Part hole flanging and orifice chamfering die

Abstract

The utility model relates to a part hole flanging and orifice chamfering die which comprises an upper die and a lower die, the upper die comprises an upper die base, a hole flanging female die, a chamfering male die and a chamfering male die fixing plate, and the chamfering male die is connected with the upper die base through the chamfering male die fixing plate; a first nitrogen spring is arranged on the upper die base and penetrates through the chamfering male die fixing plate to be connected with the hole flanging female die. A first through hole is formed in the hole flanging female die, and the chamfering male die extends into the first through hole. The lower die comprises a lower die base, a push plate, a female die frame, a hole flanging male die and a female die frame fixing plate, the push plate is arranged in the female die frame, and the female die frame is connected with the lower die base through the female die frame fixing plate; a second nitrogen spring is arranged on the lower die base and penetrates through the female die frame fixing plate to be connected with the hole flanging male die. A second through hole is formed in the push plate, a third through hole is formed in the female die frame fixing plate, the first through hole, the second through hole and the third through hole are coaxial and have the same diameter, and the hole flanging male die extends into the second through hole and the third through hole. According to the utility model, hole flanging and chamfering can be completed at one time on the die structure.

Description

Technical Field

[0001] The utility model belongs to the field of automobile parts, and in particular relates to a die for turning holes in parts and chamfering holes. Background Art

[0002] During the production and processing of automotive parts, it is often necessary to drill holes and chamfer the hole openings. However, traditional mold structures generally only achieve drilling. To achieve chamfering, an additional chamfering step is required, which not only requires additional equipment and labor, but also increases management costs. Summary of the Invention

[0003] The problem to be solved by the utility model is to provide a hole turning and hole chamfering die, by which hole turning and hole chamfering can be achieved at one time, thus saving equipment, labor and management costs.

[0004] The technical solution provided by the utility model is: a hole-turning and hole-chamfering mold, comprising an upper mold and a lower mold, the upper mold comprising an upper mold base, a hole-turning die, a chamfering punch and a chamfering punch fixing plate, the chamfering punch being connected to the upper mold base through the chamfering punch fixing plate; a nitrogen spring 1 is provided on the upper mold base, the nitrogen spring 1 passes through the chamfering punch fixing plate and is connected to the hole-turning die; a through hole 1 is provided on the hole-turning die, the chamfering punch extends into the through hole 1; the lower mold comprises a lower mold base, a push plate, a die frame, a hole-turning punch and a die frame fixing plate, the push plate is provided in the die frame, the die frame is connected to the lower mold base through the die frame fixing plate; a nitrogen spring 2 is provided on the lower mold base, the nitrogen spring 2 passes through the die frame fixing plate and is connected to the hole-turning punch; a through hole 2 is provided on the push plate, the through hole 3 is provided on the die frame fixing plate, the through hole 1, the through hole 2 and the through hole 3 are coaxial and have the same diameter, the hole-turning punch extends into the through hole 2 and the through hole 3.

[0005] The upper die seat is provided with a pin hole, the flanging die is connected with a pin, the pin head is movably arranged in the pin hole, and the pin rod passes through the chamfering punch fixing plate and is fixedly connected to the flanging die.

[0006] A third nitrogen spring is provided on the lower die base, and a second nitrogen spring passes through the fixed plate of the die frame and is connected with the push plate.

[0007] The utility model adopts the above-mentioned structure. When in use, the part is placed between the upper die and the lower die of the hole-turning die. The hole-turning die is at the bottom dead center under the action of nitrogen spring 1, and the hole-turning punch is at the top dead center under the action of nitrogen spring 2. The hole-turning die clamps the product under the action of nitrogen spring 1. The upper die base is pressurized by the machine tool, which pushes the push plate to move downward. The hole-turning punch cannot move downward due to the action of nitrogen spring 1 and passively enters through hole 1, completing the hole-turning. When the push plate is tightly attached to the fixed plate of the die frame, the push plate and the hole-turning die stop moving. When the machine tool continues to move downward, it drives the chamfering punch downward. Nitrogen spring 1 is compressed, and the chamfering punch pushes the hole-turning punch to the bottom dead center, completing the chamfering. The utility model can achieve hole-turning and chamfering on one device, saving equipment, labor and management costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural schematic diagram of the utility model in the hole-turning state.

[0009] Figure 2 It is a structural schematic diagram of the utility model in a chamfered state.

