim 1, characterized in that: An upper die limit block (7) is fixed below the upper die seat (6), and a lower die limit block (9) is fixed above the lower die seat (23) at a position relative to the upper die limit block (7).

4. The oblique punching mechanism of a stamping die according to claim 1, characterized in that: An inner limit block (1) is fixed below the upper die seat (6), and when the die is closed, the inner limit block (1) is supported above the stripping plate (8).

5. The oblique punching mechanism of a stamping die according to claim 1, characterized in that: A spring guide pin (3) is sleeved inside the upper die spring (2) and the lower die spring (14); one end of the spring guide pin (3) inside the upper die spring (2) is fixedly connected to the stripping plate (8); and one end of the spring guide pin (3) inside the lower die spring (14) is fixedly connected to the lower die floating plate (13).

6. The oblique punching mechanism of a stamping die according to claim 1, characterized in that: A lower die balance block (12) is fixed above the lower die seat (23), and when the die is closed, the lower die balance block (12) is supported below the stripping plate (8).

7. The oblique punching mechanism of a stamping die according to claim 1, characterized in that: The inclined wedge slide block (16) is provided with a guide hole, the inclined wedge stripping plate (17) is arranged at the bottom of the guide hole, and the punch fixing plate (5) moves in the guide hole.

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