Stamping die for machining butterfly pin

Abstract

The stamping die comprises an upper die body, a lower die body and a lower die base, the upper die body is installed on stamping equipment through a die handle at the upper end of the upper die body, the lower die body is fixedly installed on the lower die base, a downward V-shaped deep groove is formed in the middle of the lower die body, and wavy shallow grooves are formed in the upper die faces of the left side and the right side of the V-shaped deep groove. The lower die face of the upper die is provided with a wave-shaped shallow groove matched with the lower die and an inserting plate matched with the V-shaped deep groove, and a cutter is installed on the side face of the upper die. By utilizing the stamping die provided in the technical scheme, a section of steel wire can be stamped into a butterfly pin workpiece, and the butterfly pin can be obtained only by simply processing the workpiece subsequently.

Description

Technical Field

[0001] The present invention belongs to the technical field of machining, and particularly relates to a stamping die for machining butterfly pins. Background Art

[0002] Figure 1 is a schematic structural diagram of a butterfly pin. This kind of butterfly pin is bent from a steel wire and is widely used in various mechanical products. For example, an anti-slip chain of an agricultural machine disclosed in the Chinese invention patent specification No. 2018209316658 and a diesel engine fuel quantity control switch disclosed in the Chinese invention patent specification No. 2021206116986 both use this kind of butterfly pin. In the prior art, the equipment and steps for machining butterfly pins are relatively complex. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a stamping die for machining butterfly pins.

[0004] To solve the above technical problem, the technical solution of the present invention is: a stamping die for machining butterfly pins, including an upper die, a lower die and a lower die base. The upper die is installed on a stamping device through a die shank at its upper end. The lower die is fixedly installed on the lower die base. A downward V-shaped deep groove is provided in the middle of the lower die. Wave-shaped shallow grooves are provided on the upper die surfaces on both sides of the V-shaped deep groove. The lower die surface of the upper die is provided with wave-shaped shallow grooves that cooperate with the lower die, and a plug plate that cooperates with the V-shaped deep groove. A cutter is installed on the side of the upper die.

[0005] Using the stamping die provided in the above technical solution, a section of steel wire can be stamped into a Figure 2 shown butterfly pin workpiece, and only simple processing needs to be performed on this workpiece to obtain Figure 1 shown butterfly pin.

[0006] As a further technical solution, a buffer member is placed at the bottom of the V-shaped deep groove. This buffer member is a rectangular frame bent from a round steel bar and is sleeved on the lower die. This round steel bar will rotate when the plug plate of the upper die presses downward, thus playing a certain buffering role, and can also reduce the wear of the bottom surface of the V-shaped deep groove caused by long-term stamping, thereby extending the service life of the lower die.

[0007] Further, a feeding mechanism and a limiting mechanism are also provided on the lower die base. The feeding mechanism and the cutter are located on the same side, and the limiting mechanism is located on the other side.

[0008] Further, a fine-tuning bolt is provided on the limiting mechanism.

[0009] In one embodiment, the feeding mechanism is provided with a guiding groove.

[0010] The stamping die provided by the present invention has the advantages of ingenious design and simple structure, and can quickly cut and stamp the steel wire into shape, thus greatly improving the work efficiency. Description of the Drawings

[0011] Figure 1 It is a schematic structural diagram of a butterfly pin; Figure 2 It is a butterfly pin workpiece after stamping and forming; Figure 3 It is a schematic structural diagram of the stamping die in the embodiment of the present invention; Figure 4 It is a schematic structural diagram of the buffer member in the embodiment of the present invention; The reference numerals are: 1. upper die; 1a. inserting plate; 1b. cutting tool; 2. lower die; 2a. V-shaped deep groove; 3. lower template; 4. feeding mechanism; 5. limiting mechanism; 6. fine-tuning bolt; 7. buffer member. Detailed Description of the Invention

[0012] In order to make the purpose, technical solutions and advantages of the invention more clear and understandable, the present invention will be described in detail below with reference to the drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not limited to the present invention.