[0010] Figure 3 for Figure 2 A partial enlarged view of the chamfering state at the middle chamfer punch. DETAILED DESCRIPTION

[0011] See also Figure 1 、 Figure 2 and Figure 3 The utility model includes an upper die and a lower die, the upper die includes an upper die base 1, a hole-turning die 5, a chamfering punch 4 and a chamfering punch fixing plate 3, the chamfering punch 4 is connected to the upper die base 1 through the chamfering punch fixing plate 3; an upper pad 2 is arranged between the upper die base 1 and the chamfering punch fixing plate 3; a nitrogen spring 14 is provided on the upper die base 1, the nitrogen spring 14 passes through the upper pad 2 and the chamfering punch fixing plate 3 and is connected to the hole-turning die 5; a through hole 1 is provided on the hole-turning die 5, and the chamfering punch 4 extends into the through hole 1; the lower die includes a lower die base 10, a push plate 6, a concave The die frame 7, the punch 11, and the die frame fixing plate 8 are provided with a push plate 6 within the die frame 7. The die frame 7 is connected to the lower die base 10 via the die frame fixing plate 8. A lower pad 9 is provided between the lower die base 10 and the die frame fixing plate 8. The lower die base 10 is provided with a second nitrogen spring 12, which passes through the lower pad 9 and the die frame fixing plate 8 and is connected to the punch 11. The push plate 6 is provided with a second through hole, and the die frame fixing plate 8 is provided with a third through hole. Through holes 1, 2, and 3 are coaxial and have the same diameter. The punch 11 extends into through holes 2 and 3. The lower die base 10 is provided with a third nitrogen spring 13, which passes through the lower pad 9 and the die frame fixing plate 8 and is connected to the push plate 6.

[0012] The upper die holder 1 is provided with a pin hole 16, and a pin 17 is connected to the flanging die 5. The pin head is movably disposed in the pin hole 16, and the pin rod passes through the chamfering punch fixing plate 3 and is fixedly connected to the flanging die 5. When the upper die holder drives the chamfering punch 4 downward, the nitrogen spring 14 is compressed, causing the pin to move within the pin hole 16. Conversely, the pin head is located at the bottom of the pin hole 16 and is supported, thereby providing support and stability for the flanging die 5.

[0013] A guide rod assembly 18 is provided between the upper die base 1 and the lower die base 10 for supporting the upper die base 1 and guiding the relative displacement between the upper die base 1 and the lower die base 10 .

[0014] The utility model adopts the above-mentioned structure. When in use, the part 15 is placed between the upper die and the lower die of the hole-turning die. The hole-turning die is at the bottom dead center under the action of nitrogen spring 1, and the hole-turning punch is at the top dead center under the action of nitrogen spring 2. The hole-turning die clamps the product under the action of nitrogen spring 1, and the upper die base is pressurized by the machine tool to push the push plate downward. The hole-turning punch cannot move downward due to the action of nitrogen spring 1 and passively enters through hole 1 to complete the hole-turning. When the push plate is tightly attached to the fixed plate of the die frame, the push plate and the hole-turning die stop moving. When the machine tool continues to move downward, it drives the chamfering punch downward. Nitrogen spring 1 is compressed, and the chamfering punch pushes the hole-turning punch to the bottom dead center to complete the chamfering. The utility model can realize hole-turning and chamfering on one device, saving equipment, labor and management costs.

Claims

1. A die for turning holes and chamfering holes of parts, comprising an upper die and a lower die, characterized in that: The upper die includes an upper die base, a hole-turning die, a chamfering punch and a chamfering punch fixing plate, and the chamfering punch is connected to the upper die base through the chamfering punch fixing plate; a nitrogen spring is provided on the upper die base, and the nitrogen spring passes through the chamfering punch fixing plate and is connected to the hole-turning die; a through hole is provided on the hole-turning die, and the chamfering punch extends into the through hole; the lower die includes a lower die base, a push plate, a die frame, a hole-turning punch and a die frame fixing plate, the push plate is provided in the die frame, and the die frame is connected to the lower die base through the die frame fixing plate; a nitrogen spring is provided on the lower die base, and the nitrogen spring passes through the die frame fixing plate and is connected to the hole-turning punch; a through hole is provided on the push plate, and a through hole is provided on the die frame fixing plate, and the through hole is coaxial and has the same diameter as the through hole one, the through hole two and the through hole three, and the hole-turning punch extends into the through hole two and the through hole three.

2. The die for hole turning and hole chamfering according to claim 1, characterized in that: The upper die seat is provided with a pin hole, the flanging die is connected with a pin, the pin head is movably arranged in the pin hole, and the pin rod passes through the chamfering punch fixing plate and is fixedly connected to the flanging die.

3. The part hole turning and hole chamfering die according to claim 1 or 2, characterized in that: The lower die base is provided with a nitrogen spring three, which passes through the fixed plate of the die frame and is connected with the push plate.

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