Multifunctional cold stamping die

Abstract

The utility model discloses a multifunctional cold stamping die which comprises an upper die and a lower die, the upper die is provided with a forming upper pressing plate, a flanging upper pressing plate and an upper flanging cutter, the flanging upper pressing plate is installed on the upper die through a stroke spring, the forming upper pressing plate is installed on the upper die through a stroke spring, and the upper flanging cutter is fixedly installed on the upper die. The upper flanging cutters are located on the two sides of the upper flanging pressing plate. And a forming lower pressing plate, a lower flanging cutter and a lower punch are mounted on the lower die. According to the multifunctional cold stamping die, drawing and flanging can be completed while a stamping part is formed at a time, the formed stamping part in a drawing shape and a flanging shape can be formed through stamping in a single work, the stamping cost is greatly saved, the productivity is effectively improved, and manpower and material resources are saved.

Description

Technical Field

[0001] This utility model relates to the field of stamping technology, and in particular to a multifunctional cold stamping die. Background Technology

[0002] Currently, traditional cold stamping dies require three sets of dies to complete the part forming process: first, the workpiece is drawn; then, it undergoes a second forming process; and finally, it is flanged. This significantly limits production efficiency, especially during periods of high output, where production speed cannot keep up, resulting in three times the manufacturing cost. This not only causes economic losses for the company but also consumes the labor force of employees. Utility Model Content

[0003] In view of this, the present invention provides a multifunctional cold stamping die that enables drawing, forming and flanging processes to be completed on the same die.

[0004] The technical means adopted in this utility model are as follows: a multi-functional cold stamping die, including an upper die and a lower die.

[0005] The upper mold is equipped with a forming upper pressure plate, a flanging upper pressure plate, and an upper flanging knife. The flanging upper pressure plate is installed on the upper mold via a stroke spring, the forming upper pressure plate is installed on the upper mold via a stroke spring, and the upper flanging knife is fixedly installed on the upper mold, with the upper flanging knife located on both sides of the flanging upper pressure plate.

[0006] The lower die is equipped with a forming pressure plate, a lower flanging cutter, and a lower punch.

[0007] Preferably, the lower pressure plate, the lower flanging cutter, and the lower punch are installed on the lower die via threaded connections.

[0008] Preferably, the travel distance of the travel spring is 45-85mm.

[0009] The multifunctional cold stamping die provided by this utility model can simultaneously form stamped parts by drawing and flanging in one operation. It can form stamped parts with both drawn and flanged shapes in a single operation, which greatly saves stamping costs, effectively increases production capacity, and saves manpower and resources. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the exploded structure of this utility model;

[0011] Figure 2 This is a schematic diagram of the upper mold in this utility model;

[0012] Figure 3 This is a schematic diagram of the lower mold structure of this utility model;

[0013] Figure 4 for Figure 3A schematic diagram of the cross-section along the middle AA;

[0014] Figure 5 for Figure 3 A schematic diagram of the cross-section along the middle edge BB. Detailed Implementation

[0015] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0016] like Figure 1 As shown, a multifunctional cold stamping die includes an upper die 5 and a lower die 1.

[0017] The upper mold is equipped with a forming upper pressure plate 3, a flanging upper pressure plate 4, and an upper flanging cutter 8. The flanging upper pressure plate 4 is mounted on the upper mold 5 via a travel spring, the travel distance of which is 45mm. The forming upper pressure plate 3 is mounted on the upper mold 5 via a travel spring, the travel distance of which is 85mm. The upper flanging cutter 8 is fixedly mounted on the upper mold 5 and is located on both sides of the flanging upper pressure plate 4.

[0018] The lower die 1 is equipped with a forming lower pressure plate 2, a lower flanging cutter 6, and a lower punch 7. The lower pressure plate 2, lower flanging cutter 6, and lower punch 7 are usually installed on the lower die 1 by threaded connection, which adopts a screw and screw hole structure.

[0019] Its working principle is as follows:

[0020] 1) After the upper die 5 presses down on the lower die 1 until the flanging upper pressure plate 4 and the forming lower pressure plate 2 are closed, the stamped part is attached to the forming lower pressure plate 2, which is the stamped part required for stamping; at the same time, the stroke spring of the flanging upper pressure plate 4 retracts, and the upper flanging cutter 8 correspondingly flangs the stamped part at this position until the stroke spring ends, and one side of the stamped part ( Figure 1 The flanging work (not shown on the right side) is complete.

[0021] 2) During the pressing process, the upper forming platen 3 gradually comes into contact with the lower flanging blade 6. During the pressing process, the lower flanging blade 6 flangs the stamped part, and the other side of the stamped part ( Figure 1 The flanging work (shown as front and back positions in the image) is complete.

[0022] 3) After the upper die 5 and the forming lower pressure plate 2 are fully closed, the lower punch 7 and the stamped part move relative to each other during the closing process. Here, the lower punch 7 is a protrusion that can hold the stamped part in place, thereby achieving the effect of shaping and drawing the stamped part in a localized area, thus completing the drawing of the stamped part. It can be seen that the use of multi-functional cold stamping dies can complete the drawing and flanging of the stamped part in one step. A single operation can stamp a formed stamped part with both drawn and flanged shapes, which greatly saves stamping costs, effectively increases production capacity, and saves manpower and material resources.

[0023] 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 within the scope of protection of the present utility model.

Claims

1. A multifunctional cold stamping die, comprising an upper die and a lower die, characterized in that: The upper mold is equipped with a forming upper pressure plate, a flanging upper pressure plate, and an upper flanging knife. The flanging upper pressure plate is installed on the upper mold by a stroke spring, the forming upper pressure plate is installed on the upper mold by a stroke spring, and the upper flanging knife is fixedly installed on the upper mold. The upper flanging knife is located on both sides of the flanging upper pressure plate. The lower die is equipped with a forming pressure plate, a lower flanging cutter, and a lower punch.

2. The multifunctional cold stamping die according to claim 1, characterized in that, The lower pressure plate, lower flanging blade, and lower punch are installed on the lower die via threaded connections.

3. The multifunctional cold stamping die according to claim 1, characterized in that, The travel distance of the stroke spring is 45-85mm.

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