[0013] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0014] Such as Figure 3 、 4A stamping die for processing butterfly pins as shown, comprising an upper die 1, a lower die 2, a lower die base 3, a feeding mechanism 4 and a limiting mechanism 5. The lower die 2, the feeding mechanism 4 and the limiting mechanism 5 are all fixedly installed on the lower die base 3. The feeding mechanism 4 is arranged at intervals on the left side of the lower die 2, and the limiting mechanism 5 is arranged on the right side of the lower die 2. The feeding mechanism 4 is provided with a guiding groove, and the limiting mechanism 5 is provided with a fine-tuning bolt 6. In the middle of the lower die 2, there is a downward V-shaped deep groove 2a, and wavy shallow grooves are provided on the upper die surfaces on both the left and right sides of the V-shaped deep groove 2a. The upper die 1 is installed on the stamping equipment through the die shank at its upper end. The lower die surface of the upper die 1 is provided with wavy shallow grooves that cooperate with the lower die 2, and a plug board 1a that cooperates with the V-shaped deep groove 2a. A cutting knife 1b is installed on the right side surface of the upper die 1, and the cutting knife 1b corresponds to the gap between the feeding mechanism 4 and the lower die 2.

[0015] As a further technical solution, a buffer member 7 is placed at the bottom of the V-shaped deep groove 2a. The buffer member 7 is a rectangular frame formed by bending a round steel bar and is sleeved on the lower die 2. When the plug board 1a of the upper die presses downward, this round steel bar will rotate, thus playing a certain buffering role and also reducing the wear of the bottom surface of the V-shaped deep groove 2a caused by long-term stamping.

[0016] Using the stamping die provided by this embodiment, a section of steel wire can be stamped into a butterfly pin workpiece as shown in Figure 2 After that, only simple bending processing needs to be performed on this workpiece to obtain the Figure 1 shown butterfly pin.

[0017] The above embodiment is a preferred implementation scheme of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the technical solution is within the scope of the present invention patent.

[0018] In order to make it more convenient for those of ordinary skill in the art to understand the improvements of the present invention over the prior art, some drawings and descriptions of the present invention have been simplified. And for the sake of clarity, some other elements have also been omitted in this application document. Those of ordinary skill in the art should be aware that these omitted elements can also constitute the content of the present invention.

Claims

1. A stamping die for processing butterfly pins, characterized in that: It includes an upper die (1), a lower die (2) and a lower die base (3). The upper die (1) is installed on a stamping device through a die shank at its upper end. The lower die (2) is fixedly installed on the lower die base (3). A downward V-shaped deep groove (2a) is provided in the middle of the lower die (2). Wave-shaped shallow grooves are provided on the upper die surfaces on both the left and right sides of the V-shaped deep groove (2a). Wave-shaped shallow grooves matching the lower die (2) are provided on the lower die surface of the upper die (1), and a plug board (1a) matching the V-shaped deep groove (2a). A cutter (1b) is installed on the side of the upper die (1).

2. The stamping die for processing butterfly pins according to claim 1, characterized in that: A buffer (7) is placed at the bottom of the V-shaped deep groove (2a). The buffer (7) is a rectangular frame formed by bending a round steel bar and is sleeved on the lower die (2).

3. The stamping die for processing the butterfly pin according to claim 2, wherein: A feeding mechanism (4) and a limiting mechanism (5) are further provided on the lower die base (3). The feeding mechanism (4) and the cutter (1b) are on the same side, and the limiting mechanism (5) is on the other side.

4. The stamping die for processing butterfly pins according to claim 3, characterized in that: A fine-tuning bolt (6) is provided on the limiting mechanism (5).

5. The stamping die for processing butterfly pins according to claim 3, characterized in that: The feeding mechanism (4) is provided with a guiding groove.

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